soc/intel/common/ebda: Drop code
There is no need to use EBDA to pass cbmem_top from romstage to later stages. Change-Id: I46e2459ff3c785f530cabc5930004ef920ffc89a Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36362 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner Reviewed-by: Nico Huber <nico.h@gmx.de>
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef SOC_EBDA_H
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#define SOC_EBDA_H
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#include <stdint.h>
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struct ebda_config {
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uint32_t signature; /* EBDA signature */
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uint32_t cbmem_top; /* coreboot memory start */
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};
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#endif
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config SOC_INTEL_COMMON_BLOCK_EBDA
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bool
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select EARLY_EBDA_INIT
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help
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Intel Processor common EBDA library support
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@ -1,3 +0,0 @@
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romstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_EBDA) += ebda.c
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ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_EBDA) += ebda.c
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postcar-$(CONFIG_SOC_INTEL_COMMON_BLOCK_EBDA) += ebda.c
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/ebda.h>
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#include <intelblocks/ebda.h>
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#include <string.h>
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void initialize_ebda_area(void)
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{
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struct ebda_config ebda_cfg;
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/* Initialize EBDA area early during romstage. */
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setup_default_ebda();
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ebda_cfg.signature = EBDA_SIGNATURE;
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fill_memmap_ebda(&ebda_cfg);
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write_ebda_data(&ebda_cfg, sizeof(ebda_cfg));
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}
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void retrieve_ebda_object(struct ebda_config *cfg)
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{
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read_ebda_data(cfg, sizeof(*cfg));
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if (cfg->signature != EBDA_SIGNATURE)
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memset(cfg, 0, sizeof(*cfg));
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}
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef SOC_INTEL_COMMON_BLOCK_EBDA_H
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#define SOC_INTEL_COMMON_BLOCK_EBDA_H
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#define EBDA_SIGNATURE 0xebdaebda
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/* EBDA structure */
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struct ebda_config {
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uint32_t signature; /* EBDA signature */
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uint32_t cbmem_top; /* coreboot memory start */
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};
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/* Initialize EBDA and store structure into EBDA area */
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void initialize_ebda_area(void);
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/*
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* Fill the ebda object pointed to by cfg. Object will be zero filled
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* if signature check fails. */
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void retrieve_ebda_object(struct ebda_config *cfg);
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/* API for filling ebda with data in romstage */
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void fill_memmap_ebda(struct ebda_config *cfg);
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#endif
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@ -1,26 +0,0 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2018 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef SOC_EBDA_H
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#define SOC_EBDA_H
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#include <stdint.h>
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struct ebda_config {
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uint32_t signature; /* EBDA signature */
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uint32_t cbmem_top; /* coreboot memory start */
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};
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#endif
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@ -1,26 +0,0 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2017 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef SOC_EBDA_H
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#define SOC_EBDA_H
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#include <stdint.h>
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struct ebda_config {
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uint32_t signature; /* EBDA signature */
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uint32_t cbmem_top; /* coreboot memory start */
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};
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#endif
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