[U-Boot] [RFC] Make i2c probe opt-outable?

[Tom Rini]

On Fri, May 18, 2012 at 11:52:06PM +0200, Wolfgang Denk wrote:
> Dear Tom Rini,
> 
> In message <4FB69847.2090703 at ti.com> you wrote:
> >
> > Right.  I'm not suggesting removing i2c probe, I'm just suggesting 
> > making it opt-out'able.  For example, on the beaglebone I can make i2c 
> > probe work as expected.  It's just requring that we toggle the I2C_CON 
> > enable bit for some reason in probe, but not when we are actually trying 
> > to write to a bad address.  I'd like to just #undef CONFIG_CMD_I2C_PROBE 
> > for the board and be done with it.  Otherwise it lists (nearly) every 
> > address which is useless.
> 
> Can you use bit-banged I2C on these boards?

In this particular case it worked out to being that a previous change to
the probe code violated the TRM, but didn't cause (obvious?) harm on
older versions of the IP block but on newer ones (am33xx, omap4+) it
does.  I'll drop the idea of making i2c probe command opt-out.

-- 
Tom