diff options
| -rw-r--r-- | src/ec/google/chromeec/Kconfig | 7 | ||||
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 21 |
2 files changed, 28 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/Kconfig b/src/ec/google/chromeec/Kconfig index 2e4affc975..0e1b4f244c 100644 --- a/src/ec/google/chromeec/Kconfig +++ b/src/ec/google/chromeec/Kconfig @@ -98,3 +98,10 @@ config EC_GOOGLE_CHROMEEC_PD_BOARDNAME The board name used in the Chrome EC code base to build the PD firmware. If set, the coreboot build with also build the EC firmware and add it to the image. + +config EC_GOOGLE_CHROMEEC_RTC + depends on EC_GOOGLE_CHROMEEC + bool "Enable Chrome OS EC RTC" + help + Enable support for the real-time clock on the Chrome OS EC. This + uses the EC_CMD_RTC_GET_VALUE command to read the current time. diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index 87ab13acec..1a381d716e 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -22,6 +22,7 @@ #include <halt.h> #include <reset.h> #include <elog.h> +#include <rtc.h> #include <stdlib.h> #include "chip.h" @@ -142,6 +143,26 @@ int google_chromeec_check_feature(int feature) return r.flags[feature / 32] & EC_FEATURE_MASK_0(feature); } +#if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC_RTC) +int rtc_get(struct rtc_time *time) +{ + struct chromeec_command cmd; + struct ec_response_rtc r; + + cmd.cmd_code = EC_CMD_RTC_GET_VALUE; + cmd.cmd_version = 0; + cmd.cmd_size_in = 0; + cmd.cmd_data_out = &r; + cmd.cmd_size_out = sizeof(r); + cmd.cmd_dev_index = 0; + + if (google_chromeec_command(&cmd) != 0) + return -1; + + return rtc_to_tm(r.time, time); +} +#endif + #ifndef __SMM__ #ifdef __PRE_RAM__ void google_chromeec_check_ec_image(int expected_type) |