2 files changed, 4 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 7474502dace5..cd870a823d18 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -290,7 +290,8 @@ void __init setup_arch(char **cmdline_p)
         conswitchp = &dummy_con;
 #endif
 
-        ppc_md.setup_arch();
+        if (ppc_md.setup_arch)
+                ppc_md.setup_arch();
         if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab);
 
         paging_init();
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 3089eaed3256..008ab6823b02 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -530,7 +530,8 @@ void __init setup_arch(char **cmdline_p)
         conswitchp = &dummy_con;
 #endif
 
-        ppc_md.setup_arch();
+        if (ppc_md.setup_arch)
+                ppc_md.setup_arch();
 
         paging_init();
         ppc64_boot_msg(0x15, "Setup Done");