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From:   Amit Singh Tomar <amittomer25@gmail.com>
To:     andre.przywara@arm.com, afaerber@suse.de,
        manivannan.sadhasivam@linaro.org, robh+dt@kernel.org
Cc:     cristian.ciocaltea@gmail.com, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-actions@lists.infradead.org, devicetree@vger.kernel.org
Subject: [PATCH v6 10/10] arm64: dts: actions: Add uSD support for Cubieboard7
Date:   Sat, 18 Jul 2020 14:49:34 +0530
Message-Id: <1595063974-24228-11-git-send-email-amittomer25@gmail.com>
In-Reply-To: <1595063974-24228-1-git-send-email-amittomer25@gmail.com>
References: <1595063974-24228-1-git-send-email-amittomer25@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This commit adds uSD support for Cubieboard7 board based on Actions Semi
S700 SoC. SD0 is connected to uSD slot. Since there is no PMIC support
added yet, fixed regulator has been used as a regulator node.

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
---
Changes since v5:
	* Removed the Fixed regulators as these are 
	  not needed.
Changes since v4:
        * No change.
Changes since v3:
        * No change.
Changes since v2:
        * No change.
Changes since v1:
        * No change.
Changes since RFC:
        * No change.
---
 arch/arm64/boot/dts/actions/s700-cubieboard7.dts | 22 ++++++++++++++++++++++
 arch/arm64/boot/dts/actions/s700.dtsi            |  1 +
 2 files changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts
index 63e375cd9eb4..eaaf8f876203 100644
--- a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts
+++ b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts
@@ -13,6 +13,7 @@
 
 	aliases {
 		serial3 = &uart3;
+		mmc0 = &mmc0;
 	};
 
 	chosen {
@@ -81,6 +82,14 @@
 			bias-pull-up;
 		};
 	};
+
+	mmc0_default: mmc0_default {
+		pinmux {
+			groups = "sd0_d0_mfp", "sd0_d1_mfp", "sd0_d2_d3_mfp",
+				 "sd0_cmd_mfp", "sd0_clk_mfp";
+			function = "sd0";
+		};
+	};
 };
 
 &timer {
@@ -90,3 +99,16 @@
 &uart3 {
 	status = "okay";
 };
+
+/* uSD */
+&mmc0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_default>;
+	cd-gpios = <&pinctrl 120 GPIO_ACTIVE_LOW>;
+	no-sdio;
+	no-mmc;
+	no-1-8-v;
+	bus-width = <4>;
+};
+
diff --git a/arch/arm64/boot/dts/actions/s700.dtsi b/arch/arm64/boot/dts/actions/s700.dtsi
index 9ed88aafc2da..ba498cf9217d 100644
--- a/arch/arm64/boot/dts/actions/s700.dtsi
+++ b/arch/arm64/boot/dts/actions/s700.dtsi
@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/clock/actions,s700-cmu.h>
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/owl-s700-powergate.h>
 #include <dt-bindings/reset/actions,s700-reset.h>
-- 
2.7.4