IBM 440GP 36-bit addressing

Eugene Surovegin ebs at
Tue Aug 27 03:13:11 EST 2002


At 08:48 AM 8/26/2002, you wrote:

>The usual(32-bit) way is to mmap(/dev/mem). I don't know if that will work
>36-bit addresses.

It will work only for first 4G of physical address space.
/dev/mem cannot be used to access EPB/OCP or PCI address space on 440.

For this purpose "/dev/mem-like" device can be easily written that takes
into account 36-bit phys addresses.


  Eugene Surovegin <mailto:ebs at>

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