arch/arm/boot/dts/sun5i-r8-chip.dts

   1 /*
   2  * Copyright 2015 Free Electrons
   3  * Copyright 2015 NextThing Co
   4  *
   5  * Maxime Ripard <maxime.ripard@free-electrons.com>
   6  *
   7  * This file is dual-licensed: you can use it either under the terms
   8  * of the GPL or the X11 license, at your option. Note that this dual
   9  * licensing only applies to this file, and not this project as a
  10  * whole.
  11  *
  12  *  a) This file is free software; you can redistribute it and/or
  13  *     modify it under the terms of the GNU General Public License as
  14  *     published by the Free Software Foundation; either version 2 of the
  15  *     License, or (at your option) any later version.
  16  *
  17  *     This file is distributed in the hope that it will be useful,
  18  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *     GNU General Public License for more details.
  21  *
  22  * Or, alternatively,
  23  *
  24  *  b) Permission is hereby granted, free of charge, to any person
  25  *     obtaining a copy of this software and associated documentation
  26  *     files (the "Software"), to deal in the Software without
  27  *     restriction, including without limitation the rights to use,
  28  *     copy, modify, merge, publish, distribute, sublicense, and/or
  29  *     sell copies of the Software, and to permit persons to whom the
  30  *     Software is furnished to do so, subject to the following
  31  *     conditions:
  32  *
  33  *     The above copyright notice and this permission notice shall be
  34  *     included in all copies or substantial portions of the Software.
  35  *
  36  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  37  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  38  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  39  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  40  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  41  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  42  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  43  *     OTHER DEALINGS IN THE SOFTWARE.
  44  */
  45
  46 /dts-v1/;
  47 #include "sun5i-r8.dtsi"
  48 #include "sunxi-common-regulators.dtsi"
  49
  50 #include <dt-bindings/gpio/gpio.h>
  51 #include <dt-bindings/interrupt-controller/irq.h>
  52
  53 / {
  54         model = "NextThing C.H.I.P.";
  55         compatible = "nextthing,chip", "allwinner,sun5i-r8", "allwinner,sun5i-a13";
  56
  57         aliases {
  58                 i2c0 = &i2c0;
  59                 i2c1 = &i2c1;
  60                 i2c2 = &i2c2;
  61                 serial0 = &uart1;
  62                 serial1 = &uart3;
  63                 spi0 = &spi2;
  64         };
  65
  66         chosen {
  67                 stdout-path = "serial0:115200n8";
  68         };
  69
  70         leds {
  71                 compatible = "gpio-leds";
  72
  73                 status {
  74                         label = "chip:white:status";
  75                         gpios = <&axp_gpio 2 GPIO_ACTIVE_HIGH>;
  76                         default-state = "on";
  77                 };
  78         };
  79
  80         mmc0_pwrseq: mmc0_pwrseq {
  81                 compatible = "mmc-pwrseq-simple";
  82                 reset-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */
  83         };
  84
  85         onewire {
  86                 compatible = "w1-gpio";
  87                 gpios = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */
  88                 pinctrl-names = "default";
  89                 pinctrl-0 = <&chip_w1_pin>;
  90         };
  91 };
  92
  93 &be0 {
  94         status = "okay";
  95 };
  96
  97 &codec {
  98         status = "okay";
  99 };
 100
 101 &cpu0 {
 102         cpu-supply = <&reg_dcdc2>;
 103 };
 104
 105 &ehci0 {
 106         status = "okay";
 107 };
 108
 109 &i2c0 {
 110         status = "okay";
 111
 112         axp209: pmic@34 {
 113                 reg = <0x34>;
 114
 115                 /*
 116                  * The interrupt is routed through the "External Fast
 117                  * Interrupt Request" pin (ball G13 of the module)
 118                  * directly to the main interrupt controller, without
 119                  * any other controller interfering.
 120                  */
 121                 interrupts = <0>;
 122         };
 123 };
 124
 125 #include "axp209.dtsi"
 126
 127 &ac_power_supply {
 128         status = "okay";
 129 };
 130
 131 &battery_power_supply {
 132         status = "okay";
 133 };
 134
 135 &i2c1 {
 136         status = "disabled";
 137 };
 138
 139 &i2c2 {
 140         status = "okay";
 141
 142         xio: gpio@38 {
 143                 compatible = "nxp,pcf8574a";
 144                 reg = <0x38>;
 145
 146                 gpio-controller;
 147                 #gpio-cells = <2>;
 148
 149                 interrupt-parent = <&pio>;
 150                 interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>;
 151                 interrupt-controller;
 152                 #interrupt-cells = <2>;
 153         };
 154 };
 155
 156 &mmc0_pins {
 157         bias-pull-up;
 158 };
 159
 160 &mmc0 {
 161         vmmc-supply = <&reg_vcc3v3>;
 162         mmc-pwrseq = <&mmc0_pwrseq>;
 163         bus-width = <4>;
 164         non-removable;
 165         status = "okay";
 166 };
 167
 168 &ohci0 {
 169         status = "okay";
 170 };
 171
 172 &otg_sram {
 173         status = "okay";
 174 };
 175
 176 &pio {
 177         chip_w1_pin: chip-w1-pin {
 178                 pins = "PD2";
 179                 function = "gpio_in";
 180                 bias-pull-up;
 181         };
 182 };
 183
 184 &reg_dcdc2 {
 185         regulator-min-microvolt = <1000000>;
 186         regulator-max-microvolt = <1400000>;
 187         regulator-name = "cpuvdd";
 188         regulator-always-on;
 189 };
 190
 191 &reg_dcdc3 {
 192         regulator-min-microvolt = <1000000>;
 193         regulator-max-microvolt = <1300000>;
 194         regulator-name = "corevdd";
 195         regulator-always-on;
 196 };
 197
 198 &reg_ldo1 {
 199         regulator-name = "rtcvdd";
 200 };
 201
 202 &reg_ldo2 {
 203         regulator-min-microvolt = <2700000>;
 204         regulator-max-microvolt = <3300000>;
 205         regulator-name = "avcc";
 206         regulator-always-on;
 207 };
 208
 209 /*
 210  * Both LDO3 and LDO4 are used in parallel to power up the WiFi/BT
 211  * Chip.
 212  *
 213  * If those are not enabled, the SDIO part will not enumerate, and
 214  * since there's no way currently to pass DT infos to an SDIO device,
 215  * we cannot really do better than this ugly hack for now.
 216  */
 217 &reg_ldo3 {
 218         regulator-min-microvolt = <3300000>;
 219         regulator-max-microvolt = <3300000>;
 220         regulator-name = "vcc-wifi-1";
 221         regulator-always-on;
 222 };
 223
 224 &reg_ldo4 {
 225         regulator-min-microvolt = <3300000>;
 226         regulator-max-microvolt = <3300000>;
 227         regulator-name = "vcc-wifi-2";
 228         regulator-always-on;
 229 };
 230
 231 &reg_ldo5 {
 232         regulator-min-microvolt = <1800000>;
 233         regulator-max-microvolt = <1800000>;
 234         regulator-name = "vcc-1v8";
 235 };
 236
 237 &reg_usb0_vbus {
 238         vin-supply = <&reg_vcc5v0>;
 239         gpio = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
 240         status = "okay";
 241 };
 242
 243 &spi2 {
 244         pinctrl-names = "default";
 245         pinctrl-0 = <&spi2_pe_pins>;
 246         status = "disabled";
 247 };
 248
 249 &tcon0 {
 250         status = "okay";
 251 };
 252
 253 &tve0 {
 254         status = "okay";
 255 };
 256
 257 &uart1 {
 258         pinctrl-names = "default";
 259         pinctrl-0 = <&uart1_pg_pins>;
 260         status = "okay";
 261 };
 262
 263 &uart3 {
 264         pinctrl-names = "default";
 265         pinctrl-0 = <&uart3_pg_pins>,
 266                     <&uart3_cts_rts_pg_pins>;
 267         status = "okay";
 268 };
 269
 270 &usb_otg {
 271         dr_mode = "otg";
 272         status = "okay";
 273 };
 274
 275 &usb_power_supply {
 276         status = "okay";
 277 };
 278
 279 &usbphy {
 280         status = "okay";
 281
 282         usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
 283         usb0_vbus_power-supply = <&usb_power_supply>;
 284         usb0_vbus-supply = <&reg_usb0_vbus>;
 285         usb1_vbus-supply = <&reg_vcc5v0>;
 286 };