Documentation/devicetree/bindings/arm/twd.txt

   1 * ARM Timer Watchdog
   2
   3 ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
   4 Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
   5 and watchdog.
   6
   7 The TWD is usually attached to a GIC to deliver its two per-processor
   8 interrupts.
   9
  10 ** Timer node required properties:
  11
  12 - compatible : Should be one of:
  13         "arm,cortex-a9-twd-timer"
  14         "arm,cortex-a5-twd-timer"
  15         "arm,arm11mp-twd-timer"
  16
  17 - interrupts : One interrupt to each core
  18
  19 - reg : Specify the base address and the size of the TWD timer
  20         register window.
  21
  22 Example:
  23
  24         twd-timer@2c000600 {
  25                 compatible = "arm,arm11mp-twd-timer"";
  26                 reg = <0x2c000600 0x20>;
  27                 interrupts = <1 13 0xf01>;
  28         };
  29
  30 ** Watchdog node properties:
  31
  32 - compatible : Should be one of:
  33         "arm,cortex-a9-twd-wdt"
  34         "arm,cortex-a5-twd-wdt"
  35         "arm,arm11mp-twd-wdt"
  36
  37 - interrupts : One interrupt to each core
  38
  39 - reg : Specify the base address and the size of the TWD watchdog
  40         register window.
  41
  42 Example:
  43
  44         twd-watchdog@2c000620 {
  45                 compatible = "arm,arm11mp-twd-wdt";
  46                 reg = <0x2c000620 0x20>;
  47                 interrupts = <1 14 0xf01>;
  48         };