This patch adds support for searching through available PHY-addresses in the macb-driver. This is needed for the ATEVK1100 evaluation board, where the PHY-address will be initialized to either 1 or 7.
Signed-off-by: Gunnar Rangoy gunnar@rangoy.com Signed-off-by: Paul Driveklepp pauldriveklepp@gmail.com Signed-off-by: Olav Morken olavmrk@gmail.com --- drivers/net/macb.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 4fef374..561669b 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -338,6 +338,27 @@ static void macb_phy_reset(struct macb_device *macb) netdev->name, status); }
+static int macb_phy_find(struct macb_device *macb) +{ + int i; + u16 phy_id; + + /* Search for PHY... */ + for (i = 0; i < 32; i++) { + macb->phy_addr=i; + phy_id = macb_mdio_read(macb, MII_PHYSID1); + if (phy_id != 0xffff) { + printf("%s: PHY present at %d\n", macb->netdev.name, i); + return 1; + } + } + + /* PHY isn't up to snuff */ + printf("%s: PHY not found", macb->netdev.name); + + return 0; +} + static int macb_phy_init(struct macb_device *macb) { struct eth_device *netdev = &macb->netdev; @@ -346,6 +367,13 @@ static int macb_phy_init(struct macb_device *macb) int media, speed, duplex; int i;
+ if (macb->phy_addr == 0xff) { + /* Auto-detect phy_addr */ + if (!macb_phy_find(macb)) { + return 0; + } + } + /* Check if the PHY is up to snuff... */ phy_id = macb_mdio_read(macb, MII_PHYSID1); if (phy_id == 0xffff) {