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-rw-r--r--src/soc/mediatek/mt8186/include/soc/rtc.h1
-rw-r--r--src/soc/mediatek/mt8186/rtc.c14
2 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8186/include/soc/rtc.h b/src/soc/mediatek/mt8186/include/soc/rtc.h
index 3a0c7cd100..a3fb7a099f 100644
--- a/src/soc/mediatek/mt8186/include/soc/rtc.h
+++ b/src/soc/mediatek/mt8186/include/soc/rtc.h
@@ -143,6 +143,7 @@ enum {
PMIC_RG_DCXO_CW00 = 0x0788,
PMIC_RG_DCXO_CW00_CLR = 0x078C,
PMIC_RG_DCXO_CW02 = 0x0790,
+ PMIC_RG_DCXO_CW03 = 0x0794,
PMIC_RG_DCXO_CW07 = 0x079A,
PMIC_RG_DCXO_CW09 = 0x079E,
PMIC_RG_DCXO_CW11 = 0x07A2,
diff --git a/src/soc/mediatek/mt8186/rtc.c b/src/soc/mediatek/mt8186/rtc.c
index 528f42b3ff..2f78be8fa6 100644
--- a/src/soc/mediatek/mt8186/rtc.c
+++ b/src/soc/mediatek/mt8186/rtc.c
@@ -13,6 +13,8 @@
#include <soc/pmic_wrap.h>
#include <timer.h>
+#define MT8186_RTC_DXCO_CAPID 0xC0
+
/* Initialize RTC setting of using DCXO clock */
static bool rtc_enable_dcxo(void)
{
@@ -231,6 +233,16 @@ static void mt6366_dcxo_disable_unused(void)
rtc_write(PMIC_RG_DCXO_CW23, 0x0052);
}
+static void rtc_set_capid(u16 capid)
+{
+ u16 read_capid;
+
+ rtc_write(PMIC_RG_DCXO_CW03, 0xFF00 | capid);
+
+ rtc_read(PMIC_RG_DCXO_CW03, &read_capid);
+ rtc_info("read back capid: %#x\n", read_capid & 0xFF);
+}
+
/* Check RTC Initialization */
int rtc_init(int recover)
{
@@ -337,6 +349,8 @@ static void dcxo_init(void)
rtc_write(PMIC_RG_DCXO_CW09, 0x408F);
mdelay(5);
+ rtc_set_capid(MT8186_RTC_DXCO_CAPID);
+
mt6366_dcxo_disable_unused();
}