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authorOlof Johansson <olof@lixom.net>2005-09-21 09:55:31 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-21 10:11:54 -0700
commit3c2822ccb1f8cc96fc006aa82e68e1944290014a (patch)
tree3834b0004ef12b96f699529ca8008a0644531fa3 /drivers/block/cciss.c
parent31f6d9d628739c097964b8dbae939ea997da94a3 (diff)
[PATCH] PPC64: Fix boot for some pre-POWER4 systems
Some RS64 systems (such as F80) have non-python host bridges with EADS. However, they have two EADS with 4 buses each under them, so the old logic that assumed no more than 7 busses per PHB failed miserably. Big thanks to Olaf Hering for helping me test this, he's got one of the few machines that broke from the previous logic. Also, to be a bit smarter at detecting the need for a PHB-level IOMMU table by checking for the presence of an ISA bus. Only PHBs with ISA bridges should need the PHB-level table. Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/block/cciss.c')
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