Messages in this thread |  | | | Date | Thu, 29 Jun 2006 20:54:15 +0200 | | From | Rafał Bilski <> | | Subject | Re: [PATCH] (Longhaul 1/5) PCI: Protect bus master DMA from Longhaul by rw semaphores |
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> Maybe you need to do something with the cache bits in CR0 as well. It > could be something like that. Hardware can be stuborn. I remember the > old Winchips (C3 predecessors) hanging when trying to disable caching of > plain ram via MCR's for instance. >
I did it like in chapter 10.5.3. Result is exacly the same - processor stops. If I set NW flag CPU is still going, but I have "exception in interrupt" message. I'm starting thinking that this will not work for "Nehemiah" core.
Thanks Rafał
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