diff options
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 69 | ||||
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.h | 7 |
2 files changed, 58 insertions, 18 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index b38e4f2de674..f8a907747db4 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -3336,6 +3336,48 @@ static void mtk_tx_timeout(struct net_device *dev, unsigned int txqueue) schedule_work(ð->pending_work); } +static int mtk_get_irqs(struct platform_device *pdev, struct mtk_eth *eth) +{ + int i; + + /* future SoCs beginning with MT7988 should use named IRQs in dts */ + eth->irq[MTK_FE_IRQ_TX] = platform_get_irq_byname(pdev, "fe1"); + eth->irq[MTK_FE_IRQ_RX] = platform_get_irq_byname(pdev, "fe2"); + if (eth->irq[MTK_FE_IRQ_TX] >= 0 && eth->irq[MTK_FE_IRQ_RX] >= 0) + return 0; + + /* only use legacy mode if platform_get_irq_byname returned -ENXIO */ + if (eth->irq[MTK_FE_IRQ_TX] != -ENXIO) + return eth->irq[MTK_FE_IRQ_TX]; + + if (eth->irq[MTK_FE_IRQ_RX] != -ENXIO) + return eth->irq[MTK_FE_IRQ_RX]; + + /* legacy way: + * On MTK_SHARED_INT SoCs (MT7621 + MT7628) the first IRQ is taken + * from devicetree and used for both RX and TX - it is shared. + * On SoCs with non-shared IRQs the first entry is not used, + * the second is for TX, and the third is for RX. + */ + for (i = 0; i < MTK_FE_IRQ_NUM; i++) { + if (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_INT)) { + if (i == MTK_FE_IRQ_SHARED) + eth->irq[MTK_FE_IRQ_SHARED] = platform_get_irq(pdev, i); + else + eth->irq[i] = eth->irq[MTK_FE_IRQ_SHARED]; + } else { + eth->irq[i] = platform_get_irq(pdev, i + 1); + } + + if (eth->irq[i] < 0) { + dev_err(&pdev->dev, "no IRQ%d resource found\n", i); + return -ENXIO; + } + } + + return 0; +} + static irqreturn_t mtk_handle_irq_rx(int irq, void *_eth) { struct mtk_eth *eth = _eth; @@ -3389,7 +3431,7 @@ static void mtk_poll_controller(struct net_device *dev) mtk_tx_irq_disable(eth, MTK_TX_DONE_INT); mtk_rx_irq_disable(eth, eth->soc->rx.irq_done_mask); - mtk_handle_irq_rx(eth->irq[2], dev); + mtk_handle_irq_rx(eth->irq[MTK_FE_IRQ_RX], dev); mtk_tx_irq_enable(eth, MTK_TX_DONE_INT); mtk_rx_irq_enable(eth, eth->soc->rx.irq_done_mask); } @@ -4875,7 +4917,7 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) eth->netdev[id]->features |= eth->soc->hw_features; eth->netdev[id]->ethtool_ops = &mtk_ethtool_ops; - eth->netdev[id]->irq = eth->irq[0]; + eth->netdev[id]->irq = eth->irq[MTK_FE_IRQ_SHARED]; eth->netdev[id]->dev.of_node = np; if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) @@ -5105,17 +5147,10 @@ static int mtk_probe(struct platform_device *pdev) } } - for (i = 0; i < 3; i++) { - if (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_INT) && i > 0) - eth->irq[i] = eth->irq[0]; - else - eth->irq[i] = platform_get_irq(pdev, i); - if (eth->irq[i] < 0) { - dev_err(&pdev->dev, "no IRQ%d resource found\n", i); - err = -ENXIO; - goto err_wed_exit; - } - } + err = mtk_get_irqs(pdev, eth); + if (err) + goto err_wed_exit; + for (i = 0; i < ARRAY_SIZE(eth->clks); i++) { eth->clks[i] = devm_clk_get(eth->dev, mtk_clks_source_name[i]); @@ -5159,17 +5194,17 @@ static int mtk_probe(struct platform_device *pdev) } if (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_INT)) { - err = devm_request_irq(eth->dev, eth->irq[0], + err = devm_request_irq(eth->dev, eth->irq[MTK_FE_IRQ_SHARED], mtk_handle_irq, 0, dev_name(eth->dev), eth); } else { - err = devm_request_irq(eth->dev, eth->irq[1], + err = devm_request_irq(eth->dev, eth->irq[MTK_FE_IRQ_TX], mtk_handle_irq_tx, 0, dev_name(eth->dev), eth); if (err) goto err_free_dev; - err = devm_request_irq(eth->dev, eth->irq[2], + err = devm_request_irq(eth->dev, eth->irq[MTK_FE_IRQ_RX], mtk_handle_irq_rx, 0, dev_name(eth->dev), eth); } @@ -5215,7 +5250,7 @@ static int mtk_probe(struct platform_device *pdev) } else netif_info(eth, probe, eth->netdev[i], "mediatek frame engine at 0x%08lx, irq %d\n", - eth->netdev[i]->base_addr, eth->irq[0]); + eth->netdev[i]->base_addr, eth->irq[MTK_FE_IRQ_SHARED]); } /* we run 2 devices on the same DMA ring so we need a dummy device diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 6f72a8c8ae1e..9261c0e13b59 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -642,6 +642,11 @@ #define MTK_MAC_FSM(x) (0x1010C + ((x) * 0x100)) +#define MTK_FE_IRQ_SHARED 0 +#define MTK_FE_IRQ_TX 0 +#define MTK_FE_IRQ_RX 1 +#define MTK_FE_IRQ_NUM (MTK_FE_IRQ_RX + 1) + struct mtk_rx_dma { unsigned int rxd1; unsigned int rxd2; @@ -1292,7 +1297,7 @@ struct mtk_eth { struct net_device *dummy_dev; struct net_device *netdev[MTK_MAX_DEVS]; struct mtk_mac *mac[MTK_MAX_DEVS]; - int irq[3]; + int irq[MTK_FE_IRQ_NUM]; u32 msg_enable; unsigned long sysclk; struct regmap *ethsys; |