diff --git a/drivers/spi/atcspi200_spi.c b/drivers/spi/atcspi200_spi.c
index 2c1d36ee67..6233d4978f 100644
--- a/drivers/spi/atcspi200_spi.c
+++ b/drivers/spi/atcspi200_spi.c
@@ -229,8 +229,10 @@ static int __atcspi200_spi_xfer(struct nds_spi_slave *ns,
 			__atcspi200_spi_start(ns);
 			break;
 		}
-		debug("spi_xfer: data_out %08X(%p) data_in %08X(%p) data_len %u\n",
-		      *(uint *)data_out, data_out, *(uint *)data_in, data_in, data_len);
+		if (data_out)
+			debug("spi_xfer: data_out %08X(%p) data_in %08X(%p) data_len %u\n",
+			      *(uint *)data_out, data_out, *(uint *)data_in,
+			      data_in, data_len);
 		num_chunks = DIV_ROUND_UP(data_len, max_tran_len);
 		din = data_in;
 		dout = data_out;