[U-Boot-Users] [patch] Fix NC650 nand support

[Zang Roy-r61911 <tie-fei.zang@freescale.com>]

On Mon, 2007-04-23 at 21:00, Detlev Zundel wrote:
> Hi Roy,
[snip]
> >> > while doing this noticed that the whole fixup only works because
> we
> >> > have a maximum of one fixup entry (./drivers/tsi108_pci.c, I
> cannot
> >> > find any user of addr_probe anywhere).  
> > Tsi108/9 pci config read will introduce a exception. I do not see
> other
> > exception after code relocation.
> >
> >> Otherwise the sorting of the
> >> > table is missing and thus the searching with a bisecting
> algorithm
> >> > will not work as is.
> > Why?
> 
> As I said, the search algorithm only works with a sorted table - just
> what "sort_main_extable" does in Linux.  To be honest I did not look
> too hard but I couldn't find anything similar in U-Boot so the table
> will be unsorted and thus very likely fail if more entries are added.
> 

Unsorted table will induce error for more entries.
Until now, I can only see tsi108_pci.c adds exception item for the
exception table. Other boards have empty addr_probe. They are commented
out.

> So either sorting the table at some point or instead doing a linear
> search would fix the problems.

I prefer the second. I will do some test on my board and give the patch.
Thanks.
Roy