path: root/arch/arm/dts/imx6qdl-smarc-samx6i.dtsi

/*
 * Copyright 2017 (C) Priit Laes <plaes@plaes.org>
 * Copyright 2018 (C) Pengutronix, Michael Grzeschik <mgr@pengutronix.de>
 *
 * Based on initial work by Nikita Yushchenko <nyushchenko at dev.rtsoft.ru>
 *
 * 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 as
 *     published by the Free Software Foundation; either version 2 of
 *     the License, or (at your option) any later version.
 *
 *     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 "AS IS", 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.
 *
 */

#include <dt-bindings/gpio/gpio.h>

/ {
	chosen {
		stdout-path = &uart2;

		environment-spinor {
			compatible = "barebox,environment";
			device-path = &flash_bareboxenv;
			status = "disabled";
		};

		environment-sd4 {
			compatible = "barebox,environment";
			device-path = &usdhc4_bareboxenv;
			status = "disabled";
		};
	};

	reg_3v3_s5: regulator@0 {
		compatible = "regulator-fixed";
		regulator-name = "V_3V3_S5";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_1v8_s5: regulator@1 {
		compatible = "regulator-fixed";
		regulator-name = "V_1V8_S5";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_3v3_s0: regulator@2 {
		compatible = "regulator-fixed";
		regulator-name = "V_3V3_S0";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_1v0_s0: regulator@3 {
		compatible = "regulator-fixed";
		regulator-name = "V_1V0_S0";
		regulator-min-microvolt = <1000000>;
		regulator-max-microvolt = <1000000>;
		regulator-boot-on;
		regulator-always-on;
	};

	i2c_pfuze: i2c-gpio-0 {
		compatible = "i2c-gpio";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_i2c_gpio_0>;
		sda-gpios = <&gpio1 28 0>;
		scl-gpios = <&gpio1 30 0>;
		#address-cells = <1>;
		#size-cells = <0>;
		i2c-gpio,delay-us = <2>;
	};
};

&can1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_flexcan1>;
};

&can2 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_flexcan2>;
};

&fec {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_enet_smarc>;
	phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
	phy-mode = "rgmii";
	status = "okay";
};

&i2c_pfuze {
	pfuze100@08 {
		compatible = "fsl,pfuze100";
		reg = <0x08>;

		/* Looks unused by pfuze100 driver */
		interrupt-parent = <&gpio7>;
		interrupts = <13 IRQ_TYPE_LEVEL_LOW>;

		regulators {
			reg_v_core_s0: sw1ab {
				regulator-name = "V_CORE_S0";
				regulator-min-microvolt = <300000>;
				regulator-max-microvolt = <1875000>;
				regulator-boot-on;
				regulator-always-on;
			};

			reg_vddsoc_s0: sw1c {
				regulator-name = "V_VDDSOC_S0";
				regulator-min-microvolt = <300000>;
				regulator-max-microvolt = <1875000>;
				regulator-boot-on;
				regulator-always-on;
			};

			reg_3v15_s0: sw2 {
				regulator-name = "V_3V15_S0";
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <3300000>;
				regulator-boot-on;
				regulator-always-on;
			};

			/* sw3a/b is used in dual mode, but driver does not
			 * support it? Although, there's no need to control
			 * DDR power - so just leaving dummy entries for sw3a
			 * and sw3b for now.
			 */
			sw3a {
				regulator-min-microvolt = <400000>;
				regulator-max-microvolt = <1975000>;
				regulator-boot-on;
				regulator-always-on;
			};

			sw3b {
				regulator-min-microvolt = <400000>;
				regulator-max-microvolt = <1975000>;
				regulator-boot-on;
				regulator-always-on;
			};

			reg_1v8_s0: sw4 {
				regulator-name = "V_1V8_S0";
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <3300000>;
				regulator-boot-on;
				regulator-always-on;
			};

			/* Regulator for USB */
			reg_5v0_s0: swbst {
				regulator-name = "V_5V0_S0";
				regulator-min-microvolt = <5000000>;
				regulator-max-microvolt = <5150000>;
				regulator-boot-on;
			};

			reg_vsnvs: vsnvs {
				regulator-min-microvolt = <1000000>;
				regulator-max-microvolt = <3000000>;
				regulator-boot-on;
				regulator-always-on;
			};

			reg_vrefddr: vrefddr {
				regulator-boot-on;
				regulator-always-on;
			};

			/* Per schematics, of all VGEN's, only VGEN5 has some
			 * usage ... but even that - over DNI resistor
			 */
			vgen1 {
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <1550000>;
			};

			vgen2 {
				regulator-min-microvolt = <800000>;
				regulator-max-microvolt = <1550000>;
			};

			vgen3 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
			};

			vgen4 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
			};

			reg_2v5_s0: vgen5 {
				regulator-name = "V_2V5_S0";
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
			};

			vgen6 {
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <3300000>;
			};
		};
	};
};

&ecspi4 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_ecspi4>;
	fsl,spi-num-chipselects = <3>;
	cs-gpios = <&gpio3 24 0>, <&gpio3 29 0>, <&gpio3 25 0>;
	status = "okay";

	flash: m25p80@0 {
		compatible = "winbond,w25q16dw", "jedec,spi-nor";
		spi-max-frequency = <20000000>;
		reg = <0>;
		#address-cells = <1>;
		#size-cells = <1>;

		partition@0 {
			label = "bootloader";
			reg = <0x000000 0x0c0000>;
		};

		flash_bareboxenv: partition@c0000 {
			label = "environment";
			reg = <0x0c0000 0x010000>;
		};

		partition@d0000 {
			label = "user";
			reg = <0x0d0000 0x130000>;
		};
	};
};

&i2c3 {
	clock-frequency = <100000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c3>;
};

&pcie {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_pcie>;
	wake-up-gpio = <&gpio6 18 GPIO_ACTIVE_HIGH>;
	reset-gpio = <&gpio3 13 GPIO_ACTIVE_HIGH>;
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart1_smarc>;
	fsl,uart-has-rtscts;
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart2_smarc>;
	status = "okay";
};

&uart4 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart4_smarc>;
	fsl,uart-has-rtscts;
};

&uart5 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart5_smarc>;
};

&usbotg {
	/*
	 * no 'imx6-usb-charger-detection'
	 * since USB_OTG_CHD_B pin is not wired
	 */
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_usbotg>;
	status = "okay";
};

&usbh1 {
	vbus-supply = <&reg_5v0_s0>;
	status = "okay";
};

&usdhc4 {
	/* Internal eMMC, optional on some boards */
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_usdhc4>;
	bus-width = <8>;
	no-1-8-v;
	non-removable;
	status = "okay";
	#address-cells = <1>;
	#size-cells = <1>;

	partition@0 {
		label = "bootloader";
		reg = <0x0 0xe0000>;
	};

	usdhc4_bareboxenv: partition@e0000 {
		label = "environment";
		reg = <0xe0000 0x20000>;
	};
};

&iomuxc {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_boot>;

	pinctrl_boot: boot {
		fsl,pins = <
			/* GPIOS for version and id detection */
			MX6QDL_PAD_NANDF_CLE__GPIO6_IO07	0x80000000
			MX6QDL_PAD_NANDF_WP_B__GPIO6_IO09	0x80000000
			MX6QDL_PAD_NANDF_D2__GPIO2_IO02		0x80000000
		>;
	};

	pinctrl_flexcan1: flexcan1-smarc {
		fsl,pins = <
			MX6QDL_PAD_GPIO_7__FLEXCAN1_TX 0x80000000
			MX6QDL_PAD_GPIO_8__FLEXCAN1_RX 0x80000000
		>;
	};

	pinctrl_flexcan2: flexcan2-smarc {
		fsl,pins = <
			MX6QDL_PAD_KEY_COL4__FLEXCAN2_TX 0x80000000
			MX6QDL_PAD_KEY_ROW4__FLEXCAN2_RX 0x80000000
		>;
	};

	pinctrl_enet_smarc: fecgrp-smarc {
		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
			MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK  0x1b0b0
			MX6QDL_PAD_RGMII_RXC__RGMII_RXC       0x1b0b0
			MX6QDL_PAD_RGMII_RD0__RGMII_RD0       0x1b0b0
			MX6QDL_PAD_RGMII_RD1__RGMII_RD1       0x1b0b0
			MX6QDL_PAD_RGMII_RD2__RGMII_RD2       0x1b0b0
			MX6QDL_PAD_RGMII_RD3__RGMII_RD3       0x1b0b0
			MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b0b0
			MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25    0x80000000
		>;
	};

	pinctrl_i2c_gpio_0: i2c-gpio-0-smarc {
		fsl,pins = <
			/* SCL GPIO */
			MX6QDL_PAD_ENET_TXD0__GPIO1_IO30  0x80000000
			/* SDA GPIO */
			MX6QDL_PAD_ENET_TX_EN__GPIO1_IO28 0x80000000
		>;
	};

	pinctrl_i2c3: i2c3-smarc {
		fsl,pins = <
			MX6QDL_PAD_EIM_D17__I2C3_SCL		0x4001b8b1
			MX6QDL_PAD_EIM_D18__I2C3_SDA		0x4001b8b1
		>;
	};

	pinctrl_ecspi4: ecspi4-smarc {
		fsl,pins = <
			MX6QDL_PAD_EIM_D21__ECSPI4_SCLK 0x80000000
			MX6QDL_PAD_EIM_D28__ECSPI4_MOSI 0x80000000
			MX6QDL_PAD_EIM_D22__ECSPI4_MISO 0x80000000
			MX6QDL_PAD_EIM_D29__ECSPI4_SS0  0x80000000

			/* In hardware, ECSPI4's SS0,SS1,SS3 are wired.
			   But spi-imx driver support only continuous
			   numbering, and only can use GPIOs (and not
			   ECSPI's hardware SS) for CS. So linux view
			   of CS numbers differs from hw view, and
			   pins are configured as GPIOs */

			/* physical - CS2, in linux - CS0, either internal flash or SMARC CS0 */
			MX6QDL_PAD_EIM_D24__GPIO3_IO24 0x80000000
			/* physical - CS0, in linux - CS1, either SMARC CS0 or not-connected */
			MX6QDL_PAD_EIM_D29__GPIO3_IO29 0x80000000
			/* physical - CS3, in linux - CS2, SMARC CS1 */
			MX6QDL_PAD_EIM_D25__GPIO3_IO25 0x80000000
		>;
	};

	pinctrl_pcie: pcie-smarc {
		fsl,pins = <
			/* RST_PCIE_A# */
			MX6QDL_PAD_EIM_DA13__GPIO3_IO13 0x80000000
			/* PCIE_WAKE# */
			MX6QDL_PAD_SD3_DAT6__GPIO6_IO18 0x80000000
		>;
	};

	pinctrl_uart1_smarc: uart1grp-smarc {
		fsl,pins = <
			MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1
			MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0b1
			MX6QDL_PAD_EIM_D20__UART1_RTS_B 0x1b0b1
			MX6QDL_PAD_EIM_D19__UART1_CTS_B 0x1b0b1
		>;
	};

	pinctrl_uart2_smarc: uart2grp-smarc {
		fsl,pins = <
			MX6QDL_PAD_EIM_D27__UART2_RX_DATA 0x1b0b1
			MX6QDL_PAD_EIM_D26__UART2_TX_DATA 0x1b0b1
		>;
	};

	pinctrl_uart4_smarc: uart4grp-smarc {
		fsl,pins = <
			MX6QDL_PAD_CSI0_DAT13__UART4_RX_DATA 0x1b0b1
			MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA 0x1b0b1
			MX6QDL_PAD_CSI0_DAT16__UART4_RTS_B 0x1b0b1
			MX6QDL_PAD_CSI0_DAT17__UART4_CTS_B 0x1b0b1
		>;
	};

	pinctrl_uart5_smarc: uart5grp-smarc {
		fsl,pins = <
			MX6QDL_PAD_CSI0_DAT15__UART5_RX_DATA 0x1b0b1
			MX6QDL_PAD_CSI0_DAT14__UART5_TX_DATA 0x1b0b1
		>;
	};

	pinctrl_usbotg: usbotg-grp-smarc {
		fsl,pins = <
			MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x1f8b0
			/* TODO: Comment out power and OC gpio's for now, since
			 * these are not used by driver
			 */
			/* USB power */
			// MX6QDL_PAD_CSI0_PIXCLK__GPIO5_IO18 0x80000000
			/* USB OC */
			// MX6QDL_PAD_CSI0_DATA_EN__GPIO5_IO20 0x80000000
		>;
	};

	pinctrl_usdhc4: usdhc4grp-smarc {
		fsl,pins = <
			MX6QDL_PAD_SD4_CLK__SD4_CLK 0x17059
			MX6QDL_PAD_SD4_CMD__SD4_CMD 0x17059
			MX6QDL_PAD_SD4_DAT0__SD4_DATA0 0x17059
			MX6QDL_PAD_SD4_DAT1__SD4_DATA1 0x17059
			MX6QDL_PAD_SD4_DAT2__SD4_DATA2 0x17059
			MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x17059
			MX6QDL_PAD_SD4_DAT4__SD4_DATA4 0x17059
			MX6QDL_PAD_SD4_DAT5__SD4_DATA5 0x17059
			MX6QDL_PAD_SD4_DAT6__SD4_DATA6 0x17059
			MX6QDL_PAD_SD4_DAT7__SD4_DATA7 0x17059
		>;
	};
};