50 lines
1.5 KiB
C
50 lines
1.5 KiB
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) 2016 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 <console/console.h>
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#include <soc/ramstage.h>
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#include <fsp/gop.h>
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#include <stdlib.h>
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#include <string.h>
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int init_igd_opregion(igd_opregion_t *opregion)
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{
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const optionrom_vbt_t *vbt;
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uint32_t vbt_len;
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memset(opregion, 0, sizeof(igd_opregion_t));
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/* Read VBT table from flash */
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vbt = fsp_get_vbt(&vbt_len);
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if (!vbt)
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die("vbt data not found");
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memcpy(&opregion->header.signature, IGD_OPREGION_SIGNATURE,
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sizeof(IGD_OPREGION_SIGNATURE) - 1);
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memcpy(opregion->header.vbios_version, vbt->coreblock_biosbuild, sizeof(u32));
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memcpy(opregion->vbt.gvd1, vbt, vbt->hdr_vbt_size <
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sizeof(opregion->vbt.gvd1) ? vbt->hdr_vbt_size :
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sizeof(opregion->vbt.gvd1));
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/* Size, in KB, of the entire OpRegion structure (including header)*/
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opregion->header.size = sizeof(igd_opregion_t) / KiB;
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opregion->header.version = IGD_OPREGION_VERSION;
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/* We just assume we're mobile for now */
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opregion->header.mailboxes = MAILBOXES_MOBILE;
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return 0;
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}
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