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authorJoachim Foerster <joachim.foerster@missinglinkelectronics.com>2011-10-25 22:39:54 +0000
committerWolfgang Denk <wd@denx.de>2011-10-26 21:25:42 +0200
commit337aff53f63ef404bdc42472a6a82f9224cafed6 (patch)
tree2b64196888d2fd58d9a27ca99115cb027b75616b /drivers
parentf75dd584cdfe29dfdcfd424bb237b9238cfb8fe4 (diff)
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altera_tse: Clear SGDMA's RUN bit in async transfer, like in sync case
Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/altera_tse.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/altera_tse.c b/drivers/net/altera_tse.c
index 54a944b..47d0047 100644
--- a/drivers/net/altera_tse.c
+++ b/drivers/net/altera_tse.c
@@ -199,6 +199,12 @@ static int alt_sgdma_do_async_transfer(volatile struct alt_sgdma_registers *dev,
debug("Timeout waiting sgdma in do async!\n");
/*
+ * Clear the RUN bit in the control register. This is needed
+ * to restart the SGDMA engine later on.
+ */
+ dev->control = 0;
+
+ /*
* Clear any (previous) status register information
* that might occlude our error checking later.
*/