ARM: DTS: stm32: add SDMMC support fo stm32h743-eval
Add pinctrl and sdmmc nodes to add MMC support for
STM32H743 evaluation board.
Evaluation board needs a second pinctrl node
"pinctrl_sdmmc1_level_shifter" to drive a level shifter
on MMC bus.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/arch/arm/dts/stm32h743-pinctrl.dtsi b/arch/arm/dts/stm32h743-pinctrl.dtsi
index d6a79ae..e4f4aa5 100644
--- a/arch/arm/dts/stm32h743-pinctrl.dtsi
+++ b/arch/arm/dts/stm32h743-pinctrl.dtsi
@@ -259,6 +259,17 @@
bias-disable;
};
};
+
+ pinctrl_sdmmc1_level_shifter: sdmmc0_ls@0 {
+ pins {
+ pinmux = <STM32H7_PB8_FUNC_SDMMC1_CKIN>,
+ <STM32H7_PB9_FUNC_SDMMC1_CDIR>,
+ <STM32H7_PC6_FUNC_SDMMC1_D0DIR>,
+ <STM32H7_PC7_FUNC_SDMMC1_D123DIR>;
+ drive-push-pull;
+ slew-rate = <3>;
+ };
+ };
};
};
};