[PATCH 1/3] dt-bindings: add vendor prefix for Linux Automation GmbH

[PATCH 1/3] dt-bindings: add vendor prefix for Linux Automation GmbH

[Ahmad Fatoum]

Linux Automation GmbH[0] was founded in 2019 in order to develop
electronics for embedded Linux. Add its vendor prefix so it may be used
in future board and device compatibles.

[0]: https://www.linux-automation.com

Signed-off-by: Robert Schwebel <rsc@linux-automation.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 9e67944bec9c..bef6841428a2 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -561,6 +561,8 @@ patternProperties:
     description: LSI Corp. (LSI Logic)
   "^lwn,.*":
     description: Liebherr-Werk Nenzing GmbH
+  "^lxa,.*":
+    description: Linux Automation GmbH
   "^macnica,.*":
     description: Macnica Americas
   "^mapleboard,.*":
-- 
2.25.0

[PATCH 2/3] ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board

[Ahmad Fatoum]

The Linux Automation MC-1 is a SBC built around the Octavo Systems
OSD32MP15x SiP. The SiP features up to 1 GB DDR3 RAM, EEPROM and
a PMIC. The board has eMMC and a SD slot for storage and GbE
for both connectivity and power.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 arch/arm/boot/dts/Makefile                |   3 +-
 arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts | 367 ++++++++++++++++++++++
 arch/arm/boot/dts/stm32mp15xx-osd32.dtsi  | 229 ++++++++++++++
 3 files changed, 598 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
 create mode 100644 arch/arm/boot/dts/stm32mp15xx-osd32.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d6546d2676b9..47db736ec4aa 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1018,7 +1018,8 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32mp157a-dk1.dtb \
 	stm32mp157c-dk2.dtb \
 	stm32mp157c-ed1.dtb \
-	stm32mp157c-ev1.dtb
+	stm32mp157c-ev1.dtb \
+	stm32mp157c-lxa-mc1.dtb
 dtb-$(CONFIG_MACH_SUN4I) += \
 	sun4i-a10-a1000.dtb \
 	sun4i-a10-ba10-tvbox.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
new file mode 100644
index 000000000000..70fad7a2f2af
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
@@ -0,0 +1,367 @@
+/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
+/*
+ * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2020 Ahmad Fatoum, Pengutronix
+ */
+
+/dts-v1/;
+
+#include "stm32mp157.dtsi"
+#include "stm32mp15xx-osd32.dtsi"
+#include "stm32mp15xxac-pinctrl.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	model = "Linux Automation MC-1 board";
+	compatible = "lxa,stm32mp157c-mc1", "st,stm32mp157";
+
+	aliases {
+		ethernet0 = &ethernet0;
+		mmc0 = &sdmmc1;
+		mmc1 = &sdmmc2;
+		serial0 = &uart4;
+	};
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&backlight_pwm 1 100000 PWM_POLARITY_INVERTED>;
+		brightness-levels = <0 31 63 95 127 159 191 223 255>;
+		default-brightness-level = <7>;
+		power-supply = <&reg_5v2>; /* 3V3_BACKLIGHT */
+	};
+
+	chosen {
+		stdout-path = &uart4;
+	};
+
+	led-act {
+		compatible = "gpio-leds";
+
+		led-green {
+			label = "mc1:green:act";
+			gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+			default-state = "off";
+		};
+	};
+
+	led-rgb {
+		compatible = "pwm-leds";
+
+		led-red {
+			label = "mc1:red:rgb";
+			pwms = <&leds_pwm 1 1000000 0>;
+			max-brightness = <255>;
+			active-low;
+		};
+
+		led-green {
+			label = "mc1:green:rgb";
+			pwms = <&leds_pwm 2 1000000 0>;
+			max-brightness = <255>;
+			active-low;
+		};
+
+		led-blue {
+			label = "mc1:blue:rgb";
+			pwms = <&leds_pwm 3 1000000 0>;
+			max-brightness = <255>;
+			active-low;
+		};
+	};
+
+	panel: panel {
+		compatible = "edt,etm0700g0edh6", "simple-panel";
+		backlight = <&backlight>;
+		enable-gpios = <&gpiod 4 GPIO_ACTIVE_HIGH>;
+		power-supply = <&reg_3v3>;
+
+		port {
+			panel_input: endpoint {
+				remote-endpoint = <&ltdc_ep0_out>;
+			};
+		};
+	};
+
+	reg_3v3: regulator_3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		vin-supply = <&v3v3>;
+	};
+
+	/* supplied by either debug board or PoE */
+	reg_5v2: regulator_5v2 {
+		compatible = "regulator-fixed";
+		regulator-name = "5V2";
+		regulator-min-microvolt = <5200000>;
+		regulator-max-microvolt = <5200000>;
+		regulator-always-on;
+	};
+};
+
+&gpioz {
+	gpio-line-names = "HWID0", "HWID1", "HWID2", "HWID3", "", "",
+			  "HWID4", "HWID5";
+};
+
+&gpu {
+	status = "okay";
+};
+
+&ethernet0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth_rgmii_pins>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy>;
+	status = "okay";
+
+	mdio0 {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy: ethernet-phy@3 { /* KSZ9031RN */
+			reg = <3>;
+			reset-gpios = <&gpiog 0 GPIO_ACTIVE_LOW>; /* ETH_RST# */
+			interrupt-parent = <&gpioa>;
+			interrupts = <6 IRQ_TYPE_EDGE_FALLING>; /* ETH_MDINT# */
+			rxc-skew-ps = <1860>;
+			txc-skew-ps = <1860>;
+			reset-assert-us = <10000>;
+			reset-deassert-us = <300>;
+			micrel,force-master;
+		};
+	};
+};
+
+&i2c5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c5_pins>;
+	clock-frequency = <400000>;
+	status = "okay";
+
+	touchscreen@38 {
+		compatible = "edt,edt-ft5x06";
+		interrupt-parent = <&gpiod>;
+		interrupts = <11 IRQ_TYPE_EDGE_FALLING>; /* TOUCH_INT# */
+		vcc-supply = <&reg_3v3>;
+		reg = <0x38>;
+		reset-gpios = <&gpiof 8 GPIO_ACTIVE_LOW>; /* TOUCH_RESET# */
+		touchscreen-size-x = <1792>;
+		touchscreen-size-y = <1024>;
+		wakeup-source;
+	};
+};
+
+&ltdc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ltdc_pins>;
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&panel_input>;
+		};
+	};
+};
+
+&pmic {
+	regulators {
+		buck4-supply = <&reg_5v2>;	/* VIN */
+		ldo2-supply = <&reg_5v2>;	/* PMIC_LDO25IN */
+		ldo5-supply = <&reg_5v2>;	/* PMIC_LDO25IN */
+		boost-supply = <&reg_5v2>;	/* PMIC_BSTIN */
+		pwr_sw2-supply = <&bst_out>;    /* PMIC_SWIN */
+	};
+};
+
+&sdmmc1 {
+	pinctrl-names = "default", "opendrain";
+	pinctrl-0 = <&sdmmc1_b4_pu_pins_a>;
+	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
+	bus-width = <4>;
+	cd-gpios = <&gpioh 3 GPIO_ACTIVE_LOW>;
+	disable-wp;
+	no-1-8-v;
+	st,neg-edge;
+	vmmc-supply = <&reg_3v3>;
+	status = "okay";
+};
+
+&sdmmc2 {
+	pinctrl-names = "default", "opendrain";
+	pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_b>;
+	pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_b>;
+	bus-width = <8>;
+	no-1-8-v;
+	no-sd;
+	no-sdio;
+	non-removable;
+	st,neg-edge;
+	vmmc-supply = <&reg_3v3>;
+	status = "okay";
+};
+
+&timers3 {
+	status = "okay";
+
+	backlight_pwm: pwm {
+		pinctrl-names = "default";
+		pinctrl-0 = <&tim3_pwm_pins>;
+		status = "okay";
+	};
+};
+
+&timers5 {
+	status = "okay";
+
+	leds_pwm: pwm {
+		pinctrl-names = "default";
+		pinctrl-0 = <&tim5_pwm_pins>;
+		status = "okay";
+	};
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_pins_a>;
+	status = "okay";
+};
+
+&pinctrl {
+	eth_rgmii_pins: eth_rgmii {
+		pins1 {
+			pinmux = <STM32_PINMUX('G',  5, AF11)>, /* ETH_CLK125 */
+				 <STM32_PINMUX('G',  4, AF11)>, /* ETH_GTX_CLK */
+				 <STM32_PINMUX('G', 13, AF11)>, /* ETH_TXD0 */
+				 <STM32_PINMUX('G', 14, AF11)>, /* ETH_TXD1 */
+				 <STM32_PINMUX('C',  2, AF11)>, /* ETH_TXD2 */
+				 <STM32_PINMUX('E',  2, AF11)>, /* ETH_TXD3 */
+				 <STM32_PINMUX('B', 11, AF11)>, /* ETH_TX_CTL */
+				 <STM32_PINMUX('C',  1, AF11)>; /* ETH_MDC */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <2>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('C', 4, AF11)>, /* ETH_RXD0 */
+				 <STM32_PINMUX('C', 5, AF11)>, /* ETH_RXD1 */
+				 <STM32_PINMUX('H', 6, AF11)>, /* ETH_RXD2 */
+				 <STM32_PINMUX('H', 7, AF11)>, /* ETH_RXD3 */
+				 <STM32_PINMUX('A', 1, AF11)>, /* ETH_RX_CLK */
+				 <STM32_PINMUX('A', 7, AF11)>; /* ETH_RX_CTL */
+				 bias-disable;
+		};
+		pins3 {
+			pinmux = <STM32_PINMUX('A', 2, AF11)>; /* ETH_MDIO */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+	};
+
+	i2c5_pins: i2c5 {
+		pins {
+			pinmux = <STM32_PINMUX('D', 0, AF4)>, /* TOUCH_SDA */
+			         <STM32_PINMUX('D', 1, AF4)>; /* TOUCH_SCL */
+			bias-disable;
+			drive-open-drain;
+			slew-rate = <0>;
+		};
+	};
+
+	ltdc_pins: ltdc {
+		pins1 {
+			pinmux = <STM32_PINMUX('B',  1, AF9)>,  /* LTDC_R6 */
+				 <STM32_PINMUX('B',  9, AF14)>, /* LTDC_B7 */
+				 <STM32_PINMUX('C',  0, AF14)>, /* LTDC_R5 */
+				 <STM32_PINMUX('D',  3, AF14)>, /* LTDC_G7 */
+				 <STM32_PINMUX('D',  6, AF14)>, /* LTDC_B2 */
+				 <STM32_PINMUX('D', 10, AF14)>, /* LTDC_B3 */
+				 <STM32_PINMUX('E', 11, AF14)>, /* LTDC_G3 */
+				 <STM32_PINMUX('E', 12, AF14)>, /* LTDC_B4 */
+				 <STM32_PINMUX('E', 13, AF14)>, /* LTDC_DE */
+				 <STM32_PINMUX('E', 15, AF14)>, /* LTDC_R7 */
+				 <STM32_PINMUX('H',  4, AF9)>,  /* LTDC_G5 */
+				 <STM32_PINMUX('H',  8, AF14)>, /* LTDC_R2 */
+				 <STM32_PINMUX('H',  9, AF14)>, /* LTDC_R3 */
+				 <STM32_PINMUX('H', 10, AF14)>, /* LTDC_R4 */
+				 <STM32_PINMUX('H', 13, AF14)>, /* LTDC_G2 */
+				 <STM32_PINMUX('H', 15, AF14)>, /* LTDC_G4 */
+				 <STM32_PINMUX('I',  1, AF14)>, /* LTDC_G6 */
+				 <STM32_PINMUX('I',  5, AF14)>, /* LTDC_B5 */
+				 <STM32_PINMUX('I',  6, AF14)>, /* LTDC_B6 */
+				 <STM32_PINMUX('I',  9, AF14)>, /* LTDC_VSYNC */
+				 <STM32_PINMUX('I', 10, AF14)>; /* LTDC_HSYNC */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('E', 14, AF14)>; /* LTDC_CLK */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <1>;
+		};
+	};
+
+	sdmmc1_b4_pu_pins_a: sdmmc1-pu-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-pull-up;
+		};
+		pins2 {
+			pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
+			slew-rate = <2>;
+			drive-push-pull;
+			bias-pull-up;
+		};
+	};
+
+	sdmmc2_d47_pins_b: sdmmc2-d47-1 {
+		pins {
+			pinmux = <STM32_PINMUX('A', 8, AF9)>,  /* eMMC_D4 */
+				 <STM32_PINMUX('A', 9, AF10)>, /* eMMC_D5 */
+				 <STM32_PINMUX('C', 6, AF10)>, /* eMMC_D6 */
+				 <STM32_PINMUX('C', 7, AF10)>; /* eMMC_D7 */
+			slew-rate = <1>;
+			drive-push-pull;
+			bias-disable;
+		};
+	};
+
+	tim3_pwm_pins: tim3_pwm {
+		pins {
+			pinmux = <STM32_PINMUX('B', 5, AF2)>; /* TIM3_CH2 */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+	};
+
+	tim5_pwm_pins: tim5_pwm {
+		pins {
+			pinmux = <STM32_PINMUX('H', 11, AF2)>, /* TIM5_CH2 */
+				 <STM32_PINMUX('H', 12, AF2)>, /* TIM5_CH3 */
+				 <STM32_PINMUX('I',  0, AF2)>; /* TIM5_CH4 */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <0>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stm32mp15xx-osd32.dtsi b/arch/arm/boot/dts/stm32mp15xx-osd32.dtsi
new file mode 100644
index 000000000000..70ee1c9aa8ec
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp15xx-osd32.dtsi
@@ -0,0 +1,229 @@
+/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
+/*
+ * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
+ * Copyright (C) 2020 Ahmad Fatoum, Pengutronix
+ */
+
+#include "stm32mp15-pinctrl.dtsi"
+
+#include <dt-bindings/mfd/st,stpmic1.h>
+
+/ {
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		mcuram2: mcuram2@10000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10000000 0x40000>;
+			no-map;
+		};
+
+		vdev0vring0: vdev0vring0@10040000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10040000 0x1000>;
+			no-map;
+		};
+
+		vdev0vring1: vdev0vring1@10041000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10041000 0x1000>;
+			no-map;
+		};
+
+		vdev0buffer: vdev0buffer@10042000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10042000 0x4000>;
+			no-map;
+		};
+
+		mcuram: mcuram@30000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x30000000 0x40000>;
+			no-map;
+		};
+
+		retram: retram@38000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x38000000 0x10000>;
+			no-map;
+		};
+	};
+
+	reg_sip_eeprom: regulator_eeprom {
+		compatible = "regulator-fixed";
+		regulator-name = "sip_eeprom";
+		regulator-always-on;
+	};
+};
+
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c4_pins_a>;
+	clock-frequency = <400000>;
+	i2c-scl-rising-time-ns = <185>;
+	i2c-scl-falling-time-ns = <20>;
+	status = "okay";
+
+	pmic: stpmic@33 {
+		compatible = "st,stpmic1";
+		reg = <0x33>;
+		interrupts-extended = <&gpioa 0 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+
+		regulators {
+			compatible = "st,stpmic1-regulators";
+
+			ldo1-supply = <&v3v3>;
+			ldo6-supply = <&v3v3>;
+			pwr_sw1-supply = <&bst_out>;
+
+			vddcore: buck1 {
+				regulator-name = "vddcore";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-initial-mode = <0>;
+				regulator-over-current-protection;
+			};
+
+			vdd_ddr: buck2 {
+				regulator-name = "vdd_ddr";
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+				regulator-initial-mode = <0>;
+				regulator-over-current-protection;
+			};
+
+			vdd: buck3 {
+				regulator-name = "vdd";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+				st,mask-reset;
+				regulator-initial-mode = <0>;
+				regulator-over-current-protection;
+			};
+
+			v3v3: buck4 {
+				regulator-name = "v3v3";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+				regulator-over-current-protection;
+				regulator-initial-mode = <0>;
+			};
+
+			v1v8_audio: ldo1 {
+				regulator-name = "v1v8_audio";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+				interrupts = <IT_CURLIM_LDO1 0>;
+
+			};
+
+			v3v3_hdmi: ldo2 {
+				regulator-name = "v3v3_hdmi";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+				interrupts = <IT_CURLIM_LDO2 0>;
+
+			};
+
+			vtt_ddr: ldo3 {
+				regulator-name = "vtt_ddr";
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <750000>;
+				regulator-always-on;
+				regulator-over-current-protection;
+			};
+
+			vdd_usb: ldo4 {
+				regulator-name = "vdd_usb";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				interrupts = <IT_CURLIM_LDO4 0>;
+			};
+
+			vdda: ldo5 {
+				regulator-name = "vdda";
+				regulator-min-microvolt = <2900000>;
+				regulator-max-microvolt = <2900000>;
+				interrupts = <IT_CURLIM_LDO5 0>;
+				regulator-boot-on;
+			};
+
+			v1v2_hdmi: ldo6 {
+				regulator-name = "v1v2_hdmi";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-always-on;
+				interrupts = <IT_CURLIM_LDO6 0>;
+
+			};
+
+			vref_ddr: vref_ddr {
+				regulator-name = "vref_ddr";
+				regulator-always-on;
+				regulator-over-current-protection;
+			};
+
+			bst_out: boost {
+				regulator-name = "bst_out";
+				interrupts = <IT_OCP_BOOST 0>;
+			};
+
+			vbus_otg: pwr_sw1 {
+				regulator-name = "vbus_otg";
+				interrupts = <IT_OCP_OTG 0>;
+				regulator-active-discharge;
+			};
+
+			vbus_sw: pwr_sw2 {
+				regulator-name = "vbus_sw";
+				interrupts = <IT_OCP_SWOUT 0>;
+				regulator-active-discharge;
+			};
+		};
+
+		onkey {
+			compatible = "st,stpmic1-onkey";
+			interrupts = <IT_PONKEY_F 0>, <IT_PONKEY_R 1>;
+			interrupt-names = "onkey-falling", "onkey-rising";
+		};
+
+		pmic_watchdog: watchdog {
+			compatible = "st,stpmic1-wdt";
+			status = "disabled";
+		};
+	};
+
+	sip_eeprom: eeprom@50 {
+		compatible = "atmel,24c32";
+		vcc-supply = <&reg_sip_eeprom>;
+		reg = <0x50>;
+	};
+};
+
+&ipcc {
+	status = "okay";
+};
+
+&rng1 {
+	status = "okay";
+};
+
+&m4_rproc {
+	memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
+			<&vdev0vring1>, <&vdev0buffer>;
+	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
+	mbox-names = "vq0", "vq1", "shutdown";
+	interrupt-parent = <&exti>;
+	interrupts = <68 1>;
+	status = "okay";
+};
-- 
2.25.0

[PATCH 3/3] dt-bindings: arm: stm32: document lxa,stm32mp157c-mc1 compatible

[Ahmad Fatoum]

Document the STM32MP157 based Linux Automation MC-1 device tree
compatible.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 1fcf306bd2d1..71ea3f04ab9c 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -38,6 +38,7 @@ properties:
       - items:
           - enum:
               - arrow,stm32mp157a-avenger96 # Avenger96
+              - lxa,stm32mp157c-mc1
               - st,stm32mp157c-ed1
               - st,stm32mp157a-dk1
               - st,stm32mp157c-dk2
-- 
2.25.0

Re: [PATCH 2/3] ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board

[Alexandre Torgue]

Hi Ahmad

Thanks for adding a new STM32 board. Some minor comments.

On 2/26/20 3:38 PM, Ahmad Fatoum wrote:
> The Linux Automation MC-1 is a SBC built around the Octavo Systems
> OSD32MP15x SiP. The SiP features up to 1 GB DDR3 RAM, EEPROM and
> a PMIC. The board has eMMC and a SD slot for storage and GbE
> for both connectivity and power.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de
> ---
>   arch/arm/boot/dts/Makefile                |   3 +-
>   arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts | 367 ++++++++++++++++++++++
>   arch/arm/boot/dts/stm32mp15xx-osd32.dtsi  | 229 ++++++++++++++
>   3 files changed, 598 insertions(+), 1 deletion(-)
>   create mode 100644 arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
>   create mode 100644 arch/arm/boot/dts/stm32mp15xx-osd32.dtsi
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index d6546d2676b9..47db736ec4aa 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1018,7 +1018,8 @@ dtb-$(CONFIG_ARCH_STM32) += \
>   	stm32mp157a-dk1.dtb \
>   	stm32mp157c-dk2.dtb \
>   	stm32mp157c-ed1.dtb \
> -	stm32mp157c-ev1.dtb
> +	stm32mp157c-ev1.dtb \
> +	stm32mp157c-lxa-mc1.dtb
>   dtb-$(CONFIG_MACH_SUN4I) += \
>   	sun4i-a10-a1000.dtb \
>   	sun4i-a10-ba10-tvbox.dtb \
> diff --git a/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> new file mode 100644
> index 000000000000..70fad7a2f2af
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp157c-lxa-mc1.dts
> @@ -0,0 +1,367 @@
> +/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
> +/*
> + * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
> + * Copyright (C) 2020 Ahmad Fatoum, Pengutronix
> + */
> +
> +/dts-v1/;
> +
> +#include "stm32mp157.dtsi"
> +#include "stm32mp15xx-osd32.dtsi"
> +#include "stm32mp15xxac-pinctrl.dtsi"
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pwm/pwm.h>
> +
> +/ {
> +	model = "Linux Automation MC-1 board";
> +	compatible = "lxa,stm32mp157c-mc1", "st,stm32mp157";
> +
> +	aliases {
> +		ethernet0 = &ethernet0;
> +		mmc0 = &sdmmc1;
> +		mmc1 = &sdmmc2;
> +		serial0 = &uart4;
> +	};
> +
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&backlight_pwm 1 100000 PWM_POLARITY_INVERTED>;
> +		brightness-levels = <0 31 63 95 127 159 191 223 255>;
> +		default-brightness-level = <7>;
> +		power-supply = <&reg_5v2>; /* 3V3_BACKLIGHT */
> +	};
> +
> +	chosen {
> +		stdout-path = &uart4;
> +	};
> +
> +	led-act {
> +		compatible = "gpio-leds";
> +
> +		led-green {
> +			label = "mc1:green:act";
> +			gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
> +			linux,default-trigger = "heartbeat";
> +			default-state = "off";
> +		};
> +	};
> +
> +	led-rgb {
> +		compatible = "pwm-leds";
> +
> +		led-red {
> +			label = "mc1:red:rgb";
> +			pwms = <&leds_pwm 1 1000000 0>;
> +			max-brightness = <255>;
> +			active-low;
> +		};
> +
> +		led-green {
> +			label = "mc1:green:rgb";
> +			pwms = <&leds_pwm 2 1000000 0>;
> +			max-brightness = <255>;
> +			active-low;
> +		};
> +
> +		led-blue {
> +			label = "mc1:blue:rgb";
> +			pwms = <&leds_pwm 3 1000000 0>;
> +			max-brightness = <255>;
> +			active-low;
> +		};
> +	};
> +
> +	panel: panel {
> +		compatible = "edt,etm0700g0edh6", "simple-panel";
> +		backlight = <&backlight>;
> +		enable-gpios = <&gpiod 4 GPIO_ACTIVE_HIGH>;
> +		power-supply = <&reg_3v3>;
> +
> +		port {
> +			panel_input: endpoint {
> +				remote-endpoint = <&ltdc_ep0_out>;
> +			};
> +		};
> +	};
> +
> +	reg_3v3: regulator_3v3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "3V3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		regulator-always-on;
> +		vin-supply = <&v3v3>;
> +	};
> +
> +	/* supplied by either debug board or PoE */
> +	reg_5v2: regulator_5v2 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "5V2";
> +		regulator-min-microvolt = <5200000>;
> +		regulator-max-microvolt = <5200000>;
> +		regulator-always-on;
> +	};
> +};
> +
> +&gpioz {
> +	gpio-line-names = "HWID0", "HWID1", "HWID2", "HWID3", "", "",
> +			  "HWID4", "HWID5";
> +};
> +
> +&gpu {
> +	status = "okay";
> +};
> +
> +&ethernet0 {

you could follow alphabetic ordering (I find it easier to read, but just 
my opinion).

> +	pinctrl-names = "default";
> +	pinctrl-0 = <&eth_rgmii_pins>;
> +	phy-mode = "rgmii-id";
> +	phy-handle = <&ethphy>;
> +	status = "okay";
> +
> +	mdio0 {
> +		compatible = "snps,dwmac-mdio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		ethphy: ethernet-phy@3 { /* KSZ9031RN */
> +			reg = <3>;
> +			reset-gpios = <&gpiog 0 GPIO_ACTIVE_LOW>; /* ETH_RST# */
> +			interrupt-parent = <&gpioa>;
> +			interrupts = <6 IRQ_TYPE_EDGE_FALLING>; /* ETH_MDINT# */
> +			rxc-skew-ps = <1860>;
> +			txc-skew-ps = <1860>;
> +			reset-assert-us = <10000>;
> +			reset-deassert-us = <300>;
> +			micrel,force-master;
> +		};
> +	};
> +};
> +
> +&i2c5 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c5_pins>;
> +	clock-frequency = <400000>;
> +	status = "okay";
> +
> +	touchscreen@38 {
> +		compatible = "edt,edt-ft5x06";
> +		interrupt-parent = <&gpiod>;
> +		interrupts = <11 IRQ_TYPE_EDGE_FALLING>; /* TOUCH_INT# */
> +		vcc-supply = <&reg_3v3>;
> +		reg = <0x38>;
> +		reset-gpios = <&gpiof 8 GPIO_ACTIVE_LOW>; /* TOUCH_RESET# */
> +		touchscreen-size-x = <1792>;
> +		touchscreen-size-y = <1024>;
> +		wakeup-source;
> +	};
> +};
> +
> +&ltdc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&ltdc_pins>;
> +	status = "okay";
> +
> +	port {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		ltdc_ep0_out: endpoint@0 {
> +			reg = <0>;
> +			remote-endpoint = <&panel_input>;
> +		};
> +	};
> +};
> +
> +&pmic {
> +	regulators {
> +		buck4-supply = <&reg_5v2>;	/* VIN */
> +		ldo2-supply = <&reg_5v2>;	/* PMIC_LDO25IN */
> +		ldo5-supply = <&reg_5v2>;	/* PMIC_LDO25IN */
> +		boost-supply = <&reg_5v2>;	/* PMIC_BSTIN */
> +		pwr_sw2-supply = <&bst_out>;    /* PMIC_SWIN */
> +	};
> +};
> +
> +&sdmmc1 {
> +	pinctrl-names = "default", "opendrain";
> +	pinctrl-0 = <&sdmmc1_b4_pu_pins_a>;
> +	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
> +	bus-width = <4>;
> +	cd-gpios = <&gpioh 3 GPIO_ACTIVE_LOW>;
> +	disable-wp;
> +	no-1-8-v;
> +	st,neg-edge;
> +	vmmc-supply = <&reg_3v3>;
> +	status = "okay";
> +};
> +
> +&sdmmc2 {
> +	pinctrl-names = "default", "opendrain";
> +	pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_b>;
> +	pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_b>;
> +	bus-width = <8>;
> +	no-1-8-v;
> +	no-sd;
> +	no-sdio;
> +	non-removable;
> +	st,neg-edge;
> +	vmmc-supply = <&reg_3v3>;
> +	status = "okay";
> +};
> +
> +&timers3 {
> +	status = "okay";
> +
> +	backlight_pwm: pwm {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tim3_pwm_pins>;
> +		status = "okay";
> +	};
> +};
> +
> +&timers5 {
> +	status = "okay";
> +
> +	leds_pwm: pwm {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&tim5_pwm_pins>;
> +		status = "okay";
> +	};
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart4_pins_a>;
> +	status = "okay";
> +};
> +
> +&pinctrl {

Pin groups are currently defined in stm32mp15-pinctrl.dtsi. You could 
move this part.

> +	eth_rgmii_pins: eth_rgmii {
> +		pins1 {
> +			pinmux = <STM32_PINMUX('G',  5, AF11)>, /* ETH_CLK125 */
> +				 <STM32_PINMUX('G',  4, AF11)>, /* ETH_GTX_CLK */
> +				 <STM32_PINMUX('G', 13, AF11)>, /* ETH_TXD0 */
> +				 <STM32_PINMUX('G', 14, AF11)>, /* ETH_TXD1 */
> +				 <STM32_PINMUX('C',  2, AF11)>, /* ETH_TXD2 */
> +				 <STM32_PINMUX('E',  2, AF11)>, /* ETH_TXD3 */
> +				 <STM32_PINMUX('B', 11, AF11)>, /* ETH_TX_CTL */
> +				 <STM32_PINMUX('C',  1, AF11)>; /* ETH_MDC */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <2>;
> +		};
> +		pins2 {
> +			pinmux = <STM32_PINMUX('C', 4, AF11)>, /* ETH_RXD0 */
> +				 <STM32_PINMUX('C', 5, AF11)>, /* ETH_RXD1 */
> +				 <STM32_PINMUX('H', 6, AF11)>, /* ETH_RXD2 */
> +				 <STM32_PINMUX('H', 7, AF11)>, /* ETH_RXD3 */
> +				 <STM32_PINMUX('A', 1, AF11)>, /* ETH_RX_CLK */
> +				 <STM32_PINMUX('A', 7, AF11)>; /* ETH_RX_CTL */
> +				 bias-disable;
> +		};
> +		pins3 {
> +			pinmux = <STM32_PINMUX('A', 2, AF11)>; /* ETH_MDIO */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <0>;
> +		};
> +	};
> +
> +	i2c5_pins: i2c5 {
> +		pins {
> +			pinmux = <STM32_PINMUX('D', 0, AF4)>, /* TOUCH_SDA */
> +			         <STM32_PINMUX('D', 1, AF4)>; /* TOUCH_SCL */
> +			bias-disable;
> +			drive-open-drain;
> +			slew-rate = <0>;
> +		};
> +	};
> +
> +	ltdc_pins: ltdc {
> +		pins1 {
> +			pinmux = <STM32_PINMUX('B',  1, AF9)>,  /* LTDC_R6 */
> +				 <STM32_PINMUX('B',  9, AF14)>, /* LTDC_B7 */
> +				 <STM32_PINMUX('C',  0, AF14)>, /* LTDC_R5 */
> +				 <STM32_PINMUX('D',  3, AF14)>, /* LTDC_G7 */
> +				 <STM32_PINMUX('D',  6, AF14)>, /* LTDC_B2 */
> +				 <STM32_PINMUX('D', 10, AF14)>, /* LTDC_B3 */
> +				 <STM32_PINMUX('E', 11, AF14)>, /* LTDC_G3 */
> +				 <STM32_PINMUX('E', 12, AF14)>, /* LTDC_B4 */
> +				 <STM32_PINMUX('E', 13, AF14)>, /* LTDC_DE */
> +				 <STM32_PINMUX('E', 15, AF14)>, /* LTDC_R7 */
> +				 <STM32_PINMUX('H',  4, AF9)>,  /* LTDC_G5 */
> +				 <STM32_PINMUX('H',  8, AF14)>, /* LTDC_R2 */
> +				 <STM32_PINMUX('H',  9, AF14)>, /* LTDC_R3 */
> +				 <STM32_PINMUX('H', 10, AF14)>, /* LTDC_R4 */
> +				 <STM32_PINMUX('H', 13, AF14)>, /* LTDC_G2 */
> +				 <STM32_PINMUX('H', 15, AF14)>, /* LTDC_G4 */
> +				 <STM32_PINMUX('I',  1, AF14)>, /* LTDC_G6 */
> +				 <STM32_PINMUX('I',  5, AF14)>, /* LTDC_B5 */
> +				 <STM32_PINMUX('I',  6, AF14)>, /* LTDC_B6 */
> +				 <STM32_PINMUX('I',  9, AF14)>, /* LTDC_VSYNC */
> +				 <STM32_PINMUX('I', 10, AF14)>; /* LTDC_HSYNC */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <0>;
> +		};
> +		pins2 {
> +			pinmux = <STM32_PINMUX('E', 14, AF14)>; /* LTDC_CLK */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <1>;
> +		};
> +	};
> +
> +	sdmmc1_b4_pu_pins_a: sdmmc1-pu-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-pull-up;
> +		};
> +		pins2 {
> +			pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
> +			slew-rate = <2>;
> +			drive-push-pull;
> +			bias-pull-up;
> +		};
> +	};
> +
> +	sdmmc2_d47_pins_b: sdmmc2-d47-1 {
> +		pins {
> +			pinmux = <STM32_PINMUX('A', 8, AF9)>,  /* eMMC_D4 */
> +				 <STM32_PINMUX('A', 9, AF10)>, /* eMMC_D5 */
> +				 <STM32_PINMUX('C', 6, AF10)>, /* eMMC_D6 */
> +				 <STM32_PINMUX('C', 7, AF10)>; /* eMMC_D7 */
> +			slew-rate = <1>;
> +			drive-push-pull;
> +			bias-disable;
> +		};
> +	};
> +
> +	tim3_pwm_pins: tim3_pwm {
> +		pins {
> +			pinmux = <STM32_PINMUX('B', 5, AF2)>; /* TIM3_CH2 */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <0>;
> +		};
> +	};
> +
> +	tim5_pwm_pins: tim5_pwm {
> +		pins {
> +			pinmux = <STM32_PINMUX('H', 11, AF2)>, /* TIM5_CH2 */
> +				 <STM32_PINMUX('H', 12, AF2)>, /* TIM5_CH3 */
> +				 <STM32_PINMUX('I',  0, AF2)>; /* TIM5_CH4 */
> +			bias-disable;
> +			drive-push-pull;
> +			slew-rate = <0>;
> +		};
> +	};
> +};
> diff --git a/arch/arm/boot/dts/stm32mp15xx-osd32.dtsi b/arch/arm/boot/dts/stm32mp15xx-osd32.dtsi
> new file mode 100644
> index 000000000000..70ee1c9aa8ec
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp15xx-osd32.dtsi
> @@ -0,0 +1,229 @@
> +/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause) */
> +/*
> + * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
> + * Copyright (C) 2020 Ahmad Fatoum, Pengutronix
> + */
> +
> +#include "stm32mp15-pinctrl.dtsi"
> +
> +#include <dt-bindings/mfd/st,stpmic1.h>
> +
> +/ {
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		mcuram2: mcuram2@10000000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10000000 0x40000>;
> +			no-map;
> +		};
> +
> +		vdev0vring0: vdev0vring0@10040000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10040000 0x1000>;
> +			no-map;
> +		};
> +
> +		vdev0vring1: vdev0vring1@10041000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10041000 0x1000>;
> +			no-map;
> +		};
> +
> +		vdev0buffer: vdev0buffer@10042000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10042000 0x4000>;
> +			no-map;
> +		};
> +
> +		mcuram: mcuram@30000000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x30000000 0x40000>;
> +			no-map;
> +		};
> +
> +		retram: retram@38000000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x38000000 0x10000>;
> +			no-map;
> +		};
> +	};
> +
> +	reg_sip_eeprom: regulator_eeprom {
> +		compatible = "regulator-fixed";
> +		regulator-name = "sip_eeprom";
> +		regulator-always-on;
> +	};
> +};
> +
> +&i2c4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c4_pins_a>;
> +	clock-frequency = <400000>;
> +	i2c-scl-rising-time-ns = <185>;
> +	i2c-scl-falling-time-ns = <20>;
> +	status = "okay";
> +
> +	pmic: stpmic@33 {
> +		compatible = "st,stpmic1";
> +		reg = <0x33>;
> +		interrupts-extended = <&gpioa 0 IRQ_TYPE_EDGE_FALLING>;
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +
> +		regulators {
> +			compatible = "st,stpmic1-regulators";
> +
> +			ldo1-supply = <&v3v3>;
> +			ldo6-supply = <&v3v3>;
> +			pwr_sw1-supply = <&bst_out>;
> +
> +			vddcore: buck1 {
> +				regulator-name = "vddcore";
> +				regulator-min-microvolt = <1200000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-always-on;
> +				regulator-initial-mode = <0>;
> +				regulator-over-current-protection;
> +			};
> +
> +			vdd_ddr: buck2 {
> +				regulator-name = "vdd_ddr";
> +				regulator-min-microvolt = <1350000>;
> +				regulator-max-microvolt = <1350000>;
> +				regulator-always-on;
> +				regulator-initial-mode = <0>;
> +				regulator-over-current-protection;
> +			};
> +
> +			vdd: buck3 {
> +				regulator-name = "vdd";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				st,mask-reset;
> +				regulator-initial-mode = <0>;
> +				regulator-over-current-protection;
> +			};
> +
> +			v3v3: buck4 {
> +				regulator-name = "v3v3";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				regulator-over-current-protection;
> +				regulator-initial-mode = <0>;
> +			};
> +
> +			v1v8_audio: ldo1 {
> +				regulator-name = "v1v8_audio";
> +				regulator-min-microvolt = <1800000>;
> +				regulator-max-microvolt = <1800000>;
> +				regulator-always-on;
> +				interrupts = <IT_CURLIM_LDO1 0>;
> +
> +			};
> +
> +			v3v3_hdmi: ldo2 {
> +				regulator-name = "v3v3_hdmi";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				regulator-always-on;
> +				interrupts = <IT_CURLIM_LDO2 0>;
> +
> +			};
> +
> +			vtt_ddr: ldo3 {
> +				regulator-name = "vtt_ddr";
> +				regulator-min-microvolt = <500000>;
> +				regulator-max-microvolt = <750000>;
> +				regulator-always-on;
> +				regulator-over-current-protection;
> +			};
> +
> +			vdd_usb: ldo4 {
> +				regulator-name = "vdd_usb";
> +				regulator-min-microvolt = <3300000>;
> +				regulator-max-microvolt = <3300000>;
> +				interrupts = <IT_CURLIM_LDO4 0>;
> +			};
> +
> +			vdda: ldo5 {
> +				regulator-name = "vdda";
> +				regulator-min-microvolt = <2900000>;
> +				regulator-max-microvolt = <2900000>;
> +				interrupts = <IT_CURLIM_LDO5 0>;
> +				regulator-boot-on;
> +			};
> +
> +			v1v2_hdmi: ldo6 {
> +				regulator-name = "v1v2_hdmi";
> +				regulator-min-microvolt = <1200000>;
> +				regulator-max-microvolt = <1200000>;
> +				regulator-always-on;
> +				interrupts = <IT_CURLIM_LDO6 0>;
> +
> +			};
> +
> +			vref_ddr: vref_ddr {
> +				regulator-name = "vref_ddr";
> +				regulator-always-on;
> +				regulator-over-current-protection;
> +			};
> +
> +			bst_out: boost {
> +				regulator-name = "bst_out";
> +				interrupts = <IT_OCP_BOOST 0>;
> +			};
> +
> +			vbus_otg: pwr_sw1 {
> +				regulator-name = "vbus_otg";
> +				interrupts = <IT_OCP_OTG 0>;
> +				regulator-active-discharge;
> +			};
> +
> +			vbus_sw: pwr_sw2 {
> +				regulator-name = "vbus_sw";
> +				interrupts = <IT_OCP_SWOUT 0>;
> +				regulator-active-discharge;
> +			};
> +		};
> +
> +		onkey {
> +			compatible = "st,stpmic1-onkey";
> +			interrupts = <IT_PONKEY_F 0>, <IT_PONKEY_R 1>;
> +			interrupt-names = "onkey-falling", "onkey-rising";
> +		};
> +
> +		pmic_watchdog: watchdog {
> +			compatible = "st,stpmic1-wdt";
> +			status = "disabled";
> +		};
> +	};
> +
> +	sip_eeprom: eeprom@50 {
> +		compatible = "atmel,24c32";
> +		vcc-supply = <&reg_sip_eeprom>;
> +		reg = <0x50>;
> +	};
> +};
> +
> +&ipcc {
> +	status = "okay";
> +};
> +
> +&rng1 {
> +	status = "okay";
> +};
> +
> +&m4_rproc {

you could follow alphabetic ordering.

> +	memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
> +			<&vdev0vring1>, <&vdev0buffer>;
> +	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
> +	mbox-names = "vq0", "vq1", "shutdown";
> +	interrupt-parent = <&exti>;
> +	interrupts = <68 1>;
> +	status = "okay";
> +};
> 

Re: [PATCH 2/3] ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board

[Lucas Stach]

On Mo, 2020-03-02 at 11:06 +0100, Alexandre Torgue wrote:
> Hi Ahmad
> 
> Thanks for adding a new STM32 board. Some minor comments.
> 
> On 2/26/20 3:38 PM, Ahmad Fatoum wrote:
> > The Linux Automation MC-1 is a SBC built around the Octavo Systems
> > OSD32MP15x SiP. The SiP features up to 1 GB DDR3 RAM, EEPROM and
> > a PMIC. The board has eMMC and a SD slot for storage and GbE
> > for both connectivity and power.
> > 
> > Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de
> > ---
[...]
> > +
> > +&gpu {
> > +	status = "okay";
> > +};

This question is more to the ST guys than this specific DT: Why is the
GPU marked as disabled in the SoC dtsi file? This device is always
present on the SoC and AFAICS there are no board level dependencies, so
there is no reason to have it disabled by default, right? Removing the
status property from the dtsi would remove the need for this override
on the board DT.

Regards,
Lucas

Re: [PATCH 2/3] ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board

[Alexandre Torgue]

Hi Lucas

On 3/2/20 11:18 AM, Lucas Stach wrote:
> On Mo, 2020-03-02 at 11:06 +0100, Alexandre Torgue wrote:
>> Hi Ahmad
>>
>> Thanks for adding a new STM32 board. Some minor comments.
>>
>> On 2/26/20 3:38 PM, Ahmad Fatoum wrote:
>>> The Linux Automation MC-1 is a SBC built around the Octavo Systems
>>> OSD32MP15x SiP. The SiP features up to 1 GB DDR3 RAM, EEPROM and
>>> a PMIC. The board has eMMC and a SD slot for storage and GbE
>>> for both connectivity and power.
>>>
>>> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de
>>> ---
> [...]
>>> +
>>> +&gpu {
>>> +	status = "okay";
>>> +};
> 
> This question is more to the ST guys than this specific DT: Why is the
> GPU marked as disabled in the SoC dtsi file? This device is always
> present on the SoC and AFAICS there are no board level dependencies, so
> there is no reason to have it disabled by default, right? Removing the
> status property from the dtsi would remove the need for this override
> on the board DT.

You are right. With new stm32 device tree diversity, it makes no longer 
sens to disable GPU node in stm32mp157 dtsi file. Indeed, we use now 
dedicated files for each SoC (stm32mp151 / stm32mp153 /stm32mp157).

Ahmad, can you add this modification in your series please ?

regards
Alex


> 
> Regards,
> Lucas
> 

Re: [PATCH 2/3] ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board

[Ahmad Fatoum]

Hello,

On 3/2/20 11:06 AM, Alexandre Torgue wrote:
>> +&ethernet0 {
> 
> you could follow alphabetic ordering (I find it easier to read, but just my opinion).

>> +&pinctrl {
> 
> Pin groups are currently defined in stm32mp15-pinctrl.dtsi. You could move this part.

>> +&m4_rproc {
> 
> you could follow alphabetic ordering.

Will do.

Cheers,
Ahmad

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

Re: [PATCH 2/3] ARM: dts: stm32: add STM32MP1-based Linux Automation MC-1 board

[Ahmad Fatoum]

Hi,

On 3/2/20 11:29 AM, Alexandre Torgue wrote:
> On 3/2/20 11:18 AM, Lucas Stach wrote:
>> On Mo, 2020-03-02 at 11:06 +0100, Alexandre Torgue wrote:
>>>> +
>>>> +&gpu {
>>>> +    status = "okay";
>>>> +};
>>
>> This question is more to the ST guys than this specific DT: Why is the
>> GPU marked as disabled in the SoC dtsi file? This device is always
>> present on the SoC and AFAICS there are no board level dependencies, so
>> there is no reason to have it disabled by default, right? Removing the
>> status property from the dtsi would remove the need for this override
>> on the board DT.
> 
> You are right. With new stm32 device tree diversity, it makes no longer sens to disable GPU node in stm32mp157 dtsi file. Indeed, we use now dedicated files for each SoC (stm32mp151 / stm32mp153 /stm32mp157).
> 
> Ahmad, can you add this modification in your series please ?

Will preprend it to v2.

Cheers,
Ahmad

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

Re: [PATCH 1/3] dt-bindings: add vendor prefix for Linux Automation GmbH

[Rob Herring]

On Wed, 26 Feb 2020 15:38:23 +0100, Ahmad Fatoum wrote:
> Linux Automation GmbH[0] was founded in 2019 in order to develop
> electronics for embedded Linux. Add its vendor prefix so it may be used
> in future board and device compatibles.
> 
> [0]: https://www.linux-automation.com
> 
> Signed-off-by: Robert Schwebel <rsc@linux-automation.com>
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

Re: [PATCH 3/3] dt-bindings: arm: stm32: document lxa,stm32mp157c-mc1 compatible

[Rob Herring]

On Wed, 26 Feb 2020 15:38:25 +0100, Ahmad Fatoum wrote:
> Document the STM32MP157 based Linux Automation MC-1 device tree
> compatible.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>  Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 

Acked-by: Rob Herring <robh@kernel.org>