Hello @all, now I have a working BSP-Layer, but for now its only a plain copy (created with yocto-bsp) of arm-versatile-926ejs. And the only thing it does so far, is creating a .config-Kernel configuration file (which is fine by now). To adapt this to my needs it seems I have to edit the stamp9g20.cfg and the stamp9g20-non_hardware.cfg files. Am I right?
Since I can create a valid kernel configuration by simply: $ make ARCH=arm stamp9g20_defconfig I'm using this file as a reverence, but now I'm having a hard time figuring out what part of this config file I have to put inside my BSP cfg files and what to use from the kernel meta/cfg/kernel-cache/features stuff via a include statement ... I try to make an example: In my reference config file I have this CONFIG_HIGH_RES_TIMERS=y This can be found here "meta/cfg/kernel-cache/features/hrt/hrt.cfg" as a kernel feature. So I have to add the statement "include features/hrt/hrt.scc" into "stamp9g20.scc", right? But wait a minute ... $ grep -r hrt.scc linux-yocto-3.2-work/meta/cfg/kernel-cache/ linux-yocto-3.2-work/meta/cfg/kernel-cache/ktypes/standard/standard-nocfg.scc:include features/hrt/hrt.scc So its already included from "ktypes/standard" ... ;-( To get a better overview (and because I'm a famous magician) I made up a little spell: # Look for all kernel config parameters if they are defined somewhere inside # linux-yocto-3.2/meta/cfg/kernel-cache/(arch|cfg|features|ktypes/base|ktypes/standard) # if found print the matching file, if not print NOT FOUND. for i in $(grep -v '^#' ~/Development/linux-yocto-3.2-work/.config |grep -v '^$' | awk -F"=" '{print $1}'); do grep -H $i $(find arch/ cfg/ features/ ktypes/base ktypes/standard/ -name *.cfg) || echo NOT FOUND: $i; done | sort | uniq > ~/Development/features_all.txt # Split the features_all.txt file into found and not found grep -v '^NOT FOUND' features_all.txt > features_found.txt grep '^NOT FOUND' features_all.txt > features_not_found.txt # finally get a list of all scc files I need to include. cat features_found.txt |awk -F':' '{print $1}' |sed \ "s/.*\/\(.*\)\.cfg$/\1.scc/" |uniq > modules_to_include.txt (I put all the mentioned files here: https://gist.github.com/3017292) I guess the config variables inside features_not_found.txt are the one I need to include into the stamp9g20.cfg, stamp9g20-non_hardware.cfg files? (Ok except the ones that get enabled by some kernel dependency stuff ... but how to figure out this?) Is there a better way to go? Maybe one where you don't have to have magical powers? ;-) _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto