From 98f64a89977a32df96cdb8aaf3884086b2309924 Mon Sep 17 00:00:00 2001 From: Alex Marginean Date: Tue, 27 Aug 2019 15:14:11 +0300 Subject: [PATCH] enetc: Use DT protocol information to set up the ports Use DT information rather than in-band information from bootloader to set up MAC for XGMII. For RGMII use the DT indication in addition to RGMII defaults in hardware. However, this implies that PHY connection information needs to be extracted before netdevice creation, when the ENETC Port MAC is being configured. Signed-off-by: Alex Marginean Signed-off-by: Claudiu Manoil --- drivers/net/ethernet/freescale/enetc/enetc_pf.c | 55 ++++++++++++++----------- drivers/net/ethernet/freescale/enetc/enetc_pf.h | 3 ++ 2 files changed, 33 insertions(+), 25 deletions(-) --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -507,7 +507,8 @@ static void enetc_port_si_configure(stru enetc_port_wr(hw, ENETC_PSIVLANFMR, ENETC_PSIVLANFMR_VS); } -static void enetc_configure_port_mac(struct enetc_hw *hw) +static void enetc_configure_port_mac(struct enetc_hw *hw, + phy_interface_t phy_mode) { enetc_port_wr(hw, ENETC_PM0_MAXFRM, ENETC_SET_MAXFRM(ENETC_RX_MAXFRM_SIZE)); @@ -523,9 +524,11 @@ static void enetc_configure_port_mac(str ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC | ENETC_PM0_TX_EN | ENETC_PM0_RX_EN); /* set auto-speed for RGMII */ - if (enetc_port_rd(hw, ENETC_PM0_IF_MODE) & ENETC_PMO_IFM_RG) + if (enetc_port_rd(hw, ENETC_PM0_IF_MODE) & ENETC_PMO_IFM_RG || + phy_mode == PHY_INTERFACE_MODE_RGMII) enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_RGAUTO); - if (enetc_global_rd(hw, ENETC_G_EPFBLPR(1)) == ENETC_G_EPFBLPR1_XGMII) + + if (phy_mode == PHY_INTERFACE_MODE_XGMII) enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_XGMII); } @@ -549,7 +552,7 @@ static void enetc_configure_port(struct enetc_configure_port_pmac(hw); - enetc_configure_port_mac(hw); + enetc_configure_port_mac(hw, pf->if_mode); enetc_port_si_configure(pf->si); @@ -749,28 +752,28 @@ static void enetc_pf_netdev_setup(struct enetc_get_primary_mac_addr(&si->hw, ndev->dev_addr); } -static int enetc_of_get_phy(struct enetc_ndev_priv *priv) +static int enetc_of_get_phy(struct enetc_pf *pf) { - struct enetc_pf *pf = enetc_si_priv(priv->si); - struct device_node *np = priv->dev->of_node; + struct device *dev = &pf->si->pdev->dev; + struct device_node *np = dev->of_node; struct device_node *mdio_np; int phy_mode; int err; - priv->phy_node = of_parse_phandle(np, "phy-handle", 0); - if (!priv->phy_node) { + pf->phy_node = of_parse_phandle(np, "phy-handle", 0); + if (!pf->phy_node) { if (!of_phy_is_fixed_link(np)) { - dev_err(priv->dev, "PHY not specified\n"); + dev_err(dev, "PHY not specified\n"); return -ENODEV; } err = of_phy_register_fixed_link(np); if (err < 0) { - dev_err(priv->dev, "fixed link registration failed\n"); + dev_err(dev, "fixed link registration failed\n"); return err; } - priv->phy_node = of_node_get(np); + pf->phy_node = of_node_get(np); } mdio_np = of_get_child_by_name(np, "mdio"); @@ -778,28 +781,28 @@ static int enetc_of_get_phy(struct enetc of_node_put(mdio_np); err = enetc_mdio_probe(pf); if (err) { - of_node_put(priv->phy_node); + of_node_put(pf->phy_node); return err; } } phy_mode = of_get_phy_mode(np); if (phy_mode < 0) - priv->if_mode = PHY_INTERFACE_MODE_NA; /* fixed link */ + pf->if_mode = PHY_INTERFACE_MODE_NA; /* fixed link */ else - priv->if_mode = phy_mode; + pf->if_mode = phy_mode; return 0; } -static void enetc_of_put_phy(struct enetc_ndev_priv *priv) +static void enetc_of_put_phy(struct enetc_pf *pf) { - struct device_node *np = priv->dev->of_node; + struct device_node *np = pf->si->pdev->dev.of_node; if (np && of_phy_is_fixed_link(np)) of_phy_deregister_fixed_link(np); - if (priv->phy_node) - of_node_put(priv->phy_node); + if (pf->phy_node) + of_node_put(pf->phy_node); } /* Initialize the entire shared memory for the flow steering entries @@ -955,6 +958,10 @@ static int enetc_pf_probe(struct pci_dev pf->si = si; pf->total_vfs = pci_sriov_get_totalvfs(pdev); + err = enetc_of_get_phy(pf); + if (err) + dev_warn(&pdev->dev, "Fallback to PHY-less operation\n"); + enetc_configure_port(pf); enetc_get_si_caps(si); @@ -969,6 +976,8 @@ static int enetc_pf_probe(struct pci_dev enetc_pf_netdev_setup(si, ndev, &enetc_ndev_ops); priv = netdev_priv(ndev); + priv->phy_node = pf->phy_node; + priv->if_mode = pf->if_mode; enetc_init_si_rings_params(priv); @@ -1002,10 +1011,6 @@ static int enetc_pf_probe(struct pci_dev goto err_alloc_msix; } - err = enetc_of_get_phy(priv); - if (err) - dev_warn(&pdev->dev, "Fallback to PHY-less operation\n"); - err = enetc_configure_serdes(priv); if (err) dev_warn(&pdev->dev, "Attempted serdes config but failed\n"); @@ -1023,7 +1028,6 @@ static int enetc_pf_probe(struct pci_dev err_reg_netdev: enetc_mdio_remove(pf); - enetc_of_put_phy(priv); enetc_free_msix(priv); err_config_si: err_init_port_rss: @@ -1034,6 +1038,7 @@ err_alloc_si_res: si->ndev = NULL; free_netdev(ndev); err_alloc_netdev: + enetc_of_put_phy(pf); err_device_disabled: err_map_pf_space: enetc_pci_remove(pdev); @@ -1057,7 +1062,7 @@ static void enetc_pf_remove(struct pci_d unregister_netdev(si->ndev); enetc_mdio_remove(pf); - enetc_of_put_phy(priv); + enetc_of_put_phy(pf); enetc_free_msix(priv); --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h @@ -45,6 +45,9 @@ struct enetc_pf { struct mii_bus *mdio; /* saved for cleanup */ struct mii_bus *imdio; + + struct device_node *phy_node; + phy_interface_t if_mode; }; int enetc_msg_psi_init(struct enetc_pf *pf);