Commit 21683c0d authored by Andreas Kemnade's avatar Andreas Kemnade Committed by Shawn Guo
Browse files

ARM: dts: imx: Add devicetree for Kobo Aura 2 



This adds a devicetree for the Kobo Aura 2 Ebook reader. It is based
on boards marked with "37NB-E60QL0+4B1". It is equipped with an i.MX6SL
SoC.

Expected to work:
  - Buttons
  - Wifi (with external module)
  - LED
  - uSD
  - USB
  - RTC
  - Fuel Gauge
  - Backlight (if the required regulator is probed before the backlight,
    specifying a supply is not supported by backlightdriver)

Signed-off-by: default avatarAndreas Kemnade <andreas@kemnade.info>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 9abf2313

arch/arm/boot/dts/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -681,6 +681,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \ 
	imx6s-dhcom-drc02.dtb

dtb-$(CONFIG_SOC_IMX6SL) += \

	imx6sl-evk.dtb \

	imx6sl-kobo-aura2.dtb \

	imx6sl-tolino-shine2hd.dtb \

	imx6sl-tolino-shine3.dtb \

	imx6sl-tolino-vision5.dtb \

arch/arm/boot/dts/imx6sl-kobo-aura2.dts

0 → 100644
+555 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Device tree for the Kobo Aura 2 ebook reader

 *

 * Name on mainboard is: 37NB-E60QL0+4B1

 * Serials start with: E60QL2

 *

 * Copyright 2022 Andreas Kemnade

 */



/dts-v1/;



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

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

#include <dt-bindings/leds/common.h>

#include "imx6sl.dtsi"



/ {

	model = "Kobo Aura 2";

	compatible = "kobo,aura2", "fsl,imx6sl";



	aliases {

		mmc0 = &usdhc2;

		mmc1 = &usdhc3;

	};



	chosen {

		stdout-path = &uart1;

	};



	gpio_keys: gpio-keys {

		compatible = "gpio-keys";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_gpio_keys>;



		key-cover {

			label = "Cover";

			gpios = <&gpio5 12 GPIO_ACTIVE_LOW>;

			linux,code = <SW_LID>;

			linux,input-type = <EV_SW>;

			wakeup-source;

		};



		key-power {

			label = "Power";

			gpios = <&gpio5 8 GPIO_ACTIVE_LOW>;

			linux,code = <KEY_POWER>;

			wakeup-source;

		};

	};



	leds: leds {

		compatible = "gpio-leds";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_led>;



		led-0 {

			label = "koboaura2:white:on";

			gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;

			color = <LED_COLOR_ID_WHITE>;

			linux,default-trigger = "timer";

		};

	};



	memory@80000000 {

		device_type = "memory";

		reg = <0x80000000 0x10000000>;

	};



	reg_wifi: regulator-wifi {

		compatible = "regulator-fixed";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_wifi_power>;

		regulator-name = "SD3_SPWR";

		regulator-min-microvolt = <3000000>;

		regulator-max-microvolt = <3000000>;

		gpio = <&gpio4 29 GPIO_ACTIVE_LOW>;

	};



	wifi_pwrseq: wifi-pwrseq {

		compatible = "mmc-pwrseq-simple";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_wifi_reset>;

		post-power-on-delay-ms = <20>;

		reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;

	};

};



&i2c1 {

	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&pinctrl_i2c1>;

	pinctrl-1 = <&pinctrl_i2c1_sleep>;

	status = "okay";



	lm3630a: backlight@36 {

		compatible = "ti,lm3630a";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_lm3630a_bl_gpio>;

		reg = <0x36>;

		enable-gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>;



		#address-cells = <1>;

		#size-cells = <0>;



		led@0 {

			reg = <0>;

			led-sources = <0>;

			label = "backlight";

			default-brightness = <0>;

			max-brightness = <255>;

		};

	};

};



&i2c2 {

	pinctrl-names = "default", "sleep";

	pinctrl-0 = <&pinctrl_i2c2>;

	pinctrl-1 = <&pinctrl_i2c2_sleep>;

	clock-frequency = <100000>;

	status = "okay";



	/* eKTF2232 at 0x15 */

	/* FP9928 at 0x48 */

};



&i2c3 {

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_i2c3>;

	clock-frequency = <400000>;

	status = "okay";



	ricoh619: pmic@32 {

		compatible = "ricoh,rc5t619";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_ricoh_gpio>;

		reg = <0x32>;

		interrupt-parent = <&gpio5>;

		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;

		system-power-controller;



		regulators {

			dcdc1_reg: DCDC1 {

				regulator-name = "DCDC1";

				regulator-min-microvolt = <300000>;

				regulator-max-microvolt = <1875000>;

				regulator-always-on;

				regulator-boot-on;



				regulator-state-mem {

					regulator-on-in-suspend;

					regulator-suspend-max-microvolt = <900000>;

					regulator-suspend-min-microvolt = <900000>;

				};

			};



			/* Core3_3V3 */

			dcdc2_reg: DCDC2 {

				regulator-name = "DCDC2";

				regulator-always-on;

				regulator-boot-on;



				regulator-state-mem {

					regulator-on-in-suspend;

					regulator-suspend-max-microvolt = <3100000>;

					regulator-suspend-min-microvolt = <3100000>;

				};

			};



			dcdc3_reg: DCDC3 {

				regulator-name = "DCDC3";

				regulator-min-microvolt = <300000>;

				regulator-max-microvolt = <1875000>;

				regulator-always-on;

				regulator-boot-on;



				regulator-state-mem {

					regulator-on-in-suspend;

					regulator-suspend-max-microvolt = <1140000>;

					regulator-suspend-min-microvolt = <1140000>;

				};

			};



			/* Core4_1V2 */

			dcdc4_reg: DCDC4 {

				regulator-name = "DCDC4";

				regulator-min-microvolt = <1200000>;

				regulator-max-microvolt = <1200000>;

				regulator-always-on;

				regulator-boot-on;



				regulator-state-mem {

					regulator-on-in-suspend;

					regulator-suspend-max-microvolt = <1140000>;

					regulator-suspend-min-microvolt = <1140000>;

				};

			};



			/* Core4_1V8 */

			dcdc5_reg: DCDC5 {

				regulator-name = "DCDC5";

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <1800000>;

				regulator-always-on;

				regulator-boot-on;



				regulator-state-mem {

					regulator-on-in-suspend;

					regulator-suspend-max-microvolt = <1700000>;

					regulator-suspend-min-microvolt = <1700000>;

				};

			};



			/* IR_3V3 */

			ldo1_reg: LDO1  {

				regulator-name = "LDO1";

				regulator-always-on;

				regulator-boot-on;

			};



			/* Core1_3V3 */

			ldo2_reg: LDO2  {

				regulator-name = "LDO2";

				regulator-always-on;

				regulator-boot-on;



				regulator-state-mem {

					regulator-on-in-suspend;

					regulator-suspend-max-microvolt = <3000000>;

					regulator-suspend-min-microvolt = <3000000>;

				};

			};



			/* Core5_1V2 */

			ldo3_reg: LDO3  {

				regulator-name = "LDO3";

				regulator-always-on;

				regulator-boot-on;

			};



			ldo4_reg: LDO4 {

				regulator-name = "LDO4";

				regulator-boot-on;

			};



			/* SPD_3V3 */

			ldo5_reg: LDO5 {

				regulator-name = "LDO5";

				regulator-always-on;

				regulator-boot-on;

			};



			/* DDR_0V6 */

			ldo6_reg: LDO6 {

				regulator-name = "LDO6";

				regulator-always-on;

				regulator-boot-on;

			};



			/* VDD_PWM */

			ldo7_reg: LDO7 {

				regulator-name = "LDO7";

				regulator-always-on;

				regulator-boot-on;

			};



			/* ldo_1v8 */

			ldo8_reg: LDO8 {

				regulator-name = "LDO8";

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <1800000>;

				regulator-always-on;

				regulator-boot-on;

			};



			ldo9_reg: LDO9 {

				regulator-name = "LDO9";

				regulator-boot-on;

			};



			ldo10_reg: LDO10 {

				regulator-name = "LDO10";

				regulator-boot-on;

			};



			ldortc1_reg: LDORTC1  {

				regulator-name = "LDORTC1";

				regulator-always-on;

				regulator-boot-on;

			};

		};

	};

};



&reg_vdd1p1 {

	vin-supply = <&dcdc2_reg>;

};



&reg_vdd2p5 {

	vin-supply = <&dcdc2_reg>;

};



&reg_arm {

	vin-supply = <&dcdc3_reg>;

};



&reg_soc {

	vin-supply = <&dcdc1_reg>;

};



&reg_pu {

	vin-supply = <&dcdc1_reg>;

};



&snvs_rtc {

	/*

	 * We are using the RTC in the PMIC, but this one is not disabled

	 * in imx6sl.dtsi.

	 */

	status = "disabled";

};



&uart1 {

	/* J4, through-holes */

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_uart1>;

	status = "okay";

};



&uart4 {

	/* TP198, next to J4, SMD pads */

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_uart4>;

	status = "okay";

};



&usdhc2 {

	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";

	pinctrl-0 = <&pinctrl_usdhc2>;

	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;

	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;

	pinctrl-3 = <&pinctrl_usdhc2_sleep>;

	non-removable;

	status = "okay";



	/* internal uSD card */

};



&usdhc3 {

	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";

	pinctrl-0 = <&pinctrl_usdhc3>;

	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;

	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;

	pinctrl-3 = <&pinctrl_usdhc3_sleep>;

	vmmc-supply = <&reg_wifi>;

	mmc-pwrseq = <&wifi_pwrseq>;

	cap-power-off-card;

	non-removable;

	status = "okay";



	/*

	 * RTL8189F SDIO WiFi

	 */

};



&usbotg1 {

	disable-over-current;

	srp-disable;

	hnp-disable;

	adp-disable;

	status = "okay";

};



&iomuxc {

	pinctrl_gpio_keys: gpio-keysgrp {

		fsl,pins = <

			MX6SL_PAD_SD1_DAT1__GPIO5_IO08  0x17059

			MX6SL_PAD_SD1_DAT4__GPIO5_IO12  0x17059

		>;

	};



	pinctrl_i2c1: i2c1grp {

		fsl,pins = <

			MX6SL_PAD_I2C1_SCL__I2C1_SCL	 0x4001f8b1

			MX6SL_PAD_I2C1_SDA__I2C1_SDA	 0x4001f8b1

		>;

	};



	pinctrl_i2c1_sleep: i2c1-sleepgrp {

		fsl,pins = <

			MX6SL_PAD_I2C1_SCL__I2C1_SCL	 0x400108b1

			MX6SL_PAD_I2C1_SDA__I2C1_SDA	 0x400108b1

		>;

	};



	pinctrl_i2c2: i2c2grp {

		fsl,pins = <

			MX6SL_PAD_I2C2_SCL__I2C2_SCL	 0x4001f8b1

			MX6SL_PAD_I2C2_SDA__I2C2_SDA	 0x4001f8b1

		>;

	};



	pinctrl_i2c2_sleep: i2c2-sleepgrp {

		fsl,pins = <

			MX6SL_PAD_I2C2_SCL__I2C2_SCL	 0x400108b1

			MX6SL_PAD_I2C2_SDA__I2C2_SDA	 0x400108b1

		>;

	};



	pinctrl_i2c3: i2c3grp {

		fsl,pins = <

			MX6SL_PAD_REF_CLK_24M__I2C3_SCL  0x4001f8b1

			MX6SL_PAD_REF_CLK_32K__I2C3_SDA  0x4001f8b1

		>;

	};



	pinctrl_led: ledgrp {

		fsl,pins = <

			MX6SL_PAD_SD1_DAT6__GPIO5_IO07 0x17059

		>;

	};



	pinctrl_lm3630a_bl_gpio: lm3630a-bl-gpiogrp {

		fsl,pins = <

			MX6SL_PAD_EPDC_PWRCTRL3__GPIO2_IO10 0x10059 /* HWEN */

		>;

	};



	pinctrl_ricoh_gpio: ricoh-gpiogrp {

		fsl,pins = <

			MX6SL_PAD_SD1_CLK__GPIO5_IO15	0x1b8b1 /* ricoh619 chg */

			MX6SL_PAD_SD1_DAT0__GPIO5_IO11	0x1b8b1 /* ricoh619 irq */

			MX6SL_PAD_KEY_COL2__GPIO3_IO28	0x1b8b1 /* ricoh619 bat_low_int */

		>;

	};



	pinctrl_uart1: uart1grp {

		fsl,pins = <

			MX6SL_PAD_UART1_TXD__UART1_TX_DATA 0x1b0b1

			MX6SL_PAD_UART1_RXD__UART1_RX_DATA 0x1b0b1

		>;

	};



	pinctrl_uart4: uart4grp {

		fsl,pins = <

			MX6SL_PAD_KEY_ROW6__UART4_TX_DATA 0x1b0b1

			MX6SL_PAD_KEY_COL6__UART4_RX_DATA 0x1b0b1

		>;

	};



	pinctrl_usbotg1: usbotg1grp {

		fsl,pins = <

			MX6SL_PAD_EPDC_PWRCOM__USB_OTG1_ID 0x17059

		>;

	};



	pinctrl_usdhc2: usdhc2grp {

		fsl,pins = <

			MX6SL_PAD_SD2_CMD__SD2_CMD		0x17059

			MX6SL_PAD_SD2_CLK__SD2_CLK		0x13059

			MX6SL_PAD_SD2_DAT0__SD2_DATA0		0x17059

			MX6SL_PAD_SD2_DAT1__SD2_DATA1		0x17059

			MX6SL_PAD_SD2_DAT2__SD2_DATA2		0x17059

			MX6SL_PAD_SD2_DAT3__SD2_DATA3		0x17059

		>;

	};



	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {

		fsl,pins = <

			MX6SL_PAD_SD2_CMD__SD2_CMD		0x170b9

			MX6SL_PAD_SD2_CLK__SD2_CLK		0x130b9

			MX6SL_PAD_SD2_DAT0__SD2_DATA0		0x170b9

			MX6SL_PAD_SD2_DAT1__SD2_DATA1		0x170b9

			MX6SL_PAD_SD2_DAT2__SD2_DATA2		0x170b9

			MX6SL_PAD_SD2_DAT3__SD2_DATA3		0x170b9

		>;

	};



	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {

		fsl,pins = <

			MX6SL_PAD_SD2_CMD__SD2_CMD		0x170f9

			MX6SL_PAD_SD2_CLK__SD2_CLK		0x130f9

			MX6SL_PAD_SD2_DAT0__SD2_DATA0		0x170f9

			MX6SL_PAD_SD2_DAT1__SD2_DATA1		0x170f9

			MX6SL_PAD_SD2_DAT2__SD2_DATA2		0x170f9

			MX6SL_PAD_SD2_DAT3__SD2_DATA3		0x170f9

		>;

	};



	pinctrl_usdhc2_sleep: usdhc2-sleepgrp {

		fsl,pins = <

			MX6SL_PAD_SD2_CMD__GPIO5_IO04		0x100f9

			MX6SL_PAD_SD2_CLK__GPIO5_IO05		0x100f9

			MX6SL_PAD_SD2_DAT0__GPIO5_IO01		0x100f9

			MX6SL_PAD_SD2_DAT1__GPIO4_IO30		0x100f9

			MX6SL_PAD_SD2_DAT2__GPIO5_IO03		0x100f9

			MX6SL_PAD_SD2_DAT3__GPIO4_IO28		0x100f9

		>;

	};



	pinctrl_usdhc3: usdhc3grp {

		fsl,pins = <

			MX6SL_PAD_SD3_CMD__SD3_CMD	0x11059

			MX6SL_PAD_SD3_CLK__SD3_CLK	0x11059

			MX6SL_PAD_SD3_DAT0__SD3_DATA0	0x11059

			MX6SL_PAD_SD3_DAT1__SD3_DATA1	0x11059

			MX6SL_PAD_SD3_DAT2__SD3_DATA2	0x11059

			MX6SL_PAD_SD3_DAT3__SD3_DATA3	0x11059

		>;

	};



	pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {

		fsl,pins = <

			MX6SL_PAD_SD3_CMD__SD3_CMD	0x170b9

			MX6SL_PAD_SD3_CLK__SD3_CLK	0x170b9

			MX6SL_PAD_SD3_DAT0__SD3_DATA0	0x170b9

			MX6SL_PAD_SD3_DAT1__SD3_DATA1	0x170b9

			MX6SL_PAD_SD3_DAT2__SD3_DATA2	0x170b9

			MX6SL_PAD_SD3_DAT3__SD3_DATA3	0x170b9

		>;

	};



	pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {

		fsl,pins = <

			MX6SL_PAD_SD3_CMD__SD3_CMD	0x170f9

			MX6SL_PAD_SD3_CLK__SD3_CLK	0x170f9

			MX6SL_PAD_SD3_DAT0__SD3_DATA0	0x170f9

			MX6SL_PAD_SD3_DAT1__SD3_DATA1	0x170f9

			MX6SL_PAD_SD3_DAT2__SD3_DATA2	0x170f9

			MX6SL_PAD_SD3_DAT3__SD3_DATA3	0x170f9

		>;

	};



	pinctrl_usdhc3_sleep: usdhc3-sleepgrp {

		fsl,pins = <

			MX6SL_PAD_SD3_CMD__GPIO5_IO21	0x100c1

			MX6SL_PAD_SD3_CLK__GPIO5_IO18	0x100c1

			MX6SL_PAD_SD3_DAT0__GPIO5_IO19	0x100c1

			MX6SL_PAD_SD3_DAT1__GPIO5_IO20	0x100c1

			MX6SL_PAD_SD3_DAT2__GPIO5_IO16	0x100c1

			MX6SL_PAD_SD3_DAT3__GPIO5_IO17	0x100c1

		>;

	};



	pinctrl_wifi_power: wifi-powergrp {

		fsl,pins = <

			MX6SL_PAD_SD2_DAT6__GPIO4_IO29	0x10059	/* WIFI_3V3_ON */

		>;

	};



	pinctrl_wifi_reset: wifi-resetgrp {

		fsl,pins = <

			MX6SL_PAD_SD2_DAT7__GPIO5_IO00	0x10059	/* WIFI_RST */

		>;

	};

};