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authorFlorian Fainelli <florian@openwrt.org>2010-03-07 00:55:47 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-07 15:25:53 -0800
commit9fba1c31f4f3f9f860a4afee0b409cde27d06741 (patch)
treea60e05c46412926d2d23f027f3689fdd109c75af
parent30765d0502905a9248e5de72fc7ac83c23422861 (diff)
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>
-rw-r--r--drivers/net/cpmac.c5
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);