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#define ASSEMBLY 1
#include <stdint.h>
#include <device/pci_def.h>
#include <arch/io.h>
#include <device/pnp_def.h>
#include <arch/romcc_io.h>
#include <arch/smp/lapic.h>
#include "option_table.h"
#include "pc80/mc146818rtc_early.c"
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include "ram/ramtest.c"
#include "northbridge/amd/amdk8/incoherent_ht.c"
#include "southbridge/amd/amd8111/amd8111_early_smbus.c"
#include "northbridge/amd/amdk8/raminit.h"
#include "cpu/k8/apic_timer.c"
#include "lib/delay.c"
#include "cpu/p6/boot_cpu.c"
#include "northbridge/amd/amdk8/reset_test.c"
#include "northbridge/amd/amdk8/debug.c"
#include "northbridge/amd/amdk8/cpu_rev.c"
#include "superio/NSC/pc87360/pc87360_early_serial.c"
#define SERIAL_DEV PNP_DEV(0x2e, PC87360_SP1)
static void hard_reset(void)
{
set_bios_reset();
/* enable cf9 */
pci_write_config8(PCI_DEV(0, 0x04, 3), 0x41, 0xf1);
/* reset */
outb(0x0e, 0x0cf9);
}
static void soft_reset(void)
{
set_bios_reset();
pci_write_config8(PCI_DEV(0, 0x04, 0), 0x47, 1);
}
/*
* GPIO28 of 8111 will control H0_MEMRESET_L
* GPIO29 of 8111 will control H1_MEMRESET_L
*/
static void memreset_setup(void)
{
if (is_cpu_pre_c0()) {
/* Set the memreset low */
outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 28);
/* Ensure the BIOS has control of the memory lines */
outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 29);
} else {
/* Ensure the CPU has controll of the memory lines */
outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 29);
}
}
static void memreset(int controllers, const struct mem_controller *ctrl)
{
if (is_cpu_pre_c0()) {
udelay(800);
/* Set memreset_high */
outb((0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 28);
udelay(90);
}
}
static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
{
/* Routing Table Node i
*
* F0: 0x40, 0x44, 0x48, 0x4c, 0x50, 0x54, 0x58, 0x5c
* i: 0, 1, 2, 3, 4, 5, 6, 7
*
* [ 0: 3] Request Route
* [0] Route to this node
* [1] Route to Link 0
* [2] Route to Link 1
* [3] Route to Link 2
* [11: 8] Response Route
* [0] Route to this node
* [1] Route to Link 0
* [2] Route to Link 1
* [3] Route to Link 2
* [19:16] Broadcast route
* [0] Route to this node
* [1] Route to Link 0
* [2] Route to Link 1
* [3] Route to Link 2
*/
uint32_t ret = 0x00010101; /* default row entry */
static const unsigned int rows_2p[2][2] = {
{ 0x00050101, 0x00010404 },
{ 0x00010404, 0x00050101 }
};
if (maxnodes > 2) {
print_debug("this mainboard is only designed for 2 cpus\r\n");
maxnodes = 2;
}
if (!(node >= maxnodes || row >= maxnodes)) {
ret = rows_2p[node][row];
}
return ret;
}
static inline void activate_spd_rom(const struct mem_controller *ctrl)
{
/* nothing to do */
}
static inline int spd_read_byte(unsigned device, unsigned address)
{
return smbus_read_byte(device, address);
}
#include "northbridge/amd/amdk8/raminit.c"
#include "northbridge/amd/amdk8/coherent_ht.c"
#include "sdram/generic_sdram.c"
#define FIRST_CPU 1
#define SECOND_CPU 1
#define TOTAL_CPUS (FIRST_CPU + SECOND_CPU)
static void main(void)
{
static const struct mem_controller cpu[] = {
#if FIRST_CPU
{
.node_id = 0,
.f0 = PCI_DEV(0, 0x18, 0),
.f1 = PCI_DEV(0, 0x18, 1),
.f2 = PCI_DEV(0, 0x18, 2),
.f3 = PCI_DEV(0, 0x18, 3),
.channel0 = { (0xa<<3)|0, (0xa<<3)|2, 0, 0 },
.channel1 = { (0xa<<3)|1, (0xa<<3)|3, 0, 0 },
},
#endif
#if SECOND_CPU
{
.node_id = 1,
.f0 = PCI_DEV(0, 0x19, 0),
.f1 = PCI_DEV(0, 0x19, 1),
.f2 = PCI_DEV(0, 0x19, 2),
.f3 = PCI_DEV(0, 0x19, 3),
.channel0 = { (0xa<<3)|4, (0xa<<3)|6, 0, 0 },
.channel1 = { (0xa<<3)|5, (0xa<<3)|7, 0, 0 },
},
#endif
};
int needs_reset;
enable_lapic();
init_timer();
if (cpu_init_detected()) {
asm volatile ("jmp __cpu_reset");
}
distinguish_cpu_resets();
if (!boot_cpu()) {
stop_this_cpu();
}
pc87360_enable_serial(SERIAL_DEV, TTYS0_BASE);
uart_init();
console_init();
setup_default_resource_map();
needs_reset = setup_coherent_ht_domain();
needs_reset |= ht_setup_chain(PCI_DEV(0, 0x18, 0), 0x80);
if (needs_reset) {
print_info("ht reset -\r\n");
soft_reset();
}
#if 0
print_pci_devices();
#endif
enable_smbus();
#if 0
dump_spd_registers(&cpu[0]);
#endif
memreset_setup();
sdram_initialize(sizeof(cpu)/sizeof(cpu[0]), cpu);
#if 0
dump_pci_devices();
dump_pci_device(PCI_DEV(0, 0x18, 2));
#endif
#if 0
/* Check the first 1M */
ram_check(0x00000000, 0x000100000);
#endif
}
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