diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 51 |
1 files changed, 27 insertions, 24 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index bfe6e2d631bd..1a93787056a7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -11,6 +11,8 @@ #include "dwmac_dma.h" #include "dwmac1000.h" +#define DRIVER_NAME "dwmac-loongson-pci" + /* Normal Loongson Tx Summary */ #define DMA_INTR_ENA_NIE_TX_LOONGSON 0x00040000 /* Normal Loongson Rx Summary */ @@ -149,8 +151,7 @@ static struct stmmac_pci_info loongson_gmac_pci_info = { .setup = loongson_gmac_data, }; -static void loongson_gnet_fix_speed(void *priv, unsigned int speed, - unsigned int mode) +static void loongson_gnet_fix_speed(void *priv, int speed, unsigned int mode) { struct loongson_data *ld = (struct loongson_data *)priv; struct net_device *ndev = dev_get_drvdata(ld->dev); @@ -516,13 +517,26 @@ static int loongson_dwmac_acpi_config(struct pci_dev *pdev, return 0; } +/* Loongson's DWMAC device may take nearly two seconds to complete DMA reset */ +static int loongson_dwmac_fix_reset(void *priv, void __iomem *ioaddr) +{ + u32 value = readl(ioaddr + DMA_BUS_MODE); + + value |= DMA_BUS_MODE_SFT_RESET; + writel(value, ioaddr + DMA_BUS_MODE); + + return readl_poll_timeout(ioaddr + DMA_BUS_MODE, value, + !(value & DMA_BUS_MODE_SFT_RESET), + 10000, 2000000); +} + static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct plat_stmmacenet_data *plat; + struct stmmac_resources res = {}; struct stmmac_pci_info *info; - struct stmmac_resources res; struct loongson_data *ld; - int ret, i; + int ret; plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL); if (!plat) @@ -552,20 +566,14 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id pci_set_master(pdev); /* Get the base address of device */ - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (pci_resource_len(pdev, i) == 0) - continue; - ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev)); - if (ret) - goto err_disable_device; - break; - } - - memset(&res, 0, sizeof(res)); - res.addr = pcim_iomap_table(pdev)[0]; + res.addr = pcim_iomap_region(pdev, 0, DRIVER_NAME); + ret = PTR_ERR_OR_ZERO(res.addr); + if (ret) + goto err_disable_device; plat->bsp_priv = ld; plat->setup = loongson_dwmac_setup; + plat->fix_soc_reset = loongson_dwmac_fix_reset; ld->dev = &pdev->dev; ld->loongson_id = readl(res.addr + GMAC_VERSION) & 0xff; @@ -574,6 +582,9 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id if (ret) goto err_disable_device; + plat->tx_fifo_size = SZ_16K * plat->tx_queues_to_use; + plat->rx_fifo_size = SZ_16K * plat->rx_queues_to_use; + if (dev_of_node(&pdev->dev)) ret = loongson_dwmac_dt_config(pdev, plat, &res); else @@ -606,7 +617,6 @@ static void loongson_dwmac_remove(struct pci_dev *pdev) struct net_device *ndev = dev_get_drvdata(&pdev->dev); struct stmmac_priv *priv = netdev_priv(ndev); struct loongson_data *ld; - int i; ld = priv->plat->bsp_priv; stmmac_dvr_remove(&pdev->dev); @@ -617,13 +627,6 @@ static void loongson_dwmac_remove(struct pci_dev *pdev) if (ld->loongson_id == DWMAC_CORE_LS_MULTICHAN) loongson_dwmac_msi_clear(pdev); - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - if (pci_resource_len(pdev, i) == 0) - continue; - pcim_iounmap_regions(pdev, BIT(i)); - break; - } - pci_disable_device(pdev); } @@ -673,7 +676,7 @@ static const struct pci_device_id loongson_dwmac_id_table[] = { MODULE_DEVICE_TABLE(pci, loongson_dwmac_id_table); static struct pci_driver loongson_dwmac_driver = { - .name = "dwmac-loongson-pci", + .name = DRIVER_NAME, .id_table = loongson_dwmac_id_table, .probe = loongson_dwmac_probe, .remove = loongson_dwmac_remove, |