[U-Boot] [PATCH] net: See to it that sent data is aligned to the ethernet controllers wishes

[Liu Dave-R63238]

> Well, that's what the other patch I sent does (the link above), but
> there were wishes then to handle this above the driver layer, hence
> this patch :-)
> 
> I'm fine with either way, but if there are other drivers with 
> alignment requirements, I'd prefer this variant.

I believe some Freescale's CPM/QE controllers need care the
alignement requirement.

If you don't care the performance, you can malloc memory to
get the aligned buffer pool in the initiaize phase,
then use the buffer pool to resolve your alignment issue, of course
It needs a copy, but it avoids to malloc/free buffer in run-time.

Thanks, Dave