On Wed, Mar 9, 2011 at 10:30 AM, Andy Green <a...@warmcat.com> wrote: > On 03/09/2011 08:17 AM, Somebody in the thread at some point said: > > Hi - > >>> 5) The igep, overo, and panda configs all use the same omap3 >>> config according to the hwpacks. I'm not sure I believe that, >>> but went along with it to get this out the door. >> >> They do use the same config - or 'flavour' as they are referred to in >> the Ubuntu kernel config system. > > Panda is OMAP4 and the other two are OMAP3 AIUI, I am aware they are all > under "OMAP2+" in the kernel, but there are really significant differences > from configuration point of view like SMP or not. > > How is that handled with the same config?
One can build a single kernel binary that runs on OMAP2/3/4 platforms from the mainline kernel. That has been the main requirement from the maintainer to add new board support. Everything under mach-omap2 and plat-omap is written for runtime detection of features. However, last I looked, there were problems with the ARM locking primitives being patched at runtime. So it prevented SMP-on-UP kernels, that is, SMP had to be turned off. But that will eventually get fixed so you could have a SMP kernel running on a UP system. This is how x86 does it today. /Amit _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
