diff options
| author | Ivan Mikhaylov <i.mikhaylov@yadro.com> | 2020-10-30 16:37:06 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-02 15:10:55 -0800 |
| commit | f8b7b50c8411514d84a3545f0d2072db8f9c46a1 (patch) | |
| tree | 9385897a62c8204666b4cfb29e1641daa513af39 /drivers/net/ethernet/faraday | |
| parent | 68ed78b52357f63562402dfd9926ff73bdfa8ca7 (diff) | |
net: ftgmac100: add handling of mdio/phy nodes for ast2400/2500
phy-handle can't be handled well for ast2400/2500 which has an embedded
MDIO controller. Add ftgmac100_mdio_setup for ast2400/2500 and initialize
PHYs from mdio child node with of_mdiobus_register.
Signed-off-by: Ivan Mikhaylov <i.mikhaylov@yadro.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/faraday')
| -rw-r--r-- | drivers/net/ethernet/faraday/ftgmac100.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c index 126bd7c83305..983b6db2d80d 100644 --- a/drivers/net/ethernet/faraday/ftgmac100.c +++ b/drivers/net/ethernet/faraday/ftgmac100.c @@ -1631,6 +1631,7 @@ static int ftgmac100_setup_mdio(struct net_device *netdev) struct ftgmac100 *priv = netdev_priv(netdev); struct platform_device *pdev = to_platform_device(priv->dev); struct device_node *np = pdev->dev.of_node; + struct device_node *mdio_np; int i, err = 0; u32 reg; @@ -1662,12 +1663,16 @@ static int ftgmac100_setup_mdio(struct net_device *netdev) for (i = 0; i < PHY_MAX_ADDR; i++) priv->mii_bus->irq[i] = PHY_POLL; - err = mdiobus_register(priv->mii_bus); + mdio_np = of_get_child_by_name(np, "mdio"); + + err = of_mdiobus_register(priv->mii_bus, mdio_np); if (err) { dev_err(priv->dev, "Cannot register MDIO bus!\n"); goto err_register_mdiobus; } + of_node_put(mdio_np); + return 0; err_register_mdiobus: @@ -1835,11 +1840,22 @@ static int ftgmac100_probe(struct platform_device *pdev) } else if (np && of_get_property(np, "phy-handle", NULL)) { struct phy_device *phy; + /* Support "mdio"/"phy" child nodes for ast2400/2500 with + * an embedded MDIO controller. Automatically scan the DTS for + * available PHYs and register them. + */ + if (of_device_is_compatible(np, "aspeed,ast2400-mac") || + of_device_is_compatible(np, "aspeed,ast2500-mac")) { + err = ftgmac100_setup_mdio(netdev); + if (err) + goto err_setup_mdio; + } + phy = of_phy_get_and_connect(priv->netdev, np, &ftgmac100_adjust_link); if (!phy) { dev_err(&pdev->dev, "Failed to connect to phy\n"); - goto err_setup_mdio; + goto err_phy_connect; } /* Indicate that we support PAUSE frames (see comment in |