[XS] Change in coreboot[main]: mb/google/rauru: Enable RTC

[Yidi Lin (Code Review)]

Yidi Lin has submitted this change. ( https://review.coreboot.org/c/coreboot/+/85979?usp=email )

Change subject: mb/google/rauru: Enable RTC
......................................................................

mb/google/rauru: Enable RTC

Enable RTC so that we can see the correct timestamp and date in
ChromeOS.

rauru-rev0 ~ # tail /var/log/eventtlog.txt
suspend_stress_test -c 5 --suspend_max=30 --suspend_min=30

rauru-rev0 ~ # date
Thu Nov  7 14:54:09 CST 2024

TEST=Build pass, check date in ChromeOS
BUG=b:355550460

Change-Id: I95822fc7646d41dbbc61258741a2a42988fc31d7
Signed-off-by: Jarried Lin 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85979
Tested-by: build bot (Jenkins) 
Reviewed-by: Yidi Lin 
Reviewed-by: Yu-Ping Wu 
---
M src/mainboard/google/rauru/Kconfig
M src/mainboard/google/rauru/romstage.c
2 files changed, 4 insertions(+), 0 deletions(-)

Approvals:
  Yu-Ping Wu: Looks good to me, approved
  Yidi Lin: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/src/mainboard/google/rauru/Kconfig b/src/mainboard/google/rauru/Kconfig
index ae3ffb3..06d8546 100644
--- a/src/mainboard/google/rauru/Kconfig
+++ b/src/mainboard/google/rauru/Kconfig
@@ -37,6 +37,7 @@
    select COMMONLIB_STORAGE_MMC
    select FW_CONFIG
    select FW_CONFIG_SOURCE_CHROMEEC_CBI
+	select RTC

config MAINBOARD_DIR
    string
diff --git a/src/mainboard/google/rauru/romstage.c b/src/mainboard/google/rauru/romstage.c
index 69286b9..7860dfd 100644
--- a/src/mainboard/google/rauru/romstage.c
+++ b/src/mainboard/google/rauru/romstage.c
@@ -11,6 +11,7 @@
 #include <soc/mt6363.h>
 #include <soc/mt6373.h>
 #include <soc/mt6685.h>
+#include <soc/mt6685_rtc.h>
 #include <soc/mtk_fsp.h>
 #include <soc/pcie.h>
 #include <soc/pll.h>
@@ -44,6 +45,8 @@
    dvfsrc_opp_level_mapping();
    srclken_rc_init();
    clk_buf_init();
+	if (CONFIG(RTC))
+		rtc_boot();
    mtk_dram_init();
    modem_power_down();
    dvfs_init();