70 lines
1.5 KiB
YAML
70 lines
1.5 KiB
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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$id: http://devicetree.org/schemas/mfd/brcm,twd.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom's Timer-Watchdog (aka TWD)
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maintainers:
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- Rafał Miłecki <rafal@milecki.pl>
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description: |
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Broadcom has a Timer-Watchdog block used in multiple SoCs (e.g., BCM4908,
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BCM63xx, BCM7038). There are few variants available (they differ slightly in
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registers layout). This block consists of: timers, watchdog and optionally a
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software reset handler.
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properties:
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compatible:
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items:
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- enum:
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- brcm,bcm4908-twd
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- brcm,bcm7038-twd
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- const: simple-mfd
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- const: syscon
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reg:
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maxItems: 1
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ranges: true
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"#address-cells":
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const: 1
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"#size-cells":
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const: 1
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patternProperties:
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'^timer@[a-f0-9]+$':
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$ref: /schemas/timer/brcm,bcmbca-timer.yaml
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'^watchdog@[a-f0-9]+$':
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$ref: /schemas/watchdog/brcm,bcm7038-wdt.yaml
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additionalProperties: false
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required:
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- reg
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examples:
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- |
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timer-mfd@ff800400 {
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compatible = "brcm,bcm4908-twd", "simple-mfd", "syscon";
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reg = <0xff800400 0x4c>;
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ranges = <0x00000000 0xff800400 0x4c>;
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#address-cells = <1>;
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#size-cells = <1>;
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timer@0 {
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compatible = "brcm,bcm63138-timer";
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reg = <0x0 0x28>;
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};
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watchdog@28 {
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compatible = "brcm,bcm7038-wdt";
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reg = <0x28 0x8>;
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};
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};
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