[PATCH 1/1] Blackfin EMAC driver: Fix Ethernet communication bug (dupliated and lost packets)

[Bryan Wu <bryan.wu@analog.com>]

From: Michael Hennerich <michael.hennerich@analog.com>

Fix Ethernet communication bug(dupliated and lost packets)
in RMII PHY mode- dont call mac_disable and mac_enable during
10/100 REFCLK changes - mac_enable screws up the DMA descriptor chain

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
 drivers/net/bfin_mac.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index 53fe7de..084acfd 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -371,7 +371,6 @@ static void bf537_adjust_link(struct net_device *dev)
 		if (phydev->speed != lp->old_speed) {
 #if defined(CONFIG_BFIN_MAC_RMII)
 			u32 opmode = bfin_read_EMAC_OPMODE();
-			bf537mac_disable();
 			switch (phydev->speed) {
 			case 10:
 				opmode |= RMII_10;
@@ -386,7 +385,6 @@ static void bf537_adjust_link(struct net_device *dev)
 				break;
 			}
 			bfin_write_EMAC_OPMODE(opmode);
-			bf537mac_enable();
 #endif
 
 			new_state = 1;
-- 
1.5.3.4
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/