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-rw-r--r--src/vendorcode/google/chromeos/vbnv.h1
-rw-r--r--src/vendorcode/google/chromeos/vbnv_cmos.c13
2 files changed, 14 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/vbnv.h b/src/vendorcode/google/chromeos/vbnv.h
index 3d88507a85..5d21cc8481 100644
--- a/src/vendorcode/google/chromeos/vbnv.h
+++ b/src/vendorcode/google/chromeos/vbnv.h
@@ -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);
diff --git a/src/vendorcode/google/chromeos/vbnv_cmos.c b/src/vendorcode/google/chromeos/vbnv_cmos.c
index 6dfc74cc09..da0d3005fd 100644
--- a/src/vendorcode/google/chromeos/vbnv_cmos.c
+++ b/src/vendorcode/google/chromeos/vbnv_cmos.c
@@ -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)
{