On Nov 3, 2011, at 2:38 PM, Timur Tabi wrote:

Kconfig option PHYS_64BIT sets the size of phys_addr_t to 64 bits, =

which

allows support for a 36-bit physical address space.  With this option, =

the

kernel can support more than 2GB of RAM, but the larger address size
impacts performance slightly.
=20
By including "select PHYS_64BIT" in the Kconfig for a particular =

board,

that option is forced enabled, and it becomes impossible to create a =

32-bit

kernel.  Instead, we should depend on the defconfig to enable this =

option.

We still build a 36-bit kernel by default, and we also allow users to =

build

32-bit kernels if they really want.
=20
Signed-off-by: Timur Tabi <redacted>
---
arch/powerpc/platforms/85xx/Kconfig |    1 -
1 files changed, 0 insertions(+), 1 deletions(-)

If you want me to apply this please also provided a 32-bit .dts for =
p1022ds.  This should be pretty trivial based on my recent .dts =
cleanups.

- k=