2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <device/pci_def.h>
24 #include <device/pnp_def.h>
25 #include <arch/romcc_io.h>
28 #include <console/console.h>
29 #include "lib/ramtest.c"
30 #include "cpu/x86/bist.h"
31 #include "cpu/x86/msr.h"
32 #include <cpu/amd/lxdef.h>
33 #include <cpu/amd/geode_post_code.h>
34 #include "southbridge/amd/cs5536/cs5536.h"
35 #include "spd_table.h"
37 #include "southbridge/amd/cs5536/cs5536_early_smbus.c"
38 #include "southbridge/amd/cs5536/cs5536_early_setup.c"
43 static int spd_read_byte(unsigned device, unsigned address)
47 if (device == DIMM0) {
48 for (i=0; i < (ARRAY_SIZE(spd_table)); i++) {
49 if (spd_table[i].address == address) {
50 return spd_table[i].data;
55 /* returns 0xFF on any failures */
59 #define ManualConf 0 /* Do automatic strapped PLL config */
60 /* CPU and GLIU mult/div 500/266*/
61 #define PLLMSRhi 0x0000039C /* 33MHz PCI, 0x000003DD for 66MHz PCI */
62 /* Hold Count - how long we will sit in reset */
63 #define PLLMSRlo 0x00DE6000
65 #include "northbridge/amd/lx/raminit.h"
66 #include "northbridge/amd/lx/pll_reset.c"
67 #include "northbridge/amd/lx/raminit.c"
68 #include "lib/generic_sdram.c"
69 #include "cpu/amd/model_lx/cpureginit.c"
70 #include "cpu/amd/model_lx/syspreinit.c"
71 #include "cpu/amd/model_lx/msrinit.c"
73 static void mb_gpio_init(void)
75 /* Early mainboard specific GPIO setup */
78 void main(unsigned long bist)
83 static const struct mem_controller memctrl[] = {
84 {.channel0 = {(0xa << 3) | 0, (0xa << 3) | 1}}
92 /* NOTE: must do this AFTER the early_setup!
93 * it is counting on some early MSR setup
96 /* cs5536_disable_internal_uart disable them. Set them up now... */
97 cs5536_setup_onchipuart(2); /* dbe61 uses UART2 as COM1 */
98 /* set address to 3F8 */
99 msr = rdmsr(MDD_LEG_IO);
101 wrmsr(MDD_LEG_IO, msr);
107 /* Halt if there was a built in self test failure */
108 report_bist_failure(bist);
110 pll_reset(ManualConf);
114 sdram_initialize(1, memctrl);
116 /* Dump memory configuratation */
118 msr = rdmsr(MC_CF07_DATA);
119 print_debug("MC_CF07_DATA: ");
120 print_debug_hex32(MC_CF07_DATA);
121 print_debug(" value is: ");
122 print_debug_hex32(msr.hi);
124 print_debug_hex32(msr.lo);
127 msr = rdmsr(MC_CF1017_DATA);
128 print_debug("MC_CF1017_DATA: ");
129 print_debug_hex32(MC_CF1017_DATA);
130 print_debug(" value is: ");
131 print_debug_hex32(msr.hi);
133 print_debug_hex32(msr.lo);
136 msr = rdmsr(MC_CF8F_DATA);
137 print_debug("MC_CF8F_DATA: ");
138 print_debug_hex32(MC_CF8F_DATA);
139 print_debug(" value is: ");
140 print_debug_hex32(msr.hi);
142 print_debug_hex32(msr.lo);
143 msr = rdmsr(MC_CF8F_DATA);
148 // ram_check(0x00000000, 640 * 1024);
149 // ram_check(1024 * 1024, 2 * 1024 * 1024);