[U-Boot-Users] [PATCH] 16-bit NAND support

Woodruff, Richard r-woodruff2 at ti.com
Wed Nov 3 00:41:55 CET 2004


Wolfgang,

I just eyed the patch and it didn't seem like there was much size
difference.  Compiled it might be in the order of some bytes, perhaps a
1k or 2k at worst, easy enough to tell.  At run time it will be reading
a page at a time and moving that to memory else where, so the run time
overhead of the couple structure changes probably won't change much
either. 

Is there some bit which worries you?  I didn't notice anything in a
quick look, but perhaps you did.

Regards,
Richard W.

> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net [mailto:u-boot-users-
> admin at lists.sourceforge.net] On Behalf Of Wolfgang Denk
> Sent: Tuesday, November 02, 2004 5:21 PM
> To: Zhang, Jian
> Cc: u-boot-users at lists.sourceforge.net; Johnson, Steve-OMAP
> Subject: Re: [U-Boot-Users] [PATCH] 16-bit NAND support
> 
> In message
<BA2832125C3C994384FCC051CDFC7369B8A351 at dlee2k05.ent.ti.com>
> you wrote:
> > Yes, it would change the code size as 16-bit nand code is added. But
the
> > path that an 8-bit chip follows remains the same. I don't expect it
> > breaks any existing boards. Can someone run a test on 8-bit chip
boards?
> 
> Even if you disable the 16 bit NAND code the code size will change as
> you added new fields to some structures and tables.
> 
> So please do not claim that it does not affect  existing  boards.  It
> does!
> 
> Best regards,
> 
> Wolfgang Denk
> 
> --
> See us @ Embedded/Electronica Munich, Nov 09 - 12, Hall A.6 Booth 513
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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> 	-- Kirk, "Errand of Mercy", stardate 3201.7
> 
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