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>
26 #include "pc80/serial.c"
27 #include "console/console.c"
28 #include "lib/ramtest.c"
29 #include "cpu/x86/bist.h"
30 #include "cpu/x86/msr.h"
31 #include <cpu/amd/lxdef.h>
32 #include <cpu/amd/geode_post_code.h>
33 #include "southbridge/amd/cs5536/cs5536.h"
35 #include "southbridge/amd/cs5536/cs5536_early_smbus.c"
36 #include "southbridge/amd/cs5536/cs5536_early_setup.c"
38 static inline int spd_read_byte(unsigned int device, unsigned int address)
40 return smbus_read_byte(device, address);
43 #define ManualConf 0 /* Do automatic strapped PLL config */
44 #define PLLMSRhi 0x00001490 /* manual settings for the PLL */
45 #define PLLMSRlo 0x02000030
49 #include "northbridge/amd/lx/raminit.h"
50 #include "northbridge/amd/lx/pll_reset.c"
51 #include "northbridge/amd/lx/raminit.c"
52 #include "lib/generic_sdram.c"
53 #include "cpu/amd/model_lx/cpureginit.c"
54 #include "cpu/amd/model_lx/syspreinit.c"
56 static void msr_init(void)
60 /* Setup access to the cache for under 1MB. */
62 msr.lo = 0x1000A000; /* 0-A0000 write back */
63 wrmsr(CPU_RCONF_DEFAULT, msr);
65 msr.hi = 0x0; /* write back */
67 wrmsr(CPU_RCONF_A0_BF, msr);
68 wrmsr(CPU_RCONF_C0_DF, msr);
69 wrmsr(CPU_RCONF_E0_FF, msr);
71 /* Setup access to the cache for under 640K. Note MC not setup yet. */
74 wrmsr(MSR_GLIU0 + 0x20, msr);
78 wrmsr(MSR_GLIU0 + 0x21, msr);
82 wrmsr(MSR_GLIU1 + 0x20, msr);
86 wrmsr(MSR_GLIU1 + 0x21, msr);
89 static void mb_gpio_init(void)
91 /* Early mainboard specific GPIO setup. */
94 void cache_as_ram_main(void)
98 static const struct mem_controller memctrl[] = {
99 {.channel0 = {(0xa << 3) | 0, (0xa << 3) | 1}}
105 cs5536_early_setup();
107 /* Note: must do this AFTER the early_setup! It is counting on some
108 * early MSR setup for CS5536.
110 /* cs5536_disable_internal_uart: disable them for now, set them
113 /* If debug. real setup done in chipset init via Config.lb. */
114 cs5536_setup_onchipuart(1);
119 pll_reset(ManualConf);
123 sdram_initialize(1, memctrl);
126 /* ram_check(0x00000000, 640 * 1024); */
128 /* Memory is setup. Return to cache_as_ram.inc and continue to boot. */