Zachary Landau wrote on 17.05.2005 15:31 MET:
I've got a little problem porting U-Boot to a Coldfire MCF5272 based platform. Everything's fine (now) up to the point where it relocates itself to RAM. See the boot message:
If you haven't already, you should search the mailing list archives for information about the 5282 patches floating around. Your best bet is probably to modify those for the 5272.
Ok back to that problem - after some time with other stuff. I then found "EMAC 5282 Second U-Boot code release" which was just posted the day before: http://article.gmane.org/gmane.comp.boot-loaders.u-boot/17178
I've tried to disable the cache or activate it the "new way" like in the u-boot code from the address above but no luck. I've also ported the serial initialization code from that code to a generice form which applies for the mcf5272 as well as the m5282. Might post a patch for that some time.
Using gdb with the BDM interface I find that the actual copying of the code to RAM succeeds but while clearing the BSS an exception happens as the system goes into the _fault endless loop.
Someone with a Motorola Coldfire 5272 cpu experienced the same and could give me a hint.