Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-20 01:52:13 +00:00
Code Issues Packages Projects Releases Wiki Activity

Altera TSE: Add support for no PHY

Browse Source 
This patch avoids PHY and MDIO probing if no PHY chip is present.
This is the case mainly in optical links where there is no need for
PHY chip, and therefore no need of MDIO. In this scenario Ethernet
MAC is directly connected to an optical module through an external
SFP transceiver.

Signed-off-by: Walter Lozano <walter@vanguardiasur.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Walter Lozano 2014-10-03 15:09:01 -03:00 committed by David S. Miller
parent 004fa11861
commit 3354313e50
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/ethernet/altera/altera_tse_main.c
View File

@ -736,6 +736,10 @@ static int altera_tse_phy_get_addr_mdio_create(struct net_device *dev)
priv->phy_iface = of_get_phy_mode(np); priv->phy_iface = of_get_phy_mode(np);
/* Avoid get phy addr and create mdio if no phy is present */
if (!priv->phy_iface)
return 0;
/* try to get PHY address from device tree, use PHY autodetection if /* try to get PHY address from device tree, use PHY autodetection if
* no valid address is given * no valid address is given
*/ */
@ -770,6 +774,10 @@ static int init_phy(struct net_device *dev)
struct phy_device *phydev; struct phy_device *phydev;
struct device_node *phynode; struct device_node *phynode;
/* Avoid init phy in case of no phy present */
if (!priv->phy_iface)
return 0;
priv->oldlink = 0; priv->oldlink = 0;
priv->oldspeed = 0; priv->oldspeed = 0;
priv->oldduplex = -1; priv->oldduplex = -1;