0001 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
0002 /*
0003 * Copyright (C) 2015 Freescale Semiconductor, Inc.
0004 * Copyright (C) 2019 reMarkable AS - http://www.remarkable.com/
0005 *
0006 */
0007
0008 /dts-v1/;
0009
0010 #include "imx7d.dtsi"
0011
0012 / {
0013 model = "reMarkable 2.0";
0014 compatible = "remarkable,imx7d-remarkable2", "fsl,imx7d";
0015
0016 chosen {
0017 stdout-path = &uart6;
0018 };
0019
0020 memory@80000000 {
0021 device_type = "memory";
0022 reg = <0x80000000 0x40000000>;
0023 };
0024
0025 reg_brcm: regulator-brcm {
0026 compatible = "regulator-fixed";
0027 regulator-name = "brcm_reg";
0028 regulator-min-microvolt = <3300000>;
0029 regulator-max-microvolt = <3300000>;
0030 pinctrl-names = "default";
0031 pinctrl-0 = <&pinctrl_brcm_reg>;
0032 gpio = <&gpio6 13 GPIO_ACTIVE_HIGH>;
0033 enable-active-high;
0034 startup-delay-us = <150>;
0035 };
0036
0037 reg_digitizer: regulator-digitizer {
0038 compatible = "regulator-fixed";
0039 regulator-name = "VDD_3V3_DIGITIZER";
0040 regulator-min-microvolt = <3300000>;
0041 regulator-max-microvolt = <3300000>;
0042 pinctrl-names = "default", "sleep";
0043 pinctrl-0 = <&pinctrl_digitizer_reg>;
0044 pinctrl-1 = <&pinctrl_digitizer_reg>;
0045 gpio = <&gpio1 6 GPIO_ACTIVE_HIGH>;
0046 enable-active-high;
0047 startup-delay-us = <100000>; /* 100 ms */
0048 };
0049
0050 wifi_pwrseq: wifi_pwrseq {
0051 compatible = "mmc-pwrseq-simple";
0052 pinctrl-names = "default";
0053 pinctrl-0 = <&pinctrl_wifi>;
0054 reset-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
0055 clocks = <&clks IMX7D_CLKO2_ROOT_DIV>;
0056 clock-names = "ext_clock";
0057 };
0058 };
0059
0060 &clks {
0061 assigned-clocks = <&clks IMX7D_CLKO2_ROOT_SRC>,
0062 <&clks IMX7D_CLKO2_ROOT_DIV>;
0063 assigned-clock-parents = <&clks IMX7D_CKIL>;
0064 assigned-clock-rates = <0>, <32768>;
0065 };
0066
0067 &i2c1 {
0068 clock-frequency = <400000>;
0069 pinctrl-names = "default";
0070 pinctrl-0 = <&pinctrl_i2c1>;
0071 status = "okay";
0072
0073 wacom_digitizer: digitizer@9 {
0074 compatible = "hid-over-i2c";
0075 reg = <0x09>;
0076 hid-descr-addr = <0x01>;
0077 pinctrl-names = "default";
0078 pinctrl-0 = <&pinctrl_wacom>;
0079 interrupt-parent = <&gpio1>;
0080 interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
0081 touchscreen-inverted-x;
0082 touchscreen-inverted-y;
0083 vdd-supply = <®_digitizer>;
0084 };
0085 };
0086
0087 &snvs_pwrkey {
0088 status = "okay";
0089 };
0090
0091 &uart1 {
0092 pinctrl-names = "default";
0093 pinctrl-0 = <&pinctrl_uart1>;
0094 assigned-clocks = <&clks IMX7D_UART1_ROOT_SRC>;
0095 assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
0096 status = "okay";
0097 };
0098
0099 &uart6 {
0100 pinctrl-names = "default";
0101 pinctrl-0 = <&pinctrl_uart6>;
0102 assigned-clocks = <&clks IMX7D_UART6_ROOT_SRC>;
0103 assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
0104 status = "okay";
0105 };
0106
0107 &usbotg2 {
0108 srp-disable;
0109 hnp-disable;
0110 status = "okay";
0111 };
0112
0113 &usdhc2 {
0114 #address-cells = <1>;
0115 #size-cells = <0>;
0116 pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
0117 pinctrl-0 = <&pinctrl_usdhc2>;
0118 pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
0119 pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
0120 mmc-pwrseq = <&wifi_pwrseq>;
0121 vmmc-supply = <®_brcm>;
0122 bus-width = <4>;
0123 non-removable;
0124 keep-power-in-suspend;
0125 cap-power-off-card;
0126 status = "okay";
0127
0128 brcmf: bcrmf@1 {
0129 reg = <1>;
0130 compatible = "brcm,bcm4329-fmac";
0131 };
0132 };
0133
0134 &usdhc3 {
0135 pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
0136 pinctrl-0 = <&pinctrl_usdhc3>;
0137 pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
0138 pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
0139 pinctrl-3 = <&pinctrl_usdhc3>;
0140 assigned-clocks = <&clks IMX7D_USDHC3_ROOT_CLK>;
0141 assigned-clock-rates = <400000000>;
0142 bus-width = <8>;
0143 non-removable;
0144 status = "okay";
0145 };
0146
0147 &wdog1 {
0148 pinctrl-names = "default";
0149 pinctrl-0 = <&pinctrl_wdog>;
0150 fsl,ext-reset-output;
0151 };
0152
0153 &iomuxc_lpsr {
0154 pinctrl_digitizer_reg: digitizerreggrp {
0155 fsl,pins = <
0156 /* DIGITIZER_PWR_EN */
0157 MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6 0x14
0158 >;
0159 };
0160
0161 pinctrl_wacom: wacomgrp {
0162 fsl,pins = <
0163 /*MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5 0x00000014 FWE */
0164 MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4 0x00000074 /* PDCTB */
0165 MX7D_PAD_LPSR_GPIO1_IO01__GPIO1_IO1 0x00000034 /* WACOM INT */
0166 /*MX7D_PAD_LPSR_GPIO1_IO06__GPIO1_IO6 0x00000014 WACOM PWR ENABLE */
0167 /*MX7D_PAD_LPSR_GPIO1_IO00__GPIO1_IO0 0x00000074 WACOM RESET */
0168 >;
0169 };
0170 };
0171
0172 &iomuxc {
0173 pinctrl_brcm_reg: brcmreggrp {
0174 fsl,pins = <
0175 /* WIFI_PWR_EN */
0176 MX7D_PAD_SAI1_TX_BCLK__GPIO6_IO13 0x14
0177 >;
0178 };
0179
0180 pinctrl_i2c1: i2c1grp {
0181 fsl,pins = <
0182 MX7D_PAD_I2C1_SDA__I2C1_SDA 0x4000007f
0183 MX7D_PAD_I2C1_SCL__I2C1_SCL 0x4000007f
0184 >;
0185 };
0186
0187 pinctrl_uart1: uart1grp {
0188 fsl,pins = <
0189 MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX 0x79
0190 MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX 0x79
0191 >;
0192 };
0193
0194 pinctrl_uart6: uart6grp {
0195 fsl,pins = <
0196 MX7D_PAD_EPDC_DATA09__UART6_DCE_TX 0x79
0197 MX7D_PAD_EPDC_DATA08__UART6_DCE_RX 0x79
0198 >;
0199 };
0200
0201 pinctrl_usdhc2: usdhc2grp {
0202 fsl,pins = <
0203 MX7D_PAD_SD2_CMD__SD2_CMD 0x59
0204 MX7D_PAD_SD2_CLK__SD2_CLK 0x19
0205 MX7D_PAD_SD2_DATA0__SD2_DATA0 0x59
0206 MX7D_PAD_SD2_DATA1__SD2_DATA1 0x59
0207 MX7D_PAD_SD2_DATA2__SD2_DATA2 0x59
0208 MX7D_PAD_SD2_DATA3__SD2_DATA3 0x59
0209 >;
0210 };
0211
0212 pinctrl_usdhc2_100mhz: usdhc2grp_100mhz {
0213 fsl,pins = <
0214 MX7D_PAD_SD2_CMD__SD2_CMD 0x5a
0215 MX7D_PAD_SD2_CLK__SD2_CLK 0x1a
0216 MX7D_PAD_SD2_DATA0__SD2_DATA0 0x5a
0217 MX7D_PAD_SD2_DATA1__SD2_DATA1 0x5a
0218 MX7D_PAD_SD2_DATA2__SD2_DATA2 0x5a
0219 MX7D_PAD_SD2_DATA3__SD2_DATA3 0x5a
0220 >;
0221 };
0222
0223 pinctrl_usdhc2_200mhz: usdhc2grp_200mhz {
0224 fsl,pins = <
0225 MX7D_PAD_SD2_CMD__SD2_CMD 0x5b
0226 MX7D_PAD_SD2_CLK__SD2_CLK 0x1b
0227 MX7D_PAD_SD2_DATA0__SD2_DATA0 0x5b
0228 MX7D_PAD_SD2_DATA1__SD2_DATA1 0x5b
0229 MX7D_PAD_SD2_DATA2__SD2_DATA2 0x5b
0230 MX7D_PAD_SD2_DATA3__SD2_DATA3 0x5b
0231 >;
0232 };
0233
0234 pinctrl_usdhc3: usdhc3grp {
0235 fsl,pins = <
0236 MX7D_PAD_SD3_CMD__SD3_CMD 0x59
0237 MX7D_PAD_SD3_CLK__SD3_CLK 0x19
0238 MX7D_PAD_SD3_DATA0__SD3_DATA0 0x59
0239 MX7D_PAD_SD3_DATA1__SD3_DATA1 0x59
0240 MX7D_PAD_SD3_DATA2__SD3_DATA2 0x59
0241 MX7D_PAD_SD3_DATA3__SD3_DATA3 0x59
0242 MX7D_PAD_SD3_DATA4__SD3_DATA4 0x59
0243 MX7D_PAD_SD3_DATA5__SD3_DATA5 0x59
0244 MX7D_PAD_SD3_DATA6__SD3_DATA6 0x59
0245 MX7D_PAD_SD3_DATA7__SD3_DATA7 0x59
0246 MX7D_PAD_SD3_STROBE__SD3_STROBE 0x19
0247 >;
0248 };
0249
0250 pinctrl_usdhc3_100mhz: usdhc3grp_100mhz {
0251 fsl,pins = <
0252 MX7D_PAD_SD3_CMD__SD3_CMD 0x5a
0253 MX7D_PAD_SD3_CLK__SD3_CLK 0x1a
0254 MX7D_PAD_SD3_DATA0__SD3_DATA0 0x5a
0255 MX7D_PAD_SD3_DATA1__SD3_DATA1 0x5a
0256 MX7D_PAD_SD3_DATA2__SD3_DATA2 0x5a
0257 MX7D_PAD_SD3_DATA3__SD3_DATA3 0x5a
0258 MX7D_PAD_SD3_DATA4__SD3_DATA4 0x5a
0259 MX7D_PAD_SD3_DATA5__SD3_DATA5 0x5a
0260 MX7D_PAD_SD3_DATA6__SD3_DATA6 0x5a
0261 MX7D_PAD_SD3_DATA7__SD3_DATA7 0x5a
0262 MX7D_PAD_SD3_STROBE__SD3_STROBE 0x1a
0263 >;
0264 };
0265
0266 pinctrl_usdhc3_200mhz: usdhc3grp_200mhz {
0267 fsl,pins = <
0268 MX7D_PAD_SD3_CMD__SD3_CMD 0x5b
0269 MX7D_PAD_SD3_CLK__SD3_CLK 0x1b
0270 MX7D_PAD_SD3_DATA0__SD3_DATA0 0x5b
0271 MX7D_PAD_SD3_DATA1__SD3_DATA1 0x5b
0272 MX7D_PAD_SD3_DATA2__SD3_DATA2 0x5b
0273 MX7D_PAD_SD3_DATA3__SD3_DATA3 0x5b
0274 MX7D_PAD_SD3_DATA4__SD3_DATA4 0x5b
0275 MX7D_PAD_SD3_DATA5__SD3_DATA5 0x5b
0276 MX7D_PAD_SD3_DATA6__SD3_DATA6 0x5b
0277 MX7D_PAD_SD3_DATA7__SD3_DATA7 0x5b
0278 MX7D_PAD_SD3_STROBE__SD3_STROBE 0x1b
0279 >;
0280 };
0281
0282 pinctrl_wdog: wdoggrp {
0283 fsl,pins = <
0284 MX7D_PAD_ENET1_COL__WDOG1_WDOG_ANY 0x74
0285 >;
0286 };
0287
0288 pinctrl_wifi: wifigrp {
0289 fsl,pins = <
0290 /* WiFi Reg On */
0291 MX7D_PAD_SD2_CD_B__GPIO5_IO9 0x00000014
0292 /* WiFi Sleep 32k */
0293 MX7D_PAD_SD1_WP__CCM_CLKO2 0x00000014
0294 >;
0295 };
0296 };
