1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-sh/cpu-sh4/rtc.h b/include/asm-sh/cpu-sh4/rtc.h
index f3d0f53275e4..25b1e6adfe8c 100644
--- a/include/asm-sh/cpu-sh4/rtc.h
+++ b/include/asm-sh/cpu-sh4/rtc.h
@@ -1,7 +1,12 @@
 #ifndef __ASM_SH_CPU_SH4_RTC_H
 #define __ASM_SH_CPU_SH4_RTC_H
 
+#ifdef CONFIG_CPU_SUBTYPE_SH7723
+#define rtc_reg_size            sizeof(u16)
+#else
 #define rtc_reg_size            sizeof(u32)
+#endif
+
 #define RTC_BIT_INVERTED        0x40    /* bug on SH7750, SH7750S */
 #define RTC_DEF_CAPABILITIES    RTC_CAP_4_DIGIT_YEAR