[ELDK] Missing declaration in linux-2.6.24/arch/powerpc/boot/ops.h

[James Black]

I guess I'm not making myself clear. The ops.h in the kernel that
comes with eldk4.2-rc1 is the wrong file for linux-2.6.24.2. The
kernel.org 2.6.24.2 has the correct file. The missing part in the
eldk4.2-rc1 is the
__ilog2_u32 declaration at the end of the file. The build does
complete and there is a uImage. But, I have been having problems
getting the eldk4.2-rc1 2.6.24 kernel to boot with a device tree
(muram in device tree for mpc8250 in arch/powerpc) thread on
Linuxppc-embedded mailing list. The 2.6.19.2 kernel boots fine on our
hardware but the 2.6.24 does not. The pq2fads was just a starting
point for my efforts and we ran accross this problem I am telling you
about on the way. There are others :-) I'm getting through.

Thought I'd let you know about the ops.h file problem in the eldk4.2-rc1.


Jim Black


> On Tue, Mar 25, 2008 at 8:20 AM, Wolfgang Denk <wd at denx.de> wrote:
> In message <b77025b40803250535g20b690dcu4df033b3fa5fd006 at mail.gmail.com> you wrote:
>  > I was building pq2fads.
>  > I copied the linux kernel to my home directory from the eldk location.
>  > Then issued the following commands from the new directory
>  > (linux-2.6.24). I assume it is 2.6.24.2 since that is the version that
>  > shows up in the .config.
>  >
>  > source /opt/eldk/4.2/eldk_init ppx_6xx
>  > ARCH=powerpc                                   <--- I'm building the
>
>  Did you "export ARCH" ?
>
>
>  > kernel rather than u-boot.
>  > make pq2fads_defconfig
>  > make
>
>
> > > > arch/powerpc/boot/cuboot-pq2.c: In function 'fixup_pci':
>  > > > arch/powerpc/boot/cuboot-pq2.c:204: warning: implicit declaration of
>  > > > function '__ilog2_u32'
>  > > >
>  > > > The arch/powerpc/boot/ops.h file should have __ilog2_u32 declared at
>  > > > the bottom of the file.
>
>  OK - but thi does not porevent the build from completing, right? At
>  least I get a uImage file that looks reasonable to me (although I
>  cannot test it as we don't have a  pq2fads board).
>
>
>  > > Hm... all of the supported board configs build fine?
>
>  We don't provide explicit support for the pq2fads -  that's  part  of
>  the  standard kernel.org tree. You should post pq2fads related issues
>  on the PPC mailing list.
>
>
>  Best regards,
>
>  Wolfgang Denk
>
>  --
>  DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
>  HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>  Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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>           -- Edsger W. Dijkstra, SIGPLAN Notices, Volume 17, Number 5
>