[U-Boot] [RFC] Program net device MAC addresses after initializing

[Wolfgang Denk]

Dear Ben Warren,

In message <1270450929-17004-1-git-send-email-biggerbadderben at gmail.com> you wrote:
> Add a new function to the eth_device struct for programming a network
> controller's hardware address.
> 
> After all network devices have been initialized and the proper MAC address for
> each has been determined, make a device driver call to program the address
> into the device.  Only device instances with valid unicast addresses will be
> programmed.
> 
> This is a significant departure from existing U-boot behavior, but costs very
> little in startup time and addresses a very common complaint among developers.

The thing is that this _is_ a violation of the design rules, and we
should not make assumptions that such an initialization is harmless
for all systems.