1* ARM Timer Watchdog 2 3ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core 4Timer-Watchdog (aka TWD), which provides both a per-cpu local timer 5and watchdog. 6 7The TWD is usually attached to a GIC to deliver its two per-processor 8interrupts. 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 22Example: 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 42Example: 43 44 twd-watchdog@2c000620 { 45 compatible = "arm,arm11mp-twd-wdt"; 46 reg = <0x2c000620 0x20>; 47 interrupts = <1 14 0xf01>; 48 }; 49