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ARM: dts: stm32: add initial support of stm32mp135f-dk board 

Add support of stm32mp135f discovery board (part number: STM32MP135F-DK).
It embeds a STM32MP135F SOC with 512 MB of DDR3.
Several connections are available on this board:
    4*USB2.0, 1*USB2.0 typeC DRD, SDcard, 2*RJ45, HDMI, Combo Wifi/BT, ...

Only SD card, uart4 (console) and watchdog IPs are enabled in this commit.

Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Alexandre Torgue 2021-07-23 15:28:10 +02:00
parent 396e4168c5
commit 7e9e2d18c0
3 changed files with 121 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
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@ -1113,6 +1113,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
stm32h743i-eval.dtb \
stm32h743i-disco.dtb \
stm32h750i-art-pi.dtb \
stm32mp135f-dk.dtb \
stm32mp153c-dhcom-drc02.dtb \
stm32mp157a-avenger96.dtb \
stm32mp157a-dhcor-avenger96.dtb \

64
arch/arm/boot/dts/stm32mp13-pinctrl.dtsi Normal file
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@ -0,0 +1,64 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright (C) STMicroelectronics 2021 - All Rights Reserved
* Author: Alexandre Torgue <alexandre.torgue@foss.st.com>
*/
#include <dt-bindings/pinctrl/stm32-pinfunc.h>
&pinctrl {
sdmmc1_b4_pins_a: sdmmc1-b4-0 {
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('D', 2, AF12)>; /* SDMMC1_CMD */
slew-rate = <1>;
drive-push-pull;
bias-disable;
};
pins2 {
pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
slew-rate = <2>;
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 */
slew-rate = <1>;
drive-push-pull;
bias-disable;
};
pins2 {
pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
slew-rate = <2>;
drive-push-pull;
bias-disable;
};
pins3 {
pinmux = <STM32_PINMUX('D', 2, AF12)>; /* SDMMC1_CMD */
slew-rate = <1>;
drive-open-drain;
bias-disable;
};
};
uart4_pins_a: uart4-0 {
pins1 {
pinmux = <STM32_PINMUX('D', 6, AF8)>; /* UART4_TX */
bias-disable;
drive-push-pull;
slew-rate = <0>;
};
pins2 {
pinmux = <STM32_PINMUX('D', 8, AF8)>; /* UART4_RX */
bias-disable;
};
};
};

56
arch/arm/boot/dts/stm32mp135f-dk.dts Normal file
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@ -0,0 +1,56 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright (C) STMicroelectronics 2021 - All Rights Reserved
* Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
*/
/dts-v1/;
#include "stm32mp135.dtsi"
#include "stm32mp13xf.dtsi"
#include "stm32mp13-pinctrl.dtsi"
/ {
model = "STMicroelectronics STM32MP135F-DK Discovery Board";
compatible = "st,stm32mp135f-dk", "st,stm32mp135";
aliases {
serial0 = &uart4;
};
memory@c0000000 {
device_type = "memory";
reg = <0xc0000000 0x20000000>;
};
vdd_sd: vdd-sd {
compatible = "regulator-fixed";
regulator-name = "vdd_sd";
regulator-min-microvolt = <2900000>;
regulator-max-microvolt = <2900000>;
regulator-always-on;
};
};
&iwdg2 {
timeout-sec = <32>;
status = "okay";
};
&sdmmc1 {
pinctrl-names = "default", "opendrain";
pinctrl-0 = <&sdmmc1_b4_pins_a>;
pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
broken-cd;
disable-wp;
st,neg-edge;
bus-width = <4>;
vmmc-supply = <&vdd_sd>;
status = "okay";
};
&uart4 {
pinctrl-names = "default";
pinctrl-0 = <&uart4_pins_a>;
status = "okay";
};