powerpc/85xx: workaround for chips with MSI hardware errata
authorHongtao Jia <hongtao.jia@freescale.com>
Thu, 26 Feb 2015 07:23:08 +0000 (15:23 +0800)
committerScott Wood <scottwood@freescale.com>
Tue, 24 Mar 2015 00:51:18 +0000 (19:51 -0500)
commitff015659b631621fc9d60403a5dfbdf72c1cd058
tree493c005e167a3a531c8e3363a423139c93ba58be
parent807d38b73b63bbbaa8e1baacf76f7874992f91e8
powerpc/85xx: workaround for chips with MSI hardware errata

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@gmail.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jia Hongtao <hongtao.jia@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
arch/powerpc/sysdev/fsl_msi.c
arch/powerpc/sysdev/fsl_msi.h