diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/fec_main.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 62 |
1 files changed, 42 insertions, 20 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index ca2cccc594fd..01f7e811739b 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -60,6 +60,7 @@ #include <linux/if_vlan.h> #include <linux/pinctrl/consumer.h> #include <linux/prefetch.h> +#include <soc/imx/cpuidle.h> #include <asm/cacheflush.h> @@ -111,7 +112,13 @@ static struct platform_device_id fec_devtype[] = { FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM | FEC_QUIRK_HAS_VLAN | FEC_QUIRK_HAS_AVB | FEC_QUIRK_ERR007885 | FEC_QUIRK_BUG_CAPTURE | - FEC_QUIRK_HAS_RACC, + FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE, + }, { + .name = "imx6ul-fec", + .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT | + FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM | + FEC_QUIRK_HAS_VLAN | FEC_QUIRK_BUG_CAPTURE | + FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE, }, { /* sentinel */ } @@ -125,6 +132,7 @@ enum imx_fec_type { IMX6Q_FEC, MVF600_FEC, IMX6SX_FEC, + IMX6UL_FEC, }; static const struct of_device_id fec_dt_ids[] = { @@ -134,6 +142,7 @@ static const struct of_device_id fec_dt_ids[] = { { .compatible = "fsl,imx6q-fec", .data = &fec_devtype[IMX6Q_FEC], }, { .compatible = "fsl,mvf600-fec", .data = &fec_devtype[MVF600_FEC], }, { .compatible = "fsl,imx6sx-fec", .data = &fec_devtype[IMX6SX_FEC], }, + { .compatible = "fsl,imx6ul-fec", .data = &fec_devtype[IMX6UL_FEC], }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, fec_dt_ids); @@ -1197,10 +1206,8 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id) fec16_to_cpu(bdp->cbd_datlen), DMA_TO_DEVICE); bdp->cbd_bufaddr = cpu_to_fec32(0); - if (!skb) { - bdp = fec_enet_get_nextdesc(bdp, &txq->bd); - continue; - } + if (!skb) + goto skb_done; /* Check for errors. */ if (status & (BD_ENET_TX_HB | BD_ENET_TX_LC | @@ -1239,7 +1246,7 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id) /* Free the sk buffer associated with this last transmit */ dev_kfree_skb_any(skb); - +skb_done: /* Make sure the update to bdp and tx_skbuff are performed * before dirty_tx */ @@ -2360,9 +2367,6 @@ static void fec_enet_itr_coal_set(struct net_device *ndev) struct fec_enet_private *fep = netdev_priv(ndev); int rx_itr, tx_itr; - if (!(fep->quirks & FEC_QUIRK_HAS_AVB)) - return; - /* Must be greater than zero to avoid unpredictable behavior */ if (!fep->rx_time_itr || !fep->rx_pkts_itr || !fep->tx_time_itr || !fep->tx_pkts_itr) @@ -2385,10 +2389,12 @@ static void fec_enet_itr_coal_set(struct net_device *ndev) writel(tx_itr, fep->hwp + FEC_TXIC0); writel(rx_itr, fep->hwp + FEC_RXIC0); - writel(tx_itr, fep->hwp + FEC_TXIC1); - writel(rx_itr, fep->hwp + FEC_RXIC1); - writel(tx_itr, fep->hwp + FEC_TXIC2); - writel(rx_itr, fep->hwp + FEC_RXIC2); + if (fep->quirks & FEC_QUIRK_HAS_AVB) { + writel(tx_itr, fep->hwp + FEC_TXIC1); + writel(rx_itr, fep->hwp + FEC_RXIC1); + writel(tx_itr, fep->hwp + FEC_TXIC2); + writel(rx_itr, fep->hwp + FEC_RXIC2); + } } static int @@ -2396,7 +2402,7 @@ fec_enet_get_coalesce(struct net_device *ndev, struct ethtool_coalesce *ec) { struct fec_enet_private *fep = netdev_priv(ndev); - if (!(fep->quirks & FEC_QUIRK_HAS_AVB)) + if (!(fep->quirks & FEC_QUIRK_HAS_COALESCE)) return -EOPNOTSUPP; ec->rx_coalesce_usecs = fep->rx_time_itr; @@ -2414,28 +2420,28 @@ fec_enet_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *ec) struct fec_enet_private *fep = netdev_priv(ndev); unsigned int cycle; - if (!(fep->quirks & FEC_QUIRK_HAS_AVB)) + if (!(fep->quirks & FEC_QUIRK_HAS_COALESCE)) return -EOPNOTSUPP; if (ec->rx_max_coalesced_frames > 255) { - pr_err("Rx coalesced frames exceed hardware limiation"); + pr_err("Rx coalesced frames exceed hardware limitation\n"); return -EINVAL; } if (ec->tx_max_coalesced_frames > 255) { - pr_err("Tx coalesced frame exceed hardware limiation"); + pr_err("Tx coalesced frame exceed hardware limitation\n"); return -EINVAL; } cycle = fec_enet_us_to_itr_clock(ndev, fep->rx_time_itr); if (cycle > 0xFFFF) { - pr_err("Rx coalesed usec exceeed hardware limiation"); + pr_err("Rx coalesced usec exceed hardware limitation\n"); return -EINVAL; } cycle = fec_enet_us_to_itr_clock(ndev, fep->tx_time_itr); if (cycle > 0xFFFF) { - pr_err("Rx coalesed usec exceeed hardware limiation"); + pr_err("Rx coalesced usec exceed hardware limitation\n"); return -EINVAL; } @@ -2820,6 +2826,9 @@ fec_enet_open(struct net_device *ndev) if (ret) goto err_enet_mii_probe; + if (fep->quirks & FEC_QUIRK_ERR006687) + imx6q_cpuidle_fec_irqs_used(); + napi_enable(&fep->napi); phy_start(ndev->phydev); netif_tx_start_all_queues(ndev); @@ -2855,6 +2864,9 @@ fec_enet_close(struct net_device *ndev) phy_disconnect(ndev->phydev); + if (fep->quirks & FEC_QUIRK_ERR006687) + imx6q_cpuidle_fec_irqs_unused(); + fec_enet_clk_enable(ndev, false); pinctrl_pm_select_sleep_state(&fep->pdev->dev); pm_runtime_mark_last_busy(&fep->pdev->dev); @@ -3193,7 +3205,12 @@ static void fec_reset_phy(struct platform_device *pdev) dev_err(&pdev->dev, "failed to get phy-reset-gpios: %d\n", err); return; } - msleep(msec); + + if (msec > 20) + msleep(msec); + else + usleep_range(msec * 1000, msec * 1000 + 1000); + gpio_set_value_cansleep(phy_reset, !active_high); } #else /* CONFIG_OF */ @@ -3294,6 +3311,11 @@ fec_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ndev); + if ((of_machine_is_compatible("fsl,imx6q") || + of_machine_is_compatible("fsl,imx6dl")) && + !of_property_read_bool(np, "fsl,err006687-workaround-present")) + fep->quirks |= FEC_QUIRK_ERR006687; + if (of_get_property(np, "fsl,magic-packet", NULL)) fep->wol_flag |= FEC_WOL_HAS_MAGIC_PACKET; |