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This Microcontroller is present on the Khadas VIM1, VIM2, VIM3 and Edge boards. It has multiple boot control features like password check, power-on options, power-off control and system FAN control on recent boards. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
44 lines
1,021 B
YAML
44 lines
1,021 B
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/khadas,mcu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Khadas on-board Microcontroller Device Tree Bindings
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maintainers:
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- Neil Armstrong <narmstrong@baylibre.com>
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description: |
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Khadas embeds a microcontroller on their VIM and Edge boards adding some
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system feature as PWM Fan control (for VIM2 rev14 or VIM3), User memory
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storage, IR/Key resume control, system power LED control and more.
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properties:
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compatible:
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enum:
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- khadas,mcu # MCU revision is discoverable
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"#cooling-cells": # Only needed for boards having FAN control feature
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const: 2
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reg:
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maxItems: 1
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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khadas_mcu: system-controller@18 {
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compatible = "khadas,mcu";
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reg = <0x18>;
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#cooling-cells = <2>;
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};
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};
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