[PATCH v2 1/2] ARM: arch timer: implement read_current_timer and get_cycles

[Stephen Boyd]

On 06/29/12 10:33, Will Deacon wrote:
> This patch implements read_current_timer using the architected timers
> when they are selected via CONFIG_ARM_ARCH_TIMER. If they are detected
> not to be usable at runtime, we return -ENXIO to the caller.
>
> Furthermore, if read_current_timer is exported then we can implement
> get_cycles in terms of it for use as both an entropy source and for
> implementing __udelay and friends.
>
> Signed-off-by: Will Deacon <will.deacon at arm.com>

Reviewed-by: Stephen Boyd <sboyd at codeaurora.org>

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