diff options
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/rtc.h | 2 | ||||
| -rw-r--r-- | src/soc/intel/common/block/rtc/rtc.c | 10 |
2 files changed, 10 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/rtc.h b/src/soc/intel/common/block/include/intelblocks/rtc.h index 56cfb2ea8c..0faf0b0ef0 100644 --- a/src/soc/intel/common/block/include/intelblocks/rtc.h +++ b/src/soc/intel/common/block/include/intelblocks/rtc.h @@ -45,4 +45,6 @@ void configure_rtc_buc_top_swap(enum ts_config ts_state); */ enum ts_config get_rtc_buc_top_swap_status(void); +/* Set RTC Configuration BILD bit. */ +void rtc_conf_set_bios_interface_lockdown(void); #endif /* SOC_INTEL_COMMON_BLOCK_RTC_H */ diff --git a/src/soc/intel/common/block/rtc/rtc.c b/src/soc/intel/common/block/rtc/rtc.c index b8c8849d10..bfa11bd177 100644 --- a/src/soc/intel/common/block/rtc/rtc.c +++ b/src/soc/intel/common/block/rtc/rtc.c @@ -24,10 +24,10 @@ #define PCR_RTC_CONF_UCMOS_EN (1 << 2) #define PCR_RTC_CONF_LCMOS_LOCK (1 << 3) #define PCR_RTC_CONF_UCMOS_LOCK (1 << 4) -#define PCR_RTC_CONF_RESERVED (1 << 31) +#define PCR_RTC_CONF_BILD (1 << 31) /* RTC backed up control register */ #define PCR_RTC_BUC 0x3414 -#define PCR_RTC_BUC_TOP_SWAP (1 << 0) +#define PCR_RTC_BUC_TOP_SWAP (1 << 0) void enable_rtc_upper_bank(void) { @@ -48,6 +48,12 @@ void rtc_init(void) cmos_init(soc_get_rtc_failed()); } +void rtc_conf_set_bios_interface_lockdown(void) +{ + pcr_rmw32(PID_RTC, PCR_RTC_CONF, ~PCR_RTC_CONF_BILD, + PCR_RTC_CONF_BILD); +} + #if IS_ENABLED(CONFIG_INTEL_HAS_TOP_SWAP) void configure_rtc_buc_top_swap(enum ts_config ts_state) { |