diff options
Diffstat (limited to 'src/southbridge/amd/sb600/early_setup.c')
| -rw-r--r-- | src/southbridge/amd/sb600/early_setup.c | 636 |
1 files changed, 0 insertions, 636 deletions
diff --git a/src/southbridge/amd/sb600/early_setup.c b/src/southbridge/amd/sb600/early_setup.c deleted file mode 100644 index f68bfd51ee..0000000000 --- a/src/southbridge/amd/sb600/early_setup.c +++ /dev/null @@ -1,636 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2008 Advanced Micro Devices, 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. - */ - -#include <reset.h> -#include <arch/cpu.h> -#include "sb600.h" -#include "smbus.c" - -#define SMBUS_IO_BASE 0x1000 /* Is it a temporary SMBus I/O base address? */ - /*SIZE 0x40 */ - -static void pmio_write(u8 reg, u8 value) -{ - outb(reg, PM_INDEX); - outb(value, PM_INDEX + 1); -} - -static u8 pmio_read(u8 reg) -{ - outb(reg, PM_INDEX); - return inb(PM_INDEX + 1); -} - -/* RPR 2.1: Get SB ASIC Revision. */ -static u8 get_sb600_revision(void) -{ - pci_devfn_t dev; - dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); - - if (dev == PCI_DEV_INVALID) { - die("SMBUS controller not found\n"); - /* NOT REACHED */ - } - return pci_read_config8(dev, 0x08); -} - - -/*************************************** -* Legacy devices are mapped to LPC space. -* Serial port 0, 1 -* KBC Port -* ACPI Micro-controller port -* This function does not change port 0x80 decoding. -* Console output through any port besides 0x2f8/0x3f8 is unsupported. -* If you use FWH ROMs, you have to setup IDSEL. -* Reviewed-by: Carl-Daniel Hailfinger -* Reviewed against AMD SB600 Register Reference Manual rev. 3.03, section 3.1 -* (LPC ISA Bridge) -***************************************/ -static void sb600_lpc_init(void) -{ - u8 reg8; - u32 reg32; - pci_devfn_t dev; - - dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); /* SMBUS controller */ - /* NOTE: Set BootTimerDisable, otherwise it would keep rebooting!! - * This bit has no meaning if debug strap is not enabled. So if the - * board keeps rebooting and the code fails to reach here, we could - * disable the debug strap first. */ - reg32 = pci_read_config32(dev, 0x4C); - reg32 |= 1 << 31; - pci_write_config32(dev, 0x4C, reg32); - - /* Enable lpc controller */ - reg32 = pci_read_config32(dev, 0x64); - reg32 |= 1 << 20; - pci_write_config32(dev, 0x64, reg32); - - dev = pci_locate_device(PCI_ID(0x1002, 0x438d), 0); /* LPC Controller */ - /* Decode port 0x3f8-0x3ff (Serial 0), 0x2f8-0x2ff (Serial 1) */ - reg8 = pci_read_config8(dev, 0x44); - reg8 |= (1 << 6) | (1 << 7); - pci_write_config8(dev, 0x44, reg8); - - /* Decode port 0x60 & 0x64 (PS/2 keyboard) and port 0x62 & 0x66 (ACPI)*/ - reg8 = pci_read_config8(dev, 0x47); - reg8 |= (1 << 5) | (1 << 6); - pci_write_config8(dev, 0x47, reg8); - - /* Super I/O, RTC */ - reg8 = pci_read_config8(dev, 0x48); - /* Decode ports 0x2e-0x2f, 0x4e-0x4f (SuperI/O configuration) */ - reg8 |= (1 << 1) | (1 << 0); - /* Decode port 0x70-0x73 (RTC) */ - reg8 |= (1 << 6); - pci_write_config8(dev, 0x48, reg8); -} - -/* what is its usage? */ -static u32 get_sbdn(u32 bus) -{ - pci_devfn_t dev; - - /* Find the device. */ - dev = pci_locate_device_on_bus(PCI_ID(0x1002, 0x4385), bus); - return (dev >> 15) & 0x1f; -} - -static u8 dual_core(void) -{ - return (pci_read_config32(PCI_DEV(0, 0x18, 3), 0xE8) & (0x3<<12)) != 0; -} - -/* - * SB600 VFSMAF (VID/FID System Management Action Field) is 010b by default. - * RPR 2.3.3 C-state and VID/FID change for the K8 platform. -*/ -static void enable_fid_change_on_sb(u32 sbbusn, u32 sbdn) -{ - u8 byte; - byte = pmio_read(0x9a); - byte &= ~0x34; - if (dual_core()) - byte |= 0x34; - else - byte |= 0x04; - pmio_write(0x9a, byte); - - byte = pmio_read(0x8f); - byte &= ~0x30; - byte |= 0x20; - pmio_write(0x8f, byte); - - pmio_write(0x8b, 0x01); - pmio_write(0x8a, 0x90); - - if (get_sb600_revision() > 0x13) - pmio_write(0x88, 0x10); - else - pmio_write(0x88, 0x06); - - byte = pmio_read(0x7c); - byte &= ~0x01; - byte |= 0x01; - pmio_write(0x7c, byte); - - /* Must be 0 for K8 platform. */ - byte = pmio_read(0x68); - byte &= ~0x01; - pmio_write(0x68, byte); - /* Must be 0 for K8 platform. */ - byte = pmio_read(0x8d); - byte &= ~(1<<6); - pmio_write(0x8d, byte); - - byte = pmio_read(0x61); - byte &= ~0x04; - pmio_write(0x61, byte); - - byte = pmio_read(0x42); - byte &= ~0x04; - pmio_write(0x42, byte); - - if (get_sb600_revision() == 0x14) { - pmio_write(0x89, 0x10); - - byte = pmio_read(0x52); - byte |= 0x80; - pmio_write(0x52, byte); - } -} - -void do_hard_reset(void) -{ - set_bios_reset(); - - /* full reset */ - outb(0x0a, 0x0cf9); - outb(0x0e, 0x0cf9); -} - -void do_soft_reset(void) -{ - set_bios_reset(); - /* link reset */ - outb(0x06, 0x0cf9); -} - -void sb600_pci_port80(void) -{ - u8 byte; - pci_devfn_t dev; - - /* P2P Bridge */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4384), 0); - - /* Chip Control: Enable subtractive decoding */ - byte = pci_read_config8(dev, 0x40); - byte |= 1 << 5; - pci_write_config8(dev, 0x40, byte); - - /* Misc Control: Enable subtractive decoding if 0x40 bit 5 is set */ - byte = pci_read_config8(dev, 0x4B); - byte |= 1 << 7; - pci_write_config8(dev, 0x4B, byte); - - /* The same IO Base and IO Limit here is meaningful because we set the - * bridge to be subtractive. During early setup stage, we have to make - * sure that data can go through port 0x80. - */ - /* IO Base: 0xf000 */ - byte = pci_read_config8(dev, 0x1C); - byte |= 0xF << 4; - pci_write_config8(dev, 0x1C, byte); - - /* IO Limit: 0xf000 */ - byte = pci_read_config8(dev, 0x1D); - byte |= 0xF << 4; - pci_write_config8(dev, 0x1D, byte); - - /* PCI Command: Enable IO response */ - byte = pci_read_config8(dev, 0x04); - byte |= 1 << 0; - pci_write_config8(dev, 0x04, byte); - - /* LPC controller */ - dev = pci_locate_device(PCI_ID(0x1002, 0x438D), 0); - - byte = pci_read_config8(dev, 0x4A); - byte &= ~(1 << 5); /* disable lpc port 80 */ - pci_write_config8(dev, 0x4A, byte); -} - -void sb600_lpc_port80(void) -{ - u8 byte; - pci_devfn_t dev; - u32 reg32; - - /* Enable LPC controller */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); - reg32 = pci_read_config32(dev, 0x64); - reg32 |= 0x00100000; /* lpcEnable */ - pci_write_config32(dev, 0x64, reg32); - - /* Enable port 80 LPC decode in pci function 3 configuration space. */ - dev = pci_locate_device(PCI_ID(0x1002, 0x438d), 0); - byte = pci_read_config8(dev, 0x4a); - byte |= 1 << 5; /* enable port 80 */ - pci_write_config8(dev, 0x4a, byte); -} - -/* sbDevicesPorInitTable */ -static void sb600_devices_por_init(void) -{ - pci_devfn_t dev; - u8 byte; - - printk(BIOS_INFO, "sb600_devices_por_init()\n"); - /* SMBus Device, BDF:0-20-0 */ - printk(BIOS_INFO, "sb600_devices_por_init(): SMBus Device, BDF:0-20-0\n"); - dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); - - if (dev == PCI_DEV_INVALID) { - die("SMBUS controller not found\n"); - /* NOT REACHED */ - } - printk(BIOS_INFO, "SMBus controller enabled, sb revision is 0x%x\n", - get_sb600_revision()); - - /* sbPorAtStartOfTblCfg */ - /* Set A-Link bridge access address. This address is set at device 14h, function 0, register 0xf0. - * This is an I/O address. The I/O address must be on 16-byte boundary. */ - pci_write_config32(dev, 0xf0, AB_INDX); - - /* To enable AB/BIF DMA access, a specific register inside the BIF register space needs to be configured first. */ - /*Enables the SB600 to send transactions upstream over A-Link Express interface. */ - axcfg_reg(0x04, 1 << 2, 1 << 2); - axindxc_reg(0x21, 0xff, 0); - - /* 2.3.5:Enabling Non-Posted Memory Write for the K8 Platform */ - axindxc_reg(0x10, 1 << 9, 1 << 9); - /* END of sbPorAtStartOfTblCfg */ - - /* sbDevicesPorInitTables */ - /* set smbus iobase */ - pci_write_config32(dev, 0x10, SMBUS_IO_BASE | 1); - - /* enable smbus controller interface */ - byte = pci_read_config8(dev, 0xd2); - byte |= (1 << 0); - pci_write_config8(dev, 0xd2, byte); - - /* set smbus 1, ASF 2.0 (Alert Standard Format), iobase */ - pci_write_config16(dev, 0x58, SMBUS_IO_BASE | 0x11); - - /* TODO: I don't know the usage of followed two lines. I copied them from CIM. */ - pci_write_config8(dev, 0x0a, 0x1); - pci_write_config8(dev, 0x0b, 0x6); - - /* KB2RstEnable */ - pci_write_config8(dev, 0x40, 0xd4); - - /* Enable ISA Address 0-960K decoding */ - pci_write_config8(dev, 0x48, 0x0f); - - /* Enable ISA Address 0xC0000-0xDFFFF decode */ - pci_write_config8(dev, 0x49, 0xff); - - /* Enable decode cycles to IO C50, C51, C52 GPM controls. */ - byte = pci_read_config8(dev, 0x41); - byte &= 0x80; - byte |= 0x33; - pci_write_config8(dev, 0x41, byte); - - /* Legacy DMA Prefetch Enhancement, CIM masked it. */ - /* pci_write_config8(dev, 0x43, 0x1); */ - - /* Disabling Legacy USB Fast SMI# */ - byte = pci_read_config8(dev, 0x62); - byte |= 0x24; - pci_write_config8(dev, 0x62, byte); - - /* Features Enable */ - pci_write_config32(dev, 0x64, 0x829E7DBF); /* bit10: Enables the HPET interrupt. */ - - /* SerialIrq Control */ - pci_write_config8(dev, 0x69, 0x90); - - /* Test Mode, PCIB_SReset_En Mask is set. */ - pci_write_config8(dev, 0x6c, 0x20); - - /* IO Address Enable, CIM set 0x78 only and masked 0x79. */ - /*pci_write_config8(dev, 0x79, 0x4F); */ - pci_write_config8(dev, 0x78, 0xFF); - - /* This register is not used on sb600. It came from older chipset. */ - /*pci_write_config8(dev, 0x95, 0xFF); */ - - /* Set smbus iospace enable, I don't know why write 0x04 into reg5 that is reserved */ - pci_write_config16(dev, 0x4, 0x0407); - - /* clear any lingering errors, so the transaction will run */ - outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT); - - /* IDE Device, BDF:0-20-1 */ - printk(BIOS_INFO, "sb600_devices_por_init(): IDE Device, BDF:0-20-1\n"); - dev = pci_locate_device(PCI_ID(0x1002, 0x438C), 0); - /* Disable prefetch */ - byte = pci_read_config8(dev, 0x63); - byte |= 0x1; - pci_write_config8(dev, 0x63, byte); - - /* LPC Device, BDF:0-20-3 */ - printk(BIOS_INFO, "sb600_devices_por_init(): LPC Device, BDF:0-20-3\n"); - dev = pci_locate_device(PCI_ID(0x1002, 0x438D), 0); - /* DMA enable */ - pci_write_config8(dev, 0x40, 0x04); - /* LPC Sync Timeout */ - pci_write_config8(dev, 0x49, 0xFF); - - /* Enable Tpm12_en and Tpm_legacy. I don't know what is its usage and copied from CIM. */ - pci_write_config8(dev, 0x7C, 0x05); - - /* P2P Bridge, BDF:0-20-4, the configuration of the registers in this dev are copied from CIM, - * TODO: I don't know what are their mean? */ - printk(BIOS_INFO, "sb600_devices_por_init(): P2P Bridge, BDF:0-20-4\n"); - dev = pci_locate_device(PCI_ID(0x1002, 0x4384), 0); - /* I don't know why CIM tried to write into a read-only reg! */ - /*pci_write_config8(dev, 0x0c, 0x20); */ - - /* Arbiter enable. */ - pci_write_config8(dev, 0x43, 0xff); - - /* Set PCDMA request into height priority list. */ - /* pci_write_config8(dev, 0x49, 0x1); */ - - pci_write_config8(dev, 0x40, 0x26); - - /* I don't know why CIM set reg0x1c as 0x11. - * System will block at sdram_initialize() if I set it before call sdram_initialize(). - * If it is necessary to set reg0x1c as 0x11, please call this function after sdram_initialize(). - * pci_write_config8(dev, 0x1c, 0x11); - * pci_write_config8(dev, 0x1d, 0x11);*/ - - /*CIM set this register; but I didn't find its description in RPR. - On DBM690T platform, I didn't find different between set and skip this register. - But on Filbert platform, the DEBUG message from serial port on Peanut board can't be displayed - after the bit0 of this register is set. - pci_write_config8(dev, 0x04, 0x21); - */ - pci_write_config8(dev, 0x0d, 0x40); - pci_write_config8(dev, 0x1b, 0x40); - /* Enable PCIB_DUAL_EN_UP will fix potential problem with PCI cards. */ - pci_write_config8(dev, 0x50, 0x01); - - /* SATA Device, BDF:0-18-0, Non-Raid-5 SATA controller */ - printk(BIOS_INFO, "sb600_devices_por_init(): SATA Device, BDF:0-18-0\n"); - dev = pci_locate_device(PCI_ID(0x1002, 0x4380), 0); - - /*PHY Global Control, we are using A14. - * default: 0x2c40 for ASIC revision A12 and below - * 0x2c00 for ASIC revision A13 and above.*/ - pci_write_config16(dev, 0x86, 0x2C00); - - /* PHY Port0-3 Control */ - pci_write_config32(dev, 0x88, 0xB400DA); - pci_write_config32(dev, 0x8c, 0xB400DA); - pci_write_config32(dev, 0x90, 0xB400DA); - pci_write_config32(dev, 0x94, 0xB400DA); - - /* Port0-3 BIST Control/Status */ - pci_write_config8(dev, 0xa5, 0xB8); - pci_write_config8(dev, 0xad, 0xB8); - pci_write_config8(dev, 0xb5, 0xB8); - pci_write_config8(dev, 0xbd, 0xB8); -} - -/* sbPmioPorInitTable, Pre-initializing PMIO register space -* The power management (PM) block is resident in the PCI/LPC/ISA bridge. -* The PM regs are accessed via IO mapped regs 0xcd6 and 0xcd7. -* The index address is first programmed into IO reg 0xcd6. -* Read or write values are accessed through IO reg 0xcd7. -*/ -static void sb600_pmio_por_init(void) -{ - u8 byte; - - printk(BIOS_INFO, "sb600_pmio_por_init()\n"); - /* K8KbRstEn, KB_RST# control for K8 system. */ - byte = pmio_read(0x66); - byte |= 0x20; - pmio_write(0x66, byte); - - /* RPR2.3.4 S3/S4/S5 Function for the K8 Platform. */ - byte = pmio_read(0x52); - byte &= 0xc0; - byte |= 0x08; - pmio_write(0x52, byte); - - /* C state enable and SLP enable in C states. */ - byte = pmio_read(0x67); - byte |= 0x6; - pmio_write(0x67, byte); - - /* CIM sets 0x0e, but bit2 is for P4 system. */ - byte = pmio_read(0x68); - byte &= 0xf0; - byte |= 0x0c; - pmio_write(0x68, byte); - - /* Watch Dog Timer Control - * Set watchdog time base to 0xfec000f0 to avoid SCSI card boot failure. - * But I don't find WDT is enabled in SMBUS 0x41 bit3 in CIM. - */ - pmio_write(0x6c, 0xf0); - pmio_write(0x6d, 0x00); - pmio_write(0x6e, 0xc0); - pmio_write(0x6f, 0xfe); - - /* rpr2.14: Enables HPET periodical mode */ - byte = pmio_read(0x9a); - byte |= 1 << 7; - pmio_write(0x9a, byte); - byte = pmio_read(0x9f); - byte |= 1 << 5; - pmio_write(0x9f, byte); - byte = pmio_read(0x9e); - byte |= (1 << 6) | (1 << 7); - pmio_write(0x9e, byte); - - /* rpr2.14: Hides SM bus controller Bar1 where stores HPET MMIO base address */ - /* We have to clear this bit here, otherwise the kernel hangs. */ - byte = pmio_read(0x55); - byte |= 1 << 7; - byte |= 1 << 1; - pmio_write(0x55, byte); - - /* rpr2.14: Make HPET MMIO decoding controlled by the memory enable bit in command register of LPC ISA bridge */ - byte = pmio_read(0x52); - byte |= 1 << 6; - pmio_write(0x52, byte); - - /* rpr2.22: PLL Reset */ - byte = pmio_read(0x86); - byte |= 1 << 7; - pmio_write(0x86, byte); - - /* rpr2.3.3 */ - /* This provides 16us delay before the assertion of LDTSTP# when C3 is entered. - * The delay will allow USB DMA to go on in a continuous manner - */ - pmio_write(0x89, 0x10); - /* Set this bit to allow pop-up request being latched during the minimum LDTSTP# assertion time */ - byte = pmio_read(0x52); - byte |= 1 << 7; - pmio_write(0x52, byte); - - /* rpr2.15: ASF Remote Control Action */ - byte = pmio_read(0x9f); - byte |= 1 << 6; - pmio_write(0x9f, byte); - - /* rpr2.19: Enabling Spread Spectrum */ - byte = pmio_read(0x42); - byte |= 1 << 7; - pmio_write(0x42, byte); -} - -/* -* Compliant with CIM_48's sbPciCfg. -* Add any south bridge setting. -*/ -static void sb600_pci_cfg(void) -{ - pci_devfn_t dev; - u8 byte; - - /* SMBus Device, BDF:0-20-0 */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); - /* Enable the hidden revision ID, available after A13. */ - byte = pci_read_config8(dev, 0x70); - byte |= (1 << 8); - pci_write_config8(dev, 0x70, byte); - /* rpr2.20 Disable Timer IRQ Enhancement for proper operation of the 8254 timer, 0xae[5]. */ - byte = pci_read_config8(dev, 0xae); - byte |= (1 << 5); - pci_write_config8(dev, 0xae, byte); - - /* Enable watchdog decode timer */ - byte = pci_read_config8(dev, 0x41); - byte |= (1 << 3); - pci_write_config8(dev, 0x41, byte); - - /* Set to 1 to reset USB on the software (such as IO-64 or IO-CF9 cycles) - * generated PCIRST#. */ - byte = pmio_read(0x65); - byte |= (1 << 4); - pmio_write(0x65, byte); - /*For A13 and above. */ - if (get_sb600_revision() > 0x12) { - /* rpr2.16 C-State Reset, PMIO 0x9f[7]. */ - byte = pmio_read(0x9f); - byte |= (1 << 7); - pmio_write(0x9f, byte); - /* rpr2.17 PCI Clock Period will increase to 30.8ns. 0x53[7]. */ - byte = pmio_read(0x53); - byte |= (1 << 7); - pmio_write(0x53, byte); - } - - /* IDE Device, BDF:0-20-1 */ - dev = pci_locate_device(PCI_ID(0x1002, 0x438C), 0); - /* Enable IDE Explicit prefetch, 0x63[0] clear */ - byte = pci_read_config8(dev, 0x63); - byte &= 0xfe; - pci_write_config8(dev, 0x63, byte); - - /* LPC Device, BDF:0-20-3 */ - dev = pci_locate_device(PCI_ID(0x1002, 0x438D), 0); - /* rpr7.2 Enabling LPC DMA function. */ - byte = pci_read_config8(dev, 0x40); - byte |= (1 << 2); - pci_write_config8(dev, 0x40, byte); - /* rpr7.3 Disabling LPC TimeOut. 0x48[7] clear. */ - byte = pci_read_config8(dev, 0x48); - byte &= 0x7f; - pci_write_config8(dev, 0x48, byte); - /* rpr7.5 Disabling LPC MSI Capability, 0x78[1] clear. */ - byte = pci_read_config8(dev, 0x78); - byte &= 0xfd; - pci_write_config8(dev, 0x78, byte); - - /* SATA Device, BDF:0-18-0, Non-Raid-5 SATA controller */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4380), 0); - /* rpr6.8 Disabling SATA MSI Capability, for A13 and above, 0x42[7]. */ - if (0x12 < get_sb600_revision()) { - u32 reg32; - reg32 = pci_read_config32(dev, 0x40); - reg32 |= (1 << 23); - pci_write_config32(dev, 0x40, reg32); - } - - /* EHCI Device, BDF:0-19-5, ehci usb controller */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4386), 0); - /* rpr5.10 Disabling USB EHCI MSI Capability. 0x50[6]. */ - byte = pci_read_config8(dev, 0x50); - byte |= (1 << 6); - pci_write_config8(dev, 0x50, byte); - - /* OHCI0 Device, BDF:0-19-0, ohci usb controller #0 */ - dev = pci_locate_device(PCI_ID(0x1002, 0x4387), 0); - /* rpr5.11 Disabling USB OHCI MSI Capability. 0x40[12:8]=0x1f. */ - byte = pci_read_config8(dev, 0x41); - byte |= 0x1f; - pci_write_config8(dev, 0x41, byte); - -} - -/* -* Compliant with CIM_48's ATSBPowerOnResetInitJSP -*/ -static void sb600_por_init(void) -{ - /* sbDevicesPorInitTable + sbK8PorInitTable */ - sb600_devices_por_init(); - - /* sbPmioPorInitTable + sbK8PmioPorInitTable */ - sb600_pmio_por_init(); -} - -/* -* Compliant with CIM_48's AtiSbBeforePciInit -* It should be called during early POST after memory detection and BIOS shadowing but before PCI bus enumeration. -*/ -static void sb600_before_pci_init(void) -{ - sb600_pci_cfg(); -} - -/* -* This function should be called after enable_sb600_smbus(). -*/ -static void sb600_early_setup(void) -{ - printk(BIOS_INFO, "sb600_early_setup()\n"); - sb600_por_init(); -} - -static int smbus_read_byte(u32 device, u32 address) -{ - return do_smbus_read_byte(SMBUS_IO_BASE, device, address); -} |