[PATCH] powerpc: Fix g5 DART init
The patch enabling the new G5's with U4 broke initialization of the DART
driver, causing it to trigger a BUG_ON for a case that is actually
valid. This patch fixes it:
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index df0dbde..e00b46b 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -216,12 +216,12 @@
base = dart_tablebase >> DART_PAGE_SHIFT;
size = dart_tablesize >> DART_PAGE_SHIFT;
if (dart_is_u4) {
- BUG_ON(size & ~DART_SIZE_U4_SIZE_MASK);
+ size &= DART_SIZE_U4_SIZE_MASK;
DART_OUT(DART_BASE_U4, base);
DART_OUT(DART_SIZE_U4, size);
DART_OUT(DART_CNTL, DART_CNTL_U4_ENABLE);
} else {
- BUG_ON(size & ~DART_CNTL_U3_SIZE_MASK);
+ size &= DART_CNTL_U3_SIZE_MASK;
DART_OUT(DART_CNTL,
DART_CNTL_U3_ENABLE |
(base << DART_CNTL_U3_BASE_SHIFT) |