[U-Boot-Users] (Newbie) MPS8272ADS image layout

[VanBaren, Gerald (AGRE)]

> -----Original Message-----
> From: wd at denx.de [mailto:wd at denx.de]
> Sent: Thursday, May 20, 2004 3:51 PM
> To: VanBaren, Gerald (AGRE)
> Cc: u-boot-users at lists.sourceforge.net
> Subject: Re: [U-Boot-Users] (Newbie) MPS8272ADS image layout
>
>
> In message
> <065ACD8E84315E4394C835E398C8D5EB09224B at cossmgmbx02.email.corp
> .tld> you wrote:
> >
> >  that there is an option to "low boot", selected via the
> HRCW, in which
> >  case CS0 is mapped to 0x00000000..0x000FFFFF and the reset
> vector is at
> >  0x00000100 -- u-boot supports this option but it is not
> used as often as
> >  high boot.
>
> I disagree. At least for the systems I see there  are  morre  systems
> using low-boot.
>
>
> Best regards,
>
> Wolfgang Denk
>
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
> : ... and it's got weird formatting - Notepad, Write, Works  3  can't
> : decipher it, and it's too big to go in DOS Edit. Help!
> Install an operating system. :-)                  -- Tom Christiansen


OK, I'll defer to Wolfgang's considerable experience.  With the "low boot" option the HRCW gets programmed properly (inherently) when programming u-boot (i.e. you don't have to do the double-program mess I described in my previous email).

Note to Ward Travis [w.travis at earthlink.net]: You select the "low boot" option in the HRCR Bit 16 "BMS" (Boot Memory Space).  You then want to program your u-boot image at 0xFF800000 (the start of your flash), change any jumpers that need changing (e.g. RSTCONF), and reset the board.  U-boot should just run.

gvb



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