Rommel Custodio <sessyargc+uboot <at> gmail.com> writes: > > Dear Frank, > > >Frank Lombardo <fastfrank <at> gmail.com> writes: > > > So, that leaves me with the following questions: > > 1) Is the lack of flash memory causing THIS problem? > > 2) Am I missing some config items? > > 3) Does anybody have any advice on how I can debug this? > > I'm on an ML507 and I use the default configuration for u-boot. So try the > defaults (SYS_TEXT_BASE and RESET_VECTOR_ADDRESS) first.
Sorry, the defaults won't work in your case. I didn't notice that you only have 64Mb earlier. > > I used the instructions here when I used XMD: > <http://wiki.xilinx.com/powerpc-linux> > Just change the kernel ELF file for the u-boot ELF file. > > There are two targets for all the u-boot supported Xilinx boards in the > boards.cfg. The one for Flash has "_flash" so it's very easy to differentiate. After successfully downloading the u-boot ELF to RAM, dump the first few words at the load address (SYS_TEXT_BASE). It should be a jump to _start. You could also disassemble your u-boot. I built xilinx-ppc405-generic as a test and the first instruction is not a jump to _start. In ppc440 RAM boot (ie for use in XMD) the first instruction is a jump to _start_440 as this emulates going through the reset vector. IMHO, at the moment, it seems 405 is broken for RAM boot. I hope my understanding is correct. Would like to hear from the PowerPC guys in the list. All the best, Rommel _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot