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 | GPIO_PULL_UP)>; /* PD2 */
  88         };
  89 };
  90
  91 &be0 {
  92         status = "okay";
  93 };
  94
  95 &codec {
  96         status = "okay";
  97 };
  98
  99 &cpu0 {
 100         cpu-supply = <&reg_dcdc2>;
 101 };
 102
 103 &ehci0 {
 104         status = "okay";
 105 };
 106
 107 &i2c0 {
 108         status = "okay";
 109
 110         axp209: pmic@34 {
 111                 reg = <0x34>;
 112
 113                 /*
 114                  * The interrupt is routed through the "External Fast
 115                  * Interrupt Request" pin (ball G13 of the module)
 116                  * directly to the main interrupt controller, without
 117                  * any other controller interfering.
 118                  */
 119                 interrupts = <0>;
 120         };
 121 };
 122
 123 #include "axp209.dtsi"
 124
 125 &ac_power_supply {
 126         status = "okay";
 127 };
 128
 129 &battery_power_supply {
 130         status = "okay";
 131 };
 132
 133 &i2c1 {
 134         status = "disabled";
 135 };
 136
 137 &i2c2 {
 138         status = "okay";
 139
 140         xio: gpio@38 {
 141                 compatible = "nxp,pcf8574a";
 142                 reg = <0x38>;
 143
 144                 gpio-controller;
 145                 #gpio-cells = <2>;
 146
 147                 interrupt-parent = <&pio>;
 148                 interrupts = <6 0 IRQ_TYPE_EDGE_FALLING>;
 149                 interrupt-controller;
 150                 #interrupt-cells = <2>;
 151         };
 152 };
 153
 154 &mmc0_pins {
 155         bias-pull-up;
 156 };
 157
 158 &mmc0 {
 159         vmmc-supply = <&reg_vcc3v3>;
 160         mmc-pwrseq = <&mmc0_pwrseq>;
 161         bus-width = <4>;
 162         non-removable;
 163         status = "okay";
 164 };
 165
 166 &ohci0 {
 167         status = "okay";
 168 };
 169
 170 &otg_sram {
 171         status = "okay";
 172 };
 173
 174 &reg_dcdc2 {
 175         regulator-min-microvolt = <1000000>;
 176         regulator-max-microvolt = <1400000>;
 177         regulator-name = "cpuvdd";
 178         regulator-always-on;
 179 };
 180
 181 &reg_dcdc3 {
 182         regulator-min-microvolt = <1000000>;
 183         regulator-max-microvolt = <1300000>;
 184         regulator-name = "corevdd";
 185         regulator-always-on;
 186 };
 187
 188 &reg_ldo1 {
 189         regulator-name = "rtcvdd";
 190 };
 191
 192 &reg_ldo2 {
 193         regulator-min-microvolt = <2700000>;
 194         regulator-max-microvolt = <3300000>;
 195         regulator-name = "avcc";
 196         regulator-always-on;
 197 };
 198
 199 /*
 200  * Both LDO3 and LDO4 are used in parallel to power up the WiFi/BT
 201  * Chip.
 202  *
 203  * If those are not enabled, the SDIO part will not enumerate, and
 204  * since there's no way currently to pass DT infos to an SDIO device,
 205  * we cannot really do better than this ugly hack for now.
 206  */
 207 &reg_ldo3 {
 208         regulator-min-microvolt = <3300000>;
 209         regulator-max-microvolt = <3300000>;
 210         regulator-name = "vcc-wifi-1";
 211         regulator-always-on;
 212 };
 213
 214 &reg_ldo4 {
 215         regulator-min-microvolt = <3300000>;
 216         regulator-max-microvolt = <3300000>;
 217         regulator-name = "vcc-wifi-2";
 218         regulator-always-on;
 219 };
 220
 221 &reg_ldo5 {
 222         regulator-min-microvolt = <1800000>;
 223         regulator-max-microvolt = <1800000>;
 224         regulator-name = "vcc-1v8";
 225 };
 226
 227 &reg_usb0_vbus {
 228         vin-supply = <&reg_vcc5v0>;
 229         gpio = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
 230         status = "okay";
 231 };
 232
 233 &spi2 {
 234         pinctrl-names = "default";
 235         pinctrl-0 = <&spi2_pe_pins>;
 236         status = "disabled";
 237 };
 238
 239 &tcon0 {
 240         status = "okay";
 241 };
 242
 243 &tve0 {
 244         status = "okay";
 245 };
 246
 247 &uart1 {
 248         pinctrl-names = "default";
 249         pinctrl-0 = <&uart1_pg_pins>;
 250         status = "okay";
 251 };
 252
 253 &uart3 {
 254         pinctrl-names = "default";
 255         pinctrl-0 = <&uart3_pg_pins>,
 256                     <&uart3_cts_rts_pg_pins>;
 257         status = "okay";
 258 };
 259
 260 &usb_otg {
 261         dr_mode = "otg";
 262         status = "okay";
 263 };
 264
 265 &usb_power_supply {
 266         status = "okay";
 267 };
 268
 269 &usbphy {
 270         status = "okay";
 271
 272         usb0_id_det-gpios = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
 273         usb0_vbus_power-supply = <&usb_power_supply>;
 274         usb0_vbus-supply = <&reg_usb0_vbus>;
 275         usb1_vbus-supply = <&reg_vcc5v0>;
 276 };