netdev - [PATCH 06/11] arm64: dts: renesas: r8a774c0-cat874: Add uSD support

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Date:   Wed, 16 Jan 2019 18:37:49 +0000
From:   Fabrizio Castro <fabrizio.castro@...renesas.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Biju Das <biju.das@...renesas.com>,
        Simon Horman <horms@...ge.net.au>,
        Magnus Damm <magnus.damm@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Thierry Reding <treding@...dia.com>,
        Andreas Färber <afaerber@...e.de>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Kevin Hilman <khilman@...libre.com>,
        Johan Hovold <johan@...nel.org>,
        Lukasz Majewski <lukma@...x.de>,
        Michal Simek <monstr@...str.eu>,
        Michal Vokáč <michal.vokac@...ft.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Ben Whitten <ben.whitten@...il.com>,
        Fabrizio Castro <fabrizio.castro@...renesas.com>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-clk@...r.kernel.org, ebiharaml@...linux.co.jp
Subject: [PATCH 06/11] arm64: dts: renesas: r8a774c0-cat874: Add uSD support

From: Biju Das <biju.das@...renesas.com>

This patch adds uSD card support.

Signed-off-by: Biju Das <biju.das@...renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@...renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@...esas.com>
---
 arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts | 50 +++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
index c545ce5..477a56b 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
+++ b/arch/arm64/boot/dts/renesas/r8a774c0-cat874.dts
@@ -7,6 +7,7 @@
 
 /dts-v1/;
 #include "r8a774c0.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Silicon Linux RZ/G2E 96board platform (CAT874)";
@@ -26,6 +27,29 @@
 		/* first 128MB is reserved for secure area. */
 		reg = <0x0 0x48000000 0x0 0x78000000>;
 	};
+
+	vcc_sdhi0: regulator-vcc-sdhi0 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI0 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vccq_sdhi0: regulator-vccq-sdhi0 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI0 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
+		gpios-states = <1>;
+		states = <3300000 1
+			  1800000 0>;
+	};
 };
 
 &extal_clk {
@@ -37,6 +61,18 @@
 		groups = "scif2_data_a";
 		function = "scif2";
 	};
+
+	sdhi0_pins: sd0 {
+		groups = "sdhi0_data4", "sdhi0_ctrl";
+		function = "sdhi0";
+		power-source = <3300>;
+	};
+
+	sdhi0_pins_uhs: sd0_uhs {
+		groups = "sdhi0_data4", "sdhi0_ctrl";
+		function = "sdhi0";
+		power-source = <1800>;
+	};
 };
 
 &scif2 {
@@ -45,3 +81,17 @@
 
 	status = "okay";
 };
+
+&sdhi0 {
+	pinctrl-0 = <&sdhi0_pins>;
+	pinctrl-1 = <&sdhi0_pins_uhs>;
+	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;
+	sd-uhs-sdr104;
+	status = "okay";
+};
-- 
2.7.4