Messages in this thread | | | Date | Mon, 5 Feb 2007 21:20:49 +0400 | From | "Manu Abraham" <> | Subject | Re: 2.6.20 PCI Cannot allocate resource region 2 |
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On 2/5/07, Luming Yu <luming.yu@gmail.com> wrote: > On 2/5/07, Manu Abraham <abraham.manu@gmail.com> wrote: > > Hi, > > > > I get this error on booting up 2.6.20 (Similar error on 2.6.17.7 also, > > the message is slightly different in 2.6.17.7) > > > > PCI Cannot allocate resource region 2 of device 0000:02:0a.0 > Just did a search about this message around the kernel source tree. > The interesting thing is that I see the following comments at several > different arch/drivers files. Is it related to your problem? > > * Known BIOS problems we have to work around: > * - I/O or memory regions not configured > * - regions configured, but not enabled in the command register > * - bogus I/O addresses above 64K used > * - expansion ROMs left enabled (this may sound harmless, but given > * the fact the PCI specs explicitly allow address decoders to be > * shared between expansion ROMs and other resource regions, it's > * at least dangerous) >
The card supports I/O addresses above 64k, i think. It has a PCMCIA slot as well on it, allowing access to the same
I have put my dmesg over here http://kromtek.com/dvb/dmesg.txt It looks like lot of workarounds in my BIOS to me probably, couldn't really make out much in there
The bridge features from the vendor are like this ..
PCI 2.2 Compatible DVB Common Interface EN50221 Compliant Philips I2C 2.0 Compliant Master mode UART – RS232 Receiver mode Support PTC PT2225 TSMC 0.25um 5M1P CMOS Technology PQFP 144 Package
2.5V Core / 3.3V IO 2660x2560 um2 100K Gate 4 Clock Domains 99.6% ATPG Test Coverage 32 scan chains
Implementation Logical Logic synthesis – Synopsys 2003.12-SP1 Test synthesis – Synopsys DFTC 2003.12-SP1 Physical P&R – Synopsys Astro 2003.06-SP2
Verification Logical Simulation – Cadence NCsim 5.1 Physical DRC/LVS – Synopsys Hercules 2003.12
DVB Common Interface EN50221 Compliant Memory Mode CIS Support 8/16 bit IO Mode Indirect Read/Write Issue address and data thru PCI local register Pseudo GPIO Pins A12/A13/A14
Common Access (CA) Card reader – 7816 compliant DVB CSA / B-CAS Multi2 PID/session filters
UART Receiver mode only – 6 bits data Configurable BAUD rate 9600 to 115.2K 16 Word FIFO I2C Master mode only 400k/s default
One of the things that really confused me was, on 2.6.17.7 in lspci it always shows BIST is running. on 2.6.20, it is not there at all.
If this is a bug in the BIOS, i am wondering how the older revisions of the same bridge works. The last two devices in that lspci output are Rev 01 devices
Regards, Manu - 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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