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/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2006 AMD
* Written by Yinghai Lu <yinghailu@amd.com> for AMD.
*
* Copyright (C) 2006 MSI
* Written by Bingxun Shi <bingxunshi@gmail.com> for MSI.
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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
*/
#define ASSEMBLY 1
#include <stdint.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <arch/io.h>
#include <arch/romcc_io.h>
#include <cpu/x86/lapic.h>
#include "pc80/mc146818rtc_early.c"
#include "southbridge/nvidia/mcp55/mcp55_enable_rom.c"
#include "northbridge/amd/amdk8/early_ht.c"
#include "cpu/x86/lapic/boot_cpu.c"
#include "cpu/x86/mtrr/earlymtrr.c"
#include "northbridge/amd/amdk8/reset_test.c"
static void sio_setup(void)
{
unsigned value;
uint32_t dword;
uint8_t byte;
byte = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0x7b);
byte |= 0x20;
pci_write_config8(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0x7b, byte);
dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa0);
dword |= (1<<0);
pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa0, dword);
}
#if CONFIG_LOGICAL_CPUS==1
#include "cpu/amd/dualcore/dualcore_id.c"
#endif
static unsigned long main(unsigned long bist)
{
/* Make cerain my local apic is useable */
enable_lapic();
/* Is this a cpu only reset? */
if (early_mtrr_init_detected()) {
if (last_boot_normal()) {
goto normal_image;
} else {
goto fallback_image;
}
}
/* Is this a secondary cpu? */
if (!boot_cpu()) {
if (last_boot_normal()) {
goto normal_image;
} else {
goto fallback_image;
}
}
/* Nothing special needs to be done to find bus 0 */
/* Allow the HT devices to be found */
enumerate_ht_chain();
sio_setup();
/* Setup the mcp55 */
mcp55_enable_rom();
/* Is this a deliberate reset by the bios */
if (bios_reset_detected() && last_boot_normal()) {
goto normal_image;
}
/* This is the primary cpu how should I boot? */
else if (do_normal_boot()) {
goto normal_image;
}
else {
goto fallback_image;
}
normal_image:
asm volatile ("jmp __normal_image"
: /* outputs */
: "a" (bist) /* inputs */
: /* clobbers */
);
fallback_image:
return bist;
}
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