[U-Boot] [PATCH v2] [RFC] memsize.c: adapt get_ram_size() for address spaces >32 bit

[Scott Wood]

On Thu, May 27, 2010 at 08:16:28PM +0200, Wolfgang Denk wrote:
> get_ram_size() used to use "long" data types for addresses and data,
> which limited it to systems with less than 4 GiB memory. As more and
> more systems are coming up with bigger memory resources, we adapt the
> code to use phys_addr_t / phys_size_t data types instead.

This cannot work as is.  The only systems where this makes a difference are
where physical addresses are larger than virtual pointers -- but you try to
shove the 64-bit physical offset into a 32-bit pointer.

You need to create temporary mappings, if you really want to do this.

-Scott