spi: zynq_qspi: Typecast rxbuf properly

This patch typecasts and accesses rx buf properly as
an unaligned rxbuf, typecasting with u16 and accessing
it causes data abort excpetion and this patch fixes it.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/spi/zynq_qspi.c b/drivers/spi/zynq_qspi.c
index e81fe913f02f1d2224dc5a1d725cb5c1f04297fe..e49f405e41798aa66fbd1a3950db715726039655 100644 (file)
--- a/drivers/spi/zynq_qspi.c
+++ b/drivers/spi/zynq_qspi.c
@@ -419,12 +419,16 @@ static void zynq_qspi_copy_read_data(struct zynq_qspi_priv *priv, u32 data, u8 s
                        priv->rxbuf += 1;
                        break;
                case 2:
-                       *((u16 *)priv->rxbuf) = data;
-                       priv->rxbuf += 2;
+                       *((u8 *)priv->rxbuf) = data;
+                       priv->rxbuf += 1;
+                       *((u8 *)priv->rxbuf) = (u8)(data >> 8);
+                       priv->rxbuf += 1;
                        break;
                case 3:
-                       *((u16 *)priv->rxbuf) = data;
-                       priv->rxbuf += 2;
+                       *((u8 *)priv->rxbuf) = data;
+                       priv->rxbuf += 1;
+                       *((u8 *)priv->rxbuf) = (u8)(data >> 8);
+                       priv->rxbuf += 1;
                        byte3 = (u8)(data >> 16);
                        *((u8 *)priv->rxbuf) = byte3;
                        priv->rxbuf += 1;