From: Elad Nachman <enachman@xxxxxxxxxxx>
Add definitions and examples for Marvell AC5 variant
of the sbsa watchdog.
Marvell variant requires more memory definitions,
since the initialization is more complex, and involves
several register sets.
Signed-off-by: Elad Nachman <enachman@xxxxxxxxxxx>
---
.../bindings/watchdog/arm,sbsa-gwdt.yaml | 52 ++++++++++++++++++-
1 file changed, 50 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml b/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
index aa804f96acba..331e9aa7c2f7 100644
--- a/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
@@ -20,12 +20,17 @@ allOf:
properties:
compatible:
- const: arm,sbsa-gwdt
+ enum:
+ - arm,sbsa-gwdt
+ - marvell,ac5-wd
reg:
items:
- description: Watchdog control frame
- description: Refresh frame
+ - description: Marvell CPU control frame
+ - description: Marvell Management frame
+ - description: Marvell reset control unit frame
interrupts:
description: The Watchdog Signal 0 (WS0) SPI (Shared Peripheral Interrupt)
@@ -39,12 +44,55 @@ required:
unevaluatedProperties: false
examples:
+ # First example is for generic ARM one
+ # Next examples are for Marvell.
+ # They are organized as three sets:
+ # first set is for global watchdog, then CPU core #0 private watchdog,
+ # and finally CPU core #1 private watchdog
+ # Examples are given for AC5 or Ironman. For AC5X SOC, the last
+ # reg item's low address (0x840F8000) should be replaced with 0x944F8000
- |
watchdog@2a440000 {
compatible = "arm,sbsa-gwdt";
reg = <0x2a440000 0x1000>,
- <0x2a450000 0x1000>;
+ <0x2a450000 0x1000>,
+ <0x0 0x0>,
+ <0x0 0x0>,
+ <0x0 0x0>;
interrupts = <0 27 4>;
timeout-sec = <30>;
};
+ - |
+ watchdog@80216000 {
+ compatible = "marvell,ac5-wd";
+ reg = <0x80216000 0x1000>,
+ <0x80215000 0x1000>,
+ <0x80210000 0x1000>,
+ <0x7f900000 0x1000>,
+ <0x840F8000 0x1000>;
+ interrupts = <0 124 4>;
+ timeout-sec = <30>;
+ };
+ - |
+ watchdog@80212000 {
+ compatible = "marvell,ac5-wd";
+ reg = <0x80212000 0x1000>,
+ <0x80211000 0x1000>,
+ <0x80210000 0x1000>,
+ <0x7f900000 0x1000>,
+ <0x840F8000 0x1000>;
+ interrupts = <0 122 4>;
+ timeout-sec = <30>;
+ };
+ - |
+ watchdog@80214000 {
+ compatible = "marvell,ac5-wd";
+ reg = <0x80214000 0x1000>,
+ <0x80213000 0x1000>,
+ <0x80210000 0x1000>,
+ <0x7f900000 0x1000>,
+ <0x840F8000 0x1000>;
+ interrupts = <0 122 4>;
+ timeout-sec = <30>;
+ };
...
--
2.25.1
