arm64: dts: h3ulcb: enable SDHI0

This supports SDHI0 on H3ULCB board SD card slot

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 49 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
index adf2b0e44dac..44f1184e1a14 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts
@@ -44,6 +44,30 @@
                         gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
                 };
         };
+
+        vcc_sdhi0: regulator-vcc-sdhi0 {
+                compatible = "regulator-fixed";
+
+                regulator-name = "SDHI0 Vcc";
+                regulator-min-microvolt = <3300000>;
+                regulator-max-microvolt = <3300000>;
+
+                gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+                enable-active-high;
+        };
+
+        vccq_sdhi0: regulator-vccq-sdhi0 {
+                compatible = "regulator-gpio";
+
+                regulator-name = "SDHI0 VccQ";
+                regulator-min-microvolt = <1800000>;
+                regulator-max-microvolt = <3300000>;
+
+                gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
+                gpios-states = <1>;
+                states = <3300000 1
+                          1800000 0>;
+        };
 };
 
 &extal_clk {
@@ -78,6 +102,18 @@
                 function = "avb";
         };
 
+        sdhi0_pins_3v3: sd0_3v3 {
+                groups = "sdhi0_data4", "sdhi0_ctrl";
+                function = "sdhi0";
+                power-source = <3300>;
+        };
+
+        sdhi0_pins_1v8: sd0_1v8 {
+                groups = "sdhi0_data4", "sdhi0_ctrl";
+                function = "sdhi0";
+                power-source = <1800>;
+        };
+
         usb1_pins: usb1 {
                 groups = "usb1";
                 function = "usb1";
@@ -103,6 +139,19 @@
         status = "okay";
 };
 
+&sdhi0 {
+        pinctrl-0 = <&sdhi0_pins_3v3>;
+        pinctrl-1 = <&sdhi0_pins_1v8>;
+        pinctrl-names = "default", "state_uhs";
+
+        vmmc-supply = <&vcc_sdhi0>;
+        vqmmc-supply = <&vccq_sdhi0>;
+        cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
+        bus-width = <4>;
+        sd-uhs-sdr50;
+        status = "okay";
+};
+
 &wdt0 {
         timeout-sec = <60>;
         status = "okay";