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/*
* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/pci.h>
#include <asm/post.h>
#include <asm/arch/tnc.h>
#include <asm/fsp/fsp_support.h>
#include <asm/processor.h>
static void unprotect_spi_flash(void)
{
u32 bc;
bc = pci_read_config32(PCH_LPC_DEV, 0xd8);
bc |= 0x1; /* unprotect the flash */
pci_write_config32(PCH_LPC_DEV, 0xd8, bc);
}
int arch_cpu_init(void)
{
struct pci_controller *hose;
int ret;
post_code(POST_CPU_INIT);
#ifdef CONFIG_SYS_X86_TSC_TIMER
timer_set_base(rdtsc());
#endif
ret = x86_cpu_init_f();
if (ret)
return ret;
ret = pci_early_init_hose(&hose);
if (ret)
return ret;
unprotect_spi_flash();
return 0;
}
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