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| author | Hongtao Jia <hongtao.jia@freescale.com> | 2015-02-26 15:23:08 +0800 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-03-23 19:51:18 -0500 |
| commit | ff015659b631621fc9d60403a5dfbdf72c1cd058 (patch) | |
| tree | 493c005e167a3a531c8e3363a423139c93ba58be /arch/powerpc/sysdev/fsl_msi.h | |
| parent | 807d38b73b63bbbaa8e1baacf76f7874992f91e8 (diff) | |
| download | linux-0-day-ff015659b631621fc9d60403a5dfbdf72c1cd058.tar.gz linux-0-day-ff015659b631621fc9d60403a5dfbdf72c1cd058.tar.xz | |
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>
Diffstat (limited to 'arch/powerpc/sysdev/fsl_msi.h')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/fsl_msi.h b/arch/powerpc/sysdev/fsl_msi.h index 420cfcbdac01c..a67359d993e52 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 { |