arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi

   1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
   2 /*
   3  * Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
   4  */
   5
   6 #include "sunxi-bananapi-m2-plus.dtsi"
   7
   8 / {
   9         /*
  10          * Bananapi M2+ v1.2 uses a GPIO line to change the effective
  11          * resistance on the CPU regulator's feedback pin.
  12          */
  13         reg_vdd_cpux: vdd-cpux {
  14                 compatible = "regulator-gpio";
  15                 regulator-name = "vdd-cpux";
  16                 regulator-type = "voltage";
  17                 regulator-boot-on;
  18                 regulator-always-on;
  19                 regulator-min-microvolt = <1108475>;
  20                 regulator-max-microvolt = <1308475>;
  21                 regulator-ramp-delay = <50>; /* 4ms */
  22                 gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
  23                 gpios-states = <0x1>;
  24                 states = <1108475 0>, <1308475 1>;
  25         };
  26 };
  27
  28 &cpu0 {
  29         cpu-supply = <&reg_vdd_cpux>;
  30 };
  31
  32 &cpu1 {
  33         cpu-supply = <&reg_vdd_cpux>;
  34 };
  35
  36 &cpu2 {
  37         cpu-supply = <&reg_vdd_cpux>;
  38 };
  39
  40 &cpu3 {
  41         cpu-supply = <&reg_vdd_cpux>;
  42 };