diff --git a/arch/sh/boards/se/73180/setup.c b/arch/sh/boards/se/73180/setup.c
index cddc7a2b858f..4daf53b1457f 100644
--- a/arch/sh/boards/se/73180/setup.c
+++ b/arch/sh/boards/se/73180/setup.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <asm/machvec.h>
 #include <asm/se73180.h>
+#include <asm/irq.h>
 
 void heartbeat_73180se(void);
 void init_73180se_IRQ(void);
@@ -50,6 +51,7 @@ struct sh_machine_vector mv_73180se __initmv = {
 	.mv_outsl = sh73180se_outsl,
 
 	.mv_init_irq = init_73180se_IRQ,
+	.mv_irq_demux = shmse_irq_demux,
 #ifdef CONFIG_HEARTBEAT
 	.mv_heartbeat = heartbeat_73180se,
 #endif
diff --git a/arch/sh/configs/se73180_defconfig b/arch/sh/configs/se73180_defconfig
index d217e44c89a6..fe19feb95ca9 100644
--- a/arch/sh/configs/se73180_defconfig
+++ b/arch/sh/configs/se73180_defconfig
@@ -78,6 +78,7 @@ CONFIG_SH_73180_SOLUTION_ENGINE=y
 # CONFIG_SH_SECUREEDGE5410 is not set
 # CONFIG_SH_HS7751RVOIP is not set
 # CONFIG_SH_RTS7751R2D is not set
+# CONFIG_SH_R7780RP is not set
 # CONFIG_SH_EDOSK7705 is not set
 # CONFIG_SH_SH4202_MICRODEV is not set
 # CONFIG_SH_UNKNOWN is not set
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index fb586b1cf8bb..9064dfc91e6d 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -20,7 +20,6 @@ config CPU_SH4
 config CPU_SH4A
 	bool
 	select CPU_SH4
-	select CPU_HAS_INTC2_IRQ
 
 config CPU_SUBTYPE_ST40
 	bool
@@ -144,6 +143,7 @@ config CPU_SUBTYPE_SH7770
 config CPU_SUBTYPE_SH7780
 	bool "Support SH7780 processor"
 	select CPU_SH4A
+	select CPU_HAS_INTC2_IRQ
 
 endmenu