Many PCH devices are hard-coded to a particular PCI address. Set these up early in case they are needed.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: None
arch/x86/cpu/ivybridge/Makefile | 1 + arch/x86/cpu/ivybridge/cpu.c | 141 +++++++++++++++++++++ arch/x86/cpu/ivybridge/early_init.c | 145 ++++++++++++++++++++++ arch/x86/include/asm/arch-ivybridge/pch.h | 121 +++++++++++++++++- arch/x86/include/asm/arch-ivybridge/sandybridge.h | 107 ++++++++++++++++ arch/x86/include/asm/global_data.h | 8 ++ arch/x86/include/asm/post.h | 2 + 7 files changed, 524 insertions(+), 1 deletion(-) create mode 100644 arch/x86/cpu/ivybridge/early_init.c create mode 100644 arch/x86/include/asm/arch-ivybridge/sandybridge.h
diff --git a/arch/x86/cpu/ivybridge/Makefile b/arch/x86/cpu/ivybridge/Makefile index 74f01e8..e5c0751 100644 --- a/arch/x86/cpu/ivybridge/Makefile +++ b/arch/x86/cpu/ivybridge/Makefile @@ -6,6 +6,7 @@
obj-y += car.o obj-y += cpu.o +obj-y += early_init.o obj-y += lpc.o obj-y += microcode_intel.o obj-y += pci.o diff --git a/arch/x86/cpu/ivybridge/cpu.c b/arch/x86/cpu/ivybridge/cpu.c index 0aca2f0..d5be2f5 100644 --- a/arch/x86/cpu/ivybridge/cpu.c +++ b/arch/x86/cpu/ivybridge/cpu.c @@ -4,6 +4,7 @@ * Graeme Russ, graeme.russ@gmail.com. * * Some portions from coreboot src/mainboard/google/link/romstage.c + * and src/cpu/intel/model_206ax/bootblock.c * Copyright (C) 2007-2010 coresystems GmbH * Copyright (C) 2011 Google Inc. * @@ -23,6 +24,7 @@ #include <asm/arch/model_206ax.h> #include <asm/arch/microcode.h> #include <asm/arch/pch.h> +#include <asm/arch/sandybridge.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -180,6 +182,83 @@ int arch_cpu_init(void) return 0; }
+static int enable_smbus(void) +{ + pci_dev_t dev; + uint16_t value; + + /* Set the SMBus device statically. */ + dev = PCI_BDF(0x0, 0x1f, 0x3); + + /* Check to make sure we've got the right device. */ + value = pci_read_config16(dev, 0x0); + if (value != 0x8086) { + printf("SMBus controller not found\n"); + return -ENOSYS; + } + + /* Set SMBus I/O base. */ + pci_write_config32(dev, SMB_BASE, + SMBUS_IO_BASE | PCI_BASE_ADDRESS_SPACE_IO); + + /* Set SMBus enable. */ + pci_write_config8(dev, HOSTC, HST_EN); + + /* Set SMBus I/O space enable. */ + pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_IO); + + /* Disable interrupt generation. */ + outb(0, SMBUS_IO_BASE + SMBHSTCTL); + + /* Clear any lingering errors, so transactions can run. */ + outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT); + debug("SMBus controller enabled\n"); + + return 0; +} + +#define PCH_EHCI0_TEMP_BAR0 0xe8000000 +#define PCH_EHCI1_TEMP_BAR0 0xe8000400 +#define PCH_XHCI_TEMP_BAR0 0xe8001000 + +/* + * Setup USB controller MMIO BAR to prevent the reference code from + * resetting the controller. + * + * The BAR will be re-assigned during device enumeration so these are only + * temporary. + * + * This is used to speed up the resume path. + */ +static void enable_usb_bar(void) +{ + pci_dev_t usb0 = PCH_EHCI1_DEV; + pci_dev_t usb1 = PCH_EHCI2_DEV; + pci_dev_t usb3 = PCH_XHCI_DEV; + u32 cmd; + + /* USB Controller 1 */ + pci_write_config32(usb0, PCI_BASE_ADDRESS_0, + PCH_EHCI0_TEMP_BAR0); + cmd = pci_read_config32(usb0, PCI_COMMAND); + cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_write_config32(usb0, PCI_COMMAND, cmd); + + /* USB Controller 1 */ + pci_write_config32(usb1, PCI_BASE_ADDRESS_0, + PCH_EHCI1_TEMP_BAR0); + cmd = pci_read_config32(usb1, PCI_COMMAND); + cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_write_config32(usb1, PCI_COMMAND, cmd); + + /* USB3 Controller */ + pci_write_config32(usb3, PCI_BASE_ADDRESS_0, + PCH_XHCI_TEMP_BAR0); + cmd = pci_read_config32(usb3, PCI_COMMAND); + cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_write_config32(usb3, PCI_COMMAND, cmd); +} + static int report_bist_failure(void) { if (gd->arch.bist != 0) { @@ -192,8 +271,11 @@ static int report_bist_failure(void)
int print_cpuinfo(void) { + enum pei_boot_mode_t boot_mode = PEI_BOOT_NONE; char processor_name[CPU_MAX_NAME_LEN]; const char *name; + uint32_t pm1_cnt; + uint16_t pm1_sts; int ret;
/* Halt if there was a built in self test failure */ @@ -205,9 +287,68 @@ int print_cpuinfo(void) if (ret && ret != -ENOENT && ret != -EEXIST) return ret;
+ /* Enable upper 128bytes of CMOS */ + writel(1 << 2, RCB_REG(RC)); + + /* TODO: cmos_post_init() */ + if (readl(MCHBAR_REG(SSKPD)) == 0xCAFE) { + debug("soft reset detected\n"); + boot_mode = PEI_BOOT_SOFT_RESET; + + /* System is not happy after keyboard reset... */ + debug("Issuing CF9 warm reset\n"); + outb(0x6, 0xcf9); + cpu_hlt(); + } + + /* Early chipset init required before RAM init can work */ + sandybridge_early_init(SANDYBRIDGE_MOBILE); + + /* Check PM1_STS[15] to see if we are waking from Sx */ + pm1_sts = inw(DEFAULT_PMBASE + PM1_STS); + + /* Read PM1_CNT[12:10] to determine which Sx state */ + pm1_cnt = inl(DEFAULT_PMBASE + PM1_CNT); + + if ((pm1_sts & WAK_STS) && ((pm1_cnt >> 10) & 7) == 5) { +#if CONFIG_HAVE_ACPI_RESUME + debug("Resume from S3 detected.\n"); + boot_mode = PEI_BOOT_RESUME; + /* Clear SLP_TYPE. This will break stage2 but + * we care for that when we get there. + */ + outl(pm1_cnt & ~(7 << 10), DEFAULT_PMBASE + PM1_CNT); +#else + debug("Resume from S3 detected, but disabled.\n"); +#endif + } else { + /* + * TODO: An indication of life might be possible here (e.g. + * keyboard light) + */ + } + post_code(POST_EARLY_INIT); + + /* Enable SPD ROMs and DDR-III DRAM */ + ret = enable_smbus(); + if (ret) + return ret; + + /* Prepare USB controller early in S3 resume */ + if (boot_mode == PEI_BOOT_RESUME) + enable_usb_bar(); + + gd->arch.pei_boot_mode = boot_mode; + + /* TODO: Move this to the board or driver */ + pci_write_config32(PCH_LPC_DEV, GPIO_BASE, DEFAULT_GPIOBASE | 1); + pci_write_config32(PCH_LPC_DEV, GPIO_CNTL, 0x10); + /* Print processor name */ name = cpu_get_name(processor_name); printf("CPU: %s\n", name);
+ post_code(POST_CPU_INFO); + return 0; } diff --git a/arch/x86/cpu/ivybridge/early_init.c b/arch/x86/cpu/ivybridge/early_init.c new file mode 100644 index 0000000..eb8f613 --- /dev/null +++ b/arch/x86/cpu/ivybridge/early_init.c @@ -0,0 +1,145 @@ +/* + * From Coreboot + * + * Copyright (C) 2007-2010 coresystems GmbH + * Copyright (C) 2011 Google Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/pci.h> +#include <asm/arch/pch.h> +#include <asm/arch/sandybridge.h> + +static void sandybridge_setup_bars(pci_dev_t pch_dev, pci_dev_t lpc_dev) +{ + /* Setting up Southbridge. In the northbridge code. */ + debug("Setting up static southbridge registers\n"); + pci_write_config32(lpc_dev, PCH_RCBA_BASE, DEFAULT_RCBA | 1); + + pci_write_config32(lpc_dev, PMBASE, DEFAULT_PMBASE | 1); + pci_write_config8(lpc_dev, ACPI_CNTL, 0x80); /* Enable ACPI BAR */ + + debug("Disabling watchdog reboot\n"); + setbits_le32(RCB_REG(GCS), 1 >> 5); /* No reset */ + outw(1 << 11, DEFAULT_PMBASE | 0x60 | 0x08); /* halt timer */ + + /* Set up all hardcoded northbridge BARs */ + debug("Setting up static registers\n"); + pci_write_config32(pch_dev, EPBAR, DEFAULT_EPBAR | 1); + pci_write_config32(pch_dev, EPBAR + 4, (0LL + DEFAULT_EPBAR) >> 32); + pci_write_config32(pch_dev, MCHBAR, DEFAULT_MCHBAR | 1); + pci_write_config32(pch_dev, MCHBAR + 4, (0LL + DEFAULT_MCHBAR) >> 32); + /* 64MB - busses 0-63 */ + pci_write_config32(pch_dev, PCIEXBAR, DEFAULT_PCIEXBAR | 5); + pci_write_config32(pch_dev, PCIEXBAR + 4, + (0LL + DEFAULT_PCIEXBAR) >> 32); + pci_write_config32(pch_dev, DMIBAR, DEFAULT_DMIBAR | 1); + pci_write_config32(pch_dev, DMIBAR + 4, (0LL + DEFAULT_DMIBAR) >> 32); + + /* Set C0000-FFFFF to access RAM on both reads and writes */ + pci_write_config8(pch_dev, PAM0, 0x30); + pci_write_config8(pch_dev, PAM1, 0x33); + pci_write_config8(pch_dev, PAM2, 0x33); + pci_write_config8(pch_dev, PAM3, 0x33); + pci_write_config8(pch_dev, PAM4, 0x33); + pci_write_config8(pch_dev, PAM5, 0x33); + pci_write_config8(pch_dev, PAM6, 0x33); +} + +static void sandybridge_setup_graphics(pci_dev_t pch_dev, pci_dev_t video_dev) +{ + u32 reg32; + u16 reg16; + u8 reg8; + + reg16 = pci_read_config16(video_dev, PCI_DEVICE_ID); + switch (reg16) { + case 0x0102: /* GT1 Desktop */ + case 0x0106: /* GT1 Mobile */ + case 0x010a: /* GT1 Server */ + case 0x0112: /* GT2 Desktop */ + case 0x0116: /* GT2 Mobile */ + case 0x0122: /* GT2 Desktop >=1.3GHz */ + case 0x0126: /* GT2 Mobile >=1.3GHz */ + case 0x0156: /* IvyBridge */ + case 0x0166: /* IvyBridge */ + break; + default: + debug("Graphics not supported by this CPU/chipset\n"); + return; + } + + debug("Initialising Graphics\n"); + + /* Setup IGD memory by setting GGC[7:3] = 1 for 32MB */ + reg16 = pci_read_config16(pch_dev, GGC); + reg16 &= ~0x00f8; + reg16 |= 1 << 3; + /* Program GTT memory by setting GGC[9:8] = 2MB */ + reg16 &= ~0x0300; + reg16 |= 2 << 8; + /* Enable VGA decode */ + reg16 &= ~0x0002; + pci_write_config16(pch_dev, GGC, reg16); + + /* Enable 256MB aperture */ + reg8 = pci_read_config8(video_dev, MSAC); + reg8 &= ~0x06; + reg8 |= 0x02; + pci_write_config8(video_dev, MSAC, reg8); + + /* Erratum workarounds */ + reg32 = readl(MCHBAR_REG(0x5f00)); + reg32 |= (1 << 9) | (1 << 10); + writel(reg32, MCHBAR_REG(0x5f00)); + + /* Enable SA Clock Gating */ + reg32 = readl(MCHBAR_REG(0x5f00)); + writel(reg32 | 1, MCHBAR_REG(0x5f00)); + + /* GPU RC6 workaround for sighting 366252 */ + reg32 = readl(MCHBAR_REG(0x5d14)); + reg32 |= (1 << 31); + writel(reg32, MCHBAR_REG(0x5d14)); + + /* VLW */ + reg32 = readl(MCHBAR_REG(0x6120)); + reg32 &= ~(1 << 0); + writel(reg32, MCHBAR_REG(0x6120)); + + reg32 = readl(MCHBAR_REG(0x5418)); + reg32 |= (1 << 4) | (1 << 5); + writel(reg32, MCHBAR_REG(0x5418)); +} + +void sandybridge_early_init(int chipset_type) +{ + pci_dev_t pch_dev = PCH_DEV; + pci_dev_t video_dev = PCH_VIDEO_DEV; + pci_dev_t lpc_dev = PCH_LPC_DEV; + u32 capid0_a; + u8 reg8; + + /* Device ID Override Enable should be done very early */ + capid0_a = pci_read_config32(pch_dev, 0xe4); + if (capid0_a & (1 << 10)) { + reg8 = pci_read_config8(pch_dev, 0xf3); + reg8 &= ~7; /* Clear 2:0 */ + + if (chipset_type == SANDYBRIDGE_MOBILE) + reg8 |= 1; /* Set bit 0 */ + + pci_write_config8(pch_dev, 0xf3, reg8); + } + + /* Setup all BARs required for early PCIe and raminit */ + sandybridge_setup_bars(pch_dev, lpc_dev); + + /* Device Enable */ + pci_write_config32(pch_dev, DEVEN, DEVEN_HOST | DEVEN_IGD); + + sandybridge_setup_graphics(pch_dev, video_dev); +} diff --git a/arch/x86/include/asm/arch-ivybridge/pch.h b/arch/x86/include/asm/arch-ivybridge/pch.h index c572f76..290a737 100644 --- a/arch/x86/include/asm/arch-ivybridge/pch.h +++ b/arch/x86/include/asm/arch-ivybridge/pch.h @@ -14,9 +14,30 @@
#include <pci.h>
+#define DEFAULT_GPIOBASE 0x0480 +#define DEFAULT_PMBASE 0x0500 + +#define SMBUS_IO_BASE 0x0400 + +#define PCH_EHCI1_DEV PCI_BDF(0, 0x1d, 0) +#define PCH_EHCI2_DEV PCI_BDF(0, 0x1a, 0) +#define PCH_XHCI_DEV PCI_BDF(0, 0x14, 0) +#define PCH_ME_DEV PCI_BDF(0, 0x16, 0) +#define PCH_PCIE_DEV_SLOT 28 + +#define PCH_DEV PCI_BDF(0, 0, 0) +#define PCH_VIDEO_DEV PCI_BDF(0, 2, 0) + /* PCI Configuration Space (D31:F0): LPC */ #define PCH_LPC_DEV PCI_BDF(0, 0x1f, 0)
+#define PMBASE 0x40 +#define ACPI_CNTL 0x44 +#define BIOS_CNTL 0xDC +#define GPIO_BASE 0x48 /* LPC GPIO Base Address Register */ +#define GPIO_CNTL 0x4C /* LPC GPIO Control Register */ +#define GPIO_ROUT 0xb8 + #define LPC_IO_DEC 0x80 /* IO Decode Ranges Register */ #define LPC_EN 0x82 /* LPC IF Enables Register */ #define CNF2_LPC_EN (1 << 13) /* 0x4e/0x4f */ @@ -35,9 +56,35 @@ #define LPC_GEN4_DEC 0x90 /* LPC IF Generic Decode Range 4 */ #define LPC_GENX_DEC(x) (0x84 + 4 * (x))
-#define DEFAULT_RCBA 0xfed1c000 +/* PCI Configuration Space (D31:F3): SMBus */ +#define PCH_SMBUS_DEV PCI_BDF(0, 0x1f, 3) +#define SMB_BASE 0x20 +#define HOSTC 0x40 +#define SMB_RCV_SLVA 0x09 + +/* HOSTC bits */ +#define I2C_EN (1 << 2) +#define SMB_SMI_EN (1 << 1) +#define HST_EN (1 << 0) + +/* SMBus I/O bits. */ +#define SMBHSTSTAT 0x0 +#define SMBHSTCTL 0x2 +#define SMBHSTCMD 0x3 +#define SMBXMITADD 0x4 +#define SMBHSTDAT0 0x5 +#define SMBHSTDAT1 0x6 +#define SMBBLKDAT 0x7 +#define SMBTRNSADD 0x9 +#define SMBSLVDATA 0xa +#define SMLINK_PIN_CTL 0xe +#define SMBUS_PIN_CTL 0xf + +#define SMBUS_TIMEOUT (10 * 1000 * 100) +
/* Root Complex Register Block */ +#define DEFAULT_RCBA 0xfed1c000 #define RCB_REG(reg) (DEFAULT_RCBA + (reg))
#define PCH_RCBA_BASE 0xf0 @@ -95,6 +142,78 @@ #define FD2 0x3428 /* 32bit */ #define CG 0x341c /* 32bit */
+/* ICH7 PMBASE */ +#define PM1_STS 0x00 +#define WAK_STS (1 << 15) +#define PCIEXPWAK_STS (1 << 14) +#define PRBTNOR_STS (1 << 11) +#define RTC_STS (1 << 10) +#define PWRBTN_STS (1 << 8) +#define GBL_STS (1 << 5) +#define BM_STS (1 << 4) +#define TMROF_STS (1 << 0) +#define PM1_EN 0x02 +#define PCIEXPWAK_DIS (1 << 14) +#define RTC_EN (1 << 10) +#define PWRBTN_EN (1 << 8) +#define GBL_EN (1 << 5) +#define TMROF_EN (1 << 0) +#define PM1_CNT 0x04 +#define SLP_EN (1 << 13) +#define SLP_TYP (7 << 10) +#define SLP_TYP_S0 0 +#define SLP_TYP_S1 1 +#define SLP_TYP_S3 5 +#define SLP_TYP_S4 6 +#define SLP_TYP_S5 7 +#define GBL_RLS (1 << 2) +#define BM_RLD (1 << 1) +#define SCI_EN (1 << 0) +#define PM1_TMR 0x08 +#define PROC_CNT 0x10 +#define LV2 0x14 +#define LV3 0x15 +#define LV4 0x16 +#define PM2_CNT 0x50 /* mobile only */ +#define GPE0_STS 0x20 +#define PME_B0_STS (1 << 13) +#define PME_STS (1 << 11) +#define BATLOW_STS (1 << 10) +#define PCI_EXP_STS (1 << 9) +#define RI_STS (1 << 8) +#define SMB_WAK_STS (1 << 7) +#define TCOSCI_STS (1 << 6) +#define SWGPE_STS (1 << 2) +#define HOT_PLUG_STS (1 << 1) +#define GPE0_EN 0x28 +#define PME_B0_EN (1 << 13) +#define PME_EN (1 << 11) +#define TCOSCI_EN (1 << 6) +#define SMI_EN 0x30 +#define INTEL_USB2_EN (1 << 18) /* Intel-Specific USB2 SMI logic */ +#define LEGACY_USB2_EN (1 << 17) /* Legacy USB2 SMI logic */ +#define PERIODIC_EN (1 << 14) /* SMI on PERIODIC_STS in SMI_STS */ +#define TCO_EN (1 << 13) /* Enable TCO Logic (BIOSWE et al) */ +#define MCSMI_EN (1 << 11) /* Trap microcontroller range access */ +#define BIOS_RLS (1 << 7) /* asserts SCI on bit set */ +#define SWSMI_TMR_EN (1 << 6) /* start software smi timer on bit set */ +#define APMC_EN (1 << 5) /* Writes to APM_CNT cause SMI# */ +#define SLP_SMI_EN (1 << 4) /* Write SLP_EN in PM1_CNT asserts SMI# */ +#define LEGACY_USB_EN (1 << 3) /* Legacy USB circuit SMI logic */ +#define BIOS_EN (1 << 2) /* Assert SMI# on setting GBL_RLS bit */ +#define EOS (1 << 1) /* End of SMI (deassert SMI#) */ +#define GBL_SMI_EN (1 << 0) /* SMI# generation at all? */ +#define SMI_STS 0x34 +#define ALT_GP_SMI_EN 0x38 +#define ALT_GP_SMI_STS 0x3a +#define GPE_CNTL 0x42 +#define DEVACT_STS 0x44 +#define SS_CNT 0x50 +#define C3_RES 0x54 +#define TCO1_STS 0x64 +#define DMISCI_STS (1 << 9) +#define TCO2_STS 0x66 + /** * lpc_early_init() - set up LPC serial ports and other early things * diff --git a/arch/x86/include/asm/arch-ivybridge/sandybridge.h b/arch/x86/include/asm/arch-ivybridge/sandybridge.h new file mode 100644 index 0000000..a1072f2 --- /dev/null +++ b/arch/x86/include/asm/arch-ivybridge/sandybridge.h @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2014 Google, Inc + * + * From Coreboot file of the same name + * + * Copyright (C) 2007-2008 coresystems GmbH + * Copyright (C) 2011 Google Inc. + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _ACH_ASM_SANDYBRIDGE_H +#define _ACH_ASM_SANDYBRIDGE_H + +/* Chipset types */ +#define SANDYBRIDGE_MOBILE 0 +#define SANDYBRIDGE_DESKTOP 1 +#define SANDYBRIDGE_SERVER 2 + +/* Device ID for SandyBridge and IvyBridge */ +#define BASE_REV_SNB 0x00 +#define BASE_REV_IVB 0x50 +#define BASE_REV_MASK 0x50 + +/* SandyBridge CPU stepping */ +#define SNB_STEP_D0 (BASE_REV_SNB + 5) /* Also J0 */ +#define SNB_STEP_D1 (BASE_REV_SNB + 6) +#define SNB_STEP_D2 (BASE_REV_SNB + 7) /* Also J1/Q0 */ + +/* IvyBridge CPU stepping */ +#define IVB_STEP_A0 (BASE_REV_IVB + 0) +#define IVB_STEP_B0 (BASE_REV_IVB + 2) +#define IVB_STEP_C0 (BASE_REV_IVB + 4) +#define IVB_STEP_K0 (BASE_REV_IVB + 5) +#define IVB_STEP_D0 (BASE_REV_IVB + 6) + +/* Intel Enhanced Debug region must be 4MB */ +#define IED_SIZE 0x400000 + +/* Northbridge BARs */ +#define DEFAULT_MCHBAR 0xfed10000 /* 16 KB */ +#define DEFAULT_DMIBAR 0xfed18000 /* 4 KB */ +#define DEFAULT_EPBAR 0xfed19000 /* 4 KB */ +#define DEFAULT_RCBABASE 0xfed1c000 +/* 4 KB per PCIe device */ +#define DEFAULT_PCIEXBAR CONFIG_MMCONF_BASE_ADDRESS + +/* Device 0:0.0 PCI configuration space (Host Bridge) */ +#define EPBAR 0x40 +#define MCHBAR 0x48 +#define PCIEXBAR 0x60 +#define DMIBAR 0x68 +#define X60BAR 0x60 + +#define GGC 0x50 /* GMCH Graphics Control */ + +#define DEVEN 0x54 /* Device Enable */ +#define DEVEN_PEG60 (1 << 13) +#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 PAM0 0x80 +#define PAM1 0x81 +#define PAM2 0x82 +#define PAM3 0x83 +#define PAM4 0x84 +#define PAM5 0x85 +#define PAM6 0x86 + +#define LAC 0x87 /* Legacy Access Control */ +#define SMRAM 0x88 /* System Management RAM Control */ +#define D_OPEN (1 << 6) +#define D_CLS (1 << 5) +#define D_LCK (1 << 4) +#define G_SMRAME (1 << 3) +#define C_BASE_SEG ((0 << 2) | (1 << 1) | (0 << 0)) + +#define TOM 0xa0 +#define TOUUD 0xa8 /* Top of Upper Usable DRAM */ +#define TSEG 0xb8 /* TSEG base */ +#define TOLUD 0xbc /* Top of Low Used Memory */ + +#define SKPAD 0xdc /* Scratchpad Data */ + +/* Device 0:1.0 PCI configuration space (PCI Express) */ +#define BCTRL1 0x3e /* 16bit */ + +/* Device 0:2.0 PCI configuration space (Graphics Device) */ + +#define MSAC 0x62 /* Multi Size Aperture Control */ +#define SWSCI 0xe8 /* SWSCI enable */ +#define ASLS 0xfc /* OpRegion Base */ + +/* + * MCHBAR + */ +#define MCHBAR_REG(reg) (DEFAULT_RCBA + (reg)) + +#define SSKPD 0x5d14 /* 16bit (scratchpad) */ +#define BIOS_RESET_CPL 0x5da8 /* 8bit */ + +void sandybridge_early_init(int chipset_type); + +#endif diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index d32987b..ff9574c 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -10,6 +10,13 @@
#ifndef __ASSEMBLY__
+enum pei_boot_mode_t { + PEI_BOOT_NONE = 0, + PEI_BOOT_SOFT_RESET, + PEI_BOOT_RESUME, + +}; + /* Architecture-specific global data */ struct arch_global_data { struct global_data *gd_addr; /* Location of Global Data */ @@ -25,6 +32,7 @@ struct arch_global_data { void *new_fdt; /* Relocated FDT */ uint32_t bist; /* Built-in self test value */ struct pci_controller *hose; /* PCI hose for early use */ + enum pei_boot_mode_t pei_boot_mode; };
#endif diff --git a/arch/x86/include/asm/post.h b/arch/x86/include/asm/post.h index b203dc9..61dcda1 100644 --- a/arch/x86/include/asm/post.h +++ b/arch/x86/include/asm/post.h @@ -25,6 +25,8 @@ #define POST_START_STACK 0x29 #define POST_START_DONE 0x2a #define POST_CPU_INIT 0x2b +#define POST_EARLY_INIT 0x2c +#define POST_CPU_INFO 0x2d
/* Output a post code using al - value must be 0 to 0xff */ #ifdef __ASSEMBLY__