[POWERPC] 85xx: Cleaning up machine probing

Cleaned up the probing functionality to be more consistent across all 85xx
boards and actually check to see if we should be running on a given board.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/85xx/mpc8568_mds.c

@@ -74,7 +74,6 @@ static void __init mpc8568_mds_setup_arch(void)
 	struct device_node *np;
 	static u8 *bcsr_regs = NULL;
 
-
 	if (ppc_md.progress)
 		ppc_md.progress("mpc8568_mds_setup_arch()", 0);
 
@@ -206,7 +205,6 @@ static void __init mpc8568_mds_pic_init(void)
 
 	mpic_init(mpic);
 
-
 #ifdef CONFIG_QUICC_ENGINE
 	np = of_find_node_by_type(NULL, "qeic");
 	if (!np)
@@ -217,24 +215,15 @@ static void __init mpc8568_mds_pic_init(void)
 #endif				/* CONFIG_QUICC_ENGINE */
 }
 
-
 static int __init mpc8568_mds_probe(void)
 {
-	char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
-					  "model", NULL);
-	if (model == NULL)
-		return 0;
-	if (strcmp(model, "MPC8568EMDS"))
-		return 0;
-
-	DBG("MPC8568EMDS found\n");
+        unsigned long root = of_get_flat_dt_root();
 
-	return 1;
+        return of_flat_dt_is_compatible(root, "MPC85xxMDS");
 }
 
-
 define_machine(mpc8568_mds) {
-	.name		= "MPC8568E MDS",
+	.name		= "MPC85xx MDS",
 	.probe		= mpc8568_mds_probe,
 	.setup_arch	= mpc8568_mds_setup_arch,
 	.init_IRQ	= mpc8568_mds_pic_init,

arch/powerpc/platforms/85xx/mpc85xx_ads.c

@@ -272,10 +272,9 @@ static void mpc85xx_ads_show_cpuinfo(struct seq_file *m)
  */
 static int __init mpc85xx_ads_probe(void)
 {
-	/* We always match for now, eventually we should look at the flat
-	   dev tree to ensure this is the board we are suppose to run on
-	*/
-	return 1;
+        unsigned long root = of_get_flat_dt_root();
+
+        return of_flat_dt_is_compatible(root, "MPC85xxADS");
 }
 
 define_machine(mpc85xx_ads) {

arch/powerpc/platforms/85xx/mpc85xx_cds.c

@@ -291,11 +291,9 @@ static void mpc85xx_cds_show_cpuinfo(struct seq_file *m)
  */
 static int __init mpc85xx_cds_probe(void)
 {
-	/* We always match for now, eventually we should look at
-	 * the flat dev tree to ensure this is the board we are
-	 * supposed to run on
-	 */
-	return 1;
+        unsigned long root = of_get_flat_dt_root();
+
+        return of_flat_dt_is_compatible(root, "MPC85xxCDS");
 }
 
 define_machine(mpc85xx_cds) {