| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2010 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. |
| */ |
| |
| #ifndef _SB800_EARLY_SETUP_C_ |
| #define _SB800_EARLY_SETUP_C_ |
| |
| #include <reset.h> |
| #include <arch/acpi.h> |
| #include <arch/cpu.h> |
| #include <cbmem.h> |
| #include "sb800.h" |
| #include "smbus.c" |
| |
| #define SMBUS_IO_BASE 0x6000 /* 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); |
| } |
| |
| static void sb800_acpi_init(void) |
| { |
| pmio_write(0x60, ACPI_PM_EVT_BLK & 0xFF); |
| pmio_write(0x61, ACPI_PM_EVT_BLK >> 8); |
| pmio_write(0x62, ACPI_PM1_CNT_BLK & 0xFF); |
| pmio_write(0x63, ACPI_PM1_CNT_BLK >> 8); |
| pmio_write(0x64, ACPI_PM_TMR_BLK & 0xFF); |
| pmio_write(0x65, ACPI_PM_TMR_BLK >> 8); |
| pmio_write(0x68, ACPI_GPE0_BLK & 0xFF); |
| pmio_write(0x69, ACPI_GPE0_BLK >> 8); |
| |
| /* CpuControl is in \_PR.CP00, 6 bytes */ |
| pmio_write(0x66, ACPI_CPU_CONTROL & 0xFF); |
| pmio_write(0x67, ACPI_CPU_CONTROL >> 8); |
| |
| pmio_write(0x6A, 0xB0); /* AcpiSmiCmdLo */ |
| pmio_write(0x6B, 0); /* AcpiSmiCmdHi */ |
| |
| pmio_write(0x6E, 0xB8); /* AcpiPmaCntBlkLo */ |
| pmio_write(0x6F, 0); /* AcpiPmaCntBlkHi */ |
| |
| pmio_write(0x6C, ACPI_PMA_CNT_BLK & 0xFF); |
| pmio_write(0x6D, ACPI_PMA_CNT_BLK >> 8); |
| |
| pmio_write(0x74, 1<<0 | 1<<1 | 1<<4 | 1<<2); /* AcpiDecodeEnable, When set, SB uses |
| * the contents of the PM registers at |
| * index 60-6B to decode ACPI I/O address. |
| * AcpiSmiEn & SmiCmdEn*/ |
| /* RTC_En_En, TMR_En_En, GBL_EN_EN */ |
| outl(0x1, ACPI_PM1_CNT_BLK); /* set SCI_EN */ |
| } |
| |
| /* RPR 2.28 Get SB ASIC Revision.*/ |
| static u8 get_sb800_revision(void) |
| { |
| device_t dev; |
| u8 rev_id; |
| u8 rev = 0; |
| |
| /* if (rev != 0) return rev; */ |
| |
| dev = PCI_DEV(0, 0x14, 0);//pci_locate_device(PCI_ID(0x1002, 0x4385), 0); |
| |
| if (dev == PCI_DEV_INVALID) { |
| die("SMBUS controller not found\n"); |
| /* NOT REACHED */ |
| } |
| rev_id = pci_read_config8(dev, 0x08); |
| |
| if (rev_id == 0x40) { |
| rev = REV_SB800_A11; |
| } else if (rev_id == 0x41) { |
| rev = REV_SB800_A12; |
| } else { |
| die("It is not SB800 or SB810\r\n"); |
| } |
| |
| return rev; |
| } |
| |
| void sb800_clk_output_48Mhz(void) |
| { |
| /* AcpiMMioDecodeEn */ |
| u8 reg8; |
| reg8 = pmio_read(0x24); |
| reg8 |= 1; |
| reg8 &= ~(1 << 1); |
| pmio_write(0x24, reg8); |
| |
| *(volatile u32 *)(0xFED80000+0xE00+0x40) &= ~((1 << 0) | (1 << 2)); /* 48Mhz */ |
| *(volatile u32 *)(0xFED80000+0xE00+0x40) |= 1 << 1; /* 48Mhz */ |
| } |
| /*************************************** |
| * Legacy devices are mapped to LPC space. |
| * Serial port 0 |
| * KBC Port |
| * ACPI Micro-controller port |
| * LPC ROM size |
| * This function does not change port 0x80 decoding. |
| * Console output through any port besides 0x3f8 is unsupported. |
| * If you use FWH ROMs, you have to setup IDSEL. |
| ***************************************/ |
| static void sb800_lpc_init(void) |
| { |
| u8 reg8; |
| device_t dev; |
| |
| //dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); /* SMBUS controller */ |
| dev = PCI_DEV(0, 0x14, 0); |
| /* 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. */ |
| reg8 = pmio_read(0x44+3); |
| reg8 |= 1 << 7; |
| pmio_write(0x44+3, reg8); |
| |
| /* Enable lpc controller */ |
| reg8 = pmio_read(0xEC); |
| reg8 |= 1 << 0; |
| pmio_write(0xEC, reg8); |
| |
| dev = PCI_DEV(0, 0x14, 3);//pci_locate_device(PCI_ID(0x1002, 0x439d), 0); /* LPC Controller */ |
| /* Decode port 0x3f8-0x3ff (Serial 0) */ |
| //#warning Serial port decode on LPC is hardcoded to 0x3f8 |
| reg8 = pci_read_config8(dev, 0x44); |
| reg8 |= 1 << 6; |
| 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); |
| |
| /* SuperIO, LPC ROM */ |
| reg8 = pci_read_config8(dev, 0x48); |
| /* Decode ports 0x2e-0x2f, 0x4e-0x4f (SuperI/O configuration) */ |
| reg8 |= (1 << 1) | (1 << 0); |
| /* Decode variable LPC ROM address ranges 1&2 (see register 0x68-0x6b, 0x6c-0x6f) */ |
| reg8 |= (1 << 3) | (1 << 4); |
| /* Decode port 0x70-0x73 (RTC) */ |
| reg8 |= 1 << 6; |
| pci_write_config8(dev, 0x48, reg8); |
| } |
| |
| /* what is its usage? */ |
| static u32 get_sbdn(u32 bus) |
| { |
| device_t dev; |
| |
| /* Find the device. */ |
| dev = PCI_DEV(bus, 0x14, 0);//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; |
| } |
| |
| /* |
| * RPR 2.6 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(0x80); |
| if (dual_core()) |
| byte |= 1 << 2 | 1 << 1; |
| byte |= 1 << 3; |
| byte |= 1 << 4; |
| byte &= ~(1 << 7); |
| pmio_write(0x80, byte); |
| |
| byte = pmio_read(0x7E); |
| byte |= 1 << 6; |
| byte &= ~(1 << 2); |
| pmio_write(0x7E, byte); |
| |
| pmio_write(0x94, 0x01); |
| |
| byte = pmio_read(0x89); |
| byte |= 1 << 4; |
| pmio_write(0x89, byte); |
| |
| byte = pmio_read(0x9b); |
| byte &= ~(7 << 4); |
| byte |= 1 << 4; |
| pmio_write(0x9b, byte); |
| |
| pmio_write(0x99, 0x10); |
| |
| pmio_write(0x9A, 0x00); |
| pmio_write(0x96, 0x10); |
| pmio_write(0x97, 0x00); |
| |
| byte = pmio_read(0x81); |
| byte &= ~(1 << 1); |
| pmio_write(0x81, byte); |
| } |
| |
| void hard_reset(void) |
| { |
| set_bios_reset(); |
| |
| /* full reset */ |
| outb(0x0a, 0x0cf9); |
| outb(0x0e, 0x0cf9); |
| } |
| |
| void soft_reset(void) |
| { |
| set_bios_reset(); |
| /* link reset */ |
| outb(0x06, 0x0cf9); |
| } |
| |
| void sb800_pci_port80(void) |
| { |
| u8 byte; |
| device_t dev; |
| |
| /* P2P Bridge */ |
| dev = PCI_DEV(0, 0x14, 4);//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_DEV(0, 0x14, 3);//pci_locate_device(PCI_ID(0x1002, 0x439D), 0); |
| |
| byte = pci_read_config8(dev, 0x4A); |
| byte &= ~(1 << 5); /* disable lpc port 80 */ |
| pci_write_config8(dev, 0x4A, byte); |
| } |
| |
| #define BIT0 (1 << 0) |
| #define BIT1 (1 << 1) |
| #define BIT2 (1 << 2) |
| #define BIT3 (1 << 3) |
| #define BIT4 (1 << 4) |
| #define BIT5 (1 << 5) |
| #define BIT6 (1 << 6) |
| #define BIT7 (1 << 7) |
| |
| struct pm_entry { |
| u8 port; |
| u8 mask; |
| u8 bit; |
| }; |
| struct pm_entry const pm_table[] = |
| { |
| {0x5D, 0x00, BIT0}, |
| {0xD2, 0xCF, BIT4 + BIT5}, |
| {0x12, 0x00, BIT0}, |
| {0x28, 0xFF, BIT0}, |
| {0x44 + 3, 0x7F, BIT7}, |
| {0x48, 0xFF, BIT0}, |
| {0x00, 0xFF, 0x0E}, |
| {0x00 + 2, 0xFF, 0x40}, |
| {0x00 + 3, 0xFF, 0x08}, |
| {0x34, 0xEF, BIT0 + BIT1}, |
| {0xEC, 0xFD, BIT1}, |
| {0x5B, 0xF9, BIT1 + BIT2}, |
| {0x08, 0xFE, BIT2 + BIT4}, |
| {0x08 + 1, 0xFF, BIT0}, |
| {0x54, 0x00, BIT4 + BIT7}, |
| {0x04 + 3, 0xFD, BIT1}, |
| {0x74, 0xF6, BIT0 + BIT3}, |
| {0xF0, ~BIT2, 0x00}, |
| {0xF8, 0x00, 0x6C}, |
| {0xF8 + 1, 0x00, 0x27}, |
| {0xF8 + 2, 0x00, 0x00}, |
| {0xC4, 0xFE, 0x14}, |
| {0xC0 + 2, 0xBF, 0x40}, |
| {0xBE, 0xDD, BIT5}, |
| // HPET workaround |
| {0x54 + 3, 0xFC, BIT0 + BIT1}, |
| {0x54 + 2, 0x7F, BIT7}, |
| {0x54 + 2, 0x7F, 0x00}, |
| {0xC4, ~(BIT2 + BIT4), BIT2 + BIT4}, |
| {0xC0, 0, 0xF9}, |
| {0xC0 + 1, 0x04, 0x03}, |
| {0xC2, 0x20, 0x58}, |
| {0xC2 + 1, 0, 0x40}, |
| {0xC2, ~(BIT4), BIT4}, |
| {0x74, 0x00, BIT0 + BIT1 + BIT2 + BIT4}, |
| {0xDE + 1, ~(BIT0 + BIT1), BIT0 + BIT1}, |
| {0xDE, ~BIT4, BIT4}, |
| {0xBA, ~BIT3, BIT3}, |
| {0xBA + 1, ~BIT6, BIT6}, |
| {0xBC, ~BIT1, BIT1}, |
| {0xED, ~(BIT0 + BIT1), 0}, |
| {0xDC, 0x7C, BIT0}, |
| // {0xFF, 0xFF, 0xFF}, |
| }; |
| |
| void sb800_lpc_port80(void) |
| { |
| u8 byte; |
| device_t dev; |
| |
| /* Enable LPC controller */ |
| byte = pmio_read(0xEC); |
| byte |= 1 << 0; |
| pmio_write(0xEC, byte); |
| |
| /* Enable port 80 LPC decode in pci function 3 configuration space. */ |
| dev = PCI_DEV(0, 0x14, 3);//pci_locate_device(PCI_ID(0x1002, 0x439D), 0); |
| byte = pci_read_config8(dev, 0x4a); |
| byte |= 1 << 5; /* enable port 80 */ |
| pci_write_config8(dev, 0x4a, byte); |
| } |
| |
| /* sbDevicesPorInitTable */ |
| static void sb800_devices_por_init(void) |
| { |
| device_t dev; |
| u8 byte; |
| |
| printk(BIOS_INFO, "sb800_devices_por_init()\n"); |
| /* SMBus Device, BDF:0-20-0 */ |
| printk(BIOS_INFO, "sb800_devices_por_init(): SMBus Device, BDF:0-20-0\n"); |
| dev = PCI_DEV(0, 0x14, 0);//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 A%x\n", |
| get_sb800_revision()); |
| |
| /* sbPorAtStartOfTblCfg */ |
| /* rpr 4.1.Set A-Link bridge access address. |
| * This is an I/O address. The I/O address must be on 16-byte boundary. */ |
| //pci_write_config32(dev, 0xf0, AB_INDX); |
| pmio_write(0xE0, AB_INDX & 0xFF); |
| pmio_write(0xE1, (AB_INDX >> 8) & 0xFF); |
| pmio_write(0xE2, (AB_INDX >> 16) & 0xFF); |
| pmio_write(0xE3, (AB_INDX >> 24) & 0xFF); |
| |
| /* To enable AB/BIF DMA access, a specific register inside the BIF register space needs to be configured first. */ |
| /* 4.2:Enables the SB800 to send transactions upstream over A-Link Express interface. */ |
| axcfg_reg(0x04, 1 << 2, 1 << 2); |
| //axindxc_reg(0x21, 0xff, 0); |
| |
| /* 4.15: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, 0x90, SMBUS_IO_BASE | 1); |
| /* The base address of SMBUS is set in a different way with sb700. */ |
| byte = (SMBUS_IO_BASE & 0xFF) | 1; |
| pmio_write(0x2c, byte & 0xFF); |
| pmio_write(0x2d, SMBUS_IO_BASE >> 8); |
| |
| /* AcpiMMioDecodeEn */ |
| byte = pmio_read(0x24); |
| byte |= 1; |
| byte &= ~(1 << 1); |
| pmio_write(0x24, byte); |
| /* enable smbus controller interface */ |
| //byte = pci_read_config8(dev, 0xd2); |
| //byte |= (1 << 0); |
| //pci_write_config8(dev, 0xd2, byte); |
| |
| /* KB2RstEnable */ |
| //pci_write_config8(dev, 0x40, 0x44); |
| |
| /* 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); */ |
| |
| /* 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, "sb800_devices_por_init(): IDE Device, BDF:0-20-1\n"); |
| dev = PCI_DEV(0, 0x14, 1);//pci_locate_device(PCI_ID(0x1002, 0x439C), 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, "sb800_devices_por_init(): LPC Device, BDF:0-20-3\n"); |
| dev = PCI_DEV(0, 0x14, 3);//pci_locate_device(PCI_ID(0x1002, 0x439D), 0); |
| /* DMA enable */ |
| pci_write_config8(dev, 0x40, 0x04); |
| |
| /* LPC Sync Timeout */ |
| pci_write_config8(dev, 0x49, 0xFF); |
| |
| /* Set LPC ROM size, it has been done in sb800_lpc_init(). |
| * enable LPC ROM range, 0xfff8: 512KB, 0xfff0: 1MB; |
| * enable LPC ROM range, 0xfff8: 512KB, 0xfff0: 1MB |
| * pci_write_config16(dev, 0x68, 0x000e) |
| * pci_write_config16(dev, 0x6c, 0xfff0);*/ |
| |
| /* 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, |
| */ |
| printk(BIOS_INFO, "sb800_devices_por_init(): P2P Bridge, BDF:0-20-4\n"); |
| dev = PCI_DEV(0, 0x14, 4);//pci_locate_device(PCI_ID(0x1002, 0x4384), 0); |
| |
| /* 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); |
| |
| 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:0-17-0, Non-Raid-5 SATA controller */ |
| printk(BIOS_INFO, "sb800_devices_por_init(): SATA Device, BDF:0-18-0\n"); |
| dev = PCI_DEV(0, 0x11, 0);//pci_locate_device(PCI_ID(0x1002, 0x4390), 0); |
| |
| /*PHY Global Control*/ |
| pci_write_config16(dev, 0x86, 0x2C00); |
| } |
| |
| /* 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. |
| */ |
| #if 0 |
| static void sb800_pmio_por_init(void) |
| { |
| u8 byte, i; |
| |
| printk(BIOS_INFO, "sb800_pmio_por_init()\n"); |
| |
| byte = pmio_read(0xD2); |
| byte |= 3 << 4; |
| pmio_write(0xD2, byte); |
| |
| byte = pmio_read(0x5D); |
| byte &= 3; |
| byte |= 1; |
| pmio_write(0x5D, 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); |
| |
| /* rpr2.15: Enabling Spread Spectrum */ |
| byte = pmio_read(0x42); |
| byte |= 1 << 7; |
| pmio_write(0x42, byte); |
| /* TODO: Check if it is necessary. IDE reset */ |
| byte = pmio_read(0xB2); |
| byte |= 1 << 0; |
| pmio_write(0xB2, byte); |
| |
| for (i=0; i<sizeof(pm_table)/sizeof(struct pm_entry); i++) { |
| byte = pmio_read(pm_table[i].port); |
| byte &= pm_table[i].mask; |
| byte |= pm_table[i].bit; |
| pmio_write(pm_table[i].port, byte); |
| } |
| pmio_write(0x00, 0x0E); |
| pmio_write(0x01, 0x00); |
| pmio_write(0x02, 0x4F); |
| pmio_write(0x03, 0x4A); |
| } |
| #endif |
| |
| /* |
| * Add any south bridge setting. |
| */ |
| static void sb800_pci_cfg(void) |
| { |
| device_t dev; |
| u8 byte; |
| |
| /* SMBus Device, BDF:0-20-0 */ |
| dev = PCI_DEV(0, 0x14, 0);//pci_locate_device(PCI_ID(0x1002, 0x4385), 0); |
| /* Enable watchdog decode timer */ |
| byte = pci_read_config8(dev, 0x41); |
| byte |= (1 << 3); |
| pci_write_config8(dev, 0x41, byte); |
| |
| /* rpr 7.4. Set to 1 to reset USB on the software (such as IO-64 or IO-CF9 cycles) |
| * generated PCIRST#. */ |
| byte = pmio_read(0xF0); |
| byte |= (1 << 2); |
| pmio_write(0xF0, byte); |
| |
| /* IDE Device, BDF:0-20-1 */ |
| dev = PCI_DEV(0, 0x14, 1);//pci_locate_device(PCI_ID(0x1002, 0x439C), 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 */ |
| /* The code below is ported from old chipset. It is not |
| * Mentioned in RPR. But I keep them. The registers and the |
| * comments are compatible. */ |
| dev = PCI_DEV(0, 0x14, 3);//pci_locate_device(PCI_ID(0x1002, 0x439D), 0); |
| /* Enabling LPC DMA function. */ |
| byte = pci_read_config8(dev, 0x40); |
| byte |= (1 << 2); |
| pci_write_config8(dev, 0x40, byte); |
| /* Disabling LPC TimeOut. 0x48[7] clear. */ |
| byte = pci_read_config8(dev, 0x48); |
| byte &= 0x7f; |
| pci_write_config8(dev, 0x48, byte); |
| /* Disabling LPC MSI Capability, 0x78[1] clear. */ |
| byte = pci_read_config8(dev, 0x78); |
| byte &= 0xfd; |
| pci_write_config8(dev, 0x78, byte); |
| |
| /* SATA Device, BDF:0-17-0, Non-Raid-5 SATA controller */ |
| dev = PCI_DEV(0, 0x11, 0);//pci_locate_device(PCI_ID(0x1002, 0x4390), 0); |
| /* rpr7.12 SATA MSI and D3 Power State Capability. */ |
| byte = pci_read_config8(dev, 0x40); |
| byte |= 1 << 0; |
| pci_write_config8(dev, 0x40, byte); |
| if (get_sb800_revision() <= 0x12) |
| pci_write_config8(dev, 0x34, 0x70); /* set 0x61 to 0x70 if S1 is not supported. */ |
| else |
| pci_write_config8(dev, 0x34, 0x50); /* set 0x61 to 0x50 if S1 is not supported. */ |
| byte &= ~(1 << 0); |
| pci_write_config8(dev, 0x40, byte); |
| } |
| |
| /* |
| */ |
| static void sb800_por_init(void) |
| { |
| /* sbDevicesPorInitTable + sbK8PorInitTable */ |
| sb800_devices_por_init(); |
| |
| /* sbPmioPorInitTable + sbK8PmioPorInitTable */ |
| //sb800_pmio_por_init(); |
| } |
| |
| /* |
| * It should be called during early POST after memory detection and BIOS shadowing but before PCI bus enumeration. |
| */ |
| static void sb800_before_pci_init(void) |
| { |
| sb800_pci_cfg(); |
| } |
| |
| /* |
| * This function should be called after enable_sb800_smbus(). |
| */ |
| static void sb800_early_setup(void) |
| { |
| printk(BIOS_INFO, "sb800_early_setup()\n"); |
| sb800_por_init(); |
| sb800_acpi_init(); |
| } |
| |
| static int smbus_read_byte(u32 device, u32 address) |
| { |
| return do_smbus_read_byte(SMBUS_IO_BASE, device, address); |
| } |
| |
| int s3_save_nvram_early(u32 dword, int size, int nvram_pos) |
| { |
| int i; |
| printk(BIOS_DEBUG, "Writing %x of size %d to nvram pos: %d\n", dword, size, nvram_pos); |
| |
| for (i = 0; i<size; i++) { |
| outb(nvram_pos, BIOSRAM_INDEX); |
| outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA); |
| nvram_pos++; |
| } |
| |
| return nvram_pos; |
| } |
| |
| int s3_load_nvram_early(int size, u32 *old_dword, int nvram_pos) |
| { |
| u32 data = *old_dword; |
| int i; |
| for (i = 0; i<size; i++) { |
| outb(nvram_pos, BIOSRAM_INDEX); |
| data &= ~(0xff << (i * 8)); |
| data |= inb(BIOSRAM_DATA) << (i *8); |
| nvram_pos++; |
| } |
| *old_dword = data; |
| printk(BIOS_DEBUG, "Loading %x of size %d to nvram pos:%d\n", *old_dword, size, |
| nvram_pos-size); |
| return nvram_pos; |
| } |
| |
| int acpi_get_sleep_type(void) |
| { |
| u16 tmp; |
| tmp = inw(ACPI_PM1_CNT_BLK); |
| return ((tmp & (7 << 10)) >> 10); |
| } |
| |
| #if IS_ENABLED(CONFIG_LATE_CBMEM_INIT) |
| unsigned long get_top_of_ram(void) |
| { |
| uint32_t xdata = 0; |
| int xnvram_pos = 0xfc, xi; |
| if (acpi_get_sleep_type() != 3) |
| return 0; |
| for (xi = 0; xi<4; xi++) { |
| outb(xnvram_pos, BIOSRAM_INDEX); |
| xdata &= ~(0xff << (xi * 8)); |
| xdata |= inb(BIOSRAM_DATA) << (xi *8); |
| xnvram_pos++; |
| } |
| return (unsigned long) xdata; |
| } |
| #endif |
| |
| #endif |