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t132: prepare for ramstage vboot verification

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Implement the necesary logic for running vboot
verification on ramstage. The logic just handles
the fallback path of loading from cbfs.

BUG=chrome-os-partner:30784
BRANCH=None
TEST=Built for rush.

Change-Id: I7b4fa0438efbdb0af7420e1a8b87f4fa4a86c0ee
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/209571
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Aaron Durbin 2014-07-23 16:17:50 -05:00 • committed by chrome-internal-fetch
commit d7dfe4c2c2
1 changed files with 26 additions and 2 deletions
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28
src/soc/nvidia/tegra132/romstage.c
View file

@ -22,6 +22,7 @@
#include <cbmem.h>
#include <console/console.h>
#include <arch/exception.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include <soc/addressmap.h>
#include <soc/sdram_configs.h>
@ -31,6 +32,25 @@
#include <soc/clock.h>
void romstage(void);
static void *load_ramstage(void)
{
void *entry;
/*
* This platform does not need to cache a loaded ramstage nor do we
* go down this path on resume. Therefore, no romstage_handoff is
* required.
*/
entry = vboot_verify_firmware_get_entry(NULL);
if (entry == NULL)
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA,
CONFIG_CBFS_PREFIX "/ramstage");
return entry;
}
void romstage(void)
{
void *entry;
@ -65,8 +85,12 @@ void romstage(void)
ccplex_load_mts();
printk(BIOS_INFO, "T132 romstage: MTS loading done\n");
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA,
CONFIG_CBFS_PREFIX "/ramstage");
entry = load_ramstage();
if (entry == NULL) {
printk(BIOS_INFO, "T132 romstage: error loading ramstage\n");
clock_halt_avp();
}
cbmemc_reinit();