diff options
Diffstat (limited to 'drivers/net/dsa/b53/b53_mdio.c')
| -rw-r--r-- | drivers/net/dsa/b53/b53_mdio.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/dsa/b53/b53_mdio.c b/drivers/net/dsa/b53/b53_mdio.c index c6cf7cf57cc3..aa87c3fffdac 100644 --- a/drivers/net/dsa/b53/b53_mdio.c +++ b/drivers/net/dsa/b53/b53_mdio.c @@ -316,6 +316,17 @@ static int b53_mdio_probe(struct mdio_device *mdiodev) return -ENODEV; } + /* First probe will come from SWITCH_MDIO controller on the 7445D0 + * switch, which will conflict with the 7445 integrated switch + * pseudo-phy (we end-up programming both). In that case, we return + * -EPROBE_DEFER for the first time we get here, and wait until we come + * back with the slave MDIO bus which has the correct indirection + * layer setup + */ + if (of_machine_is_compatible("brcm,bcm7445d0") && + strcmp(mdiodev->bus->name, "sf2 slave mii")) + return -EPROBE_DEFER; + dev = b53_switch_alloc(&mdiodev->dev, &b53_mdio_ops, mdiodev->bus); if (!dev) return -ENOMEM; |