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authorAndrey Petrov <andrey.petrov@intel.com>2016-05-13 15:27:42 -0700
committerAaron Durbin <adurbin@chromium.org>2016-05-18 07:02:43 +0200
commit060b215fa7b7f9aae04e90be9eeed14e6f1974bf (patch)
treee7990823c40e39afee031962d8c131f0e9f10ef2 /src
parent493ec92eb3c379c127754dd2459563c21d9d6ed9 (diff)
downloadcoreboot-060b215fa7b7f9aae04e90be9eeed14e6f1974bf.tar.xz
soc/intel/common: Add utility to load VBT file
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>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/common/Kconfig13
-rw-r--r--src/soc/intel/common/Makefile.inc5
-rw-r--r--src/soc/intel/common/vbt.c42
-rw-r--r--src/soc/intel/common/vbt.h24
4 files changed, 84 insertions, 0 deletions
diff --git a/src/soc/intel/common/Kconfig b/src/soc/intel/common/Kconfig
index 8b68aad46c..c9ffc93d28 100644
--- a/src/soc/intel/common/Kconfig
+++ b/src/soc/intel/common/Kconfig
@@ -59,4 +59,17 @@ config MMA_BLOBS_PATH
depends on MMA
default "3rdparty/blobs/mainboard/$(MAINBOARDDIR)/mma"
+config ADD_VBT_DATA_FILE
+ bool "Add a Video Bios Table (VBT) binary to CBFS"
+ help
+ Add a VBT file data file to CBFS. The VBT describes the integrated
+ GPU and connections, and is needed by FSP in order to initialize the
+ display.
+
+config VBT_FILE
+ string "VBT binary path and filename"
+ depends on ADD_VBT_DATA_FILE
+ help
+ The path and filename of the VBT binary.
+
endif # SOC_INTEL_COMMON
diff --git a/src/soc/intel/common/Makefile.inc b/src/soc/intel/common/Makefile.inc
index a7218b71db..8dfd4c0b76 100644
--- a/src/soc/intel/common/Makefile.inc
+++ b/src/soc/intel/common/Makefile.inc
@@ -14,6 +14,7 @@ ramstage-$(CONFIG_SOC_INTEL_COMMON_RESET) += reset.c
ramstage-y += util.c
ramstage-$(CONFIG_MMA) += mma.c
ramstage-$(CONFIG_SOC_INTEL_COMMON_ACPI_WAKE_SOURCE) += acpi_wake_source.c
+ramstage-y += vbt.c
# Create and add the MRC cache to the cbfs image
ifneq ($(CONFIG_CHROMEOS),y)
@@ -71,4 +72,8 @@ $(foreach mma_test, $(MMA_TEST_CONFIG_NAMES),\
endif
+cbfs-files-$(CONFIG_ADD_VBT_DATA_FILE) += vbt.bin
+vbt.bin-file := $(call strip_quotes,$(CONFIG_VBT_FILE))
+vbt.bin-type := raw
+
endif
diff --git a/src/soc/intel/common/vbt.c b/src/soc/intel/common/vbt.c
new file mode 100644
index 0000000000..80b17a2f87
--- /dev/null
+++ b/src/soc/intel/common/vbt.c
@@ -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;
+}
diff --git a/src/soc/intel/common/vbt.h b/src/soc/intel/common/vbt.h
new file mode 100644
index 0000000000..e1a45cc887
--- /dev/null
+++ b/src/soc/intel/common/vbt.h
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+#ifndef _INTEL_COMMON_VBT_H_
+#define _INTEL_COMMON_VBT_H_
+
+#include <commonlib/region.h>
+#include <types.h>
+
+/* locate .vbt file */
+enum cb_err locate_vbt(struct region_device *rdev);
+#endif