Commit 8c21ead3 authored by Anson Huang's avatar Anson Huang Committed by Wim Van Sebroeck
Browse files

dt-bindings: watchdog: move i.MX system controller watchdog binding to SCU 



i.MX system controller watchdog depends on SCU driver to support
interrupt function, so it needs to be subnode of SCU node in DT,
binding doc should be moved to fsl,scu.txt as well.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 15f7d7fc

Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt

+15 −0
Original line number Diff line number Diff line
@@ -133,6 +133,16 @@ RTC bindings based on SCU Message Protocol 
Required properties:

- compatible: should be "fsl,imx8qxp-sc-rtc";



Watchdog bindings based on SCU Message Protocol

------------------------------------------------------------



Required properties:

- compatible: should be:

              "fsl,imx8qxp-sc-wdt"

              followed by "fsl,imx-sc-wdt";

Optional properties:

- timeout-sec: contains the watchdog timeout in seconds.



Example (imx8qxp):

-------------

aliases {
@@ -185,6 +195,11 @@ firmware { 
		rtc: rtc {

			compatible = "fsl,imx8qxp-sc-rtc";

		};



		watchdog {

			compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";

			timeout-sec = <60>;

		};

	};

};

Documentation/devicetree/bindings/watchdog/fsl-imx-sc-wdt.txt

deleted100644 → 0
+0 −24
Original line number Diff line number Diff line 
* Freescale i.MX System Controller Watchdog



i.MX system controller watchdog is for i.MX SoCs with system controller inside,

the watchdog is managed by system controller, users can ONLY communicate with

system controller from secure mode for watchdog operations, so Linux i.MX system

controller watchdog driver will call ARM SMC API and trap into ARM-Trusted-Firmware

for watchdog operations, ARM-Trusted-Firmware is running at secure EL3 mode and

it will request system controller to execute the watchdog operation passed from

Linux kernel.



Required properties:

- compatible:	Should be :

		"fsl,imx8qxp-sc-wdt"

		followed by "fsl,imx-sc-wdt";



Optional properties:

- timeout-sec : Contains the watchdog timeout in seconds.



Examples:



watchdog {

	compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";

	timeout-sec = <60>;

};

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