u-boot/board/chromebook-x86/coreboot/coreboot.c
Gabe Black 63f559cd12 x86: Import code from coreboot's libpayload to parse the coreboot table
This change also forces the lib_sysinfo structure to be in the .data
section. Otherwise it ends up in the .bss section. U-boot assumes that it
doesn't need to copy it over during relocation, and instead fills that
whole section with zeroes. If we really were booting from ROM that would be
appropriate, but we need some information from the coreboot tables (memory
size) before then and have to fill that structure before relocation. We
skirt u-boot's assumption by putting this in .data where it assumes there
is still read only but non-zero data.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-12-19 13:26:15 +11:00

87 lines
1.8 KiB
C

/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/u-boot-x86.h>
#include <flash.h>
#include <netdev.h>
#include <asm/arch-coreboot/tables.h>
#include <asm/arch-coreboot/sysinfo.h>
DECLARE_GLOBAL_DATA_PTR;
unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
/*
* Miscellaneous platform dependent initializations
*/
int cpu_init_f(void)
{
int ret = get_coreboot_info(&lib_sysinfo);
if (ret != 0)
printf("Failed to parse coreboot tables.\n");
return ret;
}
int board_early_init_f(void)
{
return 0;
}
int board_early_init_r(void)
{
/* CPU Speed to 100MHz */
gd->cpu_clk = 100000000;
/* Crystal is 33.000MHz */
gd->bus_clk = 33000000;
return 0;
}
void show_boot_progress(int val)
{
}
int last_stage_init(void)
{
return 0;
}
#ifndef CONFIG_SYS_NO_FLASH
ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
{
return 0;
}
#endif
int board_eth_init(bd_t *bis)
{
return pci_eth_init(bis);
}
void setup_pcat_compatibility()
{
}