From 9fba1c31f4f3f9f860a4afee0b409cde27d06741 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 7 Mar 2010 00:55:47 +0000 Subject: [PATCH] cpmac: fallback to switch mode if no PHY chip found If we were unable to detect a PHY on any of the MDIO bus id we tried instead of bailing out with -ENODEV, assume the MAC is connected to a switch and use MDIO bus 0. This unbreaks quite a lot of devices out there whose switch cannot be detected. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/cpmac.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c index 55ee055d332..baeb5bab05b 100644 --- a/drivers/net/cpmac.c +++ b/drivers/net/cpmac.c @@ -1137,8 +1137,9 @@ static int __devinit cpmac_probe(struct platform_device *pdev) } if (phy_id == PHY_MAX_ADDR) { - dev_err(&pdev->dev, "no PHY present\n"); - return -ENODEV; + dev_err(&pdev->dev, "no PHY present, falling back to switch on MDIO bus 0\n"); + strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */ + phy_id = pdev->id; } dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES); -- 2.11.4.GIT