ARM: dts: imx: add devicetree for Kobo Libra H2O

This adds a devicetree for the Kobo Libra H2O Ebook reader. It is based on
boards called e70k02. It is equipped with an imx6sll SoC.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 339 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx6sll-kobo-librah2o.dts b/arch/arm/boot/dts/imx6sll-kobo-librah2o.dts
new file mode 100644
index 000000000000..a8b0e88064d9
--- /dev/null
+++ b/arch/arm/boot/dts/imx6sll-kobo-librah2o.dts
@@ -0,0 +1,339 @@
+// SPDX-License-Identifier: (GPL-2.0)
+/*
+ * Device tree for the Kobo Libra H2O ebook reader
+ *
+ * Name on mainboard is: 37NB-E70K0M+6A3
+ * Serials start with: E70K02 (a number also seen in
+ * vendor kernel sources)
+ *
+ * This mainboard seems to be equipped with different SoCs.
+ * In the Kobo Libra H2O ebook reader it is an i.MX6SLL
+ *
+ * Copyright 2021 Andreas Kemnade
+ * based on works
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "imx6sll.dtsi"
+#include "e70k02.dtsi"
+
+/ {
+	model = "Kobo Libra H2O";
+	compatible = "kobo,librah2o", "fsl,imx6sll";
+};
+
+&clks {
+	assigned-clocks = <&clks IMX6SLL_CLK_PLL4_AUDIO_DIV>;
+	assigned-clock-rates = <393216000>;
+};
+
+&cpu0 {
+	arm-supply = <&dcdc3_reg>;
+	soc-supply = <&dcdc1_reg>;
+};
+
+&gpio_keys {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio_keys>;
+};
+
+&i2c1 {
+	pinctrl-names = "default","sleep";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	pinctrl-1 = <&pinctrl_i2c1_sleep>;
+};
+
+&i2c2 {
+	pinctrl-names = "default","sleep";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	pinctrl-1 = <&pinctrl_i2c2_sleep>;
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	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 */
+			MX6SLL_PAD_KEY_COL4__GPIO4_IO00		0x17059	/* PAGE_UP */
+			MX6SLL_PAD_KEY_COL5__GPIO4_IO02		0x17059	/* PAGE_DOWN */
+		>;
+	};
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			MX6SLL_PAD_LCD_DATA01__GPIO2_IO21	0x79
+			MX6SLL_PAD_LCD_DATA04__GPIO2_IO24	0x79
+			MX6SLL_PAD_LCD_DATA05__GPIO2_IO25	0x79
+			MX6SLL_PAD_LCD_DATA06__GPIO2_IO26	0x79
+			MX6SLL_PAD_LCD_DATA07__GPIO2_IO27	0x79
+			MX6SLL_PAD_LCD_DATA08__GPIO2_IO28	0x79
+			MX6SLL_PAD_LCD_DATA09__GPIO2_IO29	0x79
+			MX6SLL_PAD_LCD_DATA10__GPIO2_IO30	0x79
+			MX6SLL_PAD_LCD_DATA11__GPIO2_IO31	0x79
+			MX6SLL_PAD_LCD_DATA12__GPIO3_IO00	0x79
+			MX6SLL_PAD_LCD_DATA13__GPIO3_IO01	0x79
+			MX6SLL_PAD_LCD_DATA14__GPIO3_IO02	0x79
+			MX6SLL_PAD_LCD_DATA15__GPIO3_IO03	0x79
+			MX6SLL_PAD_LCD_DATA16__GPIO3_IO04	0x79
+			MX6SLL_PAD_LCD_DATA17__GPIO3_IO05	0x79
+			MX6SLL_PAD_LCD_DATA18__GPIO3_IO06	0x79
+			MX6SLL_PAD_LCD_DATA19__GPIO3_IO07	0x79
+			MX6SLL_PAD_LCD_DATA20__GPIO3_IO08	0x79
+			MX6SLL_PAD_LCD_DATA21__GPIO3_IO09	0x79
+			MX6SLL_PAD_LCD_DATA22__GPIO3_IO10	0x79
+			MX6SLL_PAD_LCD_DATA23__GPIO3_IO11	0x79
+			MX6SLL_PAD_LCD_CLK__GPIO2_IO15		0x79
+			MX6SLL_PAD_LCD_ENABLE__GPIO2_IO16	0x79
+			MX6SLL_PAD_LCD_HSYNC__GPIO2_IO17	0x79
+			MX6SLL_PAD_LCD_VSYNC__GPIO2_IO18	0x79
+			MX6SLL_PAD_LCD_RESET__GPIO2_IO19	0x79
+			MX6SLL_PAD_GPIO4_IO21__GPIO4_IO21	0x79
+			MX6SLL_PAD_GPIO4_IO26__GPIO4_IO26	0x79
+			MX6SLL_PAD_KEY_COL3__GPIO3_IO30		0x79
+			MX6SLL_PAD_KEY_ROW7__GPIO4_IO07		0x79
+			MX6SLL_PAD_ECSPI2_MOSI__GPIO4_IO13	0x79
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX6SLL_PAD_I2C1_SCL__I2C1_SCL   0x4001f8b1
+			MX6SLL_PAD_I2C1_SDA__I2C1_SDA   0x4001f8b1
+		>;
+	};
+
+	pinctrl_i2c1_sleep: i2c1grp-sleep {
+		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: i2c2grp-sleep {
+		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_led: ledgrp {
+		fsl,pins = <
+			MX6SLL_PAD_GPIO4_IO17__GPIO4_IO17	0x10059
+		>;
+	};
+
+	pinctrl_lm3630a_bl_gpio: lm3630a-bl-gpiogrp {
+		fsl,pins = <
+			MX6SLL_PAD_EPDC_PWR_CTRL3__GPIO2_IO10   0x10059 /* HWEN */
+		>;
+	};
+
+	pinctrl_ricoh_gpio: ricoh-gpiogrp {
+		fsl,pins = <
+			MX6SLL_PAD_GPIO4_IO20__GPIO4_IO20	0x1b8b1 /* ricoh619 chg */
+			MX6SLL_PAD_GPIO4_IO19__GPIO4_IO19	0x1b8b1 /* ricoh619 irq */
+			MX6SLL_PAD_KEY_COL2__GPIO3_IO28		0x1b8b1 /* ricoh619 bat_low_int */
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6SLL_PAD_UART1_TXD__UART1_DCE_TX 0x1b0b1
+			MX6SLL_PAD_UART1_RXD__UART1_DCE_RX 0x1b0b1
+		>;
+	};
+
+	pinctrl_usbotg1: usbotg1grp {
+		fsl,pins = <
+			MX6SLL_PAD_EPDC_PWR_COM__USB_OTG1_ID 0x17059
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX6SLL_PAD_SD1_CMD__SD1_CMD	0x17059
+			MX6SLL_PAD_SD1_CLK__SD1_CLK	0x17059
+			MX6SLL_PAD_SD1_DATA0__SD1_DATA0	0x17059
+			MX6SLL_PAD_SD1_DATA1__SD1_DATA1	0x17059
+			MX6SLL_PAD_SD1_DATA2__SD1_DATA2	0x17059
+			MX6SLL_PAD_SD1_DATA3__SD1_DATA3	0x17059
+			MX6SLL_PAD_SD1_DATA4__SD1_DATA4	0x17059
+			MX6SLL_PAD_SD1_DATA5__SD1_DATA5	0x17059
+			MX6SLL_PAD_SD1_DATA6__SD1_DATA6	0x17059
+			MX6SLL_PAD_SD1_DATA7__SD1_DATA7	0x17059
+		>;
+	};
+
+	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+		fsl,pins = <
+			MX6SLL_PAD_SD1_CMD__SD1_CMD	0x170b9
+			MX6SLL_PAD_SD1_CLK__SD1_CLK	0x170b9
+			MX6SLL_PAD_SD1_DATA0__SD1_DATA0	0x170b9
+			MX6SLL_PAD_SD1_DATA1__SD1_DATA1	0x170b9
+			MX6SLL_PAD_SD1_DATA2__SD1_DATA2	0x170b9
+			MX6SLL_PAD_SD1_DATA3__SD1_DATA3	0x170b9
+			MX6SLL_PAD_SD1_DATA4__SD1_DATA4	0x170b9
+			MX6SLL_PAD_SD1_DATA5__SD1_DATA5	0x170b9
+			MX6SLL_PAD_SD1_DATA6__SD1_DATA6	0x170b9
+			MX6SLL_PAD_SD1_DATA7__SD1_DATA7	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+		fsl,pins = <
+			MX6SLL_PAD_SD1_CMD__SD1_CMD	0x170f9
+			MX6SLL_PAD_SD1_CLK__SD1_CLK	0x170f9
+			MX6SLL_PAD_SD1_DATA0__SD1_DATA0	0x170f9
+			MX6SLL_PAD_SD1_DATA1__SD1_DATA1	0x170f9
+			MX6SLL_PAD_SD1_DATA2__SD1_DATA2	0x170f9
+			MX6SLL_PAD_SD1_DATA3__SD1_DATA3	0x170f9
+			MX6SLL_PAD_SD1_DATA4__SD1_DATA4	0x170b9
+			MX6SLL_PAD_SD1_DATA5__SD1_DATA5	0x170b9
+			MX6SLL_PAD_SD1_DATA6__SD1_DATA6	0x170b9
+			MX6SLL_PAD_SD1_DATA7__SD1_DATA7	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc1_sleep: usdhc1-sleepgrp {
+		fsl,pins = <
+			MX6SLL_PAD_SD1_CMD__SD1_CMD	0x10059
+			MX6SLL_PAD_SD1_CLK__SD1_CLK	0x10059
+			MX6SLL_PAD_SD1_DATA0__SD1_DATA0	0x10059
+			MX6SLL_PAD_SD1_DATA1__SD1_DATA1	0x10059
+			MX6SLL_PAD_SD1_DATA2__SD1_DATA2	0x10059
+			MX6SLL_PAD_SD1_DATA3__SD1_DATA3	0x10059
+			MX6SLL_PAD_SD1_DATA4__SD1_DATA4	0x10059
+			MX6SLL_PAD_SD1_DATA5__SD1_DATA5	0x10059
+			MX6SLL_PAD_SD1_DATA6__SD1_DATA6	0x10059
+			MX6SLL_PAD_SD1_DATA7__SD1_DATA7	0x10059
+		>;
+	};
+
+	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	 /* WIFI_3V3_ON */
+		>;
+	};
+
+	pinctrl_wifi_reset: wifi-resetgrp {
+		fsl,pins = <
+			MX6SLL_PAD_SD2_DATA7__GPIO5_IO00	0x10059	 /* WIFI_RST */
+		>;
+	};
+};
+
+&leds {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_led>;
+};
+
+&lm3630a {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lm3630a_bl_gpio>;
+};
+
+&reg_wifi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wifi_power>;
+};
+
+&ricoh619 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ricoh_gpio>;
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+};
+
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz","sleep";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	pinctrl-3 = <&pinctrl_usdhc1_sleep>;
+};
+
+&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>;
+};
+
+&wifi_pwrseq {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wifi_reset>;
+};