Multiple PCI buses in 2.4?

bob at kunk.jriver.com bob at kunk.jriver.com
Fri Mar 16 06:33:45 EST 2001


I'm wondering what the state of support for multiple pci buses on
PowerMacs is in 2.4? I see by looking at the code and reading the
lists that work is being done on it since 2.4.1.

The 7X00/8X00 has 2 bridge devices both of which are recognized by
2.42 in the  boot messages but an lspci only shows one bus.

00:0b.0 Host bridge: Apple Computer Inc. Bandit PowerPC host bridge (rev 03)
00:0d.0 Ethernet controller: Digital Equipment Corporation DECchip 21142/43 (rev 21)
00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RT8029(AS)
00:0f.0 Communication controller: Comtrol Corporation RocketPort 8 Intf (rev 02)00:10.0 Class ff00: Apple Computer Inc. Grand Central I/O (rev 02)

The planb video4linux device is on the other bus and upon attempting to
load the planb module I get the following...

Linux video capture interface: v1.00
PlanB: Found on bus 1, dev 13, func 0, membase 0x90000000 (base reg. 0x10)
PlanB: cannot find PCI device!

The call that fails...

pdev = pci_find_slot (bus, dev_fn);

I've worked most recently with the 2_5 kernel from bitkeeper.

Bob
--
Robert E. Brose II    N0QBJ
http://www.jriver.com/~bob/
bob at kunk.jriver.com

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