arch/arm/boot/dts/sun8i-a23-polaroid-mid2809pxe04.dts

   1 /*
   2  * Copyright 2016 Hans de Goede <hdegoede@redhat.com>
   3  *
   4  * This file is dual-licensed: you can use it either under the terms
   5  * of the GPL or the X11 license, at your option. Note that this dual
   6  * licensing only applies to this file, and not this project as a
   7  * whole.
   8  *
   9  *  a) This file is free software; you can redistribute it and/or
  10  *     modify it under the terms of the GNU General Public License as
  11  *     published by the Free Software Foundation; either version 2 of the
  12  *     License, or (at your option) any later version.
  13  *
  14  *     This file is distributed in the hope that it will be useful,
  15  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *     GNU General Public License for more details.
  18  *
  19  * Or, alternatively,
  20  *
  21  *  b) Permission is hereby granted, free of charge, to any person
  22  *     obtaining a copy of this software and associated documentation
  23  *     files (the "Software"), to deal in the Software without
  24  *     restriction, including without limitation the rights to use,
  25  *     copy, modify, merge, publish, distribute, sublicense, and/or
  26  *     sell copies of the Software, and to permit persons to whom the
  27  *     Software is furnished to do so, subject to the following
  28  *     conditions:
  29  *
  30  *     The above copyright notice and this permission notice shall be
  31  *     included in all copies or substantial portions of the Software.
  32  *
  33  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  34  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  35  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  36  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  37  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  38  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  39  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  40  *     OTHER DEALINGS IN THE SOFTWARE.
  41  */
  42
  43 /dts-v1/;
  44 #include "sun8i-a23.dtsi"
  45 #include "sun8i-reference-design-tablet.dtsi"
  46
  47 / {
  48         model = "Polaroid MID2809PXE04 tablet";
  49         compatible = "polaroid,mid2809pxe04", "allwinner,sun8i-a23";
  50
  51         aliases {
  52                 ethernet0 = &esp8089;
  53         };
  54
  55         wifi_pwrseq: wifi_pwrseq {
  56                 compatible = "mmc-pwrseq-simple";
  57                 pinctrl-names = "default";
  58                 pinctrl-0 = <&wifi_pwrseq_pin_mid2809>;
  59                 reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL6 */
  60                 /* The esp8089 needs 200 ms after driving wifi-en high */
  61                 post-power-on-delay-ms = <200>;
  62         };
  63 };
  64
  65 &mmc1 {
  66         pinctrl-names = "default";
  67         pinctrl-0 = <&mmc1_pins_a>;
  68         vmmc-supply = <&reg_dldo1>;
  69         mmc-pwrseq = <&wifi_pwrseq>;
  70         bus-width = <4>;
  71         non-removable;
  72         status = "okay";
  73
  74         esp8089: sdio_wifi@1 {
  75                 compatible = "esp,esp8089";
  76                 reg = <1>;
  77                 esp,crystal-26M-en = <2>;
  78         };
  79 };
  80
  81 &mmc1_pins_a {
  82         bias-pull-up;
  83 };
  84
  85 &r_pio {
  86         wifi_pwrseq_pin_mid2809: wifi_pwrseq_pin@0 {
  87                 pins = "PL6";
  88                 function = "gpio_out";
  89         };
  90 };
  91
  92 &touchscreen {
  93         reg = <0x40>;
  94         compatible = "silead,gsl3670";
  95         firmware-name = "gsl3670-polaroid-mid2809pxe04.fw";
  96         touchscreen-size-x = <1660>;
  97         touchscreen-size-y = <890>;
  98         status = "okay";
  99 };