[U-Boot-Users] Re: Hang after relocating u-boot code...
wd at denx.de
Fri Jan 9 07:59:07 CET 2004
In message <20040109021612.81164.qmail at web15208.mail.bjs.yahoo.com> you wrote:
> When using the UPM Burst Read settings whick worked on LITE_DW,I got the
> following best result by now.I wrote some UPMA Burst Read Words but without no
> better performance.
As I have pointed out a hundred times or more before: the culprit is
usially NOT the UPM setting, but the initialization sequence of your
> 2.When setting DER as 0x51c7000f,I get the "good" results by over 70 continuing
> "go" commands:
This probably just hushes up the symptoms. Try runnign without the
BDI attached. Does it work? No? You see... the problem was not fixed
> It seems that one more step could succeed.However,the truth hurts.I trapped in
> settings of UPM RAM Words and want to figure it out.
IT HAS NOTHING TO DO WITH THE UPM SETUP.
THE PROBLEM IS THE SDRAM INIT SEQUENCE.
[sorry for shouting]
See us @ Embedded World, Nuremberg, Feb 17 - 19, Hall 12.0 Booth 440
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
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