xref: /linux/arch/arm/boot/dts/allwinner/sunxi-bananapi-m2-plus-v1.2.dtsi (revision 24168c5e6dfbdd5b414f048f47f75d64533296ca) 
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};
43