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89 lines
1.8 KiB
89 lines
1.8 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/gpio/sifive,gpio.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: SiFive GPIO controller |
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maintainers: |
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- Paul Walmsley <[email protected]> |
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properties: |
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compatible: |
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items: |
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- enum: |
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- sifive,fu540-c000-gpio |
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- sifive,fu740-c000-gpio |
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- canaan,k210-gpiohs |
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- const: sifive,gpio0 |
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reg: |
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maxItems: 1 |
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interrupts: |
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description: |
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Interrupt mapping, one per GPIO. Maximum 32 GPIOs. |
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minItems: 1 |
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maxItems: 32 |
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interrupt-controller: true |
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"#interrupt-cells": |
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const: 2 |
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clocks: |
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maxItems: 1 |
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"#gpio-cells": |
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const: 2 |
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ngpios: |
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description: |
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The number of GPIOs available on the controller implementation. |
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It is 16 for the SiFive SoCs and 32 for the Canaan K210. |
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minimum: 1 |
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maximum: 32 |
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default: 16 |
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gpio-controller: true |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- interrupt-controller |
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- "#interrupt-cells" |
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- "#gpio-cells" |
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- gpio-controller |
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if: |
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properties: |
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compatible: |
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contains: |
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enum: |
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- sifive,fu540-c000-gpio |
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- sifive,fu740-c000-gpio |
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then: |
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required: |
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- clocks |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/clock/sifive-fu540-prci.h> |
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gpio@10060000 { |
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compatible = "sifive,fu540-c000-gpio", "sifive,gpio0"; |
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interrupt-parent = <&plic>; |
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interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>, |
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<17>, <18>, <19>, <20>, <21>, <22>; |
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reg = <0x10060000 0x1000>; |
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clocks = <&tlclk PRCI_CLK_TLCLK>; |
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gpio-controller; |
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#gpio-cells = <2>; |
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interrupt-controller; |
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#interrupt-cells = <2>; |
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}; |
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...
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