[U-Boot] [PATCH] spi: mxc_spi: Fix ECSPI reset handling

[Stefano Babic <sbabic@denx.de>]

On 03/04/2013 18:54, Dirk Behme wrote:
> Am 03.04.2013 11:12, schrieb Stefano Babic:
>> On 21/03/2013 09:03, Dirk Behme wrote:
>>> Reviewing the ECSPI reset handling shows two issues:
>>>
>>
>> Hi Dirk,
>>
>>
>> agree completely, only a very minor question..
>>
>>
>>> +
>>> +    reg_ctrl = reg_read(&regs->ctrl);
>>
>> As you says, it makes no sense to read back the value of the register,
>> also because reg_ctrl is overwritten some lines later ;-)
> 
> Hmm, sorry if I overlooked something, but we have to initialize the
> variable 'reg_ctrl' with the recent register content because it is first
> used and _then_ overwritten in the next step:
> 
> reg_ctrl = (reg_ctrl & ~MXC_CSPICTRL_SELCHAN(3)) |
> MXC_CSPICTRL_SELCHAN(cs);

What I meant is that we know already the value of the register. Your
patch set it to MXC_CSPICTRL_EN, and this could be put in or later when
you set again the register ;-)

Nevermind, your patch is ok and fixes a real problem. What I commented
are more or less style-related.

I merge it and push for the release.

Best regards,
Stefano

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