diff --git a/arch/sh/boards/se/770x/setup.c b/arch/sh/boards/se/770x/setup.c
index d07a3368f5462d4253ac1d4b6ca6c5ce6cfbab6d..318bc8a3969c2d1d03fbbbb68a8b75225287302a 100644
--- a/arch/sh/boards/se/770x/setup.c
+++ b/arch/sh/boards/se/770x/setup.c
@@ -94,6 +94,7 @@ static unsigned char heartbeat_bit_pos[] = { 8, 9, 10, 11, 12, 13, 14, 15 };
 static struct heartbeat_data heartbeat_data = {
 	.bit_pos	= heartbeat_bit_pos,
 	.nr_bits	= ARRAY_SIZE(heartbeat_bit_pos),
+	.regsize	= 16,
 };
 
 static struct resource heartbeat_resources[] = {
diff --git a/arch/sh/boards/se/7722/setup.c b/arch/sh/boards/se/7722/setup.c
index 20f064083cc29179131a1b181a55249705c14887..eb97dca5b736c4fce596c74c55476ace350b3424 100644
--- a/arch/sh/boards/se/7722/setup.c
+++ b/arch/sh/boards/se/7722/setup.c
@@ -16,8 +16,13 @@
 #include <asm/machvec.h>
 #include <asm/se7722.h>
 #include <asm/io.h>
+#include <asm/heartbeat.h>
 
 /* Heartbeat */
+static struct heartbeat_data heartbeat_data = {
+	.regsize = 16,
+};
+
 static struct resource heartbeat_resources[] = {
 	[0] = {
 		.start  = PA_LED,
@@ -29,6 +34,9 @@ static struct resource heartbeat_resources[] = {
 static struct platform_device heartbeat_device = {
 	.name           = "heartbeat",
 	.id             = -1,
+	.dev = {
+		.platform_data = &heartbeat_data,
+	},
 	.num_resources  = ARRAY_SIZE(heartbeat_resources),
 	.resource       = heartbeat_resources,
 };
diff --git a/arch/sh/boards/se/7780/setup.c b/arch/sh/boards/se/7780/setup.c
index 76e53b26a808d4a8dc976acd87d7e6711c41951d..0f08ab3b2beca4ca26d6d348e114b23fd740a087 100644
--- a/arch/sh/boards/se/7780/setup.c
+++ b/arch/sh/boards/se/7780/setup.c
@@ -14,8 +14,13 @@
 #include <asm/machvec.h>
 #include <asm/se7780.h>
 #include <asm/io.h>
+#include <asm/heartbeat.h>
 
 /* Heartbeat */
+static struct heartbeat_data heartbeat_data = {
+	.regsize = 16,
+};
+
 static struct resource heartbeat_resources[] = {
 	[0] = {
 		.start  = PA_LED,
@@ -27,6 +32,9 @@ static struct resource heartbeat_resources[] = {
 static struct platform_device heartbeat_device = {
 	.name           = "heartbeat",
 	.id             = -1,
+	.dev = {
+		.platform_data = &heartbeat_data,
+	},
 	.num_resources  = ARRAY_SIZE(heartbeat_resources),
 	.resource       = heartbeat_resources,
 };