2 #include <device/pci_def.h>
4 #include <device/pnp_def.h>
5 #include <arch/romcc_io.h>
7 #include <console/console.h>
8 #include "lib/ramtest.c"
9 #include "superio/winbond/w83627hf/w83627hf_early_serial.c"
10 #include "cpu/x86/bist.h"
11 #include "cpu/x86/msr.h"
12 #include <cpu/amd/gx2def.h>
14 #define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
16 #include "southbridge/amd/cs5536/cs5536_early_smbus.c"
17 #include "southbridge/amd/cs5536/cs5536_early_setup.c"
19 static inline int spd_read_byte(unsigned device, unsigned address)
21 return smbus_read_byte(device, address);
24 #include "northbridge/amd/gx2/raminit.h"
26 static inline unsigned int fls(unsigned int x)
30 __asm__("bsfl %1,%0\n\t"
33 "1:" : "=r" (r) : "g" (x));
37 static void sdram_set_spd_registers(const struct mem_controller *ctrl)
39 /* Total size of DIMM = 2^row address (byte 3) * 2^col address (byte 4) *
40 * component Banks (byte 17) * module banks, side (byte 5) *
41 * width in bits (byte 6,7)
42 * = Density per side (byte 31) * number of sides (byte 5) */
43 /* 1. Initialize GLMC registers base on SPD values, do one DIMM for now */
45 unsigned char module_banks, val;
47 msr = rdmsr(MC_CF07_DATA);
49 /* get module banks (sides) per dimm, SPD byte 5 */
50 module_banks = spd_read_byte(0xA0, 5);
51 if (module_banks < 1 || module_banks > 2)
52 print_err("Module banks per dimm\n");
54 msr.hi &= ~(1 << CF07_UPPER_D0_MB_SHIFT);
55 msr.hi |= (module_banks << CF07_UPPER_D0_MB_SHIFT);
57 /* get component banks per module bank, SPD byte 17 */
58 val = spd_read_byte(0xA0, 17);
59 if (val < 2 || val > 4)
60 print_err("Component banks per module bank\n");
62 msr.hi &= ~(0x1 << CF07_UPPER_D0_CB_SHIFT);
63 msr.hi |= (val << CF07_UPPER_D0_CB_SHIFT);
65 /* get the module bank density, SPD byte 31 */
66 val = spd_read_byte(0xA0, 31);
69 msr.hi &= ~(0xf << CF07_UPPER_D0_SZ_SHIFT);
70 msr.hi |= (val << CF07_UPPER_D0_SZ_SHIFT);
72 /* page size = 2^col address */
73 val = spd_read_byte(0xA0, 4);
75 msr.hi &= ~(0x7 << CF07_UPPER_D0_PSZ_SHIFT);
76 msr.hi |= (val << CF07_UPPER_D0_PSZ_SHIFT);
78 print_debug("computed msr.hi ");
79 print_debug_hex32(msr.hi);
83 wrmsr(MC_CF07_DATA, msr);
85 msr = rdmsr(0x20000019);
88 wrmsr(0x20000019, msr);
92 #include "northbridge/amd/gx2/raminit.c"
93 #include "lib/generic_sdram.c"
95 #define PLLMSRhi 0x00001490
96 #define PLLMSRlo 0x02000030
97 #define PLLMSRlo1 ((0xde << 16) | (1 << 26) | (1 << 24))
98 #define PLLMSRlo2 ((1<<14) |(1<<13) | (1<<0))
99 #include "northbridge/amd/gx2/pll_reset.c"
100 #include "cpu/amd/model_gx2/cpureginit.c"
101 #include "cpu/amd/model_gx2/syspreinit.c"
102 static void msr_init(void)
104 /* total physical memory */
105 __builtin_wrmsr(0x1808, 0x10f3bf00, 0x22fffc02);
107 /* traditional memory 0kB-512kB, 512kB-1MB */
108 __builtin_wrmsr(0x10000020, 0xfff80, 0x20000000);
109 __builtin_wrmsr(0x10000021, 0x80fffe0, 0x20000000);
111 __builtin_wrmsr(0x40000020, 0xfff80, 0x20000000);
112 __builtin_wrmsr(0x40000021, 0x80fffe0, 0x20000000);
114 /* put code in northbridge[init].c here */
117 static void main(unsigned long bist)
119 static const struct mem_controller memctrl [] = {
120 {.channel0 = {(0xa<<3)|0, (0xa<<3)|1}}
126 w83627hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
130 cs5536_early_setup();
135 print_err("done cpuRegInit\n");
137 sdram_initialize(1, memctrl);
141 /* Check all of memory */
142 //ram_check(0x00000000, 640*1024);