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authorSiva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>2022-01-30 22:22:37 -0700
committerMichal Simek <michal.simek@xilinx.com>2022-02-04 13:20:10 +0100
commit255537b5adbdfa9eb0fe750c79ad089e7c0e3990 (patch)
tree50f76ba8d8eadd4d8c19f6b47a10017da1d00c9c /drivers/spi
parent25a91f300578d5905029d5f44799ef71a755ff02 (diff)
downloadu-boot-255537b5adbdfa9eb0fe750c79ad089e7c0e3990.tar.gz
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 exception and this patch fixes it. Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Link: https://lore.kernel.org/r/20220131052240.23403-2-ashok.reddy.soma@xilinx.com
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/zynq_qspi.c12
1 files 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;