[V2,2/2] powerpc/85xx: workaround for chips with MSI hardware errata

Jia Hongtao-B38951 B38951 at freescale.com
Thu Sep 5 14:00:08 EST 2013


> -----Original Message-----
> From: Jia Hongtao-B38951
> Sent: Monday, July 01, 2013 5:36 PM
> To: Wood Scott-B07421
> Cc: linuxppc-dev at lists.ozlabs.org; galak at kernel.crashing.org
> Subject: RE: [V2,2/2] powerpc/85xx: workaround for chips with MSI
> hardware errata
> 
> > -----Original Message-----
> > From: Wood Scott-B07421
> > Sent: Friday, June 28, 2013 10:29 AM
> > To: Jia Hongtao-B38951
> > Cc: linuxppc-dev at lists.ozlabs.org; galak at kernel.crashing.org; Wood
> > Scott-
> > B07421
> > Subject: Re: [V2,2/2] powerpc/85xx: workaround for chips with MSI
> > hardware errata
> >
> > On Wed, Apr 03, 2013 at 10:03:18AM +0800, Hongtao Jia wrote:
> > > The MPIC version 2.0 has a MSI errata (errata PIC1 of mpc8544), It
> > > causes that neither MSI nor MSI-X can work fine. This is a
> > > workaround to allow MSI-X to function properly.
> > >
> > > Signed-off-by: Liu Shuo <soniccat.liu at gmail.com>
> > > Signed-off-by: Li Yang <leoli at freescale.com>
> > > Signed-off-by: Jia Hongtao <hongtao.jia at freescale.com>
> >
> > Building on 83xx:
> >
> >   arch/powerpc/sysdev/built-in.o: In function `fsl_of_msi_probe':
> >   fsl_msi.c:(.text+0x1464): undefined reference to
> > `fsl_mpic_primary_get_version'
> >   make[1]: *** [vmlinux] Error 1
> >   make: *** [sub-make] Error 2
> >
> > fsl_msi.c supports IPIC as well.
> >
> > -Scott
> 
> Hi Scott,
> I updated the patch to fix this compile error just now.
> please refer to:
> http://patchwork.ozlabs.org/patch/256018/
> 
> Thanks.
> -Hongtao

Hi Scott,

The 83xx compile issue has already been fixed.
Please have a review on this patch.

Thanks.
-Hongtao



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