diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
index c6bfe72893d4..71d9c0f17e47 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -118,17 +118,6 @@ static void __init mpc832x_sys_setup_arch(void)
 	}
 
 #endif				/* CONFIG_QUICC_ENGINE */
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (initrd_start)
-		ROOT_DEV = Root_RAM0;
-	else
-#endif
-#ifdef  CONFIG_ROOT_NFS
-		ROOT_DEV = Root_NFS;
-#else
-		ROOT_DEV = Root_HDA1;
-#endif
 }
 
 static int __init mpc832x_declare_of_platform_devices(void)
diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c
index a8f66fb3391a..0a708efa1f56 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_itx.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c
@@ -71,12 +71,6 @@ static void __init mpc834x_itx_setup_arch(void)
 
 	ppc_md.pci_exclude_device = mpc83xx_exclude_device;
 #endif
-
-#ifdef  CONFIG_ROOT_NFS
-	ROOT_DEV = Root_NFS;
-#else
-	ROOT_DEV = Root_HDA1;
-#endif
 }
 
 static void __init mpc834x_itx_init_IRQ(void)
diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
index 9fd9adf8ff99..5a610485303b 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c
@@ -144,12 +144,6 @@ static void __init mpc834x_mds_setup_arch(void)
 #endif
 
 	mpc834x_usb_cfg();
-
-#ifdef  CONFIG_ROOT_NFS
-	ROOT_DEV = Root_NFS;
-#else
-	ROOT_DEV = Root_HDA1;
-#endif
 }
 
 static void __init mpc834x_mds_init_IRQ(void)
diff --git a/arch/powerpc/platforms/83xx/mpc8360e_pb.c b/arch/powerpc/platforms/83xx/mpc8360e_pb.c
index 76fcb5bdb759..e39e17f9b920 100644
--- a/arch/powerpc/platforms/83xx/mpc8360e_pb.c
+++ b/arch/powerpc/platforms/83xx/mpc8360e_pb.c
@@ -128,17 +128,6 @@ static void __init mpc8360_sys_setup_arch(void)
 	}
 
 #endif				/* CONFIG_QUICC_ENGINE */
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (initrd_start)
-		ROOT_DEV = Root_RAM0;
-	else
-#endif
-#ifdef  CONFIG_ROOT_NFS
-		ROOT_DEV = Root_NFS;
-#else
-		ROOT_DEV = Root_HDA1;
-#endif
 }
 
 static int __init mpc8360_declare_of_platform_devices(void)