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

Jia Hongtao-B38951 B38951 at freescale.com
Mon Jul 1 19:36:16 EST 2013


> -----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



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