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Commit ac61cf8a authored by Florian Fainelli's avatar Florian Fainelli
Browse files

dt-bindings: Add documentation for the BCM63138 timer and syscon-reboot 



A timer node and a syscon-reboot node are required for software reboot
to work on BCM63138, document these two nodes in the platform binding.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
parent 592e2ddf

Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt

+34 −0
Original line number Original line Diff line number Diff line
@@ -49,3 +49,37 @@ Example: 
		compatible = "brcm,bcm63138-bootlut";

		compatible = "brcm,bcm63138-bootlut";

		reg = <0x8000 0x50>;

		reg = <0x8000 0x50>;

	};

	};



=======

reboot

------

Two nodes are required for software reboot: a timer node and a syscon-reboot node.



Timer node:



- compatible: Must be "brcm,bcm6328-timer", "syscon"

- reg: Register base address and length



Syscon reboot node:



See Documentation/devicetree/bindings/power/reset/syscon-reboot.txt for the

detailed list of properties, the two values defined below are specific to the

BCM6328-style timer:



- offset: Should be 0x34 to denote the offset of the TIMER_WD_TIMER_RESET register

  from the beginning of the TIMER block

- mask: Should be 1 for the SoftRst bit.



Example:



	timer: timer@80 {

		compatible = "brcm,bcm6328-timer", "syscon";

		reg = <0x80 0x3c>;

	};



	reboot {

		compatible = "syscon-reboot";

		regmap = <&timer>;

		offset = <0x34>;

		mask = <0x1>;

	};