Re: [PATCH v5 2/3] clocksource: keystone: add bindings for keystone timer

[Rob Herring <robherring2@gmail.com>]

On Wed, Feb 5, 2014 at 7:47 AM, Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> wrote:
> This patch provides bindings for the 64-bit timer in the KeyStone
> architecture devices. The timer can be configured as a general-purpose 64-bit
> timer, dual general-purpose 32-bit timers. When configured as dual 32-bit
> timers, each half can operate in conjunction (chain mode) or independently
> (unchained mode) of each other.

This is software configurable or h/w design time configurations?

Rob

>
> It is global timer is a free running up-counter and can generate interrupt
> when the counter reaches preset counter values.
>
> Documentation:
> http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
>
> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
> ---
>  .../bindings/timer/ti,keystone-timer.txt           | 29 ++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/timer/ti,keystone-timer.txt
>
> diff --git a/Documentation/devicetree/bindings/timer/ti,keystone-timer.txt b/Documentation/devicetree/bindings/timer/ti,keystone-timer.txt
> new file mode 100644
> index 0000000..5fbe361
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/ti,keystone-timer.txt
> @@ -0,0 +1,29 @@
> +* Device tree bindings for Texas instruments Keystone timer
> +
> +This document provides bindings for the 64-bit timer in the KeyStone
> +architecture devices. The timer can be configured as a general-purpose 64-bit
> +timer, dual general-purpose 32-bit timers. When configured as dual 32-bit
> +timers, each half can operate in conjunction (chain mode) or independently
> +(unchained mode) of each other.
> +
> +It is global timer is a free running up-counter and can generate interrupt
> +when the counter reaches preset counter values.
> +
> +Documentation:
> +http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
> +
> +Required properties:
> +
> +- compatible : should be "ti,keystone-timer".
> +- reg : specifies base physical address and count of the registers.
> +- interrupts : interrupt generated by the timer.
> +- clocks : the clock feeding the timer clock.
> +
> +Example:
> +
> +timer@22f0000 {
> +       compatible = "ti,keystone-timer";
> +       reg = <0x022f0000 0x80>;
> +       interrupts = <GIC_SPI 110 IRQ_TYPE_EDGE_RISING>;
> +       clocks = <&clktimer15>;
> +};
> --
> 1.8.3.2
>