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Date:	Tue, 12 Apr 2016 17:06:59 +0300
From:	Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
To:	Sergio Prado <sergio.prado@...abworks.com>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<linux@....linux.org.uk>, <shawnguo@...nel.org>,
	<kernel@...gutronix.de>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] ARM: dts: imx6: Add dts for Embest MarS Board

Hi Sergio,

On 12.04.2016 03:25, Sergio Prado wrote:
> Embest MarS Board [1] is a multi-core platform based on Freescale i.MX6
> Cortex-A9 Dual Core, running up to 1GHz with 1 GB of RAM, 4GB of eMMC
> and with a 4MB SPI flash.
> 
> [1] http://www.embest-tech.com/shop/star/marsboard.html
> 
> Signed-off-by: Sergio Prado <sergio.prado@...abworks.com>
> ---
> 
> Changes v1 -> v2:
> - Makefile entry added.
> 
> ---
>  arch/arm/boot/dts/Makefile            |   1 +
>  arch/arm/boot/dts/imx6q-marsboard.dts | 411 ++++++++++++++++++++++++++++++++++
>  2 files changed, 412 insertions(+)
>  create mode 100644 arch/arm/boot/dts/imx6q-marsboard.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 95c1923ce6fa..04b87ea75f2f 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -346,6 +346,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
>  	imx6q-gw552x.dtb \
>  	imx6q-hummingboard.dtb \
>  	imx6q-icore-rqs.dtb \
> +	imx6q-marsboard.dtb \
>  	imx6q-nitrogen6x.dtb \
>  	imx6q-nitrogen6_max.dtb \
>  	imx6q-novena.dtb \
> diff --git a/arch/arm/boot/dts/imx6q-marsboard.dts b/arch/arm/boot/dts/imx6q-marsboard.dts
> new file mode 100644
> index 000000000000..96b8736b90f8
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6q-marsboard.dts
> @@ -0,0 +1,411 @@
> +/*
> + * Copyright (C) 2016 Sergio Prado (sergio.prado@...abworks.com)
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License
> + *     version 2 as published by the Free Software Foundation.
> + *
> + *     This file is distributed in the hope that it will be useful
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + * Or, alternatively
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +#include "imx6q.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/ {
> +	model = "Embest MarS Board i.MX6Dual";
> +	compatible = "embest,imx6q-marsboard", "fsl,imx6dl";
> +
> +	memory {
> +		reg = <0x10000000 0x40000000>;
> +	};
> +
> +	regulators {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		reg_3p3v: regulator@1 {
> +			compatible = "regulator-fixed";
> +			reg = <1>;
> +			regulator-name = "3P3V";
> +			regulator-min-microvolt = <3300000>;
> +			regulator-max-microvolt = <3300000>;
> +		};
> +
> +		reg_usb_otg_vbus: regulator@2 {
> +			compatible = "regulator-fixed";
> +			reg = <2>;
> +			regulator-name = "usb_otg_vbus";
> +			regulator-min-microvolt = <5000000>;
> +			regulator-max-microvolt = <5000000>;
> +			gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_led>;
> +
> +		led@1 {

the outcome of one recent discussion is that a unit-address component of
the name is used only if there is a reg property, which is not the case
here.

> +			label = "imx6:green:user1";
> +			gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +			linux,default-trigger = "heartbeat";
> +		};
> +
> +		led@2 {

Same as above.

> +			label = "imx6:green:user2";
> +			gpios = <&gpio3 28 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +	};
> +};
> +
> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart1>;
> +	status = "okay";
> +};
> +
> +&uart2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart2>;
> +	status = "okay";
> +};
> +
> +&uart3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart3>;
> +	status = "okay";
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart4>;
> +	status = "okay";
> +};
> +
> +&uart5 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart5>;
> +	status = "okay";
> +};
> +
> +&fec {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_enet>;
> +	phy-mode = "rgmii";
> +	phy-reset-gpios = <&gpio3 31 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};
> +
> +&usdhc2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usdhc2>;
> +	vmmc-supply = <&reg_3p3v>;
> +	cd-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
> +	wp-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
> +	status = "okay";
> +};
> +
> +&usdhc3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usdhc3>;
> +	vmmc-supply = <&reg_3p3v>;
> +	non-removable;
> +	status = "okay";
> +};
> +
> +&i2c1 {
> +	clock-frequency = <100000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c1>;
> +	status = "okay";
> +};
> +
> +&i2c2 {
> +	clock-frequency = <100000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c2>;
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	clock-frequency = <100000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c3>;
> +	status = "okay";
> +};
> +
> +&ecspi1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_ecspi1>;
> +	cs-gpios = <&gpio2 30 GPIO_ACTIVE_LOW>;
> +	fsl,spi-num-chipselects = <1>;
> +	status = "okay";
> +
> +	m25p80@0 {
> +		compatible = "microchip,sst25vf016b";
> +		spi-max-frequency = <20000000>;
> +		reg = <0>;
> +	};
> +};
> +
> +&pwm1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm1>;
> +	status = "okay";
> +};
> +
> +&pwm2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm2>;
> +	status = "okay";
> +};
> +
> +&pwm3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm3>;
> +	status = "okay";
> +};
> +
> +&pwm4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm4>;
> +	status = "okay";
> +};
> +
> +&usbh1 {
> +	dr_mode = "host";
> +	disable-over-current;
> +	status = "okay";
> +};
> +
> +&usbotg {
> +	vbus-supply = <&reg_usb_otg_vbus>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_usbotg>;
> +	dr_mode = "otg";
> +	disable-over-current;
> +	status = "okay";
> +};
> +
> +&hdmi {
> +	ddc-i2c-bus = <&i2c2>;
> +	status = "okay";
> +};
> +
> +&audmux {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_audmux>;
> +	status = "okay";
> +};
> +
> +&iomuxc {
> +	imx6-riotboard {

Copy pasted board name?

> +		pinctrl_uart1: uart1grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA	0x1b0b1
> +				MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA	0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_uart2: uart2grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_EIM_D26__UART2_TX_DATA	0x1b0b1
> +				MX6QDL_PAD_EIM_D27__UART2_RX_DATA	0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_uart3: uart3grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_EIM_D24__UART3_TX_DATA	0x1b0b1
> +				MX6QDL_PAD_EIM_D25__UART3_RX_DATA	0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_uart4: uart4grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_KEY_COL0__UART4_TX_DATA	0x1b0b1
> +				MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA	0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_uart5: uart5grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_KEY_COL1__UART5_TX_DATA	0x1b0b1
> +				MX6QDL_PAD_KEY_ROW1__UART5_RX_DATA	0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_enet: enetgrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
> +				MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
> +				MX6QDL_PAD_RGMII_TXC__RGMII_TXC		0x1b0b0
> +				MX6QDL_PAD_RGMII_TD0__RGMII_TD0		0x1b0b0
> +				MX6QDL_PAD_RGMII_TD1__RGMII_TD1		0x1b0b0
> +				MX6QDL_PAD_RGMII_TD2__RGMII_TD2		0x1b0b0
> +				MX6QDL_PAD_RGMII_TD3__RGMII_TD3		0x1b0b0
> +				MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL	0x1b0b0
> +				/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
> +				MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK	0x0a0b1
> +				/* AR8035 pin strapping: IO voltage: pull up */
> +				MX6QDL_PAD_RGMII_RXC__RGMII_RXC		0x1b0b0
> +				/* AR8035 pin strapping: PHYADDR#0: pull down */
> +				MX6QDL_PAD_RGMII_RD0__RGMII_RD0		0x130b0
> +				/* AR8035 pin strapping: PHYADDR#1: pull down */
> +				MX6QDL_PAD_RGMII_RD1__RGMII_RD1		0x130b0
> +				/* AR8035 pin strapping: MODE#1: pull up */
> +				MX6QDL_PAD_RGMII_RD2__RGMII_RD2		0x1b0b0
> +				/* AR8035 pin strapping: MODE#3: pull up */
> +				MX6QDL_PAD_RGMII_RD3__RGMII_RD3		0x1b0b0
> +				/* AR8035 pin strapping: MODE#0: pull down */
> +				MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL	0x130b0
> +				/* GPIO16 -> AR8035 25MHz */
> +				MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x4001b0a8
> +				/* RGMII_nRST */
> +				MX6QDL_PAD_EIM_D31__GPIO3_IO31		0x130b0
> +				/* AR8035 interrupt */
> +				MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28	0x180b0
> +			>;
> +		};
> +
> +		pinctrl_led: ledgrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_EIM_A25__GPIO5_IO02		0x1b0b1	/* LED0 */
> +				MX6QDL_PAD_EIM_D28__GPIO3_IO28		0x1b0b1	/* LED1 */
> +			>;
> +		};
> +
> +		pinctrl_usdhc2: usdhc2grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_SD2_CMD__SD2_CMD		0x17059
> +				MX6QDL_PAD_SD2_CLK__SD2_CLK		0x10059
> +				MX6QDL_PAD_SD2_DAT0__SD2_DATA0		0x17059
> +				MX6QDL_PAD_SD2_DAT1__SD2_DATA1		0x17059
> +				MX6QDL_PAD_SD2_DAT2__SD2_DATA2		0x17059
> +				MX6QDL_PAD_SD2_DAT3__SD2_DATA3		0x17059
> +				MX6QDL_PAD_GPIO_4__GPIO1_IO04		0x1b0b0	/* CD */
> +				MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x1f0b0	/* WP */
> +			>;
> +		};
> +
> +		pinctrl_usdhc3: usdhc3grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17009
> +				MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10009
> +				MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17009
> +				MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17009
> +				MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17009
> +				MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17009
> +				MX6QDL_PAD_SD3_RST__SD3_RESET		0x17009
> +			>;
> +		};
> +
> +		pinctrl_i2c1: i2c1grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_CSI0_DAT8__I2C1_SDA		0x4001b8b1
> +				MX6QDL_PAD_CSI0_DAT9__I2C1_SCL		0x4001b8b1
> +			>;
> +		};
> +
> +		pinctrl_i2c2: i2c2grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_KEY_COL3__I2C2_SCL		0x4001b8b1
> +				MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
> +			>;
> +		};
> +
> +		pinctrl_i2c3: i2c3grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_GPIO_5__I2C3_SCL		0x4001b8b1
> +				MX6QDL_PAD_GPIO_6__I2C3_SDA		0x4001b8b1
> +			>;
> +		};
> +
> +		pinctrl_ecspi1: ecspi1grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_EIM_D16__ECSPI1_SCLK		0x100b1
> +				MX6QDL_PAD_EIM_D17__ECSPI1_MISO		0x100b1
> +				MX6QDL_PAD_EIM_D18__ECSPI1_MOSI		0x100b1
> +				MX6QDL_PAD_EIM_EB2__GPIO2_IO30		0x000b1	/* CS0 */
> +			>;
> +		};
> +
> +		pinctrl_pwm1: pwm1grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT8__PWM1_OUT		0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_pwm2: pwm2grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_DISP0_DAT9__PWM2_OUT		0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_pwm3: pwm3grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_SD1_DAT1__PWM3_OUT		0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_pwm4: pwm4grp {
> +			fsl,pins = <
> +				MX6QDL_PAD_SD1_CMD__PWM4_OUT		0x1b0b1
> +			>;
> +		};
> +
> +		pinctrl_usbotg: usbotggrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID	0x17059
> +				MX6QDL_PAD_EIM_D21__USB_OTG_OC		0x1b0b0
> +				MX6QDL_PAD_EIM_D22__GPIO3_IO22		0x000b0	/* USB OTG POWER ENABLE */
> +			>;
> +		};
> +
> +		pinctrl_audmux: audmuxgrp {
> +			fsl,pins = <
> +				MX6QDL_PAD_CSI0_DAT7__AUD3_RXD		0x130b0
> +				MX6QDL_PAD_CSI0_DAT4__AUD3_TXC		0x130b0
> +				MX6QDL_PAD_CSI0_DAT5__AUD3_TXD		0x110b0
> +				MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS		0x130b0
> +				MX6QDL_PAD_GPIO_0__CCM_CLKO1		0x130b0	/* CAM_MCLK */
> +			>;
> +		};
> +	};
> +};
> 

--
With best wishes,
Vladimir

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