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| author | Florian Fainelli <florian@openwrt.org> | 2010-03-07 00:55:47 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-03-07 15:25:53 -0800 |
| commit | 9fba1c31f4f3f9f860a4afee0b409cde27d06741 (patch) | |
| tree | a60e05c46412926d2d23f027f3689fdd109c75af /drivers | |
| parent | 30765d0502905a9248e5de72fc7ac83c23422861 (diff) | |
| download | linux-9fba1c31f4f3f9f860a4afee0b409cde27d06741.tar.gz linux-9fba1c31f4f3f9f860a4afee0b409cde27d06741.tar.bz2 linux-9fba1c31f4f3f9f860a4afee0b409cde27d06741.zip | |
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 <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/cpmac.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c index 55ee055d3321..baeb5bab05b5 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); |