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arch/arm/dts/sun8i-a23-polaroid-mid2809pxe04.dts 3.18 KB
d41ce506b   Eric Lee   Initial Release, ...
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  /*
   * Copyright 2016 Hans de Goede <hdegoede@redhat.com>
   *
   * This file is dual-licensed: you can use it either under the terms
   * of the GPL or the X11 license, at your option. Note that this dual
   * licensing only applies to this file, and not this project as a
   * whole.
   *
   *  a) This file is free software; you can redistribute it and/or
   *     modify it under the terms of the GNU General Public License as
   *     published by the Free Software Foundation; either version 2 of the
   *     License, or (at your option) any later version.
   *
   *     This file is distributed in the hope that it will be useful,
   *     but WITHOUT ANY WARRANTY; without even the implied warranty of
   *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *     GNU General Public License for more details.
   *
   * Or, alternatively,
   *
   *  b) Permission is hereby granted, free of charge, to any person
   *     obtaining a copy of this software and associated documentation
   *     files (the "Software"), to deal in the Software without
   *     restriction, including without limitation the rights to use,
   *     copy, modify, merge, publish, distribute, sublicense, and/or
   *     sell copies of the Software, and to permit persons to whom the
   *     Software is furnished to do so, subject to the following
   *     conditions:
   *
   *     The above copyright notice and this permission notice shall be
   *     included in all copies or substantial portions of the Software.
   *
   *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
   *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
   *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   *     OTHER DEALINGS IN THE SOFTWARE.
   */
  
  /dts-v1/;
  #include "sun8i-a23.dtsi"
  #include "sun8i-reference-design-tablet.dtsi"
  
  / {
  	model = "Polaroid MID2809PXE04 tablet";
  	compatible = "polaroid,mid2809pxe04", "allwinner,sun8i-a23";
  
  	aliases {
  		ethernet0 = &esp8089;
  	};
  
  	wifi_pwrseq: wifi_pwrseq {
  		compatible = "mmc-pwrseq-simple";
  		pinctrl-names = "default";
  		pinctrl-0 = <&wifi_pwrseq_pin_mid2809>;
  		reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL6 */
  		/* The esp8089 needs 200 ms after driving wifi-en high */
  		post-power-on-delay-ms = <200>;
  	};
  };
  
  &gsl1680 {
  	compatible = "silead,gsl3670";
  	touchscreen-fw-name = "silead/gsl3670-polaroid-mid2809pxe04.fw";
  	touchscreen-size-x = <1660>;
  	touchscreen-size-y = <890>;
  	status = "okay";
  };
  
  &mmc1 {
  	pinctrl-names = "default";
  	pinctrl-0 = <&mmc1_pins_a>;
  	vmmc-supply = <&reg_dldo1>;
  	mmc-pwrseq = <&wifi_pwrseq>;
  	bus-width = <4>;
  	non-removable;
  	status = "okay";
  
  	esp8089: sdio_wifi@1 {
  		compatible = "esp,esp8089";
  		reg = <1>;
  		esp,crystal-26M-en = <2>;
  	};
  };
  
  &mmc1_pins_a {
  	allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
  };
  
  &r_pio {
  	wifi_pwrseq_pin_mid2809: wifi_pwrseq_pin@0 {
  		allwinner,pins = "PL6";
  		allwinner,function = "gpio_out";
  		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
  		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
  	};
  };