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ARM: dts: stm32: add sdmmc3 node for STM32MP1 boards

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On STM32MP1 EVAL and DISCOVERY boards, the SDMMC3 internal peripheral
can be used through the GPIO extension connector. The sdmmc3 node is then
added in the boards DT files, and the required pins are also added.
The node status is disabled as there is no device connected by default.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Yann Gautier <yann.gautier@st.com>
This commit is contained in:
Yann Gautier 2019-11-15 11:44:51 +01:00 committed by Alexandre Torgue
parent 0382bf82fe
commit 7e5d839819
3 changed files with 78 additions and 0 deletions
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54
arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
View file

@ -1053,6 +1053,60 @@
};
};
sdmmc3_b4_pins_a: sdmmc3-b4-0 {
pins1 {
pinmux = <STM32_PINMUX('F', 0, AF9)>, /* SDMMC3_D0 */
<STM32_PINMUX('F', 4, AF9)>, /* SDMMC3_D1 */
<STM32_PINMUX('F', 5, AF9)>, /* SDMMC3_D2 */
<STM32_PINMUX('D', 7, AF10)>, /* SDMMC3_D3 */
<STM32_PINMUX('F', 1, AF9)>; /* SDMMC3_CMD */
slew-rate = <1>;
drive-push-pull;
bias-pull-up;
};
pins2 {
pinmux = <STM32_PINMUX('G', 15, AF10)>; /* SDMMC3_CK */
slew-rate = <2>;
drive-push-pull;
bias-pull-up;
};
};
sdmmc3_b4_od_pins_a: sdmmc3-b4-od-0 {
pins1 {
pinmux = <STM32_PINMUX('F', 0, AF9)>, /* SDMMC3_D0 */
<STM32_PINMUX('F', 4, AF9)>, /* SDMMC3_D1 */
<STM32_PINMUX('F', 5, AF9)>, /* SDMMC3_D2 */
<STM32_PINMUX('D', 7, AF10)>; /* SDMMC3_D3 */
slew-rate = <1>;
drive-push-pull;
bias-pull-up;
};
pins2 {
pinmux = <STM32_PINMUX('G', 15, AF10)>; /* SDMMC3_CK */
slew-rate = <2>;
drive-push-pull;
bias-pull-up;
};
pins3 {
pinmux = <STM32_PINMUX('F', 1, AF9)>; /* SDMMC2_CMD */
slew-rate = <1>;
drive-open-drain;
bias-pull-up;
};
};
sdmmc3_b4_sleep_pins_a: sdmmc3-b4-sleep-0 {
pins {
pinmux = <STM32_PINMUX('F', 0, ANALOG)>, /* SDMMC3_D0 */
<STM32_PINMUX('F', 4, ANALOG)>, /* SDMMC3_D1 */
<STM32_PINMUX('F', 5, ANALOG)>, /* SDMMC3_D2 */
<STM32_PINMUX('D', 7, ANALOG)>, /* SDMMC3_D3 */
<STM32_PINMUX('G', 15, ANALOG)>, /* SDMMC3_CK */
<STM32_PINMUX('F', 1, ANALOG)>; /* SDMMC3_CMD */
};
};
spdifrx_pins_a: spdifrx-0 {
pins {
pinmux = <STM32_PINMUX('G', 12, AF8)>; /* SPDIF_IN1 */

12
arch/arm/boot/dts/stm32mp157a-dk1.dts
View file

@ -502,6 +502,18 @@
status = "okay";
};
&sdmmc3 {
pinctrl-names = "default", "opendrain", "sleep";
pinctrl-0 = <&sdmmc3_b4_pins_a>;
pinctrl-1 = <&sdmmc3_b4_od_pins_a>;
pinctrl-2 = <&sdmmc3_b4_sleep_pins_a>;
broken-cd;
st,neg-edge;
bus-width = <4>;
vmmc-supply = <&v3v3>;
status = "disabled";
};
&timers1 {
/* spare dmas for other usage */
/delete-property/dmas;

12
arch/arm/boot/dts/stm32mp157c-ev1.dts
View file

@ -283,6 +283,18 @@
};
};
&sdmmc3 {
pinctrl-names = "default", "opendrain", "sleep";
pinctrl-0 = <&sdmmc3_b4_pins_a>;
pinctrl-1 = <&sdmmc3_b4_od_pins_a>;
pinctrl-2 = <&sdmmc3_b4_sleep_pins_a>;
broken-cd;
st,neg-edge;
bus-width = <4>;
vmmc-supply = <&v3v3>;
status = "disabled";
};
&spi1 {
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>;