Adds a devicetree for the Kobo Clara 2E Ebook reader. It is based on boards marked with "37NB-E60K2M+4A2" or "37NB-E60K2M+4B0". It is equipped with an i.MX6SLL SoC. Expected to work: - Buttons - Wifi - Bluetooth (if Wifi is initialized first, driver does not handle regulators yet) - LED - uSD - USB - RTC - Touchscreen Add human-readable comments for devices without mainlined driver and binding. Such comments can e.g. be help to find testers if someone starts to work on the missing drivers. Signed-off-by: Andreas Kemnade <andreas@xxxxxxxxxxxx> --- arch/arm/boot/dts/nxp/imx/Makefile | 2 + .../dts/nxp/imx/imx6sll-kobo-clara2e-a.dts | 23 + .../dts/nxp/imx/imx6sll-kobo-clara2e-b.dts | 23 + .../nxp/imx/imx6sll-kobo-clara2e-common.dtsi | 514 ++++++++++++++++++ 4 files changed, 562 insertions(+) create mode 100644 arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-a.dts create mode 100644 arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-b.dts create mode 100644 arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-common.dtsi diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile index 92e291603ea13..58db45352b666 100644 --- a/arch/arm/boot/dts/nxp/imx/Makefile +++ b/arch/arm/boot/dts/nxp/imx/Makefile @@ -290,6 +290,8 @@ dtb-$(CONFIG_SOC_IMX6SL) += \ dtb-$(CONFIG_SOC_IMX6SLL) += \ imx6sll-evk.dtb \ imx6sll-kobo-clarahd.dtb \ + imx6sll-kobo-clara2e-a.dtb \ + imx6sll-kobo-clara2e-b.dtb \ imx6sll-kobo-librah2o.dtb dtb-$(CONFIG_SOC_IMX6SX) += \ imx6sx-nitrogen6sx.dtb \ diff --git a/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-a.dts b/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-a.dts new file mode 100644 index 0000000000000..33756d6de7aa0 --- /dev/null +++ b/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-a.dts @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: (GPL-2.0) +/* + * Device tree for the Kobo Clara 2E rev A ebook reader + * + * Name on mainboard is: 37NB-E60K2M+4A2 + * Serials start with: E60K2M (a number also seen in + * vendor kernel sources) + * + * Copyright 2024 Andreas Kemnade + */ + +/dts-v1/; + +#include "imx6sll-kobo-clara2e-common.dtsi" + +/ { + model = "Kobo Clara 2E"; + compatible = "kobo,clara2e-b", "kobo,clara2e", "fsl,imx6sll"; +}; + +&i2c2 { + /* EPD PMIC SY7636 at 0x62 */ +}; diff --git a/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-b.dts b/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-b.dts new file mode 100644 index 0000000000000..f81aeacf51420 --- /dev/null +++ b/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-b.dts @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: (GPL-2.0) +/* + * Device tree for the Kobo Clara 2E rev B ebook reader + * + * Name on mainboard is: 37NB-E60K2M+4B0 + * Serials start with: E60K2M (a number also seen in + * vendor kernel sources) + * + * Copyright 2024 Andreas Kemnade + */ + +/dts-v1/; + +#include "imx6sll-kobo-clara2e-common.dtsi" + +/ { + model = "Kobo Clara 2E"; + compatible = "kobo,clara2e-b", "kobo,clara2e", "fsl,imx6sll"; +}; + +&i2c2 { + /* EPD PMIC JD9930 at 0x18 */ +}; diff --git a/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-common.dtsi b/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-common.dtsi new file mode 100644 index 0000000000000..c344cd8c2b839 --- /dev/null +++ b/arch/arm/boot/dts/nxp/imx/imx6sll-kobo-clara2e-common.dtsi @@ -0,0 +1,514 @@ +// SPDX-License-Identifier: (GPL-2.0) +/* + * Common part for Kobo Clara 2e device tree + * Copyright 2024 Andreas Kemnade + */ + +/dts-v1/; + +#include <dt-bindings/input/input.h> +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/leds/common.h> +#include "imx6sll.dtsi" + +/ { + aliases { + mmc0 = &usdhc2; + mmc1 = &usdhc3; + }; + + chosen { + stdout-path = &uart1; + }; + + gpio-keys { + compatible = "gpio-keys"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_gpio_keys>; + + key-cover { + label = "Cover"; + gpios = <&gpio4 23 GPIO_ACTIVE_LOW>; + linux,code = <SW_LID>; + linux,input-type = <EV_SW>; + wakeup-source; + }; + }; + + leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_led>; + + led { + color = <LED_COLOR_ID_WHITE>; + function = LED_FUNCTION_POWER; + gpios = <&gpio4 17 GPIO_ACTIVE_LOW>; + linux,default-trigger = "timer"; + }; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0x80000000 0x20000000>; + }; + + reg_wifi: regulator-wifi { + compatible = "regulator-fixed"; + regulator-name = "SD3_SPWR"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + gpio = <&gpio4 29 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; +}; + +&clks { + assigned-clocks = <&clks IMX6SLL_CLK_PLL4_AUDIO_DIV>; + assigned-clock-rates = <393216000>; +}; + +&cpu0 { + arm-supply = <&buck1>; + soc-supply = <&buck2>; +}; + +&i2c1 { + pinctrl-names = "default","sleep"; + pinctrl-0 = <&pinctrl_i2c1>; + pinctrl-1 = <&pinctrl_i2c1_sleep>; + clock-frequency = <100000>; + status = "okay"; + + /* backlight aw99703 at 0x36 */ +}; + +&i2c2 { + pinctrl-names = "default","sleep"; + pinctrl-0 = <&pinctrl_i2c2>; + pinctrl-1 = <&pinctrl_i2c2_sleep>; + clock-frequency = <100000>; + status = "okay"; + + /* backlight aw99703 at 0x36 */ + + touchscreen@38 { + compatible = "focaltech,ft5426"; + reg = <0x38>; + pinctrl-names = "default", "suspend"; + pinctrl-0 = <&pinctrl_touch_gpio>; + pinctrl-1 = <&pinctrl_touch_gpio_sleep>; + interrupt-parent = <&gpio4>; + interrupts = <24 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&gpio4 18 GPIO_ACTIVE_LOW>; + touchscreen-size-x = <1072>; + touchscreen-size-y = <1448>; + touchscreen-swapped-x-y; + }; +}; + +&i2c3 { + /* Bus seems to be in bad state after boot, allow full recovery */ + pinctrl-names = "default", "gpio"; + pinctrl-0 = <&pinctrl_i2c3>; + pinctrl-1 = <&pinctrl_i2c3_gpio>; + sda-gpios = <&gpio3 22 GPIO_ACTIVE_HIGH>; + scl-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>; + clock-frequency = <100000>; + status = "okay"; + + pmic@4b { + compatible = "rohm,bd71879", "rohm,bd71828"; + reg = <0x4b>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_bd71828>; + + interrupt-parent = <&gpio4>; + interrupts = <19 IRQ_TYPE_LEVEL_LOW>; + system-power-controller; + + clocks = <&clks 0>; + #clock-cells = <0>; + clock-output-names = "bd71828-32k-out"; + + gpio-controller; + #gpio-cells = <2>; + gpio-reserved-ranges = <0 1>, <2 1>; + + /* charge sense resistor is 30 milli-ohm */ + + regulators { + LDO1 { + name = "LDO1"; + regulator-name = "ldo1"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + }; + + LDO2 { + name = "LDO2"; + regulator-name = "ldo2"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + }; + + LDO3 { + name = "LDO3"; + regulator-name = "ldo3"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + }; + + ldo4: LDO4 { + name = "LDO4"; + regulator-name = "ldo4"; + regulator-always-on; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + }; + + LDO5 { + name = "LDO5"; + regulator-name = "ldo5"; + regulator-always-on; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + }; + + LDO6 { + name = "LDO6"; + regulator-name = "ldo6"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + LDO7 { + name = "LDO7"; + regulator-name = "ldo7"; + regulator-always-on; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + + buck1: BUCK1 { + name = "BUCK1"; + regulator-name = "buck1"; + regulator-always-on; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1400000>; + regulator-boot-on; + }; + + buck2: BUCK2 { + name = "BUCK2"; + regulator-name = "buck2"; + regulator-always-on; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + regulator-boot-on; + }; + + BUCK3 { + name = "BUCK3"; + regulator-name = "buck3"; + regulator-always-on; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; + }; + + BUCK4 { + name = "BUCK4"; + regulator-name = "buck4"; + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1200000>; + regulator-boot-on; + }; + + BUCK5 { + name = "BUCK5"; + regulator-name = "buck5"; + regulator-always-on; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + + BUCK6 { + name = "BUCK6"; + regulator-name = "buck6"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + }; + + BUCK7 { + name = "BUCK7"; + regulator-name = "buck7"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <2000000>; + }; + }; + }; +}; + +&iomuxc { + pinctrl_touch_gpio: touch-gpiogrp { + fsl,pins = < + MX6SLL_PAD_GPIO4_IO24__GPIO4_IO24 0x17059 /* TP_INT */ + MX6SLL_PAD_GPIO4_IO18__GPIO4_IO18 0x10059 /* TP_RST */ + >; + }; + + pinctrl_touch_gpio_sleep: touch-gpio-sleepgrp { + fsl,pins = < + MX6SLL_PAD_GPIO4_IO24__GPIO4_IO24 0x10059 /* TP_INT */ + MX6SLL_PAD_GPIO4_IO18__GPIO4_IO18 0x10059 /* TP_RST */ + >; + }; + + pinctrl_gpio_keys: gpio-keysgrp { + fsl,pins = < + MX6SLL_PAD_GPIO4_IO25__GPIO4_IO25 0x17059 /* PWR_SW */ + MX6SLL_PAD_GPIO4_IO23__GPIO4_IO23 0x17059 /* HALL_EN */ + >; + }; + + pinctrl_i2c1: i2c1grp { + fsl,pins = < + MX6SLL_PAD_I2C1_SCL__I2C1_SCL 0x4001f8b1 + MX6SLL_PAD_I2C1_SDA__I2C1_SDA 0x4001f8b1 + >; + }; + + pinctrl_i2c1_sleep: i2c1-sleepgrp { + fsl,pins = < + MX6SLL_PAD_I2C1_SCL__I2C1_SCL 0x400108b1 + MX6SLL_PAD_I2C1_SDA__I2C1_SDA 0x400108b1 + >; + }; + + pinctrl_i2c2: i2c2grp { + fsl,pins = < + MX6SLL_PAD_I2C2_SCL__I2C2_SCL 0x4001f8b1 + MX6SLL_PAD_I2C2_SDA__I2C2_SDA 0x4001f8b1 + >; + }; + + pinctrl_i2c2_sleep: i2c2-sleepgrp { + fsl,pins = < + MX6SLL_PAD_I2C2_SCL__I2C2_SCL 0x400108b1 + MX6SLL_PAD_I2C2_SDA__I2C2_SDA 0x400108b1 + >; + }; + + pinctrl_i2c3: i2c3grp { + fsl,pins = < + MX6SLL_PAD_REF_CLK_24M__I2C3_SCL 0x4001f8b1 + MX6SLL_PAD_REF_CLK_32K__I2C3_SDA 0x4001f8b1 + >; + }; + + pinctrl_i2c3_gpio: i2c3-gpiogrp { + fsl,pins = < + MX6SLL_PAD_REF_CLK_24M__GPIO3_IO21 0x4001f8b1 + MX6SLL_PAD_REF_CLK_32K__GPIO3_IO22 0x4001f8b1 + >; + }; + + pinctrl_led: ledgrp { + fsl,pins = < + MX6SLL_PAD_GPIO4_IO17__GPIO4_IO17 0x10059 + >; + }; + + pinctrl_uart1: uart1grp { + fsl,pins = < + MX6SLL_PAD_UART1_TXD__UART1_DCE_TX 0x1b0b1 + MX6SLL_PAD_UART1_RXD__UART1_DCE_RX 0x1b0b1 + >; + }; + + pinctrl_uart2: uart2grp { + fsl,pins = < + MX6SLL_PAD_LCD_ENABLE__UART2_DCE_RX 0x41b0b1 + MX6SLL_PAD_LCD_HSYNC__UART2_DCE_TX 0x41b0b1 + MX6SLL_PAD_LCD_VSYNC__UART2_DCE_RTS 0x41b0b1 + MX6SLL_PAD_LCD_RESET__UART2_DCE_CTS 0x41b0b1 + >; + }; + + pinctrl_uart2_sleep: uart2grp-sleep { + fsl,pins = < + MX6SLL_PAD_LCD_ENABLE__GPIO2_IO16 0x10059 + MX6SLL_PAD_LCD_HSYNC__GPIO2_IO17 0x10059 + MX6SLL_PAD_LCD_VSYNC__GPIO2_IO18 0x10059 + MX6SLL_PAD_LCD_RESET__GPIO2_IO19 0x10059 + >; + }; + + pinctrl_usbotg1: usbotg1grp { + fsl,pins = < + MX6SLL_PAD_EPDC_PWR_COM__USB_OTG1_ID 0x17059 + >; + }; + + pinctrl_usdhc2: usdhc2grp { + fsl,pins = < + MX6SLL_PAD_SD2_CMD__SD2_CMD 0x17059 + MX6SLL_PAD_SD2_CLK__SD2_CLK 0x13059 + MX6SLL_PAD_SD2_DATA0__SD2_DATA0 0x17059 + MX6SLL_PAD_SD2_DATA1__SD2_DATA1 0x17059 + MX6SLL_PAD_SD2_DATA2__SD2_DATA2 0x17059 + MX6SLL_PAD_SD2_DATA3__SD2_DATA3 0x17059 + >; + }; + + pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp { + fsl,pins = < + MX6SLL_PAD_SD2_CMD__SD2_CMD 0x170b9 + MX6SLL_PAD_SD2_CLK__SD2_CLK 0x130b9 + MX6SLL_PAD_SD2_DATA0__SD2_DATA0 0x170b9 + MX6SLL_PAD_SD2_DATA1__SD2_DATA1 0x170b9 + MX6SLL_PAD_SD2_DATA2__SD2_DATA2 0x170b9 + MX6SLL_PAD_SD2_DATA3__SD2_DATA3 0x170b9 + >; + }; + + pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp { + fsl,pins = < + MX6SLL_PAD_SD2_CMD__SD2_CMD 0x170f9 + MX6SLL_PAD_SD2_CLK__SD2_CLK 0x130f9 + MX6SLL_PAD_SD2_DATA0__SD2_DATA0 0x170f9 + MX6SLL_PAD_SD2_DATA1__SD2_DATA1 0x170f9 + MX6SLL_PAD_SD2_DATA2__SD2_DATA2 0x170f9 + MX6SLL_PAD_SD2_DATA3__SD2_DATA3 0x170f9 + >; + }; + + pinctrl_usdhc2_sleep: usdhc2-sleepgrp { + fsl,pins = < + MX6SLL_PAD_SD2_CMD__GPIO5_IO04 0x100f9 + MX6SLL_PAD_SD2_CLK__GPIO5_IO05 0x100f9 + MX6SLL_PAD_SD2_DATA0__GPIO5_IO01 0x100f9 + MX6SLL_PAD_SD2_DATA1__GPIO4_IO30 0x100f9 + MX6SLL_PAD_SD2_DATA2__GPIO5_IO03 0x100f9 + MX6SLL_PAD_SD2_DATA3__GPIO4_IO28 0x100f9 + >; + }; + + pinctrl_usdhc3: usdhc3grp { + fsl,pins = < + MX6SLL_PAD_SD3_CMD__SD3_CMD 0x11059 + MX6SLL_PAD_SD3_CLK__SD3_CLK 0x11059 + MX6SLL_PAD_SD3_DATA0__SD3_DATA0 0x11059 + MX6SLL_PAD_SD3_DATA1__SD3_DATA1 0x11059 + MX6SLL_PAD_SD3_DATA2__SD3_DATA2 0x11059 + MX6SLL_PAD_SD3_DATA3__SD3_DATA3 0x11059 + >; + }; + + pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp { + fsl,pins = < + MX6SLL_PAD_SD3_CMD__SD3_CMD 0x170b9 + MX6SLL_PAD_SD3_CLK__SD3_CLK 0x170b9 + MX6SLL_PAD_SD3_DATA0__SD3_DATA0 0x170b9 + MX6SLL_PAD_SD3_DATA1__SD3_DATA1 0x170b9 + MX6SLL_PAD_SD3_DATA2__SD3_DATA2 0x170b9 + MX6SLL_PAD_SD3_DATA3__SD3_DATA3 0x170b9 + >; + }; + + pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp { + fsl,pins = < + MX6SLL_PAD_SD3_CMD__SD3_CMD 0x170f9 + MX6SLL_PAD_SD3_CLK__SD3_CLK 0x170f9 + MX6SLL_PAD_SD3_DATA0__SD3_DATA0 0x170f9 + MX6SLL_PAD_SD3_DATA1__SD3_DATA1 0x170f9 + MX6SLL_PAD_SD3_DATA2__SD3_DATA2 0x170f9 + MX6SLL_PAD_SD3_DATA3__SD3_DATA3 0x170f9 + >; + }; + + pinctrl_usdhc3_sleep: usdhc3-sleepgrp { + fsl,pins = < + MX6SLL_PAD_SD3_CMD__GPIO5_IO21 0x100c1 + MX6SLL_PAD_SD3_CLK__GPIO5_IO18 0x100c1 + MX6SLL_PAD_SD3_DATA0__GPIO5_IO19 0x100c1 + MX6SLL_PAD_SD3_DATA1__GPIO5_IO20 0x100c1 + MX6SLL_PAD_SD3_DATA2__GPIO5_IO16 0x100c1 + MX6SLL_PAD_SD3_DATA3__GPIO5_IO17 0x100c1 + >; + }; + + pinctrl_wifi_power: wifi-powergrp { + fsl,pins = < + MX6SLL_PAD_SD2_DATA6__GPIO4_IO29 0x10059 + >; + }; + + pinctrl_bd71828: bd71828-gpiogrp { + fsl,pins = < + MX6SLL_PAD_KEY_COL0__GPIO3_IO24 0x1b8b1 + MX6SLL_PAD_GPIO4_IO19__GPIO4_IO19 0x1b8b1 + >; + }; +}; + +&snvs_rtc { + /* we are using the rtc in the pmic, not disabled in imx6sll.dtsi */ + status = "disabled"; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart1>; + status = "okay"; +}; + +&uart2 { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&pinctrl_uart2>; + pinctrl-1 = <&pinctrl_uart2_sleep>; + status = "okay"; + + /* requires LDO4 + power enable gpio */ + bluetooth { + compatible = "nxp,88w8987-bt"; + fw-init-baudrate = <1500000>; + }; +}; + +&usbotg1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usbotg1>; + disable-over-current; + srp-disable; + hnp-disable; + adp-disable; + 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"; +}; + +&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>; + /* card requires also ldo4 */ + vmmc-supply = <®_wifi>; + cap-power-off-card; + non-removable; + status = "okay"; +}; -- 2.39.5