ARM: dts: r8a7742-iwg21d-q7: Enable SDHI2 controller

Enable the SDHI2 controller on iWave RZ/G1H carrier board.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1590420129-7531-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index e154e3a..bb1deb0 100644 (file)
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -21,6 +21,28 @@
                bootargs = "ignore_loglevel root=/dev/mmcblk0p1 rw rootwait";
                stdout-path = "serial2:115200n8";
        };
+
+       vcc_sdhi2: regulator-vcc-sdhi2 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "SDHI2 Vcc";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&gpio1 27 GPIO_ACTIVE_LOW>;
+       };
+
+       vccq_sdhi2: regulator-vccq-sdhi2 {
+               compatible = "regulator-gpio";
+
+               regulator-name = "SDHI2 VccQ";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+               gpios-states = <1>;
+               states = <3300000 1>, <1800000 0>;
+       };
 };
 
 &pfc {
@@ -33,6 +55,18 @@
                groups = "scifb2_data", "scifb2_ctrl";
                function = "scifb2";
        };
+
+       sdhi2_pins: sd2 {
+               groups = "sdhi2_data4", "sdhi2_ctrl";
+               function = "sdhi2";
+               power-source = <3300>;
+       };
+
+       sdhi2_pins_uhs: sd2_uhs {
+               groups = "sdhi2_data4", "sdhi2_ctrl";
+               function = "sdhi2";
+               power-source = <1800>;
+       };
 };
 
 &scifa2 {
@@ -49,3 +83,16 @@
        uart-has-rtscts;
        status = "okay";
 };
+
+&sdhi2 {
+       pinctrl-0 = <&sdhi2_pins>;
+       pinctrl-1 = <&sdhi2_pins_uhs>;
+       pinctrl-names = "default", "state_uhs";
+
+       vmmc-supply = <&vcc_sdhi2>;
+       vqmmc-supply = <&vccq_sdhi2>;
+       cd-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;
+       wp-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+       sd-uhs-sdr50;
+       status = "okay";
+};