From 379edbe434e787a40b757ebe371c779c69fc1038 Mon Sep 17 00:00:00 2001
From: Ludovic Barre <ludovic.barre@st.com>
Date: Tue, 26 Mar 2019 12:01:52 +0100
Subject: ARM: dts: stm32: add sdmmc1 support on stm32mp157c ed1 board

This patch adds sdmmc1 support on stm32mp157c ed1 board.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
---
 arch/arm/boot/dts/stm32mp157-pinctrl.dtsi | 68 +++++++++++++++++++++++++++++++
 arch/arm/boot/dts/stm32mp157c-ed1.dts     | 37 +++++++++++++++++
 2 files changed, 105 insertions(+)

(limited to 'arch/arm/boot/dts')

diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
index 9ec4694e93a7..9104896e6066 100644
--- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
@@ -325,6 +325,74 @@
 				};
 			};
 
+			sdmmc1_b4_pins_a: sdmmc1-b4-0 {
+				pins {
+					pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
+						 <STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */
+						 <STM32_PINMUX('C', 10, AF12)>, /* SDMMC1_D2 */
+						 <STM32_PINMUX('C', 11, AF12)>, /* SDMMC1_D3 */
+						 <STM32_PINMUX('C', 12, AF12)>, /* SDMMC1_CK */
+						 <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
+					slew-rate = <3>;
+					drive-push-pull;
+					bias-disable;
+				};
+			};
+
+			sdmmc1_b4_od_pins_a: sdmmc1-b4-od-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
+						 <STM32_PINMUX('C', 9, AF12)>, /* SDMMC1_D1 */
+						 <STM32_PINMUX('C', 10, AF12)>, /* SDMMC1_D2 */
+						 <STM32_PINMUX('C', 11, AF12)>, /* SDMMC1_D3 */
+						 <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
+					slew-rate = <3>;
+					drive-push-pull;
+					bias-disable;
+				};
+				pins2{
+					pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
+					slew-rate = <3>;
+					drive-open-drain;
+					bias-disable;
+				};
+			};
+
+			sdmmc1_b4_sleep_pins_a: sdmmc1-b4-sleep-0 {
+				pins {
+					pinmux = <STM32_PINMUX('C', 8, ANALOG)>, /* SDMMC1_D0 */
+						 <STM32_PINMUX('C', 9, ANALOG)>, /* SDMMC1_D1 */
+						 <STM32_PINMUX('C', 10, ANALOG)>, /* SDMMC1_D2 */
+						 <STM32_PINMUX('C', 11, ANALOG)>, /* SDMMC1_D3 */
+						 <STM32_PINMUX('C', 12, ANALOG)>, /* SDMMC1_CK */
+						 <STM32_PINMUX('D', 2, ANALOG)>; /* SDMMC1_CMD */
+				};
+			};
+
+			sdmmc1_dir_pins_a: sdmmc1-dir-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('F', 2, AF11)>, /* SDMMC1_D0DIR */
+						 <STM32_PINMUX('C', 7, AF8)>, /* SDMMC1_D123DIR */
+						 <STM32_PINMUX('B', 9, AF11)>; /* SDMMC1_CDIR */
+					slew-rate = <3>;
+					drive-push-pull;
+					bias-pull-up;
+				};
+				pins2{
+					pinmux = <STM32_PINMUX('E', 4, AF8)>; /* SDMMC1_CKIN */
+					bias-pull-up;
+				};
+			};
+
+			sdmmc1_dir_sleep_pins_a: sdmmc1-dir-sleep-0 {
+				pins {
+					pinmux = <STM32_PINMUX('F', 2, ANALOG)>, /* SDMMC1_D0DIR */
+						 <STM32_PINMUX('C', 7, ANALOG)>, /* SDMMC1_D123DIR */
+						 <STM32_PINMUX('B', 9, ANALOG)>, /* SDMMC1_CDIR */
+						 <STM32_PINMUX('E', 4, ANALOG)>; /* SDMMC1_CKIN */
+				};
+			};
+
 			uart4_pins_a: uart4-0 {
 				pins1 {
 					pinmux = <STM32_PINMUX('G', 11, AF6)>; /* UART4_TX */
diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index d66edb0c66cd..7f4b828d7931 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -7,6 +7,7 @@
 
 #include "stm32mp157c.dtsi"
 #include "stm32mp157-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "STMicroelectronics STM32MP157C eval daughter";
@@ -41,6 +42,14 @@
 		regulator-always-on;
 	};
 
+	vdd_sd: regulator-vdd_sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	vdd_usb: vdd-usb {
 		compatible = "regulator-fixed";
 		regulator-name = "vdd_usb";
@@ -48,6 +57,19 @@
 		regulator-max-microvolt = <3300000>;
 		regulator-always-on;
 	};
+
+	sd_switch: regulator-sd_switch {
+		compatible = "regulator-gpio";
+		regulator-name = "sd_switch";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2900000>;
+		regulator-type = "voltage";
+		regulator-always-on;
+
+		gpios = <&gpiof 14 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0>;
+		states = <1800000 0x1 2900000 0x0>;
+	};
 };
 
 &dts {
@@ -75,6 +97,21 @@
 	status = "okay";
 };
 
+&sdmmc1 {
+	pinctrl-names = "default", "opendrain", "sleep";
+	pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_dir_pins_a>;
+	pinctrl-1 = <&sdmmc1_b4_od_pins_a &sdmmc1_dir_pins_a>;
+	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a &sdmmc1_dir_sleep_pins_a>;
+	broken-cd;
+	st,sig-dir;
+	st,neg-edge;
+	st,use-ckin;
+	bus-width = <4>;
+	vmmc-supply = <&vdd_sd>;
+	vqmmc-supply = <&sd_switch>;
+	status = "okay";
+};
+
 &timers6 {
 	status = "okay";
 	/* spare dmas for other usage */
-- 
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