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#define ASSEMBLY 1
#define __PRE_RAM__
#include <stdint.h>
#include <device/pci_def.h>
#include <arch/io.h>
#include <device/pnp_def.h>
#include <arch/romcc_io.h>
#include <arch/hlt.h>
#include <stdlib.h>
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include "lib/ramtest.c"
#include "northbridge/via/vt8601/raminit.h"
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#include "pc80/udelay_io.c"
#include "lib/delay.c"
#include "cpu/x86/lapic/boot_cpu.c"
#include "lib/debug.c"
#include "southbridge/via/vt8231/vt8231_early_smbus.c"
#include "southbridge/via/vt8231/vt8231_early_serial.c"
static inline int spd_read_byte(unsigned device, unsigned address)
{
return smbus_read_byte(device, address);
}
#include "northbridge/via/vt8601/raminit.c"
/*
#include "lib/generic_sdram.c"
*/
static void enable_mainboard_devices(void)
{
device_t dev;
/* dev 0 for southbridge */
dev = pci_locate_device(PCI_ID(0x1106,0x8231), 0);
if (dev == PCI_DEV_INVALID) {
die("Southbridge not found!!!\n");
}
pci_write_config8(dev, 0x50, 7);
pci_write_config8(dev, 0x51, 0xff);
#if 0
// This early setup switches IDE into compatibility mode before PCI gets
// a chance to assign I/Os
// movl $CONFIG_ADDR(0, 0x89, 0x42), %eax
// movb $0x09, %dl
// movb $0x00, %dl
// PCI_WRITE_CONFIG_BYTE
//
#endif
/* we do this here as in V2, we can not yet do raw operations
* to pci!
*/
/* changed this to work correctly on later revisions of LB.
* The original dev += 0x100; stopped working. It also appears
* that if this is not set here, but in ide_init() only, the IDE
* does not work at all. I assume it needs to be set before something else,
* possibly before enabling the IDE peripheral, or it is a timing issue.
* Ben Hewson 29 Apr 2007.
*/
dev = pci_locate_device(PCI_ID(0x1106,0x0571), 0);
pci_write_config8(dev, 0x42, 0);
}
static void enable_shadow_ram(void)
{
device_t dev = 0;
unsigned char shadowreg;
shadowreg = pci_read_config8(dev, 0x63);
/* 0xf0000-0xfffff */
shadowreg |= 0x30;
pci_write_config8(dev, 0x63, shadowreg);
}
static void main(unsigned long bist)
{
unsigned long x;
if (bist == 0) {
early_mtrr_init();
}
enable_vt8231_serial();
uart_init();
console_init();
/* Halt if there was a built in self test failure */
report_bist_failure(bist);
enable_mainboard_devices();
enable_smbus();
enable_shadow_ram();
/*
this is way more generic than we need.
sdram_initialize(ARRAY_SIZE(cpu), cpu);
*/
sdram_set_registers((const struct mem_controller *) 0);
sdram_set_spd_registers((const struct mem_controller *) 0);
sdram_enable(0, (const struct mem_controller *) 0);
/* Check all of memory */
#if 0
ram_check(0x00000000, msr.lo);
#endif
#if 0
static const struct {
unsigned long lo, hi;
} check_addrs[] = {
/* Check 16MB of memory @ 0*/
{ 0x00000000, 0x01000000 },
#if TOTAL_CPUS > 1
/* Check 16MB of memory @ 2GB */
{ 0x80000000, 0x81000000 },
#endif
};
int i;
for(i = 0; i < ARRAY_SIZE(check_addrs); i++) {
ram_check(check_addrs[i].lo, check_addrs[i].hi);
}
#endif
}
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