Can you test the following patch? It should make the secondary PCI bus
happy. In case it helps, please include output of 'lspci -vvx' as well.
Thanks
Have a nice fortnight
-- Martin `MJ' Mares <mj@ucw.cz> http://atrey.karlin.mff.cuni.cz/~mj/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth "Who is General Failure and why is he reading my disk?"
--- drivers/pci/pci.c 1998/04/25 07:54:55 1.80 +++ drivers/pci/pci.c 1998/04/30 22:23:03 @@ -92,7 +92,7 @@ __initfunc(unsigned int pci_scan_bus(struct pci_bus *bus)) { - unsigned int devfn, l, max, class; + unsigned int devfn, l, max, class, host_bridges = 0; unsigned char cmd, irq, tmp, hdr_type, is_multi = 0; struct pci_dev *dev; struct pci_bus *child; @@ -133,11 +133,12 @@ pcibios_read_config_dword(bus->number, devfn, PCI_CLASS_REVISION, &class); class >>= 8; /* upper 3 bytes */ dev->class = class; + class >>= 8; dev->hdr_type = hdr_type; switch (hdr_type & 0x7f) { /* header type */ case PCI_HEADER_TYPE_NORMAL: /* standard header */ - if (class >> 8 == PCI_CLASS_BRIDGE_PCI) + if (class == PCI_CLASS_BRIDGE_PCI) goto bad; /* * If the card generates interrupts, read IRQ number @@ -159,7 +160,7 @@ dev->rom_address = (l == 0xffffffff) ? 0 : l; break; case PCI_HEADER_TYPE_BRIDGE: /* bridge header */ - if (class >> 8 != PCI_CLASS_BRIDGE_PCI) + if (class != PCI_CLASS_BRIDGE_PCI && class != PCI_CLASS_BRIDGE_HOST) goto bad; for (reg = 0; reg < 2; reg++) { pcibios_read_config_dword(bus->number, devfn, PCI_BASE_ADDRESS_0 + (reg << 2), &l); @@ -169,7 +170,7 @@ dev->rom_address = (l == 0xffffffff) ? 0 : l; break; case PCI_HEADER_TYPE_CARDBUS: /* CardBus bridge header */ - if (class >> 16 != PCI_BASE_CLASS_BRIDGE) + if (class != PCI_CLASS_BRIDGE_CARDBUS) goto bad; for (reg = 0; reg < 2; reg++) { pcibios_read_config_dword(bus->number, devfn, PCI_CB_MEMORY_BASE_0 + (reg << 3), &l); @@ -217,7 +218,7 @@ /* * If it's a bridge, scan the bus behind it. */ - if (class >> 8 == PCI_CLASS_BRIDGE_PCI) { + if (class == PCI_CLASS_BRIDGE_PCI || (class == PCI_CLASS_BRIDGE_HOST && host_bridges++)) { unsigned int buses; unsigned short cr;
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