Honored Contributor
Honored Contributor> Does anyone know how to create a jffs2 image from within the Windows
> NIOS II IDE? You'll need to port mkfs.jffs2 to cygwin -- I have a version laying around somewhere ... if I can find it, I'll post it somewhere appropriate for download. > If I was on a Linux box, I would download the latest mtd snapshot, build the > tools, install them, then use the appropriate utilities to create the image based > on a target directory. I'm not sure how to accomplish all of this under the NIOS II IDE. I didn't build the jffs2 filesystem via the IDE -- I just used the shell and mkfs.jffs2. It should be relatively straight forward to setup a simple make file that invokes mkfs.jffs2 via the IDE though. A few things to keep in mind: the IDE linux filesystem utilities do some handy conversions for you ... like removing .exe extensions, and setting up device inode [major,minor] numbers (based on the device filename -- you can look at your target /dev to see what I mean). When using mkfs.jffs2, I just used the -D, --devtable option. > Also, can all of this be performed on the host system, or should some or all of it be > performed on the target system? Yes, all can be performed on the host under cygwin -- once you have mkfs.jffs2. But you'll need the native gcc -- which isn't (wasn't) part of the Nios-II tools. When I installed the Microtronix linux, native gcc was included (presumably to support menu config, etc.) -- which BTW is really great to have :-) -- kudos to Microtronix! A final note: if you're using the "standard" AMD AM29LV065D flash, you may experience some problems with the cfi chip driver -- I'm not sure if this has been resolved in the 2.6 kernel sources yet. Regards, --Scott
