diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index f57eeea4bc16..4e1f862dd688 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -104,7 +104,6 @@ obj-$(CONFIG_PCSPKR_PLATFORM)	+= pcspeaker.o
 obj-$(CONFIG_OLPC)		+= olpc.o
 obj-$(CONFIG_OLPC_XO1)		+= olpc-xo1.o
 obj-$(CONFIG_OLPC_OPENFIRMWARE)	+= olpc_ofw.o
-obj-$(CONFIG_X86_MRST)		+= mrst.o
 
 microcode-y				:= microcode_core.o
 microcode-$(CONFIG_MICROCODE_INTEL)	+= microcode_intel.o
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 1191989e9f00..06761ed53747 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -1,5 +1,6 @@
 # Platform specific code goes here
 obj-y	+= efi/
+obj-y	+= mrst/
 obj-y	+= scx200/
 obj-y	+= sfi/
 obj-y	+= visws/
diff --git a/arch/x86/platform/mrst/Makefile b/arch/x86/platform/mrst/Makefile
new file mode 100644
index 000000000000..efbbc552fa95
--- /dev/null
+++ b/arch/x86/platform/mrst/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_X86_MRST)		+= mrst.o
diff --git a/arch/x86/kernel/mrst.c b/arch/x86/platform/mrst/mrst.c
similarity index 100%
rename from arch/x86/kernel/mrst.c
rename to arch/x86/platform/mrst/mrst.c