diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index c658650af429..8abf1118ebbd 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -234,6 +234,10 @@ config HMT
 	  This option enables hardware multithreading on RS64 cpus.
 	  pSeries systems p620 and p660 have such a cpu type.
 
+config NUMA
+	bool "NUMA support"
+	default y if DISCONTIGMEM || SPARSEMEM
+
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 
@@ -249,9 +253,6 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
 
-config ARCH_FLATMEM_ENABLE
-	def_bool y
-
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
 	depends on ARCH_DISCONTIGMEM_ENABLE
@@ -274,10 +275,6 @@ config NODES_SPAN_OTHER_NODES
 	def_bool y
 	depends on NEED_MULTIPLE_NODES
 
-config NUMA
-	bool "NUMA support"
-	default y if DISCONTIGMEM || SPARSEMEM
-
 config SCHED_SMT
 	bool "SMT (Hyperthreading) scheduler support"
 	depends on SMP