diff options
| author | Ong Boon Leong <boon.leong.ong@intel.com> | 2022-06-15 16:39:08 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-06-17 10:55:35 +0100 |
| commit | ab21cf920928a791aa70b8665b395294da17667c (patch) | |
| tree | 1ff996b6875f488a0eac6d854f459e4d5260a612 /drivers/net/ethernet/stmicro/stmmac | |
| parent | 72edaf39fc6511b9b30615027cdfafc6d330dd9c (diff) | |
| download | linux-ab21cf920928a791aa70b8665b395294da17667c.tar.gz linux-ab21cf920928a791aa70b8665b395294da17667c.tar.bz2 linux-ab21cf920928a791aa70b8665b395294da17667c.zip | |
net: stmmac: make mdio register skips PHY scanning for fixed-link
stmmac_mdio_register() lacks fixed-link consideration and only skip PHY
scanning if it has done DT style PHY discovery. So, for DT or ACPI _DSD
setting of fixed-link, the PHY scanning should not happen.
v2: fix incorrect order related to fwnode that is not caught in non-DT
platform.
Tested-by: Emilio Riva <emilio.riva@ericsson.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 14 |
2 files changed, 21 insertions, 5 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index d1a7cf4567bc..fe263cad8248 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1128,18 +1128,20 @@ static void stmmac_check_pcs_mode(struct stmmac_priv *priv) static int stmmac_init_phy(struct net_device *dev) { struct stmmac_priv *priv = netdev_priv(dev); - struct device_node *node; + struct fwnode_handle *fwnode; int ret; - node = priv->plat->phylink_node; + fwnode = of_fwnode_handle(priv->plat->phylink_node); + if (!fwnode) + fwnode = dev_fwnode(priv->device); - if (node) - ret = phylink_of_phy_connect(priv->phylink, node, 0); + if (fwnode) + ret = phylink_fwnode_phy_connect(priv->phylink, fwnode, 0); /* Some DT bindings do not set-up the PHY handle. Let's try to * manually parse it */ - if (!node || ret) { + if (!fwnode || ret) { int addr = priv->plat->phy_addr; struct phy_device *phydev; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index 03d3d1f7aa4b..5f177ea80725 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -434,9 +434,11 @@ int stmmac_mdio_register(struct net_device *ndev) int err = 0; struct mii_bus *new_bus; struct stmmac_priv *priv = netdev_priv(ndev); + struct fwnode_handle *fwnode = of_fwnode_handle(priv->plat->phylink_node); struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data; struct device_node *mdio_node = priv->plat->mdio_node; struct device *dev = ndev->dev.parent; + struct fwnode_handle *fixed_node; int addr, found, max_addr; if (!mdio_bus_data) @@ -490,6 +492,18 @@ int stmmac_mdio_register(struct net_device *ndev) if (priv->plat->has_xgmac) stmmac_xgmac2_mdio_read(new_bus, 0, MII_ADDR_C45); + /* If fixed-link is set, skip PHY scanning */ + if (!fwnode) + fwnode = dev_fwnode(priv->device); + + if (fwnode) { + fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link"); + if (fixed_node) { + fwnode_handle_put(fixed_node); + goto bus_register_done; + } + } + if (priv->plat->phy_node || mdio_node) goto bus_register_done; |