| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| * Copyright (C) 2011 Mark Norman <mpnorman@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* Based on romstage.c from AMD's DB800 mainboard. */ |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <device/pci_def.h> |
| #include <arch/io.h> |
| #include <device/pnp_def.h> |
| #include <console/console.h> |
| #include <cpu/x86/bist.h> |
| #include <cpu/x86/msr.h> |
| #include <cpu/amd/lxdef.h> |
| #include <southbridge/amd/cs5536/cs5536.h> |
| #include <spd.h> |
| #include "southbridge/amd/cs5536/early_smbus.c" |
| #include "southbridge/amd/cs5536/early_setup.c" |
| #include <superio/smsc/smscsuperio/smscsuperio.h> |
| #include <northbridge/amd/lx/raminit.h> |
| |
| #define SERIAL_DEV PNP_DEV(0x4e, SMSCSUPERIO_SP1) |
| |
| int spd_read_byte(unsigned int device, unsigned int address) |
| { |
| if (device != DIMM0) |
| return 0xFF; /* No DIMM1, don't even try. */ |
| |
| return smbus_read_byte(device, address); |
| } |
| |
| #include "northbridge/amd/lx/pll_reset.c" |
| #include "lib/generic_sdram.c" |
| #include "cpu/amd/geode_lx/cpureginit.c" |
| #include "cpu/amd/geode_lx/syspreinit.c" |
| #include "cpu/amd/geode_lx/msrinit.c" |
| |
| #include <cpu/intel/romstage.h> |
| void main(unsigned long bist) |
| { |
| static const struct mem_controller memctrl[] = { |
| {.channel0 = {DIMM0, DIMM1}} |
| }; |
| |
| SystemPreInit(); |
| msr_init(); |
| |
| cs5536_early_setup(); |
| |
| /* Note: must do this AFTER the early_setup! It is counting on some |
| * early MSR setup for CS5536. |
| */ |
| smscsuperio_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); |
| console_init(); |
| |
| /* Halt if there was a built in self test failure */ |
| report_bist_failure(bist); |
| |
| pll_reset(); |
| |
| cpuRegInit(0, DIMM0, DIMM1, DRAM_TERMINATED); |
| |
| sdram_initialize(1, memctrl); |
| |
| /* Memory is setup. Return to cache_as_ram.inc and continue to boot. */ |
| } |