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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/sp810.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Versatile Express SP810 System Controller
maintainers:
- Andre Przywara <andre.przywara@arm.com>
description:
The Arm SP810 system controller provides clocks, timers and a watchdog.
# We need a select here so we don't match all nodes with 'arm,primecell'
select:
properties:
compatible:
contains:
const: arm,sp810
required:
- compatible
properties:
compatible:
items:
- const: arm,sp810
- const: arm,primecell
reg:
maxItems: 1
clock-names:
items:
- const: refclk
- const: timclk
- const: apb_pclk
clocks:
items:
- description: reference clock
- description: timer clock
- description: APB register access clock
"#clock-cells":
const: 1
clock-output-names:
maxItems: 4
assigned-clocks:
maxItems: 4
assigned-clock-parents:
maxItems: 4
additionalProperties: false
required:
- compatible
- reg
- clocks
- clock-names
- "#clock-cells"
examples:
- |
sysctl@20000 {
compatible = "arm,sp810", "arm,primecell";
reg = <0x020000 0x1000>;
clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>;
clock-names = "refclk", "timclk", "apb_pclk";
#clock-cells = <1>;
clock-output-names = "timerclken0", "timerclken1",
"timerclken2", "timerclken3";
assigned-clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>,
<&v2m_sysctl 3>, <&v2m_sysctl 3>;
assigned-clock-parents = <&v2m_refclk1mhz>, <&v2m_refclk1mhz>,
<&v2m_refclk1mhz>, <&v2m_refclk1mhz>;
};
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