STMicroelectronics · gabrielBaW · Aug 8, 2019 · Aug 8, 2019 · Aug 27, 2019 · Sep 15, 2020
diff --git a/arch/arm/boot/dts/stm32mp15-no-scmi.dtsi b/arch/arm/boot/dts/stm32mp15-no-scmi.dtsi
@@ -154,4 +154,5 @@
 
 &usart1 {
 	clocks = <&rcc USART1_K>;
+	resets = <&rcc USART1_R>;
 };
diff --git a/arch/arm/boot/dts/stm32mp157c-bytedevkit.dts b/arch/arm/boot/dts/stm32mp157c-bytedevkit.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 2020 bytes at work AG - http://www.bytesatwork.ch
+ */
+
+/dts-v1/;
+
+#include "stm32mp157c-bytedevkit.dtsi"
+
+/ {
+	model = "byteDEVKIT V1.1";
+	compatible = "batw,bytedevkit", "batw,m5", "st,stm32mp157";
+};
diff --git a/arch/arm/boot/dts/stm32mp157c-bytedevkit.dtsi b/arch/arm/boot/dts/stm32mp157c-bytedevkit.dtsi
@@ -0,0 +1,303 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 2020 bytes at work AG - http://www.bytesatwork.ch
+ */
+
+#include "stm32mp157c-byteengine-m5.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
+
+/ {
+	aliases {
+		serial0 = &uart4;
+		ethernet0 = &ethernet0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	usb_vbus: regulator-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_en_vbus";
+		gpio = <&gpiob 13 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	usbotg_vbus: regulator-vbus-otg {
+		compatible = "regulator-fixed";
+		regulator-name = "usbotg_en_vbus";
+		gpio = <&gpiob 11 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-boot-off;
+	};
+
+	panel_backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm2 0 2000>;
+		brightness-levels = <0 4 8 16 32 64 128 200 255>;
+		default-brightness-level = <8>;
+		power-supply = <&v3v3>;
+	};
+};
+
+&pinctrl {
+	uart4_pins: uart4-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('H', 13, AF8)>; /* UART4_TX */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+
+		pins2 {
+			pinmux = <STM32_PINMUX('H', 14, AF8)>; /* UART4_RX */
+			bias-disable;
+		};
+	};
+
+	uart4_idle_pins: uart4-idle-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('H', 13, ANALOG)>; /* UART4_TX */
+		};
+
+		pins2 {
+			pinmux = <STM32_PINMUX('H', 14, AF8)>; /* UART4_RX */
+			bias-disable;
+		};
+	};
+
+	uart4_sleep_pins: uart4-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('H', 13, ANALOG)>, /* UART4_TX */
+				 <STM32_PINMUX('H', 14, ANALOG)>; /* UART4_RX */
+		};
+	};
+
+	pwm2_pins: pwm2-0 {
+		pins {
+			pinmux = <STM32_PINMUX('G', 8, AF1)>; /* TIM2_CH1 */
+			bias-pull-down;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+	};
+
+	pwm2_sleep_pins: pwm2-sleep-0 {
+		pins {
+			pinmux = <STM32_PINMUX('G', 8, ANALOG)>; /* TIM2_CH1 */
+		};
+	};
+
+	ethernet0_rmii_pins: rmii-0 {
+		pins1 {
+			pinmux = <STM32_PINMUX('B', 12, AF11)>, /* ETH_RMII_TXD0 */
+				 <STM32_PINMUX('G', 14, AF11)>, /* ETH_RMII_TXD1 */
+				 <STM32_PINMUX('G', 11, AF11)>, /* ETH_RMII_TX_EN */
+				 <STM32_PINMUX('C', 1, AF11)>; /* ETH_MDC */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <2>;
+		};
+
+		pins2 {
+			pinmux = <STM32_PINMUX('A', 2, AF11)>; /* ETH_MDIO */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+
+		pins3 {
+			pinmux = <STM32_PINMUX('C', 4, AF11)>, /* ETH_RMII_RXD0 */
+				 <STM32_PINMUX('C', 5, AF11)>, /* ETH_RMII_RXD1 */
+				 <STM32_PINMUX('A', 1, AF11)>, /* ETH_RMII_REF_CLK */
+				 <STM32_PINMUX('A', 7, AF11)>; /* ETH_RMII_CRS_DV */
+			bias-disable;
+		};
+	};
+
+	/* same as &i2c2_pins_a but with pull-up */
+	i2c2_pins: i2c2-0 {
+		pins {
+			pinmux = <STM32_PINMUX('H', 4, AF4)>, /* I2C2_SCL */
+				 <STM32_PINMUX('H', 5, AF4)>; /* I2C2_SDA */
+			bias-pull-up;
+			drive-open-drain;
+			slew-rate = <0>;
+		};
+	};
+};
+
+&uart4 {
+	pinctrl-names = "default", "sleep", "idle";
+	pinctrl-0 = <&uart4_pins>;
+	pinctrl-1 = <&uart4_sleep_pins>;
+	pinctrl-2 = <&uart4_idle_pins>;
+	/delete-property/dmas;
+	/delete-property/dma-names;
+	status = "okay";
+};
+
+&sdmmc1 {
+	pinctrl-names = "default", "opendrain", "sleep";
+	pinctrl-0 = <&sdmmc1_b4_pins_a>;
+	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
+	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
+	broken-cd;
+	st,neg-edge;
+	bus-width = <4>;
+	vmmc-supply = <&v3v3>;
+	status = "okay";
+};
+
+&ethernet0 {
+	status = "okay";
+	pinctrl-0 = <&ethernet0_rmii_pins>;
+	pinctrl-names = "default";
+	phy-mode = "rmii";
+	phy-handle = <&phy0>;
+	max-speed = <100>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c2_pins>;
+	pinctrl-1 = <&i2c2_sleep_pins_a>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	status = "okay";
+	/delete-property/dmas;
+	/delete-property/dma-names;
+
+	gt911@5d {
+		compatible = "goodix,gt911";
+		reg = <0x5d>;
+		interrupt-parent = <&gpiob>;
+		interrupts = <7 0>;
+
+		irq-gpios = <&gpiob 7 0>;
+		reset-gpios = <&gpiod 3 0>;
+	};
+};
+
+&usbh_ehci {
+	phys = <&usbphyc_port0>;
+	phy-names = "usb";
+	status = "okay";
+};
+
+&usbh_ohci {
+	phys = <&usbphyc_port0>;           /* Use USBPHYC HS PHY port, mapped on USBH controller */
+	phy-names = "usb";
+	status = "okay";
+};
+
+&usbphyc {
+	status = "okay";
+};
+
+&usbphyc_port0 {
+	phy-supply = <&usb_vbus>;
+};
+
+
+/* USB OTG Port (peripheral only) */
+&usbotg_hs {
+	pinctrl-names = "default";
+	pinctrl-0 = <&usbotg_hs_pins_a>;
+	dr_mode = "peripheral";
+	phys = <&usbphyc_port1 0>;
+	phy-names = "usb2-phy";
+	status = "okay";
+};
+
+&iwdg2 {
+	timeout-sec = <32>;
+	status = "okay";
+};
+
+&dsi {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			dsi_in: endpoint {
+				remote-endpoint = <&ltdc_ep0_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dsi_out: endpoint {
+				remote-endpoint = <&dsi_panel_in>;
+			};
+		};
+	};
+
+	panel-dsi@0 {
+		compatible = "youritech,ili9806";
+		reg = <0>;
+		reset-gpios = <&gpiog 2 GPIO_ACTIVE_LOW>;
+		power-supply = <&v3v3>;
+		backlight = <&panel_backlight>;
+		status = "okay";
+
+		port {
+			dsi_panel_in: endpoint {
+				remote-endpoint = <&dsi_out>;
+			};
+		};
+	};
+};
+
+&ltdc {
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&dsi_in>;
+		};
+	};
+};
+
+/* Backlight PWM */
+&timers2 {
+	/* spare dmas for other usage (un-delete to enable pwm capture) */
+	/delete-property/dmas;
+	/delete-property/dma-names;
+	status = "okay";
+
+	pwm2: pwm {
+		pinctrl-0 = <&pwm2_pins>;
+		pinctrl-1 = <&pwm2_sleep_pins>;
+		pinctrl-names = "default", "sleep";
+		#pwm-cells = <2>;
+		status = "okay";
+	};
+};
+
+&rtc {
+	status = "okay";
+};
+
+&rng1 {
+	status = "okay";
+};