diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index 9fc9aed..9774fc6 100644
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -455,6 +455,11 @@
 	 */
 	mmc->max_blk_size = 1023;
 
+	/*
+	 * Block count register is 16 bits.
+	 */
+	mmc->max_blk_count = 65535;
+
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
 	host->dma = -1;