diff --git a/arch/arm/boot/dts/amlogic/mesong12b_a.dtsi b/arch/arm/boot/dts/amlogic/mesong12b_a.dtsi
index 3b5feeef2171..69b03f6bdbd3 100644
--- a/arch/arm/boot/dts/amlogic/mesong12b_a.dtsi
+++ b/arch/arm/boot/dts/amlogic/mesong12b_a.dtsi
@@ -1406,7 +1406,7 @@
 
 	sd_emmc_c: emmc@ffe07000 {
 		status = "disabled";
-		compatible = "amlogic, meson-mmc-g12b";
+		compatible = "amlogic, meson-mmc-g12b-a";
 		reg = <0xffe07000 0x800>;
 		interrupts = <0 191 1>;
 		pinctrl-names = "emmc_clk_cmd_pins", "emmc_all_pins";
diff --git a/arch/arm64/boot/dts/amlogic/mesong12b_a.dtsi b/arch/arm64/boot/dts/amlogic/mesong12b_a.dtsi
index 7b712f3abbdc..d76692bbb909 100644
--- a/arch/arm64/boot/dts/amlogic/mesong12b_a.dtsi
+++ b/arch/arm64/boot/dts/amlogic/mesong12b_a.dtsi
@@ -1406,7 +1406,7 @@
 
 	sd_emmc_c: emmc@ffe07000 {
 		status = "disabled";
-		compatible = "amlogic, meson-mmc-g12b";
+		compatible = "amlogic, meson-mmc-g12b-a";
 		reg = <0x0 0xffe07000 0x0 0x800>;
 		interrupts = <0 191 1>;
 		pinctrl-names = "emmc_clk_cmd_pins", "emmc_all_pins";
diff --git a/drivers/amlogic/mmc/aml_sd_emmc.c b/drivers/amlogic/mmc/aml_sd_emmc.c
index 614a095c17ce..3693c2a7323c 100644
--- a/drivers/amlogic/mmc/aml_sd_emmc.c
+++ b/drivers/amlogic/mmc/aml_sd_emmc.c
@@ -3536,6 +3536,31 @@ static struct meson_mmc_data mmc_data_g12a = {
 	.sdmmc.sdr104.tx_phase = 0,
 };
 
+static struct meson_mmc_data mmc_data_g12b_a = {
+	.chip_type = MMC_CHIP_G12B_A,
+	.port_a_base = 0xffe03000,
+	.port_b_base = 0xffe05000,
+	.port_c_base = 0xffe07000,
+	.pinmux_base = 0xff634400,
+	.clksrc_base = 0xff63c000,
+	.ds_pin_poll = 0x3a,
+	.ds_pin_poll_en = 0x48,
+	.ds_pin_poll_bit = 13,
+	.sdmmc.init.core_phase = 3,
+	.sdmmc.init.tx_phase = 0,
+	.sdmmc.init.rx_phase = 0,
+	.sdmmc.calc.core_phase = 0,
+	.sdmmc.calc.tx_phase = 2,
+	.sdmmc.hs.core_phase = 1,
+	.sdmmc.ddr.core_phase = 2,
+	.sdmmc.ddr.tx_phase = 0,
+	.sdmmc.hs2.core_phase = 2,
+	.sdmmc.hs2.tx_phase = 0,
+	.sdmmc.sd_hs.core_phase = 2,
+	.sdmmc.sdr104.core_phase = 2,
+	.sdmmc.sdr104.tx_phase = 0,
+};
+
 static struct meson_mmc_data mmc_data_g12b = {
 	.chip_type = MMC_CHIP_G12B,
 	.port_a_base = 0xffe03000,
@@ -3632,6 +3657,10 @@ static const struct of_device_id meson_mmc_of_match[] = {
 		.compatible = "amlogic, meson-mmc-tl1",
 		.data = &mmc_data_tl1,
 	},
+	{
+		.compatible = "amlogic, meson-mmc-g12b-a",
+		.data = &mmc_data_g12b_a,
+	},
 
 	{}
 };
diff --git a/include/linux/amlogic/sd.h b/include/linux/amlogic/sd.h
index 9fa73a8a99bf..245866dd711c 100644
--- a/include/linux/amlogic/sd.h
+++ b/include/linux/amlogic/sd.h
@@ -188,9 +188,10 @@ enum mmc_chip_e {
 	MMC_CHIP_GXLX = 0x26,
 	MMC_CHIP_TXHD = 0x27,
 	MMC_CHIP_G12A = 0x28,
-	MMC_CHIP_G12B = 0x29,
+	MMC_CHIP_G12B_A = 0x29,
 	MMC_CHIP_GXLX2 = 0x2a,
 	MMC_CHIP_TL1 = 0X2b,
+	MMC_CHIP_G12B = 0x29b,
 };
 
 struct mmc_phase {