diff --git a/include/configs/at91sam9260ek.h b/include/configs/at91sam9260ek.h
index 784b9e5e63..1aa40efa3d 100644
--- a/include/configs/at91sam9260ek.h
+++ b/include/configs/at91sam9260ek.h
@@ -96,7 +96,7 @@
 #define CFG_MAX_DATAFLASH_BANKS		2
 #define CFG_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* CS0 */
 #define CFG_DATAFLASH_LOGIC_ADDR_CS1	0xD0000000	/* CS1 */
-#define AT91_SPI_CLK			33000000
+#define AT91_SPI_CLK			15000000
 #define DATAFLASH_TCSS			(0x1a << 16)
 #define DATAFLASH_TCHS			(0x1 << 24)