# Re: \[PATCH 1/2\] powerpc/85xx: fix problem that prevents PHYS\_64BIT from configurable

- From: Benjamin Herrenschmidt \<benh@kernel.crashing.org\>
- Date: 2012-02-18 02:20:36 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2012/02/9468409
- Thread: https://ratatoskr.run/linuxppc-dev/2012/02/9468281/t.md

```text
On Fri, 2012-02-17 at 18:56 -0600, Scott Wood wrote:
> Yes, or maybe make it "default y", and/or require an "I know what I'm
> doing" option to be set for it to be unset if a board otherwise wants it.
> 
> The ability to turn it off is potentially useful for any board, since
> the address map is determined by boot software which can be changed, but
> we shouldn't make it too easy to fail to select it for boards that
> normally require it.

Don't we have CONFIG_EMBEDDED to make that sort of option visible ?

Cheers,
Ben.
```