I have a Dell Inspiron 5000e which shows some odd behavior related to
the PCI and PCMCIA systems. I believe this problem is related to the
kernel more than the PCMCIA modules, because the "fix" involves
booting the system to 2.2 and then into 2.4. Though I am now using
different PCMCIA versions under 2.2 and 2.4, when the problem
originally appeared I was using the same PCMCIA version under both
kernels and it exhibited the same behavior I describe below.
After a power-off cold-boot into a 2.4 kernel the PCMCIA modules from
David Hind's external PCMCIA package are not able to load. This
problem is present in the latest 2.4.2 and has been present through
the pre-2.4 series. The error given is:
Linux PCMCIA Card Services 3.1.24
kernel build: 2.4.2 unknown
options: [pci] [cardbus] [apm]
Intel PCIC probe: PCI: Found IRQ 11 for device 00:04.0
PCI: The same IRQ used for device 00:04.1
PCI: The same IRQ used for device 01:00.0
Bad bridge mapping at 0x13ff0000!
not found.
ds: no socket drivers loaded!
To re-enable PCMCIA I have to power off, boot 2.2.17, load the PCMCIA
modules (version 3.1.21), and then reboot without a power off to
2.4.x. This setup will continue to work across reboots as long as the
machines is not turned off. As best I can tell, none of these steps
are superstitious, because if I leave one out then things do not
work. I am not as confident about the importance of the version
numbers, because I have not tried anything past 2.2.17 and 3.1.21 to
do the "reset". I have tried BIOS, Direct, and Any PCI access with
identical results.
The output from the loading of PCMCIA under 2.2.17 is:
Linux PCMCIA Card Services 3.1.21
kernel build: 2.2.17 unknown
options: [pci] [cardbus] [apm]
PCI routing table version 1.0 at 0xfdf50
00:04.0 -> irq 11
00:04.1 -> irq 11
Intel PCIC probe:
TI 1225 rev 01 PCI-to-CardBus at slot 00:04, mem 0x68000000
host opts [0]: [ring] [serial pci & irq] [pci irq 11] [lat 168/32] [bus 32/34]
host opts [1]: [ring] [serial pci & irq] [pci irq 11] [lat 168/32] [bus 35/37]
ISA irqs (scanned) = 3,4,7,9,10,15 PCI status changes
and when the PCMCIA modules properly load under 2.4.2 I get:
Linux PCMCIA Card Services 3.1.24
kernel build: 2.4.2 unknown
options: [pci] [cardbus] [apm]
Intel PCIC probe: PCI: Found IRQ 11 for device 00:04.0
PCI: The same IRQ used for device 00:04.1
PCI: The same IRQ used for device 01:00.0
PCI: Found IRQ 11 for device 00:04.1
PCI: The same IRQ used for device 00:04.0
PCI: The same IRQ used for device 01:00.0
TI 1225 rev 01 PCI-to-CardBus at slot 00:04, mem 0x68000000
host opts [0]: [ring] [serial pci & irq] [pci irq 11] [lat 168/32] [bus 2/5]
host opts [1]: [ring] [serial pci & irq] [pci irq 11] [lat 168/32] [bus 6/9]
ISA irqs (scanned) = 3,4,7,10,15 PCI status changes
The PCI messages I get from the kernel during boot are:
PCI: PCI BIOS revision 2.10 entry at 0xfd9ae, last bus=1
PCI: Probing PCI hardware
PCI: Using IRQ router PIIX [8086/7110] at 00:07.0
PCI: Found IRQ 11 for device 00:04.0
PCI: The same IRQ used for device 00:04.1
PCI: The same IRQ used for device 01:00.0
PCI: Cannot allocate resource region 4 of device 00:07.1
got res[1080:108f] for resource 4 of Intel Corporation 82371AB PIIX4 IDE
Limiting direct PCI/PCI transfers.
and lspci -v:
00:00.0 Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge (rev 03)
Flags: bus master, medium devsel, latency 64
Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 1.0
00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev 03) (prog-if 00 [Normal decode])
Flags: bus master, 66Mhz, medium devsel, latency 128
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 00002000-00002fff
Memory behind bridge: f4000000-f40fffff
Prefetchable memory behind bridge: f8000000-fbffffff
00:04.0 CardBus bridge: Texas Instruments PCI1225 (rev 01)
Subsystem: COMPAL Electronics Inc: Unknown device 0011
Flags: bus master, medium devsel, latency 168, IRQ 11
Memory at 68000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=02, subordinate=05, sec-latency=32
I/O window 0: 00000000-00000003
I/O window 1: 00000000-00000003
16-bit legacy interface ports at 0001
00:04.1 CardBus bridge: Texas Instruments PCI1225 (rev 01)
Subsystem: COMPAL Electronics Inc: Unknown device 0011
Flags: bus master, medium devsel, latency 168, IRQ 11
Memory at 68001000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=06, subordinate=09, sec-latency=32
I/O window 0: 00000000-00000003
I/O window 1: 00000000-00000003
16-bit legacy interface ports at 0001
00:07.0 Bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02)
Flags: bus master, medium devsel, latency 0
00:07.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01) (prog-if 80 [Master])
Flags: bus master, medium devsel, latency 64
I/O ports at 1080 [size=16]
00:07.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01) (prog-if 00 [UHCI])
Flags: bus master, medium devsel, latency 64, IRQ 5
I/O ports at 1060 [size=32]
00:07.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 03)
Flags: medium devsel
00:08.0 Multimedia audio controller: ESS Technology ES1978 Maestro 2E (rev 10)
Subsystem: COMPAL Electronics Inc: Unknown device 0011
Flags: bus master, medium devsel, latency 64, IRQ 5
I/O ports at 1400 [size=256]
Capabilities: [c0] Power Management version 2
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility M3 AGP 2x (rev 02) (prog-if 00 [VGA])
Subsystem: COMPAL Electronics Inc: Unknown device 0011
Flags: bus master, stepping, fast Back2Back, 66Mhz, medium devsel, latency 66, IRQ 11
Memory at f8000000 (32-bit, prefetchable) [size=64M]
I/O ports at 2000 [size=256]
Memory at f4000000 (32-bit, non-prefetchable) [size=16K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [50] AGP version 2.0
Capabilities: [5c] Power Management version 2
If any additional information would be useful in tracking down this
problem please let me know. This might be apocryphal, but I don't
believe the problem occured until after the first time I used a
32-bit PC-CARD ethernet card. It is my recollection that I had no
problems during the first months I owned the machine when I only used
16-bit cards.
-- Thanks, Jeff Lessem. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Feb 23 2001 - 21:00:27 EST