Messages in this thread | | | From | Tim Hockin <> | Subject | Re: [PATCH] PCI-Devices and ServerWorks chipset | Date | Mon, 22 Jan 2001 21:01:36 -0600 (CST) |
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> > patch is wrong -- it doesn't make any sense to scan a bus _range_. The registers > > 0x44 and 0x45 are probably ID's of two primary buses and the code should scan > > both of them, but not the space between them. >
0x44 is the primary bus number of the host bridge, and 0x45 is the subordinate bus number for the bridge. Just like a PCI-PCI bridge, but different :) Since there are two CNB30 functions, each has unique values for this. The primary bus of the second bridge must be the subordinate bus of the first bridge + 1. PRIMARY(1) = SUBORDINATE(0) + 1;
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