Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: watchdog: Convert arm,sbsa-gwdt to DT schema
Convert the arm,sbsa-gwdt binding to DT schema format.
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Fu Wei <fu.wei@linaro.org>
Cc: linux-watchdog@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210607194022.3095736-1-robh@kernel.org
+51
-31
+51
Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
+51
Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
···
1
+
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2
+
%YAML 1.2
3
+
---
4
+
$id: http://devicetree.org/schemas/watchdog/arm,sbsa-gwdt.yaml#
5
+
$schema: http://devicetree.org/meta-schemas/core.yaml#
6
+
7
+
title: SBSA (Server Base System Architecture) Generic Watchdog
8
+
9
+
maintainers:
10
+
- Fu Wei <fu.wei@linaro.org>
11
+
12
+
description: |
13
+
The SBSA Generic Watchdog Timer is used to force a reset of the system after
14
+
two stages of timeout have elapsed. A detailed definition of the watchdog
15
+
timer can be found in the ARM document: ARM-DEN-0029 - Server Base System
16
+
Architecture (SBSA)
17
+
18
+
allOf:
19
+
- $ref: watchdog.yaml#
20
+
21
+
properties:
22
+
compatible:
23
+
const: arm,sbsa-gwdt
24
+
25
+
reg:
26
+
items:
27
+
- description: Watchdog control frame
28
+
- description: Refresh frame
29
+
30
+
interrupts:
31
+
description: The Watchdog Signal 0 (WS0) SPI (Shared Peripheral Interrupt)
32
+
maxItems: 1
33
+
34
+
required:
35
+
- compatible
36
+
- reg
37
+
- interrupts
38
+
39
+
unevaluatedProperties: false
40
+
41
+
examples:
42
+
- |
43
+
44
+
watchdog@2a440000 {
45
+
compatible = "arm,sbsa-gwdt";
46
+
reg = <0x2a440000 0x1000>,
47
+
<0x2a450000 0x1000>;
48
+
interrupts = <0 27 4>;
49
+
timeout-sec = <30>;
50
+
};
51
+
...
-31
Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
-31
Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
···
1
-
* SBSA (Server Base System Architecture) Generic Watchdog
2
-
3
-
The SBSA Generic Watchdog Timer is used to force a reset of the system
4
-
after two stages of timeout have elapsed. A detailed definition of the
5
-
watchdog timer can be found in the ARM document: ARM-DEN-0029 - Server
6
-
Base System Architecture (SBSA)
7
-
8
-
Required properties:
9
-
- compatible: Should at least contain "arm,sbsa-gwdt".
10
-
11
-
- reg: Each entry specifies the base physical address of a register frame
12
-
and the length of that frame; currently, two frames must be defined,
13
-
in this order:
14
-
1: Watchdog control frame;
15
-
2: Refresh frame.
16
-
17
-
- interrupts: Should contain the Watchdog Signal 0 (WS0) SPI (Shared
18
-
Peripheral Interrupt) number of SBSA Generic Watchdog.
19
-
20
-
Optional properties
21
-
- timeout-sec: Watchdog timeout values (in seconds).
22
-
23
-
Example for FVP Foundation Model v8:
24
-
25
-
watchdog@2a440000 {
26
-
compatible = "arm,sbsa-gwdt";
27
-
reg = <0x0 0x2a440000 0 0x1000>,
28
-
<0x0 0x2a450000 0 0x1000>;
29
-
interrupts = <0 27 4>;
30
-
timeout-sec = <30>;
31
-
};