Messages in this thread | | | Date | Wed, 02 Jun 2004 10:55:07 +0200 | From | Markus Lidel <> | Subject | Re: Problem with ioremap which returns NULL in 2.6 kernel |
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Hello,
Jeff Garzik wrote: >>>> could someone help me with a ioremap problem. If there are two >>>> controllers plugged in, the ioremap request for the first controller >>>> is successfull, but the second returns NULL. Here is the output of >>>> the driver: >>>> i2o: Checking for PCI I2O controllers... >>>> i2o: I2O controller on bus 0 at 72. >>>> i2o: PCI I2O controller at 0xD0000000 size=134217728 >>>> I2O: MTRR workaround for Intel i960 processor >>>> i2o/iop0: Installed at IRQ17 >>>> i2o: I2O controller on bus 0 at 96. >>>> i2o: PCI I2O controller at 0xD8000000 size=134217728 >>>> i2o: Unable to map controller. >>> probably too large an area to be remapping. Try remapping only the >>> memory area needed, and not the entire area. >> Is there a way, to increase the size, which could be remapped, or is >> there a way, to find out what is the maximum size which could be >> remapped? > My preferred approach would be: consider that the hardware does not > need the entire 0x8000000-byte area mapped. Plain and simple. > This is a "don't do that" situation, and that renders the other > questions moot :) You should only be mapping what you need to map.
Okay, i'll let try it out with only 64MB.
Thanks again for your help!
Best regards,
Markus Lidel ------------------------------------------ Markus Lidel (Senior IT Consultant)
Shadow Connect GmbH Carl-Reisch-Weg 12 D-86381 Krumbach Germany
Phone: +49 82 82/99 51-0 Fax: +49 82 82/99 51-11
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