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authorShravya Kumbham <shravya.kumbham@xilinx.com>2022-05-02 12:57:49 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-18 10:23:45 +0200
commit48f1dd67a83fb83130db4d3dee93cf2b7d7ec939 (patch)
tree372d42ef48870ad94ca2287d5cc4d9d7368dce01 /drivers
parent5c09dbdfd4fc786461b2fabf8160cb20d9e4c84f (diff)
net: emaclite: Don't advertise 1000BASE-T and do auto negotiation
[ Upstream commit b800528b97d0adc3a5ba42d78a8b0d3f07a31f44 ] In xemaclite_open() function we are setting the max speed of emaclite to 100Mb using phy_set_max_speed() function so, there is no need to write the advertising registers to stop giga-bit speed and the phy_start() function starts the auto-negotiation so, there is no need to handle it separately using advertising registers. Remove the phy_read and phy_write of advertising registers in xemaclite_open() function. Signed-off-by: Shravya Kumbham <shravya.kumbham@xilinx.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/xilinx/xilinx_emaclite.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index e29b5523b19b..f6ea4a0ad5df 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -932,8 +932,6 @@ static int xemaclite_open(struct net_device *dev)
xemaclite_disable_interrupts(lp);
if (lp->phy_node) {
- u32 bmcr;
-
lp->phy_dev = of_phy_connect(lp->ndev, lp->phy_node,
xemaclite_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
@@ -944,19 +942,6 @@ static int xemaclite_open(struct net_device *dev)
/* EmacLite doesn't support giga-bit speeds */
phy_set_max_speed(lp->phy_dev, SPEED_100);
-
- /* Don't advertise 1000BASE-T Full/Half duplex speeds */
- phy_write(lp->phy_dev, MII_CTRL1000, 0);
-
- /* Advertise only 10 and 100mbps full/half duplex speeds */
- phy_write(lp->phy_dev, MII_ADVERTISE, ADVERTISE_ALL |
- ADVERTISE_CSMA);
-
- /* Restart auto negotiation */
- bmcr = phy_read(lp->phy_dev, MII_BMCR);
- bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
- phy_write(lp->phy_dev, MII_BMCR, bmcr);
-
phy_start(lp->phy_dev);
}