85xx: Add support for not releasing secondary cores via 'mp_holdoff'
authorAaron Sierra <asierra@xes-inc.com>
Thu, 30 Sep 2010 17:22:16 +0000 (12:22 -0500)
committerKumar Gala <galak@kernel.crashing.org>
Wed, 20 Oct 2010 07:38:40 +0000 (02:38 -0500)
commit9d64c6bb4a0db0f1c74a46f1cabe85d5a7a8a19b
tree77591aacfd111abfa122cb30cb54fe9405f55ff0
parent58edbc9caaef4efbf12de8a451d70c2ad86934bf
85xx: Add support for not releasing secondary cores via 'mp_holdoff'

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 'yes'
or '1' will cause U-Boot to leave secondary cores in their default
state.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
arch/powerpc/cpu/mpc85xx/fdt.c
arch/powerpc/cpu/mpc85xx/mp.c
arch/powerpc/cpu/mpc85xx/mp.h