diff options
| -rw-r--r-- | drivers/net/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/net/r6040.c | 298 |
2 files changed, 145 insertions, 154 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 2decc597bda7..fe113d0e9456 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1659,6 +1659,7 @@ config R6040 depends on NET_PCI && PCI select CRC32 select MII + select PHYLIB help This is a driver for the R6040 Fast Ethernet MACs found in the the RDC R-321x System-on-chips. diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c index 9a251acf5ab8..6878511afc4e 100644 --- a/drivers/net/r6040.c +++ b/drivers/net/r6040.c @@ -44,6 +44,7 @@ #include <linux/io.h> #include <linux/irq.h> #include <linux/uaccess.h> +#include <linux/phy.h> #include <asm/processor.h> @@ -179,7 +180,6 @@ struct r6040_descriptor { struct r6040_private { spinlock_t lock; /* driver lock */ - struct timer_list timer; struct pci_dev *pdev; struct r6040_descriptor *rx_insert_ptr; struct r6040_descriptor *rx_remove_ptr; @@ -189,13 +189,15 @@ struct r6040_private { struct r6040_descriptor *tx_ring; dma_addr_t rx_ring_dma; dma_addr_t tx_ring_dma; - u16 tx_free_desc, phy_addr, phy_mode; + u16 tx_free_desc, phy_addr; u16 mcr0, mcr1; - u16 switch_sig; struct net_device *dev; - struct mii_if_info mii_if; + struct mii_bus *mii_bus; struct napi_struct napi; void __iomem *base; + struct phy_device *phydev; + int old_link; + int old_duplex; }; static char version[] __devinitdata = KERN_INFO DRV_NAME @@ -238,20 +240,30 @@ static void r6040_phy_write(void __iomem *ioaddr, int phy_addr, int reg, u16 val } } -static int r6040_mdio_read(struct net_device *dev, int mii_id, int reg) +static int r6040_mdiobus_read(struct mii_bus *bus, int phy_addr, int reg) { + struct net_device *dev = bus->priv; struct r6040_private *lp = netdev_priv(dev); void __iomem *ioaddr = lp->base; - return (r6040_phy_read(ioaddr, lp->phy_addr, reg)); + return r6040_phy_read(ioaddr, phy_addr, reg); } -static void r6040_mdio_write(struct net_device *dev, int mii_id, int reg, int val) +static int r6040_mdiobus_write(struct mii_bus *bus, int phy_addr, + int reg, u16 value) { + struct net_device *dev = bus->priv; struct r6040_private *lp = netdev_priv(dev); void __iomem *ioaddr = lp->base; - r6040_phy_write(ioaddr, lp->phy_addr, reg, val); + r6040_phy_write(ioaddr, phy_addr, reg, value); + + return 0; +} + +static int r6040_mdiobus_reset(struct mii_bus *bus) +{ + return 0; } static void r6040_free_txbufs(struct net_device *dev) @@ -408,10 +420,9 @@ static void r6040_tx_timeout(struct net_device *dev) void __iomem *ioaddr = priv->base; netdev_warn(dev, "transmit timed out, int enable %4.4x " - "status %4.4x, PHY status %4.4x\n", + "status %4.4x\n", ioread16(ioaddr + MIER), - ioread16(ioaddr + MISR), - r6040_mdio_read(dev, priv->mii_if.phy_id, MII_BMSR)); + ioread16(ioaddr + MISR)); dev->stats.tx_errors++; @@ -463,9 +474,6 @@ static int r6040_close(struct net_device *dev) struct r6040_private *lp = netdev_priv(dev); struct pci_dev *pdev = lp->pdev; - /* deleted timer */ - del_timer_sync(&lp->timer); - spin_lock_irq(&lp->lock); napi_disable(&lp->napi); netif_stop_queue(dev); @@ -495,64 +503,14 @@ static int r6040_close(struct net_device *dev) return 0; } -/* Status of PHY CHIP */ -static int r6040_phy_mode_chk(struct net_device *dev) -{ - struct r6040_private *lp = netdev_priv(dev); - void __iomem *ioaddr = lp->base; - int phy_dat; - - /* PHY Link Status Check */ - phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 1); - if (!(phy_dat & 0x4)) - phy_dat = 0x8000; /* Link Failed, full duplex */ - - /* PHY Chip Auto-Negotiation Status */ - phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 1); - if (phy_dat & 0x0020) { - /* Auto Negotiation Mode */ - phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 5); - phy_dat &= r6040_phy_read(ioaddr, lp->phy_addr, 4); - if (phy_dat & 0x140) - /* Force full duplex */ - phy_dat = 0x8000; - else - phy_dat = 0; - } else { - /* Force Mode */ - phy_dat = r6040_phy_read(ioaddr, lp->phy_addr, 0); - if (phy_dat & 0x100) - phy_dat = 0x8000; - else - phy_dat = 0x0000; - } - - return phy_dat; -}; - -static void r6040_set_carrier(struct mii_if_info *mii) -{ - if (r6040_phy_mode_chk(mii->dev)) { - /* autoneg is off: Link is always assumed to be up */ - if (!netif_carrier_ok(mii->dev)) - netif_carrier_on(mii->dev); - } else - r6040_phy_mode_chk(mii->dev); -} - static int r6040_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { struct r6040_private *lp = netdev_priv(dev); - struct mii_ioctl_data *data = if_mii(rq); - int rc; - if (!netif_running(dev)) + if (!lp->phydev) return -EINVAL; - spin_lock_irq(&lp->lock); - rc = generic_mii_ioctl(&lp->mii_if, data, cmd, NULL); - spin_unlock_irq(&lp->lock); - r6040_set_carrier(&lp->mii_if); - return rc; + + return phy_mii_ioctl(lp->phydev, if_mii(rq), cmd); } static int r6040_rx(struct net_device *dev, int limit) @@ -751,26 +709,6 @@ static int r6040_up(struct net_device *dev) if (ret) return ret; - /* Read the PHY ID */ - lp->switch_sig = r6040_phy_read(ioaddr, 0, 2); - - if (lp->switch_sig == ICPLUS_PHY_ID) { - r6040_phy_write(ioaddr, 29, 31, 0x175C); /* Enable registers */ - lp->phy_mode = 0x8000; - } else { - /* PHY Mode Check */ - r6040_phy_write(ioaddr, lp->phy_addr, 4, PHY_CAP); - r6040_phy_write(ioaddr, lp->phy_addr, 0, PHY_MODE); - - if (PHY_MODE == 0x3100) - lp->phy_mode = r6040_phy_mode_chk(dev); - else - lp->phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0; - } - - /* Set duplex mode */ - lp->mcr0 |= lp->phy_mode; - /* improve performance (by RDC guys) */ r6040_phy_write(ioaddr, 30, 17, (r6040_phy_read(ioaddr, 30, 17) | 0x4000)); r6040_phy_write(ioaddr, 30, 17, ~((~r6040_phy_read(ioaddr, 30, 17)) | 0x2000)); @@ -783,35 +721,6 @@ static int r6040_up(struct net_device *dev) return 0; } -/* - A periodic timer routine - Polling PHY Chip Link Status -*/ -static void r6040_timer(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct r6040_private *lp = netdev_priv(dev); - void __iomem *ioaddr = lp->base; - u16 phy_mode; - - /* Polling PHY Chip Status */ - if (PHY_MODE == 0x3100) - phy_mode = r6040_phy_mode_chk(dev); - else - phy_mode = (PHY_MODE & 0x0100) ? 0x8000:0x0; - - if (phy_mode != lp->phy_mode) { - lp->phy_mode = phy_mode; - lp->mcr0 = (lp->mcr0 & 0x7fff) | phy_mode; - iowrite16(lp->mcr0, ioaddr); - } - - /* Timer active again */ - mod_timer(&lp->timer, round_jiffies(jiffies + HZ)); - - /* Check media */ - mii_check_media(&lp->mii_if, 1, 1); -} /* Read/set MAC address routines */ static void r6040_mac_address(struct net_device *dev) @@ -873,10 +782,6 @@ static int r6040_open(struct net_device *dev) napi_enable(&lp->napi); netif_start_queue(dev); - /* set and active a timer process */ - setup_timer(&lp->timer, r6040_timer, (unsigned long) dev); - if (lp->switch_sig != ICPLUS_PHY_ID) - mod_timer(&lp->timer, jiffies + HZ); return 0; } @@ -1015,40 +920,22 @@ static void netdev_get_drvinfo(struct net_device *dev, static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct r6040_private *rp = netdev_priv(dev); - int rc; - - spin_lock_irq(&rp->lock); - rc = mii_ethtool_gset(&rp->mii_if, cmd); - spin_unlock_irq(&rp->lock); - return rc; + return phy_ethtool_gset(rp->phydev, cmd); } static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct r6040_private *rp = netdev_priv(dev); - int rc; - - spin_lock_irq(&rp->lock); - rc = mii_ethtool_sset(&rp->mii_if, cmd); - spin_unlock_irq(&rp->lock); - r6040_set_carrier(&rp->mii_if); - - return rc; -} - -static u32 netdev_get_link(struct net_device *dev) -{ - struct r6040_private *rp = netdev_priv(dev); - return mii_link_ok(&rp->mii_if); + return phy_ethtool_sset(rp->phydev, cmd); } static const struct ethtool_ops netdev_ethtool_ops = { .get_drvinfo = netdev_get_drvinfo, .get_settings = netdev_get_settings, .set_settings = netdev_set_settings, - .get_link = netdev_get_link, + .get_link = ethtool_op_get_link, }; static const struct net_device_ops r6040_netdev_ops = { @@ -1067,6 +954,79 @@ static const struct net_device_ops r6040_netdev_ops = { #endif }; +static void r6040_adjust_link(struct net_device *dev) +{ + struct r6040_private *lp = netdev_priv(dev); + struct phy_device *phydev = lp->phydev; + int status_changed = 0; + void __iomem *ioaddr = lp->base; + + BUG_ON(!phydev); + + if (lp->old_link != phydev->link) { + status_changed = 1; + lp->old_link = phydev->link; + } + + /* reflect duplex change */ + if (phydev->link && (lp->old_duplex != phydev->duplex)) { + lp->mcr0 |= (phydev->duplex == DUPLEX_FULL ? 0x8000 : 0); + iowrite16(lp->mcr0, ioaddr); + + status_changed = 1; + lp->old_duplex = phydev->duplex; + } + + if (status_changed) { + pr_info("%s: link %s", dev->name, phydev->link ? + "UP" : "DOWN"); + if (phydev->link) + pr_cont(" - %d/%s", phydev->speed, + DUPLEX_FULL == phydev->duplex ? "full" : "half"); + pr_cont("\n"); + } +} + +static int r6040_mii_probe(struct net_device *dev) +{ + struct r6040_private *lp = netdev_priv(dev); + struct phy_device *phydev = NULL; + + phydev = phy_find_first(lp->mii_bus); + if (!phydev) { + dev_err(&lp->pdev->dev, "no PHY found\n"); + return -ENODEV; + } + + phydev = phy_connect(dev, dev_name(&phydev->dev), &r6040_adjust_link, + 0, PHY_INTERFACE_MODE_MII); + + if (IS_ERR(phydev)) { + dev_err(&lp->pdev->dev, "could not attach to PHY\n"); + return PTR_ERR(phydev); + } + + /* mask with MAC supported features */ + phydev->supported &= (SUPPORTED_10baseT_Half + | SUPPORTED_10baseT_Full + | SUPPORTED_100baseT_Half + | SUPPORTED_100baseT_Full + | SUPPORTED_Autoneg + | SUPPORTED_MII + | SUPPORTED_TP); + + phydev->advertising = phydev->supported; + lp->phydev = phydev; + lp->old_link = 0; + lp->old_duplex = -1; + + dev_info(&lp->pdev->dev, "attached PHY driver [%s] " + "(mii_bus:phy_addr=%s)\n", + phydev->drv->name, dev_name(&phydev->dev)); + + return 0; +} + static int __devinit r6040_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -1077,6 +1037,7 @@ static int __devinit r6040_init_one(struct pci_dev *pdev, static int card_idx = -1; int bar = 0; u16 *adrp; + int i; printk("%s\n", version); @@ -1163,7 +1124,6 @@ static int __devinit r6040_init_one(struct pci_dev *pdev, /* Init RDC private data */ lp->mcr0 = 0x1002; lp->phy_addr = phy_table[card_idx]; - lp->switch_sig = 0; /* The RDC-specific entries in the device structure. */ dev->netdev_ops = &r6040_netdev_ops; @@ -1171,28 +1131,54 @@ static int __devinit r6040_init_one(struct pci_dev *pdev, dev->watchdog_timeo = TX_TIMEOUT; netif_napi_add(dev, &lp->napi, r6040_poll, 64); - lp->mii_if.dev = dev; - lp->mii_if.mdio_read = r6040_mdio_read; - lp->mii_if.mdio_write = r6040_mdio_write; - lp->mii_if.phy_id = lp->phy_addr; - lp->mii_if.phy_id_mask = 0x1f; - lp->mii_if.reg_num_mask = 0x1f; - - /* Check the vendor ID on the PHY, if 0xffff assume none attached */ - if (r6040_phy_read(ioaddr, lp->phy_addr, 2) == 0xffff) { - dev_err(&pdev->dev, "Failed to detect an attached PHY\n"); - err = -ENODEV; + + lp->mii_bus = mdiobus_alloc(); + if (!lp->mii_bus) { + dev_err(&pdev->dev, "mdiobus_alloc() failed\n"); goto err_out_unmap; } + lp->mii_bus->priv = dev; + lp->mii_bus->read = r6040_mdiobus_read; + lp->mii_bus->write = r6040_mdiobus_write; + lp->mii_bus->reset = r6040_mdiobus_reset; + lp->mii_bus->name = "r6040_eth_mii"; + snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%x", card_idx); + lp->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL); + if (!lp->mii_bus->irq) { + dev_err(&pdev->dev, "mii_bus irq allocation failed\n"); + goto err_out_mdio; + } + + for (i = 0; i < PHY_MAX_ADDR; i++) + lp->mii_bus->irq[i] = PHY_POLL; + + err = mdiobus_register(lp->mii_bus); + if (err) { + dev_err(&pdev->dev, "failed to register MII bus\n"); + goto err_out_mdio_irq; + } + + err = r6040_mii_probe(dev); + if (err) { + dev_err(&pdev->dev, "failed to probe MII bus\n"); + goto err_out_mdio_unregister; + } + /* Register net device. After this dev->name assign */ err = register_netdev(dev); if (err) { dev_err(&pdev->dev, "Failed to register net device\n"); - goto err_out_unmap; + goto err_out_mdio_unregister; } return 0; +err_out_mdio_unregister: + mdiobus_unregister(lp->mii_bus); +err_out_mdio_irq: + kfree(lp->mii_bus->irq); +err_out_mdio: + mdiobus_free(lp->mii_bus); err_out_unmap: pci_iounmap(pdev, ioaddr); err_out_free_res: @@ -1206,8 +1192,12 @@ err_out: static void __devexit r6040_remove_one(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); + struct r6040_private *lp = netdev_priv(dev); unregister_netdev(dev); + mdiobus_unregister(lp->mii_bus); + kfree(lp->mii_bus->irq); + mdiobus_free(lp->mii_bus); pci_release_regions(pdev); free_netdev(dev); pci_disable_device(pdev); |