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      1 /*
      2  * Copyright 2015 Chen-Yu Tsai <wens (at) csie.org>
      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 #include <dt-bindings/pinctrl/sun4i-a10.h>
     49 
     50 / {
     51 	model = "Sinlinx SinA31s Core Board";
     52 	compatible = "sinlinx,sina31s", "allwinner,sun6i-a31s";
     53 
     54 	aliases {
     55 		serial0 = &uart0;
     56 	};
     57 };
     58 
     59 &cpu0 {
     60 	cpu-supply = <&reg_dcdc3>;
     61 };
     62 
     63 /* eMMC on core board */
     64 &mmc3 {
     65 	pinctrl-names = "default";
     66 	pinctrl-0 = <&mmc3_8bit_emmc_pins>;
     67 	vmmc-supply = <&reg_dcdc1>;
     68 	vqmmc-supply = <&reg_dcdc1>;
     69 	bus-width = <8>;
     70 	non-removable;
     71 	cap-mmc-hw-reset;
     72 	status = "okay";
     73 };
     74 
     75 /* AXP221s PMIC on core board */
     76 &p2wi {
     77 	status = "okay";
     78 
     79 	axp22x: pmic@68 {
     80 		compatible = "x-powers,axp221";
     81 		reg = <0x68>;
     82 		interrupt-parent = <&nmi_intc>;
     83 		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
     84 	};
     85 };
     86 
     87 #include "axp22x.dtsi"
     88 
     89 &reg_aldo3 {
     90 	regulator-always-on;
     91 	regulator-min-microvolt = <2700000>;
     92 	regulator-max-microvolt = <3300000>;
     93 	regulator-name = "avcc";
     94 };
     95 
     96 &reg_dc5ldo {
     97 	regulator-min-microvolt = <700000>;
     98 	regulator-max-microvolt = <1320000>;
     99 	regulator-name = "vdd-cpus";
    100 };
    101 
    102 &reg_dcdc1 {
    103 	regulator-always-on;
    104 	regulator-min-microvolt = <3000000>;
    105 	regulator-max-microvolt = <3000000>;
    106 	regulator-name = "vcc-3v0";
    107 };
    108 
    109 &reg_dcdc2 {
    110 	regulator-min-microvolt = <700000>;
    111 	regulator-max-microvolt = <1320000>;
    112 	regulator-name = "vdd-gpu";
    113 };
    114 
    115 &reg_dcdc3 {
    116 	regulator-always-on;
    117 	regulator-min-microvolt = <700000>;
    118 	regulator-max-microvolt = <1320000>;
    119 	regulator-name = "vdd-cpu";
    120 };
    121 
    122 &reg_dcdc4 {
    123 	regulator-always-on;
    124 	regulator-min-microvolt = <700000>;
    125 	regulator-max-microvolt = <1320000>;
    126 	regulator-name = "vdd-sys-dll";
    127 };
    128 
    129 &reg_dcdc5 {
    130 	regulator-always-on;
    131 	regulator-min-microvolt = <1500000>;
    132 	regulator-max-microvolt = <1500000>;
    133 	regulator-name = "vcc-dram";
    134 };
    135 
    136 /* UART0 pads available on core board */
    137 &uart0 {
    138 	pinctrl-names = "default";
    139 	pinctrl-0 = <&uart0_pins_a>;
    140 	status = "okay";
    141 };
    142 
    143