[U-Boot] [PATCH 3/3] smc911x: do net reset the chip if no EEPROM is connected

[Mike Frysinger]

On Tuesday 21 April 2009 07:13:10 Daniel Mack wrote:
> On Wed, Apr 08, 2009 at 11:57:37PM -0400, Mike Frysinger wrote:
> > > Not if the MAC is stored in the volatile smc911x registers. Issuing a
> > > soft reset flushes these values - if U-Boot does that, the OS has no
> > > change getting them.
> >
> > then either your u-boot or your OS is misconfigured and you need to fix
> > that. as clearly stated in docs/README.enetaddr, the environment is the
> > place where mac addresses live when there is no dedicated storage (like
> > an eeprom).
> >
> > ignoring that, the mac address doesnt magically get programmed.  if no
> > network operation was initiated, then the part wouldnt have been
> > programmed anyways, so you're still left with an OS that cant get itself
> > functional.
>
> Ok, true. Thanks for pointing this out.

usually what i suggest to people are things like:
 - pass $(ethaddr) via kernel command line and parse /proc/cmdline
 - use the u-boot tools to read the u-boot env directly
 - set the hw address with `ifconfig` or similar tool
-mike
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