0001 // SPDX-License-Identifier: (GPL-2.0)
0002 /*
0003 * Device tree for the Kobo Libra H2O ebook reader
0004 *
0005 * Name on mainboard is: 37NB-E70K0M+6A3
0006 * Serials start with: E70K02 (a number also seen in
0007 * vendor kernel sources)
0008 *
0009 * This mainboard seems to be equipped with different SoCs.
0010 * In the Kobo Libra H2O ebook reader it is an i.MX6SLL
0011 *
0012 * Copyright 2021 Andreas Kemnade
0013 * based on works
0014 * Copyright 2016 Freescale Semiconductor, Inc.
0015 */
0016
0017 /dts-v1/;
0018
0019 #include <dt-bindings/input/input.h>
0020 #include <dt-bindings/gpio/gpio.h>
0021 #include "imx6sll.dtsi"
0022 #include "e70k02.dtsi"
0023
0024 / {
0025 model = "Kobo Libra H2O";
0026 compatible = "kobo,librah2o", "fsl,imx6sll";
0027 };
0028
0029 &clks {
0030 assigned-clocks = <&clks IMX6SLL_CLK_PLL4_AUDIO_DIV>;
0031 assigned-clock-rates = <393216000>;
0032 };
0033
0034 &cpu0 {
0035 arm-supply = <&dcdc3_reg>;
0036 soc-supply = <&dcdc1_reg>;
0037 };
0038
0039 &gpio_keys {
0040 pinctrl-names = "default";
0041 pinctrl-0 = <&pinctrl_gpio_keys>;
0042 };
0043
0044 &i2c1 {
0045 pinctrl-names = "default","sleep";
0046 pinctrl-0 = <&pinctrl_i2c1>;
0047 pinctrl-1 = <&pinctrl_i2c1_sleep>;
0048 };
0049
0050 &i2c2 {
0051 pinctrl-names = "default","sleep";
0052 pinctrl-0 = <&pinctrl_i2c2>;
0053 pinctrl-1 = <&pinctrl_i2c2_sleep>;
0054 };
0055
0056 &i2c3 {
0057 pinctrl-names = "default";
0058 pinctrl-0 = <&pinctrl_i2c3>;
0059 };
0060
0061 &iomuxc {
0062 pinctrl-names = "default";
0063 pinctrl-0 = <&pinctrl_hog>;
0064
0065 pinctrl_gpio_keys: gpio-keysgrp {
0066 fsl,pins = <
0067 MX6SLL_PAD_GPIO4_IO25__GPIO4_IO25 0x17059 /* PWR_SW */
0068 MX6SLL_PAD_GPIO4_IO23__GPIO4_IO23 0x17059 /* HALL_EN */
0069 MX6SLL_PAD_KEY_COL4__GPIO4_IO00 0x17059 /* PAGE_UP */
0070 MX6SLL_PAD_KEY_COL5__GPIO4_IO02 0x17059 /* PAGE_DOWN */
0071 >;
0072 };
0073
0074 pinctrl_hog: hoggrp {
0075 fsl,pins = <
0076 MX6SLL_PAD_LCD_DATA01__GPIO2_IO21 0x79
0077 MX6SLL_PAD_LCD_DATA04__GPIO2_IO24 0x79
0078 MX6SLL_PAD_LCD_DATA05__GPIO2_IO25 0x79
0079 MX6SLL_PAD_LCD_DATA06__GPIO2_IO26 0x79
0080 MX6SLL_PAD_LCD_DATA07__GPIO2_IO27 0x79
0081 MX6SLL_PAD_LCD_DATA08__GPIO2_IO28 0x79
0082 MX6SLL_PAD_LCD_DATA09__GPIO2_IO29 0x79
0083 MX6SLL_PAD_LCD_DATA10__GPIO2_IO30 0x79
0084 MX6SLL_PAD_LCD_DATA11__GPIO2_IO31 0x79
0085 MX6SLL_PAD_LCD_DATA12__GPIO3_IO00 0x79
0086 MX6SLL_PAD_LCD_DATA13__GPIO3_IO01 0x79
0087 MX6SLL_PAD_LCD_DATA14__GPIO3_IO02 0x79
0088 MX6SLL_PAD_LCD_DATA15__GPIO3_IO03 0x79
0089 MX6SLL_PAD_LCD_DATA16__GPIO3_IO04 0x79
0090 MX6SLL_PAD_LCD_DATA17__GPIO3_IO05 0x79
0091 MX6SLL_PAD_LCD_DATA18__GPIO3_IO06 0x79
0092 MX6SLL_PAD_LCD_DATA19__GPIO3_IO07 0x79
0093 MX6SLL_PAD_LCD_DATA20__GPIO3_IO08 0x79
0094 MX6SLL_PAD_LCD_DATA21__GPIO3_IO09 0x79
0095 MX6SLL_PAD_LCD_DATA22__GPIO3_IO10 0x79
0096 MX6SLL_PAD_LCD_DATA23__GPIO3_IO11 0x79
0097 MX6SLL_PAD_LCD_CLK__GPIO2_IO15 0x79
0098 MX6SLL_PAD_LCD_ENABLE__GPIO2_IO16 0x79
0099 MX6SLL_PAD_LCD_HSYNC__GPIO2_IO17 0x79
0100 MX6SLL_PAD_LCD_VSYNC__GPIO2_IO18 0x79
0101 MX6SLL_PAD_LCD_RESET__GPIO2_IO19 0x79
0102 MX6SLL_PAD_GPIO4_IO21__GPIO4_IO21 0x79
0103 MX6SLL_PAD_GPIO4_IO26__GPIO4_IO26 0x79
0104 MX6SLL_PAD_KEY_COL3__GPIO3_IO30 0x79
0105 MX6SLL_PAD_KEY_ROW7__GPIO4_IO07 0x79
0106 MX6SLL_PAD_ECSPI2_MOSI__GPIO4_IO13 0x79
0107 >;
0108 };
0109
0110 pinctrl_i2c1: i2c1grp {
0111 fsl,pins = <
0112 MX6SLL_PAD_I2C1_SCL__I2C1_SCL 0x4001f8b1
0113 MX6SLL_PAD_I2C1_SDA__I2C1_SDA 0x4001f8b1
0114 >;
0115 };
0116
0117 pinctrl_i2c1_sleep: i2c1grp-sleep {
0118 fsl,pins = <
0119 MX6SLL_PAD_I2C1_SCL__I2C1_SCL 0x400108b1
0120 MX6SLL_PAD_I2C1_SDA__I2C1_SDA 0x400108b1
0121 >;
0122 };
0123
0124 pinctrl_i2c2: i2c2grp {
0125 fsl,pins = <
0126 MX6SLL_PAD_I2C2_SCL__I2C2_SCL 0x4001f8b1
0127 MX6SLL_PAD_I2C2_SDA__I2C2_SDA 0x4001f8b1
0128 >;
0129 };
0130
0131 pinctrl_i2c2_sleep: i2c2grp-sleep {
0132 fsl,pins = <
0133 MX6SLL_PAD_I2C2_SCL__I2C2_SCL 0x400108b1
0134 MX6SLL_PAD_I2C2_SDA__I2C2_SDA 0x400108b1
0135 >;
0136 };
0137
0138 pinctrl_i2c3: i2c3grp {
0139 fsl,pins = <
0140 MX6SLL_PAD_REF_CLK_24M__I2C3_SCL 0x4001f8b1
0141 MX6SLL_PAD_REF_CLK_32K__I2C3_SDA 0x4001f8b1
0142 >;
0143 };
0144
0145 pinctrl_led: ledgrp {
0146 fsl,pins = <
0147 MX6SLL_PAD_GPIO4_IO17__GPIO4_IO17 0x10059
0148 >;
0149 };
0150
0151 pinctrl_lm3630a_bl_gpio: lm3630a-bl-gpiogrp {
0152 fsl,pins = <
0153 MX6SLL_PAD_EPDC_PWR_CTRL3__GPIO2_IO10 0x10059 /* HWEN */
0154 >;
0155 };
0156
0157 pinctrl_ricoh_gpio: ricoh-gpiogrp {
0158 fsl,pins = <
0159 MX6SLL_PAD_GPIO4_IO20__GPIO4_IO20 0x1b8b1 /* ricoh619 chg */
0160 MX6SLL_PAD_GPIO4_IO19__GPIO4_IO19 0x1b8b1 /* ricoh619 irq */
0161 MX6SLL_PAD_KEY_COL2__GPIO3_IO28 0x1b8b1 /* ricoh619 bat_low_int */
0162 >;
0163 };
0164
0165 pinctrl_uart1: uart1grp {
0166 fsl,pins = <
0167 MX6SLL_PAD_UART1_TXD__UART1_DCE_TX 0x1b0b1
0168 MX6SLL_PAD_UART1_RXD__UART1_DCE_RX 0x1b0b1
0169 >;
0170 };
0171
0172 pinctrl_usbotg1: usbotg1grp {
0173 fsl,pins = <
0174 MX6SLL_PAD_EPDC_PWR_COM__USB_OTG1_ID 0x17059
0175 >;
0176 };
0177
0178 pinctrl_usdhc1: usdhc1grp {
0179 fsl,pins = <
0180 MX6SLL_PAD_SD1_CMD__SD1_CMD 0x17059
0181 MX6SLL_PAD_SD1_CLK__SD1_CLK 0x17059
0182 MX6SLL_PAD_SD1_DATA0__SD1_DATA0 0x17059
0183 MX6SLL_PAD_SD1_DATA1__SD1_DATA1 0x17059
0184 MX6SLL_PAD_SD1_DATA2__SD1_DATA2 0x17059
0185 MX6SLL_PAD_SD1_DATA3__SD1_DATA3 0x17059
0186 MX6SLL_PAD_SD1_DATA4__SD1_DATA4 0x17059
0187 MX6SLL_PAD_SD1_DATA5__SD1_DATA5 0x17059
0188 MX6SLL_PAD_SD1_DATA6__SD1_DATA6 0x17059
0189 MX6SLL_PAD_SD1_DATA7__SD1_DATA7 0x17059
0190 >;
0191 };
0192
0193 pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
0194 fsl,pins = <
0195 MX6SLL_PAD_SD1_CMD__SD1_CMD 0x170b9
0196 MX6SLL_PAD_SD1_CLK__SD1_CLK 0x170b9
0197 MX6SLL_PAD_SD1_DATA0__SD1_DATA0 0x170b9
0198 MX6SLL_PAD_SD1_DATA1__SD1_DATA1 0x170b9
0199 MX6SLL_PAD_SD1_DATA2__SD1_DATA2 0x170b9
0200 MX6SLL_PAD_SD1_DATA3__SD1_DATA3 0x170b9
0201 MX6SLL_PAD_SD1_DATA4__SD1_DATA4 0x170b9
0202 MX6SLL_PAD_SD1_DATA5__SD1_DATA5 0x170b9
0203 MX6SLL_PAD_SD1_DATA6__SD1_DATA6 0x170b9
0204 MX6SLL_PAD_SD1_DATA7__SD1_DATA7 0x170b9
0205 >;
0206 };
0207
0208 pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
0209 fsl,pins = <
0210 MX6SLL_PAD_SD1_CMD__SD1_CMD 0x170f9
0211 MX6SLL_PAD_SD1_CLK__SD1_CLK 0x170f9
0212 MX6SLL_PAD_SD1_DATA0__SD1_DATA0 0x170f9
0213 MX6SLL_PAD_SD1_DATA1__SD1_DATA1 0x170f9
0214 MX6SLL_PAD_SD1_DATA2__SD1_DATA2 0x170f9
0215 MX6SLL_PAD_SD1_DATA3__SD1_DATA3 0x170f9
0216 MX6SLL_PAD_SD1_DATA4__SD1_DATA4 0x170b9
0217 MX6SLL_PAD_SD1_DATA5__SD1_DATA5 0x170b9
0218 MX6SLL_PAD_SD1_DATA6__SD1_DATA6 0x170b9
0219 MX6SLL_PAD_SD1_DATA7__SD1_DATA7 0x170b9
0220 >;
0221 };
0222
0223 pinctrl_usdhc1_sleep: usdhc1-sleepgrp {
0224 fsl,pins = <
0225 MX6SLL_PAD_SD1_CMD__SD1_CMD 0x10059
0226 MX6SLL_PAD_SD1_CLK__SD1_CLK 0x10059
0227 MX6SLL_PAD_SD1_DATA0__SD1_DATA0 0x10059
0228 MX6SLL_PAD_SD1_DATA1__SD1_DATA1 0x10059
0229 MX6SLL_PAD_SD1_DATA2__SD1_DATA2 0x10059
0230 MX6SLL_PAD_SD1_DATA3__SD1_DATA3 0x10059
0231 MX6SLL_PAD_SD1_DATA4__SD1_DATA4 0x10059
0232 MX6SLL_PAD_SD1_DATA5__SD1_DATA5 0x10059
0233 MX6SLL_PAD_SD1_DATA6__SD1_DATA6 0x10059
0234 MX6SLL_PAD_SD1_DATA7__SD1_DATA7 0x10059
0235 >;
0236 };
0237
0238 pinctrl_usdhc3: usdhc3grp {
0239 fsl,pins = <
0240 MX6SLL_PAD_SD3_CMD__SD3_CMD 0x11059
0241 MX6SLL_PAD_SD3_CLK__SD3_CLK 0x11059
0242 MX6SLL_PAD_SD3_DATA0__SD3_DATA0 0x11059
0243 MX6SLL_PAD_SD3_DATA1__SD3_DATA1 0x11059
0244 MX6SLL_PAD_SD3_DATA2__SD3_DATA2 0x11059
0245 MX6SLL_PAD_SD3_DATA3__SD3_DATA3 0x11059
0246 >;
0247 };
0248
0249 pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
0250 fsl,pins = <
0251 MX6SLL_PAD_SD3_CMD__SD3_CMD 0x170b9
0252 MX6SLL_PAD_SD3_CLK__SD3_CLK 0x170b9
0253 MX6SLL_PAD_SD3_DATA0__SD3_DATA0 0x170b9
0254 MX6SLL_PAD_SD3_DATA1__SD3_DATA1 0x170b9
0255 MX6SLL_PAD_SD3_DATA2__SD3_DATA2 0x170b9
0256 MX6SLL_PAD_SD3_DATA3__SD3_DATA3 0x170b9
0257 >;
0258 };
0259
0260 pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
0261 fsl,pins = <
0262 MX6SLL_PAD_SD3_CMD__SD3_CMD 0x170f9
0263 MX6SLL_PAD_SD3_CLK__SD3_CLK 0x170f9
0264 MX6SLL_PAD_SD3_DATA0__SD3_DATA0 0x170f9
0265 MX6SLL_PAD_SD3_DATA1__SD3_DATA1 0x170f9
0266 MX6SLL_PAD_SD3_DATA2__SD3_DATA2 0x170f9
0267 MX6SLL_PAD_SD3_DATA3__SD3_DATA3 0x170f9
0268 >;
0269 };
0270
0271 pinctrl_usdhc3_sleep: usdhc3-sleepgrp {
0272 fsl,pins = <
0273 MX6SLL_PAD_SD3_CMD__GPIO5_IO21 0x100c1
0274 MX6SLL_PAD_SD3_CLK__GPIO5_IO18 0x100c1
0275 MX6SLL_PAD_SD3_DATA0__GPIO5_IO19 0x100c1
0276 MX6SLL_PAD_SD3_DATA1__GPIO5_IO20 0x100c1
0277 MX6SLL_PAD_SD3_DATA2__GPIO5_IO16 0x100c1
0278 MX6SLL_PAD_SD3_DATA3__GPIO5_IO17 0x100c1
0279 >;
0280 };
0281
0282 pinctrl_wifi_power: wifi-powergrp {
0283 fsl,pins = <
0284 MX6SLL_PAD_SD2_DATA6__GPIO4_IO29 0x10059 /* WIFI_3V3_ON */
0285 >;
0286 };
0287
0288 pinctrl_wifi_reset: wifi-resetgrp {
0289 fsl,pins = <
0290 MX6SLL_PAD_SD2_DATA7__GPIO5_IO00 0x10059 /* WIFI_RST */
0291 >;
0292 };
0293 };
0294
0295 &leds {
0296 pinctrl-names = "default";
0297 pinctrl-0 = <&pinctrl_led>;
0298 };
0299
0300 &lm3630a {
0301 pinctrl-names = "default";
0302 pinctrl-0 = <&pinctrl_lm3630a_bl_gpio>;
0303 };
0304
0305 ®_wifi {
0306 pinctrl-names = "default";
0307 pinctrl-0 = <&pinctrl_wifi_power>;
0308 };
0309
0310 &ricoh619 {
0311 pinctrl-names = "default";
0312 pinctrl-0 = <&pinctrl_ricoh_gpio>;
0313 };
0314
0315 &uart1 {
0316 pinctrl-names = "default";
0317 pinctrl-0 = <&pinctrl_uart1>;
0318 };
0319
0320 &usdhc1 {
0321 pinctrl-names = "default", "state_100mhz", "state_200mhz","sleep";
0322 pinctrl-0 = <&pinctrl_usdhc1>;
0323 pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
0324 pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
0325 pinctrl-3 = <&pinctrl_usdhc1_sleep>;
0326 };
0327
0328 &usdhc3 {
0329 pinctrl-names = "default", "state_100mhz", "state_200mhz","sleep";
0330 pinctrl-0 = <&pinctrl_usdhc3>;
0331 pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
0332 pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
0333 pinctrl-3 = <&pinctrl_usdhc3_sleep>;
0334 };
0335
0336 &wifi_pwrseq {
0337 pinctrl-names = "default";
0338 pinctrl-0 = <&pinctrl_wifi_reset>;
0339 };
