Re: IBM 440GP 36-bit addressing

Hollis,

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
with
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.

Thanks,

 Eugene Surovegin <mailto:ebs@innocent.com>


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/