Subject: [PATCH v2 02/14] ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme.

From: [email-masked] (Jon Hunter)
Date: Mon, 9 Jul 2012 18:52:21 -0500

On 07/09/2012 11:47 AM, Kevin Hilman wrote:
> Santosh Shilimkar <[email-masked]> writes:
> 
>> From: R Sricharan <[email-masked]>
>>
>> OMAP socs has a legacy and a highlander version of the
>> 32k sync counter IP. The register offsets vary between the
>> highlander and the legacy scheme. So use the 'SCHEME'
>> bits(30-31) of the revision register to distinguish between
>> the two versions and choose the CR register offset accordingly.
> 
> Do these scheme bits exist on *all* OMAPs?  including OMAP1?

By the way, I believe that for early devices only the lower 8-bits were
used and the upper bits return 0. For OMAP5912 I read 0x00000010 from
the REV register and so this change should be safe for OMAP1 devices.

Cheers
Jon