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UPSTREAM: vendorcode/chromeos/vbnv: Add CMOS init function

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Add cmos init helper function.
This function saves the Vboot NV data, calls cmos init
and restores the Vboot NV data.

BUG=None
BRANCH=None
TEST=None

Change-Id: I8475f23d849fb5b5a2d16738b4d5e99f112883da
Original-Signed-off-by: Jagadish Krishnamoorthy <jagadish.krishnamoorthy@intel.com>
Original-Reviewed-on: https://review.coreboot.org/14898
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/347164
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Jagadish Krishnamoorthy 2016-05-18 15:18:58 -07:00 • committed by chrome-bot
commit 8610557368
2 changed files with 14 additions and 0 deletions
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1
src/vendorcode/google/chromeos/vbnv.h
View file

@ -29,6 +29,7 @@ int vboot_wants_oprom(void);
/* CMOS backend */
void read_vbnv_cmos(uint8_t *vbnv_copy);
void save_vbnv_cmos(const uint8_t *vbnv_copy);
void init_vbnv_cmos(int rtc_fail);
/* Flash backend */
void read_vbnv_flash(uint8_t *vbnv_copy);

13
src/vendorcode/google/chromeos/vbnv_cmos.c
View file

@ -51,6 +51,19 @@ void save_vbnv_cmos(const uint8_t *vbnv_copy)
cmos_write(vbnv_copy[i], CONFIG_VBNV_OFFSET + 14 + i);
}
void init_vbnv_cmos(int rtc_fail)
{
uint8_t vbnv[VBNV_BLOCK_SIZE];
if (rtc_fail)
read_vbnv_cmos(vbnv);
cmos_init(rtc_fail);
if (rtc_fail)
save_vbnv_cmos(vbnv);
}
#if IS_ENABLED(CONFIG_CHROMEOS_VBNV_CMOS_BACKUP_TO_FLASH)
static void back_up_vbnv_cmos(void *unused)
{