3.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Wahren <stefan.wahren@xxxxxxxx>
[ Upstream commit 84fe61821e4ebab6322eeae3f3c27f77f0031978 ]
If the Freescale fec is in promiscuous mode and network cable is
reconnected then the promiscuous mode get lost. The problem is caused
by a too soon call of set_multicast_list to re-enable promisc mode.
The FEC_R_CNTRL register changes are overwritten by fec_restart.
This patch fixes this by moving the call behind the init of FEC_R_CNTRL
register in fec_restart.
Successful tested on a i.MX28 board.
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/freescale/fec_main.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -528,13 +528,6 @@ fec_restart(struct net_device *ndev, int
/* Clear any outstanding interrupt. */
writel(0xffc00000, fep->hwp + FEC_IEVENT);
- /* Setup multicast filter. */
- set_multicast_list(ndev);
-#ifndef CONFIG_M5272
- writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
- writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
-#endif
-
/* Set maximum receive buffer size. */
writel(PKT_MAXBLR_SIZE, fep->hwp + FEC_R_BUFF_SIZE);
@@ -655,6 +648,13 @@ fec_restart(struct net_device *ndev, int
writel(rcntl, fep->hwp + FEC_R_CNTRL);
+ /* Setup multicast filter. */
+ set_multicast_list(ndev);
+#ifndef CONFIG_M5272
+ writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
+ writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
+#endif
+
if (id_entry->driver_data & FEC_QUIRK_ENET_MAC) {
/* enable ENET endian swap */
ecntl |= (1 << 8);
--
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