[PATCH v14 1/4] Documentation: add sbsa-gwdt driver documentation

[fu . wei]

From: Fu Wei 

The sbsa-gwdt.txt documentation in devicetree/bindings/watchdog is for
introducing SBSA(Server Base System Architecture) Generic Watchdog
device node info into FDT.

Also add sbsa-gwdt introduction in watchdog-parameters.txt

Acked-by: Arnd Bergmann 
Acked-by: Rob Herring 
Signed-off-by: Fu Wei 
Reviewed-by: Guenter Roeck 
---
 .../devicetree/bindings/watchdog/sbsa-gwdt.txt | 31 ++
 Documentation/watchdog/watchdog-parameters.txt |  7 +
 2 files changed, 38 insertions(+)

diff --git a/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt 
b/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
new file mode 100644
index 000..6f2d5f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
@@ -0,0 +1,31 @@
+* SBSA (Server Base System Architecture) Generic Watchdog
+
+The SBSA Generic Watchdog Timer is used to force a reset of the system
+after two stages of timeout have elapsed.  A detailed definition of the
+watchdog timer can be found in the ARM document: ARM-DEN-0029 - Server
+Base System Architecture (SBSA)
+
+Required properties:
+- compatible: Should at least contain "arm,sbsa-gwdt".
+
+- reg: Each entry specifies the base physical address of a register frame
+  and the length of that frame; currently, two frames must be defined,
+  in this order:
+  1: Watchdog control frame;
+  2: Refresh frame.
+
+- interrupts: Should contain the Watchdog Signal 0 (WS0) SPI (Shared
+  Peripheral Interrupt) number of SBSA Generic Watchdog.
+
+Optional properties
+- timeout-sec: Watchdog timeout values (in seconds).
+
+Example for FVP Foundation Model v8:
+
+watchdog@2a44 {
+   compatible = "arm,sbsa-gwdt";
+   reg = <0x0 0x2a44 0 0x1000>,
+ <0x0 0x2a45 0 0x1000>;
+   interrupts = <0 27 4>;
+   timeout-sec = <30>;
+};
diff --git a/Documentation/watchdog/watchdog-parameters.txt 
b/Documentation/watchdog/watchdog-parameters.txt
index 9f9ec9f..ce7ae4e 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -284,6 +284,13 @@ sbc_fitpc2_wdt:
 margin: Watchdog margin in seconds (default 60s)
 nowayout: Watchdog cannot be stopped once started
 -
+sbsa_gwdt:
+timeout: Watchdog timeout in seconds. (default 10s)
+action: Watchdog action at the first stage timeout,
+   set to 0 to ignore, 1 to panic. (default=0)
+nowayout: Watchdog cannot be stopped once started
+   (default=kernel config parameter)
+-
 sc1200wdt:
 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
 io: io port
-- 
2.5.0

[PATCH v14 1/4] Documentation: add sbsa-gwdt driver documentation

[fu . wei]

From: Fu Wei 

The sbsa-gwdt.txt documentation in devicetree/bindings/watchdog is for
introducing SBSA(Server Base System Architecture) Generic Watchdog
device node info into FDT.

Also add sbsa-gwdt introduction in watchdog-parameters.txt

Acked-by: Arnd Bergmann 
Acked-by: Rob Herring 
Signed-off-by: Fu Wei 
Reviewed-by: Guenter Roeck 
---
 .../devicetree/bindings/watchdog/sbsa-gwdt.txt | 31 ++
 Documentation/watchdog/watchdog-parameters.txt |  7 +
 2 files changed, 38 insertions(+)

diff --git a/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt 
b/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
new file mode 100644
index 000..6f2d5f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
@@ -0,0 +1,31 @@
+* SBSA (Server Base System Architecture) Generic Watchdog
+
+The SBSA Generic Watchdog Timer is used to force a reset of the system
+after two stages of timeout have elapsed.  A detailed definition of the
+watchdog timer can be found in the ARM document: ARM-DEN-0029 - Server
+Base System Architecture (SBSA)
+
+Required properties:
+- compatible: Should at least contain "arm,sbsa-gwdt".
+
+- reg: Each entry specifies the base physical address of a register frame
+  and the length of that frame; currently, two frames must be defined,
+  in this order:
+  1: Watchdog control frame;
+  2: Refresh frame.
+
+- interrupts: Should contain the Watchdog Signal 0 (WS0) SPI (Shared
+  Peripheral Interrupt) number of SBSA Generic Watchdog.
+
+Optional properties
+- timeout-sec: Watchdog timeout values (in seconds).
+
+Example for FVP Foundation Model v8:
+
+watchdog@2a44 {
+   compatible = "arm,sbsa-gwdt";
+   reg = <0x0 0x2a44 0 0x1000>,
+ <0x0 0x2a45 0 0x1000>;
+   interrupts = <0 27 4>;
+   timeout-sec = <30>;
+};
diff --git a/Documentation/watchdog/watchdog-parameters.txt 
b/Documentation/watchdog/watchdog-parameters.txt
index 9f9ec9f..ce7ae4e 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -284,6 +284,13 @@ sbc_fitpc2_wdt:
 margin: Watchdog margin in seconds (default 60s)
 nowayout: Watchdog cannot be stopped once started
 -
+sbsa_gwdt:
+timeout: Watchdog timeout in seconds. (default 10s)
+action: Watchdog action at the first stage timeout,
+   set to 0 to ignore, 1 to panic. (default=0)
+nowayout: Watchdog cannot be stopped once started
+   (default=kernel config parameter)
+-
 sc1200wdt:
 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
 io: io port
-- 
2.5.0