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>
master
Patrice Chotard 7 years ago committed by Tom Rini
parent eccac3e120
commit d8f69e563b
  1. 11
      arch/arm/dts/stm32h743-pinctrl.dtsi
  2. 9
      arch/arm/dts/stm32h743i-eval.dts

@ -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>;
};
};
};
};
};

@ -98,3 +98,12 @@
st,sdram-refcount = <1539>;
};
};
&sdmmc1 {
status = "okay";
pinctrl-0 = <&sdmmc1_pins>,
<&pinctrl_sdmmc1_level_shifter>;
pinctrl-names = "default";
bus-width = <4>;
st,dirpol;
};

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