dev: pmic: pm8x41 : Add api to get boot type
We now have the ability to detect if the current boot is a cold or
a warm boot.
Change-Id: Iac7ae00352a7886e14076fa5bc56e1ad1fcd006d
diff --git a/dev/pmic/pm8x41/include/pm8x41.h b/dev/pmic/pm8x41/include/pm8x41.h
index f934aa0..074cbf2 100644
--- a/dev/pmic/pm8x41/include/pm8x41.h
+++ b/dev/pmic/pm8x41/include/pm8x41.h
@@ -194,5 +194,6 @@
uint8_t pm8x41_get_pon_reason();
void pm8x41_config_output_mpp(struct pm8x41_mpp *mpp);
void pm8x41_enable_mpp(struct pm8x41_mpp *mpp, enum mpp_en_ctl enable);
+uint8_t pm8x41_get_is_cold_boot();
#endif
diff --git a/dev/pmic/pm8x41/include/pm8x41_hw.h b/dev/pmic/pm8x41/include/pm8x41_hw.h
index 8a275ad..9c10ab8 100644
--- a/dev/pmic/pm8x41/include/pm8x41_hw.h
+++ b/dev/pmic/pm8x41/include/pm8x41_hw.h
@@ -57,6 +57,8 @@
/* PON Peripheral registers */
#define PON_PON_REASON1 0x808
+#define PON_WARMBOOT_STATUS1 0x80A
+#define PON_WARMBOOT_STATUS2 0x80B
#define PON_INT_RT_STS 0x810
#define PON_INT_SET_TYPE 0x811
#define PON_INT_POLARITY_HIGH 0x812
diff --git a/dev/pmic/pm8x41/pm8x41.c b/dev/pmic/pm8x41/pm8x41.c
index 93b5e57..b9e147b 100644
--- a/dev/pmic/pm8x41/pm8x41.c
+++ b/dev/pmic/pm8x41/pm8x41.c
@@ -372,3 +372,13 @@
REG_WRITE(mpp->base + MPP_MODE_CTL, mpp->mode | (MPP_DIGITAL_OUTPUT << MPP_MODE_CTL_MODE_SHIFT));
}
+
+uint8_t pm8x41_get_is_cold_boot()
+{
+ if (REG_READ(PON_WARMBOOT_STATUS1) || REG_READ(PON_WARMBOOT_STATUS2)) {
+ dprintf(INFO,"%s: Warm boot\n", __func__);
+ return 0;
+ }
+ dprintf(INFO,"%s: cold boot\n", __func__);
+ return 1;
+}