diff options
| author | Angel Pons <th3fanbus@gmail.com> | 2020-03-16 23:17:32 +0100 |
|---|---|---|
| committer | Matt DeVillier <matt.devillier@gmail.com> | 2020-03-18 21:42:05 +0000 |
| commit | 7c49cb8f9ca86e791c392da40e7f0d3cb7ed47f3 (patch) | |
| tree | a9d37cd90987d0c5e17c7a5bb1c6380c7cda8eef /src | |
| parent | 1cd7d3e664fcf119a2b2f5e3fd8824b5682c6807 (diff) | |
nb/intel/sandybridge: Tidy up code and comments
- Reformat some lines of code
- Move MCHBAR registers and documentation into a separate file
- Add a few missing macros
- Rename some registers
- Rewrite several comments
- Use C-style comments for consistency
- Rewrite some hex constants
- Use HOST_BRIDGE instead of PCI_DEV(0, 0, 0)
With BUILD_TIMELESS=1, this commit does not change the result of:
- Asus P8Z77-V LX2 with native raminit.
- Asus P8Z77-M PRO with MRC raminit.
Change-Id: I6e113e48afd685ca63cfcb11ff9fcf9df6e41e46
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39599
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
22 files changed, 2027 insertions, 1996 deletions
diff --git a/src/northbridge/intel/sandybridge/acpi.c b/src/northbridge/intel/sandybridge/acpi.c index 074e9413fa..d0434259d4 100644 --- a/src/northbridge/intel/sandybridge/acpi.c +++ b/src/northbridge/intel/sandybridge/acpi.c @@ -33,38 +33,39 @@ unsigned long acpi_fill_mcfg(unsigned long current) if (!dev) return current; - pciexbar_reg=pci_read_config32(dev, PCIEXBAR); + pciexbar_reg = pci_read_config32(dev, PCIEXBAR); - // MMCFG not supported or not enabled. + /* MMCFG not supported or not enabled */ if (!(pciexbar_reg & (1 << 0))) return current; switch ((pciexbar_reg >> 1) & 3) { - case 0: // 256MB - pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)); + case 0: /* 256MB */ + pciexbar = pciexbar_reg & (0xffffffffULL << 28); max_buses = 256; break; - case 1: // 128M - pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)); + case 1: /* 128M */ + pciexbar = pciexbar_reg & (0xffffffffULL << 27); max_buses = 128; break; - case 2: // 64M - pciexbar = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26)); + case 2: /* 64M */ + pciexbar = pciexbar_reg & (0xffffffffULL << 26); max_buses = 64; break; - default: // RSVD + default: /* RSVD */ return current; } if (!pciexbar) return current; - current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current, - pciexbar, 0x0, 0x0, max_buses - 1); + current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current, pciexbar, 0, 0, + max_buses - 1); return current; } + static unsigned long acpi_create_igfx_rmrr(const unsigned long current) { const u32 base_mask = ~(u32)(MiB - 1); @@ -73,7 +74,7 @@ static unsigned long acpi_create_igfx_rmrr(const unsigned long current) if (!host) return 0; - const u32 bgsm = pci_read_config32(host, BGSM) & base_mask; + const u32 bgsm = pci_read_config32(host, BGSM) & base_mask; const u32 tolud = pci_read_config32(host, TOLUD) & base_mask; if (!bgsm || !tolud) return 0; @@ -89,7 +90,7 @@ static unsigned long acpi_fill_dmar(unsigned long current) unsigned long tmp; tmp = current; - current += acpi_create_dmar_drhd(current, 0, 0, IOMMU_BASE1); + current += acpi_create_dmar_drhd(current, 0, 0, GFXVT_BASE); current += acpi_create_dmar_ds_pci(current, 0, 2, 0); current += acpi_create_dmar_ds_pci(current, 0, 2, 1); acpi_dmar_drhd_fixup(tmp, current); @@ -104,34 +105,37 @@ static unsigned long acpi_fill_dmar(unsigned long current) } const unsigned long tmp = current; - current += acpi_create_dmar_drhd(current, - DRHD_INCLUDE_PCI_ALL, 0, IOMMU_BASE2); - current += acpi_create_dmar_ds_ioapic(current, - 2, PCH_IOAPIC_PCI_BUS, PCH_IOAPIC_PCI_SLOT, 0); + current += acpi_create_dmar_drhd(current, DRHD_INCLUDE_PCI_ALL, 0, VTVC0_BASE); + + current += acpi_create_dmar_ds_ioapic(current, 2, PCH_IOAPIC_PCI_BUS, + PCH_IOAPIC_PCI_SLOT, 0); + size_t i; for (i = 0; i < 8; ++i) - current += acpi_create_dmar_ds_msi_hpet(current, - 0, PCH_HPET_PCI_BUS, PCH_HPET_PCI_SLOT, i); + current += acpi_create_dmar_ds_msi_hpet(current, 0, PCH_HPET_PCI_BUS, + PCH_HPET_PCI_SLOT, i); + acpi_dmar_drhd_fixup(tmp, current); return current; } -unsigned long northbridge_write_acpi_tables(struct device *const dev, - unsigned long current, +unsigned long northbridge_write_acpi_tables(struct device *const dev, unsigned long current, struct acpi_rsdp *const rsdp) { - const u32 capid0_a = pci_read_config32(dev, 0xe4); + const u32 capid0_a = pci_read_config32(dev, CAPID0_A); if (capid0_a & (1 << 23)) return current; printk(BIOS_DEBUG, "ACPI: * DMAR\n"); + acpi_dmar_t *const dmar = (acpi_dmar_t *)current; + acpi_create_dmar(dmar, DMAR_INTR_REMAP, acpi_fill_dmar); current += dmar->header.length; current = acpi_align_current(current); - acpi_add_table(rsdp, dmar); + acpi_add_table(rsdp, dmar); current = acpi_align_current(current); printk(BIOS_DEBUG, "current = %lx\n", current); diff --git a/src/northbridge/intel/sandybridge/bootblock.c b/src/northbridge/intel/sandybridge/bootblock.c index b6ba395080..9dfeed6a4a 100644 --- a/src/northbridge/intel/sandybridge/bootblock.c +++ b/src/northbridge/intel/sandybridge/bootblock.c @@ -20,19 +20,17 @@ void bootblock_early_northbridge_init(void) uint32_t reg; /* - * The "io" variant of the config access is explicitly used to - * setup the PCIEXBAR because CONFIG_MMCONF_SUPPORT is set to - * to true. That way all subsequent non-explicit config accesses use - * MCFG. This code also assumes that bootblock_northbridge_init() is - * the first thing called in the non-asm boot block code. The final - * assumption is that no assembly code is using the + * The "io" variant of the config access is explicitly used to setup the + * PCIEXBAR because CONFIG_MMCONF_SUPPORT is set to to true. That way, all + * subsequent non-explicit config accesses use MCFG. This code also assumes + * that bootblock_northbridge_init() is the first thing called in the non-asm + * boot block code. The final assumption is that no assembly code is using the * CONFIG_MMCONF_SUPPORT option to do PCI config accesses. * - * The PCIEXBAR is assumed to live in the memory mapped IO space under - * 4GiB. + * The PCIEXBAR is assumed to live in the memory mapped IO space under 4GiB. */ reg = 0; - pci_io_write_config32(PCI_DEV(0,0,0), PCIEXBAR + 4, reg); + pci_io_write_config32(HOST_BRIDGE, PCIEXBAR + 4, reg); reg = CONFIG_MMCONF_BASE_ADDRESS | 4 | 1; /* 64MiB - 0-63 buses. */ - pci_io_write_config32(PCI_DEV(0,0,0), PCIEXBAR, reg); + pci_io_write_config32(HOST_BRIDGE, PCIEXBAR, reg); } diff --git a/src/northbridge/intel/sandybridge/chip.h b/src/northbridge/intel/sandybridge/chip.h index 5f5bf31f34..83181567a5 100644 --- a/src/northbridge/intel/sandybridge/chip.h +++ b/src/northbridge/intel/sandybridge/chip.h @@ -19,9 +19,9 @@ /* * Digital Port Hotplug Enable: - * 0x04 = Enabled, 2ms short pulse + * 0x04 = Enabled, 2ms short pulse * 0x05 = Enabled, 4.5ms short pulse - * 0x06 = Enabled, 6ms short pulse + * 0x06 = Enabled, 6ms short pulse * 0x07 = Enabled, 100ms short pulse */ struct northbridge_intel_sandybridge_config { @@ -48,7 +48,7 @@ struct northbridge_intel_sandybridge_config { struct i915_gpu_controller_info gfx; /* - * Maximum PCI mmio size in MiB. + * Maximum PCI MMIO size in MiB. */ u16 pci_mmio_size; @@ -63,7 +63,8 @@ struct northbridge_intel_sandybridge_config { bool ec_present; bool ddr3lv_support; - /* N mode functionality. Leave this setting at 0. + /* + * N mode functionality. Leave this setting at 0. * 0 Auto * 1 1N * 2 2N @@ -74,12 +75,13 @@ struct northbridge_intel_sandybridge_config { DDR_NMODE_2N, } nmode; - /* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows - * for DIMM SPD data to specify whether double-rate is required for - * extended operating temperature range. - * 0 Enable double rate based upon temperature thresholds - * 1 Normal rate - * 2 Always enable double rate + /* + * DDR refresh rate config. JEDEC Standard No.21-C Annex K allows for DIMM SPD data to + * specify whether double-rate is required for extended operating temperature range. + * + * 0 Enable double rate based upon temperature thresholds + * 1 Normal rate + * 2 Always enable double rate */ enum { DDR_REFRESH_RATE_TEMP_THRES = 0, @@ -93,7 +95,7 @@ struct northbridge_intel_sandybridge_config { * [1] = overcurrent pin * [2] = length * - * Ports 0-7 can be mapped to OC0-OC3 + * Ports 0-7 can be mapped to OC0-OC3 * Ports 8-13 can be mapped to OC4-OC7 * * Port Length diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c index 10ac071f52..390fadca65 100644 --- a/src/northbridge/intel/sandybridge/early_init.c +++ b/src/northbridge/intel/sandybridge/early_init.c @@ -25,49 +25,49 @@ static void systemagent_vtd_init(void) { - const u32 capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), CAPID0_A); + const u32 capid0_a = pci_read_config32(HOST_BRIDGE, CAPID0_A); if (capid0_a & (1 << 23)) return; - /* setup BARs */ - MCHBAR32(VTD1_BASE + 4) = IOMMU_BASE1 >> 32; - MCHBAR32(VTD1_BASE) = IOMMU_BASE1 | 1; - MCHBAR32(VTD2_BASE + 4) = IOMMU_BASE2 >> 32; - MCHBAR32(VTD2_BASE) = IOMMU_BASE2 | 1; + /* Setup BARs */ + MCHBAR32(GFXVTBAR + 4) = GFXVT_BASE >> 32; + MCHBAR32(GFXVTBAR) = GFXVT_BASE | 1; + MCHBAR32(VTVC0BAR + 4) = VTVC0_BASE >> 32; + MCHBAR32(VTVC0BAR) = VTVC0_BASE | 1; - /* lock policies */ - write32((void *)(IOMMU_BASE1 + 0xff0), 0x80000000); + /* Lock policies */ + write32((void *)(GFXVT_BASE + 0xff0), 0x80000000); const struct device *const azalia = pcidev_on_root(0x1b, 0); if (azalia && azalia->enabled) { - write32((void *)(IOMMU_BASE2 + 0xff0), 0x20000000); - write32((void *)(IOMMU_BASE2 + 0xff0), 0xa0000000); + write32((void *)(VTVC0_BASE + 0xff0), 0x20000000); + write32((void *)(VTVC0_BASE + 0xff0), 0xa0000000); } else { - write32((void *)(IOMMU_BASE2 + 0xff0), 0x80000000); + write32((void *)(VTVC0_BASE + 0xff0), 0x80000000); } } static void enable_pam_region(void) { - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM0, 0x30); - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM1, 0x33); - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM2, 0x33); - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM3, 0x33); - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM4, 0x33); - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM5, 0x33); - pci_write_config8(PCI_DEV(0, 0x00, 0), PAM6, 0x33); + pci_write_config8(HOST_BRIDGE, PAM0, 0x30); + pci_write_config8(HOST_BRIDGE, PAM1, 0x33); + pci_write_config8(HOST_BRIDGE, PAM2, 0x33); + pci_write_config8(HOST_BRIDGE, PAM3, 0x33); + pci_write_config8(HOST_BRIDGE, PAM4, 0x33); + pci_write_config8(HOST_BRIDGE, PAM5, 0x33); + pci_write_config8(HOST_BRIDGE, PAM6, 0x33); } static void sandybridge_setup_bars(void) { printk(BIOS_DEBUG, "Setting up static northbridge registers..."); /* Set up all hardcoded northbridge BARs */ - pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR, DEFAULT_EPBAR | 1); - pci_write_config32(PCI_DEV(0, 0x00, 0), EPBAR + 4, (0LL+DEFAULT_EPBAR) >> 32); - pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR, (uintptr_t)DEFAULT_MCHBAR | 1); - pci_write_config32(PCI_DEV(0, 0x00, 0), MCHBAR + 4, (0LL+(uintptr_t)DEFAULT_MCHBAR) >> 32); - pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR, (uintptr_t)DEFAULT_DMIBAR | 1); - pci_write_config32(PCI_DEV(0, 0x00, 0), DMIBAR + 4, (0LL+(uintptr_t)DEFAULT_DMIBAR) >> 32); + pci_write_config32(HOST_BRIDGE, EPBAR, DEFAULT_EPBAR | 1); + pci_write_config32(HOST_BRIDGE, EPBAR + 4, (0LL + DEFAULT_EPBAR) >> 32); + pci_write_config32(HOST_BRIDGE, MCHBAR, (uintptr_t)DEFAULT_MCHBAR | 1); + pci_write_config32(HOST_BRIDGE, MCHBAR + 4, (0LL + (uintptr_t)DEFAULT_MCHBAR) >> 32); + pci_write_config32(HOST_BRIDGE, DMIBAR, (uintptr_t)DEFAULT_DMIBAR | 1); + pci_write_config32(HOST_BRIDGE, DMIBAR + 4, (0LL + (uintptr_t)DEFAULT_DMIBAR) >> 32); printk(BIOS_DEBUG, " done\n"); } @@ -76,10 +76,9 @@ static void sandybridge_setup_graphics(void) { u32 reg32; u16 reg16; - u8 reg8; - u8 gfxsize; + u8 reg8, gfxsize; - reg16 = pci_read_config16(PCI_DEV(0,2,0), PCI_DEVICE_ID); + reg16 = pci_read_config16(PCI_DEV(0, 2, 0), PCI_DEVICE_ID); switch (reg16) { case 0x0102: /* GT1 Desktop */ case 0x0106: /* GT1 Mobile */ @@ -105,7 +104,7 @@ static void sandybridge_setup_graphics(void) /* Setup IGD memory by setting GGC[7:3] = 1 for 32MB */ gfxsize = 0; } - reg16 = pci_read_config16(PCI_DEV(0,0,0), GGC); + reg16 = pci_read_config16(HOST_BRIDGE, GGC); reg16 &= ~0x00f8; reg16 |= (gfxsize + 1) << 3; /* Program GTT memory by setting GGC[9:8] = 2MB */ @@ -113,7 +112,7 @@ static void sandybridge_setup_graphics(void) reg16 |= 2 << 8; /* Enable VGA decode */ reg16 &= ~0x0002; - pci_write_config16(PCI_DEV(0,0,0), GGC, reg16); + pci_write_config16(HOST_BRIDGE, GGC, reg16); /* Enable 256MB aperture */ reg8 = pci_read_config8(PCI_DEV(0, 2, 0), MSAC); @@ -123,7 +122,7 @@ static void sandybridge_setup_graphics(void) /* Erratum workarounds */ reg32 = MCHBAR32(SAPMCTL); - reg32 |= (1 << 9)|(1 << 10); + reg32 |= (1 << 9) | (1 << 10); MCHBAR32(SAPMCTL) = reg32; /* Enable SA Clock Gating */ @@ -131,52 +130,56 @@ static void sandybridge_setup_graphics(void) MCHBAR32(SAPMCTL) = reg32 | 1; /* GPU RC6 workaround for sighting 366252 */ - reg32 = MCHBAR32(0x5d14); + reg32 = MCHBAR32(SSKPD_HI); reg32 |= (1 << 31); - MCHBAR32(0x5d14) = reg32; + MCHBAR32(SSKPD_HI) = reg32; - /* VLW */ + /* VLW (Virtual Legacy Wire?) */ reg32 = MCHBAR32(0x6120); reg32 &= ~(1 << 0); MCHBAR32(0x6120) = reg32; - reg32 = MCHBAR32(PAIR_CTL); + reg32 = MCHBAR32(INTRDIRCTL); reg32 |= (1 << 4) | (1 << 5); - MCHBAR32(PAIR_CTL) = reg32; + MCHBAR32(INTRDIRCTL) = reg32; } static void start_peg_link_training(void) { - u32 tmp; - u32 deven; - - /* PEG on IvyBridge+ needs a special startup sequence. - * As the MRC has its own initialization code skip it. */ - if (((pci_read_config16(PCI_DEV(0, 0, 0), PCI_DEVICE_ID) & - BASE_REV_MASK) != BASE_REV_IVB) || - CONFIG(HAVE_MRC)) + u32 tmp, deven; + + const u16 base_rev = pci_read_config16(HOST_BRIDGE, PCI_DEVICE_ID) & BASE_REV_MASK; + /* + * PEG on IvyBridge+ needs a special startup sequence. + * As the MRC has its own initialization code skip it. + */ + if ((base_rev != BASE_REV_IVB) || CONFIG(HAVE_MRC)) return; - deven = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN); + deven = pci_read_config32(HOST_BRIDGE, DEVEN); + /* + * For each PEG device, set bit 5 to use three retries for OC (Offset Calibration). + * We also clear DEFER_OC (bit 16) in order to start PEG training. + */ if (deven & DEVEN_PEG10) { - tmp = pci_read_config32(PCI_DEV(0, 1, 0), 0xC24) & ~(1 << 16); - pci_write_config32(PCI_DEV(0, 1, 0), 0xC24, tmp | (1 << 5)); + tmp = pci_read_config32(PCI_DEV(0, 1, 0), AFE_PWRON) & ~(1 << 16); + pci_write_config32(PCI_DEV(0, 1, 0), AFE_PWRON, tmp | (1 << 5)); } if (deven & DEVEN_PEG11) { - tmp = pci_read_config32(PCI_DEV(0, 1, 1), 0xC24) & ~(1 << 16); - pci_write_config32(PCI_DEV(0, 1, 1), 0xC24, tmp | (1 << 5)); + tmp = pci_read_config32(PCI_DEV(0, 1, 1), AFE_PWRON) & ~(1 << 16); + pci_write_config32(PCI_DEV(0, 1, 1), AFE_PWRON, tmp | (1 << 5)); } if (deven & DEVEN_PEG12) { - tmp = pci_read_config32(PCI_DEV(0, 1, 2), 0xC24) & ~(1 << 16); - pci_write_config32(PCI_DEV(0, 1, 2), 0xC24, tmp | (1 << 5)); + tmp = pci_read_config32(PCI_DEV(0, 1, 2), AFE_PWRON) & ~(1 << 16); + pci_write_config32(PCI_DEV(0, 1, 2), AFE_PWRON, tmp | (1 << 5)); } if (deven & DEVEN_PEG60) { - tmp = pci_read_config32(PCI_DEV(0, 6, 0), 0xC24) & ~(1 << 16); - pci_write_config32(PCI_DEV(0, 6, 0), 0xC24, tmp | (1 << 5)); + tmp = pci_read_config32(PCI_DEV(0, 6, 0), AFE_PWRON) & ~(1 << 16); + pci_write_config32(PCI_DEV(0, 6, 0), AFE_PWRON, tmp | (1 << 5)); } } @@ -187,17 +190,17 @@ void systemagent_early_init(void) u8 reg8; /* Device ID Override Enable should be done very early */ - capid0_a = pci_read_config32(PCI_DEV(0, 0, 0), 0xe4); + capid0_a = pci_read_config32(HOST_BRIDGE, CAPID0_A); if (capid0_a & (1 << 10)) { const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE; - reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0xf3); + reg8 = pci_read_config8(HOST_BRIDGE, DIDOR); reg8 &= ~7; /* Clear 2:0 */ if (is_mobile) reg8 |= 1; /* Set bit 0 */ - pci_write_config8(PCI_DEV(0, 0, 0), 0xf3, reg8); + pci_write_config8(HOST_BRIDGE, DIDOR, reg8); } /* Setup all BARs required for early PCIe and raminit */ @@ -210,24 +213,25 @@ void systemagent_early_init(void) systemagent_vtd_init(); /* Device Enable, don't touch PEG bits */ - deven = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN) | DEVEN_IGD; - pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, deven); + deven = pci_read_config32(HOST_BRIDGE, DEVEN) | DEVEN_IGD; + pci_write_config32(HOST_BRIDGE, DEVEN, deven); sandybridge_setup_graphics(); - /* Write magic value to start PEG link training. - * This should be done in PCI device enumeration, but - * the PCIe specification requires to wait at least 100msec - * after reset for devices to come up. - * As we don't want to increase boot time, enable it early and - * assume the PEG is up as soon as PCI enumeration starts. - * TODO: use time stamps to ensure the timings are met */ + /* + * Write magic values to start PEG link training. This should be done in PCI device + * enumeration, but the PCIe specification requires to wait at least 100msec after + * reset for devices to come up. As we don't want to increase boot time, enable it + * early and assume that PEG is up as soon as PCI enumeration starts. + * + * TODO: use timestamps to ensure the timings are met. + */ start_peg_link_training(); } void northbridge_romstage_finalize(int s3resume) { - MCHBAR16(SSKPD) = 0xCAFE; + MCHBAR16(SSKPD_HI) = 0xCAFE; romstage_handoff_init(s3resume); } diff --git a/src/northbridge/intel/sandybridge/finalize.c b/src/northbridge/intel/sandybridge/finalize.c index 6a3156e4bc..ab2a21c37f 100644 --- a/src/northbridge/intel/sandybridge/finalize.c +++ b/src/northbridge/intel/sandybridge/finalize.c @@ -16,36 +16,34 @@ #include <device/pci_ops.h> #include "sandybridge.h" -#define PCI_DEV_SNB PCI_DEV(0, 0, 0) - void intel_sandybridge_finalize_smm(void) { - pci_or_config16(PCI_DEV_SNB, GGC, 1 << 0); - pci_or_config16(PCI_DEV_SNB, PAVPC, 1 << 2); - pci_or_config32(PCI_DEV_SNB, DPR, 1 << 0); - pci_or_config32(PCI_DEV_SNB, MESEG_MASK, MELCK); - pci_or_config32(PCI_DEV_SNB, REMAPBASE, 1 << 0); - pci_or_config32(PCI_DEV_SNB, REMAPLIMIT, 1 << 0); - pci_or_config32(PCI_DEV_SNB, TOM, 1 << 0); - pci_or_config32(PCI_DEV_SNB, TOUUD, 1 << 0); - pci_or_config32(PCI_DEV_SNB, BDSM, 1 << 0); - pci_or_config32(PCI_DEV_SNB, BGSM, 1 << 0); - pci_or_config32(PCI_DEV_SNB, TSEGMB, 1 << 0); - pci_or_config32(PCI_DEV_SNB, TOLUD, 1 << 0); + pci_or_config16(HOST_BRIDGE, GGC, 1 << 0); + pci_or_config16(HOST_BRIDGE, PAVPC, 1 << 2); + pci_or_config32(HOST_BRIDGE, DPR, 1 << 0); + pci_or_config32(HOST_BRIDGE, MESEG_MASK, MELCK); + pci_or_config32(HOST_BRIDGE, REMAPBASE, 1 << 0); + pci_or_config32(HOST_BRIDGE, REMAPLIMIT, 1 << 0); + pci_or_config32(HOST_BRIDGE, TOM, 1 << 0); + pci_or_config32(HOST_BRIDGE, TOUUD, 1 << 0); + pci_or_config32(HOST_BRIDGE, BDSM, 1 << 0); + pci_or_config32(HOST_BRIDGE, BGSM, 1 << 0); + pci_or_config32(HOST_BRIDGE, TSEGMB, 1 << 0); + pci_or_config32(HOST_BRIDGE, TOLUD, 1 << 0); - MCHBAR32_OR(MMIO_PAVP_CTL, 1 << 0); /* PAVP */ - MCHBAR32_OR(SAPMCTL, 1 << 31); /* SA PM */ - MCHBAR32_OR(0x6020, 1 << 0); /* UMA GFX */ - MCHBAR32_OR(0x63fc, 1 << 0); /* VTDTRK */ - MCHBAR32_OR(0x6800, 1 << 31); - MCHBAR32_OR(0x7000, 1 << 31); - MCHBAR32_OR(0x77fc, 1 << 0); + MCHBAR32_OR(PAVP_MSG, 1 << 0); /* PAVP */ + MCHBAR32_OR(SAPMCTL, 1 << 31); /* SA PM */ + MCHBAR32_OR(UMAGFXCTL, 1 << 0); /* UMA GFX */ + MCHBAR32_OR(VTDTRKLCK, 1 << 0); /* VTDTRK */ + MCHBAR32_OR(REQLIM, 1 << 31); + MCHBAR32_OR(DMIVCLIM, 1 << 31); + MCHBAR32_OR(CRDTLCK, 1 << 0); /* Memory Controller Lockdown */ MCHBAR8(MC_LOCK) = 0x8f; /* Read+write the following */ - MCHBAR32(0x6030) = MCHBAR32(0x6030); - MCHBAR32(0x6034) = MCHBAR32(0x6034); - MCHBAR32(0x6008) = MCHBAR32(0x6008); + MCHBAR32(VDMBDFBARKVM) = MCHBAR32(VDMBDFBARKVM); + MCHBAR32(VDMBDFBARPAVP) = MCHBAR32(VDMBDFBARPAVP); + MCHBAR32(HDAUDRID) = MCHBAR32(HDAUDRID); } diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c index e6dfbc4548..f0232e069a 100644 --- a/src/northbridge/intel/sandybridge/gma.c +++ b/src/northbridge/intel/sandybridge/gma.c @@ -57,7 +57,7 @@ static const struct gt_powermeter snb_pm_gt1[] = { { 0xa240, 0x00000000 }, { 0xa244, 0x00000000 }, { 0xa248, 0x8000421e }, - { 0 } + { 0 }, }; static const struct gt_powermeter snb_pm_gt2[] = { @@ -80,7 +80,7 @@ static const struct gt_powermeter snb_pm_gt2[] = { { 0xa240, 0x00000000 }, { 0xa244, 0x00000000 }, { 0xa248, 0x8000421e }, - { 0 } + { 0 }, }; static const struct gt_powermeter ivb_pm_gt1[] = { @@ -136,7 +136,7 @@ static const struct gt_powermeter ivb_pm_gt1[] = { { 0xaa3c, 0x00001c00 }, { 0xaa54, 0x00000004 }, { 0xaa60, 0x00060000 }, - { 0 } + { 0 }, }; static const struct gt_powermeter ivb_pm_gt2_17w[] = { @@ -192,7 +192,7 @@ static const struct gt_powermeter ivb_pm_gt2_17w[] = { { 0xaa3c, 0x00003900 }, { 0xaa54, 0x00000008 }, { 0xaa60, 0x00110000 }, - { 0 } + { 0 }, }; static const struct gt_powermeter ivb_pm_gt2_35w[] = { @@ -248,12 +248,12 @@ static const struct gt_powermeter ivb_pm_gt2_35w[] = { { 0xaa3c, 0x00003900 }, { 0xaa54, 0x00000008 }, { 0xaa60, 0x00110000 }, - { 0 } + { 0 }, }; -/* some vga option roms are used for several chipsets but they only have one - * PCI ID in their header. If we encounter such an option rom, we need to do - * the mapping ourselves +/* + * Some VGA option roms are used for several chipsets but they only have one PCI ID in their + * header. If we encounter such an option rom, we need to do the mapping ourselves. */ u32 map_oprom_vendev(u32 vendev) @@ -262,17 +262,17 @@ u32 map_oprom_vendev(u32 vendev) switch (vendev) { case 0x80860102: /* SNB GT1 Desktop */ - case 0x8086010a: /* SNB GT1 Server */ + case 0x8086010a: /* SNB GT1 Server */ case 0x80860112: /* SNB GT2 Desktop */ - case 0x80860116: /* SNB GT2 Mobile */ + case 0x80860116: /* SNB GT2 Mobile */ case 0x80860122: /* SNB GT2 Desktop >=1.3GHz */ - case 0x80860126: /* SNB GT2 Mobile >=1.3GHz */ + case 0x80860126: /* SNB GT2 Mobile >=1.3GHz */ case 0x80860152: /* IVB GT1 Desktop */ - case 0x80860156: /* IVB GT1 Mobile */ + case 0x80860156: /* IVB GT1 Mobile */ case 0x80860162: /* IVB GT2 Desktop */ - case 0x80860166: /* IVB GT2 Mobile */ - case 0x8086016a: /* IVB GT2 Server */ - new_vendev = 0x80860106;/* SNB GT1 Mobile */ + case 0x80860166: /* IVB GT2 Mobile */ + case 0x8086016a: /* IVB GT2 Server */ + new_vendev = 0x80860106;/* SNB GT1 Mobile */ break; } @@ -385,18 +385,15 @@ static void gma_pm_init_pre_vbios(struct device *dev) if (tdp <= 17) { /* <=17W ULV */ - printk(BIOS_DEBUG, "IVB GT2 17W " - "Power Meter Weights\n"); + printk(BIOS_DEBUG, "IVB GT2 17W Power Meter Weights\n"); gtt_write_powermeter(ivb_pm_gt2_17w); } else if ((tdp >= 25) && (tdp <= 35)) { /* 25W-35W */ - printk(BIOS_DEBUG, "IVB GT2 25W-35W " - "Power Meter Weights\n"); + printk(BIOS_DEBUG, "IVB GT2 25W-35W Power Meter Weights\n"); gtt_write_powermeter(ivb_pm_gt2_35w); } else { /* All others */ - printk(BIOS_DEBUG, "IVB GT2 35W " - "Power Meter Weights\n"); + printk(BIOS_DEBUG, "IVB GT2 35W Power Meter Weights\n"); gtt_write_powermeter(ivb_pm_gt2_35w); } } @@ -552,7 +549,7 @@ static void gma_pm_init_post_vbios(struct device *dev) /* Setup Digital Port Hotplug */ reg32 = gtt_read(0xc4030); if (!reg32) { - reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2; + reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2; reg32 |= (conf->gpu_dp_c_hotplug & 0x7) << 10; reg32 |= (conf->gpu_dp_d_hotplug & 0x7) << 18; gtt_write(0xc4030, reg32); @@ -599,15 +596,15 @@ static void gma_enable_swsci(void) { u16 reg16; - /* clear DMISCI status */ + /* Clear DMISCI status */ reg16 = inw(DEFAULT_PMBASE + TCO1_STS); reg16 &= DMISCI_STS; outw(DEFAULT_PMBASE + TCO1_STS, reg16); - /* clear acpi tco status */ + /* Clear ACPI TCO status */ outl(DEFAULT_PMBASE + GPE0_STS, TCOSCI_STS); - /* enable acpi tco scis */ + /* Enable ACPI TCO SCIs */ reg16 = inw(DEFAULT_PMBASE + GPE0_EN); reg16 |= TCOSCI_EN; outw(DEFAULT_PMBASE + GPE0_EN, reg16); @@ -654,10 +651,9 @@ static void gma_func0_init(struct device *dev) intel_gma_restore_opregion(); } -const struct i915_gpu_controller_info * -intel_gma_get_controller_info(void) +const struct i915_gpu_controller_info *intel_gma_get_controller_info(void) { - struct device *dev = pcidev_on_root(0x2, 0); + struct device *dev = pcidev_on_root(2, 0); if (!dev) { return NULL; } @@ -675,10 +671,8 @@ static void gma_ssdt(struct device *device) drivers_intel_gma_displays_ssdt_generate(gfx); } -static unsigned long -gma_write_acpi_tables(struct device *const dev, - unsigned long current, - struct acpi_rsdp *const rsdp) +static unsigned long gma_write_acpi_tables(struct device *const dev, unsigned long current, + struct acpi_rsdp *const rsdp) { igd_opregion_t *opregion = (igd_opregion_t *)current; global_nvs_t *gnvs; @@ -706,44 +700,46 @@ static const char *gma_acpi_name(const struct device *dev) return "GFX0"; } -/* called by pci set_vga_bridge function */ +/* Called by PCI set_vga_bridge function */ static void gma_func0_disable(struct device *dev) { u16 reg16; struct device *dev_host = pcidev_on_root(0, 0); reg16 = pci_read_config16(dev_host, GGC); - reg16 |= (1 << 1); /* disable VGA decode */ + reg16 |= (1 << 1); /* Disable VGA decode */ pci_write_config16(dev_host, GGC, reg16); dev->enabled = 0; } static struct pci_operations gma_pci_ops = { - .set_subsystem = pci_dev_set_subsystem, + .set_subsystem = pci_dev_set_subsystem, }; static struct device_operations gma_func0_ops = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, .acpi_fill_ssdt_generator = gma_ssdt, - .init = gma_func0_init, - .scan_bus = 0, - .enable = 0, - .disable = gma_func0_disable, - .ops_pci = &gma_pci_ops, - .acpi_name = gma_acpi_name, - .write_acpi_tables = gma_write_acpi_tables, + .init = gma_func0_init, + .scan_bus = NULL, + .enable = NULL, + .disable = gma_func0_disable, + .ops_pci = &gma_pci_ops, + .acpi_name = gma_acpi_name, + .write_acpi_tables = gma_write_acpi_tables, }; -static const unsigned short pci_device_ids[] = { 0x0102, 0x0106, 0x010a, 0x0112, - 0x0116, 0x0122, 0x0126, 0x0156, - 0x0166, 0x0162, 0x016a, 0x0152, - 0 }; +static const unsigned short pci_device_ids[] = { + 0x0102, 0x0106, 0x010a, 0x0112, + 0x0116, 0x0122, 0x0126, 0x0156, + 0x0166, 0x0162, 0x016a, 0x0152, + 0 +}; static const struct pci_driver gma __pci_driver = { - .ops = &gma_func0_ops, - .vendor = PCI_VENDOR_ID_INTEL, + .ops = &gma_func0_ops, + .vendor = PCI_VENDOR_ID_INTEL, .devices = pci_device_ids, }; diff --git a/src/northbridge/intel/sandybridge/gma.h b/src/northbridge/intel/sandybridge/gma.h index 899edbb1aa..bf04deed5b 100644 --- a/src/northbridge/intel/sandybridge/gma.h +++ b/src/northbridge/intel/sandybridge/gma.h @@ -17,9 +17,10 @@ struct i915_gpu_controller_info; -int i915lightup_sandy(const struct i915_gpu_controller_info *info, - u32 physbase, u16 pio, u8 *mmio, u32 lfb); -int i915lightup_ivy(const struct i915_gpu_controller_info *info, - u32 physbase, u16 pio, u8 *mmio, u32 lfb); +int i915lightup_sandy(const struct i915_gpu_controller_info *info, u32 physbase, u16 pio, + u8 *mmio, u32 lfb); + +int i915lightup_ivy(const struct i915_gpu_controller_info *info, u32 physbase, u16 pio, + u8 *mmio, u32 lfb); #endif /* NORTHBRIDGE_INTEL_SANDYBRIDGE_GMA_H */ diff --git a/src/northbridge/intel/sandybridge/mchbar_regs.h b/src/northbridge/intel/sandybridge/mchbar_regs.h new file mode 100644 index 0000000000..929392bcd6 --- /dev/null +++ b/src/northbridge/intel/sandybridge/mchbar_regs.h @@ -0,0 +1,430 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2008 coresystems GmbH + * Copyright (C) 2011 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __SANDYBRIDGE_MCHBAR_REGS_H__ +#define __SANDYBRIDGE_MCHBAR_REGS_H__ + +/* + * ### IOSAV command queue notes ### + * + * Intel provides a command queue of depth four. + * Every command is configured by using multiple MCHBAR registers. + * On executing the command queue, you have to specify its depth (number of commands). + * + * The macros for these registers can take some integer parameters, within these bounds: + * channel: [0..1] + * index: [0..3] + * lane: [0..8] + * + * Note that these ranges are 'closed': both endpoints are included. + * + * + * + * ### Register description ### + * + * IOSAV_n_SP_CMD_ADDR_ch(channel, index) + * Sub-sequence command addresses. Controls the address, bank address and slotrank signals. + * + * Bitfields: + * [0..15] Row / Column Address. + * [16..18] The result of (10 + [16..18]) is the number of valid row bits. + * Note: Value 1 is not implemented. Not that it really matters, though. + * Value 7 is reserved, as the hardware does not support it. + * [20..22] Bank Address. + * [24..25] Rank select. Let's call it "ranksel", as it is mentioned later. + * + * IOSAV_n_ADDR_UPDATE_ch(channel, index) + * How the address shall be updated after executing the sub-sequence command. + * + * Bitfields: + * [0] Increment CAS/RAS by 1. + * [1] Increment CAS/RAS by 8. + * [2] Increment bank select by 1. + * [3..4] Increment rank select by 1, 2 or 3. + * [5..9] Known as "addr_wrap". Address bits will wrap around the [addr_wrap..0] range. + * [10..11] LFSR update: + * 00: Do not use the LFSR function. + * 01: Undefined, treat as Reserved. + * 10: Apply LFSR on the [addr_wrap..0] bit range. + * 11: Apply LFSR on the [addr_wrap..3] bit range. + * + * [12..15] Update rate. The number of command runs between address updates. For example: + * 0: Update every command run. + * 1: Update every second command run. That is, half of the command rate. + * N: Update after N command runs without updates. + * + * [16..17] LFSR behavior on the deselect cycles (when no sub-seq command is issued): + * 0: No change w.r.t. the last issued command. + * 1: LFSR XORs with address & command (excluding CS), but does not update. + * 2: LFSR XORs with address & command (excluding CS), and updates. + * + * IOSAV_n_SP_CMD_CTRL_ch(channel, index) + * Special command control register. Controls the DRAM command signals. + * + * Bitfields: + * [0] !RAS signal. + * [1] !CAS signal. + * [2] !WE signal. + * [4..7] CKE, per rank and channel. + * [8..11] ODT, per rank and channel. + * [12] Chip Select mode control. + * [13..16] Chip select, per rank and channel. It works as follows: + * + * entity CS_BLOCK is + * port ( + * MODE : in std_logic; -- Mode select at [12] + * RANKSEL : in std_logic_vector(0 to 3); -- Decoded "ranksel" value + * CS_CTL : in std_logic_vector(0 to 3); -- Chip select control at [13..16] + * CS_Q : out std_logic_vector(0 to 3) -- CS signals + * ); + * end entity CS_BLOCK; + * + * architecture RTL of CS_BLOCK is + * begin + * if MODE = '1' then + * CS_Q <= not RANKSEL and CS_CTL; + * else + * CS_Q <= CS_CTL; + * end if; + * end architecture RTL; + * + * [17] Auto Precharge. Only valid when using 10 row bits! + * + * IOSAV_n_SUBSEQ_CTRL_ch(channel, index) + * Sub-sequence parameters. Controls repetititons, delays and data orientation. + * + * Bitfields: + * [0..8] Number of repetitions of the sub-sequence command. + * [10..14] Gap, number of clock-cycles to wait before sending the next command. + * [16..24] Number of clock-cycles to idle between sub-sequence commands. + * [26..27] The direction of the data. + * 00: None, does not handle data + * 01: Read + * 10: Write + * 11: Read & Write + * + * IOSAV_n_ADDRESS_LFSR_ch(channel, index) + * 23-bit LFSR state register. It is written into the LFSR when the sub-sequence is loaded, + * and then read back from the LFSR when the sub-sequence is done. + * + * Bitfields: + * [0..22] LFSR state. + * + * IOSAV_SEQ_CTL_ch(channel) + * Control the sequence level in IOSAV: number of sub-sequences, iterations, maintenance... + * + * Bitfields: + * [0..7] Number of full sequence executions. When this field becomes non-zero, then the + * sequence starts running immediately. This value is decremented after completing + * a full sequence iteration. When it is zero, the sequence is done. No decrement + * is done if this field is set to 0xff. This is the "infinite repeat" mode, and + * it is manually aborted by clearing this field. + * + * [8..16] Number of wait cycles after each sequence iteration. This wait's purpose is to + * allow performing maintenance in infinite loops. When non-zero, RCOMP, refresh + * and ZQXS operations can take place. + * + * [17] Stop-on-error mode: Whether to stop sequence execution when an error occurs. + * [18..19] Number of sub-sequences. The programmed value is the index of the last sub-seq. + * [20] If set, keep refresh disabled until the next sequence execution. + * DANGER: Refresh must be re-enabled within the (9 * tREFI) period! + * + * [22] If set, sequence execution will not prevent refresh. This cannot be set when + * bit [20] is also set, or was set on the previous sequence. This bit exists so + * that the sequence machine can be used as a timer without affecting the memory. + * + * [23] If set, a output pin is asserted on the first detected error. This output can + * be used as a trigger for an oscilloscope or a logic analyzer, which is handy. + * + * IOSAV_DATA_CTL_ch(channel) + * Data-related controls in IOSAV mode. + * + * Bitfields: + * [0..7] WDB (Write Data Buffer) pattern length: [0..7] = (length / 8) - 1; + * [8..15] WDB read pointer. Points at the data used for IOSAV write transactions. + * [16..23] Comparison pointer. Used to compare data from IOSAV read transactions. + * [24] If set, increment pointers only when micro-breakpoint is active. + * + * IOSAV_STATUS_ch(channel) + * State of the IOSAV sequence machine. Should be polled after sending an IOSAV sequence. + * + * Bitfields: + * [0] IDLE: IOSAV is sleeping. + * [1] BUSY: IOSAV is running a sequence. + * [2] DONE: IOSAV has completed a sequence. + * [3] ERROR: IOSAV detected an error and stopped on it, when using Stop-on-error. + * [4] PANIC: The refresh machine issued a Panic Refresh, and IOSAV was aborted. + * [5] RCOMP: RComp failure. Unused, consider Reserved. + * [6] Cleared with a new sequence, and set when done and refresh counter is drained. + * + */ + +/* Indexed register helper macros */ +#define Gz(r, z) ((r) + ((z) << 8)) +#define Ly(r, y) ((r) + ((y) << 2)) +#define Cx(r, x) ((r) + ((x) << 10)) +#define CxLy(r, x, y) ((r) + ((x) << 10) + ((y) << 2)) +#define GzLy(r, z, y) ((r) + ((z) << 8) + ((y) << 2)) + +/* Byte lane training register base addresses */ +#define LANEBASE_B0 0x0000 +#define LANEBASE_B1 0x0200 +#define LANEBASE_B2 0x0400 +#define LANEBASE_B3 0x0600 +#define LANEBASE_ECC 0x0800 /* ECC lane is in the middle of the data lanes */ +#define LANEBASE_B4 0x1000 +#define LANEBASE_B5 0x1200 +#define LANEBASE_B6 0x1400 +#define LANEBASE_B7 0x1600 + +/* Byte lane register offsets */ +#define GDCRTRAININGRESULT(ch, y) GzLy(0x0004, ch, y) /* Test results for PI config */ +#define GDCRTRAININGRESULT1(ch) GDCRTRAININGRESULT(ch, 0) /* 0x0004 */ +#define GDCRTRAININGRESULT2(ch) GDCRTRAININGRESULT(ch, 1) /* 0x0008 */ +#define GDCRRX(ch, rank) GzLy(0x10, ch, rank) /* Time setting for lane Rx */ +#define GDCRTX(ch, rank) GzLy(0x20, ch, rank) /* Time setting for lane Tx */ + +/* Register definitions */ +#define GDCRCLKRANKSUSED_ch(ch) Gz(0x0c00, ch) /* Indicates which rank is populated */ +#define GDCRCLKCOMP_ch(ch) Gz(0x0c04, ch) /* RCOMP result register */ +#define GDCRCKPICODE_ch(ch) Gz(0x0c14, ch) /* PI coding for DDR CLK pins */ +#define GDCRCKLOGICDELAY_ch(ch) Gz(0x0c18, ch) /* Logic delay of 1 QCLK in CLK slice */ +#define GDDLLFUSE_ch(ch) Gz(0x0c20, ch) /* Used for fuse download to the DLLs */ +#define GDCRCLKDEBUGMUXCFG_ch(ch) Gz(0x0c3c, ch) /* Debug MUX control */ + +#define GDCRCMDDEBUGMUXCFG_Cz_S(ch) Gz(0x0e3c, ch) /* Debug MUX control */ + +#define CRCOMPOFST1_ch(ch) Gz(0x1810, ch) /* DQ, CTL and CLK Offset values */ + +#define GDCRTRAININGMOD_ch(ch) Gz(0x3000, ch) /* Data training mode control */ +#define GDCRTRAININGRESULT1_ch(ch) Gz(0x3004, ch) /* Training results according to PI */ +#define GDCRTRAININGRESULT2_ch(ch) Gz(0x3008, ch) + +#define GDCRCTLRANKSUSED_ch(ch) Gz(0x3200, ch) /* Indicates which rank is populated */ +#define GDCRCMDCOMP_ch(ch) Gz(0x3204, ch) /* COMP values register */ +#define GDCRCMDCTLCOMP_ch(ch) Gz(0x3208, ch) /* COMP values register */ +#define GDCRCMDPICODING_ch(ch) Gz(0x320c, ch) /* Command and control PI coding */ + +#define GDCRTRAININGMOD 0x3400 /* Data training mode control register */ +#define GDCRDATACOMP 0x340c /* COMP values register */ + +#define CRCOMPOFST2 0x3714 /* CMD DRV, SComp and Static Leg controls */ + +/* MC per-channel registers */ +#define TC_DBP_ch(ch) Cx(0x4000, ch) /* Timings: BIN */ +#define TC_RAP_ch(ch) Cx(0x4004, ch) /* Timings: Regular access */ +#define TC_RWP_ch(ch) Cx(0x4008, ch) /* Timings: Read / Write */ +#define TC_OTHP_ch(ch) Cx(0x400c, ch) /* Timings: Other parameters */ +#define SCHED_SECOND_CBIT_ch(ch) Cx(0x401c, ch) /* More chicken bits */ +#define SCHED_CBIT_ch(ch) Cx(0x4020, ch) /* Chicken bits in scheduler */ +#define SC_ROUNDT_LAT_ch(ch) Cx(0x4024, ch) /* Round-trip latency per rank */ +#define SC_IO_LATENCY_ch(ch) Cx(0x4028, ch) /* IO Latency Configuration */ +#define SCRAMBLING_SEED_1_ch(ch) Cx(0x4034, ch) /* Scrambling seed 1 */ +#define SCRAMBLING_SEED_2_LO_ch(ch) Cx(0x4038, ch) /* Scrambling seed 2 low */ +#define SCRAMBLING_SEED_2_HI_ch(ch) Cx(0x403c, ch) /* Scrambling seed 2 high */ + +/* IOSAV Bytelane Bit-wise error */ +#define IOSAV_By_BW_SERROR_ch(ch, y) CxLy(0x4040, ch, y) + +/* IOSAV Bytelane Bit-wise compare mask */ +#define IOSAV_By_BW_MASK_ch(ch, y) CxLy(0x4080, ch, y) + +/* + * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks. + * Different counters for transactions that are issued on the ring agents (core or GT) and + * transactions issued in the SA. + */ +#define SC_PR_CNT_CONFIG_ch(ch) Cx(0x40a8, ch) +#define SC_PCIT_ch(ch) Cx(0x40ac, ch) /* Page-close idle timer setup - 8 bits */ +#define PM_PDWN_CONFIG_ch(ch) Cx(0x40b0, ch) /* Power-down (CKE-off) operation config */ +#define ECC_INJECT_COUNT_ch(ch) Cx(0x40b4, ch) /* ECC error injection count */ +#define ECC_DFT_ch(ch) Cx(0x40b8, ch) /* ECC DFT features (ECC4ANA, error inject) */ +#define SC_WR_ADD_DELAY_ch(ch) Cx(0x40d0, ch) /* Extra WR delay to overcome WR-flyby issue */ + +#define IOSAV_By_BW_SERROR_C_ch(ch, y) CxLy(0x4140, ch, y) /* IOSAV Bytelane Bit-wise error */ + +/* IOSAV sub-sequence control registers */ +#define IOSAV_n_SP_CMD_ADDR_ch(ch, y) CxLy(0x4200, ch, y) /* Special command address. */ +#define IOSAV_n_ADDR_UPDATE_ch(ch, y) CxLy(0x4210, ch, y) /* Address update control */ +#define IOSAV_n_SP_CMD_CTRL_ch(ch, y) CxLy(0x4220, ch, y) /* Control of command signals */ +#define IOSAV_n_SUBSEQ_CTRL_ch(ch, y) CxLy(0x4230, ch, y) /* Sub-sequence controls */ +#define IOSAV_n_ADDRESS_LFSR_ch(ch, y) CxLy(0x4240, ch, y) /* 23-bit LFSR state value */ + +#define PM_THML_STAT_ch(ch) Cx(0x4280, ch) /* Thermal status of each rank */ +#define IOSAV_SEQ_CTL_ch(ch) Cx(0x4284, ch) /* IOSAV sequence level control */ +#define IOSAV_DATA_CTL_ch(ch) Cx(0x4288, ch) /* Data control in IOSAV mode */ +#define IOSAV_STATUS_ch(ch) Cx(0x428c, ch) /* State of the IOSAV sequence machine */ +#define TC_ZQCAL_ch(ch) Cx(0x4290, ch) /* ZQCAL control register */ +#define TC_RFP_ch(ch) Cx(0x4294, ch) /* Refresh Parameters */ +#define TC_RFTP_ch(ch) Cx(0x4298, ch) /* Refresh Timing Parameters */ +#define TC_MR2_SHADOW_ch(ch) Cx(0x429c, ch) /* MR2 shadow - copy of DDR configuration */ +#define MC_INIT_STATE_ch(ch) Cx(0x42a0, ch) /* IOSAV mode control */ +#define TC_SRFTP_ch(ch) Cx(0x42a4, ch) /* Self-refresh timing parameters */ +#define IOSAV_ERROR_ch(ch) Cx(0x42ac, ch) /* Data vector count of the first error */ +#define IOSAV_DC_MASK_ch(ch) Cx(0x42b0, ch) /* IOSAV data check masking */ + +#define IOSAV_By_ERROR_COUNT_ch(ch, y) CxLy(0x4340, ch, y) /* Per-byte 16-bit error count */ +#define IOSAV_G_ERROR_COUNT_ch(ch) Cx(0x4364, ch) /* Global 16-bit error count */ + +/** WARNING: Only applies to Ivy Bridge! */ +#define IOSAV_BYTE_SERROR_ch(ch) Cx(0x4368, ch) /** Byte-Wise Sticky Error */ +#define IOSAV_BYTE_SERROR_C_ch(ch) Cx(0x436c, ch) /** Byte-Wise Sticky Error Clear */ + +#define PM_TRML_M_CONFIG_ch(ch) Cx(0x4380, ch) /* Thermal mode configuration */ +#define PM_CMD_PWR_ch(ch) Cx(0x4384, ch) /* Power contribution of commands */ +#define PM_BW_LIMIT_CONFIG_ch(ch) Cx(0x4388, ch) /* Bandwidth throttling on overtemp */ +#define SC_WDBWM_ch(ch) Cx(0x438c, ch) /* Watermarks and starvation counter */ + +/* MC Channel Broadcast registers */ +#define TC_DBP 0x4c00 /* Timings: BIN */ +#define TC_RAP 0x4c04 /* Timings: Regular access */ +#define TC_RWP 0x4c08 /* Timings: Read / Write */ +#define TC_OTHP 0x4c0c /* Timings: Other parameters */ +#define SCHED_SECOND_CBIT 0x4c1c /* More chicken bits */ +#define SCHED_CBIT 0x4c20 /* Chicken bits in scheduler */ +#define SC_ROUNDT_LAT 0x4c24 /* Round-trip latency per rank */ +#define SC_IO_LATENCY 0x4c28 /* IO Latency Configuration */ +#define SCRAMBLING_SEED_1 0x4c34 /* Scrambling seed 1 */ +#define SCRAMBLING_SEED_2_LO 0x4c38 /* Scrambling seed 2 low */ +#define SCRAMBLING_SEED_2_HI 0x4c3c /* Scrambling seed 2 high */ + +#define IOSAV_By_BW_SERROR(y) Ly(0x4c40, y) /* IOSAV Bytelane Bit-wise error */ +#define IOSAV_By_BW_MASK(y) Ly(0x4c80, y) /* IOSAV Bytelane Bit-wise compare mask */ + +/* + * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks. + * Different counters for transactions that are issued on the ring agents (core or GT) and + * transactions issued in the SA. + */ +#define SC_PR_CNT_CONFIG 0x4ca8 +#define SC_PCIT 0x4cac /* Page-close idle timer setup - 8 bits */ +#define PM_PDWN_CONFIG 0x4cb0 /* Power-down (CKE-off) operation config */ +#define ECC_INJECT_COUNT 0x4cb4 /* ECC error injection count */ +#define ECC_DFT 0x4cb8 /* ECC DFT features (ECC4ANA, error inject) */ +#define SC_WR_ADD_DELAY 0x4cd0 /* Extra WR delay to overcome WR-flyby issue */ + +/** Opportunistic reads configuration during write-major-mode (WMM) */ +#define WMM_READ_CONFIG 0x4cd4 /** WARNING: Only exists on IVB! */ + +#define IOSAV_By_BW_SERROR_C(y) Ly(0x4d40, y) /* IOSAV Bytelane Bit-wise error */ + +#define IOSAV_n_SP_CMD_ADDR(n) Ly(0x4e00, n) /* Sub-sequence special command address */ +#define IOSAV_n_ADDR_UPDATE(n) Ly(0x4e10, n) /* Address update after command execution */ +#define IOSAV_n_SP_CMD_CTRL(n) Ly(0x4e20, n) /* Command signals in sub-sequence command */ +#define IOSAV_n_SUBSEQ_CTRL(n) Ly(0x4e30, n) /* Sub-sequence command parameter control */ +#define IOSAV_n_ADDRESS_LFSR(n) Ly(0x4e40, n) /* 23-bit LFSR value of the sequence */ + +#define PM_THML_STAT 0x4e80 /* Thermal status of each rank */ +#define IOSAV_SEQ_CTL 0x4e84 /* IOSAV sequence level control */ +#define IOSAV_DATA_CTL 0x4e88 /* Data control in IOSAV mode */ +#define IOSAV_STATUS 0x4e8c /* State of the IOSAV sequence machine */ +#define TC_ZQCAL 0x4e90 /* ZQCAL control register */ +#define TC_RFP 0x4e94 /* Refresh Parameters */ +#define TC_RFTP 0x4e98 /* Refresh Timing Parameters */ +#define TC_MR2_SHADOW 0x4e9c /* MR2 shadow - copy of DDR configuration */ +#define MC_INIT_STATE 0x4ea0 /* IOSAV mode control */ +#define TC_SRFTP 0x4ea4 /* Self-refresh timing parameters */ + +/** + * Auxiliary register in mcmnts synthesis FUB (Functional Unit Block). Additionally, this + * register is also used to enable IOSAV_n_SP_CMD_ADDR optimization on Ivy Bridge. + */ +#define MCMNTS_SPARE 0x4ea8 /** WARNING: Reserved, use only on IVB! */ + +#define IOSAV_ERROR 0x4eac /* Data vector count of the first error */ +#define IOSAV_DC_MASK 0x4eb0 /* IOSAV data check masking */ + +#define IOSAV_By_ERROR_COUNT(y) Ly(0x4f40, y) /* Per-byte 16-bit error counter */ +#define IOSAV_G_ERROR_COUNT 0x4f64 /* Global 16-bit error counter */ + +/** WARNING: Only applies to Ivy Bridge! */ +#define IOSAV_BYTE_SERROR 0x4f68 /** Byte-Wise Sticky Error */ +#define IOSAV_BYTE_SERROR_C 0x4f6c /** Byte-Wise Sticky Error Clear */ + +#define PM_TRML_M_CONFIG 0x4f80 /* Thermal mode configuration */ +#define PM_CMD_PWR 0x4f84 /* Power contribution of commands */ +#define PM_BW_LIMIT_CONFIG 0x4f88 /* Bandwidth throttling on overtemperature */ +#define SC_WDBWM 0x4f8c /* Watermarks and starvation counter config */ + +/* No, there's no need to get mad about the Memory Address Decoder */ +#define MAD_CHNL 0x5000 /* Address Decoder Channel Configuration */ +#define MAD_DIMM(ch) Ly(0x5004, ch) /* Channel characteristics */ +#define MAD_DIMM_CH0 MAD_DIMM(0) /* Channel 0 is at 0x5004 */ +#define MAD_DIMM_CH1 MAD_DIMM(1) /* Channel 1 is at 0x5008 */ +#define MAD_DIMM_CH2 MAD_DIMM(2) /* Channel 2 is at 0x500c (unused on SNB) */ + +#define MAD_ZR 0x5014 /* Address Decode Zones */ +#define MCDECS_SPARE 0x5018 /* Spare register in mcdecs synthesis FUB */ +#define MCDECS_CBIT 0x501c /* Chicken bits in mcdecs synthesis FUB */ + +#define CHANNEL_HASH 0x5024 /** WARNING: Only exists on IVB! */ + +#define MC_INIT_STATE_G 0x5030 /* High-level behavior in IOSAV mode */ +#define MRC_REVISION 0x5034 /* MRC Revision */ +#define PM_DLL_CONFIG 0x5064 /* Memory Controller I/O DLL config */ +#define RCOMP_TIMER 0x5084 /* RCOMP evaluation timer register */ + +#define MC_LOCK 0x50fc /* Memory Controlller Lock register */ + +#define GFXVTBAR 0x5400 /* Base address for IGD */ +#define VTVC0BAR 0x5410 /* Base address for PEG, USB, SATA, etc. */ + +/* On Ivy Bridge, this is used to enable Power Aware Interrupt Routing */ +#define INTRDIRCTL 0x5418 /* Interrupt Redirection Control */ + +/* PAVP message register. Bit 0 locks PAVP settings, and bits [31..20] are an offset. */ +#define PAVP_MSG 0x5500 + +#define MEM_TRML_ESTIMATION_CONFIG 0x5880 +#define MEM_TRML_THRESHOLDS_CONFIG 0x5888 +#define MEM_TRML_INTERRUPT 0x58a8 + +/* Some power MSRs are also represented in MCHBAR */ +#define MCH_PKG_POWER_LIMIT_LO 0x59a0 /* Turbo Power Limit 1 parameters */ +#define MCH_PKG_POWER_LIMIT_HI 0x59a4 /* Turbo Power Limit 2 parameters */ + +#define SSKPD 0x5d10 /* 64-bit scratchpad register */ +#define SSKPD_HI 0x5d14 +#define BIOS_RESET_CPL 0x5da8 /* 8-bit */ + +/* PCODE will sample SAPM-related registers at the end of Phase 4. */ +#define MC_BIOS_REQ 0x5e00 /* Memory frequency request register */ +#define MC_BIOS_DATA 0x5e04 /* Miscellaneous information for BIOS */ +#define SAPMCTL 0x5f00 /* Bit 3 enables DDR EPG (C7i) on IVB */ +#define M_COMP 0x5f08 /* Memory COMP control */ +#define SAPMTIMERS 0x5f10 /* SAPM timers in 10ns (100 MHz) units */ + +/* WARNING: Only applies to Sandy Bridge! */ +#define BANDTIMERS_SNB 0x5f18 /* MPLL and PPLL time to do self-banding */ + +/** WARNING: Only applies to Ivy Bridge! */ +#define SAPMTIMERS2_IVB 0x5f18 /** Extra latency for DDRIO EPG exit (C7i) */ +#define BANDTIMERS_IVB 0x5f20 /** MPLL and PPLL time to do self-banding */ + +/* Finalize registers. The names come from Haswell, as the finalize sequence is the same. */ +#define HDAUDRID 0x6008 +#define UMAGFXCTL 0x6020 +#define VDMBDFBARKVM 0x6030 +#define VDMBDFBARPAVP 0x6034 +#define VTDTRKLCK 0x63fc +#define REQLIM 0x6800 +#define DMIVCLIM 0x7000 +#define PEGCTL 0x7010 /* Bit 0 is PCIPWRGAT (clock gate all PEG controllers) */ +#define CRDTCTL3 0x740c /* Minimum completion credits for PCIe/DMI */ +#define CRDTCTL4 0x7410 /* Read Return Tracker credits */ +#define CRDTLCK 0x77fc + +#endif /* __SANDYBRIDGE_MCHBAR_REGS_H__ */ diff --git a/src/northbridge/intel/sandybridge/memmap.c b/src/northbridge/intel/sandybridge/memmap.c index 03e8db6cd7..60b6dcdf31 100644 --- a/src/northbridge/intel/sandybridge/memmap.c +++ b/src/northbridge/intel/sandybridge/memmap.c @@ -26,18 +26,17 @@ static uintptr_t smm_region_start(void) { /* Base of TSEG is top of usable DRAM */ - uintptr_t tom = pci_read_config32(PCI_DEV(0, 0, 0), TSEGMB); - return tom; + return pci_read_config32(HOST_BRIDGE, TSEGMB); } void *cbmem_top_chipset(void) { - return (void *) smm_region_start(); + return (void *)smm_region_start(); } static uintptr_t northbridge_get_tseg_base(void) { - return ALIGN_DOWN(smm_region_start(), 1*MiB); + return ALIGN_DOWN(smm_region_start(), 1 * MiB); } static size_t northbridge_get_tseg_size(void) @@ -48,24 +47,27 @@ static size_t northbridge_get_tseg_size(void) void smm_region(uintptr_t *start, size_t *size) { *start = northbridge_get_tseg_base(); - *size = northbridge_get_tseg_size(); + *size = northbridge_get_tseg_size(); } void fill_postcar_frame(struct postcar_frame *pcf) { - uintptr_t top_of_ram; + uintptr_t top_of_ram = (uintptr_t)cbmem_top(); - top_of_ram = (uintptr_t)cbmem_top(); - /* Cache 8MiB below the top of ram. On sandybridge systems the top of + /* + * Cache 8MiB below the top of ram. On sandybridge systems the top of * RAM under 4GiB is the start of the TSEG region. It is required to * be 8MiB aligned. Set this area as cacheable so it can be used later - * for ramstage before setting up the entire RAM as cacheable. */ - postcar_frame_add_mtrr(pcf, top_of_ram - 8*MiB, 8*MiB, MTRR_TYPE_WRBACK); + * for ramstage before setting up the entire RAM as cacheable. + */ + postcar_frame_add_mtrr(pcf, top_of_ram - 8 * MiB, 8 * MiB, MTRR_TYPE_WRBACK); - /* Cache 8MiB at the top of ram. Top of RAM on sandybridge systems + /* + * Cache 8MiB at the top of ram. Top of RAM on sandybridge systems * is where the TSEG region resides. However, it is not restricted * to SMM mode until SMM has been relocated. By setting the region * to cacheable it provides faster access when relocating the SMM - * handler as well as using the TSEG region for other purposes. */ - postcar_frame_add_mtrr(pcf, top_of_ram, 8*MiB, MTRR_TYPE_WRBACK); + * handler as well as using the TSEG region for other purposes. + */ + postcar_frame_add_mtrr(pcf, top_of_ram, 8 * MiB, MTRR_TYPE_WRBACK); } diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c index eb102db933..23c1489acb 100644 --- a/src/northbridge/intel/sandybridge/northbridge.c +++ b/src/northbridge/intel/sandybridge/northbridge.c @@ -35,11 +35,9 @@ static uint64_t uma_memory_size = 0; int bridge_silicon_revision(void) { if (bridge_revision_id < 0) { - uint8_t stepping = cpuid_eax(1) & 0xf; - uint8_t bridge_id = pci_read_config16( - pcidev_on_root(0, 0), - PCI_DEVICE_ID) & 0xf0; - bridge_revision_id = bridge_id | stepping; + uint8_t stepping = cpuid_eax(1) & 0x0f; + uint8_t bridge_id = pci_read_config16(pcidev_on_root(0, 0), PCI_DEVICE_ID); + bridge_revision_id = (bridge_id & 0xf0) | stepping; } return bridge_revision_id; } @@ -66,18 +64,19 @@ static int get_pcie_bar(u32 *base) pciexbar_reg = pci_read_config32(dev, PCIEXBAR); + /* MMCFG not supported or not enabled */ if (!(pciexbar_reg & (1 << 0))) return 0; switch ((pciexbar_reg >> 1) & 3) { - case 0: // 256MB - *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)); + case 0: /* 256MB */ + *base = pciexbar_reg & (0xffffffffULL << 28); return 256; - case 1: // 128M - *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)); + case 1: /* 128M */ + *base = pciexbar_reg & (0xffffffffULL << 27); return 128; - case 2: // 64M - *base = pciexbar_reg & ((1 << 31)|(1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)|(1 << 26)); + case 2: /* 64M */ + *base = pciexbar_reg & (0xffffffffULL << 26); return 64; } @@ -88,15 +87,14 @@ static void add_fixed_resources(struct device *dev, int index) { mmio_resource(dev, index++, uma_memory_base >> 10, uma_memory_size >> 10); - mmio_resource(dev, index++, legacy_hole_base_k, - (0xc0000 >> 10) - legacy_hole_base_k); - reserved_ram_resource(dev, index++, 0xc0000 >> 10, - (0x100000 - 0xc0000) >> 10); + mmio_resource(dev, index++, legacy_hole_base_k, (0xc0000 >> 10) - legacy_hole_base_k); + + reserved_ram_resource(dev, index++, 0xc0000 >> 10, (0x100000 - 0xc0000) >> 10); #if CONFIG(CHROMEOS_RAMOOPS) reserved_ram_resource(dev, index++, CONFIG_CHROMEOS_RAMOOPS_RAM_START >> 10, - CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE >> 10); + CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE >> 10); #endif if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) { @@ -106,10 +104,10 @@ static void add_fixed_resources(struct device *dev, int index) } /* Reserve IOMMU BARs */ - const u32 capid0_a = pci_read_config32(dev, 0xe4); + const u32 capid0_a = pci_read_config32(dev, CAPID0_A); if (!(capid0_a & (1 << 23))) { - mmio_resource(dev, index++, IOMMU_BASE1 >> 10, 4); - mmio_resource(dev, index++, IOMMU_BASE2 >> 10, 4); + mmio_resource(dev, index++, GFXVT_BASE >> 10, 4); + mmio_resource(dev, index++, VTVC0_BASE >> 10, 4); } } @@ -149,7 +147,7 @@ static void pci_domain_set_resources(struct device *dev) struct device *mch = pcidev_on_root(0, 0); /* Top of Upper Usable DRAM, including remap */ - touud = pci_read_config32(mch, TOUUD+4); + touud = pci_read_config32(mch, TOUUD + 4); touud <<= 32; touud |= pci_read_config32(mch, TOUUD); @@ -157,17 +155,17 @@ static void pci_domain_set_resources(struct device *dev) tolud = pci_read_config32(mch, TOLUD); /* Top of Memory - does not account for any UMA */ - tom = pci_read_config32(mch, 0xa4); + tom = pci_read_config32(mch, TOM + 4); tom <<= 32; - tom |= pci_read_config32(mch, 0xa0); + tom |= pci_read_config32(mch, TOM); printk(BIOS_DEBUG, "TOUUD 0x%llx TOLUD 0x%08x TOM 0x%llx\n", touud, tolud, tom); - /* ME UMA needs excluding if total memory <4GB */ - me_base = pci_read_config32(mch, 0x74); + /* ME UMA needs excluding if total memory < 4GB */ + me_base = pci_read_config32(mch, MESEG_BASE + 4); me_base <<= 32; - me_base |= pci_read_config32(mch, 0x70); + me_base |= pci_read_config32(mch, MESEG_BASE); printk(BIOS_DEBUG, "MEBASE 0x%llx\n", me_base); @@ -206,30 +204,28 @@ static void pci_domain_set_resources(struct device *dev) } /* Calculate TSEG size from its base which must be below GTT */ - tseg_base = pci_read_config32(mch, 0xb8); + tseg_base = pci_read_config32(mch, TSEGMB); uma_size = (uma_memory_base - tseg_base) >> 10; tomk -= uma_size; uma_memory_base = tomk * 1024ULL; uma_memory_size += uma_size * 1024ULL; - printk(BIOS_DEBUG, "TSEG base 0x%08x size %uM\n", - tseg_base, uma_size >> 10); + printk(BIOS_DEBUG, "TSEG base 0x%08x size %uM\n", tseg_base, uma_size >> 10); printk(BIOS_INFO, "Available memory below 4GB: %lluM\n", tomk >> 10); /* Report the memory regions */ ram_resource(dev, 3, 0, legacy_hole_base_k); ram_resource(dev, 4, legacy_hole_base_k + legacy_hole_size_k, - (tomk - (legacy_hole_base_k + legacy_hole_size_k))); + (tomk - (legacy_hole_base_k + legacy_hole_size_k))); /* - * If >= 4GB installed then memory from TOLUD to 4GB - * is remapped above TOM, TOUUD will account for both + * If >= 4GB installed, then memory from TOLUD to 4GB is remapped above TOM. + * TOUUD will account for both memory chunks. */ touud >>= 10; /* Convert to KB */ if (touud > 4096 * 1024) { ram_resource(dev, 5, 4096 * 1024, touud - (4096 * 1024)); - printk(BIOS_INFO, "Available memory above 4GB: %lluM\n", - (touud >> 10) - 4096); + printk(BIOS_INFO, "Available memory above 4GB: %lluM\n", (touud >> 10) - 4096); } add_fixed_resources(dev, 6); @@ -253,17 +249,18 @@ static const char *northbridge_acpi_name(const struct device *dev) return NULL; } - /* TODO We could determine how many PCIe busses we need in - * the bar. For now that number is hardcoded to a max of 64. - */ +/* + * TODO We could determine how many PCIe busses we need in the bar. + * For now, that number is hardcoded to a max of 64. + */ static struct device_operations pci_domain_ops = { - .read_resources = pci_domain_read_resources, - .set_resources = pci_domain_set_resources, - .enable_resources = NULL, - .init = NULL, - .scan_bus = pci_domain_scan_bus, + .read_resources = pci_domain_read_resources, + .set_resources = pci_domain_set_resources, + .enable_resources = NULL, + .init = NULL, + .scan_bus = pci_domain_scan_bus, .write_acpi_tables = northbridge_write_acpi_tables, - .acpi_name = northbridge_acpi_name, + .acpi_name = northbridge_acpi_name, }; static void mc_read_resources(struct device *dev) @@ -291,7 +288,7 @@ static void northbridge_dmi_init(struct device *dev) /* Steps prior to DMI ASPM */ if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) { reg32 = DMIBAR32(0x250); - reg32 &= ~((1 << 22)|(1 << 20)); + reg32 &= ~((1 << 22) | (1 << 20)); reg32 |= (1 << 21); DMIBAR32(0x250) = reg32; } @@ -304,6 +301,7 @@ static void northbridge_dmi_init(struct device *dev) reg32 = DMIBAR32(0x1f8); reg32 |= (1 << 16); DMIBAR32(0x1f8) = reg32; + } else if (bridge_silicon_revision() >= SNB_STEP_D1) { reg32 = DMIBAR32(0x1f8); reg32 &= ~(1 << 26); @@ -374,10 +372,15 @@ static void disable_peg(void) dev = pcidev_on_root(0, 0); pci_write_config32(dev, DEVEN, reg); + if (!(reg & (DEVEN_PEG60 | DEVEN_PEG10 | DEVEN_PEG11 | DEVEN_PEG12))) { - /* Set the PEG clock gating bit. - * Disables the IO clock on all PEG devices. */ - MCHBAR32(0x7010) = MCHBAR32(0x7010) | 0x01; + /* + * Set the PEG clock gating bit. Disables the IO clock on all PEG devices. + * + * FIXME: If not clock gating, this register still needs to be written to once, + * to lock it down. Also, never clock gate on Ivy Bridge stepping A0! + */ + MCHBAR32_OR(PEGCTL, 1); printk(BIOS_DEBUG, "Disabling PEG IO clock.\n"); } } @@ -394,10 +397,10 @@ static void northbridge_init(struct device *dev) if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) { /* Enable Power Aware Interrupt Routing */ - u8 pair = MCHBAR8(PAIR_CTL); - pair &= ~0xf; /* Clear 3:0 */ - pair |= 0x4; /* Fixed Priority */ - MCHBAR8(PAIR_CTL) = pair; + u8 pair = MCHBAR8(INTRDIRCTL); + pair &= ~0x0f; /* Clear 3:0 */ + pair |= 0x04; /* Fixed Priority */ + MCHBAR8(INTRDIRCTL) = pair; /* 30h for IvyBridge */ bridge_type |= 0x30; @@ -407,9 +410,7 @@ static void northbridge_init(struct device *dev) } MCHBAR32(SAPMTIMERS) = bridge_type; - /* Turn off unused devices. Has to be done before - * setting BIOS_RESET_CPL. - */ + /* Turn off unused devices. Has to be done before setting BIOS_RESET_CPL. */ disable_peg(); /* @@ -426,17 +427,17 @@ static void northbridge_init(struct device *dev) set_power_limits(28); /* - * CPUs with configurable TDP also need power limits set - * in MCHBAR. Use same values from MSR_PKG_POWER_LIMIT. + * CPUs with configurable TDP also need power limits set in MCHBAR. + * Use the same values from MSR_PKG_POWER_LIMIT. */ if (cpu_config_tdp_levels()) { msr_t msr = rdmsr(MSR_PKG_POWER_LIMIT); - MCHBAR32(MC_TURBO_PL1) = msr.lo; - MCHBAR32(MC_TURBO_PL2) = msr.hi; + MCHBAR32(MCH_PKG_POWER_LIMIT_LO) = msr.lo; + MCHBAR32(MCH_PKG_POWER_LIMIT_HI) = msr.hi; } /* Set here before graphics PM init */ - MCHBAR32(MMIO_PAVP_CTL) = 0x00100001; + MCHBAR32(PAVP_MSG) = 0x00100001; } void northbridge_write_smram(u8 smram) @@ -445,16 +446,16 @@ void northbridge_write_smram(u8 smram) } static struct pci_operations intel_pci_ops = { - .set_subsystem = pci_dev_set_subsystem, + .set_subsystem = pci_dev_set_subsystem, }; static struct device_operations mc_ops = { - .read_resources = mc_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = northbridge_init, - .scan_bus = 0, - .ops_pci = &intel_pci_ops, + .read_resources = mc_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = northbridge_init, + .scan_bus = NULL, + .ops_pci = &intel_pci_ops, .acpi_fill_ssdt_generator = generate_cpu_entries, }; @@ -465,8 +466,8 @@ static const unsigned short pci_device_ids[] = { }; static const struct pci_driver mc_driver __pci_driver = { - .ops = &mc_ops, - .vendor = PCI_VENDOR_ID_INTEL, + .ops = &mc_ops, + .vendor = PCI_VENDOR_ID_INTEL, .devices = pci_device_ids, }; diff --git a/src/northbridge/intel/sandybridge/pcie.c b/src/northbridge/intel/sandybridge/pcie.c index 258ade2de8..05f05ecc1d 100644 --- a/src/northbridge/intel/sandybridge/pcie.c +++ b/src/northbridge/intel/sandybridge/pcie.c @@ -54,9 +54,9 @@ static const char *pcie_acpi_name(const struct device *dev) if (dev->path.pci.devfn == PCI_DEVFN(0, 0) && port->bus->secondary == 0 && (port->path.pci.devfn == PCI_DEVFN(1, 0) || - port->path.pci.devfn == PCI_DEVFN(1, 1) || - port->path.pci.devfn == PCI_DEVFN(1, 2) || - port->path.pci.devfn == PCI_DEVFN(6, 0))) + port->path.pci.devfn == PCI_DEVFN(1, 1) || + port->path.pci.devfn == PCI_DEVFN(1, 2) || + port->path.pci.devfn == PCI_DEVFN(6, 0))) return "DEV0"; return NULL; @@ -81,9 +81,11 @@ static struct device_operations device_ops = { #endif }; -static const unsigned short pci_device_ids[] = { 0x0101, 0x0105, 0x0109, 0x010d, - 0x0151, 0x0155, 0x0159, 0x015d, - 0 }; +static const unsigned short pci_device_ids[] = { + 0x0101, 0x0105, 0x0109, 0x010d, + 0x0151, 0x0155, 0x0159, 0x015d, + 0, +}; static const struct pci_driver pch_pcie __pci_driver = { .ops = &device_ops, diff --git a/src/northbridge/intel/sandybridge/pei_data.h b/src/northbridge/intel/sandybridge/pei_data.h index 8e98becbe3..8114bcc153 100644 --- a/src/northbridge/intel/sandybridge/pei_data.h +++ b/src/northbridge/intel/sandybridge/pei_data.h @@ -33,10 +33,10 @@ #include <stdint.h> typedef struct { - uint16_t mode; // 0: Disable, 1: Enable, 2: Auto, 3: Smart Auto - uint16_t hs_port_switch_mask; // 4 bit mask, 1: switchable, 0: not switchable - uint16_t preboot_support; // 0: No xHCI preOS driver, 1: xHCI preOS driver - uint16_t xhci_streams; // 0: Disable, 1: Enable + uint16_t mode; /* 0: Disable, 1: Enable, 2: Auto, 3: Smart Auto */ + uint16_t hs_port_switch_mask; /* 4 bit mask, 1: switchable, 0: not switchable */ + uint16_t preboot_support; /* 0: No xHCI preOS driver, 1: xHCI preOS driver */ + uint16_t xhci_streams; /* 0: Disable, 1: Enable */ } pch_usb3_controller_settings; typedef void (*tx_byte_func)(unsigned char byte); @@ -57,17 +57,19 @@ struct pei_data uint32_t pmbase; uint32_t gpiobase; uint32_t thermalbase; - uint32_t system_type; // 0 Mobile, 1 Desktop/Server + uint32_t system_type; /* 0 Mobile, 1 Desktop/Server */ uint32_t tseg_size; uint8_t spd_addresses[4]; uint8_t ts_addresses[4]; int boot_mode; int ec_present; int gbe_enable; - // 0 = leave channel enabled - // 1 = disable dimm 0 on channel - // 2 = disable dimm 1 on channel - // 3 = disable dimm 0+1 on channel + /* + * 0 = leave channel enabled + * 1 = disable dimm 0 on channel + * 2 = disable dimm 1 on channel + * 3 = disable dimm 0+1 on channel + */ int dimm_channel0_disabled; int dimm_channel1_disabled; /* Seed values saved in CMOS */ @@ -90,46 +92,50 @@ struct pei_data * [1] = overcurrent pin * [2] = length * - * Ports 0-7 can be mapped to OC0-OC3 + * Ports 0-7 can be mapped to OC0-OC3 * Ports 8-13 can be mapped to OC4-OC7 * * Port Length * MOBILE: - * < 0x050 = Setting 1 (back panel, 1-5in, lowest tx amplitude) - * < 0x140 = Setting 2 (back panel, 5-14in, highest tx amplitude) + * < 0x050 = Setting 1 (back panel, 1 to 5 in, lowest tx amplitude) + * < 0x140 = Setting 2 (back panel, 5 to 14 in, highest tx amplitude) * DESKTOP: - * < 0x080 = Setting 1 (front/back panel, <8in, lowest tx amplitude) - * < 0x130 = Setting 2 (back panel, 8-13in, higher tx amplitude) - * < 0x150 = Setting 3 (back panel, 13-15in, highest tx amplitude) + * < 0x080 = Setting 1 (front/back panel, less than 8 in, lowest tx amplitude) + * < 0x130 = Setting 2 (back panel, 8 to 13 in, higher tx amplitude) + * < 0x150 = Setting 3 (back panel, 13 to 15 in, highest tx amplitude) */ uint16_t usb_port_config[16][3]; /* See the usb3 struct above for details */ pch_usb3_controller_settings usb3; - /* SPD data array for onboard RAM. - * spd_data [1..3] are ignored, instead the "dimm_channel{0,1}_disabled" - * flag and the spd_addresses are used to determine which DIMMs should - * use the SPD from spd_data[0]. + /* + * SPD data array for onboard RAM. Note that spd_data [1..3] are ignored: instead, + * the "dimm_channel{0,1}_disabled" flag and the spd_addresses are used to determine + * which DIMMs should use the SPD from spd_data[0]. */ uint8_t spd_data[4][256]; tx_byte_func tx_byte; int ddr3lv_support; - /* pcie_init needs to be set to 1 to have the system agent initialize - * PCIe. Note: This should only be required if your system has Gen3 devices - * and it will increase your boot time by at least 100ms. + /* + * pcie_init needs to be set to 1 to have the system agent initialize PCIe. + * Note: This should only be required if your system has Gen3 devices and + * it will increase your boot time by at least 100ms. */ int pcie_init; - /* N mode functionality. Leave this setting at 0. - * 0 Auto - * 1 1N - * 2 2N + /* + * N mode functionality. Leave this setting at 0. + * + * 0: Auto + * 1: 1N + * 2: 2N */ int nmode; - /* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows - * for DIMM SPD data to specify whether double-rate is required for - * extended operating temperature range. - * 0 Enable double rate based upon temperature thresholds - * 1 Normal rate - * 2 Always enable double rate + /* + * DDR refresh rate config. JEDEC Standard No.21-C Annex K allows for DIMM SPD data to + * specify whether double-rate is required for extended operating temperature range. + * + * 0: Enable double rate based upon temperature thresholds + * 1: Normal rate + * 2: Always enable double rate */ int ddr_refresh_rate_config; } __packed; diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c index 60217b4070..ca78eb3a64 100644 --- a/src/northbridge/intel/sandybridge/raminit.c +++ b/src/northbridge/intel/sandybridge/raminit.c @@ -35,47 +35,48 @@ #define MRC_CACHE_VERSION 1 -/* FIXME: no ECC support. */ -/* FIXME: no support for 3-channel chipsets. */ +/* FIXME: no ECC support */ +/* FIXME: no support for 3-channel chipsets */ static const char *ecc_decoder[] = { "inactive", "active on IO", "disabled on IO", - "active" + "active", }; static void wait_txt_clear(void) { - struct cpuid_result cp; + struct cpuid_result cp = cpuid_ext(1, 0); - cp = cpuid_ext(0x1, 0x0); - /* Check if TXT is supported? */ - if (!(cp.ecx & 0x40)) + /* Check if TXT is supported */ + if (!(cp.ecx & (1 << 6))) return; - /* Some TXT public bit. */ + + /* Some TXT public bit */ if (!(read32((void *)0xfed30010) & 1)) return; - /* Wait for TXT clear. */ - while (!(read8((void *)0xfed40000) & (1 << 7))); + + /* Wait for TXT clear */ + while (!(read8((void *)0xfed40000) & (1 << 7))) + ; } -/* - * Disable a channel in ramctr_timing. - */ -static void disable_channel(ramctr_timing *ctrl, int channel) { +/* Disable a channel in ramctr_timing */ +static void disable_channel(ramctr_timing *ctrl, int channel) +{ ctrl->rankmap[channel] = 0; + memset(&ctrl->rank_mirror[channel][0], 0, sizeof(ctrl->rank_mirror[0])); + ctrl->channel_size_mb[channel] = 0; - ctrl->cmd_stretch[channel] = 0; - ctrl->mad_dimm[channel] = 0; - memset(&ctrl->timings[channel][0], 0, sizeof(ctrl->timings[0])); + ctrl->cmd_stretch[channel] = 0; + ctrl->mad_dimm[channel] = 0; + memset(&ctrl->timings[channel][0], 0, sizeof(ctrl->timings[0])); memset(&ctrl->info.dimm[channel][0], 0, sizeof(ctrl->info.dimm[0])); } -/* - * Fill cbmem with information for SMBIOS type 17. - */ +/* Fill cbmem with information for SMBIOS type 17 */ static void fill_smbios17(ramctr_timing *ctrl) { int channel, slot; @@ -89,54 +90,50 @@ static void fill_smbios17(ramctr_timing *ctrl) } } -/* - * Dump in the log memory controller configuration as read from the memory - * controller registers. - */ +#define ON_OFF(val) (((val) & 1) ? "on" : "off") + +/* Print the memory controller configuration as read from the memory controller registers. */ static void report_memory_config(void) { u32 addr_decoder_common, addr_decode_ch[NUM_CHANNELS]; - int i, refclk; + int i; addr_decoder_common = MCHBAR32(MAD_CHNL); - addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0); - addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1); + addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0); + addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1); - refclk = MCHBAR32(MC_BIOS_REQ) & 0x100 ? 100 : 133; + const int refclk = MCHBAR32(MC_BIOS_REQ) & 0x100 ? 100 : 133; printk(BIOS_DEBUG, "memcfg DDR3 ref clock %d MHz\n", refclk); printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n", (MCHBAR32(MC_BIOS_DATA) * refclk * 100 * 2 + 50) / 100); + printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n", - addr_decoder_common & 3, (addr_decoder_common >> 2) & 3, + (addr_decoder_common >> 0) & 3, + (addr_decoder_common >> 2) & 3, (addr_decoder_common >> 4) & 3); for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) { u32 ch_conf = addr_decode_ch[i]; - printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", i, - ch_conf); - printk(BIOS_DEBUG, " ECC %s\n", - ecc_decoder[(ch_conf >> 24) & 3]); - printk(BIOS_DEBUG, " enhanced interleave mode %s\n", - ((ch_conf >> 22) & 1) ? "on" : "off"); - printk(BIOS_DEBUG, " rank interleave %s\n", - ((ch_conf >> 21) & 1) ? "on" : "off"); + printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", i, ch_conf); + printk(BIOS_DEBUG, " ECC %s\n", ecc_decoder[(ch_conf >> 24) & 3]); + printk(BIOS_DEBUG, " enhanced interleave mode %s\n", ON_OFF(ch_conf >> 22)); + printk(BIOS_DEBUG, " rank interleave %s\n", ON_OFF(ch_conf >> 21)); printk(BIOS_DEBUG, " DIMMA %d MB width x%d %s rank%s\n", - ((ch_conf >> 0) & 0xff) * 256, + ((ch_conf >> 0) & 0xff) * 256, ((ch_conf >> 19) & 1) ? 16 : 8, ((ch_conf >> 17) & 1) ? "dual" : "single", ((ch_conf >> 16) & 1) ? "" : ", selected"); printk(BIOS_DEBUG, " DIMMB %d MB width x%d %s rank%s\n", - ((ch_conf >> 8) & 0xff) * 256, + ((ch_conf >> 8) & 0xff) * 256, ((ch_conf >> 20) & 1) ? 16 : 8, ((ch_conf >> 18) & 1) ? "dual" : "single", ((ch_conf >> 16) & 1) ? ", selected" : ""); } } +#undef ON_OFF -/* - * Return CRC16 match for all SPDs. - */ +/* Return CRC16 match for all SPDs */ static int verify_crc16_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) { int channel, slot, spd_slot; @@ -146,7 +143,7 @@ static int verify_crc16_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) for (slot = 0; slot < NUM_SLOTS; slot++) { spd_slot = 2 * channel + slot; match &= ctrl->spd_crc[channel][slot] == - spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data)); + spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data)); } } return match; @@ -166,7 +163,7 @@ void read_spd(spd_raw_data * spd, u8 addr, bool id_only) static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) { - int dimms = 0, dimms_on_channel; + int dimms = 0, ch_dimms; int channel, slot, spd_slot; dimm_info *dimm = &ctrl->info; @@ -178,53 +175,55 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) FOR_ALL_CHANNELS { ctrl->channel_size_mb[channel] = 0; - dimms_on_channel = 0; - /* count dimms on channel */ + ch_dimms = 0; + /* Count dimms on channel */ for (slot = 0; slot < NUM_SLOTS; slot++) { spd_slot = 2 * channel + slot; - printk(BIOS_DEBUG, - "SPD probe channel%d, slot%d\n", channel, slot); + printk(BIOS_DEBUG, "SPD probe channel%d, slot%d\n", channel, slot); spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]); if (dimm->dimm[channel][slot].dram_type == SPD_MEMORY_TYPE_SDRAM_DDR3) - dimms_on_channel++; + ch_dimms++; } for (slot = 0; slot < NUM_SLOTS; slot++) { spd_slot = 2 * channel + slot; - printk(BIOS_DEBUG, - "SPD probe channel%d, slot%d\n", channel, slot); + printk(BIOS_DEBUG, "SPD probe channel%d, slot%d\n", channel, slot); - /* search for XMP profile */ - spd_xmp_decode_ddr3(&dimm->dimm[channel][slot], - spd[spd_slot], + /* Search for XMP profile */ + spd_xmp_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot], DDR3_XMP_PROFILE_1); if (dimm->dimm[channel][slot].dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3) { printram("No valid XMP profile found.\n"); spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]); - } else if (dimms_on_channel > dimm->dimm[channel][slot].dimms_per_channel) { - printram("XMP profile supports %u DIMMs, but %u DIMMs are installed.\n", - dimm->dimm[channel][slot].dimms_per_channel, - dimms_on_channel); + + } else if (ch_dimms > dimm->dimm[channel][slot].dimms_per_channel) { + printram( + "XMP profile supports %u DIMMs, but %u DIMMs are installed.\n", + dimm->dimm[channel][slot].dimms_per_channel, ch_dimms); + if (CONFIG(NATIVE_RAMINIT_IGNORE_XMP_MAX_DIMMS)) - printk(BIOS_WARNING, "XMP maximum DIMMs will be ignored.\n"); + printk(BIOS_WARNING, + "XMP maximum DIMMs will be ignored.\n"); else - spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]); + spd_decode_ddr3(&dimm->dimm[channel][slot], + spd[spd_slot]); + } else if (dimm->dimm[channel][slot].voltage != 1500) { - /* TODO: support other DDR3 voltage than 1500mV */ + /* TODO: Support DDR3 voltages other than 1500mV */ printram("XMP profile's requested %u mV is unsupported.\n", dimm->dimm[channel][slot].voltage); spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]); } - /* fill in CRC16 for MRC cache */ + /* Fill in CRC16 for MRC cache */ ctrl->spd_crc[channel][slot] = - spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data)); + spd_ddr3_calc_unique_crc(spd[spd_slot], sizeof(spd_raw_data)); if (dimm->dimm[channel][slot].dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3) { - // set dimm invalid - dimm->dimm[channel][slot].ranks = 0; + /* Mark DIMM as invalid */ + dimm->dimm[channel][slot].ranks = 0; dimm->dimm[channel][slot].size_mb = 0; continue; } @@ -232,30 +231,40 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) dram_print_spd_ddr3(&dimm->dimm[channel][slot]); dimms++; ctrl->rank_mirror[channel][slot * 2] = 0; - ctrl->rank_mirror[channel][slot * 2 + 1] = dimm->dimm[channel][slot].flags.pins_mirrored; + ctrl->rank_mirror[channel][slot * 2 + 1] = + dimm->dimm[channel][slot].flags.pins_mirrored; + ctrl->channel_size_mb[channel] += dimm->dimm[channel][slot].size_mb; ctrl->auto_self_refresh &= dimm->dimm[channel][slot].flags.asr; - ctrl->extended_temperature_range &= dimm->dimm[channel][slot].flags.ext_temp_refresh; - ctrl->rankmap[channel] |= ((1 << dimm->dimm[channel][slot].ranks) - 1) << (2 * slot); - printk(BIOS_DEBUG, "channel[%d] rankmap = 0x%x\n", - channel, ctrl->rankmap[channel]); + ctrl->extended_temperature_range &= + dimm->dimm[channel][slot].flags.ext_temp_refresh; + + ctrl->rankmap[channel] |= + ((1 << dimm->dimm[channel][slot].ranks) - 1) << (2 * slot); + + printk(BIOS_DEBUG, "channel[%d] rankmap = 0x%x\n", channel, + ctrl->rankmap[channel]); } - if ((ctrl->rankmap[channel] & 3) && (ctrl->rankmap[channel] & 0xc) - && dimm->dimm[channel][0].reference_card <= 5 && dimm->dimm[channel][1].reference_card <= 5) { + if ((ctrl->rankmap[channel] & 0x03) && (ctrl->rankmap[channel] & 0x0c) + && dimm->dimm[channel][0].reference_card <= 5 + && dimm->dimm[channel][1].reference_card <= 5) { + const int ref_card_offset_table[6][6] = { - { 0, 0, 0, 0, 2, 2, }, - { 0, 0, 0, 0, 2, 2, }, - { 0, 0, 0, 0, 2, 2, }, - { 0, 0, 0, 0, 1, 1, }, - { 2, 2, 2, 1, 0, 0, }, - { 2, 2, 2, 1, 0, 0, }, + { 0, 0, 0, 0, 2, 2 }, + { 0, 0, 0, 0, 2, 2 }, + { 0, 0, 0, 0, 2, 2 }, + { 0, 0, 0, 0, 1, 1 }, + { 2, 2, 2, 1, 0, 0 }, + { 2, 2, 2, 1, 0, 0 }, }; - ctrl->ref_card_offset[channel] = ref_card_offset_table[dimm->dimm[channel][0].reference_card] - [dimm->dimm[channel][1].reference_card]; - } else + ctrl->ref_card_offset[channel] = ref_card_offset_table + [dimm->dimm[channel][0].reference_card] + [dimm->dimm[channel][1].reference_card]; + } else { ctrl->ref_card_offset[channel] = 0; + } } if (!dimms) @@ -265,29 +274,24 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) static void save_timings(ramctr_timing *ctrl) { /* Save the MRC S3 restore data to cbmem */ - mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, ctrl, - sizeof(*ctrl)); + mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, ctrl, sizeof(*ctrl)); } -static int try_init_dram_ddr3(ramctr_timing *ctrl, int fast_boot, - int s3_resume, int me_uma_size) +static int try_init_dram_ddr3(ramctr_timing *ctrl, int fast_boot, int s3resume, int me_uma_size) { if (ctrl->sandybridge) - return try_init_dram_ddr3_sandy(ctrl, fast_boot, s3_resume, me_uma_size); + return try_init_dram_ddr3_snb(ctrl, fast_boot, s3resume, me_uma_size); else - return try_init_dram_ddr3_ivy(ctrl, fast_boot, s3_resume, me_uma_size); + return try_init_dram_ddr3_ivb(ctrl, fast_boot, s3resume, me_uma_size); } static void init_dram_ddr3(int min_tck, int s3resume) { - int me_uma_size; - int cbmem_was_inited; + int me_uma_size, cbmem_was_inited, fast_boot, err; ramctr_timing ctrl; - int fast_boot; spd_raw_data spds[4]; struct region_device rdev; ramctr_timing *ctrl_cached; - int err; u32 cpu; MCHBAR32(SAPMCTL) |= 1; @@ -298,17 +302,14 @@ static void init_dram_ddr3(int min_tck, int s3resume) printk(BIOS_DEBUG, "Starting native Platform init\n"); - u32 reg_5d10; - wait_txt_clear(); wrmsr(0x000002e6, (msr_t) { .lo = 0, .hi = 0 }); - reg_5d10 = MCHBAR32(0x5d10); // !!! = 0x00000000 - if ((pci_read_config16(SOUTHBRIDGE, 0xa2) & 0xa0) == 0x20 /* 0x0004 */ - && reg_5d10 && !s3resume) { - MCHBAR32(0x5d10) = 0; - /* Need reset. */ + const u32 sskpd = MCHBAR32(SSKPD); // !!! = 0x00000000 + if ((pci_read_config16(SOUTHBRIDGE, 0xa2) & 0xa0) == 0x20 && sskpd && !s3resume) { + MCHBAR32(SSKPD) = 0; + /* Need reset */ system_reset(); } @@ -316,10 +317,9 @@ static void init_dram_ddr3(int min_tck, int s3resume) early_init_dmi(); early_thermal_init(); - /* try to find timings in MRC cache */ - int cache_not_found = mrc_cache_get_current(MRC_TRAINING_DATA, - MRC_CACHE_VERSION, &rdev); - if (cache_not_found || (region_device_sz(&rdev) < sizeof(ctrl))) { + /* Try to find timings in MRC cache */ + err = mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION, &rdev); + if (err || (region_device_sz(&rdev) < sizeof(ctrl))) { if (s3resume) { /* Failed S3 resume, reset to come up cleanly */ system_reset(); @@ -329,7 +329,7 @@ static void init_dram_ddr3(int min_tck, int s3resume) ctrl_cached = rdev_mmap_full(&rdev); } - /* verify MRC cache for fast boot */ + /* Verify MRC cache for fast boot */ if (!s3resume && ctrl_cached) { /* Load SPD unique information data. */ memset(spds, 0, sizeof(spds)); @@ -353,8 +353,8 @@ static void init_dram_ddr3(int min_tck, int s3resume) /* Failed S3 resume, reset to come up cleanly */ system_reset(); } - /* no need to erase bad mrc cache here, it gets overwritten on - * successful boot. */ + /* No need to erase bad MRC cache here, it gets overwritten on a + successful boot */ printk(BIOS_ERR, "Stored timings are invalid !\n"); fast_boot = 0; } @@ -377,7 +377,7 @@ static void init_dram_ddr3(int min_tck, int s3resume) } if (err) { - /* fallback: disable failing channel */ + /* Fallback: disable failing channel */ printk(BIOS_ERR, "RAM training failed, trying fallback.\n"); printram("Disable failing channel.\n"); @@ -392,7 +392,7 @@ static void init_dram_ddr3(int min_tck, int s3resume) /* Reset DDR3 frequency */ dram_find_spds_ddr3(spds, &ctrl); - /* disable failing channel */ + /* Disable failing channel */ disable_channel(&ctrl, GET_ERR_CHANNEL(err)); err = try_init_dram_ddr3(&ctrl, fast_boot, s3resume, me_uma_size); diff --git a/src/northbridge/intel/sandybridge/raminit.h b/src/northbridge/intel/sandybridge/raminit.h index 1939c83095..6febfa3f61 100644 --- a/src/northbridge/intel/sandybridge/raminit.h +++ b/src/northbridge/intel/sandybridge/raminit.h @@ -29,4 +29,4 @@ void save_mrc_data(struct pei_data *pei_data); void mainboard_fill_pei_data(struct pei_data *pei_data); int fixup_sandybridge_errata(void); -#endif /* RAMINIT_H */ +#endif /* RAMINIT_H */ diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c index 3c3546a65e..2cb6a8337b 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.c +++ b/src/northbridge/intel/sandybridge/raminit_common.c @@ -26,163 +26,8 @@ #include "raminit_common.h" #include "sandybridge.h" -/* FIXME: no ECC support. */ -/* FIXME: no support for 3-channel chipsets. */ - -/* - * ### IOSAV command queue notes ### - * - * Intel provides a command queue of depth four. - * Every command is configured by using multiple MCHBAR registers. - * On executing the command queue, you have to specify its depth (number of commands). - * - * The macros for these registers can take some integer parameters, within these bounds: - * channel: [0..1] - * index: [0..3] - * lane: [0..8] - * - * Note that these ranges are 'closed': both endpoints are included. - * - * - * - * ### Register description ### - * - * IOSAV_n_SP_CMD_ADDR_ch(channel, index) - * Sub-sequence command addresses. Controls the address, bank address and slotrank signals. - * - * Bitfields: - * [0..15] Row / Column Address. - * [16..18] The result of (10 + [16..18]) is the number of valid row bits. - * Note: Value 1 is not implemented. Not that it really matters, though. - * Value 7 is reserved, as the hardware does not support it. - * [20..22] Bank Address. - * [24..25] Rank select. Let's call it "ranksel", as it is mentioned later. - * - * IOSAV_n_ADDR_UPD_ch(channel, index) - * How the address shall be updated after executing the sub-sequence command. - * - * Bitfields: - * [0] Increment CAS/RAS by 1. - * [1] Increment CAS/RAS by 8. - * [2] Increment bank select by 1. - * [3..4] Increment rank select by 1, 2 or 3. - * [5..9] Known as "addr_wrap". Address bits will wrap around the [addr_wrap..0] range. - * [10..11] LFSR update: - * 00: Do not use the LFSR function. - * 01: Undefined, treat as Reserved. - * 10: Apply LFSR on the [addr_wrap..0] bit range. - * 11: Apply LFSR on the [addr_wrap..3] bit range. - * - * [12..15] Update rate. The number of command runs between address updates. For example: - * 0: Update every command run. - * 1: Update every second command run. That is, half of the command rate. - * N: Update after N command runs without updates. - * - * [16..17] LFSR behavior on the deselect cycles (when no sub-seq command is issued): - * 0: No change w.r.t. the last issued command. - * 1: LFSR XORs with address & command (excluding CS), but does not update. - * 2: LFSR XORs with address & command (excluding CS), and updates. - * - * IOSAV_n_SP_CMD_CTL_ch(channel, index) - * Special command control register. Controls the DRAM command signals. - * - * Bitfields: - * [0] !RAS signal. - * [1] !CAS signal. - * [2] !WE signal. - * [4..7] CKE, per rank and channel. - * [8..11] ODT, per rank and channel. - * [12] Chip Select mode control. - * [13..16] Chip select, per rank and channel. It works as follows: - * - * entity CS_BLOCK is - * port ( - * MODE : in std_logic; -- Mode select at [12] - * RANKSEL : in std_logic_vector(0 to 3); -- Decoded "ranksel" value - * CS_CTL : in std_logic_vector(0 to 3); -- Chip select control at [13..16] - * CS_Q : out std_logic_vector(0 to 3) -- CS signals - * ); - * end entity CS_BLOCK; - * - * architecture RTL of CS_BLOCK is - * begin - * if MODE = '1' then - * CS_Q <= not RANKSEL and CS_CTL; - * else - * CS_Q <= CS_CTL; - * end if; - * end architecture RTL; - * - * [17] Auto Precharge. Only valid when using 10 row bits! - * - * IOSAV_n_SUBSEQ_CTL_ch(channel, index) - * Sub-sequence parameters. Controls repetititons, delays and data orientation. - * - * Bitfields: - * [0..8] Number of repetitions of the sub-sequence command. - * [10..14] Gap, number of clock-cycles to wait before sending the next command. - * [16..24] Number of clock-cycles to idle between sub-sequence commands. - * [26..27] The direction of the data. - * 00: None, does not handle data - * 01: Read - * 10: Write - * 11: Read & Write - * - * IOSAV_n_ADDRESS_LFSR_ch(channel, index) - * 23-bit LFSR state register. It is written into the LFSR when the sub-sequence is loaded, - * and then read back from the LFSR when the sub-sequence is done. - * - * Bitfields: - * [0..22] LFSR state. - * - * IOSAV_SEQ_CTL_ch(channel) - * Control the sequence level in IOSAV: number of sub-sequences, iterations, maintenance... - * - * Bitfields: - * [0..7] Number of full sequence executions. When this field becomes non-zero, then the - * sequence starts running immediately. This value is decremented after completing - * a full sequence iteration. When it is zero, the sequence is done. No decrement - * is done if this field is set to 0xff. This is the "infinite repeat" mode, and - * it is manually aborted by clearing this field. - * - * [8..16] Number of wait cycles after each sequence iteration. This wait's purpose is to - * allow performing maintenance in infinite loops. When non-zero, RCOMP, refresh - * and ZQXS operations can take place. - * - * [17] Stop-on-error mode: Whether to stop sequence execution when an error occurs. - * [18..19] Number of sub-sequences. The programmed value is the index of the last sub-seq. - * [20] If set, keep refresh disabled until the next sequence execution. - * DANGER: Refresh must be re-enabled within the (9 * tREFI) period! - * - * [22] If set, sequence execution will not prevent refresh. This cannot be set when - * bit [20] is also set, or was set on the previous sequence. This bit exists so - * that the sequence machine can be used as a timer without affecting the memory. - * - * [23] If set, a output pin is asserted on the first detected error. This output can - * be used as a trigger for an oscilloscope or a logic analyzer, which is handy. - * - * IOSAV_DATA_CTL_ch(channel) - * Data-related controls in IOSAV mode. - * - * Bitfields: - * [0..7] WDB (Write Data Buffer) pattern length: [0..7] = (length / 8) - 1; - * [8..15] WDB read pointer. Points at the data used for IOSAV write transactions. - * [16..23] Comparison pointer. Used to compare data from IOSAV read transactions. - * [24] If set, increment pointers only when micro-breakpoint is active. - * - * IOSAV_STATUS_ch(channel) - * State of the IOSAV sequence machine. Should be polled after sending an IOSAV sequence. - * - * Bitfields: - * [0] IDLE: IOSAV is sleeping. - * [1] BUSY: IOSAV is running a sequence. - * [2] DONE: IOSAV has completed a sequence. - * [3] ERROR: IOSAV detected an error and stopped on it, when using Stop-on-error. - * [4] PANIC: The refresh machine issued a Panic Refresh, and IOSAV was aborted. - * [5] RCOMP: RComp failure. Unused, consider Reserved. - * [6] Cleared with a new sequence, and set when done and refresh counter is drained. - * - */ +/* FIXME: no ECC support */ +/* FIXME: no support for 3-channel chipsets */ /* length: [1..4] */ #define IOSAV_RUN_ONCE(length) ((((length) - 1) << 18) | 1) @@ -192,10 +37,11 @@ static void sfence(void) asm volatile ("sfence"); } -static void toggle_io_reset(void) { - /* toggle IO reset bit */ +/* Toggle IO reset bit */ +static void toggle_io_reset(void) +{ u32 r32 = MCHBAR32(MC_INIT_STATE_G); - MCHBAR32(MC_INIT_STATE_G) = r32 | 0x20; + MCHBAR32(MC_INIT_STATE_G) = r32 | 0x20; udelay(1); MCHBAR32(MC_INIT_STATE_G) = r32 & ~0x20; udelay(1); @@ -210,43 +56,49 @@ static u32 get_XOVER_CMD(u8 rankmap) { u32 reg; - // enable xover cmd + /* Enable xover cmd */ reg = 0x4000; - // enable xover ctl - if (rankmap & 0x3) - reg |= 0x20000; + /* Enable xover ctl */ + if (rankmap & 0x03) + reg |= (1 << 17); - if (rankmap & 0xc) - reg |= 0x4000000; + if (rankmap & 0x0c) + reg |= (1 << 26); return reg; } -/* CAS write latency. To be programmed in MR2. - * See DDR3 SPEC for MR2 documentation. */ +/* CAS write latency. To be programmed in MR2. See DDR3 SPEC for MR2 documentation. */ u8 get_CWL(u32 tCK) { - /* Get CWL based on tCK using the following rule: */ + /* Get CWL based on tCK using the following rule */ switch (tCK) { case TCK_1333MHZ: return 12; + case TCK_1200MHZ: case TCK_1100MHZ: return 11; + case TCK_1066MHZ: case TCK_1000MHZ: return 10; + case TCK_933MHZ: case TCK_900MHZ: return 9; + case TCK_800MHZ: case TCK_700MHZ: return 8; + case TCK_666MHZ: return 7; + case TCK_533MHZ: return 6; + default: return 5; } @@ -260,22 +112,25 @@ void dram_find_common_params(ramctr_timing *ctrl) ctrl->cas_supported = (1 << (MAX_CAS - MIN_CAS + 1)) - 1; valid_dimms = 0; + FOR_ALL_CHANNELS for (slot = 0; slot < 2; slot++) { + const dimm_attr *dimm = &dimms->dimm[channel][slot]; if (dimm->dram_type != SPD_MEMORY_TYPE_SDRAM_DDR3) continue; + valid_dimms++; /* Find all possible CAS combinations */ ctrl->cas_supported &= dimm->cas_supported; /* Find the smallest common latencies supported by all DIMMs */ - ctrl->tCK = MAX(ctrl->tCK, dimm->tCK); - ctrl->tAA = MAX(ctrl->tAA, dimm->tAA); - ctrl->tWR = MAX(ctrl->tWR, dimm->tWR); + ctrl->tCK = MAX(ctrl->tCK, dimm->tCK); + ctrl->tAA = MAX(ctrl->tAA, dimm->tAA); + ctrl->tWR = MAX(ctrl->tWR, dimm->tWR); ctrl->tRCD = MAX(ctrl->tRCD, dimm->tRCD); ctrl->tRRD = MAX(ctrl->tRRD, dimm->tRRD); - ctrl->tRP = MAX(ctrl->tRP, dimm->tRP); + ctrl->tRP = MAX(ctrl->tRP, dimm->tRP); ctrl->tRAS = MAX(ctrl->tRAS, dimm->tRAS); ctrl->tRFC = MAX(ctrl->tRFC, dimm->tRFC); ctrl->tWTR = MAX(ctrl->tWTR, dimm->tWTR); @@ -286,8 +141,8 @@ void dram_find_common_params(ramctr_timing *ctrl) } if (!ctrl->cas_supported) - die("Unsupported DIMM combination. " - "DIMMS do not support common CAS latency"); + die("Unsupported DIMM combination. DIMMS do not support common CAS latency"); + if (!valid_dimms) die("No valid DIMMs found"); } @@ -298,12 +153,12 @@ void dram_xover(ramctr_timing *ctrl) int channel; FOR_ALL_CHANNELS { - // enable xover clk + /* Enable xover clk */ reg = get_XOVER_CLK(ctrl->rankmap[channel]); printram("XOVER CLK [%x] = %x\n", GDCRCKPICODE_ch(channel), reg); MCHBAR32(GDCRCKPICODE_ch(channel)) = reg; - // enable xover ctl & xover cmd + /* Enable xover ctl & xover cmd */ reg = get_XOVER_CMD(ctrl->rankmap[channel]); printram("XOVER CMD [%x] = %x\n", GDCRCMDPICODING_ch(channel), reg); MCHBAR32(GDCRCMDPICODING_ch(channel)) = reg; @@ -315,22 +170,21 @@ static void dram_odt_stretch(ramctr_timing *ctrl, int channel) u32 addr, cpu, stretch; stretch = ctrl->ref_card_offset[channel]; - /* ODT stretch: Delay ODT signal by stretch value. - * Useful for multi DIMM setups on the same channel. */ + /* + * ODT stretch: + * Delay ODT signal by stretch value. Useful for multi DIMM setups on the same channel. + */ cpu = cpu_get_cpuid(); if (IS_SANDY_CPU(cpu) && IS_SANDY_CPU_C(cpu)) { if (stretch == 2) stretch = 3; + addr = SCHED_SECOND_CBIT_ch(channel); - MCHBAR32_AND_OR(addr, 0xffffc3ff, - (stretch << 12) | (stretch << 10)); - printk(RAM_DEBUG, "OTHP Workaround [%x] = %x\n", addr, - MCHBAR32(addr)); + MCHBAR32_AND_OR(addr, 0xffffc3ff, (stretch << 12) | (stretch << 10)); + printk(RAM_DEBUG, "OTHP Workaround [%x] = %x\n", addr, MCHBAR32(addr)); } else { - // OTHP addr = TC_OTHP_ch(channel); - MCHBAR32_AND_OR(addr, 0xfff0ffff, - (stretch << 16) | (stretch << 18)); + MCHBAR32_AND_OR(addr, 0xfff0ffff, (stretch << 16) | (stretch << 18)); printk(RAM_DEBUG, "OTHP [%x] = %x\n", addr, MCHBAR32(addr)); } } @@ -341,38 +195,39 @@ void dram_timing_regs(ramctr_timing *ctrl) int channel; FOR_ALL_CHANNELS { - // DBP + /* BIN parameters */ reg = 0; - reg |= ctrl->tRCD; - reg |= (ctrl->tRP << 4); - reg |= (ctrl->CAS << 8); - reg |= (ctrl->CWL << 12); + reg |= (ctrl->tRCD << 0); + reg |= (ctrl->tRP << 4); + reg |= (ctrl->CAS << 8); + reg |= (ctrl->CWL << 12); reg |= (ctrl->tRAS << 16); printram("DBP [%x] = %x\n", TC_DBP_ch(channel), reg); MCHBAR32(TC_DBP_ch(channel)) = reg; - // RAP + /* Regular access parameters */ reg = 0; - reg |= ctrl->tRRD; - reg |= (ctrl->tRTP << 4); - reg |= (ctrl->tCKE << 8); + reg |= (ctrl->tRRD << 0); + reg |= (ctrl->tRTP << 4); + reg |= (ctrl->tCKE << 8); reg |= (ctrl->tWTR << 12); reg |= (ctrl->tFAW << 16); - reg |= (ctrl->tWR << 24); + reg |= (ctrl->tWR << 24); reg |= (3 << 30); printram("RAP [%x] = %x\n", TC_RAP_ch(channel), reg); MCHBAR32(TC_RAP_ch(channel)) = reg; - // OTHP + /* Other parameters */ addr = TC_OTHP_ch(channel); reg = 0; - reg |= ctrl->tXPDLL; - reg |= (ctrl->tXP << 5); + reg |= (ctrl->tXPDLL << 0); + reg |= (ctrl->tXP << 5); reg |= (ctrl->tAONPD << 8); reg |= 0xa0000; printram("OTHP [%x] = %x\n", addr, reg); MCHBAR32(addr) = reg; + /* FIXME: This register might as well not exist */ MCHBAR32(0x4014 + channel * 0x400) = 0; MCHBAR32_OR(addr, 0x00020000); @@ -380,33 +235,31 @@ void dram_timing_regs(ramctr_timing *ctrl) dram_odt_stretch(ctrl, channel); /* - * TC-Refresh timing parameters - * The tREFIx9 field should be programmed to minimum of - * 8.9*tREFI (to allow for possible delays from ZQ or - * isoc) and tRASmax (70us) divided by 1024. + * TC-Refresh timing parameters: + * The tREFIx9 field should be programmed to minimum of 8.9 * tREFI (to allow + * for possible delays from ZQ or isoc) and tRASmax (70us) divided by 1024. */ val32 = MIN((ctrl->tREFI * 89) / 10, (70000 << 8) / ctrl->tCK); - reg = ((ctrl->tREFI & 0xffff) << 0) | - ((ctrl->tRFC & 0x1ff) << 16) | - (((val32 / 1024) & 0x7f) << 25); + reg = ((ctrl->tREFI & 0xffff) << 0) | + ((ctrl->tRFC & 0x01ff) << 16) | (((val32 / 1024) & 0x7f) << 25); + printram("REFI [%x] = %x\n", TC_RFTP_ch(channel), reg); MCHBAR32(TC_RFTP_ch(channel)) = reg; MCHBAR32_OR(TC_RFP_ch(channel), 0xff); - // SRFTP + /* Self-refresh timing parameters */ reg = 0; val32 = tDLLK; - reg = (reg & ~0xfff) | val32; + reg = (reg & ~0x00000fff) | (val32 << 0); val32 = ctrl->tXSOffset; - reg = (reg & ~0xf000) | (val32 << 12); + reg = (reg & ~0x0000f000) | (val32 << 12); val32 = tDLLK - ctrl->tXSOffset; - reg = (reg & ~0x3ff0000) | (val32 << 16); + reg = (reg & ~0x03ff0000) | (val32 << 16); val32 = ctrl->tMOD - 8; - reg = (reg & ~0xf0000000) | (val32 << 28); - printram("SRFTP [%x] = %x\n", TC_SRFTP_ch(channel), - reg); + reg = (reg & ~0xf0000000) | (val32 << 28); + printram("SRFTP [%x] = %x\n", TC_SRFTP_ch(channel), reg); MCHBAR32(TC_SRFTP_ch(channel)) = reg; } } @@ -420,34 +273,32 @@ void dram_dimm_mapping(ramctr_timing *ctrl) dimm_attr *dimmA, *dimmB; u32 reg = 0; - if (info->dimm[channel][0].size_mb >= - info->dimm[channel][1].size_mb) { + if (info->dimm[channel][0].size_mb >= info->dimm[channel][1].size_mb) { dimmA = &info->dimm[channel][0]; dimmB = &info->dimm[channel][1]; - reg |= 0 << 16; + reg |= (0 << 16); } else { dimmA = &info->dimm[channel][1]; dimmB = &info->dimm[channel][0]; - reg |= 1 << 16; + reg |= (1 << 16); } if (dimmA && (dimmA->ranks > 0)) { - reg |= dimmA->size_mb / 256; - reg |= (dimmA->ranks - 1) << 17; + reg |= (dimmA->size_mb / 256) << 0; + reg |= (dimmA->ranks - 1) << 17; reg |= (dimmA->width / 8 - 1) << 19; } if (dimmB && (dimmB->ranks > 0)) { - reg |= (dimmB->size_mb / 256) << 8; - reg |= (dimmB->ranks - 1) << 18; + reg |= (dimmB->size_mb / 256) << 8; + reg |= (dimmB->ranks - 1) << 18; reg |= (dimmB->width / 8 - 1) << 20; } - reg |= 1 << 21; /* rank interleave */ - reg |= 1 << 22; /* enhanced interleave */ + reg |= 1 << 21; /* Rank interleave */ + reg |= 1 << 22; /* Enhanced interleave */ - if ((dimmA && (dimmA->ranks > 0)) - || (dimmB && (dimmB->ranks > 0))) { + if ((dimmA && (dimmA->ranks > 0)) || (dimmB && (dimmB->ranks > 0))) { ctrl->mad_dimm[channel] = reg; } else { ctrl->mad_dimm[channel] = 0; @@ -459,7 +310,7 @@ void dram_dimm_set_mapping(ramctr_timing *ctrl) { int channel; FOR_ALL_CHANNELS { - MCHBAR32(MAD_DIMM_CH0 + channel * 4) = ctrl->mad_dimm[channel]; + MCHBAR32(MAD_DIMM(channel)) = ctrl->mad_dimm[channel]; } } @@ -469,6 +320,7 @@ void dram_zones(ramctr_timing *ctrl, int training) u8 val; reg = 0; val = 0; + if (training) { ch0size = ctrl->channel_size_mb[0] ? 256 : 0; ch1size = ctrl->channel_size_mb[1] ? 256 : 0; @@ -481,14 +333,15 @@ void dram_zones(ramctr_timing *ctrl, int training) reg = MCHBAR32(MAD_ZR); val = ch1size / 256; reg = (reg & ~0xff000000) | val << 24; - reg = (reg & ~0xff0000) | (2 * val) << 16; + reg = (reg & ~0x00ff0000) | (2 * val) << 16; MCHBAR32(MAD_ZR) = reg; MCHBAR32(MAD_CHNL) = 0x24; + } else { reg = MCHBAR32(MAD_ZR); val = ch0size / 256; reg = (reg & ~0xff000000) | val << 24; - reg = (reg & ~0xff0000) | (2 * val) << 16; + reg = (reg & ~0x00ff0000) | (2 * val) << 16; MCHBAR32(MAD_ZR) = reg; MCHBAR32(MAD_CHNL) = 0x21; } @@ -509,13 +362,14 @@ unsigned int get_mem_min_tck(void) /* If this is zero, it just means devicetree.cb didn't set it */ if (!cfg || cfg->max_mem_clock_mhz == 0) { + if (CONFIG(NATIVE_RAMINIT_IGNORE_MAX_MEM_FUSES)) return TCK_1333MHZ; rev = pci_read_config8(HOST_BRIDGE, PCI_DEVICE_ID); if ((rev & BASE_REV_MASK) == BASE_REV_SNB) { - /* read Capabilities A Register DMFC bits */ + /* Read Capabilities A Register DMFC bits */ reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_A); reg32 &= 0x7; @@ -523,12 +377,12 @@ unsigned int get_mem_min_tck(void) case 7: return TCK_533MHZ; case 6: return TCK_666MHZ; case 5: return TCK_800MHZ; - /* reserved: */ + /* Reserved */ default: break; } } else { - /* read Capabilities B Register DMFC bits */ + /* Read Capabilities B Register DMFC bits */ reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_B); reg32 = (reg32 >> 4) & 0x7; @@ -540,7 +394,7 @@ unsigned int get_mem_min_tck(void) case 3: return TCK_1066MHZ; case 2: return TCK_1200MHZ; case 1: return TCK_1333MHZ; - /* reserved: */ + /* Reserved */ default: break; } @@ -582,11 +436,9 @@ static unsigned int get_mmio_size(void) void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) { - u32 reg, val, reclaim; - u32 tom, gfxstolen, gttsize; - size_t tsegsize, mmiosize, toludbase, touudbase, gfxstolenbase, gttbase, - tsegbase, mestolenbase; - size_t tsegbasedelta, remapbase, remaplimit; + u32 reg, val, reclaim, tom, gfxstolen, gttsize; + size_t tsegbase, toludbase, remapbase, gfxstolenbase, mmiosize, gttbase; + size_t tsegsize, touudbase, remaplimit, mestolenbase, tsegbasedelta; uint16_t ggc; mmiosize = get_mmio_size(); @@ -594,10 +446,10 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) ggc = pci_read_config16(HOST_BRIDGE, GGC); if (!(ggc & 2)) { gfxstolen = ((ggc >> 3) & 0x1f) * 32; - gttsize = ((ggc >> 8) & 0x3); + gttsize = ((ggc >> 8) & 0x3); } else { gfxstolen = 0; - gttsize = 0; + gttsize = 0; } tsegsize = CONFIG_SMM_TSEG_SIZE >> 20; @@ -606,14 +458,14 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) mestolenbase = tom - me_uma_size; - toludbase = MIN(4096 - mmiosize + gfxstolen + gttsize + tsegsize, - tom - me_uma_size); + toludbase = MIN(4096 - mmiosize + gfxstolen + gttsize + tsegsize, tom - me_uma_size); + gfxstolenbase = toludbase - gfxstolen; gttbase = gfxstolenbase - gttsize; tsegbase = gttbase - tsegsize; - // Round tsegbase down to nearest address aligned to tsegsize + /* Round tsegbase down to nearest address aligned to tsegsize */ tsegbasedelta = tsegbase & (tsegsize - 1); tsegbase &= ~(tsegsize - 1); @@ -621,24 +473,23 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) gfxstolenbase -= tsegbasedelta; toludbase -= tsegbasedelta; - // Test if it is possible to reclaim a hole in the RAM addressing + /* Test if it is possible to reclaim a hole in the RAM addressing */ if (tom - me_uma_size > toludbase) { - // Reclaim is possible - reclaim = 1; - remapbase = MAX(4096, tom - me_uma_size); - remaplimit = - remapbase + MIN(4096, tom - me_uma_size) - toludbase - 1; - touudbase = remaplimit + 1; + /* Reclaim is possible */ + reclaim = 1; + remapbase = MAX(4096, tom - me_uma_size); + remaplimit = remapbase + MIN(4096, tom - me_uma_size) - toludbase - 1; + touudbase = remaplimit + 1; } else { // Reclaim not possible - reclaim = 0; + reclaim = 0; touudbase = tom - me_uma_size; } - // Update memory map in pci-e configuration space + /* Update memory map in PCIe configuration space */ printk(BIOS_DEBUG, "Update PCI-E configuration space:\n"); - // TOM (top of memory) + /* TOM (top of memory) */ reg = pci_read_config32(HOST_BRIDGE, TOM); val = tom & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); @@ -651,21 +502,21 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOM + 4, reg); pci_write_config32(HOST_BRIDGE, TOM + 4, reg); - // TOLUD (top of low used dram) + /* TOLUD (Top Of Low Usable DRAM) */ reg = pci_read_config32(HOST_BRIDGE, TOLUD); val = toludbase & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOLUD, reg); pci_write_config32(HOST_BRIDGE, TOLUD, reg); - // TOUUD LSB (top of upper usable dram) + /* TOUUD LSB (Top Of Upper Usable DRAM) */ reg = pci_read_config32(HOST_BRIDGE, TOUUD); val = touudbase & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TOUUD, reg); pci_write_config32(HOST_BRIDGE, TOUUD, reg); - // TOUUD MSB + /* TOUUD MSB */ reg = pci_read_config32(HOST_BRIDGE, TOUUD + 4); val = touudbase & 0xfffff000; reg = (reg & ~0x000fffff) | (val >> 12); @@ -673,29 +524,29 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) pci_write_config32(HOST_BRIDGE, TOUUD + 4, reg); if (reclaim) { - // REMAP BASE - pci_write_config32(HOST_BRIDGE, REMAPBASE, remapbase << 20); + /* REMAP BASE */ + pci_write_config32(HOST_BRIDGE, REMAPBASE, remapbase << 20); pci_write_config32(HOST_BRIDGE, REMAPBASE + 4, remapbase >> 12); - // REMAP LIMIT - pci_write_config32(HOST_BRIDGE, REMAPLIMIT, remaplimit << 20); + /* REMAP LIMIT */ + pci_write_config32(HOST_BRIDGE, REMAPLIMIT, remaplimit << 20); pci_write_config32(HOST_BRIDGE, REMAPLIMIT + 4, remaplimit >> 12); } - // TSEG + /* TSEG */ reg = pci_read_config32(HOST_BRIDGE, TSEGMB); val = tsegbase & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", TSEGMB, reg); pci_write_config32(HOST_BRIDGE, TSEGMB, reg); - // GFX stolen memory + /* GFX stolen memory */ reg = pci_read_config32(HOST_BRIDGE, BDSM); val = gfxstolenbase & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", BDSM, reg); pci_write_config32(HOST_BRIDGE, BDSM, reg); - // GTT stolen memory + /* GTT stolen memory */ reg = pci_read_config32(HOST_BRIDGE, BGSM); val = gttbase & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); @@ -709,7 +560,7 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_MASK + 4, reg); pci_write_config32(HOST_BRIDGE, MESEG_MASK + 4, reg); - // ME base + /* ME base */ reg = pci_read_config32(HOST_BRIDGE, MESEG_BASE); val = mestolenbase & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); @@ -722,12 +573,12 @@ void dram_memorymap(ramctr_timing *ctrl, int me_uma_size) printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_BASE + 4, reg); pci_write_config32(HOST_BRIDGE, MESEG_BASE + 4, reg); - // ME mask + /* ME mask */ reg = pci_read_config32(HOST_BRIDGE, MESEG_MASK); val = (0x80000 - me_uma_size) & 0xfff; reg = (reg & ~0xfff00000) | (val << 20); - reg = reg | ME_STLEN_EN; // set ME memory enable - reg = reg | MELCK; // set lockbit on ME mem + reg = reg | ME_STLEN_EN; /* Set ME memory enable */ + reg = reg | MELCK; /* Set lock bit on ME mem */ printk(BIOS_DEBUG, "PCI(0, 0, 0)[%x] = %x\n", MESEG_MASK, reg); pci_write_config32(HOST_BRIDGE, MESEG_MASK, reg); } @@ -745,21 +596,25 @@ static void write_reset(ramctr_timing *ctrl) { int channel, slotrank; - /* choose a populated channel. */ + /* Choose a populated channel */ channel = (ctrl->rankmap[0]) ? 0 : 1; wait_for_iosav(channel); - /* choose a populated rank. */ + /* Choose a populated rank */ slotrank = (ctrl->rankmap[channel] & 1) ? 0 : 2; /* DRAM command ZQCS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x80c01; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x80c01; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; - // execute command queue - why is bit 22 set here?! + /* + * Execute command queue - why is bit 22 set here?! + * + * This is actually using the IOSAV state machine as a timer, so refresh is allowed. + */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = (1 << 22) | IOSAV_RUN_ONCE(1); wait_for_iosav(channel); @@ -770,101 +625,99 @@ void dram_jedecreset(ramctr_timing *ctrl) u32 reg; int channel; - while (!(MCHBAR32(RCOMP_TIMER) & 0x10000)); + while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16))) + ; do { reg = MCHBAR32(IOSAV_STATUS_ch(0)); } while ((reg & 0x14) == 0); - // Set state of memory controller + /* Set state of memory controller */ reg = 0x112; MCHBAR32(MC_INIT_STATE_G) = reg; MCHBAR32(MC_INIT_STATE) = 0; - reg |= 2; //ddr reset + reg |= 2; /* DDR reset */ MCHBAR32(MC_INIT_STATE_G) = reg; - // Assert dimm reset signal - MCHBAR32_AND(MC_INIT_STATE_G, ~0x2); + /* Assert DIMM reset signal */ + MCHBAR32_AND(MC_INIT_STATE_G, ~2); - // Wait 200us + /* Wait 200us */ udelay(200); - // Deassert dimm reset signal + /* Deassert DIMM reset signal */ MCHBAR32_OR(MC_INIT_STATE_G, 2); - // Wait 500us + /* Wait 500us */ udelay(500); - // Enable DCLK + /* Enable DCLK */ MCHBAR32_OR(MC_INIT_STATE_G, 4); - // XXX Wait 20ns + /* XXX Wait 20ns */ udelay(1); FOR_ALL_CHANNELS { - // Set valid rank CKE + /* Set valid rank CKE */ reg = ctrl->rankmap[channel]; MCHBAR32(MC_INIT_STATE_ch(channel)) = reg; - // Wait 10ns for ranks to settle - //udelay(0.01); + /* Wait 10ns for ranks to settle */ + // udelay(0.01); reg = (reg & ~0xf0) | (ctrl->rankmap[channel] << 4); MCHBAR32(MC_INIT_STATE_ch(channel)) = reg; - // Write reset using a NOP + /* Write reset using a NOP */ write_reset(ctrl); } } static odtmap get_ODT(ramctr_timing *ctrl, u8 rank, int channel) { - /* Get ODT based on rankmap: */ - int dimms_per_ch = (ctrl->rankmap[channel] & 1) - + ((ctrl->rankmap[channel] >> 2) & 1); + /* Get ODT based on rankmap */ + int dimms_per_ch = (ctrl->rankmap[channel] & 1) + ((ctrl->rankmap[channel] >> 2) & 1); if (dimms_per_ch == 1) { - return (const odtmap){60, 60}; + return (const odtmap){60, 60}; } else { return (const odtmap){120, 30}; } } -static void write_mrreg(ramctr_timing *ctrl, int channel, int slotrank, - int reg, u32 val) +static void write_mrreg(ramctr_timing *ctrl, int channel, int slotrank, int reg, u32 val) { wait_for_iosav(channel); if (ctrl->rank_mirror[channel][slotrank]) { /* DDR3 Rank1 Address mirror - * swap the following pins: - * A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */ + swap the following pins: + A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */ reg = ((reg >> 1) & 1) | ((reg << 1) & 2); - val = (val & ~0x1f8) | ((val >> 1) & 0xa8) - | ((val & 0xa8) << 1); + val = (val & ~0x1f8) | ((val >> 1) & 0xa8) | ((val & 0xa8) << 1); } /* DRAM command MRS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | (reg << 20) | val | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command MRS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x41001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x41001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | (reg << 20) | val | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command MRS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x0f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x1001 | (ctrl->tMOD << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x0f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | (reg << 20) | val | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(3); } @@ -877,7 +730,7 @@ static u32 make_mr0(ramctr_timing *ctrl, u8 rank) /* DLL Reset - self clearing - set after CLK frequency has been changed */ mr0reg = 0x100; - // Convert CAS to MCH register friendly + /* Convert CAS to MCH register friendly */ if (ctrl->CAS < 12) { mch_cas = (u16) ((ctrl->CAS - 4) << 1); } else { @@ -885,15 +738,15 @@ static u32 make_mr0(ramctr_timing *ctrl, u8 rank) mch_cas = ((mch_cas << 1) | 0x1); } - // Convert tWR to MCH register friendly + /* Convert tWR to MCH register friendly */ mch_wr = mch_wr_t[ctrl->tWR - 5]; - mr0reg = (mr0reg & ~0x4) | ((mch_cas & 0x1) << 2); - mr0reg = (mr0reg & ~0x70) | ((mch_cas & 0xe) << 3); - mr0reg = (mr0reg & ~0xe00) | (mch_wr << 9); + mr0reg = (mr0reg & ~0x0004) | ((mch_cas & 0x1) << 2); + mr0reg = (mr0reg & ~0x0070) | ((mch_cas & 0xe) << 3); + mr0reg = (mr0reg & ~0x0e00) | (mch_wr << 9); - // Precharge PD - Fast (desktop) 0x1 or slow (mobile) 0x0 - mostly power-saving feature - mr0reg = (mr0reg & ~0x1000) | (!is_mobile << 12); + /* Precharge PD - Fast (desktop) 1 or slow (mobile) 0 - mostly power-saving feature */ + mr0reg = (mr0reg & ~(1 << 12)) | (!is_mobile << 12); return mr0reg; } @@ -923,7 +776,7 @@ static u32 make_mr1(ramctr_timing *ctrl, u8 rank, int channel) u32 mr1reg; odt = get_ODT(ctrl, rank, channel); - mr1reg = 0x2; + mr1reg = 2; mr1reg |= encode_odt(odt.rttnom); @@ -952,7 +805,7 @@ static void dram_mr2(ramctr_timing *ctrl, u8 rank, int channel) srt = ctrl->extended_temperature_range && !ctrl->auto_self_refresh; mr2reg = 0; - mr2reg = (mr2reg & ~0x7) | pasr; + mr2reg = (mr2reg & ~0x07) | pasr; mr2reg = (mr2reg & ~0x38) | (cwl << 3); mr2reg = (mr2reg & ~0x40) | (ctrl->auto_self_refresh << 6); mr2reg = (mr2reg & ~0x80) | (srt << 7); @@ -973,42 +826,41 @@ void dram_mrscommands(ramctr_timing *ctrl) FOR_ALL_POPULATED_CHANNELS { FOR_ALL_POPULATED_RANKS { - // MR2 + /* MR2 */ dram_mr2(ctrl, slotrank, channel); - // MR3 + /* MR3 */ dram_mr3(ctrl, slotrank, channel); - // MR1 + /* MR1 */ dram_mr1(ctrl, slotrank, channel); - // MR0 + /* MR0 */ dram_mr0(ctrl, slotrank, channel); } } /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL(0)) = 0x7; - MCHBAR32(IOSAV_n_SUBSEQ_CTL(0)) = 0xf1001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL(0)) = 0x7; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL(0)) = 0xf1001; MCHBAR32(IOSAV_n_SP_CMD_ADDR(0)) = 0x60002; - MCHBAR32(IOSAV_n_ADDR_UPD(0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE(0)) = 0; /* DRAM command ZQCL */ - MCHBAR32(IOSAV_n_SP_CMD_CTL(1)) = 0x1f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL(1)) = 0x1901001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL(1)) = 0x1f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL(1)) = 0x1901001; MCHBAR32(IOSAV_n_SP_CMD_ADDR(1)) = 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD(1)) = 0x288; + MCHBAR32(IOSAV_n_ADDR_UPDATE(1)) = 0x288; - // execute command queue on all channels? Why isn't bit 0 set here? - MCHBAR32(IOSAV_SEQ_CTL) = 0x40004; + /* Execute command queue on all channels. Do it four times. */ + MCHBAR32(IOSAV_SEQ_CTL) = (1 << 18) | 4; - // Drain FOR_ALL_CHANNELS { - // Wait for ref drained + /* Wait for ref drained */ wait_for_iosav(channel); } - // Refresh enable + /* Refresh enable */ MCHBAR32_OR(MC_INIT_STATE_G, 8); FOR_ALL_POPULATED_CHANNELS { @@ -1018,20 +870,19 @@ void dram_mrscommands(ramctr_timing *ctrl) slotrank = (ctrl->rankmap[channel] & 1) ? 0 : 2; - // Drain + /* Drain */ wait_for_iosav(channel); /* DRAM command ZQCS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x659001; - MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = - (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x659001; + MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); - // Drain + /* Drain */ wait_for_iosav(channel); } } @@ -1063,42 +914,41 @@ void program_timings(ramctr_timing *ctrl, int channel) break; case 1: pi_coding_ctrl[slot] = - ctrl->timings[channel][2 * slot + 0].pi_coding + - full_shift; + ctrl->timings[channel][2 * slot + 0].pi_coding + full_shift; break; case 2: pi_coding_ctrl[slot] = - ctrl->timings[channel][2 * slot + 1].pi_coding + - full_shift; + ctrl->timings[channel][2 * slot + 1].pi_coding + full_shift; break; case 3: pi_coding_ctrl[slot] = (ctrl->timings[channel][2 * slot].pi_coding + - ctrl->timings[channel][2 * slot + 1].pi_coding) / 2 + - full_shift; + ctrl->timings[channel][2 * slot + 1].pi_coding) / 2 + full_shift; break; } - /* enable CMD XOVER */ + /* Enable CMD XOVER */ reg32 = get_XOVER_CMD(ctrl->rankmap[channel]); - reg32 |= ((pi_coding_ctrl[0] & 0x3f) << 6) | ((pi_coding_ctrl[0] & 0x40) << 9); + reg32 |= (pi_coding_ctrl[0] & 0x3f) << 6; + reg32 |= (pi_coding_ctrl[0] & 0x40) << 9; reg32 |= (pi_coding_ctrl[1] & 0x7f) << 18; reg32 |= (full_shift & 0x3f) | ((full_shift & 0x40) << 6); MCHBAR32(GDCRCMDPICODING_ch(channel)) = reg32; - /* enable CLK XOVER */ + /* Enable CLK XOVER */ reg_pi_code = get_XOVER_CLK(ctrl->rankmap[channel]); reg_logic_delay = 0; FOR_ALL_POPULATED_RANKS { - int shift = - ctrl->timings[channel][slotrank].pi_coding + full_shift; + int shift = ctrl->timings[channel][slotrank].pi_coding + full_shift; int offset_pi_code; if (shift < 0) shift = 0; + offset_pi_code = ctrl->pi_code_offset + shift; - /* set CLK phase shift */ + + /* Set CLK phase shift */ reg_pi_code |= (offset_pi_code & 0x3f) << (6 * slotrank); reg_logic_delay |= ((offset_pi_code >> 6) & 1) << slotrank; } @@ -1112,11 +962,10 @@ void program_timings(ramctr_timing *ctrl, int channel) reg_roundtrip_latency = 0; FOR_ALL_POPULATED_RANKS { - int post_timA_min_high = 7, post_timA_max_high = 0; - int pre_timA_min_high = 7, pre_timA_max_high = 0; + int post_timA_min_high = 7, pre_timA_min_high = 7; + int post_timA_max_high = 0, pre_timA_max_high = 0; int shift_402x = 0; - int shift = - ctrl->timings[channel][slotrank].pi_coding + full_shift; + int shift = ctrl->timings[channel][slotrank].pi_coding + full_shift; if (shift < 0) shift = 0; @@ -1139,6 +988,7 @@ void program_timings(ramctr_timing *ctrl, int channel) if (pre_timA_max_high - pre_timA_min_high < post_timA_max_high - post_timA_min_high) shift_402x = +1; + else if (pre_timA_max_high - pre_timA_min_high > post_timA_max_high - post_timA_min_high) shift_402x = -1; @@ -1146,6 +996,7 @@ void program_timings(ramctr_timing *ctrl, int channel) reg_io_latency |= (ctrl->timings[channel][slotrank].io_latency + shift_402x - post_timA_min_high) << (4 * slotrank); + reg_roundtrip_latency |= (ctrl->timings[channel][slotrank].roundtrip_latency + shift_402x) << (8 * slotrank); @@ -1187,45 +1038,45 @@ static void test_timA(ramctr_timing *ctrl, int channel, int slotrank) wait_for_iosav(channel); /* DRAM command MRS - * write MR3 MPR enable - * in this mode only RD and RDA are allowed - * all reads return a predefined pattern */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = (0xc01 | (ctrl->tMOD << 16)); + write MR3 MPR enable + in this mode only RD and RDA are allowed + all reads return a predefined pattern */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = (0xc01 | (ctrl->tMOD << 16)); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4040c01; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4040c01; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x100f | ((ctrl->CAS + 36) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x100f | ((ctrl->CAS + 36) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; /* DRAM command MRS - * write MR3 MPR disable */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); + write MR3 MPR disable */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); } -static int does_lane_work(ramctr_timing *ctrl, int channel, int slotrank, - int lane) +static int does_lane_work(ramctr_timing *ctrl, int channel, int slotrank, int lane) { u32 timA = ctrl->timings[channel][slotrank].lanes[lane].timA; - return ((MCHBAR32(lane_base[lane] + GDCRTRAININGRESULT(channel, (timA / 32) & 1)) >> - (timA % 32)) & 1); + + return (MCHBAR32(lane_base[lane] + + GDCRTRAININGRESULT(channel, (timA / 32) & 1)) >> (timA % 32)) & 1; } struct run { @@ -1253,24 +1104,23 @@ static struct run get_longest_zero_run(int *seq, int sz) } if (bl == 0) { ret.middle = sz / 2; - ret.start = 0; - ret.end = sz; + ret.start = 0; + ret.end = sz; ret.length = sz; - ret.all = 1; + ret.all = 1; return ret; } - ret.start = bs % sz; - ret.end = (bs + bl - 1) % sz; + ret.start = bs % sz; + ret.end = (bs + bl - 1) % sz; ret.middle = (bs + (bl - 1) / 2) % sz; ret.length = bl; - ret.all = 0; + ret.all = 0; return ret; } -static void discover_timA_coarse(ramctr_timing *ctrl, int channel, - int slotrank, int *upperA) +static void discover_timA_coarse(ramctr_timing *ctrl, int channel, int slotrank, int *upperA) { int timA; int statistics[NUM_LANES][128]; @@ -1285,8 +1135,7 @@ static void discover_timA_coarse(ramctr_timing *ctrl, int channel, test_timA(ctrl, channel, slotrank); FOR_ALL_LANES { - statistics[lane][timA] = - !does_lane_work(ctrl, channel, slotrank, lane); + statistics[lane][timA] = !does_lane_work(ctrl, channel, slotrank, lane); } } FOR_ALL_LANES { @@ -1295,13 +1144,13 @@ static void discover_timA_coarse(ramctr_timing *ctrl, int channel, upperA[lane] = rn.end; if (upperA[lane] < rn.middle) upperA[lane] += 128; + printram("timA: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n", channel, slotrank, lane, rn.start, rn.middle, rn.end); } } -static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank, - int *upperA) +static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank, int *upperA) { int timA_delta; int statistics[NUM_LANES][51]; @@ -1310,16 +1159,18 @@ static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank, memset(statistics, 0, sizeof(statistics)); for (timA_delta = -25; timA_delta <= 25; timA_delta++) { - FOR_ALL_LANES ctrl->timings[channel][slotrank].lanes[lane]. - timA = upperA[lane] + timA_delta + 0x40; + + FOR_ALL_LANES { + ctrl->timings[channel][slotrank].lanes[lane].timA + = upperA[lane] + timA_delta + 0x40; + } program_timings(ctrl, channel); for (i = 0; i < 100; i++) { test_timA(ctrl, channel, slotrank); FOR_ALL_LANES { statistics[lane][timA_delta + 25] += - does_lane_work(ctrl, channel, slotrank, - lane); + does_lane_work(ctrl, channel, slotrank, lane); } } } @@ -1329,18 +1180,19 @@ static void discover_timA_fine(ramctr_timing *ctrl, int channel, int slotrank, for (last_zero = -25; last_zero <= 25; last_zero++) if (statistics[lane][last_zero + 25]) break; + last_zero--; for (first_all = -25; first_all <= 25; first_all++) if (statistics[lane][first_all + 25] == 100) break; - printram("lane %d: %d, %d\n", lane, last_zero, - first_all); + printram("lane %d: %d, %d\n", lane, last_zero, first_all); ctrl->timings[channel][slotrank].lanes[lane].timA = - (last_zero + first_all) / 2 + upperA[lane]; + (last_zero + first_all) / 2 + upperA[lane]; + printram("Aval: %d, %d, %d: %x\n", channel, slotrank, - lane, ctrl->timings[channel][slotrank].lanes[lane].timA); + lane, ctrl->timings[channel][slotrank].lanes[lane].timA); } } @@ -1348,13 +1200,16 @@ static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *up { int works[NUM_LANES]; int lane; + while (1) { int all_works = 1, some_works = 0; + program_timings(ctrl, channel); test_timA(ctrl, channel, slotrank); + FOR_ALL_LANES { - works[lane] = - !does_lane_work(ctrl, channel, slotrank, lane); + works[lane] = !does_lane_work(ctrl, channel, slotrank, lane); + if (works[lane]) some_works = 1; else @@ -1362,6 +1217,7 @@ static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *up } if (all_works) return 0; + if (!some_works) { if (ctrl->timings[channel][slotrank].roundtrip_latency < 2) { printk(BIOS_EMERG, "402x discovery failed (1): %d, %d\n", @@ -1374,6 +1230,7 @@ static int discover_402x(ramctr_timing *ctrl, int channel, int slotrank, int *up } ctrl->timings[channel][slotrank].io_latency += 2; printram("4028 += 2;\n"); + if (ctrl->timings[channel][slotrank].io_latency >= 0x10) { printk(BIOS_EMERG, "402x discovery failed (2): %d, %d\n", channel, slotrank); @@ -1417,15 +1274,17 @@ static void post_timA_change(ramctr_timing *ctrl, int channel, int slotrank, struct timA_minmax post; int shift_402x = 0; - /* Get changed maxima. */ + /* Get changed maxima */ pre_timA_change(ctrl, channel, slotrank, &post); if (mnmx->timA_max_high - mnmx->timA_min_high < post.timA_max_high - post.timA_min_high) shift_402x = +1; + else if (mnmx->timA_max_high - mnmx->timA_min_high > post.timA_max_high - post.timA_min_high) shift_402x = -1; + else shift_402x = 0; @@ -1435,17 +1294,21 @@ static void post_timA_change(ramctr_timing *ctrl, int channel, int slotrank, printram("4028 += %d;\n", shift_402x); } -/* Compensate the skew between DQS and DQs. +/* + * Compensate the skew between DQS and DQs. + * * To ease PCB design, a small skew between Data Strobe signals and Data Signals is allowed. * The controller has to measure and compensate this skew for every byte-lane. By delaying - * either all DQs signals or DQS signal, a full phase shift can be introduced. It is assumed + * either all DQ signals or DQS signal, a full phase shift can be introduced. It is assumed * that one byte-lane's DQs signals have the same routing delay. * * To measure the actual skew, the DRAM is placed in "read leveling" mode. In read leveling * mode the DRAM-chip outputs an alternating periodic pattern. The memory controller iterates * over all possible values to do a full phase shift and issues read commands. With DQS and - * DQs in phase the data read is expected to alternate on every byte: + * DQ in phase the data being read is expected to alternate on every byte: + * * 0xFF 0x00 0xFF ... + * * Once the controller has detected this pattern a bit in the result register is set for the * current phase shift. */ @@ -1462,12 +1325,12 @@ int read_training(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command PREA */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); MCHBAR32(GDCRTRAININGMOD) = (slotrank << 2) | 0x8001; @@ -1519,7 +1382,8 @@ int read_training(ramctr_timing *ctrl) pre_timA_change(ctrl, channel, slotrank, &mnmx); FOR_ALL_LANES { - ctrl->timings[channel][slotrank].lanes[lane].timA -= mnmx.timA_min_high * 0x40; + ctrl->timings[channel][slotrank].lanes[lane].timA -= + mnmx.timA_min_high * 0x40; } ctrl->timings[channel][slotrank].io_latency -= mnmx.timA_min_high; printram("4028 -= %d;\n", mnmx.timA_min_high); @@ -1532,8 +1396,7 @@ int read_training(ramctr_timing *ctrl) printram("final results:\n"); FOR_ALL_LANES - printram("Aval: %d, %d, %d: %x\n", channel, slotrank, - lane, + printram("Aval: %d, %d, %d: %x\n", channel, slotrank, lane, ctrl->timings[channel][slotrank].lanes[lane].timA); MCHBAR32(GDCRTRAININGMOD) = 0; @@ -1562,65 +1425,63 @@ static void test_timC(ramctr_timing *ctrl, int channel, int slotrank) wait_for_iosav(channel); /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = - (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) - | 4 | (ctrl->tRCD << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = + (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) | 4 | (ctrl->tRCD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | (6 << 16); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x244; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x244; /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f207; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x8041001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f207; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8041001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 8; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x3e0; /* DRAM command WR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f201; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x80411f4; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f201; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x80411f4; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f207; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = - 0x8000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f207; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = + 0x08000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 8; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); /* DRAM command PREA */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = - (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10) - | 8 | (ctrl->CAS << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = + (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10) | 8 | (ctrl->CAS << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x244; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x244; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x40011f4 | (MAX(ctrl->tRTP, 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; /* DRAM command PREA */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xc01 | (ctrl->tRP << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tRP << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x240; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -1634,30 +1495,32 @@ static void timC_threshold_process(int *data, const int count) for (i = 1; i < count; i++) { if (min > data[i]) min = data[i]; + if (max < data[i]) max = data[i]; } - int threshold = min/2 + max/2; + int threshold = min / 2 + max / 2; for (i = 0; i < count; i++) data[i] = data[i] > threshold; + printram("threshold=%d min=%d max=%d\n", threshold, min, max); } static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank) { int timC; - int statistics[NUM_LANES][MAX_TIMC + 1]; + int stats[NUM_LANES][MAX_TIMC + 1]; int lane; wait_for_iosav(channel); /* DRAM command PREA */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRP << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); for (timC = 0; timC <= MAX_TIMC; timC++) { @@ -1667,24 +1530,22 @@ static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank) test_timC(ctrl, channel, slotrank); FOR_ALL_LANES { - statistics[lane][timC] = - MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); + stats[lane][timC] = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); } } FOR_ALL_LANES { - struct run rn = get_longest_zero_run( - statistics[lane], ARRAY_SIZE(statistics[lane])); + struct run rn = get_longest_zero_run(stats[lane], ARRAY_SIZE(stats[lane])); + if (rn.all || rn.length < 8) { printk(BIOS_EMERG, "timC discovery failed: %d, %d, %d\n", channel, slotrank, lane); - /* With command training not happend yet, the lane can - * be erroneous. Take the avarage as reference and try - * again to find a run. + /* + * With command training not being done yet, the lane can be erroneous. + * Take the average as reference and try again to find a run. */ - timC_threshold_process(statistics[lane], - ARRAY_SIZE(statistics[lane])); - rn = get_longest_zero_run(statistics[lane], - ARRAY_SIZE(statistics[lane])); + timC_threshold_process(stats[lane], ARRAY_SIZE(stats[lane])); + rn = get_longest_zero_run(stats[lane], ARRAY_SIZE(stats[lane])); + if (rn.all || rn.length < 8) { printk(BIOS_EMERG, "timC recovery failed\n"); return MAKE_ERR; @@ -1700,8 +1561,10 @@ static int discover_timC(ramctr_timing *ctrl, int channel, int slotrank) static int get_precedening_channels(ramctr_timing *ctrl, int target_channel) { int channel, ret = 0; + FOR_ALL_POPULATED_CHANNELS if (channel < target_channel) ret++; + return ret; } @@ -1709,8 +1572,10 @@ static void fill_pattern0(ramctr_timing *ctrl, int channel, u32 a, u32 b) { unsigned int j; unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40; + for (j = 0; j < 16; j++) write32((void *)(0x04000000 + channel_offset + 4 * j), j & 2 ? b : a); + sfence(); } @@ -1727,10 +1592,13 @@ static void fill_pattern1(ramctr_timing *ctrl, int channel) unsigned int j; unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40; unsigned int channel_step = 0x40 * num_of_channels(ctrl); + for (j = 0; j < 16; j++) write32((void *)(0x04000000 + channel_offset + j * 4), 0xffffffff); + for (j = 0; j < 16; j++) write32((void *)(0x04000000 + channel_offset + channel_step + j * 4), 0); + sfence(); } @@ -1750,40 +1618,40 @@ static void precharge(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command MRS - * write MR3 MPR enable - * in this mode only RD and RDA are allowed - * all reads return a predefined pattern */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + write MR3 MPR enable + in this mode only RD and RDA are allowed + all reads return a predefined pattern */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; /* DRAM command MRS * write MR3 MPR disable */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -1802,37 +1670,37 @@ static void precharge(ramctr_timing *ctrl) * write MR3 MPR enable * in this mode only RD and RDA are allowed * all reads return a predefined pattern */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; /* DRAM command MRS * write MR3 MPR disable */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -1847,19 +1715,19 @@ static void test_timB(ramctr_timing *ctrl, int channel, int slotrank) wait_for_iosav(channel); /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f207; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f207; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x8000c01 | ((ctrl->CWL + ctrl->tWLO) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 8 | (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f107; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4000c01 | ((ctrl->CAS + 38) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f107; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4000c01 | ((ctrl->CAS + 38) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 4; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(2); wait_for_iosav(channel); @@ -1892,23 +1760,25 @@ static int discover_timB(ramctr_timing *ctrl, int channel, int slotrank) } FOR_ALL_LANES { struct run rn = get_longest_zero_run(statistics[lane], 128); - /* timC is a direct function of timB's 6 LSBs. - * Some tests increments the value of timB by a small value, - * which might cause the 6bit value to overflow, if it's close - * to 0x3F. Increment the value by a small offset if it's likely - * to overflow, to make sure it won't overflow while running - * tests and bricks the system due to a non matching timC. + /* + * timC is a direct function of timB's 6 LSBs. Some tests increments the value + * of timB by a small value, which might cause the 6-bit value to overflow if + * it's close to 0x3f. Increment the value by a small offset if it's likely + * to overflow, to make sure it won't overflow while running tests and bricks + * the system due to a non matching timC. * - * TODO: find out why some tests (edge write discovery) - * increment timB. */ - if ((rn.start & 0x3F) == 0x3E) + * TODO: find out why some tests (edge write discovery) increment timB. + */ + if ((rn.start & 0x3f) == 0x3e) rn.start += 2; - else if ((rn.start & 0x3F) == 0x3F) + else if ((rn.start & 0x3f) == 0x3f) rn.start += 1; + ctrl->timings[channel][slotrank].lanes[lane].timB = rn.start; if (rn.all) { printk(BIOS_EMERG, "timB discovery failed: %d, %d, %d\n", channel, slotrank, lane); + return MAKE_ERR; } printram("timB: %d, %d, %d: 0x%02x-0x%02x-0x%02x\n", @@ -1954,56 +1824,56 @@ static void adjust_high_timB(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tRCD << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tRCD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f207; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x8040c01; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f207; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8040c01; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x8; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x3e0; /* DRAM command WR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f201; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x8041003; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f201; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x8041003; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x3e2; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x3e2; /* DRAM command NOP */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f207; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f207; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x8000c01 | ((ctrl->CWL + ctrl->tWTR + 5) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x8; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); /* DRAM command PREA */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | ((ctrl->tRP) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | ((ctrl->tRP) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0xc01 | ((ctrl->tRCD) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0xc01 | ((ctrl->tRCD) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x3f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x4000c01 | ((ctrl->tRP + + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x3f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x4000c01 | ((ctrl->tRP + ctrl->timings[channel][slotrank].roundtrip_latency + ctrl->timings[channel][slotrank].io_latency) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60008; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(3); wait_for_iosav(channel); @@ -2033,28 +1903,28 @@ static void write_op(ramctr_timing *ctrl, int channel) slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0; /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); wait_for_iosav(channel); } -/* Compensate the skew between CMD/ADDR/CLK and DQ/DQS lanes. - * DDR3 adopted the fly-by topology. The data and strobes signals reach - * the chips at different times with respect to command, address and - * clock signals. - * By delaying either all DQ/DQs or all CMD/ADDR/CLK signals, a full phase - * shift can be introduced. - * It is assumed that the CLK/ADDR/CMD signals have the same routing delay. +/* + * Compensate the skew between CMD/ADDR/CLK and DQ/DQS lanes. + * + * Since DDR3 uses a fly-by topology, the data and strobes signals reach the chips at different + * times with respect to command, address and clock signals. By delaying either all DQ/DQS or + * all CMD/ADDR/CLK signals, a full phase shift can be introduced. It is assumed that the + * CLK/ADDR/CMD signals have the same routing delay. * - * To find the required phase shift the DRAM is placed in "write leveling" mode. - * In this mode the DRAM-chip samples the CLK on every DQS edge and feeds back the - * sampled value on the data lanes (DQs). + * To find the required phase shift the DRAM is placed in "write leveling" mode. In this mode, + * the DRAM-chip samples the CLK on every DQS edge and feeds back the sampled value on the data + * lanes (DQ). */ int write_training(ramctr_timing *ctrl) { @@ -2069,42 +1939,40 @@ int write_training(ramctr_timing *ctrl) MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x200000); } - /* refresh disable */ + /* Refresh disable */ MCHBAR32_AND(MC_INIT_STATE_G, ~8); FOR_ALL_POPULATED_CHANNELS { write_op(ctrl, channel); } - /* enable write leveling on all ranks - * disable all DQ outputs - * only NOP is allowed in this mode */ - FOR_ALL_CHANNELS - FOR_ALL_POPULATED_RANKS - write_mrreg(ctrl, channel, slotrank, 1, + /* Enable write leveling on all ranks + Disable all DQ outputs + Only NOP is allowed in this mode */ + FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS + write_mrreg(ctrl, channel, slotrank, 1, make_mr1(ctrl, slotrank, channel) | 0x1080); MCHBAR32(GDCRTRAININGMOD) = 0x108052; toggle_io_reset(); - /* set any valid value for timB, it gets corrected later */ + /* Set any valid value for timB, it gets corrected later */ FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { err = discover_timB(ctrl, channel, slotrank); if (err) return err; } - /* disable write leveling on all ranks */ + /* Disable write leveling on all ranks */ FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS - write_mrreg(ctrl, channel, - slotrank, 1, make_mr1(ctrl, slotrank, channel)); + write_mrreg(ctrl, channel, slotrank, 1, make_mr1(ctrl, slotrank, channel)); MCHBAR32(GDCRTRAININGMOD) = 0; FOR_ALL_POPULATED_CHANNELS wait_for_iosav(channel); - /* refresh enable */ + /* Refresh enable */ MCHBAR32_OR(MC_INIT_STATE_G, 8); FOR_ALL_POPULATED_CHANNELS { @@ -2113,12 +1981,12 @@ int write_training(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command ZQCS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x659001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x659001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); wait_for_iosav(channel); @@ -2182,37 +2050,37 @@ static int test_320c(ramctr_timing *ctrl, int channel, int slotrank) wait_for_iosav(channel); /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = ((MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1)) << 10) | 8 | (ctrl->tRCD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | ctr | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x244; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x244; /* DRAM command WR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f201; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8001020 | ((ctrl->CWL + ctrl->tWTR + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24); MCHBAR32(IOSAV_n_ADDRESS_LFSR_ch(channel, 1)) = 0x389abcd; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x20e42; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x20e42; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x4001020 | (MAX(ctrl->tRTP, 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24); MCHBAR32(IOSAV_n_ADDRESS_LFSR_ch(channel, 2)) = 0x389abcd; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x20e42; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x20e42; /* DRAM command PRE */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xf1001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xf1001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x240; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -2237,8 +2105,8 @@ static int test_320c(ramctr_timing *ctrl, int channel, int slotrank) static void fill_pattern5(ramctr_timing *ctrl, int channel, int patno) { unsigned int i, j; - unsigned int channel_offset = get_precedening_channels(ctrl, channel) * 0x40; - unsigned int channel_step = 0x40 * num_of_channels(ctrl); + unsigned int offset = get_precedening_channels(ctrl, channel) * 0x40; + unsigned int step = 0x40 * num_of_channels(ctrl); if (patno) { u8 base8 = 0x80 >> ((patno - 1) % 8); @@ -2246,18 +2114,19 @@ static void fill_pattern5(ramctr_timing *ctrl, int channel, int patno) for (i = 0; i < 32; i++) { for (j = 0; j < 16; j++) { u32 val = use_base[patno - 1][i] & (1 << (j / 2)) ? base : 0; + if (invert[patno - 1][i] & (1 << (j / 2))) val = ~val; - write32((void *)(0x04000000 + channel_offset + i * channel_step + - j * 4), val); + + write32((void *)((1 << 26) + offset + i * step + j * 4), val); } } - } else { - for (i = 0; i < sizeof(pattern) / sizeof(pattern[0]); i++) { - for (j = 0; j < 16; j++) - write32((void *)(0x04000000 + channel_offset + i * channel_step + - j * 4), pattern[i][j]); + for (i = 0; i < ARRAY_SIZE(pattern); i++) { + for (j = 0; j < 16; j++) { + const u32 val = pattern[i][j]; + write32((void *)((1 << 26) + offset + i * step + j * 4), val); + } } sfence(); } @@ -2270,16 +2139,16 @@ static void reprogram_320c(ramctr_timing *ctrl) FOR_ALL_POPULATED_CHANNELS { wait_for_iosav(channel); - /* choose an existing rank. */ + /* Choose an existing rank */ slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0; /* DRAM command ZQCS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); wait_for_iosav(channel); @@ -2295,20 +2164,21 @@ static void reprogram_320c(ramctr_timing *ctrl) slotrank = !(ctrl->rankmap[channel] & 1) ? 2 : 0; /* DRAM command ZQCS */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0f003; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x41001; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0f003; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x41001; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x3e0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x3e0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(1); wait_for_iosav(channel); } - /* jedec reset */ + /* JEDEC reset */ dram_jedecreset(ctrl); - /* mrs commands. */ + + /* MRS commands */ dram_mrscommands(ctrl); toggle_io_reset(); @@ -2333,12 +2203,12 @@ static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch) ctrl->cmd_stretch[channel] = cmd_stretch; MCHBAR32(TC_RAP_ch(channel)) = - ctrl->tRRD - | (ctrl->tRTP << 4) - | (ctrl->tCKE << 8) + (ctrl->tRRD << 0) + | (ctrl->tRTP << 4) + | (ctrl->tCKE << 8) | (ctrl->tWTR << 12) | (ctrl->tFAW << 16) - | (ctrl->tWR << 24) + | (ctrl->tWR << 24) | (ctrl->cmd_stretch[channel] << 30); if (ctrl->cmd_stretch[channel] == 2) @@ -2361,11 +2231,12 @@ static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch) } } FOR_ALL_POPULATED_RANKS { - struct run rn = - get_longest_zero_run(stat[slotrank], 255); + struct run rn = get_longest_zero_run(stat[slotrank], 255); + ctrl->timings[channel][slotrank].pi_coding = rn.middle - 127; printram("cmd_stretch: %d, %d: 0x%02x-0x%02x-0x%02x\n", channel, slotrank, rn.start, rn.middle, rn.end); + if (rn.all || rn.length < MIN_C320C_LEN) { FOR_ALL_POPULATED_RANKS { ctrl->timings[channel][slotrank] = @@ -2378,9 +2249,10 @@ static int try_cmd_stretch(ramctr_timing *ctrl, int channel, int cmd_stretch) return 0; } -/* Adjust CMD phase shift and try multiple command rates. - * A command rate of 2T doubles the time needed for address and - * command decode. */ +/* + * Adjust CMD phase shift and try multiple command rates. + * A command rate of 2T doubles the time needed for address and command decode. + */ int command_training(ramctr_timing *ctrl) { int channel; @@ -2395,12 +2267,12 @@ int command_training(ramctr_timing *ctrl) /* * Dual DIMM per channel: - * Issue: While c320c discovery seems to succeed raminit - * will fail in write training. - * Workaround: Skip 1T in dual DIMM mode, that's only - * supported by a few DIMMs. - * Only try 1T mode for XMP DIMMs that request it in dual DIMM - * mode. + * Issue: + * While c320c discovery seems to succeed raminit will fail in write training. + * + * Workaround: + * Skip 1T in dual DIMM mode, that's only supported by a few DIMMs. + * Only try 1T mode for XMP DIMMs that request it in dual DIMM mode. * * Single DIMM per channel: * Try command rate 1T and 2T @@ -2432,16 +2304,15 @@ int command_training(ramctr_timing *ctrl) return 0; } - static int discover_edges_real(ramctr_timing *ctrl, int channel, int slotrank, int *edges) { int edge; - int statistics[NUM_LANES][MAX_EDGE_TIMING + 1]; + int stats[NUM_LANES][MAX_EDGE_TIMING + 1]; int lane; for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) { FOR_ALL_LANES { - ctrl->timings[channel][slotrank].lanes[lane].rising = edge; + ctrl->timings[channel][slotrank].lanes[lane].rising = edge; ctrl->timings[channel][slotrank].lanes[lane].falling = edge; } program_timings(ctrl, channel); @@ -2452,54 +2323,55 @@ static int discover_edges_real(ramctr_timing *ctrl, int channel, int slotrank, i } wait_for_iosav(channel); + /* DRAM command MRS - * write MR3 MPR enable - * in this mode only RD and RDA are allowed - * all reads return a predefined pattern */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); + write MR3 MPR enable + in this mode only RD and RDA are allowed + all reads return a predefined pattern */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x40411f4; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x40411f4; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; /* DRAM command MRS - * MR3 disable MPR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); + MR3 disable MPR */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); FOR_ALL_LANES { - statistics[lane][edge] = - MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); + stats[lane][edge] = MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); } } + FOR_ALL_LANES { - struct run rn = get_longest_zero_run(statistics[lane], MAX_EDGE_TIMING + 1); + struct run rn = get_longest_zero_run(stats[lane], MAX_EDGE_TIMING + 1); edges[lane] = rn.middle; + if (rn.all) { - printk(BIOS_EMERG, "edge discovery failed: %d, %d, %d\n", - channel, slotrank, lane); + printk(BIOS_EMERG, "edge discovery failed: %d, %d, %d\n", channel, + slotrank, lane); return MAKE_ERR; } - printram("eval %d, %d, %d: %02x\n", channel, slotrank, - lane, edges[lane]); + printram("eval %d, %d, %d: %02x\n", channel, slotrank, lane, edges[lane]); } return 0; } @@ -2537,41 +2409,41 @@ int discover_edges(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command MRS - * MR3 enable MPR - * write MR3 MPR enable - * in this mode only RD and RDA are allowed - * all reads return a predefined pattern */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MR3 enable MPR + write MR3 MPR enable + in this mode only RD and RDA are allowed + all reads return a predefined pattern */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; /* DRAM command MRS * MR3 disable MPR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -2581,7 +2453,7 @@ int discover_edges(ramctr_timing *ctrl) FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { ctrl->timings[channel][slotrank].lanes[lane].falling = 48; - ctrl->timings[channel][slotrank].lanes[lane].rising = 48; + ctrl->timings[channel][slotrank].lanes[lane].rising = 48; } program_timings(ctrl, channel); @@ -2590,42 +2462,42 @@ int discover_edges(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command MRS - * MR3 enable MPR - * write MR3 MPR enable - * in this mode only RD and RDA are allowed - * all reads return a predefined pattern */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MR3 enable MPR + write MR3 MPR enable + in this mode only RD and RDA are allowed + all reads return a predefined pattern */ + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x360004; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x4041003; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x4041003; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x1001 | ((ctrl->CAS + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0; /* DRAM command MRS * MR3 disable MPR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f000; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f000; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tMOD << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x360000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -2682,12 +2554,11 @@ int discover_edges(ramctr_timing *ctrl) return 0; } -static int discover_edges_write_real(ramctr_timing *ctrl, int channel, - int slotrank, int *edges) +static int discover_edges_write_real(ramctr_timing *ctrl, int channel, int slotrank, int *edges) { int edge; - u32 raw_statistics[MAX_EDGE_TIMING + 1]; - int statistics[MAX_EDGE_TIMING + 1]; + u32 raw_stats[MAX_EDGE_TIMING + 1]; + int stats[MAX_EDGE_TIMING + 1]; const int reg3000b24[] = { 0, 0xc, 0x2c }; int lane, i; int lower[NUM_LANES]; @@ -2701,12 +2572,13 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel, for (i = 0; i < 3; i++) { MCHBAR32(GDCRTRAININGMOD_ch(channel)) = reg3000b24[i] << 24; - printram("[%x] = 0x%08x\n", - GDCRTRAININGMOD_ch(channel), reg3000b24[i] << 24); + printram("[%x] = 0x%08x\n", GDCRTRAININGMOD_ch(channel), reg3000b24[i] << 24); + for (pat = 0; pat < NUM_PATTERNS; pat++) { fill_pattern5(ctrl, channel, pat); MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; printram("using pattern %d\n", pat); + for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) { FOR_ALL_LANES { ctrl->timings[channel][slotrank].lanes[lane]. @@ -2723,68 +2595,70 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel, wait_for_iosav(channel); /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x1f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x4 | (ctrl->tRCD << 16) | (MAX(ctrl->tRRD, (ctrl->tFAW >> 2) + 1) << 10); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x240; /* DRAM command WR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f201; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x8005020 | + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x8005020 | ((ctrl->tWTR + ctrl->CWL + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x242; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x4005020 | (MAX(ctrl->tRTP, 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; /* DRAM command PRE */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0xc01 | (ctrl->tRP << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue - MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = - IOSAV_RUN_ONCE(4); + /* Execute command queue */ + MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); FOR_ALL_LANES { MCHBAR32(IOSAV_By_ERROR_COUNT_ch(channel, lane)); } - raw_statistics[edge] = MCHBAR32(0x436c + channel * 0x400); + /* FIXME: This register only exists on Ivy Bridge */ + raw_stats[edge] = MCHBAR32(0x436c + channel * 0x400); } + FOR_ALL_LANES { struct run rn; for (edge = 0; edge <= MAX_EDGE_TIMING; edge++) - statistics[edge] = - ! !(raw_statistics[edge] & (1 << lane)); - rn = get_longest_zero_run(statistics, - MAX_EDGE_TIMING + 1); - printram("edges: %d, %d, %d: 0x%02x-0x%02x-0x%02x, 0x%02x-0x%02x\n", - channel, slotrank, i, rn.start, rn.middle, - rn.end, rn.start + ctrl->edge_offset[i], + stats[edge] = !!(raw_stats[edge] & (1 << lane)); + + rn = get_longest_zero_run(stats, MAX_EDGE_TIMING + 1); + + printram("edges: %d, %d, %d: 0x%02x-0x%02x-0x%02x, " + "0x%02x-0x%02x\n", channel, slotrank, i, rn.start, + rn.middle, rn.end, rn.start + ctrl->edge_offset[i], rn.end - ctrl->edge_offset[i]); - lower[lane] = - MAX(rn.start + ctrl->edge_offset[i], lower[lane]); - upper[lane] = - MIN(rn.end - ctrl->edge_offset[i], upper[lane]); + + lower[lane] = MAX(rn.start + ctrl->edge_offset[i], lower[lane]); + upper[lane] = MIN(rn.end - ctrl->edge_offset[i], upper[lane]); + edges[lane] = (lower[lane] + upper[lane]) / 2; if (rn.all || (lower[lane] > upper[lane])) { - printk(BIOS_EMERG, "edge write discovery failed: %d, %d, %d\n", - channel, slotrank, lane); + printk(BIOS_EMERG, "edge write discovery failed: " + "%d, %d, %d\n", channel, slotrank, lane); + return MAKE_ERR; } } @@ -2799,17 +2673,19 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel, int discover_edges_write(ramctr_timing *ctrl) { int falling_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; - int rising_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; - int channel, slotrank, lane; - int err; + int rising_edges[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; + int channel, slotrank, lane, err; - /* FIXME: under some conditions (older chipsets?) vendor BIOS sets both edges to the same value. */ + /* + * FIXME: Under some conditions, vendor BIOS sets both edges to the same value. It will + * also use a single loop. It would seem that it is a debugging configuration. + */ MCHBAR32(IOSAV_DC_MASK) = 0x300; printram("discover falling edges write:\n[%x] = %x\n", IOSAV_DC_MASK, 0x300); FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { err = discover_edges_write_real(ctrl, channel, slotrank, - falling_edges[channel][slotrank]); + falling_edges[channel][slotrank]); if (err) return err; } @@ -2819,7 +2695,7 @@ int discover_edges_write(ramctr_timing *ctrl) FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS { err = discover_edges_write_real(ctrl, channel, slotrank, - rising_edges[channel][slotrank]); + rising_edges[channel][slotrank]); if (err) return err; } @@ -2828,9 +2704,10 @@ int discover_edges_write(ramctr_timing *ctrl) FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { ctrl->timings[channel][slotrank].lanes[lane].falling = - falling_edges[channel][slotrank][lane]; + falling_edges[channel][slotrank][lane]; + ctrl->timings[channel][slotrank].lanes[lane].rising = - rising_edges[channel][slotrank][lane]; + rising_edges[channel][slotrank][lane]; } FOR_ALL_POPULATED_CHANNELS @@ -2845,34 +2722,34 @@ int discover_edges_write(ramctr_timing *ctrl) static void test_timC_write(ramctr_timing *ctrl, int channel, int slotrank) { wait_for_iosav(channel); + /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x1f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0001f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = (MAX((ctrl->tFAW >> 2) + 1, ctrl->tRRD) << 10) | (ctrl->tRCD << 16) | 4; - MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = - (slotrank << 24) | 0x60000; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x244; + MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = (slotrank << 24) | 0x60000; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x0244; /* DRAM command WR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x1f201; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x1f201; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x80011e0 | ((ctrl->tWTR + ctrl->CWL + 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x242; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x1f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x40011e0 | (MAX(ctrl->tRTP, 8) << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x1f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x40011e0 | (MAX(ctrl->tRTP, 8) << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x242; /* DRAM command PRE */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x1f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0x1001 | (ctrl->tRP << 16); + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x1f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x1001 | (ctrl->tRP << 16); MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = (slotrank << 24) | 0x60400; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -2880,7 +2757,7 @@ static void test_timC_write(ramctr_timing *ctrl, int channel, int slotrank) int discover_timC_write(ramctr_timing *ctrl) { - const u8 rege3c_b24[3] = { 0, 0xf, 0x2f }; + const u8 rege3c_b24[3] = { 0, 0x0f, 0x2f }; int i, pat; int lower[NUM_CHANNELS][NUM_SLOTRANKS][NUM_LANES]; @@ -2901,53 +2778,65 @@ int discover_timC_write(ramctr_timing *ctrl) for (i = 0; i < 3; i++) FOR_ALL_POPULATED_CHANNELS { - MCHBAR32_AND_OR(GDCRCMDDEBUGMUXCFG_Cz_S(channel), ~0x3f000000, - rege3c_b24[i] << 24); + + /* FIXME: Setting the Write VREF must only be done on Ivy Bridge */ + MCHBAR32_AND_OR(GDCRCMDDEBUGMUXCFG_Cz_S(channel), + ~0x3f000000, rege3c_b24[i] << 24); + udelay(2); + for (pat = 0; pat < NUM_PATTERNS; pat++) { FOR_ALL_POPULATED_RANKS { int timC; - u32 raw_statistics[MAX_TIMC + 1]; - int statistics[MAX_TIMC + 1]; + u32 raw_stats[MAX_TIMC + 1]; + int stats[MAX_TIMC + 1]; /* Make sure rn.start < rn.end */ - statistics[MAX_TIMC] = 1; + stats[MAX_TIMC] = 1; fill_pattern5(ctrl, channel, pat); - MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = - 0x1f; + MCHBAR32(IOSAV_DATA_CTL_ch(channel)) = 0x1f; + for (timC = 0; timC < MAX_TIMC; timC++) { - FOR_ALL_LANES - ctrl->timings[channel][slotrank].lanes[lane].timC = timC; + FOR_ALL_LANES { + ctrl->timings[channel][slotrank] + .lanes[lane].timC = timC; + } program_timings(ctrl, channel); test_timC_write (ctrl, channel, slotrank); - raw_statistics[timC] = + /* FIXME: Another IVB-only register! */ + raw_stats[timC] = MCHBAR32(0x436c + channel * 0x400); } FOR_ALL_LANES { struct run rn; - for (timC = 0; timC < MAX_TIMC; timC++) - statistics[timC] = - !!(raw_statistics[timC] & - (1 << lane)); + for (timC = 0; timC < MAX_TIMC; timC++) { + stats[timC] = !!(raw_stats[timC] + & (1 << lane)); + } - rn = get_longest_zero_run(statistics, - MAX_TIMC + 1); + rn = get_longest_zero_run(stats, MAX_TIMC + 1); if (rn.all) { - printk(BIOS_EMERG, "timC write discovery failed: %d, %d, %d\n", - channel, slotrank, lane); + printk(BIOS_EMERG, + "timC write discovery failed: " + "%d, %d, %d\n", channel, + slotrank, lane); + return MAKE_ERR; } - printram("timC: %d, %d, %d: 0x%02x-0x%02x-0x%02x, 0x%02x-0x%02x\n", - channel, slotrank, i, rn.start, - rn.middle, rn.end, + printram("timC: %d, %d, %d: " + "0x%02x-0x%02x-0x%02x, " + "0x%02x-0x%02x\n", channel, slotrank, + i, rn.start, rn.middle, rn.end, rn.start + ctrl->timC_offset[i], - rn.end - ctrl->timC_offset[i]); + rn.end - ctrl->timC_offset[i]); + lower[channel][slotrank][lane] = MAX(rn.start + ctrl->timC_offset[i], lower[channel][slotrank][lane]); + upper[channel][slotrank][lane] = MIN(rn.end - ctrl->timC_offset[i], upper[channel][slotrank][lane]); @@ -2958,6 +2847,7 @@ int discover_timC_write(ramctr_timing *ctrl) } FOR_ALL_CHANNELS { + /* FIXME: Setting the Write VREF must only be done on Ivy Bridge */ MCHBAR32_AND(GDCRCMDDEBUGMUXCFG_Cz_S(channel), ~0x3f000000); udelay(2); } @@ -2971,10 +2861,10 @@ int discover_timC_write(ramctr_timing *ctrl) printram("CPB\n"); FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES { - printram("timC %d, %d, %d: %x\n", channel, - slotrank, lane, + printram("timC %d, %d, %d: %x\n", channel, slotrank, lane, (lower[channel][slotrank][lane] + upper[channel][slotrank][lane]) / 2); + ctrl->timings[channel][slotrank].lanes[lane].timC = (lower[channel][slotrank][lane] + upper[channel][slotrank][lane]) / 2; @@ -3049,30 +2939,30 @@ int channel_test(ramctr_timing *ctrl) wait_for_iosav(channel); /* DRAM command ACT */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 0)) = 0x0001f006; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 0)) = 0x0028a004; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 0)) = 0x0001f006; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 0)) = 0x0028a004; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 0)) = 0x00060000 | (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 0)) = 0x00000244; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 0)) = 0x00000244; /* DRAM command WR */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 1)) = 0x0001f201; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 1)) = 0x08281064; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 1)) = 0x0001f201; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 1)) = 0x08281064; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 1)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 1)) = 0x00000242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 1)) = 0x00000242; /* DRAM command RD */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 2)) = 0x0001f105; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 2)) = 0x04281064; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 2)) = 0x0001f105; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 2)) = 0x04281064; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 2)) = slotrank << 24; - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 2)) = 0x00000242; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 2)) = 0x00000242; /* DRAM command PRE */ - MCHBAR32(IOSAV_n_SP_CMD_CTL_ch(channel, 3)) = 0x0001f002; - MCHBAR32(IOSAV_n_SUBSEQ_CTL_ch(channel, 3)) = 0x00280c01; + MCHBAR32(IOSAV_n_SP_CMD_CTRL_ch(channel, 3)) = 0x0001f002; + MCHBAR32(IOSAV_n_SUBSEQ_CTRL_ch(channel, 3)) = 0x00280c01; MCHBAR32(IOSAV_n_SP_CMD_ADDR_ch(channel, 3)) = 0x00060400 | (slotrank << 24); - MCHBAR32(IOSAV_n_ADDR_UPD_ch(channel, 3)) = 0x00000240; + MCHBAR32(IOSAV_n_ADDR_UPDATE_ch(channel, 3)) = 0x00000240; - // execute command queue + /* Execute command queue */ MCHBAR32(IOSAV_SEQ_CTL_ch(channel)) = IOSAV_RUN_ONCE(4); wait_for_iosav(channel); @@ -3090,29 +2980,27 @@ void set_scrambling_seed(ramctr_timing *ctrl) { int channel; - /* FIXME: we hardcode seeds. Do we need to use some PRNG for them? - I don't think so. */ + /* FIXME: we hardcode seeds. Do we need to use some PRNG for them? I don't think so. */ static u32 seeds[NUM_CHANNELS][3] = { {0x00009a36, 0xbafcfdcf, 0x46d1ab68}, {0x00028bfa, 0x53fe4b49, 0x19ed5483} }; FOR_ALL_POPULATED_CHANNELS { MCHBAR32(SCHED_CBIT_ch(channel)) &= ~0x10000000; - MCHBAR32(SCRAMBLING_SEED_1_ch(channel)) = seeds[channel][0]; - MCHBAR32(SCRAMBLING_SEED_2_HIGH_ch(channel)) = seeds[channel][1]; - MCHBAR32(SCRAMBLING_SEED_2_LOW_ch(channel)) = seeds[channel][2]; + MCHBAR32(SCRAMBLING_SEED_1_ch(channel)) = seeds[channel][0]; + MCHBAR32(SCRAMBLING_SEED_2_HI_ch(channel)) = seeds[channel][1]; + MCHBAR32(SCRAMBLING_SEED_2_LO_ch(channel)) = seeds[channel][2]; } } -void set_4f8c(void) +void set_wmm_behavior(void) { - u32 cpu; + u32 cpu = cpu_get_cpuid(); - cpu = cpu_get_cpuid(); if (IS_SANDY_CPU(cpu) && (IS_SANDY_CPU_D0(cpu) || IS_SANDY_CPU_D1(cpu))) { - MCHBAR32(SC_WDBWM) = 0x141D1519; + MCHBAR32(SC_WDBWM) = 0x141d1519; } else { - MCHBAR32(SC_WDBWM) = 0x551D1519; + MCHBAR32(SC_WDBWM) = 0x551d1519; } } @@ -3121,7 +3009,7 @@ void prepare_training(ramctr_timing *ctrl) int channel; FOR_ALL_POPULATED_CHANNELS { - // Always drive command bus + /* Always drive command bus */ MCHBAR32_OR(TC_RAP_ch(channel), 0x20000000); } @@ -3132,7 +3020,7 @@ void prepare_training(ramctr_timing *ctrl) } } -void set_4008c(ramctr_timing *ctrl) +void set_read_write_timings(ramctr_timing *ctrl) { int channel, slotrank; @@ -3146,20 +3034,13 @@ void set_4008c(ramctr_timing *ctrl) min_pi = MIN(ctrl->timings[channel][slotrank].pi_coding, min_pi); } - if (max_pi - min_pi > 51) - b20 = 0; - else - b20 = ctrl->ref_card_offset[channel]; + b20 = (max_pi - min_pi > 51) ? 0 : ctrl->ref_card_offset[channel]; - if (ctrl->pi_coding_threshold < max_pi - min_pi) - b4_8_12 = 0x3330; - else - b4_8_12 = 0x2220; + b4_8_12 = (ctrl->pi_coding_threshold < max_pi - min_pi) ? 0x3330 : 0x2220; dram_odt_stretch(ctrl, channel); - MCHBAR32(TC_RWP_ch(channel)) = - 0x0a000000 | (b20 << 20) | + MCHBAR32(TC_RWP_ch(channel)) = 0x0a000000 | (b20 << 20) | ((ctrl->ref_card_offset[channel] + 2) << 16) | b4_8_12; } } @@ -3173,12 +3054,13 @@ void set_normal_operation(ramctr_timing *ctrl) } } -static int encode_5d10(int ns) +/* Encode the watermark latencies in a suitable format for graphics drivers consumption */ +static int encode_wm(int ns) { return (ns + 499) / 500; } -/* FIXME: values in this function should be hardware revision-dependent. */ +/* FIXME: values in this function should be hardware revision-dependent */ void final_registers(ramctr_timing *ctrl) { const size_t is_mobile = get_platform_type() == PLATFORM_MOBILE; @@ -3188,17 +3070,17 @@ void final_registers(ramctr_timing *ctrl) int t3_ns; u32 r32; - /* FIXME: This register only exists on Ivy Bridge. */ - MCHBAR32(WMM_READ_CONFIG) = 0x00000046; + /* FIXME: This register only exists on Ivy Bridge */ + MCHBAR32(WMM_READ_CONFIG) = 0x46; FOR_ALL_CHANNELS - MCHBAR32_AND_OR(TC_OTHP_ch(channel), 0xFFFFCFFF, 0x1000); + MCHBAR32_AND_OR(TC_OTHP_ch(channel), 0xffffcfff, 0x1000); if (is_mobile) /* APD - DLL Off, 64 DCLKs until idle, decision per rank */ MCHBAR32(PM_PDWN_CONFIG) = 0x00000740; else - /* APD - PPD, 64 DCLKs until idle, decision per rank */ + /* APD - PPD, 64 DCLKs until idle, decision per rank */ MCHBAR32(PM_PDWN_CONFIG) = 0x00000340; FOR_ALL_CHANNELS @@ -3209,75 +3091,76 @@ void final_registers(ramctr_timing *ctrl) FOR_ALL_CHANNELS { switch (ctrl->rankmap[channel]) { - /* Unpopulated channel. */ + /* Unpopulated channel */ case 0: MCHBAR32(PM_CMD_PWR_ch(channel)) = 0; break; - /* Only single-ranked dimms. */ + /* Only single-ranked dimms */ case 1: case 4: case 5: - MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x373131; + MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x00373131; break; - /* Dual-ranked dimms present. */ + /* Dual-ranked dimms present */ default: - MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x9b6ea1; + MCHBAR32(PM_CMD_PWR_ch(channel)) = 0x009b6ea1; break; } } MCHBAR32(MEM_TRML_ESTIMATION_CONFIG) = 0xca9171e5; - MCHBAR32_AND_OR(MEM_TRML_THRESHOLDS_CONFIG, ~0xffffff, 0xe4d5d0); + MCHBAR32_AND_OR(MEM_TRML_THRESHOLDS_CONFIG, ~0x00ffffff, 0x00e4d5d0); MCHBAR32_AND(MEM_TRML_INTERRUPT, ~0x1f); FOR_ALL_CHANNELS - MCHBAR32_AND_OR(TC_RFP_ch(channel), ~0x30000, 1 << 16); + MCHBAR32_AND_OR(TC_RFP_ch(channel), ~(3 << 16), 1 << 16); MCHBAR32_OR(MC_INIT_STATE_G, 1); MCHBAR32_OR(MC_INIT_STATE_G, 0x80); MCHBAR32(BANDTIMERS_SNB) = 0xfa; - /* Find a populated channel. */ + /* Find a populated channel */ FOR_ALL_POPULATED_CHANNELS break; t1_cycles = (MCHBAR32(TC_ZQCAL_ch(channel)) >> 8) & 0xff; r32 = MCHBAR32(PM_DLL_CONFIG); - if (r32 & 0x20000) + if (r32 & (1 << 17)) t1_cycles += (r32 & 0xfff); t1_cycles += MCHBAR32(TC_SRFTP_ch(channel)) & 0xfff; t1_ns = t1_cycles * ctrl->tCK / 256 + 544; - if (!(r32 & 0x20000)) + if (!(r32 & (1 << 17))) t1_ns += 500; t2_ns = 10 * ((MCHBAR32(SAPMTIMERS) >> 8) & 0xfff); if (MCHBAR32(SAPMCTL) & 8) { - t3_ns = 10 * ((MCHBAR32(BANDTIMERS_IVB) >> 8) & 0xfff); + t3_ns = 10 * ((MCHBAR32(BANDTIMERS_IVB) >> 8) & 0xfff); t3_ns += 10 * (MCHBAR32(SAPMTIMERS2_IVB) & 0xff); } else { t3_ns = 500; } - printk(BIOS_DEBUG, "t123: %d, %d, %d\n", - t1_ns, t2_ns, t3_ns); - MCHBAR32_AND_OR(0x5d10, 0xC0C0C0C0, - ((encode_5d10(t1_ns) + encode_5d10(t2_ns)) << 16) | - (encode_5d10(t1_ns) << 8) | ((encode_5d10(t3_ns) + - encode_5d10(t2_ns) + encode_5d10(t1_ns)) << 24) | 0xc); + + /* The graphics driver will use these watermark values */ + printk(BIOS_DEBUG, "t123: %d, %d, %d\n", t1_ns, t2_ns, t3_ns); + MCHBAR32_AND_OR(SSKPD, 0xC0C0C0C0, + ((encode_wm(t1_ns) + encode_wm(t2_ns)) << 16) | (encode_wm(t1_ns) << 8) | + ((encode_wm(t3_ns) + encode_wm(t2_ns) + encode_wm(t1_ns)) << 24) | 0x0c); } void restore_timings(ramctr_timing *ctrl) { int channel, slotrank, lane; - FOR_ALL_POPULATED_CHANNELS - MCHBAR32(TC_RAP_ch(channel)) = - ctrl->tRRD - | (ctrl->tRTP << 4) - | (ctrl->tCKE << 8) - | (ctrl->tWTR << 12) - | (ctrl->tFAW << 16) - | (ctrl->tWR << 24) - | (ctrl->cmd_stretch[channel] << 30); + FOR_ALL_POPULATED_CHANNELS { + MCHBAR32(TC_RAP_ch(channel)) = + (ctrl->tRRD << 0) + | (ctrl->tRTP << 4) + | (ctrl->tCKE << 8) + | (ctrl->tWTR << 12) + | (ctrl->tFAW << 16) + | (ctrl->tWR << 24) + | (ctrl->cmd_stretch[channel] << 30); + } udelay(1); @@ -3290,11 +3173,11 @@ void restore_timings(ramctr_timing *ctrl) } FOR_ALL_POPULATED_CHANNELS - MCHBAR32_OR(TC_RWP_ch(channel), 0x8000000); + MCHBAR32_OR(TC_RWP_ch(channel), 0x08000000); FOR_ALL_POPULATED_CHANNELS { - udelay (1); - MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x200000); + udelay(1); + MCHBAR32_OR(SCHED_CBIT_ch(channel), 0x00200000); } printram("CPE\n"); @@ -3310,36 +3193,39 @@ void restore_timings(ramctr_timing *ctrl) u32 reg, addr; - while (!(MCHBAR32(RCOMP_TIMER) & 0x10000)); + /* Poll for RCOMP */ + while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16))) + ; + do { reg = MCHBAR32(IOSAV_STATUS_ch(0)); } while ((reg & 0x14) == 0); - // Set state of memory controller + /* Set state of memory controller */ MCHBAR32(MC_INIT_STATE_G) = 0x116; - MCHBAR32(MC_INIT_STATE) = 0; + MCHBAR32(MC_INIT_STATE) = 0; - // Wait 500us + /* Wait 500us */ udelay(500); FOR_ALL_CHANNELS { - // Set valid rank CKE + /* Set valid rank CKE */ reg = 0; - reg = (reg & ~0xf) | ctrl->rankmap[channel]; + reg = (reg & ~0x0f) | ctrl->rankmap[channel]; addr = MC_INIT_STATE_ch(channel); MCHBAR32(addr) = reg; - // Wait 10ns for ranks to settle - //udelay(0.01); + /* Wait 10ns for ranks to settle */ + // udelay(0.01); reg = (reg & ~0xf0) | (ctrl->rankmap[channel] << 4); MCHBAR32(addr) = reg; - // Write reset using a NOP + /* Write reset using a NOP */ write_reset(ctrl); } - /* mrs commands. */ + /* MRS commands */ dram_mrscommands(ctrl); printram("CP5c\n"); diff --git a/src/northbridge/intel/sandybridge/raminit_common.h b/src/northbridge/intel/sandybridge/raminit_common.h index b1abf5e83a..0735ceaa8f 100644 --- a/src/northbridge/intel/sandybridge/raminit_common.h +++ b/src/northbridge/intel/sandybridge/raminit_common.h @@ -17,29 +17,29 @@ #include <stdint.h> -#define BASEFREQ 133 -#define tDLLK 512 +#define BASEFREQ 133 +#define tDLLK 512 -#define IS_SANDY_CPU(x) ((x & 0xffff0) == 0x206a0) -#define IS_SANDY_CPU_C(x) ((x & 0xf) == 4) +#define IS_SANDY_CPU(x) ((x & 0xffff0) == 0x206a0) +#define IS_SANDY_CPU_C(x) ((x & 0xf) == 4) #define IS_SANDY_CPU_D0(x) ((x & 0xf) == 5) #define IS_SANDY_CPU_D1(x) ((x & 0xf) == 6) #define IS_SANDY_CPU_D2(x) ((x & 0xf) == 7) -#define IS_IVY_CPU(x) ((x & 0xffff0) == 0x306a0) +#define IS_IVY_CPU(x) ((x & 0xffff0) == 0x306a0) #define IS_IVY_CPU_C(x) ((x & 0xf) == 4) #define IS_IVY_CPU_K(x) ((x & 0xf) == 5) #define IS_IVY_CPU_D(x) ((x & 0xf) == 6) #define IS_IVY_CPU_E(x) ((x & 0xf) >= 8) -#define NUM_CHANNELS 2 -#define NUM_SLOTRANKS 4 -#define NUM_SLOTS 2 -#define NUM_LANES 8 +#define NUM_CHANNELS 2 +#define NUM_SLOTRANKS 4 +#define NUM_SLOTS 2 +#define NUM_LANES 8 /* FIXME: Vendor BIOS uses 64 but our algorithms are less performant and even 1 seems to be enough in practice. */ -#define NUM_PATTERNS 4 +#define NUM_PATTERNS 4 typedef struct odtmap_st { u16 rttwr; @@ -51,24 +51,24 @@ typedef struct dimm_info_st { } dimm_info; struct ram_rank_timings { - /* ROUNDT_LAT register. One byte per slotrank. */ + /* ROUNDT_LAT register: One byte per slotrank */ u8 roundtrip_latency; - /* IO_LATENCY register. One nibble per slotrank. */ + /* IO_LATENCY register: One nibble per slotrank */ u8 io_latency; - /* Phase interpolator coding for command and control. */ + /* Phase interpolator coding for command and control */ int pi_coding; struct ram_lane_timings { - /* lane register offset 0x10. */ - u16 timA; /* bits 0 - 5, bits 16 - 18 */ - u8 rising; /* bits 8 - 14 */ - u8 falling; /* bits 20 - 26. */ - - /* lane register offset 0x20. */ - int timC; /* bit 0 - 5, 19. */ - u16 timB; /* bits 8 - 13, 15 - 17. */ + /* Lane register offset 0x10 */ + u16 timA; /* bits 0 - 5, bits 16 - 18 */ + u8 rising; /* bits 8 - 14 */ + u8 falling; /* bits 20 - 26 */ + + /* Lane register offset 0x20 */ + int timC; /* bits 0 - 5, 19 */ + u16 timB; /* bits 8 - 13, 15 - 17 */ } lanes[NUM_LANES]; }; @@ -82,7 +82,7 @@ typedef struct ramctr_timing_st { u8 base_freq; u16 cas_supported; - /* tLatencies are in units of ns, scaled by x256 */ + /* Latencies are in units of ns, scaled by x256 */ u32 tCK; u32 tAA; u32 tWR; @@ -97,8 +97,8 @@ typedef struct ramctr_timing_st { u32 tCWL; u32 tCMD; /* Latencies in terms of clock cycles - * They are saved separately as they are needed for DRAM MRS commands */ - u8 CAS; /* CAS read latency */ + They are saved separately as they are needed for DRAM MRS commands */ + u8 CAS; /* CAS read latency */ u8 CWL; /* CAS write latency */ u32 tREFI; @@ -110,7 +110,7 @@ typedef struct ramctr_timing_st { u32 tXP; u32 tAONPD; - /* Bits [0..11] of PM_DLL_CONFIG: Master DLL wakeup delay timer. */ + /* Bits [0..11] of PM_DLL_CONFIG: Master DLL wakeup delay timer */ u16 mdll_wake_delay; u8 rankmap[NUM_CHANNELS]; @@ -135,7 +135,6 @@ typedef struct ramctr_timing_st { dimm_info info; } ramctr_timing; -#define HOST_BRIDGE PCI_DEV(0, 0, 0) #define SOUTHBRIDGE PCI_DEV(0, 0x1f, 0) #define FOR_ALL_LANES for (lane = 0; lane < NUM_LANES; lane++) @@ -149,8 +148,8 @@ typedef struct ramctr_timing_st { #define MAX_CAS 18 #define MIN_CAS 4 -#define MAKE_ERR ((channel<<16)|(slotrank<<8)|1) -#define GET_ERR_CHANNEL(x) (x>>16) +#define MAKE_ERR ((channel << 16) | (slotrank << 8) | 1) +#define GET_ERR_CHANNEL(x) (x >> 16) u8 get_CWL(u32 tCK); void dram_mrscommands(ramctr_timing *ctrl); @@ -174,17 +173,14 @@ void normalize_training(ramctr_timing *ctrl); void write_controller_mr(ramctr_timing *ctrl); int channel_test(ramctr_timing *ctrl); void set_scrambling_seed(ramctr_timing *ctrl); -void set_4f8c(void); +void set_wmm_behavior(void); void prepare_training(ramctr_timing *ctrl); -void set_4008c(ramctr_timing *ctrl); +void set_read_write_timings(ramctr_timing *ctrl); void set_normal_operation(ramctr_timing *ctrl); void final_registers(ramctr_timing *ctrl); void restore_timings(ramctr_timing *ctrl); -int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, - int s3_resume, int me_uma_size); - -int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, - int s3_resume, int me_uma_size); +int try_init_dram_ddr3_snb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size); +int try_init_dram_ddr3_ivb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size); #endif diff --git a/src/northbridge/intel/sandybridge/raminit_ivy.c b/src/northbridge/intel/sandybridge/raminit_ivy.c index a992d9c98c..06d23825b6 100644 --- a/src/northbridge/intel/sandybridge/raminit_ivy.c +++ b/src/northbridge/intel/sandybridge/raminit_ivy.c @@ -19,12 +19,10 @@ #include "raminit_native.h" #include "raminit_common.h" -/* Frequency multiplier. */ +/* Frequency multiplier */ static u32 get_FRQ(u32 tCK, u8 base_freq) { - u32 FRQ; - - FRQ = 256000 / (tCK * base_freq); + const u32 FRQ = 256000 / (tCK * base_freq); if (base_freq == 100) { if (FRQ > 12) @@ -41,249 +39,181 @@ static u32 get_FRQ(u32 tCK, u8 base_freq) return FRQ; } +/* Get REFI based on MC frequency, tREFI = 7.8usec */ static u32 get_REFI(u32 tCK, u8 base_freq) { - u32 refi; - if (base_freq == 100) { - /* Get REFI based on MCU frequency using the following rule: - * tREFI = 7.8usec - * _________________________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * REFI : | 5460 | 6240 | 7020 | 7800 | 8580 | 9360 | - */ - static const u32 frq_xs_map[] = - { 5460, 6240, 7020, 7800, 8580, 9360 }; - refi = frq_xs_map[get_FRQ(tCK, 100) - 7]; + static const u32 frq_xs_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 5460, 6240, 7020, 7800, 8580, 9360, + }; + return frq_xs_map[get_FRQ(tCK, 100) - 7]; + } else { - /* Get REFI based on MCU frequency using the following rule: - * tREFI = 7.8usec - * ________________________________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * REFI: | 3120 | 4160 | 5200 | 6240 | 7280 | 8320 | 9360 | 10400 | - */ - static const u32 frq_refi_map[] = - { 3120, 4160, 5200, 6240, 7280, 8320, 9360, 10400 }; - refi = frq_refi_map[get_FRQ(tCK, 133) - 3]; + static const u32 frq_refi_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 3120, 4160, 5200, 6240, 7280, 8320, 9360, 10400, + }; + return frq_refi_map[get_FRQ(tCK, 133) - 3]; } - - return refi; } +/* Get XSOffset based on MC frequency, tXS-Offset: tXS = tRFC + 10ns */ static u8 get_XSOffset(u32 tCK, u8 base_freq) { - u8 xsoffset; - if (base_freq == 100) { - /* Get XSOffset based on MCU frequency using the following rule: - * tXS-offset: tXS = tRFC+10ns. - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * XSOffset : | 7 | 8 | 9 | 10 | 11 | 12 | - */ - static const u8 frq_xs_map[] = { 7, 8, 9, 10, 11, 12 }; - xsoffset = frq_xs_map[get_FRQ(tCK, 100) - 7]; + static const u8 frq_xs_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 7, 8, 9, 10, 11, 12, + }; + return frq_xs_map[get_FRQ(tCK, 100) - 7]; + } else { - /* Get XSOffset based on MCU frequency using the following rule: - * ___________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * XSOffset : | 4 | 6 | 7 | 8 | 10 | 11 | 12 | 14 | - */ - static const u8 frq_xs_map[] = { 4, 6, 7, 8, 10, 11, 12, 14 }; - xsoffset = frq_xs_map[get_FRQ(tCK, 133) - 3]; + static const u8 frq_xs_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 4, 6, 7, 8, 10, 11, 12, 14, + }; + return frq_xs_map[get_FRQ(tCK, 133) - 3]; } - - return xsoffset; } +/* Get MOD based on MC frequency */ static u8 get_MOD(u32 tCK, u8 base_freq) { - u8 mod; - if (base_freq == 100) { - /* Get MOD based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * MOD : | 12 | 12 | 14 | 15 | 17 | 18 | - */ + static const u8 frq_mod_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 12, 12, 14, 15, 17, 18, + }; + return frq_mod_map[get_FRQ(tCK, 100) - 7]; - static const u8 frq_mod_map[] = { 12, 12, 14, 15, 17, 18 }; - mod = frq_mod_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get MOD based on MCU frequency using the following rule: - * _______________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * MOD : | 12 | 12 | 12 | 12 | 15 | 16 | 18 | 20 | - */ - - static const u8 frq_mod_map[] = { 12, 12, 12, 12, 15, 16, 18, 20 }; - mod = frq_mod_map[get_FRQ(tCK, 133) - 3]; + static const u8 frq_mod_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 12, 12, 12, 12, 15, 16, 18, 20, + }; + return frq_mod_map[get_FRQ(tCK, 133) - 3]; } - return mod; } +/* Get Write Leveling Output delay based on MC frequency */ static u8 get_WLO(u32 tCK, u8 base_freq) { - u8 wlo; - if (base_freq == 100) { - /* Get WLO based on MCU frequency using the following rule: - * Write leveling output delay - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * MOD : | 6 | 6 | 7 | 8 | 9 | 9 | - */ + static const u8 frq_wlo_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 6, 6, 7, 8, 9, 9, + }; + return frq_wlo_map[get_FRQ(tCK, 100) - 7]; - static const u8 frq_wlo_map[] = { 6, 6, 7, 8, 9, 9 }; - wlo = frq_wlo_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get WLO based on MCU frequency using the following rule: - * Write leveling output delay - * ________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * WLO : | 4 | 5 | 6 | 6 | 8 | 8 | 9 | 10 | - */ - static const u8 frq_wlo_map[] = { 4, 5, 6, 6, 8, 8, 9, 10 }; - wlo = frq_wlo_map[get_FRQ(tCK, 133) - 3]; + static const u8 frq_wlo_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 4, 5, 6, 6, 8, 8, 9, 10, + }; + return frq_wlo_map[get_FRQ(tCK, 133) - 3]; } - - return wlo; } +/* Get CKE based on MC frequency */ static u8 get_CKE(u32 tCK, u8 base_freq) { - u8 cke; - if (base_freq == 100) { - /* Get CKE based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * MOD : | 4 | 4 | 5 | 5 | 6 | 6 | - */ + static const u8 frq_cke_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 4, 4, 5, 5, 6, 6, + }; + return frq_cke_map[get_FRQ(tCK, 100) - 7]; - static const u8 frq_cke_map[] = { 4, 4, 5, 5, 6, 6 }; - cke = frq_cke_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get CKE based on MCU frequency using the following rule: - * ________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * WLO : | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | - */ - static const u8 frq_cke_map[] = { 3, 3, 4, 4, 5, 6, 6, 7 }; - cke = frq_cke_map[get_FRQ(tCK, 133) - 3]; + static const u8 frq_cke_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 3, 3, 4, 4, 5, 6, 6, 7, + }; + return frq_cke_map[get_FRQ(tCK, 133) - 3]; } - - return cke; } +/* Get XPDLL based on MC frequency */ static u8 get_XPDLL(u32 tCK, u8 base_freq) { - u8 xpdll; - if (base_freq == 100) { - /* Get XPDLL based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * XPDLL : | 17 | 20 | 22 | 24 | 27 | 32 | - */ + static const u8 frq_xpdll_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 17, 20, 22, 24, 27, 32, + }; + return frq_xpdll_map[get_FRQ(tCK, 100) - 7]; - static const u8 frq_xpdll_map[] = { 17, 20, 22, 24, 27, 32 }; - xpdll = frq_xpdll_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get XPDLL based on MCU frequency using the following rule: - * _______________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * XPDLL : | 10 | 13 | 16 | 20 | 23 | 26 | 29 | 32 | - */ - static const u8 frq_xpdll_map[] = { 10, 13, 16, 20, 23, 26, 29, 32 }; - xpdll = frq_xpdll_map[get_FRQ(tCK, 133) - 3]; + static const u8 frq_xpdll_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 10, 13, 16, 20, 23, 26, 29, 32, + }; + return frq_xpdll_map[get_FRQ(tCK, 133) - 3]; } - - return xpdll; } +/* Get XP based on MC frequency */ static u8 get_XP(u32 tCK, u8 base_freq) { - u8 xp; - if (base_freq == 100) { - /* Get XP based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * XP : | 5 | 5 | 6 | 6 | 7 | 8 | - */ - - static const u8 frq_xp_map[] = { 5, 5, 6, 6, 7, 8 }; - xp = frq_xp_map[get_FRQ(tCK, 100) - 7]; + static const u8 frq_xp_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 5, 5, 6, 6, 7, 8, + }; + return frq_xp_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get XP based on MCU frequency using the following rule: - * _______________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * XP : | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 8 | - */ - static const u8 frq_xp_map[] = { 3, 4, 4, 5, 6, 7, 8, 8 }; - xp = frq_xp_map[get_FRQ(tCK, 133) - 3]; - } - return xp; + static const u8 frq_xp_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 3, 4, 4, 5, 6, 7, 8, 8 + }; + return frq_xp_map[get_FRQ(tCK, 133) - 3]; + } } +/* Get AONPD based on MC frequency */ static u8 get_AONPD(u32 tCK, u8 base_freq) { - u8 aonpd; - if (base_freq == 100) { - /* Get AONPD based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * AONPD : | 6 | 8 | 8 | 9 | 10 | 11 | - */ + static const u8 frq_aonpd_map[] = { + /* FRQ: 7, 8, 9, 10, 11, 12, */ + 6, 8, 8, 9, 10, 11, + }; + return frq_aonpd_map[get_FRQ(tCK, 100) - 7]; - static const u8 frq_aonpd_map[] = { 6, 8, 8, 9, 10, 11 }; - aonpd = frq_aonpd_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get AONPD based on MCU frequency using the following rule: - * _______________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * AONPD : | 4 | 5 | 6 | 8 | 8 | 10 | 11 | 12 | - */ - static const u8 frq_aonpd_map[] = { 4, 5, 6, 8, 8, 10, 11, 12 }; - aonpd = frq_aonpd_map[get_FRQ(tCK, 133) - 3]; + static const u8 frq_aonpd_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, 9, 10, */ + 4, 5, 6, 8, 8, 10, 11, 12, + }; + return frq_aonpd_map[get_FRQ(tCK, 133) - 3]; } - - return aonpd; } +/* Get COMP2 based on MC frequency */ static u32 get_COMP2(u32 tCK, u8 base_freq) { - u32 comp2; - if (base_freq == 100) { - /* Get COMP2 based on MCU frequency using the following rule: - * ______________________________________________________________ - * FRQ : | 7 | 8 | 9 | 10 | 11 | 12 | - * COMP : | CA8C264 | C6671E4 | C6671E4 | C446964 | C235924 | C235924 | - */ + static const u32 frq_comp2_map[] = { + // FRQ: 7, 8, 9, 10, 11, 12, + 0x0CA8C264, 0x0C6671E4, 0x0C6671E4, 0x0C446964, 0x0C235924, 0x0C235924, + }; + return frq_comp2_map[get_FRQ(tCK, 100) - 7]; - static const u32 frq_comp2_map[] = { 0xCA8C264, 0xC6671E4, 0xC6671E4, 0xC446964, 0xC235924, 0xC235924 }; - comp2 = frq_comp2_map[get_FRQ(tCK, 100) - 7]; } else { - /* Get COMP2 based on MCU frequency using the following rule: - * ________________________________________________________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - * COMP : | D6FF5E4 | CEBDB64 | CA8C264 | C6671E4 | C446964 | C235924 | C235924 | C235924 | - */ - static const u32 frq_comp2_map[] = { 0xD6FF5E4, 0xCEBDB64, 0xCA8C264, - 0xC6671E4, 0xC446964, 0xC235924, 0xC235924, 0xC235924 + static const u32 frq_comp2_map[] = { + /* FRQ: 3, 4, 5, 6, */ + 0x0D6FF5E4, 0x0CEBDB64, 0x0CA8C264, 0x0C6671E4, + + /* FRQ: 7, 8, 9, 10, */ + 0x0C446964, 0x0C235924, 0x0C235924, 0x0C235924, }; - comp2 = frq_comp2_map[get_FRQ(tCK, 133) - 3]; + return frq_comp2_map[get_FRQ(tCK, 133) - 3]; } - - return comp2; } -static void ivb_normalize_tclk(ramctr_timing *ctrl, - bool ref_100mhz_support) +static void ivb_normalize_tclk(ramctr_timing *ctrl, bool ref_100mhz_support) { if (ctrl->tCK <= TCK_1200MHZ) { ctrl->tCK = TCK_1200MHZ; @@ -324,7 +254,7 @@ static void ivb_normalize_tclk(ramctr_timing *ctrl, } if (!ref_100mhz_support && ctrl->base_freq == 100) { - /* Skip unsupported frequency. */ + /* Skip unsupported frequency */ ctrl->tCK++; ivb_normalize_tclk(ctrl, ref_100mhz_support); } @@ -333,29 +263,31 @@ static void ivb_normalize_tclk(ramctr_timing *ctrl, static void find_cas_tck(ramctr_timing *ctrl) { u8 val; - u32 val32; u32 reg32; u8 ref_100mhz_support; - /* 100 Mhz reference clock supported */ - reg32 = pci_read_config32(PCI_DEV(0, 0, 0), CAPID0_B); + /* 100 MHz reference clock supported */ + reg32 = pci_read_config32(HOST_BRIDGE, CAPID0_B); ref_100mhz_support = !!((reg32 >> 21) & 0x7); - printk(BIOS_DEBUG, "100MHz reference clock support: %s\n", - ref_100mhz_support ? "yes" : "no"); + printk(BIOS_DEBUG, "100MHz reference clock support: %s\n", ref_100mhz_support ? "yes" + : "no"); /* Find CAS latency */ while (1) { - /* Normalising tCK before computing clock could potentially - * results in lower selected CAS, which is desired. + /* + * Normalising tCK before computing clock could potentially + * result in a lower selected CAS, which is desired. */ ivb_normalize_tclk(ctrl, ref_100mhz_support); if (!(ctrl->tCK)) die("Couldn't find compatible clock / CAS settings\n"); + val = DIV_ROUND_UP(ctrl->tAA, ctrl->tCK); printk(BIOS_DEBUG, "Trying CAS %u, tCK %u.\n", val, ctrl->tCK); for (; val <= MAX_CAS; val++) if ((ctrl->cas_supported >> (val - MIN_CAS)) & 1) break; + if (val == (MAX_CAS + 1)) { ctrl->tCK++; continue; @@ -365,9 +297,7 @@ static void find_cas_tck(ramctr_timing *ctrl) } } - val32 = NS2MHZ_DIV256 / ctrl->tCK; - printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", val32); - + printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", NS2MHZ_DIV256 / ctrl->tCK); printk(BIOS_DEBUG, "Selected CAS latency : %uT\n", val); ctrl->CAS = val; } @@ -375,9 +305,10 @@ static void find_cas_tck(ramctr_timing *ctrl) static void dram_timing(ramctr_timing *ctrl) { - /* Maximum supported DDR3 frequency is 1400MHz (DDR3 2800). - * We cap it at 1200Mhz (DDR3 2400). - * Then, align it to the closest JEDEC standard frequency */ + /* + * On Ivy Bridge, the maximum supported DDR3 frequency is 1400MHz (DDR3 2800). + * Cap it at 1200MHz (DDR3 2400), and align it to the closest JEDEC standard frequency. + */ if (ctrl->tCK == TCK_1200MHZ) { ctrl->edge_offset[0] = 18; //XXX: guessed ctrl->edge_offset[1] = 8; @@ -386,6 +317,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 8; ctrl->timC_offset[2] = 8; ctrl->pi_coding_threshold = 10; + } else if (ctrl->tCK == TCK_1100MHZ) { ctrl->edge_offset[0] = 17; //XXX: guessed ctrl->edge_offset[1] = 7; @@ -394,6 +326,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 7; ctrl->timC_offset[2] = 7; ctrl->pi_coding_threshold = 13; + } else if (ctrl->tCK == TCK_1066MHZ) { ctrl->edge_offset[0] = 16; ctrl->edge_offset[1] = 7; @@ -402,6 +335,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 7; ctrl->timC_offset[2] = 7; ctrl->pi_coding_threshold = 13; + } else if (ctrl->tCK == TCK_1000MHZ) { ctrl->edge_offset[0] = 15; //XXX: guessed ctrl->edge_offset[1] = 6; @@ -410,6 +344,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 6; ctrl->timC_offset[2] = 6; ctrl->pi_coding_threshold = 13; + } else if (ctrl->tCK == TCK_933MHZ) { ctrl->edge_offset[0] = 14; ctrl->edge_offset[1] = 6; @@ -418,6 +353,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 6; ctrl->timC_offset[2] = 6; ctrl->pi_coding_threshold = 15; + } else if (ctrl->tCK == TCK_900MHZ) { ctrl->edge_offset[0] = 14; //XXX: guessed ctrl->edge_offset[1] = 6; @@ -426,6 +362,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 6; ctrl->timC_offset[2] = 6; ctrl->pi_coding_threshold = 12; + } else if (ctrl->tCK == TCK_800MHZ) { ctrl->edge_offset[0] = 13; ctrl->edge_offset[1] = 5; @@ -434,6 +371,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 5; ctrl->timC_offset[2] = 5; ctrl->pi_coding_threshold = 15; + } else if (ctrl->tCK == TCK_700MHZ) { ctrl->edge_offset[0] = 13; //XXX: guessed ctrl->edge_offset[1] = 5; @@ -442,6 +380,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 5; ctrl->timC_offset[2] = 5; ctrl->pi_coding_threshold = 16; + } else if (ctrl->tCK == TCK_666MHZ) { ctrl->edge_offset[0] = 10; ctrl->edge_offset[1] = 4; @@ -450,6 +389,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 4; ctrl->timC_offset[2] = 4; ctrl->pi_coding_threshold = 16; + } else if (ctrl->tCK == TCK_533MHZ) { ctrl->edge_offset[0] = 8; ctrl->edge_offset[1] = 3; @@ -458,6 +398,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 3; ctrl->timC_offset[2] = 3; ctrl->pi_coding_threshold = 17; + } else { /* TCK_400MHZ */ ctrl->edge_offset[0] = 6; ctrl->edge_offset[1] = 2; @@ -478,13 +419,14 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->CWL = DIV_ROUND_UP(ctrl->tCWL, ctrl->tCK); else ctrl->CWL = get_CWL(ctrl->tCK); + printk(BIOS_DEBUG, "Selected CWL latency : %uT\n", ctrl->CWL); /* Find tRCD */ ctrl->tRCD = DIV_ROUND_UP(ctrl->tRCD, ctrl->tCK); printk(BIOS_DEBUG, "Selected tRCD : %uT\n", ctrl->tRCD); - ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK); + ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK); printk(BIOS_DEBUG, "Selected tRP : %uT\n", ctrl->tRP); /* Find tRAS */ @@ -492,7 +434,7 @@ static void dram_timing(ramctr_timing *ctrl) printk(BIOS_DEBUG, "Selected tRAS : %uT\n", ctrl->tRAS); /* Find tWR */ - ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK); + ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK); printk(BIOS_DEBUG, "Selected tWR : %uT\n", ctrl->tWR); /* Find tFAW */ @@ -515,21 +457,22 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK); printk(BIOS_DEBUG, "Selected tRFC : %uT\n", ctrl->tRFC); - ctrl->tREFI = get_REFI(ctrl->tCK, ctrl->base_freq); - ctrl->tMOD = get_MOD(ctrl->tCK, ctrl->base_freq); + ctrl->tREFI = get_REFI(ctrl->tCK, ctrl->base_freq); + ctrl->tMOD = get_MOD(ctrl->tCK, ctrl->base_freq); ctrl->tXSOffset = get_XSOffset(ctrl->tCK, ctrl->base_freq); - ctrl->tWLO = get_WLO(ctrl->tCK, ctrl->base_freq); - ctrl->tCKE = get_CKE(ctrl->tCK, ctrl->base_freq); - ctrl->tXPDLL = get_XPDLL(ctrl->tCK, ctrl->base_freq); - ctrl->tXP = get_XP(ctrl->tCK, ctrl->base_freq); - ctrl->tAONPD = get_AONPD(ctrl->tCK, ctrl->base_freq); + ctrl->tWLO = get_WLO(ctrl->tCK, ctrl->base_freq); + ctrl->tCKE = get_CKE(ctrl->tCK, ctrl->base_freq); + ctrl->tXPDLL = get_XPDLL(ctrl->tCK, ctrl->base_freq); + ctrl->tXP = get_XP(ctrl->tCK, ctrl->base_freq); + ctrl->tAONPD = get_AONPD(ctrl->tCK, ctrl->base_freq); } static void dram_freq(ramctr_timing *ctrl) { if (ctrl->tCK > TCK_400MHZ) { - printk (BIOS_ERR, "DRAM frequency is under lowest supported " - "frequency (400 MHz). Increasing to 400 MHz as last resort"); + printk(BIOS_ERR, + "DRAM frequency is under lowest supported frequency (400 MHz). " + "Increasing to 400 MHz as last resort"); ctrl->tCK = TCK_400MHZ; } @@ -540,11 +483,12 @@ static void dram_freq(ramctr_timing *ctrl) /* Step 1 - Set target PCU frequency */ find_cas_tck(ctrl); - /* Frequency multiplier. */ - u32 FRQ = get_FRQ(ctrl->tCK, ctrl->base_freq); + /* Frequency multiplier */ + const u32 FRQ = get_FRQ(ctrl->tCK, ctrl->base_freq); - /* The PLL will never lock if the required frequency is - * already set. Exit early to prevent a system hang. + /* + * The PLL will never lock if the required frequency is already set. + * Exit early to prevent a system hang. */ reg1 = MCHBAR32(MC_BIOS_DATA); val2 = (u8) reg1; @@ -554,10 +498,11 @@ static void dram_freq(ramctr_timing *ctrl) /* Step 2 - Select frequency in the MCU */ reg1 = FRQ; if (ctrl->base_freq == 100) - reg1 |= 0x100; /* Enable 100Mhz REF clock */ - reg1 |= 0x80000000; // set running bit + reg1 |= 0x100; /* Enable 100Mhz REF clock */ + + reg1 |= 0x80000000; /* set running bit */ MCHBAR32(MC_BIOS_REQ) = reg1; - int i=0; + int i = 0; printk(BIOS_DEBUG, "PLL busy... "); while (reg1 & 0x80000000) { udelay(10); @@ -581,61 +526,57 @@ static void dram_freq(ramctr_timing *ctrl) static void dram_ioregs(ramctr_timing *ctrl) { - u32 reg, comp2; + u32 reg; int channel; - // IO clock + /* IO clock */ FOR_ALL_CHANNELS { MCHBAR32(GDCRCLKRANKSUSED_ch(channel)) = ctrl->rankmap[channel]; } - // IO command + /* IO command */ FOR_ALL_CHANNELS { MCHBAR32(GDCRCTLRANKSUSED_ch(channel)) = ctrl->rankmap[channel]; } - // IO control + /* IO control */ FOR_ALL_POPULATED_CHANNELS { program_timings(ctrl, channel); } - // Rcomp + /* Perform RCOMP */ printram("RCOMP..."); - reg = 0; - while (reg == 0) { - reg = MCHBAR32(RCOMP_TIMER) & 0x10000; - } + while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16))) + ; + printram("done\n"); - // Set comp2 - comp2 = get_COMP2(ctrl->tCK, ctrl->base_freq); - MCHBAR32(CRCOMPOFST2) = comp2; + /* Set COMP2 */ + MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl->tCK, ctrl->base_freq); printram("COMP2 done\n"); - // Set comp1 + /* Set COMP1 */ FOR_ALL_POPULATED_CHANNELS { - reg = MCHBAR32(CRCOMPOFST1_ch(channel)); //ch0 - reg = (reg & ~0xe00) | (1 << 9); //odt - reg = (reg & ~0xe00000) | (1 << 21); //clk drive up - reg = (reg & ~0x38000000) | (1 << 27); //ctl drive up + reg = MCHBAR32(CRCOMPOFST1_ch(channel)); + reg = (reg & ~0x00000e00) | (1 << 9); /* ODT */ + reg = (reg & ~0x00e00000) | (1 << 21); /* clk drive up */ + reg = (reg & ~0x38000000) | (1 << 27); /* ctl drive up */ MCHBAR32(CRCOMPOFST1_ch(channel)) = reg; } printram("COMP1 done\n"); printram("FORCE RCOMP and wait 20us..."); - MCHBAR32(M_COMP) |= 0x100; + MCHBAR32(M_COMP) |= (1 << 8); udelay(20); printram("done\n"); } -int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, - int s3_resume, int me_uma_size) +int try_init_dram_ddr3_ivb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size) { int err; - printk(BIOS_DEBUG, "Starting Ivybridge RAM training (%d).\n", - fast_boot); + printk(BIOS_DEBUG, "Starting Ivybridge RAM training (%d).\n", fast_boot); if (!fast_boot) { /* Find fastest common supported parameters */ @@ -644,7 +585,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, dram_dimm_mapping(ctrl); } - /* Set MCU frequency */ + /* Set MC frequency */ dram_freq(ctrl); if (!fast_boot) { @@ -653,7 +594,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, } /* Set version register */ - MCHBAR32(MRC_REVISION) = 0xC04EB002; + MCHBAR32(MRC_REVISION) = 0xc04eb002; /* Enable crossover */ dram_xover(ctrl); @@ -667,11 +608,11 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, /* Set scheduler chicken bits */ MCHBAR32(SCHED_CBIT) = 0x10100005; - /* Set CPU specific register */ - set_4f8c(); + /* Set up watermarks and starvation counter */ + set_wmm_behavior(); /* Clear IO reset bit */ - MCHBAR32(MC_INIT_STATE_G) &= ~0x20; + MCHBAR32(MC_INIT_STATE_G) &= ~(1 << 5); /* Set MAD-DIMM registers */ dram_dimm_set_mapping(ctrl); @@ -693,7 +634,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, if (fast_boot) { restore_timings(ctrl); } else { - /* Do jedec ddr3 reset sequence */ + /* Do JEDEC DDR3 reset sequence */ dram_jedecreset(ctrl); printk(BIOS_DEBUG, "Done jedec reset\n"); @@ -737,7 +678,7 @@ int try_init_dram_ddr3_ivy(ramctr_timing *ctrl, int fast_boot, normalize_training(ctrl); } - set_4008c(ctrl); + set_read_write_timings(ctrl); write_controller_mr(ctrl); diff --git a/src/northbridge/intel/sandybridge/raminit_mrc.c b/src/northbridge/intel/sandybridge/raminit_mrc.c index 9e07e2ebaf..5b4b46c583 100644 --- a/src/northbridge/intel/sandybridge/raminit_mrc.c +++ b/src/northbridge/intel/sandybridge/raminit_mrc.c @@ -44,8 +44,8 @@ */ #if CONFIG(USE_OPTION_TABLE) #include "option_table.h" -#define CMOS_OFFSET_MRC_SEED (CMOS_VSTART_mrc_scrambler_seed >> 3) -#define CMOS_OFFSET_MRC_SEED_S3 (CMOS_VSTART_mrc_scrambler_seed_s3 >> 3) +#define CMOS_OFFSET_MRC_SEED (CMOS_VSTART_mrc_scrambler_seed >> 3) +#define CMOS_OFFSET_MRC_SEED_S3 (CMOS_VSTART_mrc_scrambler_seed_s3 >> 3) #define CMOS_OFFSET_MRC_SEED_CHK (CMOS_VSTART_mrc_scrambler_seed_chk >> 3) #else #define CMOS_OFFSET_MRC_SEED 152 @@ -60,8 +60,7 @@ void save_mrc_data(struct pei_data *pei_data) u16 c1, c2, checksum; /* Save the MRC S3 restore data to cbmem */ - mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, - pei_data->mrc_output, + mrc_cache_stash_data(MRC_TRAINING_DATA, MRC_CACHE_VERSION, pei_data->mrc_output, pei_data->mrc_output_len); /* Save the MRC seed values to CMOS */ @@ -74,14 +73,12 @@ void save_mrc_data(struct pei_data *pei_data) pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3); /* Save a simple checksum of the seed values */ - c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed, - sizeof(u32)); - c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3, - sizeof(u32)); + c1 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed, sizeof(u32)); + c2 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed_s3, sizeof(u32)); checksum = add_ip_checksums(sizeof(u32), c1, c2); - cmos_write(checksum & 0xff, CMOS_OFFSET_MRC_SEED_CHK); - cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK+1); + cmos_write((checksum >> 0) & 0xff, CMOS_OFFSET_MRC_SEED_CHK); + cmos_write((checksum >> 8) & 0xff, CMOS_OFFSET_MRC_SEED_CHK + 1); } static void prepare_mrc_cache(struct pei_data *pei_data) @@ -89,7 +86,7 @@ static void prepare_mrc_cache(struct pei_data *pei_data) struct region_device rdev; u16 c1, c2, checksum, seed_checksum; - // preset just in case there is an error + /* Preset just in case there is an error */ pei_data->mrc_input = NULL; pei_data->mrc_input_len = 0; @@ -103,14 +100,12 @@ static void prepare_mrc_cache(struct pei_data *pei_data) pei_data->scrambler_seed_s3, CMOS_OFFSET_MRC_SEED_S3); /* Compute seed checksum and compare */ - c1 = compute_ip_checksum((u8*)&pei_data->scrambler_seed, - sizeof(u32)); - c2 = compute_ip_checksum((u8*)&pei_data->scrambler_seed_s3, - sizeof(u32)); + c1 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed, sizeof(u32)); + c2 = compute_ip_checksum((u8 *)&pei_data->scrambler_seed_s3, sizeof(u32)); checksum = add_ip_checksums(sizeof(u32), c1, c2); - seed_checksum = cmos_read(CMOS_OFFSET_MRC_SEED_CHK); - seed_checksum |= cmos_read(CMOS_OFFSET_MRC_SEED_CHK+1) << 8; + seed_checksum = cmos_read(CMOS_OFFSET_MRC_SEED_CHK); + seed_checksum |= cmos_read(CMOS_OFFSET_MRC_SEED_CHK + 1) << 8; if (checksum != seed_checksum) { printk(BIOS_ERR, "%s: invalid seed checksum\n", __func__); @@ -119,68 +114,64 @@ static void prepare_mrc_cache(struct pei_data *pei_data) return; } - if (mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION, - &rdev)) { - /* error message printed in find_current_mrc_cache */ + if (mrc_cache_get_current(MRC_TRAINING_DATA, MRC_CACHE_VERSION, &rdev)) { + /* Error message printed in find_current_mrc_cache */ return; } pei_data->mrc_input = rdev_mmap_full(&rdev); pei_data->mrc_input_len = region_device_sz(&rdev); - printk(BIOS_DEBUG, "%s: at %p, size %x\n", - __func__, pei_data->mrc_input, pei_data->mrc_input_len); + printk(BIOS_DEBUG, "%s: at %p, size %x\n", __func__, pei_data->mrc_input, + pei_data->mrc_input_len); } static const char *ecc_decoder[] = { "inactive", "active on IO", "disabled on IO", - "active" + "active", }; -/* - * Dump in the log memory controller configuration as read from the memory - * controller registers. - */ +#define ON_OFF(val) (((val) & 1) ? "on" : "off") + +/* Print the memory controller configuration as read from the memory controller registers. */ static void report_memory_config(void) { u32 addr_decoder_common, addr_decode_ch[2]; int i; addr_decoder_common = MCHBAR32(MAD_CHNL); - addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0); - addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1); + addr_decode_ch[0] = MCHBAR32(MAD_DIMM_CH0); + addr_decode_ch[1] = MCHBAR32(MAD_DIMM_CH1); printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n", - (MCHBAR32(MC_BIOS_DATA) * 13333 * 2 + 50)/100); + (MCHBAR32(MC_BIOS_DATA) * 13333 * 2 + 50) / 100); + printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n", - addr_decoder_common & 3, + (addr_decoder_common >> 0) & 3, (addr_decoder_common >> 2) & 3, (addr_decoder_common >> 4) & 3); for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) { u32 ch_conf = addr_decode_ch[i]; - printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", - i, ch_conf); - printk(BIOS_DEBUG, " ECC %s\n", - ecc_decoder[(ch_conf >> 24) & 3]); - printk(BIOS_DEBUG, " enhanced interleave mode %s\n", - ((ch_conf >> 22) & 1) ? "on" : "off"); - printk(BIOS_DEBUG, " rank interleave %s\n", - ((ch_conf >> 21) & 1) ? "on" : "off"); + printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", i, ch_conf); + printk(BIOS_DEBUG, " ECC %s\n", ecc_decoder[(ch_conf >> 24) & 3]); + printk(BIOS_DEBUG, " enhanced interleave mode %s\n", ON_OFF(ch_conf >> 22)); + printk(BIOS_DEBUG, " rank interleave %s\n", ON_OFF(ch_conf >> 21)); printk(BIOS_DEBUG, " DIMMA %d MB width x%d %s rank%s\n", - ((ch_conf >> 0) & 0xff) * 256, + ((ch_conf >> 0) & 0xff) * 256, ((ch_conf >> 19) & 1) ? 16 : 8, ((ch_conf >> 17) & 1) ? "dual" : "single", ((ch_conf >> 16) & 1) ? "" : ", selected"); printk(BIOS_DEBUG, " DIMMB %d MB width x%d %s rank%s\n", - ((ch_conf >> 8) & 0xff) * 256, + ((ch_conf >> 8) & 0xff) * 256, ((ch_conf >> 20) & 1) ? 16 : 8, ((ch_conf >> 18) & 1) ? "dual" : "single", ((ch_conf >> 16) & 1) ? ", selected" : ""); } } +#undef ON_OFF /** * Find PEI executable in coreboot filesystem and execute it. @@ -190,7 +181,7 @@ static void report_memory_config(void) void sdram_initialize(struct pei_data *pei_data) { struct sys_info sysinfo; - int (*entry) (struct pei_data *pei_data) __attribute__((regparm(1))); + int (*entry)(struct pei_data *pei_data) __attribute__((regparm(1))); /* Wait for ME to be ready */ intel_early_me_init(); @@ -245,18 +236,17 @@ void sdram_initialize(struct pei_data *pei_data) if (CONFIG(USBDEBUG_IN_PRE_RAM)) usbdebug_hw_init(true); - /* For reference print the System Agent version - * after executing the UEFI PEI stage. - */ + /* For reference, print the System Agent version after executing the UEFI PEI stage */ u32 version = MCHBAR32(MRC_REVISION); printk(BIOS_DEBUG, "System Agent Version %d.%d.%d Build %d\n", - version >> 24, (version >> 16) & 0xff, - (version >> 8) & 0xff, version & 0xff); + (version >> 24) & 0xff, (version >> 16) & 0xff, + (version >> 8) & 0xff, (version >> 0) & 0xff); - /* Send ME init done for SandyBridge here. This is done - * inside the SystemAgent binary on IvyBridge. */ - if (BASE_REV_SNB == - (pci_read_config16(PCI_CPU_DEVICE, PCI_DEVICE_ID) & BASE_REV_MASK)) + /* + * Send ME init done for SandyBridge here. + * This is done inside the SystemAgent binary on IvyBridge. + */ + if (BASE_REV_SNB == (pci_read_config16(PCI_CPU_DEVICE, PCI_DEVICE_ID) & BASE_REV_MASK)) intel_early_me_init_done(ME_INIT_STATUS_SUCCESS); else intel_early_me_status(); @@ -264,31 +254,30 @@ void sdram_initialize(struct pei_data *pei_data) report_memory_config(); } -/* These are the location and structure of MRC_VAR data in CAR. - The CAR region looks like this: - +------------------+ -> DCACHE_RAM_BASE - | | - | | - | COREBOOT STACK | - | | - | | - +------------------+ -> DCACHE_RAM_BASE + DCACHE_RAM_SIZE - | | - | MRC HEAP | - | size = 0x5000 | - | | - +------------------+ - | | - | MRC VAR | - | size = 0x4000 | - | | - +------------------+ -> DACHE_RAM_BASE + DACHE_RAM_SIZE - + DCACHE_RAM_MRC_VAR_SIZE - +/* + * These are the location and structure of MRC_VAR data in CAR. + * The CAR region looks like this: + * +------------------+ -> DCACHE_RAM_BASE + * | | + * | | + * | COREBOOT STACK | + * | | + * | | + * +------------------+ -> DCACHE_RAM_BASE + DCACHE_RAM_SIZE + * | | + * | MRC HEAP | + * | size = 0x5000 | + * | | + * +------------------+ + * | | + * | MRC VAR | + * | size = 0x4000 | + * | | + * +------------------+ -> DACHE_RAM_BASE + DACHE_RAM_SIZE + * + DCACHE_RAM_MRC_VAR_SIZE */ -#define DCACHE_RAM_MRC_VAR_BASE \ - (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE + \ - CONFIG_DCACHE_RAM_MRC_VAR_SIZE - 0x4000) +#define DCACHE_RAM_MRC_VAR_BASE (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE \ + + CONFIG_DCACHE_RAM_MRC_VAR_SIZE - 0x4000) struct mrc_var_data { u32 acpi_timer_flag; @@ -300,14 +289,14 @@ struct mrc_var_data { static void northbridge_fill_pei_data(struct pei_data *pei_data) { - pei_data->mchbar = (uintptr_t)DEFAULT_MCHBAR; - pei_data->dmibar = (uintptr_t)DEFAULT_DMIBAR; - pei_data->epbar = DEFAULT_EPBAR; - pei_data->pciexbar = CONFIG_MMCONF_BASE_ADDRESS; + pei_data->mchbar = (uintptr_t)DEFAULT_MCHBAR; + pei_data->dmibar = (uintptr_t)DEFAULT_DMIBAR; + pei_data->epbar = DEFAULT_EPBAR; + pei_data->pciexbar = CONFIG_MMCONF_BASE_ADDRESS; pei_data->hpet_address = CONFIG_HPET_ADDRESS; - pei_data->thermalbase = 0xfed08000; - pei_data->system_type = get_platform_type() == PLATFORM_MOBILE ? 0 : 1; - pei_data->tseg_size = CONFIG_SMM_TSEG_SIZE; + pei_data->thermalbase = 0xfed08000; + pei_data->system_type = !(get_platform_type() == PLATFORM_MOBILE); + pei_data->tseg_size = CONFIG_SMM_TSEG_SIZE; if ((cpu_get_cpuid() & 0xffff0) == 0x306a0) { const struct device *dev = pcidev_on_root(1, 0); @@ -321,12 +310,12 @@ static void southbridge_fill_pei_data(struct pei_data *pei_data) { const struct device *dev = pcidev_on_root(0x19, 0); - pei_data->smbusbar = SMBUS_IO_BASE; - pei_data->wdbbar = 0x4000000; - pei_data->wdbsize = 0x1000; - pei_data->rcba = (uintptr_t)DEFAULT_RCBABASE; - pei_data->pmbase = DEFAULT_PMBASE; - pei_data->gpiobase = DEFAULT_GPIOBASE; + pei_data->smbusbar = SMBUS_IO_BASE; + pei_data->wdbbar = 0x04000000; + pei_data->wdbsize = 0x1000; + pei_data->rcba = (uintptr_t)DEFAULT_RCBABASE; + pei_data->pmbase = DEFAULT_PMBASE; + pei_data->gpiobase = DEFAULT_GPIOBASE; pei_data->gbe_enable = dev && dev->enabled; } @@ -360,13 +349,10 @@ static void devicetree_fill_pei_data(struct pei_data *pei_data) } - memcpy(pei_data->spd_addresses, cfg->spd_addresses, - sizeof(pei_data->spd_addresses)); + memcpy(pei_data->spd_addresses, cfg->spd_addresses, sizeof(pei_data->spd_addresses)); + memcpy(pei_data->ts_addresses, cfg->ts_addresses, sizeof(pei_data->ts_addresses)); - memcpy(pei_data->ts_addresses, cfg->ts_addresses, - sizeof(pei_data->ts_addresses)); - - pei_data->ec_present = cfg->ec_present; + pei_data->ec_present = cfg->ec_present; pei_data->ddr3lv_support = cfg->ddr3lv_support; pei_data->nmode = cfg->nmode; @@ -375,15 +361,15 @@ static void devicetree_fill_pei_data(struct pei_data *pei_data) memcpy(pei_data->usb_port_config, cfg->usb_port_config, sizeof(pei_data->usb_port_config)); - pei_data->usb3.mode = cfg->usb3.mode; + pei_data->usb3.mode = cfg->usb3.mode; pei_data->usb3.hs_port_switch_mask = cfg->usb3.hs_port_switch_mask; - pei_data->usb3.preboot_support = cfg->usb3.preboot_support; - pei_data->usb3.xhci_streams = cfg->usb3.xhci_streams; + pei_data->usb3.preboot_support = cfg->usb3.preboot_support; + pei_data->usb3.xhci_streams = cfg->usb3.xhci_streams; } static void disable_p2p(void) { - /* Disable PCI-to-PCI bridge early to prevent probing by MRC. */ + /* Disable PCI-to-PCI bridge early to prevent probing by MRC */ const struct device *const p2p = pcidev_on_root(0x1e, 0); if (p2p && p2p->enabled) return; @@ -393,7 +379,6 @@ static void disable_p2p(void) void perform_raminit(int s3resume) { - int cbmem_was_initted; struct pei_data pei_data; struct mrc_var_data *mrc_var; @@ -425,6 +410,7 @@ void perform_raminit(int s3resume) if (pei_data.spd_data[i][0] && !pei_data.spd_data[0][0]) { memcpy(pei_data.spd_data[0], pei_data.spd_data[i], sizeof(pei_data.spd_data[0])); + } else if (pei_data.spd_data[i][0] && pei_data.spd_data[0][0]) { if (memcmp(pei_data.spd_data[i], pei_data.spd_data[0], sizeof(pei_data.spd_data[0])) != 0) @@ -438,18 +424,18 @@ void perform_raminit(int s3resume) timestamp_add_now(TS_BEFORE_INITRAM); sdram_initialize(&pei_data); + /* Sanity check mrc_var location by verifying a known field */ mrc_var = (void *)DCACHE_RAM_MRC_VAR_BASE; - /* Sanity check mrc_var location by verifying a known field. */ if (mrc_var->tx_byte == (uintptr_t)pei_data.tx_byte) { printk(BIOS_DEBUG, "MRC_VAR pool occupied [%08x,%08x]\n", - mrc_var->pool_base, - mrc_var->pool_base + mrc_var->pool_used); + mrc_var->pool_base, mrc_var->pool_base + mrc_var->pool_used); + } else { printk(BIOS_ERR, "Could not parse MRC_VAR data\n"); - hexdump32(BIOS_ERR, mrc_var, sizeof(*mrc_var)/sizeof(u32)); + hexdump32(BIOS_ERR, mrc_var, sizeof(*mrc_var) / sizeof(u32)); } - cbmem_was_initted = !cbmem_recovery(s3resume); + const int cbmem_was_initted = !cbmem_recovery(s3resume); if (!s3resume) save_mrc_data(&pei_data); diff --git a/src/northbridge/intel/sandybridge/raminit_native.h b/src/northbridge/intel/sandybridge/raminit_native.h index ecf13cf1f8..60a5665ba9 100644 --- a/src/northbridge/intel/sandybridge/raminit_native.h +++ b/src/northbridge/intel/sandybridge/raminit_native.h @@ -18,8 +18,8 @@ #include "sandybridge.h" #include <device/dram/ddr3.h> -/* The order is ch0dimmA, ch0dimmB, ch1dimmA, ch1dimmB. */ +/* The order is: ch0dimmA, ch0dimmB, ch1dimmA, ch1dimmB */ void read_spd(spd_raw_data *spd, u8 addr, bool id_only); void mainboard_get_spd(spd_raw_data *spd, bool id_only); -#endif /* RAMINIT_H */ +#endif /* RAMINIT_NATIVE_H */ diff --git a/src/northbridge/intel/sandybridge/raminit_sandy.c b/src/northbridge/intel/sandybridge/raminit_sandy.c index b5169e7525..3b68c22b87 100644 --- a/src/northbridge/intel/sandybridge/raminit_sandy.c +++ b/src/northbridge/intel/sandybridge/raminit_sandy.c @@ -18,116 +18,105 @@ #include "raminit_native.h" #include "raminit_common.h" -/* Frequency multiplier. */ +/* Frequency multiplier */ static u32 get_FRQ(u32 tCK) { - u32 FRQ; - FRQ = 256000 / (tCK * BASEFREQ); + const u32 FRQ = 256000 / (tCK * BASEFREQ); + if (FRQ > 8) return 8; if (FRQ < 3) return 3; + return FRQ; } +/* Get REFI based on MC frequency */ static u32 get_REFI(u32 tCK) { - /* Get REFI based on MCU frequency using the following rule: - * _________________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * REFI: | 3120 | 4160 | 5200 | 6240 | 7280 | 8320 | - */ - static const u32 frq_refi_map[] = - { 3120, 4160, 5200, 6240, 7280, 8320 }; + static const u32 frq_refi_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 3120, 4160, 5200, 6240, 7280, 8320, + }; return frq_refi_map[get_FRQ(tCK) - 3]; } +/* Get XSOffset based on MC frequency */ static u8 get_XSOffset(u32 tCK) { - /* Get XSOffset based on MCU frequency using the following rule: - * _________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * XSOffset : | 4 | 6 | 7 | 8 | 10 | 11 | - */ - static const u8 frq_xs_map[] = { 4, 6, 7, 8, 10, 11 }; + static const u8 frq_xs_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 4, 6, 7, 8, 10, 11, + }; return frq_xs_map[get_FRQ(tCK) - 3]; } +/* Get MOD based on MC frequency */ static u8 get_MOD(u32 tCK) { - /* Get MOD based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * MOD : | 12 | 12 | 12 | 12 | 15 | 16 | - */ - static const u8 frq_mod_map[] = { 12, 12, 12, 12, 15, 16 }; + static const u8 frq_mod_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 12, 12, 12, 12, 15, 16, + }; return frq_mod_map[get_FRQ(tCK) - 3]; } +/* Get Write Leveling Output delay based on MC frequency */ static u8 get_WLO(u32 tCK) { - /* Get WLO based on MCU frequency using the following rule: - * _______________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * WLO : | 4 | 5 | 6 | 6 | 8 | 8 | - */ - static const u8 frq_wlo_map[] = { 4, 5, 6, 6, 8, 8 }; + static const u8 frq_wlo_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 4, 5, 6, 6, 8, 8, + }; return frq_wlo_map[get_FRQ(tCK) - 3]; } +/* Get CKE based on MC frequency */ static u8 get_CKE(u32 tCK) { - /* Get CKE based on MCU frequency using the following rule: - * _______________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * CKE : | 3 | 3 | 4 | 4 | 5 | 6 | - */ - static const u8 frq_cke_map[] = { 3, 3, 4, 4, 5, 6 }; + static const u8 frq_cke_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 3, 3, 4, 4, 5, 6, + }; return frq_cke_map[get_FRQ(tCK) - 3]; } +/* Get XPDLL based on MC frequency */ static u8 get_XPDLL(u32 tCK) { - /* Get XPDLL based on MCU frequency using the following rule: - * _____________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * XPDLL : | 10 | 13 | 16 | 20 | 23 | 26 | - */ - static const u8 frq_xpdll_map[] = { 10, 13, 16, 20, 23, 26 }; + static const u8 frq_xpdll_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 10, 13, 16, 20, 23, 26, + }; return frq_xpdll_map[get_FRQ(tCK) - 3]; } +/* Get XP based on MC frequency */ static u8 get_XP(u32 tCK) { - /* Get XP based on MCU frequency using the following rule: - * _______________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * XP : | 3 | 4 | 4 | 5 | 6 | 7 | - */ - static const u8 frq_xp_map[] = { 3, 4, 4, 5, 6, 7 }; + static const u8 frq_xp_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 3, 4, 4, 5, 6, 7, + }; return frq_xp_map[get_FRQ(tCK) - 3]; } +/* Get AONPD based on MC frequency */ static u8 get_AONPD(u32 tCK) { - /* Get AONPD based on MCU frequency using the following rule: - * ________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * AONPD : | 4 | 5 | 6 | 8 | 8 | 10 | - */ - static const u8 frq_aonpd_map[] = { 4, 5, 6, 8, 8, 10 }; + static const u8 frq_aonpd_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 4, 5, 6, 8, 8, 10, + }; return frq_aonpd_map[get_FRQ(tCK) - 3]; } +/* Get COMP2 based on MC frequency */ static u32 get_COMP2(u32 tCK) { - /* Get COMP2 based on MCU frequency using the following rule: - * ___________________________________________________________ - * FRQ : | 3 | 4 | 5 | 6 | 7 | 8 | - * COMP : | D6BEDCC | CE7C34C | CA57A4C | C6369CC | C42514C | C21410C | - */ - static const u32 frq_comp2_map[] = { 0xD6BEDCC, 0xCE7C34C, 0xCA57A4C, - 0xC6369CC, 0xC42514C, 0xC21410C + static const u32 frq_comp2_map[] = { + /* FRQ: 3, 4, 5, 6, 7, 8, */ + 0x0D6BEDCC, 0x0CE7C34C, 0x0CA57A4C, 0x0C6369CC, 0x0C42514C, 0x0C21410C, }; return frq_comp2_map[get_FRQ(tCK) - 3]; } @@ -154,21 +143,23 @@ static void snb_normalize_tclk(u32 *tclk) static void find_cas_tck(ramctr_timing *ctrl) { u8 val; - u32 val32; /* Find CAS latency */ while (1) { - /* Normalising tCK before computing clock could potentially - * results in lower selected CAS, which is desired. + /* + * Normalising tCK before computing clock could potentially + * result in a lower selected CAS, which is desired. */ snb_normalize_tclk(&(ctrl->tCK)); if (!(ctrl->tCK)) die("Couldn't find compatible clock / CAS settings\n"); + val = DIV_ROUND_UP(ctrl->tAA, ctrl->tCK); printk(BIOS_DEBUG, "Trying CAS %u, tCK %u.\n", val, ctrl->tCK); for (; val <= MAX_CAS; val++) if ((ctrl->cas_supported >> (val - MIN_CAS)) & 1) break; + if (val == (MAX_CAS + 1)) { ctrl->tCK++; continue; @@ -178,18 +169,17 @@ static void find_cas_tck(ramctr_timing *ctrl) } } - val32 = NS2MHZ_DIV256 / ctrl->tCK; - printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", val32); - + printk(BIOS_DEBUG, "Selected DRAM frequency: %u MHz\n", NS2MHZ_DIV256 / ctrl->tCK); printk(BIOS_DEBUG, "Selected CAS latency : %uT\n", val); ctrl->CAS = val; } static void dram_timing(ramctr_timing *ctrl) { - /* Maximum supported DDR3 frequency is 1066MHz (DDR3 2133) so make sure - * we cap it if we have faster DIMMs. - * Then, align it to the closest JEDEC standard frequency */ + /* + * On Sandy Bridge, the maximum supported DDR3 frequency is 1066MHz (DDR3 2133). + * Cap it for faster DIMMs, and align it to the closest JEDEC standard frequency. + */ if (ctrl->tCK == TCK_1066MHZ) { ctrl->edge_offset[0] = 16; ctrl->edge_offset[1] = 7; @@ -198,6 +188,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 7; ctrl->timC_offset[2] = 7; ctrl->pi_coding_threshold = 13; + } else if (ctrl->tCK == TCK_933MHZ) { ctrl->edge_offset[0] = 14; ctrl->edge_offset[1] = 6; @@ -206,6 +197,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 6; ctrl->timC_offset[2] = 6; ctrl->pi_coding_threshold = 15; + } else if (ctrl->tCK == TCK_800MHZ) { ctrl->edge_offset[0] = 13; ctrl->edge_offset[1] = 5; @@ -214,6 +206,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 5; ctrl->timC_offset[2] = 5; ctrl->pi_coding_threshold = 15; + } else if (ctrl->tCK == TCK_666MHZ) { ctrl->edge_offset[0] = 10; ctrl->edge_offset[1] = 4; @@ -222,6 +215,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 4; ctrl->timC_offset[2] = 4; ctrl->pi_coding_threshold = 16; + } else if (ctrl->tCK == TCK_533MHZ) { ctrl->edge_offset[0] = 8; ctrl->edge_offset[1] = 3; @@ -230,6 +224,7 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->timC_offset[1] = 3; ctrl->timC_offset[2] = 3; ctrl->pi_coding_threshold = 17; + } else { ctrl->tCK = TCK_400MHZ; ctrl->edge_offset[0] = 6; @@ -251,13 +246,14 @@ static void dram_timing(ramctr_timing *ctrl) ctrl->CWL = DIV_ROUND_UP(ctrl->tCWL, ctrl->tCK); else ctrl->CWL = get_CWL(ctrl->tCK); + printk(BIOS_DEBUG, "Selected CWL latency : %uT\n", ctrl->CWL); /* Find tRCD */ ctrl->tRCD = DIV_ROUND_UP(ctrl->tRCD, ctrl->tCK); printk(BIOS_DEBUG, "Selected tRCD : %uT\n", ctrl->tRCD); - ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK); + ctrl->tRP = DIV_ROUND_UP(ctrl->tRP, ctrl->tCK); printk(BIOS_DEBUG, "Selected tRP : %uT\n", ctrl->tRP); /* Find tRAS */ @@ -265,7 +261,7 @@ static void dram_timing(ramctr_timing *ctrl) printk(BIOS_DEBUG, "Selected tRAS : %uT\n", ctrl->tRAS); /* Find tWR */ - ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK); + ctrl->tWR = DIV_ROUND_UP(ctrl->tWR, ctrl->tCK); printk(BIOS_DEBUG, "Selected tWR : %uT\n", ctrl->tWR); /* Find tFAW */ @@ -285,25 +281,25 @@ static void dram_timing(ramctr_timing *ctrl) printk(BIOS_DEBUG, "Selected tWTR : %uT\n", ctrl->tWTR); /* Refresh-to-Active or Refresh-to-Refresh (tRFC) */ - ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK - 1); + ctrl->tRFC = DIV_ROUND_UP(ctrl->tRFC, ctrl->tCK - 1); /* FIXME: Why the -1 ? */ printk(BIOS_DEBUG, "Selected tRFC : %uT\n", ctrl->tRFC); - ctrl->tREFI = get_REFI(ctrl->tCK); - ctrl->tMOD = get_MOD(ctrl->tCK); + ctrl->tREFI = get_REFI(ctrl->tCK); + ctrl->tMOD = get_MOD(ctrl->tCK); ctrl->tXSOffset = get_XSOffset(ctrl->tCK); - ctrl->tWLO = get_WLO(ctrl->tCK); - ctrl->tCKE = get_CKE(ctrl->tCK); - ctrl->tXPDLL = get_XPDLL(ctrl->tCK); - ctrl->tXP = get_XP(ctrl->tCK); - ctrl->tAONPD = get_AONPD(ctrl->tCK); + ctrl->tWLO = get_WLO(ctrl->tCK); + ctrl->tCKE = get_CKE(ctrl->tCK); + ctrl->tXPDLL = get_XPDLL(ctrl->tCK); + ctrl->tXP = get_XP(ctrl->tCK); + ctrl->tAONPD = get_AONPD(ctrl->tCK); } static void dram_freq(ramctr_timing *ctrl) { - if (ctrl->tCK > TCK_400MHZ) { - printk(BIOS_ERR, "DRAM frequency is under lowest supported " - "frequency (400 MHz). Increasing to 400 MHz as last resort"); + printk(BIOS_ERR, + "DRAM frequency is under lowest supported frequency (400 MHz). " + "Increasing to 400 MHz as last resort"); ctrl->tCK = TCK_400MHZ; } @@ -311,13 +307,15 @@ static void dram_freq(ramctr_timing *ctrl) u8 val2; u32 reg1 = 0; + /* Step 1 - Set target PCU frequency */ find_cas_tck(ctrl); - /* Frequency multiplier. */ - u32 FRQ = get_FRQ(ctrl->tCK); + /* Frequency multiplier */ + const u32 FRQ = get_FRQ(ctrl->tCK); - /* The PLL will never lock if the required frequency is - * already set. Exit early to prevent a system hang. + /* + * The PLL will never lock if the required frequency is already set. + * Exit early to prevent a system hang. */ reg1 = MCHBAR32(MC_BIOS_DATA); val2 = (u8) reg1; @@ -326,7 +324,7 @@ static void dram_freq(ramctr_timing *ctrl) /* Step 1 - Select frequency in the MCU */ reg1 = FRQ; - reg1 |= 0x80000000; // set running bit + reg1 |= 0x80000000; /* set running bit */ MCHBAR32(MC_BIOS_REQ) = reg1; int i=0; printk(BIOS_DEBUG, "PLL busy... "); @@ -352,61 +350,57 @@ static void dram_freq(ramctr_timing *ctrl) static void dram_ioregs(ramctr_timing *ctrl) { - u32 reg, comp2; + u32 reg; int channel; - // IO clock + /* IO clock */ FOR_ALL_CHANNELS { MCHBAR32(GDCRCLKRANKSUSED_ch(channel)) = ctrl->rankmap[channel]; } - // IO command + /* IO command */ FOR_ALL_CHANNELS { MCHBAR32(GDCRCTLRANKSUSED_ch(channel)) = ctrl->rankmap[channel]; } - // IO control + /* IO control */ FOR_ALL_POPULATED_CHANNELS { program_timings(ctrl, channel); } - // Rcomp + /* Perform RCOMP */ printram("RCOMP..."); - reg = 0; - while (reg == 0) { - reg = MCHBAR32(RCOMP_TIMER) & 0x10000; - } + while (!(MCHBAR32(RCOMP_TIMER) & (1 << 16))) + ; + printram("done\n"); - // Set comp2 - comp2 = get_COMP2(ctrl->tCK); - MCHBAR32(CRCOMPOFST2) = comp2; + /* Set COMP2 */ + MCHBAR32(CRCOMPOFST2) = get_COMP2(ctrl->tCK); printram("COMP2 done\n"); - // Set comp1 + /* Set COMP1 */ FOR_ALL_POPULATED_CHANNELS { - reg = MCHBAR32(CRCOMPOFST1_ch(channel)); //ch0 - reg = (reg & ~0xe00) | (1 << 9); //odt - reg = (reg & ~0xe00000) | (1 << 21); //clk drive up - reg = (reg & ~0x38000000) | (1 << 27); //ctl drive up + reg = MCHBAR32(CRCOMPOFST1_ch(channel)); + reg = (reg & ~0x00000e00) | (1 << 9); /* ODT */ + reg = (reg & ~0x00e00000) | (1 << 21); /* clk drive up */ + reg = (reg & ~0x38000000) | (1 << 27); /* ctl drive up */ MCHBAR32(CRCOMPOFST1_ch(channel)) = reg; } printram("COMP1 done\n"); printram("FORCE RCOMP and wait 20us..."); - MCHBAR32(M_COMP) |= 0x100; + MCHBAR32(M_COMP) |= (1 << 8); udelay(20); printram("done\n"); } -int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, - int s3_resume, int me_uma_size) +int try_init_dram_ddr3_snb(ramctr_timing *ctrl, int fast_boot, int s3_resume, int me_uma_size) { int err; - printk(BIOS_DEBUG, "Starting SandyBridge RAM training (%d).\n", - fast_boot); + printk(BIOS_DEBUG, "Starting SandyBridge RAM training (%d).\n", fast_boot); if (!fast_boot) { /* Find fastest common supported parameters */ @@ -415,7 +409,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, dram_dimm_mapping(ctrl); } - /* Set MCU frequency */ + /* Set MC frequency */ dram_freq(ctrl); if (!fast_boot) { @@ -424,7 +418,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, } /* Set version register */ - MCHBAR32(MRC_REVISION) = 0xC04EB002; + MCHBAR32(MRC_REVISION) = 0xc04eb002; /* Enable crossover */ dram_xover(ctrl); @@ -438,11 +432,11 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, /* Set scheduler chicken bits */ MCHBAR32(SCHED_CBIT) = 0x10100005; - /* Set CPU specific register */ - set_4f8c(); + /* Set up watermarks and starvation counter */ + set_wmm_behavior(); /* Clear IO reset bit */ - MCHBAR32(MC_INIT_STATE_G) &= ~0x20; + MCHBAR32(MC_INIT_STATE_G) &= ~(1 << 5); /* Set MAD-DIMM registers */ dram_dimm_set_mapping(ctrl); @@ -464,7 +458,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, if (fast_boot) { restore_timings(ctrl); } else { - /* Do jedec ddr3 reset sequence */ + /* Do JEDEC DDR3 reset sequence */ dram_jedecreset(ctrl); printk(BIOS_DEBUG, "Done jedec reset\n"); @@ -508,7 +502,7 @@ int try_init_dram_ddr3_sandy(ramctr_timing *ctrl, int fast_boot, normalize_training(ctrl); } - set_4008c(ctrl); + set_read_write_timings(ctrl); write_controller_mr(ctrl); diff --git a/src/northbridge/intel/sandybridge/romstage.c b/src/northbridge/intel/sandybridge/romstage.c index 81049e55c4..ec44ee2c8a 100644 --- a/src/northbridge/intel/sandybridge/romstage.c +++ b/src/northbridge/intel/sandybridge/romstage.c @@ -39,20 +39,18 @@ static void early_pch_reset_pmcon(void) { u8 reg8; - // reset rtc power status + /* Reset RTC power status */ reg8 = pci_read_config8(PCH_LPC_DEV, GEN_PMCON_3); reg8 &= ~(1 << 2); pci_write_config8(PCH_LPC_DEV, GEN_PMCON_3, reg8); } -/* Platform has no romstage entry point under mainboard directory, - * so this one is named with prefix mainboard. - */ +/* The romstage entry point for this platform is not mainboard-specific, hence the name */ void mainboard_romstage_entry(void) { int s3resume = 0; - if (MCHBAR16(SSKPD) == 0xCAFE) + if (MCHBAR16(SSKPD_HI) == 0xCAFE) system_reset(); enable_lapic(); @@ -60,14 +58,12 @@ void mainboard_romstage_entry(void) /* Init LPC, GPIO, BARs, disable watchdog ... */ early_pch_init(); - /* USB is initialized in MRC if MRC is used. */ + /* When using MRC, USB is initialized by MRC */ if (CONFIG(USE_NATIVE_RAMINIT)) { early_usb_init(mainboard_usb_ports); } - /* Perform some early chipset initialization required - * before RAM initialization can work - */ + /* Perform some early chipset init needed before RAM initialization can work */ systemagent_early_init(); printk(BIOS_DEBUG, "Back from systemagent_early_init()\n"); diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h index 0bbb6fc6d2..07d790430f 100644 --- a/src/northbridge/intel/sandybridge/sandybridge.h +++ b/src/northbridge/intel/sandybridge/sandybridge.h @@ -43,8 +43,8 @@ #define DEFAULT_EPBAR 0xfed19000 /* 4 KB */ #define DEFAULT_RCBABASE ((u8 *)0xfed1c000) -#define IOMMU_BASE1 0xfed90000ULL -#define IOMMU_BASE2 0xfed91000ULL +#define GFXVT_BASE 0xfed90000ULL +#define VTVC0_BASE 0xfed91000ULL /* Everything below this line is ignored in the DSDT */ #ifndef __ACPI__ @@ -58,31 +58,32 @@ enum platform_type { /* Device 0:0.0 PCI configuration space (Host Bridge) */ +#define HOST_BRIDGE PCI_DEV(0, 0, 0) #define EPBAR 0x40 #define MCHBAR 0x48 -#define PCIEXBAR 0x60 -#define DMIBAR 0x68 - -#define GGC 0x50 /* GMCH Graphics Control */ -#define DEVEN 0x54 /* Device Enable */ +#define GGC 0x50 /* GMCH Graphics Control */ +#define DEVEN 0x54 /* Device Enable */ #define DEVEN_D7EN (1 << 14) #define DEVEN_PEG60 (1 << 13) -#define DEVEN_D4EN (1 << 7) -#define DEVEN_IGD (1 << 4) -#define DEVEN_PEG10 (1 << 3) -#define DEVEN_PEG11 (1 << 2) -#define DEVEN_PEG12 (1 << 1) -#define DEVEN_HOST (1 << 0) +#define DEVEN_D4EN (1 << 7) +#define DEVEN_IGD (1 << 4) +#define DEVEN_PEG10 (1 << 3) +#define DEVEN_PEG11 (1 << 2) +#define DEVEN_PEG12 (1 << 1) +#define DEVEN_HOST (1 << 0) #define PAVPC 0x58 /* Protected Audio Video Path Control */ #define DPR 0x5c /* DMA Protected Range */ +#define PCIEXBAR 0x60 +#define DMIBAR 0x68 + #define MESEG_BASE 0x70 #define MESEG_MASK 0x78 -#define MELCK (1 << 10) /* ME Range Lock */ -#define ME_STLEN_EN (1 << 11) /* ME Stolen Memory Enable */ +#define MELCK (1 << 10) /* ME Range Lock */ +#define ME_STLEN_EN (1 << 11) /* ME Stolen Memory Enable */ #define PAM0 0x80 #define PAM1 0x81 @@ -109,6 +110,13 @@ enum platform_type { #define SKPAD 0xdc /* Scratchpad Data */ +#define DIDOR 0xf3 /* Device ID override, for debug and samples only */ + + +/* Devices 0:1.0, 0:1.1, 0:1.2, 0:6.0 PCI configuration space (PCI Express Graphics) */ + +#define AFE_PWRON 0xc24 /* PEG Analog Front-End Power-On */ + /* Device 0:2.0 PCI configuration space (Graphics Device) */ @@ -118,246 +126,27 @@ enum platform_type { * MCHBAR */ -#define MCHBAR8(x) (*((volatile u8 *)(DEFAULT_MCHBAR + (x)))) +#define MCHBAR8(x) (*((volatile u8 *)(DEFAULT_MCHBAR + (x)))) #define MCHBAR16(x) (*((volatile u16 *)(DEFAULT_MCHBAR + (x)))) #define MCHBAR32(x) (*((volatile u32 *)(DEFAULT_MCHBAR + (x)))) -#define MCHBAR32_OR(x, or) (MCHBAR32(x) = (MCHBAR32(x) | (or))) -#define MCHBAR32_AND(x, and) (MCHBAR32(x) = (MCHBAR32(x) & (and))) +#define MCHBAR8_AND(x, and) (MCHBAR8(x) = MCHBAR8(x) & (and)) +#define MCHBAR16_AND(x, and) (MCHBAR16(x) = MCHBAR16(x) & (and)) +#define MCHBAR32_AND(x, and) (MCHBAR32(x) = MCHBAR32(x) & (and)) +#define MCHBAR8_OR(x, or) (MCHBAR8(x) = MCHBAR8(x) | (or)) +#define MCHBAR16_OR(x, or) (MCHBAR16(x) = MCHBAR16(x) | (or)) +#define MCHBAR32_OR(x, or) (MCHBAR32(x) = MCHBAR32(x) | (or)) +#define MCHBAR8_AND_OR(x, and, or) (MCHBAR8(x) = (MCHBAR8(x) & (and)) | (or)) +#define MCHBAR16_AND_OR(x, and, or) (MCHBAR16(x) = (MCHBAR16(x) & (and)) | (or)) #define MCHBAR32_AND_OR(x, and, or) (MCHBAR32(x) = (MCHBAR32(x) & (and)) | (or)) -/* Indexed register helper macros */ -#define Gz(r, z) ((r) + ((z) << 8)) -#define Ly(r, y) ((r) + ((y) << 2)) -#define Cx(r, x) ((r) + ((x) << 10)) -#define CxLy(r, x, y) ((r) + ((x) << 10) + ((y) << 2)) -#define GzLy(r, z, y) ((r) + ((z) << 8) + ((y) << 2)) - -/* byte lane training register base addresses */ -#define LANEBASE_B0 0x0000 -#define LANEBASE_B1 0x0200 -#define LANEBASE_B2 0x0400 -#define LANEBASE_B3 0x0600 -#define LANEBASE_ECC 0x0800 /* ECC lane is in the middle of the data lanes */ -#define LANEBASE_B4 0x1000 -#define LANEBASE_B5 0x1200 -#define LANEBASE_B6 0x1400 -#define LANEBASE_B7 0x1600 - -/* byte lane register offsets */ -#define GDCRTRAININGRESULT(ch, y) GzLy(0x0004, ch, y) /* Test results for PI config */ -#define GDCRTRAININGRESULT1(ch) GDCRTRAININGRESULT(ch, 0) /* 0x0004 */ -#define GDCRTRAININGRESULT2(ch) GDCRTRAININGRESULT(ch, 1) /* 0x0008 */ -#define GDCRRX(ch, rank) GzLy(0x10, ch, rank) /* Time setting for lane Rx */ -#define GDCRTX(ch, rank) GzLy(0x20, ch, rank) /* Time setting for lane Tx */ - -/* Register definitions */ -#define GDCRCLKRANKSUSED_ch(ch) Gz(0x0c00, ch) /* Indicates which rank is populated */ -#define GDCRCLKCOMP_ch(ch) Gz(0x0c04, ch) /* RCOMP result register */ -#define GDCRCKPICODE_ch(ch) Gz(0x0c14, ch) /* PI coding for DDR CLK pins */ -#define GDCRCKLOGICDELAY_ch(ch) Gz(0x0c18, ch) /* Logic delay of 1 QCLK in CLK slice */ -#define GDDLLFUSE_ch(ch) Gz(0x0c20, ch) /* Used for fuse download to the DLLs */ -#define GDCRCLKDEBUGMUXCFG_ch(ch) Gz(0x0c3c, ch) /* Debug MUX control */ - -#define GDCRCMDDEBUGMUXCFG_Cz_S(ch) Gz(0x0e3c, ch) /* Debug MUX control */ - -#define CRCOMPOFST1_ch(ch) Gz(0x1810, ch) /* DQ, CTL and CLK Offset values */ - -#define GDCRTRAININGMOD_ch(ch) Gz(0x3000, ch) /* Data training mode control */ -#define GDCRTRAININGRESULT1_ch(ch) Gz(0x3004, ch) /* Training results according to PI */ -#define GDCRTRAININGRESULT2_ch(ch) Gz(0x3008, ch) - -#define GDCRCTLRANKSUSED_ch(ch) Gz(0x3200, ch) /* Indicates which rank is populated */ -#define GDCRCMDCOMP_ch(ch) Gz(0x3204, ch) /* COMP values register */ -#define GDCRCMDCTLCOMP_ch(ch) Gz(0x3208, ch) /* COMP values register */ -#define GDCRCMDPICODING_ch(ch) Gz(0x320c, ch) /* Command and control PI coding */ - -#define GDCRTRAININGMOD 0x3400 /* Data training mode control register */ -#define GDCRDATACOMP 0x340c /* COMP values register */ - -#define CRCOMPOFST2 0x3714 /* CMD DRV, SComp and Static Leg controls */ - -/* MC per-channel registers */ -#define TC_DBP_ch(ch) Cx(0x4000, ch) /* Timings: BIN */ -#define TC_RAP_ch(ch) Cx(0x4004, ch) /* Timings: Regular access */ -#define TC_RWP_ch(ch) Cx(0x4008, ch) /* Timings: Read / Write */ -#define TC_OTHP_ch(ch) Cx(0x400c, ch) /* Timings: Other parameters */ -#define SCHED_SECOND_CBIT_ch(ch) Cx(0x401c, ch) /* More chicken bits */ -#define SCHED_CBIT_ch(ch) Cx(0x4020, ch) /* Chicken bits in scheduler */ -#define SC_ROUNDT_LAT_ch(ch) Cx(0x4024, ch) /* Round-trip latency per rank */ -#define SC_IO_LATENCY_ch(ch) Cx(0x4028, ch) /* IO Latency Configuration */ -#define SCRAMBLING_SEED_1_ch(ch) Cx(0x4034, ch) /* Scrambling seed 1 */ -#define SCRAMBLING_SEED_2_LOW_ch(ch) Cx(0x4038, ch) /* Scrambling seed 2 low */ -#define SCRAMBLING_SEED_2_HIGH_ch(ch) Cx(0x403c, ch) /* Scrambling seed 2 high */ - -/* IOSAV Bytelane Bit-wise error */ -#define IOSAV_By_BW_SERROR_ch(ch, y) CxLy(0x4040, ch, y) - -/* IOSAV Bytelane Bit-wise compare mask */ -#define IOSAV_By_BW_MASK_ch(ch, y) CxLy(0x4080, ch, y) - -/* - * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks. - * Different counters for transactions that are issued on the ring agents (core or GT) and - * transactions issued in the SA. - */ -#define SC_PR_CNT_CONFIG_ch(ch) Cx(0x40a8, ch) -#define SC_PCIT_ch(ch) Cx(0x40ac, ch) /* Page-close idle timer setup - 8 bits */ -#define PM_PDWN_CONFIG_ch(ch) Cx(0x40b0, ch) /* Power-down (CKE-off) operation config */ -#define ECC_INJECT_COUNT_ch(ch) Cx(0x40b4, ch) /* ECC error injection count */ -#define ECC_DFT_ch(ch) Cx(0x40b8, ch) /* ECC DFT features (ECC4ANA, error inject) */ -#define SC_WR_ADD_DELAY_ch(ch) Cx(0x40d0, ch) /* Extra WR delay to overcome WR-flyby issue */ - -#define IOSAV_By_BW_SERROR_C_ch(ch, y) CxLy(0x4140, ch, y) /* IOSAV Bytelane Bit-wise error */ - -/* IOSAV sub-sequence control registers */ -#define IOSAV_n_SP_CMD_ADDR_ch(ch, y) CxLy(0x4200, ch, y) /* Special command address. */ -#define IOSAV_n_ADDR_UPD_ch(ch, y) CxLy(0x4210, ch, y) /* Address update control */ -#define IOSAV_n_SP_CMD_CTL_ch(ch, y) CxLy(0x4220, ch, y) /* Control of command signals */ -#define IOSAV_n_SUBSEQ_CTL_ch(ch, y) CxLy(0x4230, ch, y) /* Sub-sequence controls */ -#define IOSAV_n_ADDRESS_LFSR_ch(ch, y) CxLy(0x4240, ch, y) /* 23-bit LFSR state value */ - -#define PM_THML_STAT_ch(ch) Cx(0x4280, ch) /* Thermal status of each rank */ -#define IOSAV_SEQ_CTL_ch(ch) Cx(0x4284, ch) /* IOSAV sequence level control */ -#define IOSAV_DATA_CTL_ch(ch) Cx(0x4288, ch) /* Data control in IOSAV mode */ -#define IOSAV_STATUS_ch(ch) Cx(0x428c, ch) /* State of the IOSAV sequence machine */ -#define TC_ZQCAL_ch(ch) Cx(0x4290, ch) /* ZQCAL control register */ -#define TC_RFP_ch(ch) Cx(0x4294, ch) /* Refresh Parameters */ -#define TC_RFTP_ch(ch) Cx(0x4298, ch) /* Refresh Timing Parameters */ -#define TC_MR2_SHADOW_ch(ch) Cx(0x429c, ch) /* MR2 shadow - copy of DDR configuration */ -#define MC_INIT_STATE_ch(ch) Cx(0x42a0, ch) /* IOSAV mode control */ -#define TC_SRFTP_ch(ch) Cx(0x42a4, ch) /* Self-refresh timing parameters */ -#define IOSAV_ERROR_ch(ch) Cx(0x42ac, ch) /* Data vector count of the first error */ -#define IOSAV_DC_MASK_ch(ch) Cx(0x42b0, ch) /* IOSAV data check masking */ - -#define IOSAV_By_ERROR_COUNT_ch(ch, y) CxLy(0x4340, ch, y) /* Per-byte 16-bit error count */ -#define IOSAV_G_ERROR_COUNT_ch(ch) Cx(0x4364, ch) /* Global 16-bit error count */ - -#define PM_TRML_M_CONFIG_ch(ch) Cx(0x4380, ch) /* Thermal mode configuration */ -#define PM_CMD_PWR_ch(ch) Cx(0x4384, ch) /* Power contribution of commands */ -#define PM_BW_LIMIT_CONFIG_ch(ch) Cx(0x4388, ch) /* Bandwidth throttling on overtemp */ -#define SC_WDBWM_ch(ch) Cx(0x438c, ch) /* Watermarks and starvation counter */ - -/* MC Channel Broadcast registers */ -#define TC_DBP 0x4c00 /* Timings: BIN */ -#define TC_RAP 0x4c04 /* Timings: Regular access */ -#define TC_RWP 0x4c08 /* Timings: Read / Write */ -#define TC_OTHP 0x4c0c /* Timings: Other parameters */ -#define SCHED_SECOND_CBIT 0x4c1c /* More chicken bits */ -#define SCHED_CBIT 0x4c20 /* Chicken bits in scheduler */ -#define SC_ROUNDT_LAT 0x4c24 /* Round-trip latency per rank */ -#define SC_IO_LATENCY 0x4c28 /* IO Latency Configuration */ -#define SCRAMBLING_SEED_1 0x4c34 /* Scrambling seed 1 */ -#define SCRAMBLING_SEED_2_LOW 0x4c38 /* Scrambling seed 2 low */ -#define SCRAMBLING_SEED_2_HIGH 0x4c3c /* Scrambling seed 2 high */ - -#define IOSAV_By_BW_SERROR(y) Ly(0x4c40, y) /* IOSAV Bytelane Bit-wise error */ -#define IOSAV_By_BW_MASK(y) Ly(0x4c80, y) /* IOSAV Bytelane Bit-wise compare mask */ - -/* - * Defines the number of transactions (non-VC1 RD CAS commands) between two priority ticks. - * Different counters for transactions that are issued on the ring agents (core or GT) and - * transactions issued in the SA. - */ -#define SC_PR_CNT_CONFIG 0x4ca8 -#define SC_PCIT 0x4cac /* Page-close idle timer setup - 8 bits */ -#define PM_PDWN_CONFIG 0x4cb0 /* Power-down (CKE-off) operation config */ -#define ECC_INJECT_COUNT 0x4cb4 /* ECC error injection count */ -#define ECC_DFT 0x4cb8 /* ECC DFT features (ECC4ANA, error inject) */ -#define SC_WR_ADD_DELAY 0x4cd0 /* Extra WR delay to overcome WR-flyby issue */ - -/* Opportunistic reads configuration during write-major-mode (WMM) */ -#define WMM_READ_CONFIG 0x4cd4 /** WARNING: Only exists on IVB! */ - -#define IOSAV_By_BW_SERROR_C(y) Ly(0x4d40, y) /* IOSAV Bytelane Bit-wise error */ - -#define IOSAV_n_SP_CMD_ADDR(n) Ly(0x4e00, n) /* Sub-sequence special command address */ -#define IOSAV_n_ADDR_UPD(n) Ly(0x4e10, n) /* Address update after command execution */ -#define IOSAV_n_SP_CMD_CTL(n) Ly(0x4e20, n) /* Command signals in sub-sequence command */ -#define IOSAV_n_SUBSEQ_CTL(n) Ly(0x4e30, n) /* Sub-sequence command parameter control */ -#define IOSAV_n_ADDRESS_LFSR(n) Ly(0x4e40, n) /* 23-bit LFSR value of the sequence */ - -#define PM_THML_STAT 0x4e80 /* Thermal status of each rank */ -#define IOSAV_SEQ_CTL 0x4e84 /* IOSAV sequence level control */ -#define IOSAV_DATA_CTL 0x4e88 /* Data control in IOSAV mode */ -#define IOSAV_STATUS 0x4e8c /* State of the IOSAV sequence machine */ -#define TC_ZQCAL 0x4e90 /* ZQCAL control register */ -#define TC_RFP 0x4e94 /* Refresh Parameters */ -#define TC_RFTP 0x4e98 /* Refresh Timing Parameters */ -#define TC_MR2_SHADOW 0x4e9c /* MR2 shadow - copy of DDR configuration */ -#define MC_INIT_STATE 0x4ea0 /* IOSAV mode control */ -#define TC_SRFTP 0x4ea4 /* Self-refresh timing parameters */ - -/* - * Auxiliary register in mcmnts synthesis FUB (Functional Unit Block). Additionally, this - * register is also used to enable IOSAV_n_SP_CMD_ADDR optimization on Ivy Bridge. - */ -#define MCMNTS_SPARE 0x4ea8 /** WARNING: Reserved, use only on IVB! */ - -#define IOSAV_ERROR 0x4eac /* Data vector count of the first error */ -#define IOSAV_DC_MASK 0x4eb0 /* IOSAV data check masking */ - -#define IOSAV_By_ERROR_COUNT(y) Ly(0x4f40, y) /* Per-byte 16-bit error counter */ -#define IOSAV_G_ERROR_COUNT 0x4f64 /* Global 16-bit error counter */ - -#define PM_TRML_M_CONFIG 0x4f80 /* Thermal mode configuration */ -#define PM_CMD_PWR 0x4f84 /* Power contribution of commands */ -#define PM_BW_LIMIT_CONFIG 0x4f88 /* Bandwidth throttling on overtemperature */ -#define SC_WDBWM 0x4f8c /* Watermarks and starvation counter config */ - -#define MAD_CHNL 0x5000 /* Address Decoder Channel Configuration */ -#define MAD_DIMM_CH0 0x5004 /* Address Decode Channel 0 */ -#define MAD_DIMM_CH1 0x5008 /* Address Decode Channel 1 */ -#define MAD_DIMM_CH2 0x500c /* Address Decode Channel 2 (unused on SNB) */ -#define MAD_ZR 0x5014 /* Address Decode Zones */ -#define MCDECS_SPARE 0x5018 /* Spare register in mcdecs synthesis FUB */ -#define MCDECS_CBIT 0x501c /* Chicken bits in mcdecs synthesis FUB */ - -#define CHANNEL_HASH 0x5024 /** WARNING: Only exists on IVB! */ - -#define MC_INIT_STATE_G 0x5030 /* High-level behavior in IOSAV mode */ -#define MRC_REVISION 0x5034 /* MRC Revision */ -#define PM_DLL_CONFIG 0x5064 /* Memory Controller I/O DLL config */ -#define RCOMP_TIMER 0x5084 /* RCOMP evaluation timer register */ - -#define MC_LOCK 0x50fc /* Memory Controlller Lock register */ - -#define VTD1_BASE 0x5400 /* Base address for IGD */ -#define VTD2_BASE 0x5410 /* Base address for PEG, USB, SATA, etc. */ -#define PAIR_CTL 0x5418 /* Power Aware Interrupt Routing Control */ - -/* PAVP control register, undocumented. Different from PAVPC on PCI config space. */ -#define MMIO_PAVP_CTL 0x5500 /* Bit 0 locks PAVP settings */ - -#define MEM_TRML_ESTIMATION_CONFIG 0x5880 -#define MEM_TRML_THRESHOLDS_CONFIG 0x5888 -#define MEM_TRML_INTERRUPT 0x58a8 - -#define MC_TURBO_PL1 0x59a0 /* Turbo Power Limit 1 parameters */ -#define MC_TURBO_PL2 0x59a4 /* Turbo Power Limit 2 parameters */ - -#define SSKPD_OK 0x5d10 /* 64-bit scratchpad register */ -#define SSKPD 0x5d14 /* 16bit (scratchpad) */ -#define BIOS_RESET_CPL 0x5da8 /* 8bit */ - -/* PCODE will sample SAPM-related registers at the end of Phase 4. */ -#define MC_BIOS_REQ 0x5e00 /* Memory frequency request register */ -#define MC_BIOS_DATA 0x5e04 /* Miscellaneous information for BIOS */ -#define SAPMCTL 0x5f00 /* Bit 3 enables DDR EPG (C7i) on IVB */ -#define M_COMP 0x5f08 /* Memory COMP control */ -#define SAPMTIMERS 0x5f10 /* SAPM timers in 10ns (100 MHz) units */ - -/* WARNING: Only applies to Sandy Bridge! */ -#define BANDTIMERS_SNB 0x5f18 /* MPLL and PPLL time to do self-banding */ - -/** WARNING: Only applies to Ivy Bridge! */ -#define SAPMTIMERS2_IVB 0x5f18 /** Extra latency for DDRIO EPG exit (C7i) */ -#define BANDTIMERS_IVB 0x5f20 /** MPLL and PPLL time to do self-banding */ +/* As there are many registers, define them on a separate file */ +#include "mchbar_regs.h" /* * EPBAR - Egress Port Root Complex Register Block */ -#define EPBAR8(x) (*((volatile u8 *)(DEFAULT_EPBAR + (x)))) +#define EPBAR8(x) (*((volatile u8 *)(DEFAULT_EPBAR + (x)))) #define EPBAR16(x) (*((volatile u16 *)(DEFAULT_EPBAR + (x)))) #define EPBAR32(x) (*((volatile u32 *)(DEFAULT_EPBAR + (x)))) @@ -388,7 +177,7 @@ enum platform_type { * DMIBAR */ -#define DMIBAR8(x) (*((volatile u8 *)(DEFAULT_DMIBAR + (x)))) +#define DMIBAR8(x) (*((volatile u8 *)(DEFAULT_DMIBAR + (x)))) #define DMIBAR16(x) (*((volatile u16 *)(DEFAULT_DMIBAR + (x)))) #define DMIBAR32(x) (*((volatile u32 *)(DEFAULT_DMIBAR + (x)))) @@ -436,7 +225,6 @@ enum platform_type { #ifndef __ASSEMBLER__ void intel_sandybridge_finalize_smm(void); - int bridge_silicon_revision(void); void systemagent_early_init(void); void sandybridge_init_iommu(void); @@ -444,8 +232,7 @@ void sandybridge_late_initialization(void); void northbridge_romstage_finalize(int s3resume); void early_init_dmi(void); -/* mainboard_early_init: Optional mainboard callback run after console init - but before raminit. */ +/* mainboard_early_init: Optional callback, run after console init but before raminit. */ void mainboard_early_init(int s3resume); int mainboard_should_reset_usb(int s3resume); void perform_raminit(int s3resume); @@ -454,7 +241,8 @@ enum platform_type get_platform_type(void); #include <device/device.h> struct acpi_rsdp; -unsigned long northbridge_write_acpi_tables(struct device *device, unsigned long start, struct acpi_rsdp *rsdp); +unsigned long northbridge_write_acpi_tables(struct device *device, unsigned long start, + struct acpi_rsdp *rsdp); #endif #endif |