-----Original Message----- From: wd@denx.de [mailto:wd@denx.de] Sent: Thursday, May 20, 2004 3:51 PM To: VanBaren, Gerald (AGRE) Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] (Newbie) MPS8272ADS image layout
In message <065ACD8E84315E4394C835E398C8D5EB09224B@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@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@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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