[U-Boot] [PATCH] 85xx: Add support for not releasing secondary cores via 'mp_holdoff'

[Scott Wood]

On Wed, 29 Sep 2010 13:44:07 -0500
Peter Tyser <ptyser at xes-inc.com> wrote:

> From: Aaron Sierra <asierra at xes-inc.com>
> 
> Some OSes require that secondary cores not be initialized when they
> are booted (eg VxWorks).  By default when U-Boot is compiled with the
> CONFIG_MP option all secondary cores are brought out of reset and held
> in spinloops.  Setting the "mp_holdoff" environment variable to a
> non-null value will cause U-Boot to leave secondary cores in their
> default state.
> 
> Signed-off-by: Aaron Sierra <asierra at xes-inc.com>
> Signed-off-by: Peter Tyser <ptyser at xes-inc.com>
> ---

While this may not be relevant to VxWorks, we should update the device
tree's enable-method if mp_holdoff is set.

-Scott