diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 2479f8e12faf5e407a72cb7ad6fc914cce7e8fab..b161dfadfec25dc7c7c2f9f85c944209ca4fe105 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -87,8 +87,6 @@
 #define CARD_OPT_WIDTH8		BIT(13)
 #define CARD_OPT_WIDTH		BIT(15)
 
-#define TMIO_BBS		512		/* Boot block size */
-
 /* Definitions for values the CTL_SDIO_STATUS register can take */
 #define TMIO_SDIO_STAT_IOIRQ	0x0001
 #define TMIO_SDIO_STAT_EXPUB52	0x4000