Messages in this thread |  | | Date | Wed, 5 Mar 2003 01:30:37 +0300 | From | Ivan Kokshaysky <> | Subject | Re: PCI init issues |
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On Tue, Mar 04, 2003 at 01:16:22PM -0500, Donald Becker wrote: > Incorrect. > Most quad Tulip boards have the bus bridge wired so that all interrupts > are sent on the INTA output of the board.
This can be true for older cards, but post-1998 hardware must follow the spec. PCI-to-PCI Bridge Architecture Specification, Rev 1.1, Dec 18, 1998, pp 113-114:
"... The interrupt binding defined in this table is mandatory for expansion boards utilizing a bridge.
[table skipped]
Device 0 on a secondary bus will have its INTA# line connected to the INTA# line of the connector. Device 1 will have its INTA# line connected to INTB# of the connector. This sequence continues and then wraps around once INTD# has been assigned."
I know for a fact that at least D-Link card mentioned in some reports utilizes all four INT# lines, because I have one.
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