diff --git a/arch/arm/configs/kzm9g_defconfig b/arch/arm/configs/kzm9g_defconfig
index e3ebc20ed0a78a9a40ed76d44cfe907b01535ed3..686129f3a937d17f0e0c987cb4133a5e5a57c4e9 100644
--- a/arch/arm/configs/kzm9g_defconfig
+++ b/arch/arm/configs/kzm9g_defconfig
@@ -108,6 +108,7 @@ CONFIG_MMC_SH_MMCIF=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_RS5C372=y
 CONFIG_DMADEVICES=y
 CONFIG_SH_DMAE=y
 CONFIG_ASYNC_TX_DMA=y
diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index 7523e9e6d129400b35bcba078843093c59dcfa70..a5cb11358e008f8ac036e3fb4316a8f9c718baad 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -338,6 +338,9 @@ static struct pcf857x_platform_data pcf8575_pdata = {
 static struct i2c_board_info i2c0_devices[] = {
 	{
 		I2C_BOARD_INFO("ak4648", 0x12),
+	},
+	{
+		I2C_BOARD_INFO("r2025sd", 0x32),
 	}
 };