ARM: dts: stm32: add initial support of stm32mp157a-dk1 board

Add support of stm32mp157a discovery1 board (part number: STM32MP157A-DK1).
This board embeds a STM32MP157a SOC with AC package (TFBGA361, 148 ios)
and 512MB of DDR3. Several connections are available on this boards:
4*USB2.0, 1*USB2.0 typeC, SDcard, RJ45, HDMI, Arduino connector, ...

This patch enables basic support for a kernel boot.

Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f4f5aeaf32985c3f5a5bebe88751e90a16311892..acaa0e536313c938481278c9f58ff7aefea06a77 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -964,6 +964,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
        stm32746g-eval.dtb \
        stm32h743i-eval.dtb \
        stm32h743i-disco.dtb \
+       stm32mp157a-dk1.dtb \
        stm32mp157c-ed1.dtb \
        stm32mp157c-ev1.dtb
 dtb-$(CONFIG_MACH_SUN4I) += \

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm32mp157a-dk1.dts
new file mode 100644 (file)
index 0000000..873a80e
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (C) STMicroelectronics 2019 - All Rights Reserved
+ * Author: Alexandre Torgue <alexandre.torgue@st.com> for STMicroelectronics.
+ */
+
+/dts-v1/;
+
+#include "stm32mp157c.dtsi"
+#include "stm32mp157-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+       model = "STMicroelectronics STM32MP157A-DK1 Discovery Board";
+       compatible = "st,stm32mp157a-dk1", "st,stm32mp157";
+
+       aliases {
+               ethernet0 = &ethernet0;
+               serial0 = &uart4;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory@c0000000 {
+               reg = <0xc0000000 0x20000000>;
+       };
+
+       led {
+               compatible = "gpio-leds";
+               blue {
+                       label = "heartbeat";
+                       gpios = <&gpiod 11 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger = "heartbeat";
+                       default-state = "off";
+               };
+       };
+};
+
+&ethernet0 {
+       status = "okay";
+       pinctrl-0 = <&ethernet0_rgmii_pins_a>;
+       pinctrl-1 = <&ethernet0_rgmii_pins_sleep_a>;
+       pinctrl-names = "default", "sleep";
+       phy-mode = "rgmii";
+       max-speed = <1000>;
+       phy-handle = <&phy0>;
+
+       mdio0 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "snps,dwmac-mdio";
+               phy0: ethernet-phy@0 {
+                       reg = <0>;
+               };
+       };
+};
+
+&iwdg2 {
+       timeout-sec = <32>;
+       status = "okay";
+};
+
+&rng1 {
+       status = "okay";
+};
+
+&rtc {
+       status = "okay";
+};
+
+&uart4 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart4_pins_a>;
+       status = "okay";
+};