diff options
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/phy.txt | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/Documentation/networking/phy.txt b/Documentation/networking/phy.txt index 29ccae40903..0bc95eab151 100644 --- a/Documentation/networking/phy.txt +++ b/Documentation/networking/phy.txt @@ -1,7 +1,7 @@ ------- PHY Abstraction Layer -(Updated 2005-07-21) +(Updated 2006-11-30) Purpose @@ -97,11 +97,12 @@ Letting the PHY Abstraction Layer do Everything Next, you need to know the device name of the PHY connected to this device. The name will look something like, "phy0:0", where the first number is the - bus id, and the second is the PHY's address on that bus. + bus id, and the second is the PHY's address on that bus. Typically, + the bus is responsible for making its ID unique. Now, to connect, just call this function: - phydev = phy_connect(dev, phy_name, &adjust_link, flags); + phydev = phy_connect(dev, phy_name, &adjust_link, flags, interface); phydev is a pointer to the phy_device structure which represents the PHY. If phy_connect is successful, it will return the pointer. dev, here, is the @@ -115,6 +116,10 @@ Letting the PHY Abstraction Layer do Everything This is useful if the system has put hardware restrictions on the PHY/controller, of which the PHY needs to be aware. + interface is a u32 which specifies the connection type used + between the controller and the PHY. Examples are GMII, MII, + RGMII, and SGMII. For a full list, see include/linux/phy.h + Now just make sure that phydev->supported and phydev->advertising have any values pruned from them which don't make sense for your controller (a 10/100 controller may be connected to a gigabit capable PHY, so you would need to @@ -191,7 +196,7 @@ Doing it all yourself start, or disables then frees them for stop. struct phy_device * phy_attach(struct net_device *dev, const char *phy_id, - u32 flags); + u32 flags, phy_interface_t interface); Attaches a network device to a particular PHY, binding the PHY to a generic driver if none was found during bus initialization. Passes in |