2e7f6ccafc
The new config choice is called RUN_FSP_GOP. Some things had to happen
on the road:
* Drop confusing config GOP_SUPPORT,
* Add HAVE_FSP_GOP to chipsets that support it,
* Make running the GOP an option for FSP2.0 by returning 0
in random VBT getters.
Change-Id: I92f88424004a4c0abf1f39cc02e2a146bddbcedf
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/19815
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
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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 <cbfs.h>
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#include <console/console.h>
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#include <arch/acpi.h>
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#include <bootmode.h>
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#include "vbt.h"
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#define VBT_SIGNATURE 0x54425624
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enum cb_err locate_vbt(struct region_device *rdev)
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{
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uint32_t vbtsig = 0;
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struct cbfsf file_desc;
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if (cbfs_boot_locate(&file_desc, "vbt.bin", NULL) < 0) {
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printk(BIOS_ERR, "Could not locate a VBT file in in CBFS\n");
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return CB_ERR;
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}
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cbfs_file_data(rdev, &file_desc);
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rdev_readat(rdev, &vbtsig, 0, sizeof(uint32_t));
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if (vbtsig != VBT_SIGNATURE) {
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printk(BIOS_ERR, "Missing/invalid signature in VBT data file!\n");
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return CB_ERR;
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}
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return CB_SUCCESS;
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}
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void *vbt_get(struct region_device *rdev)
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{
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void *vbt_data;
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if (!IS_ENABLED(CONFIG_RUN_FSP_GOP))
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return NULL;
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/* Normal mode and S3 resume path PEIM GFX init is not needed.
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* Passing NULL as VBT will not make PEIM GFX to execute. */
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if (acpi_is_wakeup_s3())
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return NULL;
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if (!display_init_required())
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return NULL;
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if (locate_vbt(rdev) != CB_ERR) {
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vbt_data = rdev_mmap_full(rdev);
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return vbt_data;
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} else {
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return NULL;
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}
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}
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