powerpc: Move 32-bit probe() machine to later in the boot process

This converts all the 32-bit platforms to use the expanded device-tree
which is a pretty mechanical change. Unlike 64-bit, the 32-bit kernel
didn't rely on platform initializations to setup the MMU since it
sets it up entirely before probe_machine() so the move has comparatively
less consequences though it's a bigger patch.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

25 files changed, 42 insertions, 119 deletions

diff --git a/arch/powerpc/platforms/85xx/bsc913x_qds.c b/arch/powerpc/platforms/85xx/bsc913x_qds.c
index dcfafd6b91ee..07dd6ae3ec52 100644
--- a/arch/powerpc/platforms/85xx/bsc913x_qds.c
+++ b/arch/powerpc/platforms/85xx/bsc913x_qds.c
@@ -60,9 +60,7 @@ machine_arch_initcall(bsc9132_qds, mpc85xx_common_publish_devices);
 
 static int __init bsc9132_qds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,bsc9132qds");
+	return of_machine_is_compatible("fsl,bsc9132qds");
 }
 
 define_machine(bsc9132_qds) {
diff --git a/arch/powerpc/platforms/85xx/bsc913x_rdb.c b/arch/powerpc/platforms/85xx/bsc913x_rdb.c
index 9d57bedb940c..e48f6710e6d5 100644
--- a/arch/powerpc/platforms/85xx/bsc913x_rdb.c
+++ b/arch/powerpc/platforms/85xx/bsc913x_rdb.c
@@ -50,9 +50,7 @@ machine_device_initcall(bsc9131_rdb, mpc85xx_common_publish_devices);
 
 static int __init bsc9131_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,bsc9131rdb");
+	return of_machine_is_compatible("fsl,bsc9131rdb");
 }
 
 define_machine(bsc9131_rdb) {
diff --git a/arch/powerpc/platforms/85xx/c293pcie.c b/arch/powerpc/platforms/85xx/c293pcie.c
index 61bc851e9a8e..3b9e3f0f9aec 100644
--- a/arch/powerpc/platforms/85xx/c293pcie.c
+++ b/arch/powerpc/platforms/85xx/c293pcie.c
@@ -54,9 +54,7 @@ machine_arch_initcall(c293_pcie, mpc85xx_common_publish_devices);
  */
 static int __init c293_pcie_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "fsl,C293PCIE"))
+	if (of_machine_is_compatible("fsl,C293PCIE"))
 		return 1;
 	return 0;
 }
diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c
index a2b0bc859de0..3a6a84f07f43 100644
--- a/arch/powerpc/platforms/85xx/corenet_generic.c
+++ b/arch/powerpc/platforms/85xx/corenet_generic.c
@@ -170,20 +170,19 @@ static const char * const boards[] __initconst = {
  */
 static int __init corenet_generic_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
 	char hv_compat[24];
 	int i;
 #ifdef CONFIG_SMP
 	extern struct smp_ops_t smp_85xx_ops;
 #endif
 
-	if (of_flat_dt_match(root, boards))
+	if (of_device_compatible_match(of_root, boards))
 		return 1;
 
 	/* Check if we're running under the Freescale hypervisor */
 	for (i = 0; boards[i]; i++) {
 		snprintf(hv_compat, sizeof(hv_compat), "%s-hv", boards[i]);
-		if (of_flat_dt_is_compatible(root, hv_compat)) {
+		if (of_machine_is_compatible(hv_compat)) {
 			ppc_md.init_IRQ = ehv_pic_init;
 
 			ppc_md.get_irq = ehv_pic_get_irq;
diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c b/arch/powerpc/platforms/85xx/ge_imp3a.c
index 55eefef0c0c7..14af36a7fa9c 100644
--- a/arch/powerpc/platforms/85xx/ge_imp3a.c
+++ b/arch/powerpc/platforms/85xx/ge_imp3a.c
@@ -197,9 +197,7 @@ static void ge_imp3a_show_cpuinfo(struct seq_file *m)
  */
 static int __init ge_imp3a_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "ge,IMP3A");
+	return of_machine_is_compatible("ge,IMP3A");
 }
 
 machine_arch_initcall(ge_imp3a, mpc85xx_common_publish_devices);
diff --git a/arch/powerpc/platforms/85xx/ksi8560.c b/arch/powerpc/platforms/85xx/ksi8560.c
index 867a1078b488..6ef8580fdc0e 100644
--- a/arch/powerpc/platforms/85xx/ksi8560.c
+++ b/arch/powerpc/platforms/85xx/ksi8560.c
@@ -176,9 +176,7 @@ machine_device_initcall(ksi8560, mpc85xx_common_publish_devices);
  */
 static int __init ksi8560_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "emerson,KSI8560");
+	return of_machine_is_compatible("emerson,KSI8560");
 }
 
 define_machine(ksi8560) {
diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c
index a378ba3519e9..6ba687f19e45 100644
--- a/arch/powerpc/platforms/85xx/mpc8536_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c
@@ -64,9 +64,7 @@ machine_arch_initcall(mpc8536_ds, swiotlb_setup_bus_notifier);
  */
 static int __init mpc8536_ds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,mpc8536ds");
+	return of_machine_is_compatible("fsl,mpc8536ds");
 }
 
 define_machine(mpc8536_ds) {
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index de72a5f464b1..8756715c7a47 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -160,9 +160,7 @@ machine_arch_initcall(mpc85xx_ads, mpc85xx_common_publish_devices);
  */
 static int __init mpc85xx_ads_probe(void)
 {
-        unsigned long root = of_get_flat_dt_root();
-
-        return of_flat_dt_is_compatible(root, "MPC85xxADS");
+	return of_machine_is_compatible("MPC85xxADS");
 }
 
 define_machine(mpc85xx_ads) {
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 5e0a0a24d5ce..62f171c71c4c 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -367,9 +367,7 @@ static void mpc85xx_cds_show_cpuinfo(struct seq_file *m)
  */
 static int __init mpc85xx_cds_probe(void)
 {
-        unsigned long root = of_get_flat_dt_root();
-
-        return of_flat_dt_is_compatible(root, "MPC85xxCDS");
+	return of_machine_is_compatible("MPC85xxCDS");
 }
 
 machine_arch_initcall(mpc85xx_cds, mpc85xx_common_publish_devices);
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 64a7e8c16839..6bc07d837b1c 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -167,9 +167,7 @@ static void __init mpc85xx_ds_setup_arch(void)
  */
 static int __init mpc8544_ds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return !!of_flat_dt_is_compatible(root, "MPC8544DS");
+	return !!of_machine_is_compatible("MPC8544DS");
 }
 
 machine_arch_initcall(mpc8544_ds, mpc85xx_common_publish_devices);
@@ -185,9 +183,7 @@ machine_arch_initcall(p2020_ds, swiotlb_setup_bus_notifier);
  */
 static int __init mpc8572_ds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return !!of_flat_dt_is_compatible(root, "fsl,MPC8572DS");
+	return !!of_machine_is_compatible("fsl,MPC8572DS");
 }
 
 /*
@@ -195,9 +191,7 @@ static int __init mpc8572_ds_probe(void)
  */
 static int __init p2020_ds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return !!of_flat_dt_is_compatible(root, "fsl,P2020DS");
+	return !!of_machine_is_compatible("fsl,P2020DS");
 }
 
 define_machine(mpc8544_ds) {
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index f61cbe235581..fa9cd710d2ae 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -376,9 +376,7 @@ static void __init mpc85xx_mds_pic_init(void)
 
 static int __init mpc85xx_mds_probe(void)
 {
-        unsigned long root = of_get_flat_dt_root();
-
-        return of_flat_dt_is_compatible(root, "MPC85xxMDS");
+	return of_machine_is_compatible("MPC85xxMDS");
 }
 
 define_machine(mpc8568_mds) {
@@ -398,9 +396,7 @@ define_machine(mpc8568_mds) {
 
 static int __init mpc8569_mds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,MPC8569EMDS");
+	return of_machine_is_compatible("fsl,MPC8569EMDS");
 }
 
 define_machine(mpc8569_mds) {
@@ -420,9 +416,7 @@ define_machine(mpc8569_mds) {
 
 static int __init p1021_mds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1021MDS");
+	return of_machine_is_compatible("fsl,P1021MDS");
 
 }
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
index 761e504d22ef..c1499cbf3786 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c
@@ -147,80 +147,60 @@ machine_arch_initcall(p1024_rdb, mpc85xx_common_publish_devices);
  */
 static int __init p2020_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "fsl,P2020RDB"))
+	if (of_machine_is_compatible("fsl,P2020RDB"))
 		return 1;
 	return 0;
 }
 
 static int __init p1020_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "fsl,P1020RDB"))
+	if (of_machine_is_compatible("fsl,P1020RDB"))
 		return 1;
 	return 0;
 }
 
 static int __init p1020_rdb_pc_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1020RDB-PC");
+	return of_machine_is_compatible("fsl,P1020RDB-PC");
 }
 
 static int __init p1020_rdb_pd_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1020RDB-PD");
+	return of_machine_is_compatible("fsl,P1020RDB-PD");
 }
 
 static int __init p1021_rdb_pc_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "fsl,P1021RDB-PC"))
+	if (of_machine_is_compatible("fsl,P1021RDB-PC"))
 		return 1;
 	return 0;
 }
 
 static int __init p2020_rdb_pc_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "fsl,P2020RDB-PC"))
+	if (of_machine_is_compatible("fsl,P2020RDB-PC"))
 		return 1;
 	return 0;
 }
 
 static int __init p1025_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1025RDB");
+	return of_machine_is_compatible("fsl,P1025RDB");
 }
 
 static int __init p1020_mbg_pc_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1020MBG-PC");
+	return of_machine_is_compatible("fsl,P1020MBG-PC");
 }
 
 static int __init p1020_utm_pc_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1020UTM-PC");
+	return of_machine_is_compatible("fsl,P1020UTM-PC");
 }
 
 static int __init p1024_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1024RDB");
+	return of_machine_is_compatible("fsl,P1024RDB");
 }
 
 define_machine(p2020_rdb) {
diff --git a/arch/powerpc/platforms/85xx/mvme2500.c b/arch/powerpc/platforms/85xx/mvme2500.c
index 1233050560ae..acc3d0d6049d 100644
--- a/arch/powerpc/platforms/85xx/mvme2500.c
+++ b/arch/powerpc/platforms/85xx/mvme2500.c
@@ -53,9 +53,7 @@ machine_arch_initcall(mvme2500, mpc85xx_common_publish_devices);
  */
 static int __init mvme2500_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "artesyn,MVME2500");
+	return of_machine_is_compatible("artesyn,MVME2500");
 }
 
 define_machine(mvme2500) {
diff --git a/arch/powerpc/platforms/85xx/p1010rdb.c b/arch/powerpc/platforms/85xx/p1010rdb.c
index ad1a3d438a9e..661d7b59e413 100644
--- a/arch/powerpc/platforms/85xx/p1010rdb.c
+++ b/arch/powerpc/platforms/85xx/p1010rdb.c
@@ -62,11 +62,9 @@ machine_arch_initcall(p1010_rdb, swiotlb_setup_bus_notifier);
  */
 static int __init p1010_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "fsl,P1010RDB"))
+	if (of_machine_is_compatible("fsl,P1010RDB"))
 		return 1;
-	if (of_flat_dt_is_compatible(root, "fsl,P1010RDB-PB"))
+	if (of_machine_is_compatible("fsl,P1010RDB-PB"))
 		return 1;
 	return 0;
 }
diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c
index 371df822e88e..63568d68c76f 100644
--- a/arch/powerpc/platforms/85xx/p1022_ds.c
+++ b/arch/powerpc/platforms/85xx/p1022_ds.c
@@ -555,9 +555,7 @@ machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier);
  */
 static int __init p1022_ds_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,p1022ds");
+	return of_machine_is_compatible("fsl,p1022ds");
 }
 
 define_machine(p1022_ds) {
diff --git a/arch/powerpc/platforms/85xx/p1022_rdk.c b/arch/powerpc/platforms/85xx/p1022_rdk.c
index 5087becaa8bc..2f2943600301 100644
--- a/arch/powerpc/platforms/85xx/p1022_rdk.c
+++ b/arch/powerpc/platforms/85xx/p1022_rdk.c
@@ -135,9 +135,7 @@ machine_arch_initcall(p1022_rdk, swiotlb_setup_bus_notifier);
  */
 static int __init p1022_rdk_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,p1022rdk");
+	return of_machine_is_compatible("fsl,p1022rdk");
 }
 
 define_machine(p1022_rdk) {
diff --git a/arch/powerpc/platforms/85xx/p1023_rdb.c b/arch/powerpc/platforms/85xx/p1023_rdb.c
index d5b7509825de..40d8de57c341 100644
--- a/arch/powerpc/platforms/85xx/p1023_rdb.c
+++ b/arch/powerpc/platforms/85xx/p1023_rdb.c
@@ -100,9 +100,7 @@ static void __init mpc85xx_rdb_pic_init(void)
 
 static int __init p1023_rdb_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,P1023RDB");
+	return of_machine_is_compatible("fsl,P1023RDB");
 
 }
 
diff --git a/arch/powerpc/platforms/85xx/ppa8548.c b/arch/powerpc/platforms/85xx/ppa8548.c
index 12019f17f297..2410167b290a 100644
--- a/arch/powerpc/platforms/85xx/ppa8548.c
+++ b/arch/powerpc/platforms/85xx/ppa8548.c
@@ -81,9 +81,7 @@ machine_device_initcall(ppa8548, declare_of_platform_devices);
  */
 static int __init ppa8548_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "ppa8548");
+	return of_machine_is_compatible("ppa8548");
 }
 
 define_machine(ppa8548) {
diff --git a/arch/powerpc/platforms/85xx/qemu_e500.c b/arch/powerpc/platforms/85xx/qemu_e500.c
index 8ad2fe6f200a..50d745809809 100644
--- a/arch/powerpc/platforms/85xx/qemu_e500.c
+++ b/arch/powerpc/platforms/85xx/qemu_e500.c
@@ -62,9 +62,7 @@ static void __init qemu_e500_setup_arch(void)
  */
 static int __init qemu_e500_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return !!of_flat_dt_is_compatible(root, "fsl,qemu-e500");
+	return !!of_machine_is_compatible("fsl,qemu-e500");
 }
 
 machine_arch_initcall(qemu_e500, mpc85xx_common_publish_devices);
diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c
index b07214666d65..62b6c45a5a9b 100644
--- a/arch/powerpc/platforms/85xx/sbc8548.c
+++ b/arch/powerpc/platforms/85xx/sbc8548.c
@@ -120,9 +120,7 @@ machine_arch_initcall(sbc8548, mpc85xx_common_publish_devices);
  */
 static int __init sbc8548_probe(void)
 {
-        unsigned long root = of_get_flat_dt_root();
-
-        return of_flat_dt_is_compatible(root, "SBC8548");
+	return of_machine_is_compatible("SBC8548");
 }
 
 define_machine(sbc8548) {
diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c
index ae368e0e1076..cd255acde2e2 100644
--- a/arch/powerpc/platforms/85xx/socrates.c
+++ b/arch/powerpc/platforms/85xx/socrates.c
@@ -79,9 +79,7 @@ machine_arch_initcall(socrates, mpc85xx_common_publish_devices);
  */
 static int __init socrates_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	if (of_flat_dt_is_compatible(root, "abb,socrates"))
+	if (of_machine_is_compatible("abb,socrates"))
 		return 1;
 
 	return 0;
diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c
index 6f4939b6309e..91b824c4dc08 100644
--- a/arch/powerpc/platforms/85xx/stx_gp3.c
+++ b/arch/powerpc/platforms/85xx/stx_gp3.c
@@ -93,9 +93,7 @@ machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices);
  */
 static int __init stx_gp3_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "stx,gp3-8560");
+	return of_machine_is_compatible("stx,gp3-8560");
 }
 
 define_machine(stx_gp3) {
diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c
index ec0b7272fae2..b7c54454d611 100644
--- a/arch/powerpc/platforms/85xx/tqm85xx.c
+++ b/arch/powerpc/platforms/85xx/tqm85xx.c
@@ -122,7 +122,7 @@ static const char * const board[] __initconst = {
  */
 static int __init tqm85xx_probe(void)
 {
-	return of_flat_dt_match(of_get_flat_dt_root(), board);
+	return of_device_compatible_match(of_root, board);
 }
 
 define_machine(tqm85xx) {
diff --git a/arch/powerpc/platforms/85xx/twr_p102x.c b/arch/powerpc/platforms/85xx/twr_p102x.c
index 71bc255b4324..1bc02a87f597 100644
--- a/arch/powerpc/platforms/85xx/twr_p102x.c
+++ b/arch/powerpc/platforms/85xx/twr_p102x.c
@@ -128,9 +128,7 @@ machine_arch_initcall(twr_p1025, mpc85xx_common_publish_devices);
 
 static int __init twr_p1025_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "fsl,TWR-P1025");
+	return of_machine_is_compatible("fsl,TWR-P1025");
 }
 
 define_machine(twr_p1025) {
diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
index 1a9c1085855f..cf0c70ff026e 100644
--- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c
+++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c
@@ -144,23 +144,17 @@ machine_arch_initcall(xes_mpc8540, mpc85xx_common_publish_devices);
  */
 static int __init xes_mpc8572_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "xes,MPC8572");
+	return of_machine_is_compatible("xes,MPC8572");
 }
 
 static int __init xes_mpc8548_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "xes,MPC8548");
+	return of_machine_is_compatible("xes,MPC8548");
 }
 
 static int __init xes_mpc8540_probe(void)
 {
-	unsigned long root = of_get_flat_dt_root();
-
-	return of_flat_dt_is_compatible(root, "xes,MPC8540");
+	return of_machine_is_compatible("xes,MPC8540");
 }
 
 define_machine(xes_mpc8572) {