ARM: dts: stm32: add sdmmc1 support on stm32h743i eval board

This patch adds sdmmc1 support on stm32h743i eval board.
This board has an external driver to control signal direction polarity.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
index 980b2769caf9ca11539266940b82249e9c530eeb..e44e7baa3f173ad4ce4f645e826200916a41ec11 100644 (file)
--- a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
@@ -188,6 +188,74 @@ pins {
                                };
                        };
 
+                       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_b4_od_pins_a: sdmmc1-b4-od-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_CK */
+                                       slew-rate = <3>;
+                                       drive-push-pull;
+                                       bias-disable;
+                               };
+                               pins2{
+                                       pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
+                                       slew-rate = <3>;
+                                       drive-open-drain;
+                                       bias-disable;
+                               };
+                       };
+
+                       sdmmc1_b4_sleep_pins_a: sdmmc1-b4-sleep-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('C', 8, ANALOG)>, /* SDMMC1_D0 */
+                                                <STM32_PINMUX('C', 9, ANALOG)>, /* SDMMC1_D1 */
+                                                <STM32_PINMUX('C', 10, ANALOG)>, /* SDMMC1_D2 */
+                                                <STM32_PINMUX('C', 11, ANALOG)>, /* SDMMC1_D3 */
+                                                <STM32_PINMUX('C', 12, ANALOG)>, /* SDMMC1_CK */
+                                                <STM32_PINMUX('D', 2, ANALOG)>; /* SDMMC1_CMD */
+                               };
+                       };
+
+                       sdmmc1_dir_pins_a: sdmmc1-dir-0 {
+                               pins1 {
+                                       pinmux = <STM32_PINMUX('C', 6, AF8)>, /* SDMMC1_D0DIR */
+                                                <STM32_PINMUX('C', 7, AF8)>, /* SDMMC1_D123DIR */
+                                                <STM32_PINMUX('B', 9, AF7)>; /* SDMMC1_CDIR */
+                                       slew-rate = <3>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                               pins2{
+                                       pinmux = <STM32_PINMUX('B', 8, AF7)>; /* SDMMC1_CKIN */
+                                       bias-pull-up;
+                               };
+                       };
+
+                       sdmmc1_dir_sleep_pins_a: sdmmc1-dir-sleep-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('C', 6, ANALOG)>, /* SDMMC1_D0DIR */
+                                                <STM32_PINMUX('C', 7, ANALOG)>, /* SDMMC1_D123DIR */
+                                                <STM32_PINMUX('B', 9, ANALOG)>, /* SDMMC1_CDIR */
+                                                <STM32_PINMUX('B', 8, ANALOG)>; /* SDMMC1_CKIN */
+                               };
+                       };
+
                        usart1_pins: usart1@0 {
                                pins1 {
                                        pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */

diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
index ebc3f0933f5c236ab4a0069a0a6510bf5c6d617c..ab78ad53237557066680ab48d2e384680f8646a0 100644 (file)
--- a/arch/arm/boot/dts/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -70,13 +70,20 @@ vdda: regulator-vdda {
                regulator-always-on;
        };
 
+       v2v9_sd: regulator-v2v9_sd {
+               compatible = "regulator-fixed";
+               regulator-name = "v2v9_sd";
+               regulator-min-microvolt = <2900000>;
+               regulator-max-microvolt = <2900000>;
+               regulator-always-on;
+       };
+
        usbotg_hs_phy: usb-phy {
                #phy-cells = <0>;
                compatible = "usb-nop-xceiv";
                clocks = <&rcc USB1ULPI_CK>;
                clock-names = "main_clk";
        };
-
 };
 
 &adc_12 {
@@ -122,6 +129,20 @@ phy0: ethernet-phy@0 {
        };
 };
 
+&sdmmc1 {
+       pinctrl-names = "default", "opendrain", "sleep";
+       pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_dir_pins_a>;
+       pinctrl-1 = <&sdmmc1_b4_od_pins_a &sdmmc1_dir_pins_a>;
+       pinctrl-2 = <&sdmmc1_b4_sleep_pins_a &sdmmc1_dir_sleep_pins_a>;
+       broken-cd;
+       st,sig-dir;
+       st,neg-edge;
+       st,use-ckin;
+       bus-width = <4>;
+       vmmc-supply = <&v2v9_sd>;
+       status = "okay";
+};
+
 &usart1 {
        pinctrl-0 = <&usart1_pins>;
        pinctrl-names = "default";