diff --git a/include/linux/amlogic/sd.h b/include/linux/amlogic/sd.h
index 698ea06b..bdb62dc5 100644
--- a/include/linux/amlogic/sd.h
+++ b/include/linux/amlogic/sd.h
@@ -26,7 +26,6 @@
 
 #define	 AML_ERROR_RETRY_COUNTER		 10
 #define	 AML_TIMEOUT_RETRY_COUNTER	   2
-#define CALIBRATION
 #define AML_SDHC_MAGIC			 "amlsdhc"
 #define AML_SDIO_MAGIC			 "amlsdio"
 #define AML_SD_EMMC_MAGIC			 "amlsd_emmc"