Messages in this thread | | | From | fabrizio.gennari@philips ... | Subject | Oxford Semiconductor's OXCB950 UART not recognized by serial.c | Date | Wed, 20 Feb 2002 16:14:03 +0100 |
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We have 32-bit CardBus cards with OXCB950 CardBus (PCI ID 1415:950b) UART chips on them (OXCB950 is the CardBus version of 16C950) . The module serial_cb in the pcmcia-cs package recognizes them correctly. But, when not using serial_cb, the function serial_pci_guess_board in serial.c doesn't (kernel 2.4.17 tested). The problem is that the card advertises 3 i/o memory regions and 2 ports. If one replaces the line
if (num_iomem <= 1 && num_port == 1) {
with
if (num_port >= 1) {
in the function serial_pci_guess_board(), the card is detected and works perfectly. Only, when inserting it, the kernel displays the message:
Redundant entry in serial pci_table. Please send the output of lspci -vv, this message (1415,950b,1415,0001) and the manufacturer and name of serial board or modem board to serial-pci-info@lists.sourceforge.net.
And this is the output of lspci -vv, only the part relevant to the Oxford card:
03:00.0 Serial controller: Oxford Semiconductor Ltd CardBus Device (prog-if 06 [16950]) Subsystem: Oxford Semiconductor Ltd: Unknown device 0001 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at 4800 [size=8] Region 1: Memory at 10c00000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at 4810 [size=16] Region 3: Memory at 10c01000 (32-bit, non-prefetchable) [size=4K] Region 4: Memory at 10c02000 (32-bit, non-prefetchable) [size=4K] Capabilities: [40] Power Management version 1 Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0+,D1-,D2+,D3hot+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Fabrizio Gennari Philips Research Monza via G.Casati 23, 20052 Monza (MI), Italy tel. +39 039 2037816, fax +39 039 2037800 - 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/
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