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https://github.com/AsahiLinux/u-boot
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98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
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// 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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#include <common.h>
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#include <binman.h>
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#include <asm/mrccache.h>
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#include <asm/fsp/fsp_infoheader.h>
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#include <asm/fsp2/fsp_api.h>
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#include <asm/fsp2/fsp_internal.h>
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#include <asm/arch/fsp/fsp_configs.h>
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#include <asm/arch/fsp/fsp_m_upd.h>
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static int prepare_mrc_cache_type(enum mrc_type_t type,
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struct mrc_data_container **cachep)
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{
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struct mrc_data_container *cache;
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struct mrc_region entry;
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int ret;
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ret = mrccache_get_region(type, NULL, &entry);
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if (ret)
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return ret;
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cache = mrccache_find_current(&entry);
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if (!cache)
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return -ENOENT;
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log_debug("MRC at %x, size %x\n", (uint)cache->data, cache->data_size);
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*cachep = cache;
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return 0;
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}
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int prepare_mrc_cache(struct fspm_upd *upd)
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{
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struct mrc_data_container *cache;
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int ret;
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ret = prepare_mrc_cache_type(MRC_TYPE_NORMAL, &cache);
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if (ret)
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return log_msg_ret("Cannot get normal cache", ret);
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upd->arch.nvs_buffer_ptr = cache->data;
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ret = prepare_mrc_cache_type(MRC_TYPE_VAR, &cache);
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if (ret)
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return log_msg_ret("Cannot get var cache", ret);
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upd->config.variable_nvs_buffer_ptr = cache->data;
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return 0;
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}
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int fsp_memory_init(bool s3wake, bool use_spi_flash)
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{
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struct fspm_upd upd, *fsp_upd;
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fsp_memory_init_func func;
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struct binman_entry entry;
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struct fsp_header *hdr;
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struct hob_header *hob;
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struct udevice *dev;
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int ret;
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ret = fsp_locate_fsp(FSP_M, &entry, use_spi_flash, &dev, &hdr, NULL);
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if (ret)
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return log_msg_ret("locate FSP", ret);
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debug("Found FSP_M at %x, size %x\n", hdr->img_base, hdr->img_size);
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/* Copy over the default config */
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fsp_upd = (struct fspm_upd *)(hdr->img_base + hdr->cfg_region_off);
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if (fsp_upd->header.signature != FSPM_UPD_SIGNATURE)
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return log_msg_ret("Bad UPD signature", -EPERM);
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memcpy(&upd, fsp_upd, sizeof(upd));
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ret = fspm_update_config(dev, &upd);
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if (ret)
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return log_msg_ret("Could not setup config", ret);
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debug("SDRAM init...");
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bootstage_start(BOOTSTATE_ID_ACCUM_FSP_M, "fsp-m");
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func = (fsp_memory_init_func)(hdr->img_base + hdr->fsp_mem_init);
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ret = func(&upd, &hob);
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bootstage_accum(BOOTSTATE_ID_ACCUM_FSP_M);
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if (ret)
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return log_msg_ret("SDRAM init fail\n", ret);
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gd->arch.hob_list = hob;
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debug("done\n");
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ret = fspm_done(dev);
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if (ret)
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return log_msg_ret("fsm_done\n", ret);
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return 0;
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}
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