Commit 9fba1c31 authored Mar 07, 2010 by Florian Fainelli Committed by David S. Miller Mar 07, 2010

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>

parent 30765d05

drivers/net/cpmac.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -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);