I have written PCI driver which works fine along with MPC8347 and two
PCI card connected in a single PCI bus. When I try to communicate same PCI card
using PCI bridge ( PCI2050B ), Linux does detect PCI card on Secondary bus but
same driver doesn't work !!!!
Do I need to enable support for second PCI host controller at
kernel level to make it work? Or I need to do something else ? I tried
compiling PPC-linux kernel after enabling CONFIG_85xx_PCI2 kernel doesn't
compile it gives me error while compiling "arch/ppc/syslib/ppc83xx_setup.c"
Kernel version I'm using is 2.6.13.
****** Board along with which PCI card works ************
lspci -v
/demo # lspci -v
00:1b.0 Non-VGA unclassified device: Texas Instruments: Unknown device 9065
(rev 01)
Flags: bus master, medium devsel, latency 128, IRQ 21
Memory at 9fc00000 (32-bit, prefetchable) [size=4M]
Memory at 9f000000 (32-bit, non-prefetchable) [size=8M]
I/O ports at 3ffffff0 [size=16]
Capabilities: [40] Power Management version 2
00:1c.0 Non-VGA unclassified device: Texas Instruments: Unknown device 9065
(rev 01)
Flags: bus master, medium devsel, latency 128, IRQ 18
Memory at 9ec00000 (32-bit, prefetchable) [size=4M]
Memory at 9e000000 (32-bit, non-prefetchable) [size=8M]
I/O ports at 3fffffe0 [size=16]
Capabilities: [40] Power Management version 2
****** Board along with which PCI card doesn't work ************
lspci -v
PCI devices found:
Bus 0, device 17, function 0:
Class 0604: PCI device 104c:ac28 (rev 2).
Bus 1, device 1, function 0:
Class 0000: PCI device 104c:9065 (rev 1).
Master Capable. Latency=128.
Prefetchable 32 bit memory at 0x9fc00000 [0x9fffffff].
Non-prefetchable 32 bit memory at 0x9f000000 [0x9f7fffff].
I/O at 0xfff0 [0xffff].
Bus 1, device 2, function 0:
Class 0000: PCI device 104c:9065 (rev 1).
Master Capable. Latency=128.
Prefetchable 32 bit memory at 0x9ec00000 [0x9effffff].
Non-prefetchable 32 bit memory at 0x9e000000 [0x9e7fffff].
I/O at 0xffe0 [0xffef].
Any help would be appreciated I'm running out of ideas
what to do next !!!!!!!!
Regards,
-Rajan Rai
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