[POWERPC] Add starting of secondary 86xx CPUs.

Clear the high BATS during load_up_mmu if FTR_HAS_HIGH_BATS.
Allow just a bit more time for secondary CPUs to phone home.

Signed-off-by: Wei Zhang <Wei.Zhang@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 530f7db..c5d179d 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -492,7 +492,7 @@
 	 * -- Cort
 	 */
 	if (system_state < SYSTEM_RUNNING)
-		for (c = 5000; c && !cpu_callin_map[cpu]; c--)
+		for (c = 50000; c && !cpu_callin_map[cpu]; c--)
 			udelay(100);
 #ifdef CONFIG_HOTPLUG_CPU
 	else