diff options
| author | Piotr Ziecik <kosmo@semihalf.com> | 2009-03-17 09:17:50 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2009-03-17 09:17:50 -0600 |
| commit | c9310920e6e7ae0a5c0accbd57d34c194cb31780 (patch) | |
| tree | a84eaa53852d4756095aae2dede0fd2356230aad /arch | |
| parent | 5bee17f18b595937e6beafeee5197868a3f74a06 (diff) | |
| download | lwn-c9310920e6e7ae0a5c0accbd57d34c194cb31780.tar.gz lwn-c9310920e6e7ae0a5c0accbd57d34c194cb31780.zip | |
powerpc/5200: Enable CPU_FTR_NEED_COHERENT for MPC52xx
BestComm, a DMA engine in MPC52xx SoC, requires snooping when
CPU caches are enabled to work properly.
Adding CPU_FTR_NEED_COHERENT fixes NFS problems on MPC52xx machines
introduced by 'powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup
code' (sha1: 4c456a67f501b8b15542c7c21c28812bf88f484b).
Signed-off-by: Piotr Ziecik <kosmo@semihalf.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 4911104791c3..21172badd708 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -241,9 +241,11 @@ extern const char *powerpc_base_platform; /* We need to mark all pages as being coherent if we're SMP or we have a * 74[45]x and an MPC107 host bridge. Also 83xx and PowerQUICC II * require it for PCI "streaming/prefetch" to work properly. + * This is also required by 52xx family. */ #if defined(CONFIG_SMP) || defined(CONFIG_MPC10X_BRIDGE) \ - || defined(CONFIG_PPC_83xx) || defined(CONFIG_8260) + || defined(CONFIG_PPC_83xx) || defined(CONFIG_8260) \ + || defined(CONFIG_PPC_MPC52xx) #define CPU_FTR_COMMON CPU_FTR_NEED_COHERENT #else #define CPU_FTR_COMMON 0 |