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-rw-r--r--src/soc/intel/common/block/include/intelblocks/rtc.h5
-rw-r--r--src/soc/intel/common/block/rtc/Makefile.inc2
-rw-r--r--src/soc/intel/common/block/rtc/rtc.c23
3 files changed, 29 insertions, 1 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/rtc.h b/src/soc/intel/common/block/include/intelblocks/rtc.h
index 1556026753..c6507c84f9 100644
--- a/src/soc/intel/common/block/include/intelblocks/rtc.h
+++ b/src/soc/intel/common/block/include/intelblocks/rtc.h
@@ -18,4 +18,9 @@
void enable_rtc_upper_bank(void);
+/* Expect return rtc failed bootlean in case of coin removal */
+int soc_get_rtc_failed(void);
+
+void rtc_init(void);
+
#endif /* SOC_INTEL_COMMON_BLOCK_RTC_H */
diff --git a/src/soc/intel/common/block/rtc/Makefile.inc b/src/soc/intel/common/block/rtc/Makefile.inc
index 2d2d4e3954..95f665919d 100644
--- a/src/soc/intel/common/block/rtc/Makefile.inc
+++ b/src/soc/intel/common/block/rtc/Makefile.inc
@@ -1 +1,3 @@
bootblock-$(CONFIG_SOC_INTEL_COMMON_BLOCK_RTC) += rtc.c
+
+ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_RTC) += rtc.c
diff --git a/src/soc/intel/common/block/rtc/rtc.c b/src/soc/intel/common/block/rtc/rtc.c
index ea9987074b..04c07687db 100644
--- a/src/soc/intel/common/block/rtc/rtc.c
+++ b/src/soc/intel/common/block/rtc/rtc.c
@@ -13,9 +13,11 @@
* GNU General Public License for more details.
*/
-#include <soc/pcr_ids.h>
#include <intelblocks/pcr.h>
#include <intelblocks/rtc.h>
+#include <soc/pcr_ids.h>
+#include <pc80/mc146818rtc.h>
+#include <vboot/vbnv.h>
/* RTC PCR configuration */
#define PCR_RTC_CONF 0x3400
@@ -29,3 +31,22 @@ void enable_rtc_upper_bank(void)
/* Enable upper 128 bytes of CMOS */
pcr_or32(PID_RTC, PCR_RTC_CONF, PCR_RTC_CONF_UCMOS_EN);
}
+
+__attribute__((weak)) int soc_get_rtc_failed(void)
+{
+ return 0;
+}
+
+void rtc_init(void)
+{
+ int rtc_failed;
+
+ rtc_failed = soc_get_rtc_failed();
+ /* Ensure the date is set including century byte. */
+ cmos_check_update_date();
+
+ if (IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS))
+ init_vbnv_cmos(rtc_failed);
+ else
+ cmos_init(rtc_failed);
+}