commit ff015659b631621fc9d60403a5dfbdf72c1cd058
author Hongtao Jia <hongtao.jia@freescale.com> Thu Feb 26 15:23:08 2015 +0800
committer Scott Wood <scottwood@freescale.com> Mon Mar 23 19:51:18 2015 -0500
tree 493c005e167a3a531c8e3363a423139c93ba58be
parent 807d38b73b63bbbaa8e1baacf76f7874992f91e8

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.h

diff --git a/arch/powerpc/sysdev/fsl_msi.h b/arch/powerpc/sysdev/fsl_msi.h
index 420cfcb..a67359d 100644
--- a/arch/powerpc/sysdev/fsl_msi.h
+++ b/arch/powerpc/sysdev/fsl_msi.h
@@ -27,6 +27,8 @@
 #define FSL_PIC_IP_IPIC   0x00000002
 #define FSL_PIC_IP_VMPIC  0x00000003
 
+#define MSI_HW_ERRATA_ENDIAN 0x00000010
+
 struct fsl_msi_cascade_data;
 
 struct fsl_msi {