diff --git a/arch/sh/boards/se/7206/setup.c b/arch/sh/boards/se/7206/setup.c
index 499a3e9dbfc2eb1d421e750d8d16a296b4acbd22..5b3ee089d91de3acc943cc3ef142dac056072b60 100644
--- a/arch/sh/boards/se/7206/setup.c
+++ b/arch/sh/boards/se/7206/setup.c
@@ -39,6 +39,7 @@ 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	= 32,
 };
 
 static struct resource heartbeat_resources[] = {