| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2009 One Laptop per Child, Association, 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * Part of this file is from cx700 port, part of is from cn700 port, |
| * and acpi_is_wakeup_early_via_VX800() is part of Rudolf's S3 patch. |
| */ |
| |
| #define RAMINIT_SYSINFO 1 |
| #define CACHE_AS_RAM_ADDRESS_DEBUG 0 |
| |
| #include <stdint.h> |
| #include <device/pci_def.h> |
| #include <device/pci_ids.h> |
| #include <arch/io.h> |
| #include <device/pnp_def.h> |
| #include <arch/romcc_io.h> |
| #include <arch/hlt.h> |
| #include "pc80/serial.c" |
| #include "console/console.c" |
| #include "lib/ramtest.c" |
| #include "northbridge/via/vx800/vx800.h" |
| #include "cpu/x86/mtrr/earlymtrr.c" |
| #include "cpu/x86/bist.h" |
| #include "pc80/udelay_io.c" |
| #include "lib/delay.c" |
| #include <string.h> |
| |
| /* This file contains the board-special SI value for raminit.c. */ |
| #include "driving_clk_phase_data.c" |
| |
| #include "northbridge/via/vx800/raminit.h" |
| #include "northbridge/via/vx800/raminit.c" |
| |
| #include "wakeup.h" |
| |
| #include "superio/winbond/w83697hf/w83697hf_early_serial.c" |
| |
| #define SERIAL_DEV PNP_DEV(0x2e, W83697HF_SP1) |
| |
| /* |
| * This acpi_is_wakeup_early_via_VX800 is from Rudolf's patch on the list: |
| * http://www.coreboot.org/pipermail/coreboot/2008-January/028787.html. |
| */ |
| static int acpi_is_wakeup_early_via_vx800(void) |
| { |
| device_t dev; |
| u16 tmp, result; |
| |
| print_debug("In acpi_is_wakeup_early_via_vx800\n"); |
| /* Power management controller */ |
| dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_VIA, |
| PCI_DEVICE_ID_VIA_VX855_LPC), 0); |
| |
| if (dev == PCI_DEV_INVALID) |
| die("Power management controller not found\n"); |
| |
| /* Set ACPI base address to I/O VX800_ACPI_IO_BASE. */ |
| pci_write_config16(dev, 0x88, VX800_ACPI_IO_BASE | 0x1); |
| |
| /* Enable ACPI accessm RTC signal gated with PSON. */ |
| pci_write_config8(dev, 0x81, 0x84); |
| |
| tmp = inw(VX800_ACPI_IO_BASE + 0x04); |
| result = ((tmp & (7 << 10)) >> 10) == 1 ? 3 : 0; |
| print_debug(" boot_mode="); |
| print_debug_hex16(result); |
| print_debug("\n"); |
| return result; |
| } |
| |
| static inline int spd_read_byte(unsigned device, unsigned address) |
| { |
| return smbus_read_byte(device, address); |
| } |
| |
| /* All content of this function came from the cx700 port of coreboot. */ |
| static void enable_mainboard_devices(void) |
| { |
| device_t dev; |
| #if 0 |
| /* |
| * Add and close this switch, since some line cause error, some |
| * written at elsewhere (stage1 stage2). |
| */ |
| u8 regdata; |
| dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_VIA, |
| PCI_DEVICE_ID_VIA_VX855_LPC), 0); |
| |
| /* Disable GP3. */ |
| pci_write_config8(dev, 0x98, 0x00); |
| |
| pci_write_config8(dev, 0x50, 0x80); /* Disable mc97. */ |
| |
| /* |
| * Martin: Disable internal KBC configuration. |
| * |
| * Internal Config is needed to decide which key can be pressed to |
| * resume from s3. |
| */ |
| pci_write_config8(dev, 0x51, 0x2d); |
| |
| /* This causes irq0 can not be triggerd, since bit 5 was set to 0. */ |
| /* pci_write_config8(dev, 0x58, 0x42); */ |
| |
| /* These writing may... TODO */ |
| regdata = pci_read_config8(dev, 0x58); |
| regdata |= 0x41; |
| pci_write_config8(dev, 0x58, regdata); |
| pci_write_config8(dev, 0x59, 0x80); |
| pci_write_config8(dev, 0x5b, 0x01); |
| #endif |
| |
| print_debug("In enable_mainboard_devices \n"); |
| |
| /* Enable P2P Bridge Header for external PCI bus. */ |
| dev = pci_locate_device(PCI_ID(0x1106, 0xa353), 0); |
| pci_write_config8(dev, 0x4f, 0x41); |
| |
| /* |
| * "5324" already is the default value of the PCI IDE device, cancel |
| * this PCI write. |
| * |
| * [william 20080124]: Fix bug that can not boot Ubuntu at the |
| * beginning time. |
| */ |
| #if 0 |
| dev = 0; |
| dev = pci_locate_device(PCI_ID(0x1106, PCI_DEVICE_ID_VIA_VX855_IDE), 0); |
| |
| uint16_t values; |
| values = pci_read_config16(dev, 0xBA); |
| values &= ~0xffff; |
| values |= 0x5324; |
| pci_write_config16(dev, 0xBA, values); |
| #endif |
| } |
| |
| /* |
| * Most content of this function came from the cx700 port of coreboot. |
| * Turn on the shadow of E-seg. |
| */ |
| static void enable_shadow_ram(void) |
| { |
| uint8_t shadowreg; |
| |
| /* |
| * Changed the value from 0x2a to 0x3f. "read only" may block "write"? |
| * and maybe in C-seg "write" will be needed? |
| */ |
| pci_write_config8(PCI_DEV(0, 0, 3), 0x80, 0xff); |
| |
| /* 0xf0000-0xfffff - ACPI tables */ |
| shadowreg = pci_read_config8(PCI_DEV(0, 0, 3), 0x83); |
| shadowreg |= 0x30; |
| pci_write_config8(PCI_DEV(0, 0, 3), 0x83, shadowreg); |
| |
| /* 0xe0000-0xeffff - elfload? */ |
| /* |
| * In s3 resume process, wakeup.c, I use E-seg to hold the code |
| * (which can not locate in the area to be covered) that will copy |
| * 0-A-seg and F-seg from TOP-mem back to their normal location. |
| */ |
| pci_write_config8(PCI_DEV(0, 0, 3), 0x82, 0xff); |
| |
| #if 0 |
| /* Enable shadow RAM as normal DRAM */ |
| /* 0xc0000-0xcffff - VGA BIOS */ |
| pci_write_config8(PCI_DEV(0, 0, 3), 0x80, 0x2a); |
| pci_write_config8(PCI_DEV(0, 0, 7), 0x61, 0x00); |
| /* 0xd0000-0xdffff - ?? */ |
| /* pci_write_config8(PCI_DEV(0, 0, 3), 0x81, 0xff); */ |
| /* pci_write_config8(PCI_DEV(0, 0, 7), 0x62, 0xff); */ |
| |
| /* Do it again for the vlink controller. */ |
| shadowreg = pci_read_config8(PCI_DEV(0, 0, 7), 0x63); |
| shadowreg |= 0x30; |
| pci_write_config8(PCI_DEV(0, 0, 7), 0x63, shadowreg); |
| #endif |
| } |
| |
| /* |
| * Added this table 2008-11-28. |
| * This table contains the value needed to be set before begin to init DRAM. |
| * Note: REV_Bx should be checked for changes when porting a new board! |
| */ |
| static const struct VIA_PCI_REG_INIT_TABLE mNbStage1InitTbl[] = { |
| /* VT3409 no PCI-E */ |
| { 0x00, 0xFF, NB_APIC_REG(0x61), 0xFF, 0x0E }, // Set Exxxxxxx as pcie mmio config range |
| { 0x00, 0xFF, NB_APIC_REG(0x60), 0xF4, 0x0B }, // Support extended cfg address of pcie |
| // {Â 0x00, 0xFF, NB_APIC_REG(0x42), 0xF9, 0x02 }, // APIC Interrupt((BT_INTR)) Control |
| // Set ROMSIP value by software |
| |
| /* |
| { 0x00, 0xFF, NB_HOST_REG(0x70), 0x77, 0x33 }, // 2x Host Adr Strobe/Pad Pullup Driving = 3 |
| { 0x00, 0xFF, NB_HOST_REG(0x71), 0x77, 0x33 }, // 2x Host Adr Strobe/Pad Pulldown Driving = 3 |
| { 0x00, 0xFF, NB_HOST_REG(0x72), 0x77, 0x33 }, // 4x Host Dat Strobe/Pad Pullup Driving = 3 |
| { 0x00, 0xFF, NB_HOST_REG(0x73), 0x77, 0x33 }, // 4x Host Dat Strobe/Pad Pulldown Driving = 3 |
| { 0x00, 0xFF, NB_HOST_REG(0x74), 0xFF, 0x21 }, // Memory I/F timing ctrl |
| { 0x00, 0xFF, NB_HOST_REG(0x74), 0xFF, 0xE1 }, // Memory I/F timing ctrl |
| { 0x00, 0xFF, NB_HOST_REG(0x75), 0xFF, 0x18 }, // AGTL+ I/O Circuit |
| { 0x00, 0xFF, NB_HOST_REG(0x76), 0xFB, 0x0C }, // AGTL+ Compensation Status |
| { 0x00, 0xFF, NB_HOST_REG(0x78), 0xFF, 0x33 }, // 2X AGTL+ Auto Compensation Offset |
| { 0x00, 0xFF, NB_HOST_REG(0x79), 0xFF, 0x33 }, // 4X AGTL+ Auto Compensation Offset |
| { 0x00, 0xFF, NB_HOST_REG(0x7A), 0x3F, 0x72 }, // AGTL Compensation Status |
| { 0x00, 0xFF, NB_HOST_REG(0x7A), 0x3F, 0x77 }, // AGTL Compensation Status |
| { 0x00, 0xFF, NB_HOST_REG(0x7B), 0xFF, 0x44 }, // Input Host Address / Host Strobe Delay Control for HA Group |
| { 0x00, 0xFF, NB_HOST_REG(0x7B), 0xFF, 0x22 }, // Input Host Address / Host Strobe Delay Control for HA Group |
| { 0x00, 0xFF, NB_HOST_REG(0x7C), 0xFF, 0x00 }, // Output Delay Control of PAD for HA Group |
| { 0x00, 0xFF, NB_HOST_REG(0x7D), 0xFF, 0xAA }, // Host Address / Address Clock Output Delay Control (Only for P4 Bus) |
| { 0x00, 0xFF, NB_HOST_REG(0x7E), 0xFF, 0x10 }, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus) |
| { 0x00, 0xFF, NB_HOST_REG(0x7E), 0xFF, 0x40 }, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus) |
| { 0x00, 0xFF, NB_HOST_REG(0x7F), 0xFF, 0x10 }, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus) |
| { 0x00, 0xFF, NB_HOST_REG(0x7F), 0xFF, 0x40 }, // Host Address CKG Rising / Falling Time Control (Only for P4 Bus) |
| { 0x00, 0xFF, NB_HOST_REG(0x80), 0x3F, 0x44 }, // Host Data Receiving Strobe Delay Ctrl 1 |
| { 0x00, 0xFF, NB_HOST_REG(0x81), 0xFF, 0x44 }, // Host Data Receiving Strobe Delay Ctrl 2 |
| { 0x00, 0xFF, NB_HOST_REG(0x82), 0xFF, 0x00 }, // Output Delay of PAD for HDSTB |
| { 0x00, 0xFF, NB_HOST_REG(0x83), 0xFF, 0x00 }, // Output Delay of PAD for HD |
| { 0x00, 0xFF, NB_HOST_REG(0x84), 0xFF, 0x44 }, // Host Data / Strobe CKG Control (Group 0) |
| { 0x00, 0xFF, NB_HOST_REG(0x85), 0xFF, 0x44 }, // Host Data / Strobe CKG Control (Group 1) |
| { 0x00, 0xFF, NB_HOST_REG(0x86), 0xFF, 0x44 }, // Host Data / Strobe CKG Control (Group 2) |
| { 0x00, 0xFF, NB_HOST_REG(0x87), 0xFF, 0x44 }, // Host Data / Strobe CKG Control (Group 3) |
| */ |
| |
| // CPU Host Bus Control |
| { 0x00, 0xFF, NB_HOST_REG(0x50), 0x1F, 0x08 }, // Request phase ctrl: Dynamic Defer Snoop Stall Count = 8 |
| // { 0x00, 0xFF, NB_HOST_REG(0x51), 0xFF, 0x7F }, // CPU I/F Ctrl-1: Disable Fast DRDY and RAW |
| { 0x00, 0xFF, NB_HOST_REG(0x51), 0xFF, 0x7C }, // CPU I/F Ctrl-1: Disable Fast DRDY and RAW |
| { 0x00, 0xFF, NB_HOST_REG(0x52), 0xCB, 0xCB }, // CPU I/F Ctrl-2: Enable all for performance |
| // { 0x00, 0xFF, NB_HOST_REG(0x53), 0xFF, 0x88 }, // Arbitration: Host/Master Occupancy timer = 8*4 HCLK |
| { 0x00, 0xFF, NB_HOST_REG(0x53), 0xFF, 0x44 }, // Arbitration: Host/Master Occupancy timer = 4*4 HCLK |
| { 0x00, 0xFF, NB_HOST_REG(0x54), 0x1E, 0x1C }, // Misc Ctrl: Enable 8QW burst Mem Access |
| // { 0x00, 0xFF, NB_HOST_REG(0x55), 0x06, 0x06 }, // Miscellaneous Control 2 |
| { 0x00, 0xFF, NB_HOST_REG(0x55), 0x06, 0x04 }, // Miscellaneous Control 2 |
| { 0x00, 0xFF, NB_HOST_REG(0x56), 0xF7, 0x63 }, // Write Policy 1 |
| // { 0x00, 0xFF, NB_HOST_REG(0x59), 0x3D, 0x01 }, // CPU Miscellaneous Control 1, enable Lowest-Priority IPL |
| // { 0x00, 0xFF, NB_HOST_REG(0x5c), 0xFF, 0x00 }, // CPU Miscellaneous Control 2 |
| { 0x00, 0xFF, NB_HOST_REG(0x5D), 0xFF, 0xA2 }, // Write Policy |
| { 0x00, 0xFF, NB_HOST_REG(0x5E), 0xFF, 0x88 }, // Bandwidth Timer |
| { 0x00, 0xFF, NB_HOST_REG(0x5F), 0x46, 0x46 }, // CPU Misc Ctrl |
| // { 0x00, 0xFF, NB_HOST_REG(0x90), 0xFF, 0x0B }, // CPU Miscellaneous Control 3 |
| // { 0x00, 0xFF, NB_HOST_REG(0x96), 0x0B, 0x0B }, // CPU Miscellaneous Control 2 |
| { 0x00, 0xFF, NB_HOST_REG(0x96), 0x0B, 0x0A }, // CPU Miscellaneous Control 2 |
| { 0x00, 0xFF, NB_HOST_REG(0x98), 0xC1, 0x41 }, // CPU Miscellaneous Control 3 |
| { 0x00, 0xFF, NB_HOST_REG(0x99), 0x0E, 0x06 }, // CPU Miscellaneous Control 4 |
| |
| // Set APIC and SMRAM |
| { 0x00, 0xFF, NB_HOST_REG(0x97), 0xFF, 0x00 }, // APIC Related Control |
| { 0x00, 0xFF, NB_DRAMC_REG(0x86), 0xD6, 0x29 }, // SMM and APIC Decoding: enable APIC, MSI and SMRAM A-Seg |
| { 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } // End of the table |
| }; |
| |
| #define USE_VCP 1 /* 0 means "use DVP". */ |
| #define USE_COM1 1 |
| #define USE_COM2 0 |
| |
| #define gCom1Base 0x3f8 |
| #define gCom2Base 0x2f8 |
| |
| void EmbedComInit(void) |
| { |
| u8 ByteVal; |
| u16 ComBase; |
| |
| /* Enable NB multiple function control. */ |
| ByteVal = pci_read_config8(PCI_DEV(0, 0, 0), 0x4f); |
| ByteVal = ByteVal | 0x01; |
| pci_write_config8(PCI_DEV(0, 0, 0), 0x4f, ByteVal); |
| |
| /* VGA enable. */ |
| ByteVal = pci_read_config8(PCI_DEV(0, 0, 3), 0xA1); |
| ByteVal = ByteVal | 0x80; |
| pci_write_config8(PCI_DEV(0, 0, 3), 0xA1, ByteVal); |
| |
| ByteVal = pci_read_config8(PCI_DEV(0, 0, 3), 0xA7); |
| ByteVal = ByteVal | 0x08; |
| pci_write_config8(PCI_DEV(0, 0, 3), 0xA7, ByteVal); |
| |
| /* Enable P2P IO/mem. */ |
| ByteVal = pci_read_config8(PCI_DEV(0, 1, 0), 0x4); |
| ByteVal = ByteVal | 0x07; |
| pci_write_config8(PCI_DEV(0, 1, 0), 0x4, ByteVal); |
| |
| /* Turn on graphic chip I/O port port access. */ |
| ByteVal = inb(0x3C3); |
| ByteVal = ByteVal | 0x01; |
| outb(ByteVal, 0x3C3); |
| |
| /* Turn off graphic chip register protection. */ |
| outb(0x10, 0x3C4); |
| ByteVal = inb(0x3C5); |
| ByteVal = ByteVal | 0x01; |
| outb(ByteVal, 0x3C5); |
| |
| /* South module pad share enable 0x3C5.78[7]. */ |
| outb(0x78, 0x3C4); |
| ByteVal = inb(0x3C5); |
| ByteVal = ByteVal | 0x80; |
| outb(ByteVal, 0x3C5); |
| |
| /* Enable UART function multiplex with DVP or VCP pad D17F0Rx46[7,6]. */ |
| ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0x46); |
| if (USE_VCP == 1) |
| ByteVal = (ByteVal & 0x3F) | 0x40; /* Multiplex with VCP. */ |
| else |
| ByteVal = (ByteVal & 0x3F) | 0xC0; /* Multiplex with DVP. */ |
| pci_write_config8(PCI_DEV(0, 17, 0), 0x46, ByteVal); |
| |
| /* Enable embedded COM1 and COM2 D17F0RxB0[5,4]. */ |
| ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0xB0); |
| ByteVal = ByteVal & 0xcf; |
| /* Multiplex with VCP. */ |
| if (USE_COM1 == 1) |
| ByteVal = ByteVal | 0x10; |
| if (USE_COM2 == 1) |
| ByteVal = ByteVal | 0x20; |
| pci_write_config8(PCI_DEV(0, 17, 0), 0xB0, ByteVal); |
| |
| if (USE_COM1 == 1) |
| ComBase = gCom1Base; |
| else |
| ComBase = gCom2Base; |
| |
| //noharddrive |
| |
| /* Set embedded COM1 I/O base = 0x3E8 (D17F0RB4, ByteVal = 0xFD) */ |
| if (USE_COM1 == 1) { |
| ByteVal = (u8) ((gCom1Base >> 3) | 0x80); |
| pci_write_config8(PCI_DEV(0, 17, 0), 0xB4, ByteVal); |
| ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0xb2); |
| ByteVal = (ByteVal & 0xf0) | 0x04; |
| pci_write_config8(PCI_DEV(0, 17, 0), 0xB2, ByteVal); |
| } |
| |
| /* Set embedded COM2 I/O base = 0x2E8 (D17F0RB5, ByteVal = 0xDD). */ |
| if (USE_COM2 == 1) { |
| ByteVal = (u8) ((gCom2Base >> 3) | 0x80); |
| pci_write_config8(PCI_DEV(0, 17, 0), 0xB5, ByteVal); |
| ByteVal = pci_read_config8(PCI_DEV(0, 17, 0), 0xb2); |
| ByteVal = (ByteVal & 0x0f) | 0x30; |
| pci_write_config8(PCI_DEV(0, 17, 0), 0xB2, ByteVal); |
| } |
| /* No port 80 biger then 0x10. */ |
| |
| /* Disable interrupt. */ |
| ByteVal = inb(ComBase + 3); |
| outb(ByteVal & 0x7F, ComBase + 3); |
| outb(0x00, ComBase + 1); |
| |
| /* Set BAUD rate. */ |
| ByteVal = inb(ComBase + 3); |
| outb(ByteVal | 0x80, ComBase + 3); |
| outb(0x01, ComBase); |
| outb(0x00, ComBase + 1); |
| |
| /* Set frame format. */ |
| ByteVal = inb(ComBase + 3); |
| outb(ByteVal & 0x3F, ComBase + 3); |
| outb(0x03, ComBase + 3); |
| outb(0x00, ComBase + 2); |
| outb(0x00, ComBase + 4); |
| |
| /* SOutput("Embedded COM output\n"); */ |
| /* while(1); */ |
| } |
| |
| /* cache_as_ram.inc jumps to here. */ |
| void main(unsigned long bist) |
| { |
| u16 boot_mode; |
| u8 rambits, Data8, Data; |
| device_t device; |
| /* device_t dev; */ |
| |
| /* |
| * Enable multifunction for northbridge. These 4 lines (until |
| * console_init()) are the same with epia-cn port. |
| */ |
| pci_write_config8(PCI_DEV(0, 0, 0), 0x4f, 0x01); |
| /* EmbedComInit(); */ |
| w83697hf_set_clksel_48(SERIAL_DEV); |
| w83697hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); |
| uart_init(); |
| /* enable_vx800_serial(); */ |
| /* uart_init(); */ |
| |
| /* |
| * 1. D15F0 |
| * a) RxBAh = 71h |
| * b) RxBBh = 05h |
| * c) RxBEh = 71h |
| * d) RxBFh = 05h |
| * |
| * 2. D17F0 |
| * a) RxA0h = 06h |
| * b) RxA1h = 11h |
| * c) RxA2h = 27h |
| * d) RxA3h = 32h |
| * e) Rx79h = 40h |
| * f) Rx72h = 27h |
| * g) Rx73h = 32h |
| */ |
| |
| pci_write_config16(PCI_DEV(0, 0xf, 0), 0xBA, |
| PCI_DEVICE_ID_VIA_VX855_IDE); |
| pci_write_config16(PCI_DEV(0, 0xf, 0), 0xBE, |
| PCI_DEVICE_ID_VIA_VX855_IDE); |
| pci_write_config16(PCI_DEV(0, 0x11, 0), 0xA0, PCI_VENDOR_ID_VIA); |
| pci_write_config16(PCI_DEV(0, 0x11, 0), 0xA2, |
| PCI_DEVICE_ID_VIA_VX855_LPC); |
| Data8 = pci_read_config8(PCI_DEV(0, 0x11, 0), 0x79); |
| Data8 &= ~0x40; |
| Data8 |= 0x40; |
| pci_write_config8(PCI_DEV(0, 0x11, 0), 0x79, Data8); |
| pci_write_config16(PCI_DEV(0, 0x11, 0), 0x72, |
| PCI_DEVICE_ID_VIA_VX855_LPC); |
| |
| /* |
| * There are two function definitions of console_init(), while the |
| * src/arch/i386/lib is the right one. |
| */ |
| console_init(); |
| |
| /* Decide if this is a s3 wakeup or a normal boot. */ |
| boot_mode = acpi_is_wakeup_early_via_vx800(); |
| |
| /* |
| * 2008-11-27 Add this, to transfer "cpu restart" to "cold boot". |
| * When this boot is not a S3 resume, and PCI registers had been |
| * written, then this must be a CPU restart (result of OS reboot cmd), |
| * so we need a real "cold boot". |
| */ |
| if ((boot_mode != 3) |
| && (pci_read_config8(PCI_DEV(0, 0, 3), 0x80) != 0)) { |
| outb(6, 0xcf9); |
| } |
| |
| /* x86 cold boot I/O cmd. */ |
| /* These 2 lines are the same with epia-cn port. */ |
| enable_smbus(); |
| |
| /* This fix does help vx800!, but vx855 doesn't need this. */ |
| /* smbus_fixup(&ctrl); */ |
| |
| if (bist == 0) { |
| /* |
| * CAR needs MTRR until memory is ok, so disable this |
| * early_mtrr_init() call. |
| */ |
| #if 0 |
| print_debug("doing early_mtrr\n"); |
| early_mtrr_init(); |
| #endif |
| } |
| |
| /* Halt if there was a built-in self test failure. */ |
| report_bist_failure(bist); |
| |
| print_debug("Enabling mainboard devices\n"); |
| enable_mainboard_devices(); |
| |
| /* |
| * Get NB chip revision from D0F4RxF6, revision will be used in |
| * via_pci_inittable. |
| */ |
| device = PCI_DEV(0, 0, 4); |
| Data = pci_read_config8(device, 0xf6); |
| print_debug("NB chip revision ="); |
| print_debug_hex8(Data); |
| print_debug("\n"); |
| |
| /* Make NB ready before DRAM init. */ |
| via_pci_inittable(Data, mNbStage1InitTbl); |
| |
| /* |
| * When resume from s3, DRAM init is skipped, so need to recovery |
| * any PCI register related to DRAM init. d0f3 didn't lose its power |
| * during whole s3 time, so any register not belonging to d0f3 needs |
| * to be recovered. |
| */ |
| #if 1 |
| if (boot_mode == 3) { |
| u8 i; |
| u8 ramregs[] = { 0x43, 0x42, 0x41, 0x40 }; |
| DRAM_SYS_ATTR DramAttr; |
| |
| print_debug("This is an S3 wakeup\n"); |
| |
| memset(&DramAttr, 0, sizeof(DRAM_SYS_ATTR)); |
| /* |
| * Step 1: DRAM detection; DDR1 or DDR2; Get SPD Data; |
| * Rank Presence; 64 or 128bit; Unbuffered or registered; |
| * 1T or 2T. |
| */ |
| DRAMDetect(&DramAttr); |
| |
| /* |
| * Begin to get RAM size, 43,42 41 40 contains the end |
| * address of last rank in DDR2 slot. |
| */ |
| device = PCI_DEV(0, 0, 3); |
| for (rambits = 0, i = 0; i < ARRAY_SIZE(ramregs); i++) { |
| rambits = pci_read_config8(device, ramregs[i]); |
| if (rambits != 0) |
| break; |
| } |
| |
| DRAMDRDYSetting(&DramAttr); |
| |
| Data = 0x80; /* This value is same with DevInit.c. */ |
| pci_write_config8(PCI_DEV(0, 0, 4), 0xa3, Data); |
| pci_write_config8(PCI_DEV(0, 17, 7), 0x60, rambits << 2); |
| Data = pci_read_config8(MEMCTRL, 0x88); |
| pci_write_config8(PCI_DEV(0, 17, 7), 0xE5, Data); |
| |
| /* Just copy this function from draminit to here! */ |
| DRAMRegFinalValue(&DramAttr); |
| |
| /* Just copy this function from draminit to here! */ |
| SetUMARam(); |
| |
| print_debug("Resume from S3, RAM init was ignored\n"); |
| } else { |
| ddr2_ram_setup(); |
| ram_check(0, 640 * 1024); |
| } |
| #endif |
| |
| /* ddr2_ram_setup(); */ |
| /* This line is the same with cx700 port. */ |
| enable_shadow_ram(); |
| |
| /* |
| * For coreboot most time of S3 resume is the same as normal boot, |
| * so some memory area under 1M become dirty, so before this happen, |
| * I need to backup the content of mem to top-mem. |
| * |
| * I will reserve the 1M top-men in LBIO table in coreboot_table.c |
| * and recovery the content of 1M-mem in wakeup.c. |
| */ |
| #if PAYLOAD_IS_SEABIOS == 1 |
| if (boot_mode == 3) { |
| /* An idea of Libo.Feng at amd.com in http://www.coreboot.org/pipermail/coreboot/2008-December/043111.html |
| * |
| * I want move the 1M data, I have to set some MTRRs myself. |
| * Setting MTRR before back memory save s3 resume time about |
| * 0.14 seconds. |
| * |
| * !!! Since CAR stack uses cache, and we are using cache |
| * here, we must be careful: |
| * |
| * 1. during this MTRR code, must no function call (after |
| * this MTRR, I think it should be OK to use function). |
| * 2. Before stack switch, no use variable that have value |
| * set before this. |
| * 3. Due to 2, take care of "cpu_reset", I directlly set it |
| * to ZERO. |
| */ |
| u32 memtop = *(u32 *) WAKE_MEM_INFO; |
| u32 memtop1 = *(u32 *) WAKE_MEM_INFO - 0x100000; |
| u32 memtop2 = *(u32 *) WAKE_MEM_INFO - 0x200000; |
| u32 memtop3 = *(u32 *) WAKE_MEM_INFO - 64 * 1024 - 0x100000; |
| u32 memtop4 = |
| *(u32 *) WAKE_MEM_INFO - 64 * 1024 - 0x100000 + 0xe0000; |
| #if 0 |
| __asm__ volatile ( |
| "movl $0x204, %%ecx\n\t" |
| "xorl %%edx, %%edx\n\t" |
| "movl %0,%%eax\n\t" |
| "orl $(0 | 6), %%eax\n\t" |
| "wrmsr\n\t" |
| |
| "movl $0x205, %%ecx\n\t" |
| "xorl %%edx, %%edx\n\t" |
| "movl $0x100000,%%eax\n\t" |
| "decl %%eax\n\t" |
| "notl %%eax\n\t" |
| "orl $(0 | 0x800), %%eax\n\t" |
| "wrmsr\n\t" |
| ::"g"(memtop2) |
| ); |
| |
| __asm__ volatile ( |
| "movl $0x206, %%ecx\n\t" |
| "xorl %%edx, %%edx\n\t" |
| "movl %0,%%eax\n\t" |
| "orl $(0 | 6), %%eax\n\t" |
| "wrmsr\n\t" |
| |
| "movl $0x207, %%ecx\n\t" |
| "xorl %%edx, %%edx\n\t" |
| "movl $0x100000,%%eax\n\t" |
| "decl %%eax\n\t" |
| "notl %%eax\n\t" |
| "orl $(0 | 0x800), %%eax\n\t" |
| "wrmsr\n\t" |
| ::"g"(memtop1) |
| ); |
| |
| __asm__ volatile ( |
| "movl $0x208, %ecx\n\t" |
| "xorl %edx, %edx\n\t" |
| "movl $0,%eax\n\t" |
| "orl $(0 | 6), %eax\n\t" |
| "wrmsr\n\t" |
| |
| "movl $0x209, %ecx\n\t" |
| "xorl %edx, %edx\n\t" |
| "movl $0x100000,%eax\n\t" |
| "decl %eax\n\t" |
| "notl %eax\n\t" |
| "orl $(0 | 0x800), %eax\n\t" |
| "wrmsr\n\t" |
| ); |
| #endif |
| |
| /* |
| * WAKE_MEM_INFO is inited in get_set_top_available_mem() |
| * in tables.c these two memcpy() not not be enabled if set |
| * the MTRR around this two lines. |
| */ |
| #if 0 |
| __asm__ volatile ( |
| "movl $0, %%esi\n\t" |
| "movl %0, %%edi\n\t" |
| "movl $0xa0000, %%ecx\n\t" |
| "shrl $2, %%ecx\n\t" |
| "rep movsd\n\t" |
| ::"g"(memtop3) |
| ); |
| |
| __asm__ volatile ( |
| "movl $0xe0000, %%esi\n\t" |
| "movl %0, %%edi\n\t" |
| "movl $0x20000, %%ecx\n\t" |
| "shrl $2, %%ecx\n\t" |
| "rep movsd\n\t" |
| ::"g"(memtop4) |
| ); |
| #endif |
| /* This can have function call, because no variable used before this. */ |
| print_debug("Copy memory to high memory to protect s3 wakeup vector code \n"); |
| memcpy((unsigned char *)((*(u32 *) WAKE_MEM_INFO) - 64 * 1024 - |
| 0x100000), (unsigned char *)0, 0xa0000); |
| memcpy((unsigned char *)((*(u32 *) WAKE_MEM_INFO) - 64 * 1024 - |
| 0x100000 + 0xe0000), (unsigned char *)0xe0000, 0x20000); |
| |
| /* Restore the MTRR previously modified. */ |
| #if 0 |
| __asm__ volatile ( |
| "wbinvd\n\t" |
| "xorl %edx, %edx\n\t" |
| "xorl %eax, %eax\n\t" |
| "movl $0x204, %ecx\n\t" |
| "wrmsr\n\t" |
| "movl $0x205, %ecx\n\t" |
| "wrmsr\n\t" |
| "movl $0x206, %ecx\n\t" |
| "wrmsr\n\t" |
| "movl $0x207, %ecx\n\t" |
| "wrmsr\n\t" |
| "movl $0x208, %ecx\n\t" |
| "wrmsr\n\t" |
| "movl $0x209, %ecx\n\t" |
| "wrmsr\n\t" |
| ); |
| #endif |
| } |
| |
| #endif |
| |
| } |
| |