summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt')
-rw-r--r--Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt35
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt b/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt
new file mode 100644
index 000000000..75b265a04
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/alphascale-asm9260.txt
@@ -0,0 +1,35 @@
+Alphascale asm9260 Watchdog timer
+
+Required properties:
+
+- compatible : should be "alphascale,asm9260-wdt".
+- reg : Specifies base physical address and size of the registers.
+- clocks : the clocks feeding the watchdog timer. See clock-bindings.txt
+- clock-names : should be set to
+ "mod" - source for tick counter.
+ "ahb" - ahb gate.
+- resets : phandle pointing to the system reset controller with
+ line index for the watchdog.
+- reset-names : should be set to "wdt_rst".
+
+Optional properties:
+- timeout-sec : shall contain the default watchdog timeout in seconds,
+ if unset, the default timeout is 30 seconds.
+- alphascale,mode : three modes are supported
+ "hw" - hw reset (default).
+ "sw" - sw reset.
+ "debug" - no action is taken.
+
+Example:
+
+watchdog0: watchdog@80048000 {
+ compatible = "alphascale,asm9260-wdt";
+ reg = <0x80048000 0x10>;
+ clocks = <&acc CLKID_SYS_WDT>, <&acc CLKID_AHB_WDT>;
+ clock-names = "mod", "ahb";
+ interrupts = <55>;
+ resets = <&rst WDT_RESET>;
+ reset-names = "wdt_rst";
+ timeout-sec = <30>;
+ alphascale,mode = "hw";
+};