From: Fabio Estevam <fabio.este...@freescale.com>
Performing tftp transfers on mx28 results in random timeouts.
Hector Palacios and Robert Hodaszi analyzed the root cause being related to the
alignment of the 'buff' buffer inside fec_recv().
GCC versions such as 4.4/4.5 are more likely to exhibit such problem.
Use ALLOC_CACHE_ALIGN_BUFFER() for making the proper alignment of buffer.
Reported-by: Hector Palacios <hector.palac...@digi.com>
Tested-by: Oliver Metz <oli...@freetz.org>
Signed-off-by: Fabio Estevam <fabio.este...@freescale.com>
---
drivers/net/fec_mxc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 690e572..b423ff6 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -794,7 +794,7 @@ static int fec_recv(struct eth_device *dev)
uint16_t bd_status;
uint32_t addr, size, end;
int i;
- uchar buff[FEC_MAX_PKT_SIZE] __aligned(ARCH_DMA_MINALIGN);
+ ALLOC_CACHE_ALIGN_BUFFER(uchar, buff, FEC_MAX_PKT_SIZE);
/*
* Check if any critical events have happened
--
1.8.1.2
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