diff --git a/src/mainboard/google/reef/mainboard.c b/src/mainboard/google/reef/mainboard.c
index 90ffe136d3..7f5a1b3857 100644
--- a/src/mainboard/google/reef/mainboard.c
+++ b/src/mainboard/google/reef/mainboard.c
@@ -29,6 +29,14 @@
 #include <variant/ec.h>
 #include <variant/gpio.h>
 
+/* override specific gpio by sku id */
+const struct pad_config __attribute__((weak))
+*variant_sku_gpio_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}
+
 static void mainboard_init(void *chip_info)
 {
 	int boardid;
@@ -41,6 +49,9 @@ static void mainboard_init(void *chip_info)
 	pads = variant_gpio_table(&num);
 	gpio_configure_pads(pads, num);
 
+	pads = variant_sku_gpio_table(&num);
+	gpio_configure_pads(pads, num);
+
 	mainboard_ec_init();
 
 	variant_board_ec_set_skuid();
diff --git a/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
index 0f2c37653f..8611ecd4f3 100644
--- a/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/reef/variants/baseboard/include/baseboard/variants.h
@@ -29,6 +29,7 @@ uint8_t sku_strapping_value(void);
 const struct pad_config *variant_gpio_table(size_t *num);
 const struct pad_config *variant_early_gpio_table(size_t *num);
 const struct pad_config *variant_sleep_gpio_table(u8 slp_typ, size_t *num);
+const struct pad_config *variant_sku_gpio_table(size_t *num);
 
 /* Baseboard default swizzle. Can be reused if swizzle is same. */
 extern const struct lpddr4_swizzle_cfg baseboard_lpddr4_swizzle;
diff --git a/src/mainboard/google/reef/variants/coral/mainboard.c b/src/mainboard/google/reef/variants/coral/mainboard.c
index 5daf96cabd..a45afc7070 100644
--- a/src/mainboard/google/reef/variants/coral/mainboard.c
+++ b/src/mainboard/google/reef/variants/coral/mainboard.c
@@ -19,6 +19,7 @@
 #include <soc/cpu.h>
 #include <soc/intel/apollolake/chip.h>
 #include <soc/intel/common/vbt.h>
+#include <soc/gpio.h>
 
 enum {
 	SKU_0_ASTRONAUT = 0,
@@ -122,3 +123,34 @@ const char *mainboard_vbt_filename(void)
 		break;
 	}
 }
+
+static const struct pad_config nasher_gpio_tables[] = {
+	/* AVS_DMIC_CLK_A1 */
+	PAD_CFG_NF_IOSSTATE(GPIO_79, NATIVE, DEEP, NF1, Tx1RXDCRx0),
+	/* AVS_DMIC_CLK_B1 */
+	PAD_CFG_NF_IOSSTATE(GPIO_80, NATIVE, DEEP, NF1, Tx1RXDCRx0),
+};
+
+const struct pad_config *variant_sku_gpio_table(size_t *num)
+{
+	int sku_id = variant_board_sku();
+	const struct pad_config *board_gpio_tables;
+
+	switch (sku_id) {
+	case SKU_160_NASHER:
+	case SKU_161_NASHER:
+	case SKU_162_NASHER:
+	case SKU_163_NASHER360:
+	case SKU_164_NASHER360:
+	case SKU_165_NASHER360:
+	case SKU_166_NASHER360:
+		*num = ARRAY_SIZE(nasher_gpio_tables);
+		board_gpio_tables = nasher_gpio_tables;
+		break;
+	default:
+		*num = 0;
+		board_gpio_tables = NULL;
+		break;
+	}
+	return board_gpio_tables;
+}