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https://github.com/AsahiLinux/u-boot
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91785f70b9
Since these board functions seem to be the same for all boards which use FSP, move them into a common file. We can adjust this later if future FSPs need more flexibility. This creates a generic PCI MMC device. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
45 lines
758 B
C
45 lines
758 B
C
/*
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* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/pci.h>
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#include <asm/post.h>
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#include <asm/arch/tnc.h>
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#include <asm/fsp/fsp_support.h>
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#include <asm/processor.h>
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static void unprotect_spi_flash(void)
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{
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u32 bc;
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bc = pci_read_config32(PCH_LPC_DEV, 0xd8);
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bc |= 0x1; /* unprotect the flash */
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pci_write_config32(PCH_LPC_DEV, 0xd8, bc);
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}
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int arch_cpu_init(void)
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{
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struct pci_controller *hose;
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int ret;
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post_code(POST_CPU_INIT);
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#ifdef CONFIG_SYS_X86_TSC_TIMER
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timer_set_base(rdtsc());
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#endif
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ret = x86_cpu_init_f();
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if (ret)
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return ret;
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ret = pci_early_init_hose(&hose);
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if (ret)
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return ret;
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unprotect_spi_flash();
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return 0;
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}
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