[U-Boot] Odd value for I2C_TIMEOUT in fsl_i2c.c

Wolfgang Denk
2009-09-04T18:30:24Z

Dear Timur Tabi,

In message <4AA132B3.3050004@freescale.com> you wrote:
> Peter Tyser wrote:
> > If this is the case, the timeout should be the maximum (or reasonable
> > maximum) time an I2C transaction could take.
>
> How long is that? Is one millisecond good enough?

Probably not. If you place a read request to a slow device it may
take tens of milliseconds, or even longer - I have no idea. IIRC we
had a box with a LCD display connected over I2C, which didn't ent
into production as originally designed because writing the content
took over 100 millisec.

Best regards,

Wolfgang Denk

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