[U-Boot] [PATCH v2] drivers: net: cpsw: always flush cache of size PKTSIZE_ALIGN

[Lokesh Vutla]

cpsw tries to flush dcache which is not in the range of PKTSIZE.
Because of this the following warning comes while flushing:

CACHE: Misaligned operation at range [dffecec0, dffed016]

Fix it by flushing cache of size PKTSIZE_ALIGN as similar to what is
being done in _cpsw_recv.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
Changes since v1:
- Use PKTALIGN instead of cache line size
- Need not align start of packet buffer from the network subsystem.

 drivers/net/cpsw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
index 2ce4ec6..8ce5716 100644
--- a/drivers/net/cpsw.c
+++ b/drivers/net/cpsw.c
@@ -907,7 +907,7 @@ static int _cpsw_send(struct cpsw_priv *priv, void *packet, int length)
 	int timeout = CPDMA_TIMEOUT;
 
 	flush_dcache_range((unsigned long)packet,
-			   (unsigned long)packet + length);
+			   (unsigned long)packet + PKTSIZE_ALIGN);
 
 	/* first reap completed packets */
 	while (timeout-- &&
-- 
2.9.2