From: Ludovic Barre <ludovic.barre@xxxxxx>
This patch adds support of micro sd card connected to sdmmc1.
Signed-off-by: Ludovic Barre <ludovic.barre@xxxxxx>
---
arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 26 ++++++++++++++++++++++++++
arch/arm/boot/dts/stm32h743i-eval.dts | 11 +++++++++++
2 files changed, 37 insertions(+)
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";
--
2.7.4
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