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| author | Brandon Philips <brandon@ifup.org> | 2010-06-16 16:21:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-23 14:37:04 -0700 |
| commit | 38000a94a902e94ca8b5498f7871c6316de8957a (patch) | |
| tree | 3f749a720a341e8598017f5ab1f417d7a3625c87 /drivers/net/sky2.c | |
| parent | 6b2a541db58dba5860ccbcfaf36caee064b8a9fd (diff) | |
| download | linux-38000a94a902e94ca8b5498f7871c6316de8957a.tar.gz linux-38000a94a902e94ca8b5498f7871c6316de8957a.tar.bz2 linux-38000a94a902e94ca8b5498f7871c6316de8957a.zip | |
sky2: enable rx/tx in sky2_phy_reinit()
sky2_phy_reinit is called by the ethtool helpers sky2_set_settings,
sky2_nway_reset and sky2_set_pauseparam when netif_running.
However, at the end of sky2_phy_init GM_GP_CTRL has GM_GPCR_RX_ENA and
GM_GPCR_TX_ENA cleared. So, doing these commands causes the device to
stop working:
$ ethtool -r eth0
$ ethtool -A eth0 autoneg off
Fix this issue by enabling Rx/Tx after running sky2_phy_init in
sky2_phy_reinit.
Signed-off-by: Brandon Philips <bphilips@suse.de>
Tested-by: Brandon Philips <bphilips@suse.de>
Cc: stable@kernel.org
Tested-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sky2.c')
| -rw-r--r-- | drivers/net/sky2.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 2111c7bbf578..7985165e84fc 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -717,11 +717,24 @@ static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port) sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); } +/* Enable Rx/Tx */ +static void sky2_enable_rx_tx(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u16 reg; + + reg = gma_read16(hw, port, GM_GP_CTRL); + reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; + gma_write16(hw, port, GM_GP_CTRL, reg); +} + /* Force a renegotiation */ static void sky2_phy_reinit(struct sky2_port *sky2) { spin_lock_bh(&sky2->phy_lock); sky2_phy_init(sky2->hw, sky2->port); + sky2_enable_rx_tx(sky2); spin_unlock_bh(&sky2->phy_lock); } @@ -2040,7 +2053,6 @@ static void sky2_link_up(struct sky2_port *sky2) { struct sky2_hw *hw = sky2->hw; unsigned port = sky2->port; - u16 reg; static const char *fc_name[] = { [FC_NONE] = "none", [FC_TX] = "tx", @@ -2048,10 +2060,7 @@ static void sky2_link_up(struct sky2_port *sky2) [FC_BOTH] = "both", }; - /* enable Rx/Tx */ - reg = gma_read16(hw, port, GM_GP_CTRL); - reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; - gma_write16(hw, port, GM_GP_CTRL, reg); + sky2_enable_rx_tx(sky2); gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); |