| * ARM SP805 Watchdog Timer (WDT) Controller |
| |
| SP805 WDT is a ARM Primecell Peripheral and has a standard-id register that |
| can be used to identify the peripheral type, vendor, and revision. |
| This value can be used for driver matching. |
| |
| As SP805 WDT is a primecell IP, it follows the base bindings specified in |
| 'arm/primecell.txt' |
| |
| Required properties: |
| - compatible : Should be "arm,sp805-wdt", "arm,primecell" |
| - reg : Base address and size of the watchdog timer registers. |
| - clocks : From common clock binding. |
| First clock is PCLK and the second is WDOGCLK. |
| WDOGCLK can be equal to or be a sub-multiple of the PCLK frequency. |
| - clock-names : From common clock binding. |
| Shall be "apb_pclk" for first clock and "wdog_clk" for the |
| second one. |
| |
| Optional properties: |
| - interrupts : Should specify WDT interrupt number. |
| |
| Examples: |
| |
| cluster1_core0_watchdog: wdt@c000000 { |
| compatible = "arm,sp805-wdt", "arm,primecell"; |
| reg = <0x0 0xc000000 0x0 0x1000>; |
| clocks = <&clockgen 4 3>, <&clockgen 4 3>; |
| clock-names = "apb_pclk", "wdog_clk"; |
| }; |
| |