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[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>
This commit is contained in:
Benjamin Herrenschmidt 2005-12-19 16:49:07 +11:00 committed by Paul Mackerras
parent 1beb6a7d6c
commit 56c8eaee65
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/sysdev/dart_iommu.c
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@ -216,12 +216,12 @@ static int dart_init(struct device_node *dart_node)
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) |