diff options
| author | Lothar Waßmann <LW@KARO-electronics.de> | 2011-12-07 21:59:30 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-08 19:51:20 -0500 |
| commit | 42431dc24de343d62bb8fb885586de7f408919c8 (patch) | |
| tree | c78449f9d53863a1e23f2b44ccdad36e2e289112 /drivers | |
| parent | 589efdc7f7327bc8ddf597bdaf9de38fcea31744 (diff) | |
| download | linux-3.10-42431dc24de343d62bb8fb885586de7f408919c8.tar.gz linux-3.10-42431dc24de343d62bb8fb885586de7f408919c8.tar.bz2 linux-3.10-42431dc24de343d62bb8fb885586de7f408919c8.zip | |
net/fec: preserve MII/RMII setting in fec_stop()
Additionally to setting the ETHER_EN bit in FEC_ECNTRL the MII/RMII
setting in FEC_R_CNTRL needs to be preserved to keep the MII interface
functional.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c index 11534b9c6b3..ab0afb5961f 100644 --- a/drivers/net/ethernet/freescale/fec.c +++ b/drivers/net/ethernet/freescale/fec.c @@ -515,6 +515,7 @@ fec_stop(struct net_device *ndev) struct fec_enet_private *fep = netdev_priv(ndev); const struct platform_device_id *id_entry = platform_get_device_id(fep->pdev); + u32 rmii_mode = readl(fep->hwp + FEC_R_CNTRL) & (1 << 8); /* We cannot expect a graceful transmit stop without link !!! */ if (fep->link) { @@ -531,8 +532,10 @@ fec_stop(struct net_device *ndev) writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK); /* We have to keep ENET enabled to have MII interrupt stay working */ - if (id_entry->driver_data & FEC_QUIRK_ENET_MAC) + if (id_entry->driver_data & FEC_QUIRK_ENET_MAC) { writel(2, fep->hwp + FEC_ECNTRL); + writel(rmii_mode, fep->hwp + FEC_R_CNTRL); + } } |