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[4/5] ARM: dts: stm32: add sdmmc1 support for stm32h743i-eval

Message ID 1518701697-14242-5-git-send-email-ludovic.Barre@st.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ludovic BARRE Feb. 15, 2018, 1:34 p.m. UTC 
From: Ludovic Barre <ludovic.barre@st.com>

This patch adds support of micro sd card connected to sdmmc1.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
 arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 26 ++++++++++++++++++++++++++
 arch/arm/boot/dts/stm32h743i-eval.dts    | 11 +++++++++++
 2 files changed, 37 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
index 65c1cd0..ef17192 100644
--- a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
@@ -164,6 +164,32 @@ 
 					bias-disable;
 				};
 			};
+
+			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_dir_pins_a: sdmmc1-dir@0 {
+				pins {
+					pinmux = <STM32_PINMUX('C', 6, AF8)>, /* SDMMC1_D0DIR */
+						 <STM32_PINMUX('C', 7, AF8)>, /* SDMMC1_D123DIR */
+						 <STM32_PINMUX('B', 9, AF7)>, /* SDMMC1_CDIR */
+						 <STM32_PINMUX('B', 8, AF7)>; /* SDMMC1_CKIN */
+					slew-rate = <3>;
+					drive-push-pull;
+					bias-pull-up;
+				};
+			};
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
index c6ceda8..d564f8f 100644
--- a/arch/arm/boot/dts/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -98,6 +98,17 @@ 
 	clock-frequency = <25000000>;
 };
 
+&sdmmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_dir_pins_a>;
+	broken-cd;
+	st,dirpol;
+	st,negedge;
+	st,pin-ckin;
+	bus-width = <4>;
+	status = "okay";
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins>;
 	pinctrl-names = "default";