Messages in this thread | | | Date | Fri, 23 Jul 2004 16:21:48 +0200 | From | Olaf Hering <> | Subject | Re: reserve legacy io regions on powermac |
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On Wed, Jul 21, Benjamin Herrenschmidt wrote:
> Note that this is still all workarounds... Nothing prevents you (and some > people actually do that) to put a PCI card with legacy serial ports on it > inside a pmac....
I just tried it on a powerbook pismo, its a pccard combo card, network and modem. Unmodified 2.6.8-rc2 kernel.
putting this into pmac_pcibios_fixup() will break pcmcia.
request_region(0x0UL, 0x1000UL, "reserved legacy io");
0001:01:1a.0 CardBus bridge: Texas Instruments PCI1211 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- Latency: 168, cache line size 08 Interrupt: pin A routed to IRQ 58 Region 0: Memory at a0000000 (32-bit, non-prefetchable) Bus: primary=01, secondary=02, subordinate=05, sec-latency=176 Memory window 0: 90000000-9ffff000 (prefetchable) Memory window 1: f3000000-f31ff000 I/O window 0: 00001000-00008fff I/O window 1: 00009000-000090ff BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+ 16-bit legacy interface ports at 0001
Linux Kernel Card Services options: [pci] [cardbus] [pm] Yenta: CardBus bridge found at 0001:01:1a.0 [0000:0000] Yenta: Enabling burst memory read transactions Yenta: Using CSCINT to route CSC interrupts to PCI Yenta: Routing CardBus interrupts to PCI Yenta TI: socket 0001:01:1a.0, mfunc 0x00000002, devctl 0x60 Yenta: ISA IRQ mask 0x0000, PCI irq 58 Socket status: 30000006
cs: memory probe 0x0c0000-0x0fffff: excluding 0xc0000-0xfffff cs: memory probe 0x60000000-0x60ffffff: excluding 0x60000000-0x60ffffff cs: memory probe 0xa0000000-0xa0ffffff: excluding 0xa0000000-0xa00fffff Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled IN from bad port 3f9 at cdc1b030 IN from bad port 3f9 at cdc1b030 IN from bad port 3f9 at cdc1b030 IN from bad port 2f9 at cdc1b030 IN from bad port 2f9 at cdc1b030 IN from bad port 2f9 at cdc1b030 IN from bad port 3e9 at cdc1b030 IN from bad port 3e9 at cdc1b030 IN from bad port 3e9 at cdc1b030 IN from bad port 2e9 at cdc1b030 IN from bad port 2e9 at cdc1b030 IN from bad port 2e9 at cdc1b030 eth%d: autonegotiation failed; using 10mbs eth%d: MII selected eth%d: media 10BaseT, silicon revision 5 eth1: Compaq: port 0x300, irq 58, hwaddr 00:08:C7:64:68:7B ttyS3 at I/O 0x2e8 (irq = 58) is a 16550A
Module Size Used by serial_cs 11484 1 8250 24036 1 serial_cs serial_core 26752 1 8250 xirc2ps_cs 29904 1 sg 38756 0 st 43004 0 sd_mod 22176 0 sr_mod 20068 0 scsi_mod 139276 4 sg,st,sd_mod,sr_mod ohci1394 40036 0 ieee1394 125128 1 ohci1394 ohci_hcd 25476 0 sungem 34788 0 crc32 4736 1 sungem sungem_phy 9856 1 sungem ds 22916 4 serial_cs,xirc2ps_cs yenta_socket 22688 1 pcmcia_core 73876 4 serial_cs,xirc2ps_cs,ds,yenta_socket
/proc/ioports 00000000-007fffff : /pci@f2000000 000002e8-000002ef : pcmcia_socket0 000002e8-000002ef : serial 00000300-0000030f : pcmcia_socket0 00001000-00008fff : PCI CardBus #02 00009000-000090ff : PCI CardBus #02 00802000-01001fff : /pci@f0000000 00802400-008024ff : 0000:00:10.0 ff7fe000-ffffdfff : /pci@f4000000 /proc/iomem 80000000-afffffff : /pci@f2000000 80000000-8007ffff : 0001:01:17.0 80000034-80000034 : media-bay 80008a00-80008aff : ide-pmac (dma) 80008b00-80008bff : ide-pmac (dma) 80008c00-80008cff : ide-pmac (dma) 80016000-80017fff : via-pmu 8001f000-8001ffff : ide-pmac (ports) 80020000-80020fff : ide-pmac (ports) 80040000-8007ffff : interrupt-controller 90000000-9fffffff : PCI CardBus #02 a0000000-a0000fff : 0001:01:1a.0 a0000000-a0000fff : yenta_socket a0001000-a0001fff : 0001:01:19.0 a0001000-a0001fff : ohci_hcd a0002000-a0002fff : 0001:01:18.0 a0002000-a0002fff : ohci_hcd a0100000-a0100fff : pcmcia_socket0 a0101000-a0101fff : pcmcia_socket0 b0000000-bfffffff : /pci@f0000000 b0000000-b0003fff : 0000:00:10.0 b0000000-b0003fff : aty128fb MMIO b4000000-b7ffffff : 0000:00:10.0 b4000000-b7ffffff : aty128fb FB f1000000-f1ffffff : /pci@f0000000 f3000000-f3ffffff : /pci@f2000000 f3000000-f31fffff : PCI CardBus #02 f5000000-f5ffffff : /pci@f4000000 f5000000-f5000fff : 0002:06:0e.0 f5000000-f50007ff : ohci1394 f5200000-f53fffff : 0002:06:0f.0 f5200000-f53fffff : sungem f8000000-f8ffffff : uni-n
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