sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

soc/intel/common: Add utility to load VBT file

Browse Source 
Change-Id: I8d3d47ca2fc1fc4c10e61c04b941b6378b9c0f80
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/14815
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Andrey Petrov
2016-05-13 15:27:42 -07:00
committed by Aaron Durbin
parent 493ec92eb3
commit 060b215fa7
4 changed files with 84 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
src/soc/intel/common/vbt.c Normal file
View File

@ -0,0 +1,42 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <cbfs.h>
#include <console/console.h>
#include "vbt.h"
#define VBT_SIGNATURE 0x54425624
enum cb_err locate_vbt(struct region_device *rdev)
{
uint32_t vbtsig = 0;
struct cbfsf file_desc;
if (cbfs_boot_locate(&file_desc, "vbt.bin", NULL) < 0) {
printk(BIOS_ERR, "Could not locate a VBT file in in CBFS\n");
return CB_ERR;
}
cbfs_file_data(rdev, &file_desc);
rdev_readat(rdev, &vbtsig, 0, sizeof(uint32_t));
if (vbtsig != VBT_SIGNATURE) {
printk(BIOS_ERR, "Missing/invalid signature in VBT data file!\n");
return CB_ERR;
}
return CB_SUCCESS;
}