From bfa43267bc1c6484fe63570774c381ddc7b32f40 Mon Sep 17 00:00:00 2001 From: Purna Chandra Mandal Date: Fri, 26 Feb 2016 10:20:21 -0700 Subject: [PATCH] dt/bindings: Add bindings for PIC32 deadman timer peripheral Document the devicetree bindings for the deadman timer peripheral found on Microchip PIC32 SoC class devices. Signed-off-by: Purna Chandra Mandal Signed-off-by: Joshua Henderson Acked-by: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Ian Campbell Cc: Kumar Gala Cc: Wim Van Sebroeck Cc: Guenter Roeck Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: linux-watchdog@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12702/ Signed-off-by: Ralf Baechle --- .../bindings/watchdog/microchip,pic32-dmt.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/microchip,pic32-dmt.txt diff --git a/Documentation/devicetree/bindings/watchdog/microchip,pic32-dmt.txt b/Documentation/devicetree/bindings/watchdog/microchip,pic32-dmt.txt new file mode 100644 index 0000000..852f694 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/microchip,pic32-dmt.txt @@ -0,0 +1,19 @@ +* Microchip PIC32 Deadman Timer + +The deadman timer is used to reset the processor in the event of a software +malfunction. It is a free-running instruction fetch timer, which is clocked +whenever an instruction fetch occurs until a count match occurs. + +Required properties: +- compatible: must be "microchip,pic32mzda-dmt". +- reg: physical base address of the controller and length of memory mapped + region. +- clocks: phandle of parent clock (should be &PBCLK7). + +Example: + + watchdog@1f800a00 { + compatible = "microchip,pic32mzda-dmt"; + reg = <0x1f800a00 0x80>; + clocks = <&PBCLK7>; + }; -- 2.7.4