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authorStefan Wahren <stefan.wahren@i2se.com>2014-03-12 11:28:19 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-04-14 06:47:20 -0700
commit20ffb64d6f8f4dc93952f90142107f31d4298161 (patch)
tree6ed691fb3f56982f7a28de2b2d5bd67285076006
parentc0384f5d2d6582891e3229dd857378a7ffd77d0f (diff)
eth: fec: Fix lost promiscuous mode after reconnecting cable
[ 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@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/ethernet/freescale/fec_main.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 50bb71c663e2..bf17c8863da8 100644
--- 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 duplex)
/* 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 duplex)
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);