[U-Boot] [PATCH v3 1/4] arm, am33xx: add defines for gmii_sel_register bits

[Tom Rini <trini@ti.com>]

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On 08/14/2013 02:29 AM, Mugunthan V N wrote:
> On Monday 12 August 2013 11:06 PM, Mugunthan V N wrote:
>> On Monday 12 August 2013 07:52 PM, Tom Rini wrote:
>>>>>> +#define GMII2_SEL_MII		0x0
>>>>>>>>> +#define GMII2_SEL_RMII		0x4 +#define
>>>>>>>>> GMII2_SEL_RGMII		0x8 +#define GMII2_SEL_NOTUSED
>>>>>>>>> 0xc
>>>>>>> NOTUSED not needed as it is not supposed to be used.
>>>>> same here ...
>>> I think "Not Used" in the TRM here means "this port is not
>>> used" rather than "this combination of bits is not to be used",
>>> so the changes are correct.
>> But having this define is not useful as far as I can think of as
>> there is not abstraction API for this to check what user is
>> passing. But I leave it to Tom's decision to have this change or
>> not.
>> 
>> Other than this the patch looks good to me. Acked-by: Mugunthan V
>> N <mugunthanvnm@ti.com>
>> 
>> 
> I had a discussion with the hardware team internally and the
> comment is *When these bits are set to 11b the RGMII is selected
> with internal delay mode which was not timing closed.  Therefore
> this register setting is not supported so it should not be used.
> The respective pin multiplexing should be used to deselect any
> unused CPGMAC pins.*c The same will be updated in the TRM soon. So
> can you remove NOTUSED define and resubmit the patch again and can
> include my Acked-by in your next version patch.

Along with fixing the boards that set these bits to not set them
please, thanks!

- -- 
Tom
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