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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/remoteproc/ti,am3352-wkup-m3.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI AM33xx/AM43xx Wakeup M3 Remote Processor
maintainers:
- Suman Anna <s-anna@ti.com>
- Bhargav Joshi <j.bhargav.u@gmail.com>
description:
The TI AM33xx and AM43xx family of devices use a small Cortex M3 co-processor
(commonly referred to as Wakeup M3 or CM3) to help with various low power
tasks that cannot be controlled from the MPU. This CM3 processor requires a
firmware binary to accomplish this. A wkup_m3 device node is used to
represent the Wakeup M3 processor instance within the SoC. It is added as a
child node of the parent interconnect bus (l4_wkup) through which it is
accessible to the MPU.
properties:
compatible:
enum:
- ti,am3352-wkup-m3
- ti,am4372-wkup-m3
reg:
items:
- description: Address range for UMEM
- description: Address range for DMEM
reg-names:
items:
- const: umem
- const: dmem
ti,pm-firmware:
$ref: /schemas/types.yaml#/definitions/string
description:
Name of firmware file to be used for loading and booting the wkup_m3
remote processor.
resets:
maxItems: 1
reset-names:
items:
- const: rstctrl
ti,hwmods:
$ref: /schemas/types.yaml#/definitions/string
deprecated: true
description:
Name of the hwmod associated with the wkupm3 device.
required:
- compatible
- reg
- reg-names
- ti,pm-firmware
dependencies:
resets: [reset-names]
reset-names: [resets]
additionalProperties: false
examples:
- |
target-module@0 {
compatible = "ti,sysc-omap4", "ti,sysc";
reg = <0x0 0x4>;
reg-names = "rev";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x00000000 0x00000000 0x4000>,
<0x00080000 0x00080000 0x2000>;
cpu@0 {
compatible = "ti,am3352-wkup-m3";
reg = <0x00000000 0x4000>,
<0x00080000 0x2000>;
reg-names = "umem", "dmem";
resets = <&prm_wkup 3>;
reset-names = "rstctrl";
ti,pm-firmware = "am335x-pm-firmware.elf";
};
};
|
