Re: [PATCH 0/4] Make Armada 375 use the reference clock when possible

Andrew Lunn
2014-10-22T13:56:11Z

On Wed, Oct 22, 2014 at 10:34:40AM -0300, Ezequiel Garcia wrote:
> This series adds support for the 25 MHz reference clock available on
> Armada 375 SoC to use on the timer and watchdog drivers. It is
> similar to the one present in Armada XP SoC.
>
> Given we initially had access to only a very early SoC revision (A375 Z0)
> and due to a hardware issue, the timer and watchdog support was originally
> submitted to use the core clock.

Hi Ezequiel

What happens with Z0 when used with these patches? Do they continue to
work? Do these hardware issues cause a problem?

> Now that the A0 SoC revision is out, we can fix this and use the reference
> clock. The reason for this change is that the core clock is subject to the
> SSCG, so boards where SSCG is enabled exhibit a very large timer drift.

It would of been nice to say what SSCG is. I had to go look it up.
However, since this is just in the cover note and not in the patches
itself, it is not important.

Andrew