[U-Boot] [PATCH V3+] I2C: mxc_i2c rework

[Stefano Babic]

On 07/29/2011 11:35 AM, Marek Vasut wrote:
>>
>> why you change i2c clock from IPG_PERCLK to IPG_CLK?
> 
> On MX51, PERCLK are those fast (680MHz) clock, that's not source of clock for 
> I2C. The IPG_CLK (they are 68.5MHz iirc) are source for the I2C. Also, I 
> discussed this with Stefano and we agreed this is likely a bug.

Well, this code must be suitable for all i.MX processor. If we have a
different source for i.MX51 and i.MX53, we can hide this adding an entry
to mxc_get_clock(), such as mxc_get_clock(MXC_I2C_CLK). the right clock
is then chosen in the specific mxc_get_clock function.

Best regards,
Stefano Babic

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