[PATCH v6 11/16] arm64: dts: st: add sdmmc2 pins for stm32mp25

[Dario Binacchi <dario.binacchi@amarulasolutions.com>]

Add the sdmmc2 pins used on MicroGEA-STM32MP257-RMM board.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

(no changes since v5)

Changes in v5:
- Change SDMMC2_CK pin bias from pull-up to bias-disable to
  avoid signal integrity issues on the clock line. Suggested by Sashiko

 arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
index 002fbc724b9d..c816a6aece47 100644
--- a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi
@@ -622,6 +622,86 @@ pins {
 		};
 	};
 
+	/omit-if-no-ref/
+	sdmmc2_b4_pins_a: sdmmc2-b4-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('E', 13, AF12)>, /* SDMMC2_D0 */
+				 <STM32_PINMUX('E', 11, AF12)>, /* SDMMC2_D1 */
+				 <STM32_PINMUX('E', 8, AF12)>, /* SDMMC2_D2 */
+				 <STM32_PINMUX('E', 12, AF12)>, /* SDMMC2_D3 */
+				 <STM32_PINMUX('E', 15, AF12)>; /* SDMMC2_CMD */
+			slew-rate = <1>;
+			drive-push-pull;
+			bias-pull-up;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('E', 14, AF12)>; /* SDMMC2_CK */
+			slew-rate = <2>;
+			drive-push-pull;
+			bias-disable;
+		};
+	};
+
+	/omit-if-no-ref/
+	sdmmc2_b4_od_pins_a: sdmmc2-b4-od-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('E', 13, AF12)>, /* SDMMC2_D0 */
+				 <STM32_PINMUX('E', 11, AF12)>, /* SDMMC2_D1 */
+				 <STM32_PINMUX('E', 8, AF12)>, /* SDMMC2_D2 */
+				 <STM32_PINMUX('E', 12, AF12)>; /* SDMMC2_D3 */
+			slew-rate = <1>;
+			drive-push-pull;
+			bias-pull-up;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('E', 14, AF12)>; /* SDMMC2_CK */
+			slew-rate = <2>;
+			drive-push-pull;
+			bias-disable;
+		};
+		pins3 {
+			pinmux = <STM32_PINMUX('E', 15, AF12)>; /* SDMMC2_CMD */
+			slew-rate = <1>;
+			drive-open-drain;
+			bias-pull-up;
+		};
+	};
+
+	/omit-if-no-ref/
+	sdmmc2_b4_sleep_pins_a: sdmmc2-b4-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('E', 13, ANALOG)>, /* SDMMC2_D0 */
+				 <STM32_PINMUX('E', 11, ANALOG)>, /* SDMMC2_D1 */
+				 <STM32_PINMUX('E', 8, ANALOG)>, /* SDMMC2_D2 */
+				 <STM32_PINMUX('E', 12, ANALOG)>, /* SDMMC2_D3 */
+				 <STM32_PINMUX('E', 14, ANALOG)>, /* SDMMC2_CK */
+				 <STM32_PINMUX('E', 15, ANALOG)>; /* SDMMC2_CMD */
+		};
+	};
+
+	/omit-if-no-ref/
+	sdmmc2_d47_pins_a: sdmmc2-d47-0 {
+		pins {
+			pinmux = <STM32_PINMUX('E', 10, AF12)>, /* SDMMC2_D4 */
+				 <STM32_PINMUX('E', 9, AF12)>, /* SDMMC2_D5 */
+				 <STM32_PINMUX('E', 6, AF12)>, /* SDMMC2_D6 */
+				 <STM32_PINMUX('E', 7, AF12)>; /* SDMMC2_D7 */
+			slew-rate = <1>;
+			drive-push-pull;
+			bias-pull-up;
+		};
+	};
+
+	/omit-if-no-ref/
+	sdmmc2_d47_sleep_pins_a: sdmmc2-d47-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('E', 10, ANALOG)>, /* SDMMC2_D4 */
+				 <STM32_PINMUX('E', 9, ANALOG)>, /* SDMMC2_D5 */
+				 <STM32_PINMUX('E', 6, ANALOG)>, /* SDMMC2_D6 */
+				 <STM32_PINMUX('E', 7, ANALOG)>; /* SDMMC2_D7 */
+		};
+	};
+
 	/omit-if-no-ref/
 	spi3_pins_a: spi3-0 {
 		pins1 {
-- 
2.43.0