arm64: dts: m3ulcb: enable SDHI2

This supports SDHI2 for M3ULCB onboard eMMC

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
index d209e5480ff6a1239cca07b145f7c8813c9d51d2..c3f064ac2cb44971b2b91bae39faec4124fe3528 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
@@ -55,6 +55,24 @@ key-1 {
                };
        };
 
+       reg_1p8v: regulator0 {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-1.8V";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
+       reg_3p3v: regulator1 {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-3.3V";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
        vcc_sdhi0: regulator-vcc-sdhi0 {
                compatible = "regulator-fixed";
 
@@ -113,6 +131,18 @@ sdhi0_pins_uhs: sd0_uhs {
                function = "sdhi0";
                power-source = <1800>;
        };
+
+       sdhi2_pins: sd2 {
+               groups = "sdhi2_data8", "sdhi2_ctrl";
+               function = "sdhi2";
+               power-source = <3300>;
+       };
+
+       sdhi2_pins_uhs: sd2_uhs {
+               groups = "sdhi2_data8", "sdhi2_ctrl";
+               function = "sdhi2";
+               power-source = <1800>;
+       };
 };
 
 &sdhi0 {
@@ -128,6 +158,19 @@ &sdhi0 {
        status = "okay";
 };
 
+&sdhi2 {
+       /* used for on-board 8bit eMMC */
+       pinctrl-0 = <&sdhi2_pins>;
+       pinctrl-1 = <&sdhi2_pins_uhs>;
+       pinctrl-names = "default", "state_uhs";
+
+       vmmc-supply = <&reg_3p3v>;
+       vqmmc-supply = <&reg_1p8v>;
+       bus-width = <8>;
+       non-removable;
+       status = "okay";
+};
+
 &scif2 {
        pinctrl-0 = <&scif2_pins>;
        pinctrl-names = "default";