Hello, Thanks a bunch for your guidance. It helped a lot. I was able to download my Linux image to memory and in flash memory after through cp. But in both the cases when I tried to boot my linux, the setup got restarted after giving the message > bootm 100000 ## Booting image at 00100000 ... Image Name: 2.4.5-pre1 initrd for PM826 Created: 2003-09-04 13:43:13 UTC Image Type: PowerPC Linux Kernel Image (gz Data Size: 516901 Bytes = 504 kB = 0 MB Load Address: 00000000 Entry Point: 0000000c Verifying Checksum ... OK Uncompressing Kernel Image ...
Could any one please help me what could be the possible problem as I am totally new to this area. Or If I can get some pointer on where to look for this trouble It would be a great help. Thanks & Regards, Bhavin Shah Embedded Engineer eInfochips Ltd., bhavinp at einfochips.com Wolfgang Denk wrote: >Dear Bhavin, > >in message <3F56C5D3.9080202 at einfochips.com> you wrote: > > >> I am using a PM826 card with our own developed carrier extension >>board. I have build the ppcboot image. I am booting the image from flash >> >> > >Please upgrade. PPCBoot is pretty old, and a lot of modifications >have been added lately. Please use a recent version of U-Boot instead >(0.4.7). > > > >>and through serial communication SCC and I have configured the correct >>serial channel number from our card's schematics. Now, the ppcboot works >>but, when I try to write something in flash through ppcboot (either >>'loadb' command or 'nm' command) the flash contents are not getting >> >> > >Neither the "loadb" nor "nm" commands can operate directly on flash >memory. please download to RAM (or modify the RAM contents) and use >the "cp" command to write to flash. > > > >>changed. All other functionality of ppcboot works like erase, read, etc. >>but all the functionality related to 'write to flash' is not working. >> >> > >I think all these things are working fine, you are just using them >wrong. > > > >>Can any one please suggest me what could be the possible reason?? >> >> > >Read the documentation; see >http://www.denx.de/twiki/bin/view/DULG/Manual > > > >>Also, I have one separate program which, I downloaded from somewhere >>which does some read/write operation to the PM826 card's flash. Through >>that program the writing is working perfect. >> >> > >It's working perfectly in PPCBoot and U-Boot, too. Just remember that >the command to write to flash is "cp" (and it's variants >"cp.{l|w|b}"). > > > >>Has it something to do with ppcboot configuration or the addressing mode? >> >> > >No, it is a user error. > >Best regards, > >Wolfgang Denk > >-- >Software Engineering: Embedded and Realtime Systems, Embedded Linux >Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de >Software suppliers are trying to make their software packages more >``user-friendly''. . . . Their best approach, so far, has been to >take all the old brochures, and stamp the words, ``user-friendly'' on >the cover. - Bill Gates > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
