diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 1f54623db9b7..93451850ed83 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o
 obj-$(CONFIG_MPC8536_DS)  += mpc8536_ds.o
 obj-$(CONFIG_MPC85xx_DS)  += mpc85xx_ds.o p2020.o
 obj-$(CONFIG_MPC85xx_MDS) += mpc85xx_mds.o
-obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o
+obj-$(CONFIG_MPC85xx_RDB) += mpc85xx_rdb.o p2020.o
 obj-$(CONFIG_P1010_RDB)   += p1010rdb.o
 obj-$(CONFIG_P1022_DS)    += p1022_ds.o
 obj-$(CONFIG_P1022_RDK)   += p1022_rdk.o
diff --git a/arch/powerpc/platforms/85xx/mpc85xx.h b/arch/powerpc/platforms/85xx/mpc85xx.h
index ca8b39e6b05a..8f7b37c1de87 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx.h
+++ b/arch/powerpc/platforms/85xx/mpc85xx.h
@@ -17,5 +17,7 @@ static inline void __init mpc85xx_qe_par_io_init(void) {}
 
 void __init mpc85xx_ds_pic_init(void);
 void __init mpc85xx_ds_setup_arch(void);
+void __init mpc85xx_rdb_setup_arch(void);
+void __init mpc85xx_rdb_pic_init(void);
 
 #endif
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index b23f826339b5..d1f497e086ed 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -48,7 +48,7 @@ void __init mpc85xx_rdb_pic_init(void)
 /*
  * Setup the architecture
  */
-static void __init mpc85xx_rdb_setup_arch(void)
+void __init mpc85xx_rdb_setup_arch(void)
 {
 	if (ppc_md.progress)
 		ppc_md.progress("mpc85xx_rdb_setup_arch()", 0);
@@ -93,8 +93,6 @@ static void __init mpc85xx_rdb_setup_arch(void)
 	pr_info("MPC85xx RDB board from Freescale Semiconductor\n");
 }
 
-machine_arch_initcall(p2020_rdb, mpc85xx_common_publish_devices);
-machine_arch_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices);
 machine_arch_initcall(p1020_mbg_pc, mpc85xx_common_publish_devices);
 machine_arch_initcall(p1020_rdb, mpc85xx_common_publish_devices);
 machine_arch_initcall(p1020_rdb_pc, mpc85xx_common_publish_devices);
@@ -107,13 +105,6 @@ machine_arch_initcall(p1024_rdb, mpc85xx_common_publish_devices);
 /*
  * Called very early, device-tree isn't unflattened
  */
-static int __init p2020_rdb_probe(void)
-{
-	if (of_machine_is_compatible("fsl,P2020RDB"))
-		return 1;
-	return 0;
-}
-
 static int __init p1020_rdb_probe(void)
 {
 	if (of_machine_is_compatible("fsl,P1020RDB"))
@@ -138,13 +129,6 @@ static int __init p1021_rdb_pc_probe(void)
 	return 0;
 }
 
-static int __init p2020_rdb_pc_probe(void)
-{
-	if (of_machine_is_compatible("fsl,P2020RDB-PC"))
-		return 1;
-	return 0;
-}
-
 static int __init p1025_rdb_probe(void)
 {
 	return of_machine_is_compatible("fsl,P1025RDB");
@@ -165,20 +149,6 @@ static int __init p1024_rdb_probe(void)
 	return of_machine_is_compatible("fsl,P1024RDB");
 }
 
-define_machine(p2020_rdb) {
-	.name			= "P2020 RDB",
-	.probe			= p2020_rdb_probe,
-	.setup_arch		= mpc85xx_rdb_setup_arch,
-	.init_IRQ		= mpc85xx_rdb_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
-#endif
-	.get_irq		= mpic_get_irq,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-};
-
 define_machine(p1020_rdb) {
 	.name			= "P1020 RDB",
 	.probe			= p1020_rdb_probe,
@@ -207,20 +177,6 @@ define_machine(p1021_rdb_pc) {
 	.progress		= udbg_progress,
 };
 
-define_machine(p2020_rdb_pc) {
-	.name			= "P2020RDB-PC",
-	.probe			= p2020_rdb_pc_probe,
-	.setup_arch		= mpc85xx_rdb_setup_arch,
-	.init_IRQ		= mpc85xx_rdb_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
-#endif
-	.get_irq		= mpic_get_irq,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-};
-
 define_machine(p1025_rdb) {
 	.name			= "P1025 RDB",
 	.probe			= p1025_rdb_probe,
diff --git a/arch/powerpc/platforms/85xx/p2020.c b/arch/powerpc/platforms/85xx/p2020.c
index 2dfd150c6375..1b0def607749 100644
--- a/arch/powerpc/platforms/85xx/p2020.c
+++ b/arch/powerpc/platforms/85xx/p2020.c
@@ -34,16 +34,42 @@
 
 #include "mpc85xx.h"
 
+#ifdef CONFIG_MPC85xx_DS
 machine_arch_initcall(p2020_ds, mpc85xx_common_publish_devices);
+#endif /* CONFIG_MPC85xx_DS */
+
+#ifdef CONFIG_MPC85xx_RDB
+machine_arch_initcall(p2020_rdb, mpc85xx_common_publish_devices);
+machine_arch_initcall(p2020_rdb_pc, mpc85xx_common_publish_devices);
+#endif /* CONFIG_MPC85xx_RDB */
 
 /*
  * Called very early, device-tree isn't unflattened
  */
+#ifdef CONFIG_MPC85xx_DS
 static int __init p2020_ds_probe(void)
 {
 	return !!of_machine_is_compatible("fsl,P2020DS");
 }
+#endif /* CONFIG_MPC85xx_DS */
+
+#ifdef CONFIG_MPC85xx_RDB
+static int __init p2020_rdb_probe(void)
+{
+	if (of_machine_is_compatible("fsl,P2020RDB"))
+		return 1;
+	return 0;
+}
+
+static int __init p2020_rdb_pc_probe(void)
+{
+	if (of_machine_is_compatible("fsl,P2020RDB-PC"))
+		return 1;
+	return 0;
+}
+#endif /* CONFIG_MPC85xx_RDB */
 
+#ifdef CONFIG_MPC85xx_DS
 define_machine(p2020_ds) {
 	.name			= "P2020 DS",
 	.probe			= p2020_ds_probe,
@@ -57,3 +83,34 @@ define_machine(p2020_ds) {
 	.calibrate_decr		= generic_calibrate_decr,
 	.progress		= udbg_progress,
 };
+#endif /* CONFIG_MPC85xx_DS */
+
+#ifdef CONFIG_MPC85xx_RDB
+define_machine(p2020_rdb) {
+	.name			= "P2020 RDB",
+	.probe			= p2020_rdb_probe,
+	.setup_arch		= mpc85xx_rdb_setup_arch,
+	.init_IRQ		= mpc85xx_rdb_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
+#endif
+	.get_irq		= mpic_get_irq,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};
+
+define_machine(p2020_rdb_pc) {
+	.name			= "P2020RDB-PC",
+	.probe			= p2020_rdb_pc_probe,
+	.setup_arch		= mpc85xx_rdb_setup_arch,
+	.init_IRQ		= mpc85xx_rdb_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
+#endif
+	.get_irq		= mpic_get_irq,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};
+#endif /* CONFIG_MPC85xx_RDB */
