[U-Boot-Users] [PATCH] ARM: add support of CONFIG_LAST_STAGE_INIT for arm

Mike Frysinger vapier at gentoo.org
Tue Dec 11 18:05:47 CET 2007

On Tuesday 11 December 2007, Wolfgang Denk wrote:
> In message <20071211095906.77701bb0 at dhcp-252-066.norway.atmel.com> you 
> > It should probably initialize the PHY interface (i.e. the MDIO
> > interface) early, but I agree that it should delay initializing the
> > actual PHY until it is needed.
> Please keep in mind that U-Boot shall initialize hardware if and only
> if it is using it (and that it must deactivate it after use).

with many pieces of hardware, you can draw a line between initializing it and 
actually enabling/using it.

for example, shouldnt the initialization/programming of the MAC address always 
happen regardless of the network being used ?  not all MAC's have/support 
eeprom's which contain the MAC address, so the implicit address programming 
that happens in hardware cannot happen.
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