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[4.4.y-cip,4/5] ARM: dts: r8a7742-iwg21d-q7: Enable SDHI2 controller

Message ID 20200902075035.4445-5-biju.das.jz@bp.renesas.com
State Accepted
Delegated to: Nobuhiro Iwamatsu
Headers show
Series Add RZ/G1H MMC/SDHI support | expand

Commit Message

Biju Das Sept. 2, 2020, 7:50 a.m. UTC
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

commit b3850cd90edc0baad2ec47293f4ec3c929de6f76 upstream.

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>
[biju: removed sd-uhs-sdr50 property, since voltage switching is not supported in 4.4 kernel]
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 39 +++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index 8ce82ad3d946..82abbb758046 100644
--- 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>;
+	};
 };
 
 &avb {
@@ -48,6 +70,12 @@ 
 		groups = "scifa2_data_c";
 		function = "scifa2";
 	};
+
+	sdhi2_pins: sd2 {
+		groups = "sdhi2_data4", "sdhi2_ctrl";
+		function = "sdhi2";
+		power-source = <3300>;
+	};
 };
 
 &scifa2 {
@@ -56,3 +84,14 @@ 
 
 	status = "okay";
 };
+
+&sdhi2 {
+	pinctrl-0 = <&sdhi2_pins>;
+	pinctrl-names = "default";
+
+	vmmc-supply = <&vcc_sdhi2>;
+	vqmmc-supply = <&vccq_sdhi2>;
+	cd-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+};