[PATCH linux dev-5.8 v2 05/11] dt-binding: watchdog: Add DT restart priority and reset type

Tomer Maimon tmaimon77 at gmail.com
Wed Jan 6 00:45:02 AEDT 2021


Add device tree restart priority documentation and
three reset types documentation.

Signed-off-by: Tomer Maimon <tmaimon77 at gmail.com>
---
 .../bindings/watchdog/nuvoton,npcm-wdt.txt    | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
index 6d593003c933..f6e0ea3e3c78 100644
--- a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
@@ -17,6 +17,34 @@ Required clocking property, have to be one of:
 
 Optional properties:
 - timeout-sec : Contains the watchdog timeout in seconds
+- nuvoton,restart-priority - Contains the card restart priority.
+- nuvoton,card-reset-type = "porst|corst|wd0|wd1|wd2|sw1|sw2|sw3|sw4"
+  Contains the card reset type for checking and indicating
+  the last card reset status (WDIOF_CARDRESET)
+
+  If 'nuvoton,card-reset-type' is not specified the default is porst
+
+  Reset types:
+       - porst: Power reset
+       - corst: Core reset
+	   - wdX : Watchdog reset X (X represante 0-2)
+	   - swX : Software reset X (X represante 1-4)
+
+- nuvoton,ext1-reset-type = "porst|corst|wd0|wd1|wd2|sw1|sw2|sw3|sw4"
+  Contains the external 2 reset type for checking and indicating
+  the last external 2 reset status (WDIOF_EXTERN1)
+
+  If 'nuvoton,card-reset-type' is not specified the default is wd0.
+
+  Reset types are the same as in nuvoton,card-reset-type property.
+
+- nuvoton,ext2-reset-type = "porst|corst|wd0|wd1|wd2|sw1|sw2|sw3|sw4"
+  Contains the external 2 reset type for checking and indicating
+  the last external 2 reset status (WDIOF_EXTERN2)
+
+  If 'nuvoton,card-reset-type' is not specified the default is sw1.
+
+  Reset types are the same as in nuvoton,card-reset-type property.
 
 Example:
 
@@ -25,4 +53,8 @@ timer at f000801c {
     interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
     reg = <0xf000801c 0x4>;
     clocks = <&clk NPCM7XX_CLK_TIMER>;
+	nuvoton,restart-priority = <155>;
+	nuvoton,card-reset-type = "porst";
+	nuvoton,ext1-reset-type = "wd1";
+	nuvoton,ext2-reset-type = "sw2";
 };
-- 
2.22.0



More information about the openbmc mailing list