Re: Problem with ioremap which returns NULL in 2.6 kernel

[Markus Lidel <Markus.Lidel@shadowconnect.com>]

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
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E-Mail: Markus.Lidel@shadowconnect.com
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