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12d2e683f45f19fe62d5893ce7b7329009a9a00c
system76-coreboot/src/mainboard/tyan/s4880/auto.c
Ronald G. Minnich 12d2e683f4 s4880 
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1305 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2003-12-02 20:43:08 +00:00

285 lines
7.2 KiB
C
Raw Blame History

#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"
#include "northbridge/amd/amdk8/cpu_rev.c"
#define REV_B_RESET 0
static void memreset_setup(void)
{
#if REV_B_RESET==1
outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 16); //REVC_MEMRST_EN=0
#else
outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 16); //REVC_MEMRST_EN=1
#endif
outb((0 << 7)|(0 << 6)|(0<<5)|(0<<4)|(1<<2)|(0<<0), SMBUS_IO_BASE + 0xc0 + 17);
}
static void memreset(int controllers, const struct mem_controller *ctrl)
{
udelay(800);
#if REV_B_RESET==1
outb((0<<7)|(0<<6)|(0<<5)|(0<<4)|(1<<2)|(1<<0), SMBUS_IO_BASE + 0xc0 + 17); //REVB_MEMRST_L=1
#endif
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_4p[4][4] = {
{ 0x00070101, 0x00010202, 0x00030404, 0x00010204 },
{ 0x00010202, 0x000b0101, 0x00010208, 0x00030808 },
{ 0x00030808, 0x00010208, 0x000b0101, 0x00010202 },
{ 0x00010204, 0x00030404, 0x00010202, 0x00070101 }
};
if (!(node>=maxnodes || row>=maxnodes)) {
ret=rows_4p[node][row];
}
return ret;
}
static inline void activate_spd_rom(const struct mem_controller *ctrl)
{
#define SMBUS_HUB 0x18
unsigned device=(ctrl->channel0[0])>>8;
smbus_write_byte(SMBUS_HUB , 0x01, device);
smbus_write_byte(SMBUS_HUB , 0x03, 0);
}
#if 0
static inline void change_i2c_mux(unsigned device)
{
#define SMBUS_HUB 0x18
smbus_write_byte(SMBUS_HUB , 0x01, device);
smbus_write_byte(SMBUS_HUB , 0x03, 0);
}
#endif
static inline int spd_read_byte(unsigned device, unsigned address)
{
return smbus_read_byte(device, address);
}
/* include mainboard specific ht code */
#include "hypertransport.c"
//#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"
#include "resourcemap.c" /* tyan does not want the default */
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 THIRD_CPU 1
#define FOURTH_CPU 1
#define TOTAL_CPUS (FIRST_CPU + SECOND_CPU + THIRD_CPU + FOURTH_CPU)
#define RC0 ((1<<1)<<8)
#define RC1 ((1<<2)<<8)
#define RC2 ((1<<3)<<8)
#define RC3 ((1<<4)<<8)
#define DIMM0 0x50
#define DIMM1 0x51
#define DIMM2 0x52
#define DIMM3 0x53
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 = { RC0|DIMM0, RC0|DIMM2, 0, 0 },
.channel1 = { RC0|DIMM1, RC0|DIMM3, 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 = { RC1|DIMM0, 0 , 0, 0 },
.channel1 = { RC1|DIMM1, 0, 0, 0 },
},
#endif
#if THIRD_CPU
{
.node_id = 2,
.f0 = PCI_DEV(0, 0x1a, 0),
.f1 = PCI_DEV(0, 0x1a, 1),
.f2 = PCI_DEV(0, 0x1a, 2),
.f3 = PCI_DEV(0, 0x1a, 3),
.channel0 = { RC2|DIMM0, 0, 0, 0 },
.channel1 = { RC2|DIMM1, 0, 0, 0 },
},
#endif
#if FOURTH_CPU
{
.node_id = 3,
.f0 = PCI_DEV(0, 0x1b, 0),
.f1 = PCI_DEV(0, 0x1b, 1),
.f2 = PCI_DEV(0, 0x1b, 2),
.f3 = PCI_DEV(0, 0x1b, 3),
.channel0 = { RC3|DIMM0, 0, 0, 0 },
.channel1 = { RC3|DIMM1, 0, 0, 0 },
},
#endif
};
int i;
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_s4880_resource_map();
setup_coherent_ht_domain();
enumerate_ht_chain(0);
distinguish_cpu_resets(0);
#if 0
dump_pci_devices();
#endif
enable_smbus();
#if 0
// activate_spd_rom(&cpu[0]);
// dump_spd_registers(&cpu[0]);
// for(i=0;i<4;i++) {
// activate_spd_rom(&cpu[i]);
// dump_smbus_registers();
// }
for(i=1;i<256;i=i*2) {
change_i2c_mux(i);
dump_smbus_registers();
}
#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, 1));
#endif
/* Check all of memory */
#if 0
msr_t msr;
msr = rdmsr(TOP_MEM2);
print_debug("TOP_MEM2: ");
print_debug_hex32(msr.hi);
print_debug_hex32(msr.lo);
print_debug("\r\n");
#endif
/*
#if 0
ram_check(0x00000000, msr.lo+(msr.hi<<32));
#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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