[GIT]: Make LMB code sharable with sparc64.

[David Miller]

From: Kumar Gala <galak at kernel.crashing.org>
Date: Wed, 13 Feb 2008 07:12:26 -0600

> Does sparc have the concept of a phys_addr_t?  We are in the process  
> of expanding the lmb support to deal with 36-bit physical addresses on  
> 32-bit machines.

On sparc64, where I intend to use this, unsigned long's are 64-bit.
If you use some phys_addr_t type instead to help ppc32 along, that
would be perfectly fine with me.