diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index fdd7eaa0b8ed..ff2759616873 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -125,7 +125,7 @@ enum bcm63xx_regs_spi {
 	SPI_MSG_DATA_SIZE,
 };
 
-#define BCM63XX_SPI_MAX_PREPEND		15
+#define BCM63XX_SPI_MAX_PREPEND		7
 
 #define BCM63XX_SPI_MAX_CS		8
 #define BCM63XX_SPI_BUS_NUM		0