110 lines
2.6 KiB
YAML
110 lines
2.6 KiB
YAML
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# 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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$id: http://devicetree.org/schemas/mfd/canaan,k210-sysctl.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Canaan Kendryte K210 System Controller
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maintainers:
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- Damien Le Moal <damien.lemoal@wdc.com>
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description:
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Canaan Inc. Kendryte K210 SoC system controller which provides a
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register map for controlling the clocks, reset signals and pin power
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domains of the SoC.
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properties:
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compatible:
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items:
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- const: canaan,k210-sysctl
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- const: syscon
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- const: simple-mfd
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clocks:
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maxItems: 1
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description:
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System controller Advanced Power Bus (APB) interface clock source.
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clock-names:
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items:
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- const: pclk
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reg:
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maxItems: 1
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clock-controller:
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# Child node
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type: object
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$ref: "../clock/canaan,k210-clk.yaml"
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description:
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Clock controller for the SoC clocks. This child node definition
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should follow the bindings specified in
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Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml.
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reset-controller:
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# Child node
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type: object
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$ref: "../reset/canaan,k210-rst.yaml"
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description:
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Reset controller for the SoC. This child node definition
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should follow the bindings specified in
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Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml.
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syscon-reboot:
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# Child node
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type: object
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$ref: "../power/reset/syscon-reboot.yaml"
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description:
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Reboot method for the SoC. This child node definition
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should follow the bindings specified in
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Documentation/devicetree/bindings/power/reset/syscon-reboot.yaml.
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required:
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- compatible
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- clocks
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- reg
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- clock-controller
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/k210-clk.h>
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#include <dt-bindings/reset/k210-rst.h>
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clocks {
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in0: oscllator {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <26000000>;
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};
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};
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sysctl: syscon@50440000 {
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compatible = "canaan,k210-sysctl",
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"syscon", "simple-mfd";
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reg = <0x50440000 0x100>;
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clocks = <&sysclk K210_CLK_APB1>;
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clock-names = "pclk";
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sysclk: clock-controller {
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#clock-cells = <1>;
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compatible = "canaan,k210-clk";
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clocks = <&in0>;
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};
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sysrst: reset-controller {
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compatible = "canaan,k210-rst";
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#reset-cells = <1>;
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};
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reboot: syscon-reboot {
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compatible = "syscon-reboot";
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regmap = <&sysctl>;
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offset = <48>;
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mask = <1>;
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value = <1>;
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};
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};
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