The current bcm63xx_enet driver doesn't asign the internal phy IRQ. As a
result of this it works in polling mode.
Fix it using the phy_device structure to assign the platform IRQ.
Tested under a BCM6348 board. Kernel dmesg before the patch:
Broadcom BCM63XX (1) bcm63xx_enet-0:01: attached PHY driver [Broadcom
BCM63XX (1)] (mii_bus:phy_addr=bcm63xx_enet-0:01, irq=POLL)
After the patch:
Broadcom BCM63XX (1) bcm63xx_enet-0:01: attached PHY driver [Broadcom
BCM63XX (1)] (mii_bus:phy_addr=bcm63xx_enet-0:01, irq=17)
Pluging and uplugging the ethernet cable now generates interrupts and the
PHY goes up and down as expected.
Signed-off-by: Daniel González Cabanelas <[email protected]>
---
changes in V2:
- snippet moved after the mdiobus registration
- added missing brackets
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index fd876721316..dd218722560 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1818,10 +1818,19 @@ static int bcm_enet_probe(struct platform_device *pdev)
* if a slave is not present on hw */
bus->phy_mask = ~(1 << priv->phy_id);
- if (priv->has_phy_interrupt)
+ ret = mdiobus_register(bus);
+
+ if (priv->has_phy_interrupt) {
+ phydev = mdiobus_get_phy(bus, priv->phy_id);
+ if (!phydev) {
+ dev_err(&dev->dev, "no PHY found\n");
+ goto out_unregister_mdio;
+ }
+
bus->irq[priv->phy_id] = priv->phy_interrupt;
+ phydev->irq = priv->phy_interrupt;
+ }
- ret = mdiobus_register(bus);
if (ret) {
dev_err(&pdev->dev, "unable to register mdio bus\n");
goto out_free_mdio;
--
2.30.1
