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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
*
* 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
*/
#define ASSEMBLY 1
#define __PRE_RAM__
#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 "arch/i386/lib/console.c"
#include "lib/ramtest.c"
#include "northbridge/via/cx700/raminit.h"
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#define DEACTIVATE_CAR 1
#define DEACTIVATE_CAR_FILE "cpu/via/car/cache_as_ram_post.c"
#include "cpu/x86/car/copy_and_run.c"
#include "pc80/udelay_io.c"
#include "lib/delay.c"
#include "cpu/x86/lapic/boot_cpu.c"
#include "northbridge/via/cx700/cx700_early_smbus.c"
#include "debug.c"
#include "northbridge/via/cx700/cx700_early_serial.c"
#include "northbridge/via/cx700/raminit.c"
static void enable_mainboard_devices(void)
{
device_t dev;
dev = pci_locate_device(PCI_ID(0x1106, 0x8324), 0);
if (dev == PCI_DEV_INVALID) {
die("LPC bridge not found!!!\n");
}
// Disable GP3
pci_write_config8(dev, 0x98, 0x00);
// Disable mc97
pci_write_config8(dev, 0x50, 0x80);
// Disable internal KBC Configuration
pci_write_config8(dev, 0x51, 0x2d);
pci_write_config8(dev, 0x58, 0x42);
pci_write_config8(dev, 0x59, 0x80);
pci_write_config8(dev, 0x5b, 0x01);
// Enable P2P Bridge Header for External PCI BUS.
dev = pci_locate_device(PCI_ID(0x1106, 0x324e), 0);
if (dev == PCI_DEV_INVALID) {
die("P2P bridge not found!!!\n");
}
pci_write_config8(dev, 0x4f, 0x41);
// Switch SATA to non-RAID mode
dev = pci_locate_device(PCI_ID(0x1106, 0x0581), 0);
if (dev != PCI_DEV_INVALID) {
pci_write_config16(dev, 0xBA, 0x5324);
}
}
static void enable_shadow_ram(const struct mem_controller *ctrl)
{
u8 shadowreg;
pci_write_config8(PCI_DEV(0, 0, 3), 0x80, 0x2a);
/* 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);
}
static void main(unsigned long bist)
{
/* Set statically so it should work with cx700 as well */
static const struct mem_controller cx700[] = {
{
.channel0 = {0x50, 0x51},
},
};
enable_smbus();
enable_cx700_serial();
uart_init();
console_init();
/* Halt if there was a built in self test failure */
report_bist_failure(bist);
enable_mainboard_devices();
/* Allows access to all northbridge devices */
pci_write_config8(PCI_DEV(0, 0, 0), 0x4f, 0x01);
sdram_set_registers(cx700);
enable_shadow_ram(cx700);
sdram_enable(cx700);
#ifdef DEACTIVATE_CAR
print_debug("Deactivating CAR");
#include DEACTIVATE_CAR_FILE
print_debug(" - Done.\r\n");
#endif
copy_and_run(0);
}
void amd64_main(unsigned long bist) {
main(bist);
}
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