ARM: dts: stm32: enable sdmmc2 node for stm32mp157c-ed1 board

On STM32MP157C-ED1, the eMMC is connected on instance 2 of SDMMC
peripheral. The sdmmc2 node is then added in the board DT file, as well as
the pins nodes in the pinctrl file.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Yann Gautier <yann.gautier@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 e186b8499a2b8980c4a66f9c9658cb2ee9ffda06..bdd4113f473eb897646b4c216fac5355e378cbac 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
@@ -935,6 +935,124 @@ pins {
                                };
                        };
 
+                       sdmmc2_b4_pins_a: sdmmc2-b4-0 {
+                               pins1 {
+                                       pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
+                                                <STM32_PINMUX('B', 15, AF9)>, /* SDMMC2_D1 */
+                                                <STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
+                                                <STM32_PINMUX('B', 4, AF9)>, /* SDMMC2_D3 */
+                                                <STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
+                                       slew-rate = <1>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                               pins2 {
+                                       pinmux = <STM32_PINMUX('E', 3, AF9)>; /* SDMMC2_CK */
+                                       slew-rate = <2>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                       };
+
+                       sdmmc2_b4_od_pins_a: sdmmc2-b4-od-0 {
+                               pins1 {
+                                       pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
+                                                <STM32_PINMUX('B', 15, AF9)>, /* SDMMC2_D1 */
+                                                <STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
+                                                <STM32_PINMUX('B', 4, AF9)>; /* SDMMC2_D3 */
+                                       slew-rate = <1>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                               pins2 {
+                                       pinmux = <STM32_PINMUX('E', 3, AF9)>; /* SDMMC2_CK */
+                                       slew-rate = <2>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                               pins3 {
+                                       pinmux = <STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
+                                       slew-rate = <1>;
+                                       drive-open-drain;
+                                       bias-pull-up;
+                               };
+                       };
+
+                       sdmmc2_b4_sleep_pins_a: sdmmc2-b4-sleep-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('B', 14, ANALOG)>, /* SDMMC2_D0 */
+                                                <STM32_PINMUX('B', 15, ANALOG)>, /* SDMMC2_D1 */
+                                                <STM32_PINMUX('B', 3, ANALOG)>, /* SDMMC2_D2 */
+                                                <STM32_PINMUX('B', 4, ANALOG)>, /* SDMMC2_D3 */
+                                                <STM32_PINMUX('E', 3, ANALOG)>, /* SDMMC2_CK */
+                                                <STM32_PINMUX('G', 6, ANALOG)>; /* SDMMC2_CMD */
+                               };
+                       };
+
+                       sdmmc2_b4_pins_b: sdmmc2-b4-1 {
+                               pins1 {
+                                       pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
+                                                <STM32_PINMUX('B', 15, AF9)>, /* SDMMC2_D1 */
+                                                <STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
+                                                <STM32_PINMUX('B', 4, AF9)>, /* SDMMC2_D3 */
+                                                <STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
+                                       slew-rate = <1>;
+                                       drive-push-pull;
+                                       bias-disable;
+                               };
+                               pins2 {
+                                       pinmux = <STM32_PINMUX('E', 3, AF9)>; /* SDMMC2_CK */
+                                       slew-rate = <2>;
+                                       drive-push-pull;
+                                       bias-disable;
+                               };
+                       };
+
+                       sdmmc2_b4_od_pins_b: sdmmc2-b4-od-1 {
+                               pins1 {
+                                       pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
+                                                <STM32_PINMUX('B', 15, AF9)>, /* SDMMC2_D1 */
+                                                <STM32_PINMUX('B', 3, AF9)>, /* SDMMC2_D2 */
+                                                <STM32_PINMUX('B', 4, AF9)>; /* SDMMC2_D3 */
+                                       slew-rate = <1>;
+                                       drive-push-pull;
+                                       bias-disable;
+                               };
+                               pins2 {
+                                       pinmux = <STM32_PINMUX('E', 3, AF9)>; /* SDMMC2_CK */
+                                       slew-rate = <2>;
+                                       drive-push-pull;
+                                       bias-disable;
+                               };
+                               pins3 {
+                                       pinmux = <STM32_PINMUX('G', 6, AF10)>; /* SDMMC2_CMD */
+                                       slew-rate = <1>;
+                                       drive-open-drain;
+                                       bias-disable;
+                               };
+                       };
+
+                       sdmmc2_d47_pins_a: sdmmc2-d47-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('A', 8, AF9)>, /* SDMMC2_D4 */
+                                                <STM32_PINMUX('A', 9, AF10)>, /* SDMMC2_D5 */
+                                                <STM32_PINMUX('E', 5, AF9)>, /* SDMMC2_D6 */
+                                                <STM32_PINMUX('D', 3, AF9)>; /* SDMMC2_D7 */
+                                       slew-rate = <1>;
+                                       drive-push-pull;
+                                       bias-pull-up;
+                               };
+                       };
+
+                       sdmmc2_d47_sleep_pins_a: sdmmc2-d47-sleep-0 {
+                               pins {
+                                       pinmux = <STM32_PINMUX('A', 8, ANALOG)>, /* SDMMC2_D4 */
+                                                <STM32_PINMUX('A', 9, ANALOG)>, /* SDMMC2_D5 */
+                                                <STM32_PINMUX('E', 5, ANALOG)>, /* SDMMC2_D6 */
+                                                <STM32_PINMUX('D', 3, ANALOG)>; /* SDMMC2_D7 */
+                               };
+                       };
+
                        spdifrx_pins_a: spdifrx-0 {
                                pins {
                                        pinmux = <STM32_PINMUX('G', 12, AF8)>; /* SPDIF_IN1 */

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index b8cc0fb0ec484d70c0620287d5be82c0ffba63f2..207146c98154ae8276b02f6c6e629d44cbea8da5 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -305,6 +305,22 @@ &sdmmc1 {
        status = "okay";
 };
 
+&sdmmc2 {
+       pinctrl-names = "default", "opendrain", "sleep";
+       pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>;
+       pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_a>;
+       pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_a>;
+       non-removable;
+       no-sd;
+       no-sdio;
+       st,neg-edge;
+       bus-width = <8>;
+       vmmc-supply = <&v3v3>;
+       vqmmc-supply = <&v3v3>;
+       mmc-ddr-3_3v;
+       status = "okay";
+};
+
 &timers6 {
        status = "okay";
        /* spare dmas for other usage */