Bill Paul d9d628b000 Fix nexus_pcib_is_host_bridge() so that it detects my 486's PCI bus ... correctly. It has the following code: if (class != PCIC_BRIDGE || subclass != PCIS_BRIDGE_HOST) return NULL; My 486 has an Integrated Micro Solutions PCI bridge which identifies itself as subclass PCIS_BRIDGE_OTHER, not PCIS_BRIDGE_HOST. Consequently, it gets ignored. In my opinion, the correct test should be: if ((class != PCIC_BRIDGE) && (subclass != PCIS_BRIDGE_HOST)) return NULL; That way the test still succeeds because the chip's class is PCIC_BRIDGE. Clearly it's not reasonable to expect all host to PCI bridges to always have a subclass of PCIS_BRIDGE_HOST since I've got one that doesn't. This way the sanity test should remain relatively sane while still allowing some oddball yet correct hardware to work. If somebody has a better way to do it, go ahead and tweak the test, but be aware that class == PCIC_BRIDGE and subclass == PCIS_BRIDGE_OTHER is a valid case. While I was here, I also added an explicit ID string for the IMS chipset. I also dealt with a minor style nit: it's bad karma not to have a default case for your switch statements, but the one in this routine doesn't have one. The default string of "Host to PCI bridge" is now assigned in a default case of the switch statement instead of initializing "s" with the string before the switch and then not having any default case.		1999-08-09 21:12:18 +00:00
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pci_bus.c	Fix nexus_pcib_is_host_bridge() so that it detects my 486's PCI bus	1999-08-09 21:12:18 +00:00
pci_cfgreg.c	Fix nexus_pcib_is_host_bridge() so that it detects my 486's PCI bus	1999-08-09 21:12:18 +00:00