* [PATCH 2/3] cpmac: fallback to switch mode if no PHY chip found
@ 2010-03-07 10:55 Florian Fainelli
0 siblings, 0 replies; only message in thread
From: Florian Fainelli @ 2010-03-07 10:55 UTC (permalink / raw)
To: netdev, David S. Miller
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>
---
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index 722a196..4051e81 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);
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2010-03-07 10:55 [PATCH 2/3] cpmac: fallback to switch mode if no PHY chip found Florian Fainelli
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