[PATCH 1/4] spi: zynq_qspi: Typecast rxbuf properly

[Ashok Reddy Soma]

From: Siva Durga Prasad Paladugu <siva.durga.palad...@xilinx.com>

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

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.palad...@xilinx.com>
Signed-off-by: Michal Simek <michal.si...@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.s...@xilinx.com>
---

 drivers/spi/zynq_qspi.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/zynq_qspi.c b/drivers/spi/zynq_qspi.c
index cf6da5340a..34d39d66fb 100644
--- a/drivers/spi/zynq_qspi.c
+++ b/drivers/spi/zynq_qspi.c
@@ -230,12 +230,16 @@ static void zynq_qspi_read_data(struct zynq_qspi_priv 
*priv, u32 data, u8 size)
                        priv->rx_buf += 1;
                        break;
                case 2:
-                       *((u16 *)priv->rx_buf) = data;
-                       priv->rx_buf += 2;
+                       *((u8 *)priv->rx_buf) = data;
+                       priv->rx_buf += 1;
+                       *((u8 *)priv->rx_buf) = (u8)(data >> 8);
+                       priv->rx_buf += 1;
                        break;
                case 3:
-                       *((u16 *)priv->rx_buf) = data;
-                       priv->rx_buf += 2;
+                       *((u8 *)priv->rx_buf) = data;
+                       priv->rx_buf += 1;
+                       *((u8 *)priv->rx_buf) = (u8)(data >> 8);
+                       priv->rx_buf += 1;
                        byte3 = (u8)(data >> 16);
                        *((u8 *)priv->rx_buf) = byte3;
                        priv->rx_buf += 1;
-- 
2.17.1