[PATCH 3/3] arm64: dts: st: enable eMMC on stm32mp257f-dk

[Mateusz Nowicki]

Enable the 8-Gbyte eMMC v5.1 connected to SDMMC2 with an 8-bit bus.
Faster 1.8V modes are not enabled as they could not be tested yet.

Signed-off-by: Mateusz Nowicki <mateusz.nowicki at posteo.net>
---
 arch/arm64/boot/dts/st/stm32mp257f-dk.dts | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
index 8daf3dfd5133..8c6aabac367e 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
@@ -21,6 +21,8 @@ / {
 	aliases {
 		ethernet0 = &ethernet1;
 		serial0 = &usart2;
+		mmc0 = &sdmmc1;
+		mmc1 = &sdmmc2;
 	};
 
 	chosen {
@@ -231,6 +233,10 @@ scmi_vddio1: regulator at 0 {
 		regulator-min-microvolt = <1800000>;
 		regulator-max-microvolt = <3300000>;
 	};
+	scmi_vddio2: regulator at 1 {
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+	};
 	scmi_vddcore: regulator at 11 {
 		reg = <VOLTD_SCMI_STPMIC2_BUCK2>;
 		regulator-name = "vddcore";
@@ -279,6 +285,21 @@ &sdmmc1 {
 	status = "okay";
 };
 
+&sdmmc2 {
+	pinctrl-names = "default", "opendrain", "sleep";
+	pinctrl-0 = <&sdmmc2_b8_pins_a>;
+	pinctrl-1 = <&sdmmc2_b8_od_pins_a>;
+	pinctrl-2 = <&sdmmc2_b8_sleep_pins_a>;
+	non-removable;
+	no-sd;
+	no-sdio;
+	st,neg-edge;
+	bus-width = <8>;
+	status = "okay";
+	vmmc-supply = <&scmi_vdd_emmc>;
+	vqmmc-supply = <&scmi_vddio2>;
+};
+
 &usart2 {
 	pinctrl-names = "default", "idle", "sleep";
 	pinctrl-0 = <&usart2_pins_a>;
-- 
2.55.0