[U-Boot-Users] [PATCH] 83xx: Put the version (and magic) after the HRCW.
joakim.tjernlund at transmode.se
Thu Dec 7 18:05:55 CET 2006
> -----Original Message-----
> From: u-boot-users-bounces at lists.sourceforge.net
> [mailto:u-boot-users-bounces at lists.sourceforge.net] On Behalf
> Of Jerry Van Baren
> Sent: 07 December 2006 14:23
> To: Joakim Tjernlund
> Cc: u-boot-users at lists.sourceforge.net
> Subject: Re: [U-Boot-Users] [PATCH] 83xx: Put the version
> (and magic) after the HRCW.
> Joakim Tjernlund wrote:
> >> Sam Song wrote:
> >>> Jerry Van Baren <gerald.vanbaren at comcast.net> wrote:
> >>>> Put the version (and magic) after the HRCW. This
> >>>> puts it in a fixed location in flash, not at the
> >>> start
> >>>> of flash but as close as we can get.
> >>> Nice effort. Space saving and better version check.
> >>> I guess the same change could apply for MPC8260/47/8.
> >>> Thanks,
> >>> Sam
> >> Yes. Most boards have the version in the first bytes of
> >> flash, but this
> >> was not possible on the 82xx because of the HRCW, so it was put in
> >> .data. This set up was copied for the 83xx (which also has a
> >> HRCW). My
> >> change moves it back to .text just after the HRCW. I put also the
> >> u-boot magic number back in in honor of Wolfgang. ;-)
> >> If you change the file names in the patch, it probably would
> >> apply. :-)
> >> I intend to do this (perhaps literally), but ran out of
> >> ambition tonight.
> > Looks almost the same as the patch I sent the other day. I am good
> > with either version.
> > Jocke
> Hi Jocke,
> Yes, your patch, and my objection to its removal of the HRCW, was the
> genesis of this one. The two differences are (a) I kept the HRCW and
> (b) I put the "u-boot magic number" in (no known reason to do
> this, but
> it Just Seemed Right[tm]). The result of (b) is that the
> version starts
> at flash offset 0x44 rather than 0x40. Should be NBD.
(a) yeah, I don't really need this either, I just added that to give
(b) uh, I want the "u-boot magic number". If I didn't have it in my
patch then it
was a typo.
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