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 Post subject: dtb file
PostPosted: Fri Oct 08, 2010 2:12 am 
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Joined: Sun Nov 18, 2007 5:11 am
Posts: 14
Do I need to create a new dtb every time I compile a new kernel?

I've compiled a number of kernels for my KuroBox HG. Each time, I've used dtc to convert the dts file in arch/powerpc/boot/dts/ to a dtb file and placed it in /boot/ However, this time I'm running into some trouble.

kernel 2.6.34 doesn't have any code in arch/powerpc/boot/dtc-src/
neither the gentoo-sources kernel that I prefer to use or the vanilla kernel downloaded from kernel.org have anything in this directory.

When I run dtc using a pre-compiled dtc (a gentoo package), I get the following error:
Code:
# dtc -I dts -O dtb -V 16 -o /tmp/kuroboxHG.dtb kuroboxHG.dts
DTC: dts->dtb  on file "kuroboxHG.dts"
kuroboxHG.dts:21 syntax error
FATAL ERROR: Couldn't read input tree


Do I need to create a new dtb every time I compile a new kernel or can I just stick with the one I already have?


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 Post subject: Re: dtb file
PostPosted: Fri Oct 08, 2010 5:41 am 
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Site Admin
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Joined: Sun Jul 17, 2005 4:34 pm
Posts: 5332
I think the format changed some time ago, but I'm not exactly sure about that. I usually reuse my existing .dtb files, produced with:

dtc -b ppc -f -I dts -O dtb -o /boot/kuroboxHG.dtb -V 16 /usr/src/linux/arch/powerpc/boot/dts/kuroboxHG.dts
dtc -b ppc -f -I dts -O dtb -o /boot/kuroboxHD.dtb -V 16 /usr/src/linux/arch/powerpc/boot/dts/kuroboxHD.dts


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 Post subject: Re: dtb file
PostPosted: Mon Dec 19, 2011 10:17 am 
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Total Newbie

Joined: Wed Nov 30, 2011 8:33 am
Posts: 2
The DTB submit is a system shrub submit. It identifies the recollection space map for the panel. From what I can tell, its particular to PowerPC.


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