PCCARD unrecogonized by FreeBSD 5.1-RELEASE on IBM Thinkpad 600

[Greg Troxel]

You have mangled the dmesg output by linewrapping it.  Please try to
avoid this.

I have a 600 (2645-41U), and run NetBSD on it, but I think my NetBSD
experience will be helpful.  The key point is that the irq for the cbb
was unconfigured, and the kernel patched it to 11, and then everything
was fine.

If I don't try to use the cbb, and let the kernel probe the pcmcia
controller in ISA mode, all works fine (with 16-bit cards).

Probing cbb, I get a problem with "unconfigured IRQ".  Turning on
various PCIBIOS options (in NetBSD), I found that the IRQ in the PIR
was set to -1, which means that the BIOS failed to configure the
device properly.   I set a PCIBIOS_FIXUP_INTR option (actually many):

options         PCIBIOS                 # PCI BIOS support
options         PCIBIOSVERBOSE          # PCI BIOS verbose info
options         PCIBIOS_ADDR_FIXUP      # fixup PCI I/O addresses
options         PCIBIOS_BUS_FIXUP       # fixup PCI bus numbering
options         PCIBIOS_INTR_FIXUP      # fixup PCI interrupt routing
options         PCIBIOS_IRQS_HINT=0x0a00 # PCI interrupts hint. IRQ 9 or 11
options         PCIBIOS_INTR_GUESS      # see pcibios(4)


The kernel then patched the irq:

BIOS32 rev. 0 found at 0xfd820
PCI BIOS rev. 2.1 found at 0xfd880
pcibios: config mechanism [1][x], special cycles [1][x], last bus 6
PCI IRQ Routing Table rev. 1.0 found at 0xf9e10, size 96 bytes (4 entries)
PCI Interrupt Router at 000:07:0
PCI Exclusive IRQs: 11
PIR Entry 0:
        Bus: 0  Device: 7
                INTA: link 0x60 bitmap 0xdef8
                INTB: link 0x00 bitmap 0x0000
                INTC: link 0x00 bitmap 0x0000
                INTD: link 0x63 bitmap 0xdef8
PIR Entry 1:
        Bus: 0  Device: 2
                INTA: link 0x60 bitmap 0xdef8
                INTB: link 0x61 bitmap 0xdef8
                INTC: link 0x00 bitmap 0x0000
                INTD: link 0x00 bitmap 0x0000
PIR Entry 2:
        Bus: 0  Device: 3
                INTA: link 0x60 bitmap 0xdef8
                INTB: link 0x00 bitmap 0x0000
                INTC: link 0x00 bitmap 0x0000
                INTD: link 0x00 bitmap 0x0000
PIR Entry 3:
        Bus: 0  Device: 4
                INTA: link 0x60 bitmap 0xdef8
                INTB: link 0x61 bitmap 0xdef8
                INTC: link 0x62 bitmap 0xdef8
                INTD: link 0x63 bitmap 0xdef8
pciintr_link_fixup: PIRQ 0x00 already connected to IRQ 11
pciintr_link_fixup: PIRQ 0x03 already connected to IRQ 11
pciintr_link_fixup: PIRQ 0x01 already connected to IRQ 11
pciintr_link_fixup: PIRQ 0x02 not connected
pciintr_link_fixup (stage 2): assigning IRQ 11 to PIRQ 0x02
pciintr_link_route: route of PIRQ 0x00 -> IRQ 11 preserved BIOS setting
pciintr_link_route: route of PIRQ 0x03 -> IRQ 11 preserved BIOS setting
pciintr_link_route: route of PIRQ 0x01 -> IRQ 11 preserved BIOS setting
------------------------------------------
  device vendor product pin PIRQ IRQ stage
------------------------------------------
000:02:0 0x104c 0xac16   A  0x00  11  0    fixed up
000:02:1 0x104c 0xac16   B  0x01  11  0    fixed up
000:03:0 0x10c8 0x0004   A  0x00  11  0    already assigned
000:07:2 0x8086 0x7112   D  0x03  11  0    already assigned
------------------------------------------
PCI fixup examining 8086:7192
PCI fixup examining 104c:ac16
PCI bridge 0: primary 0, secondary 1, subordinate 1
PCI fixup examining 104c:ac16
PCI bridge 1: primary 0, secondary 2, subordinate 2
PCI fixup examining 10c8:04
PCI fixup examining 8086:7110
PCI fixup examining 8086:7111
PCI fixup examining 8086:7112
PCI fixup examining 8086:7113
PCI bus #2 is the last bus

Then, cbb0/1 were attached ok:

cbb0 at pci0 dev 2 function 0: Texas Instruments PCI1250 PCI-CardBus Bridge (rev. 0x02) (chipflags 3)
cbb0: socket base address 0x20301000
cbb0: intrpin A, intrtag 11
cbb1 at pci0 dev 2 function 1: Texas Instruments PCI1250 PCI-CardBus Bridge (rev. 0x02) (chipflags 3)
cbb1: socket base address 0x20300000
cbb1: intrpin B, intrtag 11
CardBus latency timer 0xb0 (b0010100)
PCI latency timer 0xa8 (82a808)
pccbb_power: CARDBUS_VCC_0V and CARDBUS_VPP_0V [44]
cbb0: interrupting at irq 11
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 1 device 0
pcmcia0 at cardslot0


and finally:

ex0 at cardbus1 dev 0 function 0: 3Com 3c575B-TX Ethernet

Also a 16-bit card works too.

-- 
        Greg Troxel <gdt at ir.bbn.com>