diff --git a/src/soc/mediatek/mt8186/mt6366.c b/src/soc/mediatek/mt8186/mt6366.c
index 90ff3287d4..b993a9256a 100644
--- a/src/soc/mediatek/mt8186/mt6366.c
+++ b/src/soc/mediatek/mt8186/mt6366.c
@@ -167,6 +167,10 @@ static struct pmic_setting init_setting[] = {
 	{0x1BCC, 0x70F, 0x7F7F, 0},
 	{0x1C9E, 0x38, 0x7F, 0},
 	{0x1CA0, 0x70F, 0x7F7F, 0},
+	/* VSRAM_CORE: set SW mode */
+	{0x1CA4, 0x1, 0xFFFF, 0},
+	/* VSRAM_CORE: SW set OFF */
+	{0x1C9C, 0x0, 0xFFFF, 0},
 	{0x1EA2, 0x1B, 0x1F, 0},
 	{0x1EA4, 0xC00, 0x1C00, 0},
 	{0x1EA6, 0xC00, 0x1C00, 0},