# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2022 Texas Instruments Incorporated
%YAML 1.2
---
$id:
http://devicetree.org/schemas/misc/ti,j721e-esm.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments K3 ESM
maintainers:
- Neha Malcom Francis <n-francis@ti.com>
description:
The ESM (Error Signaling Module) is an IP block on TI K3 devices
that allows handling of safety events somewhat similar to what interrupt
controller would do. The safety signals have their separate paths within
the SoC, and they are handled by the ESM, which routes them to the proper
destination, which can be system reset, interrupt controller, etc. In the
simplest configuration the signals are just routed to reset the SoC.
properties:
compatible:
const: ti,j721e-esm
reg:
maxItems: 1
ti,esm-pins:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
integer array of ESM interrupt pins to route to external event pin
which can be used to reset the SoC.
minItems: 1
maxItems: 255
required:
- compatible
- reg
- ti,esm-pins
additionalProperties: false
examples:
- |
bus {
#address-cells = <2>;
#size-cells = <2>;
esm@700000 {
compatible = "ti,j721e-esm";
reg = <0x0 0x700000 0x0 0x1000>;
ti,esm-pins = <344>, <345>;
};
};
