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      1 /*
      2  * Copyright 2015 Lawrence Yu <lyu (at) micile.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 "sun6i-a31s.dtsi"
     45 #include "sunxi-common-regulators.dtsi"
     46 
     47 #include <dt-bindings/gpio/gpio.h>
     48 
     49 / {
     50 	model = "Yones TopTech BS1078 v2 Tablet";
     51 	compatible = "yones-toptech,bs1078-v2", "allwinner,sun6i-a31s";
     52 
     53 	aliases {
     54 		serial0 = &uart0;
     55 		i2c1 = &i2c1;
     56 		i2c2 = &i2c2;
     57 	};
     58 
     59 	chosen {
     60 		stdout-path = "serial0:115200n8";
     61 	};
     62 };
     63 
     64 &i2c1 {
     65 	status = "okay";
     66 };
     67 
     68 &i2c2 {
     69 	status = "okay";
     70 };
     71 
     72 &ehci0 {
     73 	status = "okay";
     74 };
     75 
     76 &ehci1 {
     77 	status = "okay";
     78 };
     79 
     80 &ohci0 {
     81 	status = "okay";
     82 };
     83 
     84 &ohci1 {
     85 	status = "okay";
     86 };
     87 
     88 &mmc0 {
     89 	vmmc-supply = <&reg_vcc3v0>;
     90 	bus-width = <4>;
     91 	cd-gpios = <&pio 0 8 GPIO_ACTIVE_LOW>; /* PA8 */
     92 	status = "okay";
     93 };
     94 
     95 &p2wi {
     96 	status = "okay";
     97 
     98 	axp22x: pmic@68 {
     99 		compatible = "x-powers,axp221";
    100 		reg = <0x68>;
    101 		interrupt-parent = <&r_intc>;
    102 		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
    103 	};
    104 };
    105 
    106 #include "axp22x.dtsi"
    107 
    108 &reg_aldo3 {
    109 	regulator-always-on;
    110 	regulator-min-microvolt = <2700000>;
    111 	regulator-max-microvolt = <3300000>;
    112 	regulator-name = "avcc";
    113 };
    114 
    115 &reg_dc1sw {
    116 	regulator-name = "vcc-lcd-usb2";
    117 };
    118 
    119 &reg_dc5ldo {
    120 	regulator-min-microvolt = <700000>;
    121 	regulator-max-microvolt = <1320000>;
    122 	regulator-name = "vdd-cpus";
    123 };
    124 
    125 &reg_dcdc1 {
    126 	regulator-always-on;
    127 	regulator-min-microvolt = <3000000>;
    128 	regulator-max-microvolt = <3000000>;
    129 	regulator-name = "vcc-3v0";
    130 };
    131 
    132 &reg_dcdc2 {
    133 	regulator-min-microvolt = <700000>;
    134 	regulator-max-microvolt = <1320000>;
    135 	regulator-name = "vdd-gpu";
    136 };
    137 
    138 &reg_dcdc3 {
    139 	regulator-always-on;
    140 	regulator-min-microvolt = <700000>;
    141 	regulator-max-microvolt = <1320000>;
    142 	regulator-name = "vdd-cpu";
    143 };
    144 
    145 &reg_dcdc4 {
    146 	regulator-always-on;
    147 	regulator-min-microvolt = <700000>;
    148 	regulator-max-microvolt = <1320000>;
    149 	regulator-name = "vdd-sys-dll";
    150 };
    151 
    152 &reg_dcdc5 {
    153 	regulator-always-on;
    154 	regulator-min-microvolt = <1500000>;
    155 	regulator-max-microvolt = <1500000>;
    156 	regulator-name = "vcc-dram";
    157 };
    158 
    159 &reg_dldo1 {
    160 	regulator-min-microvolt = <3300000>;
    161 	regulator-max-microvolt = <3300000>;
    162 	regulator-name = "vcc-wifi";
    163 };
    164 
    165 /* Voltage source for I2C pullup resistors for I2C Bus 0 */
    166 &reg_dldo3 {
    167 	regulator-min-microvolt = <2800000>;
    168 	regulator-max-microvolt = <2800000>;
    169 	regulator-name = "vddio-csi";
    170 };
    171 
    172 &uart0 {
    173 	pinctrl-names = "default";
    174 	pinctrl-0 = <&uart0_ph_pins>;
    175 	status = "okay";
    176 };
    177 
    178 &usbphy {
    179 	usb1_vbus-supply = <&reg_dldo1>;
    180 	usb2_vbus-supply = <&reg_dc1sw>;
    181 	status = "okay";
    182 };
    183