ARM: dts: stm32: add sdmmc1 support on stm32mp157c ed1 board

This patch adds sdmmc1 support on stm32mp157c ed1 board.

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/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
index 9ec4694..9104896 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
@@ -325,6 +325,74 @@
                                };
                        };
 
+                       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('F', 2, AF11)>, /* SDMMC1_D0DIR */
+                                                <STM32_PINMUX('C', 7, AF8)>, /* SDMMC1_D123DIR */
+                                                <STM32_PINMUX('B', 9, AF11)>; /* SDMMC1_CDIR */
+                                       slew-rate = <3>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                               pins2{
+                                       pinmux = <STM32_PINMUX('E', 4, AF8)>; /* SDMMC1_CKIN */
+                                       bias-pull-up;
+                               };
+                       };
+
+                       sdmmc1_dir_sleep_pins_a: sdmmc1-dir-sleep-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('F', 2, ANALOG)>, /* SDMMC1_D0DIR */
+                                                <STM32_PINMUX('C', 7, ANALOG)>, /* SDMMC1_D123DIR */
+                                                <STM32_PINMUX('B', 9, ANALOG)>, /* SDMMC1_CDIR */
+                                                <STM32_PINMUX('E', 4, ANALOG)>; /* SDMMC1_CKIN */
+                               };
+                       };
+
                        uart4_pins_a: uart4-0 {
                                pins1 {
                                        pinmux = <STM32_PINMUX('G', 11, AF6)>; /* UART4_TX */

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index d66edb0..7f4b828 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -7,6 +7,7 @@
 
 #include "stm32mp157c.dtsi"
 #include "stm32mp157-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
        model = "STMicroelectronics STM32MP157C eval daughter";
@@ -41,6 +42,14 @@
                regulator-always-on;
        };
 
+       vdd_sd: regulator-vdd_sd {
+               compatible = "regulator-fixed";
+               regulator-name = "vdd_sd";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-always-on;
+       };
+
        vdd_usb: vdd-usb {
                compatible = "regulator-fixed";
                regulator-name = "vdd_usb";
@@ -48,6 +57,19 @@
                regulator-max-microvolt = <3300000>;
                regulator-always-on;
        };
+
+       sd_switch: regulator-sd_switch {
+               compatible = "regulator-gpio";
+               regulator-name = "sd_switch";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <2900000>;
+               regulator-type = "voltage";
+               regulator-always-on;
+
+               gpios = <&gpiof 14 GPIO_ACTIVE_HIGH>;
+               gpios-states = <0>;
+               states = <1800000 0x1 2900000 0x0>;
+       };
 };
 
 &dts {
@@ -75,6 +97,21 @@
        status = "okay";
 };
 
+&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 = <&vdd_sd>;
+       vqmmc-supply = <&sd_switch>;
+       status = "okay";
+};
+
 &timers6 {
        status = "okay";
        /* spare dmas for other usage */