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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/interrupt-controller/nvidia,tegra20-ictlr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra20 Legacy Interrupt Controller
maintainers:
- Thierry Reding <treding@nvidia.com>
- Jonathan Hunter <jonathanh@nvidia.com>
description: >
All Tegra SoCs contain a legacy interrupt controller that routes interrupts to
the GIC, and also serves as a wakeup source. It is also referred to as
"ictlr", hence the name of the binding.
The HW block exposes a number of interrupt controllers, each implementing a
set of 32 interrupts.
Notes:
- Because this HW ultimately routes interrupts to the GIC, the
interrupt specifier must be that of the GIC.
- Only SPIs can use the ictlr as an interrupt parent. SGIs and PPIs
are explicitly forbidden.
properties:
compatible:
oneOf:
- items:
- enum:
- nvidia,tegra114-ictlr
- nvidia,tegra124-ictlr
- const: nvidia,tegra30-ictlr
- enum:
- nvidia,tegra20-ictlr
- nvidia,tegra30-ictlr
reg:
description: Each entry is a block of 32 interrupts
minItems: 4
maxItems: 5
interrupt-controller: true
'#interrupt-cells':
const: 3
required:
- compatible
- reg
- interrupt-controller
- '#interrupt-cells'
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
const: nvidia,tegra20-ictlr
then:
properties:
reg:
maxItems: 4
else:
properties:
reg:
minItems: 5
examples:
- |
interrupt-controller@60004000 {
compatible = "nvidia,tegra20-ictlr";
reg = <0x60004000 64>,
<0x60004100 64>,
<0x60004200 64>,
<0x60004300 64>;
interrupt-controller;
#interrupt-cells = <3>;
};
|
