[U-Boot] [PATCH 07/14] ARM: AM43xx: Select clk source for Timer2

[Vaibhav Bedia]

Hi Lokesh,

On Thu, Nov 7, 2013 at 8:43 AM, Lokesh Vutla <lokeshvutla at ti.com> wrote:
> Hi Vaibhav,
> On Wednesday 06 November 2013 06:10 PM, Vaibhav Bedia wrote:
>> On Mon, Nov 4, 2013 at 11:20 PM, Lokesh Vutla <lokeshvutla at ti.com> wrote:
>>> Selecting the Master osc clk as Timer2 clock source.
>>
>> I obviously missed the first round of patches for AM43xx here. Why is
>> timer2 being used here? Don't we use the synctimer and timer1 in the kernel?
> In u-boot there is already code present to handle timer2 in
> arch/arm/cpu/armv7/omap-common/timer.c(Registers offsets are different for timer1 and timer2) . Trying to reuse the same here.
> This is how it is done in am335x also.
> Correct me if I am wrong.

On AM335x that timer is used in U-Boot in the delay loop
and later gets used in the kernel as a system timer. On
AM437x it might be a good idea to use synctimer since it
has some stabilization period requirements and that's
going to affect the kernel boot eventually.

Regards,
Vaibhav