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authorPiotr Ziecik <kosmo@semihalf.com>2009-03-17 09:17:50 -0600
committerGrant Likely <grant.likely@secretlab.ca>2009-03-17 09:17:50 -0600
commitc9310920e6e7ae0a5c0accbd57d34c194cb31780 (patch)
treea84eaa53852d4756095aae2dede0fd2356230aad /arch
parent5bee17f18b595937e6beafeee5197868a3f74a06 (diff)
downloadop-kernel-dev-c9310920e6e7ae0a5c0accbd57d34c194cb31780.zip
op-kernel-dev-c9310920e6e7ae0a5c0accbd57d34c194cb31780.tar.gz
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.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index 4911104..21172ba 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
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