On Dec 22, 2014 10:36 PM, "Rangineni Balu" <[email protected]> wrote: > > Hello everybody, > > > We designed one custom board with TI's OMAP processor similar to beagleboard. > we registered our board and got Machine ID, even i gave wrong machine ID (i.e., i tried different .dts accidentally IDs are different in each case), my kernel is booting. > > In .dts, i made this entry > > model = "CDAC OMAP3 WINGZ board"; > compatible = "CDAC,omap3-wingz", "ti,omap3"; > > I didn't do any changes to the kernel with compatible entry for "CDAC, omap3-wingz", but still kernel is booting without any problem. > > What my question is > 1. Is it really required to pass Machine ID as a parameter to the linux kernel while booting ? > 2. How the kernel is booting even i gave "compatible" field which is not at all available as an entry in linux kernel? >
That string is used to help differentiate your board in the kernel. Example of some pdata qwerks that use that value. https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm/mach-omap2/pdata-quirks.c?id=refs/tags/v3.19-rc1#n414 > Is only device tree is sufficient to boot the kernel on ARM boards? > > Thanks & Regards, > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
