On Tue, Nov 3, 2009 at 3:07 PM, David Hawkins dwh@ovro.caltech.edu wrote:
David Hawkins wrote:
<snip>
In that case the U-Boot reset vector starts in the same sector as the RCWs, with the RCWs at 0, and the reset vectors at 100h. Thats why you also see the RCWs in the high-boot image (well, you used to, not sure if you do now).
Cheers, Dave
Dave (and the list)-
Thanks for the insight. I believe I have everything I asked about figured out, but I am still not having any luck getting the new u-boot to load. I see the processor go and start fetching the u-boot image off the flash and it comes out of reset, then soon after a hard reset is issued.
I can not wrap my head around why the new u-boot (2009-8) will not boot versus the old u-boot (1.1.3). I didn't really change anything to get the stock Freescale u-boot to boot on this board except change the flash size information.
One interesting thing running the new u-boot code is I don't ever see it try to read the BCSR (on CS1).
Speaking of, why did the BCSR get mapped to 0xE2400000 from 0xF8000000?
I know I'm being vague, but I've trying so many things and had no luck, so I just wanted any ideas from the crowd.
Oh, and your paper you linked to earlier is a wealth of information! It takes reading a lot of Freescale documentation over and over again to grasp some concepts you summed up nicely in a few pages.
Thanks in advance!
Mit