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cf87d3b503
Add support for some important configuration options and FSP memory init. The memory init uses swizzle tables from the device tree. Support for the FSP_S binary is also included. Bootstage timing is used for both FSP_M and FSP_S and memory-mapped SPI reads. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/* SPDX-License-Identifier: Intel */
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/*
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* Copyright (C) 2015-2016 Intel Corp.
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* (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
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* (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
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* Mostly taken from coreboot fsp2_0/memory_init.c
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*/
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#ifndef __ASM_FSP2_API_H
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#define __ASM_FSP2_API_H
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#include <asm/fsp/fsp_api.h>
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struct fspm_upd;
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struct fsps_upd;
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struct hob_header;
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enum fsp_boot_mode {
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FSP_BOOT_WITH_FULL_CONFIGURATION = 0x00,
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FSP_BOOT_WITH_MINIMAL_CONFIGURATION = 0x01,
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FSP_BOOT_ASSUMING_NO_CONFIGURATION_CHANGES = 0x02,
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FSP_BOOT_ON_S4_RESUME = 0x05,
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FSP_BOOT_ON_S3_RESUME = 0x11,
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FSP_BOOT_ON_FLASH_UPDATE = 0x12,
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FSP_BOOT_IN_RECOVERY_MODE = 0x20
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};
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struct __packed fsp_upd_header {
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u64 signature;
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u8 revision;
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u8 reserved[23];
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};
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/**
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* fsp_memory_init() - Init the SDRAM
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*
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* @s3wake: true if we are booting from resume, so cannot reinit the mememory
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* from scatch since we will lose its contents
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* @use_spi_flash: true to use the fast SPI driver to read FSP, otherwise use
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* mapped SPI
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* @return 0 if OK, -ve on error
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*/
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int fsp_memory_init(bool s3wake, bool use_spi_flash);
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typedef asmlinkage int (*fsp_memory_init_func)(struct fspm_upd *params,
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struct hob_header **hobp);
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/**
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* fsp_silicon_init() - Init the silicon
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*
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* This calls the FSP's 'silicon init' entry point
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*
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* @s3wake: true if we are booting from resume, so cannot reinit the mememory
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* from scatch since we will lose its contents
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* @use_spi_flash: true to use the fast SPI driver to read FSP, otherwise use
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* mapped SPI
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* @return 0 if OK, -ve on error
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*/
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int fsp_silicon_init(bool s3wake, bool use_spi_flash);
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typedef asmlinkage int (*fsp_silicon_init_func)(struct fsps_upd *params);
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#endif
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