Prefix to OFW's chosen/bootpath

[Daniel Drake]

On Mon, Aug 15, 2011 at 10:59 PM, James Cameron <quozl at laptop.org> wrote:
> Address of SDIO controller in the SoC.  See show-devs for others.
> Plausible that a different model of SoC might eventually have a
> different value, but I don't expect that soon.
>
> You might parse out and ignore the bit between @ and /.

One of the main reasons we parse bootpath is to figure out which SD
bus we are booting from (i.e. internal/external SD card). The address
presumably changes for internal vs external, as it does on x86. So it
should be parsed and not ignored.

Daniel