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

[Ashok Reddy Soma]

From: Siva Durga Prasad Paladugu <siva.durga.paladugu at 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.paladugu at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma at 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