2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 21:24:00 +08:00
linux-next/Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt
Peter Crosthwaite 0385d44640 devicetree: cadence_ttc: Document binding for timer width
Modern TTC implementations can extend the timer width to 32 bit. This
feature is not self identifying so the driver needs to be made aware
via device tree.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-05-28 08:45:24 +02:00

22 lines
547 B
Plaintext

Cadence TTC - Triple Timer Counter
Required properties:
- compatible : Should be "cdns,ttc".
- reg : Specifies base physical address and size of the registers.
- interrupts : A list of 3 interrupts; one per timer channel.
- clocks: phandle to the source clock
Optional properties:
- timer-width: Bit width of the timer, necessary if not 16.
Example:
ttc0: ttc0@f8001000 {
interrupt-parent = <&intc>;
interrupts = < 0 10 4 0 11 4 0 12 4 >;
compatible = "cdns,ttc";
reg = <0xF8001000 0x1000>;
clocks = <&cpu_clk 3>;
timer-width = <32>;
};