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

From: Scott Wood <[email-masked]>
Date: Thu, 27 Jun 2013 21:28:33 -0500

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 <[email-masked]>
> Signed-off-by: Li Yang <[email-masked]>
> Signed-off-by: Jia Hongtao <[email-masked]>

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