Re: IBM Thinkpad G41 PCMCIA problems [Was: Yenta TI: ... no PCI interrupts. Fish. Please report.]

[Russell King]

On Sat, Feb 19, 2005 at 08:36:12PM -0500, Steven Rostedt wrote:
> Linux version 2.6.10 (root@bilbo) (gcc version 3.3.5 (Debian 1:3.3.5-8)) #13 SMP Sat Feb 19 20:12:19 EST 2005
> BIOS-provided physical RAM map:
>  BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
>  BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
>  BIOS-e820: 00000000000d0000 - 00000000000d4000 (reserved)
>  BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
>  BIOS-e820: 0000000000100000 - 000000000f6f0000 (usable)
>  BIOS-e820: 000000000f6f0000 - 000000000f700000 (reserved)
>  BIOS-e820: 000000000f700000 - 000000003fef0000 (usable)
>  BIOS-e820: 000000003fef0000 - 000000003fef8000 (ACPI data)
>  BIOS-e820: 000000003fef8000 - 000000003fefa000 (ACPI NVS)
>  BIOS-e820: 000000003ff00000 - 0000000040000000 (reserved)

Your BIOS is broken.  You probably have 1GB of RAM which extends from
0x00000000 to 0x40000000.  However, there's a hole in the ACPI map
between 0x3fefa000 and 0x3ff00000.  This is where your Cardbus devices
are ending up:

> 3fefa000-3fefa3ff : 0000:00:1f.1
> 3fefb000-3fefbfff : 0000:02:01.0
>   3fefb000-3fefbfff : yenta_socket
> 3fefc000-3fefcfff : 0000:02:01.1
>   3fefc000-3fefcfff : yenta_socket

Changing the bridge type to non-transparent just means that we find
we can't allocate the bridge resources in this small window, so they
get moved elsewhere.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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