/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #include #include #include #include #include #include #include #include #include "chip.h" #include "iobp.h" #include "pch.h" #include #include #include #include #include #include #define NMI_OFF 0 typedef struct southbridge_intel_lynxpoint_config config_t; /** * Set miscellanous static southbridge features. * * @param dev PCI device with I/O APIC control registers */ static void pch_enable_ioapic(struct device *dev) { u32 reg32; /* Assign unique bus/dev/fn for I/O APIC */ pci_write_config16(dev, LPC_IBDF, PCH_IOAPIC_PCI_BUS << 8 | PCH_IOAPIC_PCI_SLOT << 3); set_ioapic_id(VIO_APIC_VADDR, 0x02); /* affirm full set of redirection table entries ("write once") */ reg32 = io_apic_read(VIO_APIC_VADDR, 0x01); if (pch_is_lp()) { /* PCH-LP has 39 redirection entries */ reg32 &= ~0x00ff0000; reg32 |= 0x00270000; } io_apic_write(VIO_APIC_VADDR, 0x01, reg32); } static void pch_enable_serial_irqs(struct device *dev) { /* Set packet length and toggle silent mode bit for one frame. */ pci_write_config8(dev, SERIRQ_CNTL, (1 << 7) | (1 << 6) | ((21 - 17) << 2) | (0 << 0)); #if !CONFIG(SERIRQ_CONTINUOUS_MODE) pci_write_config8(dev, SERIRQ_CNTL, (1 << 7) | (0 << 6) | ((21 - 17) << 2) | (0 << 0)); #endif } static void enable_hpet(struct device *const dev) { u32 reg32; size_t i; /* Assign unique bus/dev/fn for each HPET */ for (i = 0; i < 8; ++i) pci_write_config16(dev, LPC_HnBDF(i), PCH_HPET_PCI_BUS << 8 | PCH_HPET_PCI_SLOT << 3 | i); /* Move HPET to default address 0xfed00000 and enable it */ reg32 = RCBA32(HPTC); reg32 |= (1 << 7); // HPET Address Enable reg32 &= ~(3 << 0); RCBA32(HPTC) = reg32; /* Read it back to stick. It's affected by posted write syndrome. */ RCBA32(HPTC); } /* PIRQ[n]_ROUT[3:0] - PIRQ Routing Control * 0x00 - 0000 = Reserved * 0x01 - 0001 = Reserved * 0x02 - 0010 = Reserved * 0x03 - 0011 = IRQ3 * 0x04 - 0100 = IRQ4 * 0x05 - 0101 = IRQ5 * 0x06 - 0110 = IRQ6 * 0x07 - 0111 = IRQ7 * 0x08 - 1000 = Reserved * 0x09 - 1001 = IRQ9 * 0x0A - 1010 = IRQ10 * 0x0B - 1011 = IRQ11 * 0x0C - 1100 = IRQ12 * 0x0D - 1101 = Reserved * 0x0E - 1110 = IRQ14 * 0x0F - 1111 = IRQ15 * PIRQ[n]_ROUT[7] - PIRQ Routing Control * 0x80 - The PIRQ is not routed. */ static void pch_pirq_init(struct device *dev) { struct device *irq_dev; const uint8_t pirq = 0x80; pci_write_config8(dev, PIRQA_ROUT, pirq); pci_write_config8(dev, PIRQB_ROUT, pirq); pci_write_config8(dev, PIRQC_ROUT, pirq); pci_write_config8(dev, PIRQD_ROUT, pirq); pci_write_config8(dev, PIRQE_ROUT, pirq); pci_write_config8(dev, PIRQF_ROUT, pirq); pci_write_config8(dev, PIRQG_ROUT, pirq); pci_write_config8(dev, PIRQH_ROUT, pirq); /* Eric Biederman once said we should let the OS do this. * I am not so sure anymore he was right. */ for (irq_dev = all_devices; irq_dev; irq_dev = irq_dev->next) { u8 int_pin = 0, int_line = 0; if (!irq_dev->enabled || irq_dev->path.type != DEVICE_PATH_PCI) continue; int_pin = pci_read_config8(irq_dev, PCI_INTERRUPT_PIN); switch (int_pin) { case 1: /* INTA# */ case 2: /* INTB# */ case 3: /* INTC# */ case 4: /* INTD# */ int_line = pirq; break; } if (!int_line) continue; pci_write_config8(irq_dev, PCI_INTERRUPT_LINE, int_line); } } static void pch_gpi_routing(struct device *dev, config_t *config) { u32 reg32 = 0; /* An array would be much nicer here, or some * other method of doing this. */ reg32 |= (config->gpi0_routing & 0x03) << 0; reg32 |= (config->gpi1_routing & 0x03) << 2; reg32 |= (config->gpi2_routing & 0x03) << 4; reg32 |= (config->gpi3_routing & 0x03) << 6; reg32 |= (config->gpi4_routing & 0x03) << 8; reg32 |= (config->gpi5_routing & 0x03) << 10; reg32 |= (config->gpi6_routing & 0x03) << 12; reg32 |= (config->gpi7_routing & 0x03) << 14; reg32 |= (config->gpi8_routing & 0x03) << 16; reg32 |= (config->gpi9_routing & 0x03) << 18; reg32 |= (config->gpi10_routing & 0x03) << 20; reg32 |= (config->gpi11_routing & 0x03) << 22; reg32 |= (config->gpi12_routing & 0x03) << 24; reg32 |= (config->gpi13_routing & 0x03) << 26; reg32 |= (config->gpi14_routing & 0x03) << 28; reg32 |= (config->gpi15_routing & 0x03) << 30; pci_write_config32(dev, GPIO_ROUT, reg32); } static void pch_power_options(struct device *dev) { u8 reg8; u16 reg16; u32 reg32; const char *state; u16 pmbase = get_pmbase(); /* Which state do we want to goto after g3 (power restored)? * 0 == S0 Full On * 1 == S5 Soft Off * * If the option is not existent (Laptops), use Kconfig setting. */ const unsigned int pwr_on = get_uint_option("power_on_after_fail", CONFIG_MAINBOARD_POWER_FAILURE_STATE); reg16 = pci_read_config16(dev, GEN_PMCON_3); reg16 &= 0xfffe; switch (pwr_on) { case MAINBOARD_POWER_OFF: reg16 |= 1; state = "off"; break; case MAINBOARD_POWER_ON: reg16 &= ~1; state = "on"; break; case MAINBOARD_POWER_KEEP: reg16 &= ~1; state = "state keep"; break; default: state = "undefined"; } reg16 &= ~(3 << 4); /* SLP_S4# Assertion Stretch 4s */ reg16 |= (1 << 3); /* SLP_S4# Assertion Stretch Enable */ reg16 &= ~(1 << 10); reg16 |= (1 << 11); /* SLP_S3# Min Assertion Width 50ms */ reg16 |= (1 << 12); /* Disable SLP stretch after SUS well */ pci_write_config16(dev, GEN_PMCON_3, reg16); printk(BIOS_INFO, "Set power %s after power failure.\n", state); /* Set up NMI on errors. */ reg8 = inb(0x61); reg8 &= 0x0f; /* Higher Nibble must be 0 */ reg8 &= ~(1 << 3); /* IOCHK# NMI Enable */ // reg8 &= ~(1 << 2); /* PCI SERR# Enable */ reg8 |= (1 << 2); /* PCI SERR# Disable for now */ outb(reg8, 0x61); reg8 = inb(0x70); const unsigned int nmi_option = get_uint_option("nmi", NMI_OFF); if (nmi_option) { printk(BIOS_INFO, "NMI sources enabled.\n"); reg8 &= ~(1 << 7); /* Set NMI. */ } else { printk(BIOS_INFO, "NMI sources disabled.\n"); reg8 |= (1 << 7); /* Can't mask NMI from PCI-E and NMI_NOW */ } outb(reg8, 0x70); /* Enable CPU_SLP# and Intel Speedstep, set SMI# rate down */ reg16 = pci_read_config16(dev, GEN_PMCON_1); reg16 &= ~(3 << 0); // SMI# rate 1 minute reg16 &= ~(1 << 10); // Disable BIOS_PCI_EXP_EN for native PME pci_write_config16(dev, GEN_PMCON_1, reg16); if (dev->chip_info) { config_t *config = dev->chip_info; /* * Set the board's GPI routing on LynxPoint-H. * This is done as part of GPIO configuration on LynxPoint-LP. */ if (!pch_is_lp()) pch_gpi_routing(dev, config); /* GPE setup based on device tree configuration */ enable_all_gpe(config->gpe0_en_1, config->gpe0_en_2, config->gpe0_en_3, config->gpe0_en_4); /* SMI setup based on device tree configuration */ enable_alt_smi(config->alt_gp_smi_en); } /* Set up power management block and determine sleep mode */ reg32 = inl(pmbase + 0x04); // PM1_CNT reg32 &= ~(7 << 10); // SLP_TYP reg32 |= (1 << 0); // SCI_EN outl(reg32, pmbase + 0x04); /* Clear magic status bits to prevent unexpected wake */ reg32 = RCBA32(0x3310); reg32 |= (1 << 4) | (1 << 5) | (1 << 0); RCBA32(0x3310) = reg32; reg16 = RCBA16(0x3f02); reg16 &= ~0xf; RCBA16(0x3f02) = reg16; } static void configure_dmi_pm(struct device *dev) { struct device *const pcie_dev = pcidev_on_root(0x1c, 0); /* Additional PCH DMI programming steps */ /* EL0 */ u32 reg32 = 3 << 12; /* EL1 */ if (pcie_dev && !(pci_read_config8(pcie_dev, 0xf5) & 1 << 0)) reg32 |= 2 << 15; else reg32 |= 4 << 15; RCBA32_AND_OR(0x21a4, ~(7 << 15 | 7 << 12), reg32); RCBA32_AND_OR(0x2348, ~0xf, 0); /* Clear prior to enabling DMI ASPM */ RCBA32_AND_OR(0x2304, ~(1 << 10), 0); RCBA32_OR(0x21a4, 3 << 10); RCBA16(0x21a8) |= 3 << 0; /* Set again after enabling DMI ASPM */ RCBA32_OR(0x2304, 1 << 10); } /* LynxPoint PCH Power Management init */ static void lpt_pm_init(struct device *dev) { struct southbridge_intel_lynxpoint_config *config = dev->chip_info; struct device *const pcie_dev = pcidev_on_root(0x1c, 0); printk(BIOS_DEBUG, "LynxPoint H PM init\n"); /* Configure additional PM */ pci_write_config8(dev, 0xa9, 0x46); pci_or_config32(dev, PMIR, PMIR_CF9LOCK); /* Step 3 is skipped */ /* Program DMI Hardware Width Control (thermal throttling) */ u32 reg32 = 0; reg32 |= 1 << 0; /* DMI Thermal Sensor Autonomous Width Enable */ reg32 |= 0 << 4; /* Thermal Sensor 0 Target Width */ reg32 |= 1 << 6; /* Thermal Sensor 1 Target Width */ reg32 |= 1 << 8; /* Thermal Sensor 2 Target Width */ reg32 |= 2 << 10; /* Thermal Sensor 3 Target Width */ RCBA32(0x2238) = reg32; RCBA32_OR(0x232c, 1 << 0); RCBA32_OR(0x1100, 3 << 13); /* Assume trunk clock gating is to be enabled */ RCBA32(0x2304) = 0xc07b8400; /* DMI misc control */ RCBA32_OR(0x2314, 1 << 23 | 1 << 5); if (pcie_dev) pci_update_config8(pcie_dev, 0xf5, ~0xf, 0x5); RCBA32_OR(0x2320, 1 << 1); RCBA32(0x3314) = 0x000007bf; /* NOTE: Preserve bit 5 */ RCBA32_OR(0x3318, 0x0dcf0000); RCBA32(0x3324) = 0x04000000; RCBA32(0x3340) = 0x020ddbff; RCBA32_OR(0x3344, 1 << 0); RCBA32(0x3368) = 0x00041000; RCBA32(0x3378) = 0x3f8ddbff; RCBA32(0x337c) = 0x000001e1; RCBA32(0x3388) = 0x00001000; RCBA32(0x33a0) = 0x00000800; RCBA32(0x33ac) = 0x00001000; RCBA32(0x33b0) = 0x00001000; RCBA32(0x33c0) = 0x00011900; RCBA32(0x33d0) = 0x06000802; RCBA32(0x3a28) = 0x01010000; RCBA32(0x3a2c) = 0x01010404; RCBA32_OR(0x33a4, 1 << 0); /* DMI power optimizer */ RCBA32_OR(0x33d4, 1 << 27); RCBA32_OR(0x33c8, 1 << 27); RCBA32(0x2b14) = 0x1e0a0317; RCBA32(0x2b24) = 0x4000000b; RCBA32(0x2b28) = 0x00000002; RCBA32(0x2b2c) = 0x00008813; RCBA32(0x3a80) = 0x01040000; reg32 = 0x01041001; /* Port 1 and 0 disabled */ if (config && (config->sata_port_map & ((1 << 1) | (1 << 0))) == 0) reg32 |= (1 << 20) | (1 << 18); /* Port 3 and 2 disabled */ if (config && (config->sata_port_map & ((1 << 3) | (1 << 2))) == 0) reg32 |= (1 << 24) | (1 << 26); RCBA32(0x3a84) = reg32; RCBA32(0x3a88) = 0x00000001; RCBA32(0x33d4) = 0xc80bc000; configure_dmi_pm(dev); } /* LynxPoint LP PCH Power Management init */ static void lpt_lp_pm_init(struct device *dev) { struct southbridge_intel_lynxpoint_config *config = dev->chip_info; u32 data; printk(BIOS_DEBUG, "LynxPoint LP PM init\n"); pci_write_config8(dev, 0xa9, 0x46); RCBA32_AND_OR(0x232c, ~1, 0); RCBA32_AND_OR(0x1100, ~0xc000, 0xc000); RCBA32_OR(0x1100, 0x00000100); RCBA32_OR(0x1100, 0x0000003f); RCBA32_AND_OR(0x2320, ~0x60, 0x10); RCBA32(0x3314) = 0x00012fff; RCBA32(0x3318) = 0x0dcf0400; RCBA32(0x3324) = 0x04000000; RCBA32(0x3368) = 0x00041400; RCBA32(0x3388) = 0x3f8ddbff; RCBA32(0x33ac) = 0x00007001; RCBA32(0x33b0) = 0x00181900; RCBA32(0x33c0) = 0x00060A00; RCBA32(0x33d0) = 0x06200840; RCBA32(0x3a28) = 0x01010101; RCBA32(0x3a2c) = 0x04040404; RCBA32(0x2b1c) = 0x03808033; RCBA32(0x2b34) = 0x80000009; RCBA32(0x3348) = 0x022ddfff; RCBA32(0x334c) = 0x00000001; RCBA32(0x3358) = 0x0001c000; RCBA32(0x3380) = 0x3f8ddbff; RCBA32(0x3384) = 0x0001c7e1; RCBA32(0x338c) = 0x0001c7e1; RCBA32(0x3398) = 0x0001c000; RCBA32(0x33a8) = 0x00181900; RCBA32(0x33dc) = 0x00080000; RCBA32(0x33e0) = 0x00000001; RCBA32(0x3a20) = 0x00000404; RCBA32(0x3a24) = 0x01010101; RCBA32(0x3a30) = 0x01010101; RCBA32_OR(0x0410, 0x00000003); RCBA32_OR(0x2618, 0x08000000); RCBA32_OR(0x2300, 0x00000002); RCBA32_OR(0x2600, 0x00000008); RCBA32(0x33b4) = 0x00007001; RCBA32(0x3350) = 0x022ddfff; RCBA32(0x3354) = 0x00000001; /* Power Optimizer */ RCBA32_OR(0x33d4, 0x08000000); RCBA32_OR(0x33c8, 0x00000080); RCBA32(0x2b10) = 0x0000883c; RCBA32(0x2b14) = 0x1e0a4616; RCBA32(0x2b24) = 0x40000005; RCBA32(0x2b20) = 0x0005db01; RCBA32(0x3a80) = 0x05145005; pci_or_config32(dev, 0xac, 1 << 21); pch_iobp_update(0xED00015C, ~(1 << 11), 0x00003700); pch_iobp_update(0xED000118, ~0, 0x00c00000); pch_iobp_update(0xED000120, ~0, 0x00240000); pch_iobp_update(0xCA000000, ~0, 0x00000009); /* Set RCBA CIR28 0x3A84 based on SATA port enables */ data = 0x00001005; /* Port 3 and 2 disabled */ if (config && (config->sata_port_map & ((1 << 3) | (1 << 2))) == 0) data |= (1 << 24) | (1 << 26); /* Port 1 and 0 disabled */ if (config && (config->sata_port_map & ((1 << 1) | (1 << 0))) == 0) data |= (1 << 20) | (1 << 18); RCBA32(0x3a84) = data; /* Set RCBA 0x2b1c[29]=1 if DSP disabled */ if (RCBA32(FD) & PCH_DISABLE_ADSPD) RCBA32_OR(0x2b1c, (1 << 29)); /* Set RCBA 0x33D4 after other setup */ RCBA32_OR(0x33d4, 0x2fff2fb1); /* Set RCBA 0x33C8[15]=1 as last step */ RCBA32_OR(0x33c8, (1 << 15)); } static void enable_clock_gating(struct device *dev) { /* LynxPoint Mobile */ u32 reg32; u16 reg16; /* DMI */ RCBA32_AND_OR(0x2234, ~0, 0xf); reg16 = pci_read_config16(dev, GEN_PMCON_1); reg16 |= (1 << 11) | (1 << 12) | (1 << 14); reg16 |= (1 << 2); // PCI CLKRUN# Enable pci_write_config16(dev, GEN_PMCON_1, reg16); RCBA32_OR(0x900, (1 << 14)); reg32 = RCBA32(CG); reg32 |= (1 << 22); // HDA Dynamic reg32 |= (1 << 31); // LPC Dynamic reg32 |= (1 << 16); // PCIe Dynamic reg32 |= (1 << 27); // HPET Dynamic reg32 |= (1 << 28); // GPIO Dynamic RCBA32(CG) = reg32; RCBA32_OR(0x38c0, 0x7); // SPI Dynamic } static void enable_lp_clock_gating(struct device *dev) { /* LynxPoint LP */ u32 reg32; u16 reg16; /* DMI */ RCBA32_AND_OR(0x2234, ~0, 0xf); reg16 = pci_read_config16(dev, GEN_PMCON_1); reg16 &= ~((1 << 11) | (1 << 14)); reg16 |= (1 << 5) | (1 << 6) | (1 << 7) | (1 << 12) | (1 << 13); reg16 |= (1 << 2); // PCI CLKRUN# Enable pci_write_config16(dev, GEN_PMCON_1, reg16); pci_or_config32(dev, 0x64, 1 << 6); /* * RCBA + 0x2614[27:25,14:13,10,8] = 101,11,1,1 * RCBA + 0x2614[23:16] = 0x20 * RCBA + 0x2614[30:28] = 0x0 * RCBA + 0x2614[26] = 1 (IF 0:2.0@0x08 >= 0x0b) */ RCBA32_AND_OR(0x2614, ~0x74000000, 0x0a206500); /* Check for LPT-LP B2 stepping and 0:31.0@0xFA > 4 */ struct device *const gma = pcidev_on_root(2, 0); if (gma && pci_read_config8(gma, 0x8) >= 0x0b) RCBA32_OR(0x2614, (1 << 26)); RCBA32_OR(0x900, 0x0000031f); reg32 = RCBA32(CG); if (RCBA32(0x3454) & (1 << 4)) reg32 &= ~(1 << 29); // LPC Dynamic else reg32 |= (1 << 29); // LPC Dynamic reg32 |= (1 << 31); // LP LPC reg32 |= (1 << 30); // LP BLA reg32 |= (1 << 28); // GPIO Dynamic reg32 |= (1 << 27); // HPET Dynamic reg32 |= (1 << 26); // Generic Platform Event Clock if (RCBA32(BUC) & PCH_DISABLE_GBE) reg32 |= (1 << 23); // GbE Static reg32 |= (1 << 22); // HDA Dynamic reg32 |= (1 << 16); // PCI Dynamic RCBA32(CG) = reg32; RCBA32_OR(0x3434, 0x7); // LP LPC RCBA32_OR(0x38c0, 0x3c07); // SPI Dynamic pch_iobp_update(0xCF000000, ~0, 0x00007001); pch_iobp_update(0xCE00C000, ~1, 0x00000000); // bit0=0 in BWG 1.4.0 } static void pch_set_acpi_mode(void) { if (!acpi_is_wakeup_s3()) apm_control(APM_CNT_ACPI_DISABLE); } static void lpc_init(struct device *dev) { printk(BIOS_DEBUG, "pch: %s\n", __func__); /* IO APIC initialization. */ pch_enable_ioapic(dev); pch_enable_serial_irqs(dev); /* Setup the PIRQ. */ pch_pirq_init(dev); /* Setup power options. */ pch_power_options(dev); /* Initialize power management */ if (pch_is_lp()) { lpt_lp_pm_init(dev); enable_lp_clock_gating(dev); } else { lpt_pm_init(dev); enable_clock_gating(dev); } /* Initialize the real time clock. */ sb_rtc_init(); /* Initialize ISA DMA. */ isa_dma_init(); /* Initialize the High Precision Event Timers, if present. */ enable_hpet(dev); setup_i8259(); /* Interrupt 9 should be level triggered (SCI) */ i8259_configure_irq_trigger(9, 1); pch_set_acpi_mode(); /* Indicate DRAM init done for MRC S3 to know it can resume */ pci_or_config8(dev, GEN_PMCON_2, 1 << 7); } static void pch_lpc_add_mmio_resources(struct device *dev) { u32 reg; struct resource *res; const u32 default_decode_base = IO_APIC_ADDR; /* * Just report all resources from IO-APIC base to 4GiB. Don't mark * them reserved as that may upset the OS if this range is marked * as reserved in the e820. */ res = new_resource(dev, OIC); res->base = default_decode_base; res->size = 0 - default_decode_base; res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; /* RCBA */ if (CONFIG_FIXED_RCBA_MMIO_BASE < default_decode_base) { res = new_resource(dev, RCBA); res->base = (resource_t)CONFIG_FIXED_RCBA_MMIO_BASE; res->size = CONFIG_RCBA_LENGTH; res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED | IORESOURCE_RESERVE; } /* Check LPC Memory Decode register. */ reg = pci_read_config32(dev, LGMR); if (reg & 1) { reg &= ~0xffff; if (reg < default_decode_base) { res = new_resource(dev, LGMR); res->base = reg; res->size = 16 * 1024; res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED | IORESOURCE_RESERVE; } } } /* Default IO range claimed by the LPC device. The upper bound is exclusive. */ #define LPC_DEFAULT_IO_RANGE_LOWER 0 #define LPC_DEFAULT_IO_RANGE_UPPER 0x1000 static inline int pch_io_range_in_default(int base, int size) { /* Does it start above the range? */ if (base >= LPC_DEFAULT_IO_RANGE_UPPER) return 0; /* Is it entirely contained? */ if (base >= LPC_DEFAULT_IO_RANGE_LOWER && (base + size) < LPC_DEFAULT_IO_RANGE_UPPER) return 1; /* This will return not in range for partial overlaps. */ return 0; } /* * Note: this function assumes there is no overlap with the default LPC device's * claimed range: LPC_DEFAULT_IO_RANGE_LOWER -> LPC_DEFAULT_IO_RANGE_UPPER. */ static void pch_lpc_add_io_resource(struct device *dev, u16 base, u16 size, int index) { struct resource *res; if (pch_io_range_in_default(base, size)) return; res = new_resource(dev, index); res->base = base; res->size = size; res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; } static void pch_lpc_add_gen_io_resources(struct device *dev, int reg_value, int index) { /* * Check if the register is enabled. If so and the base exceeds the * device's default, claim range and add the resource. */ if (reg_value & 1) { u16 base = reg_value & 0xfffc; u16 size = (0x3 | ((reg_value >> 16) & 0xfc)) + 1; pch_lpc_add_io_resource(dev, base, size, index); } } static void pch_lpc_add_io_resources(struct device *dev) { struct resource *res; /* Add the default claimed IO range for the LPC device. */ res = new_resource(dev, 0); res->base = LPC_DEFAULT_IO_RANGE_LOWER; res->size = LPC_DEFAULT_IO_RANGE_UPPER - LPC_DEFAULT_IO_RANGE_LOWER; res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; /* GPIOBASE */ pch_lpc_add_io_resource(dev, get_gpiobase(), DEFAULT_GPIOSIZE, GPIO_BASE); /* PMBASE */ pch_lpc_add_io_resource(dev, get_pmbase(), 256, PMBASE); /* LPC Generic IO Decode range. */ if (dev->chip_info) { config_t *config = dev->chip_info; pch_lpc_add_gen_io_resources(dev, config->gen1_dec, LPC_GEN1_DEC); pch_lpc_add_gen_io_resources(dev, config->gen2_dec, LPC_GEN2_DEC); pch_lpc_add_gen_io_resources(dev, config->gen3_dec, LPC_GEN3_DEC); pch_lpc_add_gen_io_resources(dev, config->gen4_dec, LPC_GEN4_DEC); } } static void pch_lpc_read_resources(struct device *dev) { /* Get the normal PCI resources of this device. */ pci_dev_read_resources(dev); /* Add non-standard MMIO resources. */ pch_lpc_add_mmio_resources(dev); /* Add IO resources. */ pch_lpc_add_io_resources(dev); } static void pch_lpc_enable(struct device *dev) { /* Enable PCH Display Port */ RCBA16(DISPBDF) = 0x0010; RCBA32_OR(FD2, PCH_ENABLE_DBDF); pch_enable(dev); } static const char *lpc_acpi_name(const struct device *dev) { return "LPCB"; } static void southbridge_fill_ssdt(const struct device *dev) { intel_acpi_gen_def_acpi_pirq(dev); } static unsigned long southbridge_write_acpi_tables(const struct device *device, unsigned long start, struct acpi_rsdp *rsdp) { unsigned long current; current = start; /* Align ACPI tables to 16byte */ current = acpi_align_current(current); /* * We explicitly add these tables later on: */ current = acpi_write_hpet(device, current, rsdp); current = acpi_align_current(current); if (pch_is_lp()) { printk(BIOS_DEBUG, "ACPI: * SSDT2\n"); acpi_header_t *ssdt = (acpi_header_t *)current; acpi_create_serialio_ssdt(ssdt); current += ssdt->length; acpi_add_table(rsdp, ssdt); current = acpi_align_current(current); } printk(BIOS_DEBUG, "current = %lx\n", current); return current; } static void lpc_final(struct device *dev) { spi_finalize_ops(); /* Lock */ RCBA32_OR(0x3a6c, 0x00000001); if (acpi_is_wakeup_s3() || CONFIG(INTEL_CHIPSET_LOCKDOWN)) apm_control(APM_CNT_FINALIZE); } static struct device_operations device_ops = { .read_resources = pch_lpc_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .acpi_fill_ssdt = southbridge_fill_ssdt, .acpi_name = lpc_acpi_name, .write_acpi_tables = southbridge_write_acpi_tables, .init = lpc_init, .final = lpc_final, .enable = pch_lpc_enable, .scan_bus = scan_static_bus, .ops_pci = &pci_dev_ops_pci, }; /* IDs for LPC device of Intel 8 Series Chipset (Lynx Point) */ static const unsigned short pci_device_ids[] = { PCI_DEVICE_ID_INTEL_LPT_MOBILE_SAMPLE, PCI_DEVICE_ID_INTEL_LPT_DESKTOP_SAMPLE, PCI_DEVICE_ID_INTEL_LPT_Z87, PCI_DEVICE_ID_INTEL_LPT_Z85, PCI_DEVICE_ID_INTEL_LPT_HM86, PCI_DEVICE_ID_INTEL_LPT_H87, PCI_DEVICE_ID_INTEL_LPT_HM87, PCI_DEVICE_ID_INTEL_LPT_Q85, PCI_DEVICE_ID_INTEL_LPT_Q87, PCI_DEVICE_ID_INTEL_LPT_QM87, PCI_DEVICE_ID_INTEL_LPT_B85, PCI_DEVICE_ID_INTEL_LPT_C222, PCI_DEVICE_ID_INTEL_LPT_C224, PCI_DEVICE_ID_INTEL_LPT_C226, PCI_DEVICE_ID_INTEL_LPT_H81, PCI_DEVICE_ID_INTEL_LPT_LP_SAMPLE, PCI_DEVICE_ID_INTEL_LPT_LP_PREMIUM, PCI_DEVICE_ID_INTEL_LPT_LP_MAINSTREAM, PCI_DEVICE_ID_INTEL_LPT_LP_VALUE, 0 }; static const struct pci_driver pch_lpc __pci_driver = { .ops = &device_ops, .vendor = PCI_VENDOR_ID_INTEL, .devices = pci_device_ids, };