diff options
Diffstat (limited to 'drivers/net/ethernet/qualcomm')
| -rw-r--r-- | drivers/net/ethernet/qualcomm/emac/emac-sgmii.c | 49 |
1 files changed, 10 insertions, 39 deletions
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c index 0149b523eda4..b5269c4dd4ee 100644 --- a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c +++ b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c @@ -47,44 +47,19 @@ #define SERDES_START_WAIT_TIMES 100 -static int emac_sgmii_link_init(struct emac_adapter *adpt) +/* Initialize the SGMII link between the internal and external PHYs. */ +static void emac_sgmii_link_init(struct emac_adapter *adpt) { - struct phy_device *phydev = adpt->phydev; struct emac_sgmii *phy = &adpt->phy; u32 val; + /* Always use autonegotiation. It works no matter how the external + * PHY is configured. + */ val = readl(phy->base + EMAC_SGMII_PHY_AUTONEG_CFG2); - - if (phydev->autoneg == AUTONEG_ENABLE) { - val &= ~(FORCE_AN_RX_CFG | FORCE_AN_TX_CFG); - val |= AN_ENABLE; - writel(val, phy->base + EMAC_SGMII_PHY_AUTONEG_CFG2); - } else { - u32 speed_cfg; - - switch (phydev->speed) { - case SPEED_10: - speed_cfg = SPDMODE_10; - break; - case SPEED_100: - speed_cfg = SPDMODE_100; - break; - case SPEED_1000: - speed_cfg = SPDMODE_1000; - break; - default: - return -EINVAL; - } - - if (phydev->duplex == DUPLEX_FULL) - speed_cfg |= DUPLEX_MODE; - - val &= ~AN_ENABLE; - writel(speed_cfg, phy->base + EMAC_SGMII_PHY_SPEED_CFG1); - writel(val, phy->base + EMAC_SGMII_PHY_AUTONEG_CFG2); - } - - return 0; + val &= ~(FORCE_AN_RX_CFG | FORCE_AN_TX_CFG); + val |= AN_ENABLE; + writel(val, phy->base + EMAC_SGMII_PHY_AUTONEG_CFG2); } static int emac_sgmii_irq_clear(struct emac_adapter *adpt, u32 irq_bits) @@ -145,12 +120,7 @@ void emac_sgmii_reset(struct emac_adapter *adpt) int ret; emac_sgmii_reset_prepare(adpt); - - ret = emac_sgmii_link_init(adpt); - if (ret) { - netdev_err(adpt->netdev, "unsupported link speed\n"); - return; - } + emac_sgmii_link_init(adpt); ret = adpt->phy.initialize(adpt); if (ret) @@ -287,6 +257,7 @@ int emac_sgmii_config(struct platform_device *pdev, struct emac_adapter *adpt) goto error; emac_sgmii_irq_clear(adpt, SGMII_PHY_INTERRUPT_ERR); + emac_sgmii_link_init(adpt); /* We've remapped the addresses, so we don't need the device any * more. of_find_device_by_node() says we should release it. |