Messages in this thread Patch in this message | | | From | Ong Boon Leong <> | Subject | [PATCH net-next 2/4] net: stmmac: introduce PHY-less setup support | Date | Fri, 22 Apr 2022 15:35:03 +0800 |
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Certain platform uses PHY-less configuration whereby the MAC controller is connected to network switch chip directly over SGMII or 1000BASE-X.
This patch prepares the stmmac driver to support PHY-less configuration described above.
Tested-by: Emilio Riva <emilio.riva@ericsson.com> Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com> --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 +++++++++- drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c | 2 +- include/linux/stmmac.h | 1 + 3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 57cb11abec8..4d39387bc48 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1142,11 +1142,18 @@ 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 stmmac_mdio_bus_data *mdio_bus_data; struct device_node *node; - int ret; + int ret = 0; + mdio_bus_data = priv->plat->mdio_bus_data; node = priv->plat->phylink_node; + if (mdio_bus_data->phyless) { + netdev_info(priv->dev, "using PHY-less setup\n"); + goto phyless_setup; + } + if (node) ret = phylink_of_phy_connect(priv->phylink, node, 0); @@ -1166,6 +1173,7 @@ static int stmmac_init_phy(struct net_device *dev) ret = phylink_connect_phy(priv->phylink, phydev); } +phyless_setup: if (!priv->plat->pmt) { struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index 9bc625fccca..16ce188697e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -490,7 +490,7 @@ int stmmac_mdio_register(struct net_device *ndev) if (priv->plat->has_xgmac) stmmac_xgmac2_mdio_read(new_bus, 0, MII_ADDR_C45); - if (priv->plat->phy_node || mdio_node) + if (priv->plat->phy_node || mdio_node || mdio_bus_data->phyless) goto bus_register_done; found = 0; diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index f8e8df25098..238d452ef43 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -82,6 +82,7 @@ struct stmmac_mdio_bus_data { unsigned int phy_mask; unsigned int has_xpcs; unsigned int xpcs_an_inband; + unsigned int phyless; int *irqs; int probed_phy_irq; bool needs_reset; -- 2.25.1
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