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

soc/intel/common: Add suppport for Extended VBT

Browse Source 
With addition of new features in VBT its size got increased
more than 6k and was unable to pass using mailbox 4 hence pass
using mailbox 3 to kernel.

BRANCH=none
BUG=chrome-os-partner:60026
TEST=firmware screen and Chrome OS screen should come up.

Change-Id: I359cf9bc402881161c9623cada689496716e04a5
Signed-off-by: Abhay Kumar <abhay.kumar@intel.com>
Reviewed-on: https://review.coreboot.org/17585
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Abhay Kumar
2016-11-23 10:56:48 -08:00
committed by Aaron Durbin
parent 35d7d586cd
commit b1feb5189b
3 changed files with 129 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/soc/intel/common/opregion.c
View File

@@ -15,6 +15,7 @@
#include <console/console.h>
#include <string.h>
#include <cbmem.h>
#include "gma.h"
#include "opregion.h"
@@ -24,6 +25,7 @@ int init_igd_opregion(igd_opregion_t *opregion)
{
struct region_device vbt_rdev;
optionrom_vbt_t *vbt;
optionrom_vbt_t *ext_vbt;
if (locate_vbt(&vbt_rdev) == CB_ERR) {
printk(BIOS_ERR, "VBT not found\n");
@@ -43,8 +45,22 @@ int init_igd_opregion(igd_opregion_t *opregion)
sizeof(opregion->header.signature));
memcpy(opregion->header.vbios_version, vbt->coreblock_biosbuild,
ARRAY_SIZE(vbt->coreblock_biosbuild));
memcpy(opregion->vbt.gvd1, vbt, MIN(vbt->hdr_vbt_size,
sizeof(opregion->vbt.gvd1)));
/* Extended VBT support */
if (vbt->hdr_vbt_size > sizeof(opregion->vbt.gvd1)) {
ext_vbt = cbmem_add(CBMEM_ID_EXT_VBT, vbt->hdr_vbt_size);
if (ext_vbt == NULL) {
printk(BIOS_ERR, "Unable to add Ext VBT to cbmem!\n");
return 0;
}
memcpy(ext_vbt, vbt, vbt->hdr_vbt_size);
opregion->mailbox3.rvda = (uintptr_t)ext_vbt;
opregion->mailbox3.rvds = vbt->hdr_vbt_size;
} else {
/* Raw VBT size which can fit in gvd1 */
memcpy(opregion->vbt.gvd1, vbt, vbt->hdr_vbt_size);
}
/* 8KiB */
opregion->header.size = sizeof(igd_opregion_t) / KiB;