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/*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2008
* Graeme Russ, graeme.russ@gmail.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/u-boot-x86.h>
#include <flash.h>
#include <netdev.h>
#include <ns16550.h>
#include <asm/msr.h>
#include <asm/cache.h>
#include <asm/cpu.h>
#include <asm/io.h>
#include <asm/mtrr.h>
#include <asm/arch/tables.h>
#include <asm/arch/sysinfo.h>
#include <asm/arch/timestamp.h>
DECLARE_GLOBAL_DATA_PTR;
int arch_cpu_init(void)
{
int ret = get_coreboot_info(&lib_sysinfo);
if (ret != 0) {
printf("Failed to parse coreboot tables.\n");
return ret;
}
timestamp_init();
return x86_cpu_init_f();
}
int board_early_init_f(void)
{
return 0;
}
int print_cpuinfo(void)
{
return default_print_cpuinfo();
}
int last_stage_init(void)
{
if (gd->flags & GD_FLG_COLD_BOOT)
timestamp_add_to_bootstage();
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 board_final_cleanup(void)
{
/* Un-cache the ROM so the kernel has one
* more MTRR available.
*
* Coreboot should have assigned this to the
* top available variable MTRR.
*/
u8 top_mtrr = (native_read_msr(MTRR_CAP_MSR) & 0xff) - 1;
u8 top_type = native_read_msr(MTRR_PHYS_BASE_MSR(top_mtrr)) & 0xff;
/* Make sure this MTRR is the correct Write-Protected type */
if (top_type == MTRR_TYPE_WRPROT) {
struct mtrr_state state;
mtrr_open(&state);
wrmsrl(MTRR_PHYS_BASE_MSR(top_mtrr), 0);
wrmsrl(MTRR_PHYS_MASK_MSR(top_mtrr), 0);
mtrr_close(&state);
}
/* Issue SMI to Coreboot to lock down ME and registers */
printf("Finalizing Coreboot\n");
outb(0xcb, 0xb2);
}
void panic_puts(const char *str)
{
NS16550_t port = (NS16550_t)0x3f8;
NS16550_init(port, 1);
while (*str)
NS16550_putc(port, *str++);
}
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