diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 17a59cde826e535edd36748479ce849a148d8538..0e4a820bcbe8396d3d195787b5d5f66d6c7d7d58 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -20,6 +20,7 @@ config ARCH_SH73A0
 
 config ARCH_R8A73A4
 	bool "R-Mobile APE6 (R8A73A40)"
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_GIC
 	select CPU_V7
 	select ARM_ARCH_TIMER
diff --git a/arch/arm/mach-shmobile/include/mach/r8a73a4.h b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
index 6db3495479d8adb2883cc72e4e07fca201aa3743..f043103e32c98e897b00bc3db489fcda444f34c8 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a73a4.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
@@ -3,5 +3,6 @@
 
 void r8a73a4_add_standard_devices(void);
 void r8a73a4_clock_init(void);
+void r8a73a4_pinmux_init(void);
 
 #endif /* __ASM_R8A73A4_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c
index da5ae16115187bc1cbe7924d5bfc46808c74c8f2..c2d86f30cde4d2d356a1a1a6a9a2d46cf299992c 100644
--- a/arch/arm/mach-shmobile/setup-r8a73a4.c
+++ b/arch/arm/mach-shmobile/setup-r8a73a4.c
@@ -28,6 +28,16 @@
 #include <mach/r8a73a4.h>
 #include <asm/mach/arch.h>
 
+static const struct resource pfc_resources[] = {
+	DEFINE_RES_MEM(0xe6050000, 0x9000),
+};
+
+void __init r8a73a4_pinmux_init(void)
+{
+	platform_device_register_simple("pfc-r8a73a4", -1, pfc_resources,
+					ARRAY_SIZE(pfc_resources));
+}
+
 #define SCIF_COMMON(scif_type, baseaddr, irq)			\
 	.type		= scif_type,				\
 	.mapbase	= baseaddr,				\