| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <device/pci_def.h> |
| #include <option.h> |
| #include <pc80/isa-dma.h> |
| #include <pc80/i8259.h> |
| #include <arch/io.h> |
| #include <arch/ioapic.h> |
| #include <acpi/acpi.h> |
| #include <acpi/acpi_gnvs.h> |
| #include <acpi/acpigen.h> |
| #include <cpu/x86/smm.h> |
| #include <string.h> |
| #include "chip.h" |
| #include "pch.h" |
| #include "nvs.h" |
| #include <northbridge/intel/sandybridge/sandybridge.h> |
| #include <southbridge/intel/common/pciehp.h> |
| #include <southbridge/intel/common/acpi_pirq_gen.h> |
| #include <southbridge/intel/common/pmutil.h> |
| #include <southbridge/intel/common/rtc.h> |
| #include <southbridge/intel/common/spi.h> |
| |
| #define NMI_OFF 0 |
| |
| typedef struct southbridge_intel_bd82x6x_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); |
| io_apic_write(VIO_APIC_VADDR, 0x01, reg32); |
| |
| /* |
| * Select Boot Configuration register (0x03) and |
| * use Processor System Bus (0x01) to deliver interrupts. |
| */ |
| io_apic_write(VIO_APIC_VADDR, 0x03, 0x01); |
| } |
| |
| 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 |
| } |
| |
| /* 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; |
| /* Interrupt 11 is not used by legacy devices and so can always be used for |
| PCI interrupts. Full legacy IRQ routing is complicated and hard to |
| get right. Fortunately all modern OS use MSI and so it's not that big of |
| an issue anyway. Still we have to provide a reasonable default. Using |
| interrupt 11 for it everywhere is a working default. ACPI-aware OS can |
| move it to any interrupt and others will just leave them at default. |
| */ |
| const u8 pirq_routing = 11; |
| |
| pci_write_config8(dev, PIRQA_ROUT, pirq_routing); |
| pci_write_config8(dev, PIRQB_ROUT, pirq_routing); |
| pci_write_config8(dev, PIRQC_ROUT, pirq_routing); |
| pci_write_config8(dev, PIRQD_ROUT, pirq_routing); |
| |
| pci_write_config8(dev, PIRQE_ROUT, pirq_routing); |
| pci_write_config8(dev, PIRQF_ROUT, pirq_routing); |
| pci_write_config8(dev, PIRQG_ROUT, pirq_routing); |
| pci_write_config8(dev, PIRQH_ROUT, pirq_routing); |
| |
| for (irq_dev = all_devices; irq_dev; irq_dev = irq_dev->next) { |
| u8 int_pin=0; |
| |
| if (!irq_dev->enabled || irq_dev->path.type != DEVICE_PATH_PCI) |
| continue; |
| |
| int_pin = pci_read_config8(irq_dev, PCI_INTERRUPT_PIN); |
| |
| if (int_pin == 0) |
| continue; |
| |
| pci_write_config8(irq_dev, PCI_INTERRUPT_LINE, pirq_routing); |
| } |
| } |
| |
| static void pch_gpi_routing(struct device *dev) |
| { |
| /* Get the chip configuration */ |
| config_t *config = dev->chip_info; |
| 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, pmbase; |
| u32 reg32; |
| const char *state; |
| /* Get the chip configuration */ |
| config_t *config = dev->chip_info; |
| |
| int pwr_on = CONFIG_MAINBOARD_POWER_FAILURE_STATE; |
| int nmi_option; |
| |
| /* 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. |
| */ |
| get_option(&pwr_on, "power_on_after_fail"); |
| |
| 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); |
| nmi_option = NMI_OFF; |
| get_option(&nmi_option, "nmi"); |
| 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 |
| if (CONFIG(DEBUG_PERIODIC_SMI)) |
| reg16 |= (3 << 0); // Periodic SMI every 8s |
| pci_write_config16(dev, GEN_PMCON_1, reg16); |
| |
| // Set the board's GPI routing. |
| pch_gpi_routing(dev); |
| |
| pmbase = pci_read_config16(dev, 0x40) & 0xfffe; |
| |
| outl(config->gpe0_en, pmbase + GPE0_EN); |
| outw(config->alt_gp_smi_en, pmbase + 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(PRSTS); |
| reg32 |= (1 << 4)|(1 << 5)|(1 << 0); |
| RCBA32(PRSTS) = reg32; |
| |
| reg32 = RCBA32(0x3f02); |
| reg32 &= ~0xf; |
| RCBA32(0x3f02) = reg32; |
| } |
| |
| /* CougarPoint PCH Power Management init */ |
| static void cpt_pm_init(struct device *dev) |
| { |
| printk(BIOS_DEBUG, "CougarPoint PM init\n"); |
| pci_write_config8(dev, 0xa9, 0x47); |
| RCBA32_AND_OR(CIR30, ~0UL, (1 << 6)|(1 << 0)); |
| RCBA32_AND_OR(CIR5, ~0UL, (1 << 0)); |
| RCBA16_AND_OR(CIR3, ~0UL, (1 << 13)|(1 << 14)); |
| RCBA16_AND_OR(CIR2, ~0UL, (1 << 14)); |
| RCBA32(DMC) = 0xc0388400; |
| RCBA32_AND_OR(CIR6, ~0UL, (1 << 5)|(1 << 18)); |
| RCBA32_AND_OR(CIR9, ~0UL, (1 << 15)|(1 << 1)); |
| RCBA32_AND_OR(CIR7, ~0x1f, 0xf); |
| RCBA32(PM_CFG) = 0x050f0000; |
| RCBA32(CIR8) = 0x04000000; |
| RCBA32_AND_OR(CIR10, ~0UL, 0xfffff); |
| RCBA32_AND_OR(CIR11, ~0UL, (1 << 1)); |
| RCBA32(CIR12) = 0x0001c000; |
| RCBA32(CIR14) = 0x00061100; |
| RCBA32(CIR15) = 0x7f8fdfff; |
| RCBA32(CIR13) = 0x000003fc; |
| RCBA32(CIR16) = 0x00001000; |
| RCBA32(CIR18) = 0x0001c000; |
| RCBA32(CIR17) = 0x00000800; |
| RCBA32(CIR23) = 0x00001000; |
| RCBA32(CIR19) = 0x00093900; |
| RCBA32(CIR20) = 0x24653002; |
| RCBA32(CIR21) = 0x062108fe; |
| RCBA32_AND_OR(CIR22, 0xf000f000, 0x00670060); |
| RCBA32(CIR24) = 0x01010000; |
| RCBA32(CIR25) = 0x01010404; |
| RCBA32(CIR27) = 0x01041041; |
| RCBA32_AND_OR(CIR28, ~0x0000ffff, 0x00001001); |
| RCBA32_AND_OR(CIR28, ~0UL, (1 << 24)); /* SATA 2/3 disabled */ |
| RCBA32_AND_OR(CIR29, ~0UL, (1 << 0)); /* SATA 4/5 disabled */ |
| RCBA32(CIR26) = 0x00000001; |
| RCBA32_AND_OR(0x2344, 0x00ffff00, 0xff00000c); |
| RCBA32_AND_OR(0x80c, ~(0xff << 20), 0x11 << 20); |
| RCBA32(PMSYNC_CFG) = 0; |
| RCBA32_AND_OR(0x21b0, ~0UL, 0xf); |
| } |
| |
| /* PantherPoint PCH Power Management init */ |
| static void ppt_pm_init(struct device *dev) |
| { |
| printk(BIOS_DEBUG, "PantherPoint PM init\n"); |
| pci_write_config8(dev, 0xa9, 0x47); |
| RCBA32_AND_OR(CIR30, ~0UL, (1 << 0)); |
| RCBA32_AND_OR(CIR5, ~0UL, (1 << 0)); |
| RCBA16_AND_OR(CIR3, ~0UL, (1 << 13)|(1 << 14)); |
| RCBA16_AND_OR(CIR2, ~0UL, (1 << 14)); |
| RCBA32(DMC) = 0xc03b8400; |
| RCBA32_AND_OR(CIR6, ~0UL, (1 << 5)|(1 << 18)); |
| RCBA32_AND_OR(CIR9, ~0UL, (1 << 15)|(1 << 1)); |
| RCBA32_AND_OR(CIR7, ~0x1f, 0xf); |
| RCBA32(PM_CFG) = 0x054f0000; |
| RCBA32(CIR8) = 0x04000000; |
| RCBA32_AND_OR(CIR10, ~0UL, 0xfffff); |
| RCBA32_AND_OR(CIR11, ~0UL, (1 << 1)|(1 << 0)); |
| RCBA32(CIR12) = 0x0001c000; |
| RCBA32(CIR14) = 0x00061100; |
| RCBA32(CIR15) = 0x7f8fdfff; |
| RCBA32(CIR13) = 0x000003fd; |
| RCBA32(CIR16) = 0x00001000; |
| RCBA32(CIR18) = 0x0001c000; |
| RCBA32(CIR17) = 0x00000800; |
| RCBA32(CIR23) = 0x00001000; |
| RCBA32(CIR19) = 0x00093900; |
| RCBA32(CIR20) = 0x24653002; |
| RCBA32(CIR21) = 0x067388fe; |
| RCBA32_AND_OR(CIR22, 0xf000f000, 0x00670060); |
| RCBA32(CIR24) = 0x01010000; |
| RCBA32(CIR25) = 0x01010404; |
| RCBA32(CIR27) = 0x01040000; |
| RCBA32_AND_OR(CIR28, ~0x0000ffff, 0x00001001); |
| RCBA32_AND_OR(CIR28, ~0UL, (1 << 24)); /* SATA 2/3 disabled */ |
| RCBA32_AND_OR(CIR29, ~0UL, (1 << 0)); /* SATA 4/5 disabled */ |
| RCBA32(CIR26) = 0x00000001; |
| RCBA32_AND_OR(0x2344, 0x00ffff00, 0xff00000c); |
| RCBA32_AND_OR(0x80c, ~(0xff << 20), 0x11 << 20); |
| RCBA32_AND_OR(0x33a4, ~0UL, (1 << 0)); |
| RCBA32(PMSYNC_CFG) = 0; |
| RCBA32_AND_OR(0x21b0, ~0UL, 0xf); |
| } |
| |
| 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; |
| } |
| |
| static void enable_clock_gating(struct device *dev) |
| { |
| u32 reg32; |
| u16 reg16; |
| |
| RCBA32_AND_OR(DMIC, ~0UL, 0xf); |
| |
| reg16 = pci_read_config16(dev, GEN_PMCON_1); |
| reg16 &= ~(3 << 2); /* Clear CLKRUN bits for mobile and desktop */ |
| if (get_platform_type() == PLATFORM_MOBILE) |
| reg16 |= (1 << 2); /* CLKRUN_EN for mobile */ |
| else if (get_platform_type() == PLATFORM_DESKTOP_SERVER) |
| reg16 |= (1 << 3); /* PSEUDO_CLKRUN_EN for desktop */ |
| reg16 |= (1 << 11); |
| pci_write_config16(dev, GEN_PMCON_1, reg16); |
| |
| pch_iobp_update(0xEB007F07, ~0UL, (1 << 31)); |
| pch_iobp_update(0xEB004000, ~0UL, (1 << 7)); |
| pch_iobp_update(0xEC007F07, ~0UL, (1 << 31)); |
| pch_iobp_update(0xEC004000, ~0UL, (1 << 7)); |
| |
| reg32 = RCBA32(CG); |
| reg32 |= (1 << 31); |
| reg32 |= (1 << 29) | (1 << 28); |
| reg32 |= (1 << 27) | (1 << 26) | (1 << 25) | (1 << 24); |
| reg32 |= (1 << 16); |
| reg32 |= (1 << 17); |
| reg32 |= (1 << 18); |
| reg32 |= (1 << 22); |
| reg32 |= (1 << 23); |
| reg32 &= ~(1 << 20); |
| reg32 |= (1 << 19); |
| reg32 |= (1 << 0); |
| reg32 |= (0xf << 1); |
| RCBA32(CG) = reg32; |
| |
| RCBA32_OR(0x38c0, 0x7); |
| RCBA32_OR(0x36d4, 0x6680c004); |
| RCBA32_OR(0x3564, 0x3); |
| } |
| |
| static void pch_set_acpi_mode(void) |
| { |
| if (!acpi_is_wakeup_s3()) { |
| apm_control(APM_CNT_ACPI_DISABLE); |
| } |
| } |
| |
| static void pch_disable_smm_only_flashing(struct device *dev) |
| { |
| printk(BIOS_SPEW, "Enabling BIOS updates outside of SMM... "); |
| |
| pci_and_config8(dev, BIOS_CNTL, ~(1 << 5)); |
| } |
| |
| static void pch_fixups(struct device *dev) |
| { |
| /* Indicate DRAM init done for MRC S3 to know it can resume */ |
| pci_or_config8(dev, GEN_PMCON_2, 1 << 7); |
| |
| /* |
| * Enable DMI ASPM in the PCH |
| */ |
| RCBA32_AND_OR(DMC, ~(1 << 10), 0); |
| RCBA32_OR(LCAP, (1 << 11)|(1 << 10)); |
| RCBA32_OR(LCTL, 0x3); |
| } |
| |
| static void pch_spi_init(const struct device *const dev) |
| { |
| const config_t *const config = dev->chip_info; |
| |
| printk(BIOS_DEBUG, "%s\n", __func__); |
| |
| if (config->spi_uvscc) |
| RCBA32(0x3800 + 0xc8) = config->spi_uvscc; |
| if (config->spi_lvscc) |
| RCBA32(0x3800 + 0xc4) = config->spi_lvscc; |
| |
| if (config->spi_uvscc || config->spi_lvscc) |
| RCBA32_OR(0x3800 + 0xc4, 1 << 23); /* lock both UVSCC + LVSCC */ |
| } |
| |
| static const struct { |
| u16 dev_id; |
| const char *dev_name; |
| } pch_table[] = { |
| /* 6-series PCI ids from |
| * Intel® 6 Series Chipset and |
| * Intel® C200 Series Chipset |
| * Specification Update - NDA |
| * October 2013 |
| * CDI / IBP#: 440377 |
| */ |
| {0x1C41, "SFF Sample"}, |
| {0x1C42, "Desktop Sample"}, |
| {0x1C43, "Mobile Sample"}, |
| {0x1C44, "Z68"}, |
| {0x1C46, "P67"}, |
| {0x1C47, "UM67"}, |
| {0x1C49, "HM65"}, |
| {0x1C4A, "H67"}, |
| {0x1C4B, "HM67"}, |
| {0x1C4C, "Q65"}, |
| {0x1C4D, "QS67"}, |
| {0x1C4E, "Q67"}, |
| {0x1C4F, "QM67"}, |
| {0x1C50, "B65"}, |
| {0x1C52, "C202"}, |
| {0x1C54, "C204"}, |
| {0x1C56, "C206"}, |
| {0x1C5C, "H61"}, |
| /* 7-series PCI ids from Intel document 472178 */ |
| {0x1E41, "Desktop Sample"}, |
| {0x1E42, "Mobile Sample"}, |
| {0x1E43, "SFF Sample"}, |
| {0x1E44, "Z77"}, |
| {0x1E45, "H71"}, |
| {0x1E46, "Z75"}, |
| {0x1E47, "Q77"}, |
| {0x1E48, "Q75"}, |
| {0x1E49, "B75"}, |
| {0x1E4A, "H77"}, |
| {0x1E53, "C216"}, |
| {0x1E55, "QM77"}, |
| {0x1E56, "QS77"}, |
| {0x1E58, "UM77"}, |
| {0x1E57, "HM77"}, |
| {0x1E59, "HM76"}, |
| {0x1E5D, "HM75"}, |
| {0x1E5E, "HM70"}, |
| {0x1E5F, "NM70"}, |
| }; |
| |
| static void report_pch_info(struct device *dev) |
| { |
| const u16 dev_id = pci_read_config16(dev, PCI_DEVICE_ID); |
| int i; |
| |
| const char *pch_type = "Unknown"; |
| for (i = 0; i < ARRAY_SIZE(pch_table); i++) { |
| if (pch_table[i].dev_id == dev_id) { |
| pch_type = pch_table[i].dev_name; |
| break; |
| } |
| } |
| printk(BIOS_INFO, "PCH: detected %s, device id: 0x%x, rev id 0x%x\n", |
| pch_type, dev_id, pci_read_config8(dev, PCI_CLASS_REVISION)); |
| } |
| |
| static void lpc_init(struct device *dev) |
| { |
| printk(BIOS_DEBUG, "pch: %s\n", __func__); |
| |
| /* Print detected platform */ |
| report_pch_info(dev); |
| |
| /* 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 */ |
| switch (pch_silicon_type()) { |
| case PCH_TYPE_CPT: /* CougarPoint */ |
| cpt_pm_init(dev); |
| break; |
| case PCH_TYPE_PPT: /* PantherPoint */ |
| ppt_pm_init(dev); |
| break; |
| default: |
| printk(BIOS_ERR, "Unknown Chipset: 0x%04x\n", dev->device); |
| } |
| |
| /* Set the state of the GPIO lines. */ |
| //gpio_init(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); |
| |
| /* Initialize Clock Gating */ |
| enable_clock_gating(dev); |
| |
| setup_i8259(); |
| |
| /* The OS should do this? */ |
| /* Interrupt 9 should be level triggered (SCI) */ |
| i8259_configure_irq_trigger(9, 1); |
| |
| pch_disable_smm_only_flashing(dev); |
| |
| pch_set_acpi_mode(); |
| |
| pch_fixups(dev); |
| |
| pch_spi_init(dev); |
| } |
| |
| static void pch_lpc_read_resources(struct device *dev) |
| { |
| struct resource *res; |
| config_t *config = dev->chip_info; |
| u8 io_index = 0; |
| |
| /* Get the normal PCI resources of this device. */ |
| pci_dev_read_resources(dev); |
| |
| /* Add an extra subtractive resource for both memory and I/O. */ |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); |
| res->base = 0; |
| res->size = 0x1000; |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); |
| res->base = 0xff000000; |
| /* Some systems (e.g. X230) have 12 MiB flash. |
| SPI controller supports up to 2 x 16 MiB of flash but |
| address map limits this to 16MiB. */ |
| res->size = 0x01000000; /* 16 MB for flash */ |
| res->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| res = new_resource(dev, 3); /* IOAPIC */ |
| res->base = IO_APIC_ADDR; |
| res->size = 0x00001000; |
| res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| |
| /* Set PCH IO decode ranges if required.*/ |
| if ((config->gen1_dec & 0xFFFC) > 0x1000) { |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); |
| res->base = config->gen1_dec & 0xFFFC; |
| res->size = (config->gen1_dec >> 16) & 0xFC; |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| if ((config->gen2_dec & 0xFFFC) > 0x1000) { |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); |
| res->base = config->gen2_dec & 0xFFFC; |
| res->size = (config->gen2_dec >> 16) & 0xFC; |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| if ((config->gen3_dec & 0xFFFC) > 0x1000) { |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); |
| res->base = config->gen3_dec & 0xFFFC; |
| res->size = (config->gen3_dec >> 16) & 0xFC; |
| res->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| if ((config->gen4_dec & 0xFFFC) > 0x1000) { |
| res = new_resource(dev, IOINDEX_SUBTRACTIVE(io_index++, 0)); |
| res->base = config->gen4_dec & 0xFFFC; |
| res->size = (config->gen4_dec >> 16) & 0xFC; |
| res->flags = IORESOURCE_IO| IORESOURCE_SUBTRACTIVE | |
| IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| } |
| |
| static void pch_lpc_enable(struct device *dev) |
| { |
| /* Enable PCH Display Port */ |
| RCBA16(DISPBDF) = 0x0010; |
| RCBA32_OR(FD2, PCH_ENABLE_DBDF); |
| |
| pch_enable(dev); |
| } |
| |
| size_t gnvs_size_of_array(void) |
| { |
| return sizeof(struct global_nvs); |
| } |
| |
| void *gnvs_chromeos_ptr(struct global_nvs *gnvs) |
| { |
| return &gnvs->chromeos; |
| } |
| |
| void soc_fill_gnvs(struct global_nvs *gnvs) |
| { |
| gnvs->apic = 1; |
| gnvs->mpen = 1; /* Enable Multi Processing */ |
| gnvs->pcnt = dev_count_cpu(); |
| } |
| |
| void southbridge_inject_dsdt(const struct device *dev) |
| { |
| acpi_inject_nvsa(); |
| } |
| |
| static const char *lpc_acpi_name(const struct device *dev) |
| { |
| return "LPCB"; |
| } |
| |
| static void southbridge_fill_ssdt(const struct device *device) |
| { |
| struct device *dev = pcidev_on_root(0x1f, 0); |
| config_t *chip = dev->chip_info; |
| |
| intel_acpi_pcie_hotplug_generator(chip->pcie_hotplug_map, 8); |
| intel_acpi_gen_def_acpi_pirq(dev); |
| } |
| |
| static void lpc_final(struct device *dev) |
| { |
| spi_finalize_ops(); |
| |
| /* Call SMM finalize() handlers before resume */ |
| if (CONFIG(INTEL_CHIPSET_LOCKDOWN) || |
| acpi_is_wakeup_s3()) { |
| apm_control(APM_CNT_FINALIZE); |
| } |
| } |
| |
| void intel_southbridge_override_spi( |
| struct intel_swseq_spi_config *spi_config) |
| { |
| struct device *dev = pcidev_on_root(0x1f, 0); |
| |
| if (!dev) |
| return; |
| /* Devicetree may override defaults. */ |
| const config_t *const config = dev->chip_info; |
| |
| if (!config) |
| return; |
| |
| if (config->spi.ops[0].op != 0) |
| memcpy(spi_config, &config->spi, sizeof(*spi_config)); |
| } |
| |
| static struct device_operations device_ops = { |
| .read_resources = pch_lpc_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .write_acpi_tables = acpi_write_hpet, |
| .acpi_inject_dsdt = southbridge_inject_dsdt, |
| .acpi_fill_ssdt = southbridge_fill_ssdt, |
| .acpi_name = lpc_acpi_name, |
| .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 6 Series Chipset, Intel 7 Series Chipset, and |
| * Intel C200 Series Chipset |
| */ |
| |
| static const unsigned short pci_device_ids[] = { |
| 0x1c40, 0x1c41, 0x1c42, 0x1c43, 0x1c44, 0x1c45, 0x1c46, 0x1c47, 0x1c48, |
| 0x1c49, 0x1c4a, 0x1c4b, 0x1c4c, 0x1c4d, 0x1c4e, 0x1c4f, 0x1c50, 0x1c51, |
| 0x1c52, 0x1c53, 0x1c54, 0x1c55, 0x1c56, 0x1c57, 0x1c58, 0x1c59, 0x1c5a, |
| 0x1c5b, 0x1c5c, 0x1c5d, 0x1c5e, 0x1c5f, |
| |
| 0x1e41, 0x1e42, 0x1e43, 0x1e44, 0x1e45, 0x1e46, 0x1e47, 0x1e48, 0x1e49, |
| 0x1e4a, 0x1e4b, 0x1e4c, 0x1e4d, 0x1e4e, 0x1e4f, 0x1e50, 0x1e51, 0x1e52, |
| 0x1e53, 0x1e54, 0x1e55, 0x1e56, 0x1e57, 0x1e58, 0x1e59, 0x1e5a, 0x1e5b, |
| 0x1e5c, 0x1e5d, 0x1e5e, 0x1e5f, |
| |
| 0 }; |
| |
| static const struct pci_driver pch_lpc __pci_driver = { |
| .ops = &device_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |