1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
#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>
#if 0
#include <arch/smp/lapic.h>
#endif
#include <arch/hlt.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 "southbridge/intel/i82801dbm/i82801dbm_early_smbus.c"
#include "northbridge/intel/i855pm/raminit.h"
#if 0
#include "cpu/p6/apic_timer.c"
#include "lib/delay.c"
#endif
#include "cpu/x86/lapic/boot_cpu.c"
#include "northbridge/intel/i855pm/debug.c"
#include "superio/winbond/w83627hf/w83627hf_early_serial.c"
#include "cpu/x86/mtrr/earlymtrr.c"
#include "cpu/x86/bist.h"
#define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
static void hard_reset(void)
{
outb(0x0e, 0x0cf9);
}
static void memreset_setup(void)
{
}
static void memreset(int controllers, const struct mem_controller *ctrl)
{
}
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/intel/i855pm/raminit.c"
#include "northbridge/intel/i855pm/reset_test.c"
#include "sdram/generic_sdram.c"
static void main(unsigned long bist)
{
static const struct mem_controller memctrl[] = {
{
.d0 = PCI_DEV(0, 0, 1),
.channel0 = { (0xa<<3)|0, 0 },
},
};
if (bist == 0) {
early_mtrr_init();
#if 0
enable_lapic();
init_timer();
#endif
}
w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);
uart_init();
console_init();
/* Halt if there was a built in self test failure */
report_bist_failure(bist);
#if 0
print_pci_devices();
#endif
if(!bios_reset_detected()) {
enable_smbus();
#if 1
dump_spd_registers(&memctrl[0]);
// dump_smbus_registers();
#endif
memreset_setup();
sdram_initialize(sizeof(memctrl)/sizeof(memctrl[0]), memctrl);
}
#if 0
else {
/* clear memory 1meg */
__asm__ volatile(
"1: \n\t"
"movl %0, %%fs:(%1)\n\t"
"addl $4,%1\n\t"
"subl $4,%2\n\t"
"jnz 1b\n\t"
:
: "a" (0), "D" (0), "c" (1024*1024)
);
}
#endif
#if 0
dump_pci_devices();
#endif
#if 0
dump_pci_device(PCI_DEV(0, 0, 0));
#endif
/*
#if 0
ram_check(0x00000000, msr.lo+(msr.hi<<32));
#else
#if 0
// Check 16MB of memory @ 0
ram_check(0x00000000, 0x01000000);
#else
// Check 16MB of memory @ 2GB
ram_check(0x80000000, 0x81000000);
#endif
#endif
*/
}
|
