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#define ASSEMBLY 1
#include <stdint.h>
#include <device/pci_def.h>
#include <cpu/p6/apic.h>
#include <arch/io.h>
#include <arch/romcc_io.h>
#include "pc80/serial.c"
#include "arch/i386/lib/console.c"
#include "ram/ramtest.c"
#include "northbridge/amd/amdk8/early_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 "debug.c"
static void memreset_setup(void)
{
/* 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);
}
static void memreset(int controllers, const struct mem_controller *ctrl)
{
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 int spd_read_byte(unsigned device, unsigned address)
{
return smbus_read_byte(device, address);
}
#include "northbridge/amd/amdk8/cpu_ldtstop.c"
#include "southbridge/amd/amd8111/amd8111_ldtstop.c"
#include "northbridge/amd/amdk8/raminit.c"
#include "northbridge/amd/amdk8/coherent_ht.c"
#include "sdram/generic_sdram.c"
static void enable_lapic(void)
{
msr_t msr;
msr = rdmsr(0x1b);
msr.hi &= 0xffffff00;
msr.lo &= 0x000007ff;
msr.lo |= APIC_DEFAULT_BASE | (1 << 11);
wrmsr(0x1b, msr);
}
static void stop_this_cpu(void)
{
unsigned apicid;
apicid = apic_read(APIC_ID) >> 24;
/* Send an APIC INIT to myself */
apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid));
apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_INT_ASSERT | APIC_DM_INIT);
/* Wait for the ipi send to finish */
apic_wait_icr_idle();
/* Deassert the APIC INIT */
apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid));
apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT);
/* Wait for the ipi send to finish */
apic_wait_icr_idle();
/* If I haven't halted spin forever */
for(;;) {
hlt();
}
}
#define FIRST_CPU 1
#define SECOND_CPU 1
#define TOTAL_CPUS (FIRST_CPU + SECOND_CPU)
static void main(void)
{
/*
* GPIO28 of 8111 will control H0_MEMRESET_L
* GPIO29 of 8111 will control H1_MEMRESET_L
*/
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
};
if (cpu_init_detected()) {
asm("jmp __cpu_reset");
}
enable_lapic();
init_timer();
if (!boot_cpu() ) {
notify_bsp_ap_is_stopped();
stop_this_cpu();
}
uart_init();
console_init();
setup_default_resource_map();
setup_coherent_ht_domain();
enumerate_ht_chain(0);
distinguish_cpu_resets(0);
#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();
#endif
#if 0
dump_pci_device(PCI_DEV(0, 0x18, 2));
#endif
/* Check all of memory */
#if 0
msr_t msr;
msr = rdmsr(TOP_MEM);
print_debug("TOP_MEM: ");
print_debug_hex32(msr.hi);
print_debug_hex32(msr.lo);
print_debug("\r\n");
#endif
/*
#if 1
ram_check(0x00000000, msr.lo);
#else
#if TOTAL_CPUS < 2
// Check 16MB of memory @ 0
ram_check(0x00000000, 0x01000000);
#else
// Check 16MB of memory @ 2GB
ram_check(0x80000000, 0x81000000);
#endif
#endif
*/
}
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