[PATCH 1/6] ARM: dts: stm32: Add sdio pins definition for stm32f7
Alexandre Torgue
alexandre.torgue at st.com
Thu Mar 1 01:51:01 PST 2018
Hi Patrice
On 03/01/2018 10:43 AM, patrice.chotard at st.com wrote:
> From: Patrice Chotard <patrice.chotard at st.com>
>
> Add sdio pins definition for the 2 sdio instances embeds in stm32f746.
>
> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
> ---
> arch/arm/boot/dts/stm32f7-pinctrl.dtsi | 62 ++++++++++++++++++++++++++++++++++
> 1 file changed, 62 insertions(+)
>
> diff --git a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi
> index f518de184e52..fb40f0835dd4 100644
> --- a/arch/arm/boot/dts/stm32f7-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/stm32f7-pinctrl.dtsi
> @@ -222,6 +222,68 @@
> slew-rate = <2>;
> };
> };
> +
> + sdio_pins: sdio_pins at 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 CLK */
> + <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1 CMD */
> + drive-push-pull;
> + slew-rate = <2>;
> + };
> + };
if you have 2 pins groups, please use '_a' for the first one. You could
have something like:
sdio_pins_a
sdio_od_pins_a
and
sdio_pins_b
sdio_od_pins_b
> + sdio_pins_od: sdio_pins_od at 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 CLK */
> + drive-push-pull;
> + slew-rate = <2>;
> + };
> +
> + pins2 {
> + pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1 CMD */
> + drive-open-drain;
> + slew-rate = <2>;
> + };
> + };
> +
> + sdio_pins_b: sdio_pins_b at 0 {
> + pins {
> + pinmux = <STM32_PINMUX('G', 9, AF11)>, /* SDMMC2 D0 */
> + <STM32_PINMUX('G', 10, AF11)>, /* SDMMC2 D1 */
> + <STM32_PINMUX('B', 3, AF10)>, /* SDMMC2 D2 */
> + <STM32_PINMUX('B', 4, AF10)>, /* SDMMC2 D3 */
> + <STM32_PINMUX('D', 6, AF11)>, /* SDMMC2 CLK */
> + <STM32_PINMUX('D', 7, AF11)>; /* SDMMC2 CMD */
> + drive-push-pull;
> + slew-rate = <2>;
> + };
> + };
> +
> + sdio_pins_od_b: sdio_pins_od_b at 0 {
> + pins1 {
> + pinmux = <STM32_PINMUX('G', 9, AF11)>, /* SDMMC2 D0 */
> + <STM32_PINMUX('G', 10, AF11)>, /* SDMMC2 D1 */
> + <STM32_PINMUX('B', 3, AF10)>, /* SDMMC2 D2 */
> + <STM32_PINMUX('B', 4, AF10)>, /* SDMMC2 D3 */
> + <STM32_PINMUX('D', 6, AF11)>; /* SDMMC2 CLK */
> + drive-push-pull;
> + slew-rate = <2>;
> + };
> +
> + pins2 {
> + pinmux = <STM32_PINMUX('D', 7, AF11)>; /* SDMMC2 CMD */
> + drive-open-drain;
> + slew-rate = <2>;
> + };
> + };
> };
> };
> };
>
More information about the linux-arm-kernel
mailing list