ARM AMBA Primecell SP805 Watchdog
+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" & "arm,primecell"
-- reg: Should contain location and length for watchdog timer register.
-- interrupts: Should contain the list of watchdog timer interrupts.
-- clocks: clocks driving the watchdog timer hardware. This list should be 2
- clocks. With 2 clocks, the order is wdogclk clock, apb_pclk.
+- compatible: Should be "arm,sp805" & "arm,primecell"
+- reg: Should contain location and length for watchdog timer register
+- clocks: Clocks driving the watchdog timer hardware. This list should be
+ 2 clocks. With 2 clocks, the order is wdog_clk, apb_pclk
+ wdog_clk can be equal to or be a sub-multiple of the apb_pclk
+ frequency
+- clock-names: Shall be "wdog_clk" for first clock and "apb_pclk" for the
+ second one
+
+Optional properties:
+- interrupts: Should specify WDT interrupt number
Example:
watchdog@66090000 {
compatible = "arm,sp805", "arm,primecell";
reg = <0x66090000 0x1000>;
interrupts = <GIC_SPI 406 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&apb_pclk>,<&apb_pclk>;
- clock-names = "wdogclk", "apb_pclk";
+ clocks = <&wdt_clk>, <&apb_pclk>;
+ clock-names = "wdog_clk", "apb_pclk";
};
+++ /dev/null
-* 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";
- };
-