powerpc/85xx: Don't reset the MPIC for CAMP mode on MPC8572DS

The flag MPIC_WANTS_RESET shouldn't be set if we are doing cooperative
asymmetric MP.  The second linux shouldn't reset the pic or the first
one gets very confused.
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/85xx/mpc85xx_ds.c

@@ -63,6 +63,7 @@ void __init mpc85xx_ds_pic_init(void)
 	struct device_node *cascade_node = NULL;
 	int cascade_irq;
 #endif
+	unsigned long root = of_get_flat_dt_root();
 
 	np = of_find_node_by_type(NULL, "open-pic");
 	if (np == NULL) {
@@ -76,11 +77,19 @@ void __init mpc85xx_ds_pic_init(void)
 		return;
 	}
 
+	if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) {
+		mpic = mpic_alloc(np, r.start,
+			MPIC_PRIMARY |
+			MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
+			0, 256, " OpenPIC  ");
+	} else {
 		mpic = mpic_alloc(np, r.start,
 			  MPIC_PRIMARY | MPIC_WANTS_RESET |
 			  MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
 			  MPIC_SINGLE_DEST_CPU,
 			0, 256, " OpenPIC  ");
+	}
+
 	BUG_ON(mpic == NULL);
 	of_node_put(np);