u-boot/arch/arm/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
Chen-Yu Tsai b5fe523bbc sunxi: H3/H5 Sync DT files from upstream Linux kernel as of next-20200108
Sync the device tree files and device tree header files from upstream
Linux kernel, as of 2020-01-08. The commit synced to in the sunxi repo

    98d25b0b266d Merge branch 'sunxi/dt-for-5.6' into sunxi/for-next

which is also part of next-20200108.

Changes brought in include:

  - cleanup of pinmux node names
  - addition of Security ID, MBUS, CSI, crypto engine, video codec,
    pmu, and thermal sensor device nodes for both SoCs
  - addition of deinterlacing engine device node on H3
  - cleanup of RTC device node and addition of its clocks
  - various board cleanups and improvements
    - removal of pinmux node for GPIO lines
    - cpufreq / DVFS
    - HDMI output
    - UART-based Bluetooth
    - audio codec
    - USB ports
  - new boards

Most of the changes don't concern U-boot.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-24 23:06:49 +05:30

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
*/
#include "sunxi-bananapi-m2-plus.dtsi"
/ {
/*
* Bananapi M2+ v1.2 uses a GPIO line to change the effective
* resistance on the CPU regulator's feedback pin.
*/
reg_vdd_cpux: vdd-cpux {
compatible = "regulator-gpio";
regulator-name = "vdd-cpux";
regulator-type = "voltage";
regulator-boot-on;
regulator-always-on;
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1300000>;
regulator-ramp-delay = <50>; /* 4ms */
gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
gpios-states = <0x1>;
states = <1100000 0>, <1300000 1>;
};
};
&cpu0 {
cpu-supply = <&reg_vdd_cpux>;
};