admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

dt-bindings: mailbox: Convert apm,xgene-slimpro-mbox to DT schema

Browse Source 
Convert APM X-Gene slimpro-mbox binding to DT schema format. It's a
straight-forward conversion.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
This commit is contained in:
Rob Herring (Arm)
2025-10-13 16:31:10 -05:00
parent 3a86608788
commit ce1e204a51
2 changed files with 62 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

62
Documentation/devicetree/bindings/mailbox/apm,xgene-slimpro-mbox.yaml Normal file
View File

@@ -0,0 +1,62 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/apm,xgene-slimpro-mbox.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: APM X-Gene SLIMpro mailbox
maintainers:
- Khuong Dinh <khuong@os.amperecomputing.com>
description:
The APM X-Gene SLIMpro mailbox is used to communicate messages between
the ARM64 processors and the Cortex M3 (dubbed SLIMpro). It uses a simple
interrupt based door bell mechanism and can exchange simple messages using the
internal registers.
properties:
compatible:
const: apm,xgene-slimpro-mbox
reg:
maxItems: 1
interrupts:
items:
- description: mailbox channel 0 doorbell
- description: mailbox channel 1 doorbell
- description: mailbox channel 2 doorbell
- description: mailbox channel 3 doorbell
- description: mailbox channel 4 doorbell
- description: mailbox channel 5 doorbell
- description: mailbox channel 6 doorbell
- description: mailbox channel 7 doorbell
'#mbox-cells':
description: Number of mailbox channel.
const: 1
required:
- compatible
- reg
- interrupts
- '#mbox-cells'
additionalProperties: false
examples:
- |
mailbox@10540000 {
compatible = "apm,xgene-slimpro-mbox";
reg = <0x10540000 0xa000>;
#mbox-cells = <1>;
interrupts = <0x0 0x0 0x4>,
<0x0 0x1 0x4>,
<0x0 0x2 0x4>,
<0x0 0x3 0x4>,
<0x0 0x4 0x4>,
<0x0 0x5 0x4>,
<0x0 0x6 0x4>,
<0x0 0x7 0x4>;
};

35
Documentation/devicetree/bindings/mailbox/xgene-slimpro-mailbox.txt
View File

@@ -1,35 +0,0 @@
The APM X-Gene SLIMpro mailbox is used to communicate messages between
the ARM64 processors and the Cortex M3 (dubbed SLIMpro). It uses a simple
interrupt based door bell mechanism and can exchange simple messages using the
internal registers.
There are total of 8 interrupts in this mailbox. Each used for an individual
door bell (or mailbox channel).
Required properties:
- compatible: Should be as "apm,xgene-slimpro-mbox".
- reg: Contains the mailbox register address range.
- interrupts: 8 interrupts must be from 0 to 7, interrupt 0 define the
the interrupt for mailbox channel 0 and interrupt 1 for
mailbox channel 1 and so likewise for the reminder.
- #mbox-cells: only one to specify the mailbox channel number.
Example:
Mailbox Node:
mailbox: mailbox@10540000 {
compatible = "apm,xgene-slimpro-mbox";
reg = <0x0 0x10540000 0x0 0xa000>;
#mbox-cells = <1>;
interrupts = <0x0 0x0 0x4>,
<0x0 0x1 0x4>,
<0x0 0x2 0x4>,
<0x0 0x3 0x4>,
<0x0 0x4 0x4>,
<0x0 0x5 0x4>,
<0x0 0x6 0x4>,
<0x0 0x7 0x4>,
};