diff options
Diffstat (limited to 'drivers/net/au1000_eth.c')
| -rw-r--r-- | drivers/net/au1000_eth.c | 441 |
1 files changed, 223 insertions, 218 deletions
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c index a66b06aa1f0b..4da191b87b0d 100644 --- a/drivers/net/au1000_eth.c +++ b/drivers/net/au1000_eth.c @@ -55,6 +55,7 @@ #include <linux/delay.h> #include <linux/crc32.h> #include <linux/phy.h> +#include <linux/platform_device.h> #include <asm/cpu.h> #include <asm/mipsregs.h> @@ -63,6 +64,7 @@ #include <asm/processor.h> #include <au1000.h> +#include <au1xxx_eth.h> #include <prom.h> #include "au1000_eth.h" @@ -112,15 +114,15 @@ struct au1000_private *au_macs[NUM_ETH_INTERFACES]; * * PHY detection algorithm * - * If AU1XXX_PHY_STATIC_CONFIG is undefined, the PHY setup is + * If phy_static_config is undefined, the PHY setup is * autodetected: * * mii_probe() first searches the current MAC's MII bus for a PHY, - * selecting the first (or last, if AU1XXX_PHY_SEARCH_HIGHEST_ADDR is + * selecting the first (or last, if phy_search_highest_addr is * defined) PHY address not already claimed by another netdev. * * If nothing was found that way when searching for the 2nd ethernet - * controller's PHY and AU1XXX_PHY1_SEARCH_ON_MAC0 is defined, then + * controller's PHY and phy1_search_mac0 is defined, then * the first MII bus is searched as well for an unclaimed PHY; this is * needed in case of a dual-PHY accessible only through the MAC0's MII * bus. @@ -129,9 +131,7 @@ struct au1000_private *au_macs[NUM_ETH_INTERFACES]; * controller is not registered to the network subsystem. */ -/* autodetection defaults */ -#undef AU1XXX_PHY_SEARCH_HIGHEST_ADDR -#define AU1XXX_PHY1_SEARCH_ON_MAC0 +/* autodetection defaults: phy1_search_mac0 */ /* static PHY setup * @@ -148,29 +148,6 @@ struct au1000_private *au_macs[NUM_ETH_INTERFACES]; * specific irq-map */ -#if defined(CONFIG_MIPS_BOSPORUS) -/* - * Micrel/Kendin 5 port switch attached to MAC0, - * MAC0 is associated with PHY address 5 (== WAN port) - * MAC1 is not associated with any PHY, since it's connected directly - * to the switch. - * no interrupts are used - */ -# define AU1XXX_PHY_STATIC_CONFIG - -# define AU1XXX_PHY0_ADDR 5 -# define AU1XXX_PHY0_BUSID 0 -# undef AU1XXX_PHY0_IRQ - -# undef AU1XXX_PHY1_ADDR -# undef AU1XXX_PHY1_BUSID -# undef AU1XXX_PHY1_IRQ -#endif - -#if defined(AU1XXX_PHY0_BUSID) && (AU1XXX_PHY0_BUSID > 0) -# error MAC0-associated PHY attached 2nd MACs MII bus not supported yet -#endif - static void enable_mac(struct net_device *dev, int force_reset) { unsigned long flags; @@ -390,67 +367,55 @@ static int mii_probe (struct net_device *dev) struct au1000_private *const aup = netdev_priv(dev); struct phy_device *phydev = NULL; -#if defined(AU1XXX_PHY_STATIC_CONFIG) - BUG_ON(aup->mac_id < 0 || aup->mac_id > 1); + if (aup->phy_static_config) { + BUG_ON(aup->mac_id < 0 || aup->mac_id > 1); - if(aup->mac_id == 0) { /* get PHY0 */ -# if defined(AU1XXX_PHY0_ADDR) - phydev = au_macs[AU1XXX_PHY0_BUSID]->mii_bus->phy_map[AU1XXX_PHY0_ADDR]; -# else - printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n", - dev->name); - return 0; -# endif /* defined(AU1XXX_PHY0_ADDR) */ - } else if (aup->mac_id == 1) { /* get PHY1 */ -# if defined(AU1XXX_PHY1_ADDR) - phydev = au_macs[AU1XXX_PHY1_BUSID]->mii_bus->phy_map[AU1XXX_PHY1_ADDR]; -# else - printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n", - dev->name); + if (aup->phy_addr) + phydev = aup->mii_bus->phy_map[aup->phy_addr]; + else + printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n", + dev->name); return 0; -# endif /* defined(AU1XXX_PHY1_ADDR) */ - } - -#else /* defined(AU1XXX_PHY_STATIC_CONFIG) */ - int phy_addr; - - /* find the first (lowest address) PHY on the current MAC's MII bus */ - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) - if (aup->mii_bus->phy_map[phy_addr]) { - phydev = aup->mii_bus->phy_map[phy_addr]; -# if !defined(AU1XXX_PHY_SEARCH_HIGHEST_ADDR) - break; /* break out with first one found */ -# endif - } + } else { + int phy_addr; + + /* find the first (lowest address) PHY on the current MAC's MII bus */ + for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) + if (aup->mii_bus->phy_map[phy_addr]) { + phydev = aup->mii_bus->phy_map[phy_addr]; + if (!aup->phy_search_highest_addr) + break; /* break out with first one found */ + } -# if defined(AU1XXX_PHY1_SEARCH_ON_MAC0) - /* try harder to find a PHY */ - if (!phydev && (aup->mac_id == 1)) { - /* no PHY found, maybe we have a dual PHY? */ - printk (KERN_INFO DRV_NAME ": no PHY found on MAC1, " - "let's see if it's attached to MAC0...\n"); + if (aup->phy1_search_mac0) { + /* try harder to find a PHY */ + if (!phydev && (aup->mac_id == 1)) { + /* no PHY found, maybe we have a dual PHY? */ + printk (KERN_INFO DRV_NAME ": no PHY found on MAC1, " + "let's see if it's attached to MAC0...\n"); - BUG_ON(!au_macs[0]); + /* find the first (lowest address) non-attached PHY on + * the MAC0 MII bus */ + for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { + struct phy_device *const tmp_phydev = + aup->mii_bus->phy_map[phy_addr]; - /* find the first (lowest address) non-attached PHY on - * the MAC0 MII bus */ - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { - struct phy_device *const tmp_phydev = - au_macs[0]->mii_bus->phy_map[phy_addr]; + if (aup->mac_id == 1) + break; - if (!tmp_phydev) - continue; /* no PHY here... */ + if (!tmp_phydev) + continue; /* no PHY here... */ - if (tmp_phydev->attached_dev) - continue; /* already claimed by MAC0 */ + if (tmp_phydev->attached_dev) + continue; /* already claimed by MAC0 */ - phydev = tmp_phydev; - break; /* found it */ + phydev = tmp_phydev; + break; /* found it */ + } + } } } -# endif /* defined(AU1XXX_PHY1_SEARCH_OTHER_BUS) */ -#endif /* defined(AU1XXX_PHY_STATIC_CONFIG) */ if (!phydev) { printk (KERN_ERR DRV_NAME ":%s: no PHY found\n", dev->name); return -1; @@ -578,31 +543,6 @@ setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base) } } -static struct { - u32 base_addr; - u32 macen_addr; - int irq; - struct net_device *dev; -} iflist[2] = { -#ifdef CONFIG_SOC_AU1000 - {AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT}, - {AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT} -#endif -#ifdef CONFIG_SOC_AU1100 - {AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT} -#endif -#ifdef CONFIG_SOC_AU1500 - {AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT}, - {AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT} -#endif -#ifdef CONFIG_SOC_AU1550 - {AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT}, - {AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT} -#endif -}; - -static int num_ifs; - /* * ethtool operations */ @@ -711,7 +651,6 @@ static int au1000_init(struct net_device *dev) static inline void update_rx_stats(struct net_device *dev, u32 status) { - struct au1000_private *aup = netdev_priv(dev); struct net_device_stats *ps = &dev->stats; ps->rx_packets++; @@ -969,7 +908,7 @@ static netdev_tx_t au1000_tx(struct sk_buff *skb, struct net_device *dev) } pDB = aup->tx_db_inuse[aup->tx_head]; - skb_copy_from_linear_data(skb, pDB->vaddr, skb->len); + skb_copy_from_linear_data(skb, (void *)pDB->vaddr, skb->len); if (skb->len < ETH_ZLEN) { for (i=skb->len; i<ETH_ZLEN; i++) { ((char *)pDB->vaddr)[i] = 0; @@ -1055,53 +994,59 @@ static const struct net_device_ops au1000_netdev_ops = { .ndo_change_mtu = eth_change_mtu, }; -static struct net_device * au1000_probe(int port_num) +static int __devinit au1000_probe(struct platform_device *pdev) { static unsigned version_printed = 0; struct au1000_private *aup = NULL; + struct au1000_eth_platform_data *pd; struct net_device *dev = NULL; db_dest_t *pDB, *pDBfree; + int irq, i, err = 0; + struct resource *base, *macen; char ethaddr[6]; - int irq, i, err; - u32 base, macen; - if (port_num >= NUM_ETH_INTERFACES) - return NULL; + base = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!base) { + printk(KERN_ERR DRV_NAME ": failed to retrieve base register\n"); + err = -ENODEV; + goto out; + } - base = CPHYSADDR(iflist[port_num].base_addr ); - macen = CPHYSADDR(iflist[port_num].macen_addr); - irq = iflist[port_num].irq; + macen = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!macen) { + printk(KERN_ERR DRV_NAME ": failed to retrieve MAC Enable register\n"); + err = -ENODEV; + goto out; + } - if (!request_mem_region( base, MAC_IOSIZE, "Au1x00 ENET") || - !request_mem_region(macen, 4, "Au1x00 ENET")) - return NULL; + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + printk(KERN_ERR DRV_NAME ": failed to retrieve IRQ\n"); + err = -ENODEV; + goto out; + } - if (version_printed++ == 0) - printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR); + if (!request_mem_region(base->start, resource_size(base), pdev->name)) { + printk(KERN_ERR DRV_NAME ": failed to request memory region for base registers\n"); + err = -ENXIO; + goto out; + } + + if (!request_mem_region(macen->start, resource_size(macen), pdev->name)) { + printk(KERN_ERR DRV_NAME ": failed to request memory region for MAC enable register\n"); + err = -ENXIO; + goto err_request; + } dev = alloc_etherdev(sizeof(struct au1000_private)); if (!dev) { printk(KERN_ERR "%s: alloc_etherdev failed\n", DRV_NAME); - return NULL; + err = -ENOMEM; + goto err_alloc; } - dev->base_addr = base; - dev->irq = irq; - dev->netdev_ops = &au1000_netdev_ops; - SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops); - dev->watchdog_timeo = ETH_TX_TIMEOUT; - - err = register_netdev(dev); - if (err != 0) { - printk(KERN_ERR "%s: Cannot register net device, error %d\n", - DRV_NAME, err); - free_netdev(dev); - return NULL; - } - - printk("%s: Au1xx0 Ethernet found at 0x%x, irq %d\n", - dev->name, base, irq); - + SET_NETDEV_DEV(dev, &pdev->dev); + platform_set_drvdata(pdev, dev); aup = netdev_priv(dev); spin_lock_init(&aup->lock); @@ -1112,21 +1057,29 @@ static struct net_device * au1000_probe(int port_num) (NUM_TX_BUFFS + NUM_RX_BUFFS), &aup->dma_addr, 0); if (!aup->vaddr) { - free_netdev(dev); - release_mem_region( base, MAC_IOSIZE); - release_mem_region(macen, 4); - return NULL; + printk(KERN_ERR DRV_NAME ": failed to allocate data buffers\n"); + err = -ENOMEM; + goto err_vaddr; } /* aup->mac is the base address of the MAC's registers */ - aup->mac = (volatile mac_reg_t *)iflist[port_num].base_addr; + aup->mac = (volatile mac_reg_t *)ioremap_nocache(base->start, resource_size(base)); + if (!aup->mac) { + printk(KERN_ERR DRV_NAME ": failed to ioremap MAC registers\n"); + err = -ENXIO; + goto err_remap1; + } - /* Setup some variables for quick register address access */ - aup->enable = (volatile u32 *)iflist[port_num].macen_addr; - aup->mac_id = port_num; - au_macs[port_num] = aup; + /* Setup some variables for quick register address access */ + aup->enable = (volatile u32 *)ioremap_nocache(macen->start, resource_size(macen)); + if (!aup->enable) { + printk(KERN_ERR DRV_NAME ": failed to ioremap MAC enable register\n"); + err = -ENXIO; + goto err_remap2; + } + aup->mac_id = pdev->id; - if (port_num == 0) { + if (pdev->id == 0) { if (prom_get_ethernet_addr(ethaddr) == 0) memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr)); else { @@ -1136,7 +1089,7 @@ static struct net_device * au1000_probe(int port_num) } setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR); - } else if (port_num == 1) + } else if (pdev->id == 1) setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR); /* @@ -1144,14 +1097,37 @@ static struct net_device * au1000_probe(int port_num) * to match those that are printed on their stickers */ memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr)); - dev->dev_addr[5] += port_num; + dev->dev_addr[5] += pdev->id; *aup->enable = 0; aup->mac_enabled = 0; + pd = pdev->dev.platform_data; + if (!pd) { + printk(KERN_INFO DRV_NAME ": no platform_data passed, PHY search on MAC0\n"); + aup->phy1_search_mac0 = 1; + } else { + aup->phy_static_config = pd->phy_static_config; + aup->phy_search_highest_addr = pd->phy_search_highest_addr; + aup->phy1_search_mac0 = pd->phy1_search_mac0; + aup->phy_addr = pd->phy_addr; + aup->phy_busid = pd->phy_busid; + aup->phy_irq = pd->phy_irq; + } + + if (aup->phy_busid && aup->phy_busid > 0) { + printk(KERN_ERR DRV_NAME ": MAC0-associated PHY attached 2nd MACs MII" + "bus not supported yet\n"); + err = -ENODEV; + goto err_mdiobus_alloc; + } + aup->mii_bus = mdiobus_alloc(); - if (aup->mii_bus == NULL) - goto err_out; + if (aup->mii_bus == NULL) { + printk(KERN_ERR DRV_NAME ": failed to allocate mdiobus structure\n"); + err = -ENOMEM; + goto err_mdiobus_alloc; + } aup->mii_bus->priv = dev; aup->mii_bus->read = au1000_mdiobus_read; @@ -1165,23 +1141,19 @@ static struct net_device * au1000_probe(int port_num) for(i = 0; i < PHY_MAX_ADDR; ++i) aup->mii_bus->irq[i] = PHY_POLL; - /* if known, set corresponding PHY IRQs */ -#if defined(AU1XXX_PHY_STATIC_CONFIG) -# if defined(AU1XXX_PHY0_IRQ) - if (AU1XXX_PHY0_BUSID == aup->mac_id) - aup->mii_bus->irq[AU1XXX_PHY0_ADDR] = AU1XXX_PHY0_IRQ; -# endif -# if defined(AU1XXX_PHY1_IRQ) - if (AU1XXX_PHY1_BUSID == aup->mac_id) - aup->mii_bus->irq[AU1XXX_PHY1_ADDR] = AU1XXX_PHY1_IRQ; -# endif -#endif - mdiobus_register(aup->mii_bus); + if (aup->phy_static_config) + if (aup->phy_irq && aup->phy_busid == aup->mac_id) + aup->mii_bus->irq[aup->phy_addr] = aup->phy_irq; + + err = mdiobus_register(aup->mii_bus); + if (err) { + printk(KERN_ERR DRV_NAME " failed to register MDIO bus\n"); + goto err_mdiobus_reg; + } - if (mii_probe(dev) != 0) { + if (mii_probe(dev) != 0) goto err_out; - } pDBfree = NULL; /* setup the data buffer descriptors and attach a buffer to each one */ @@ -1213,19 +1185,35 @@ static struct net_device * au1000_probe(int port_num) aup->tx_db_inuse[i] = pDB; } + dev->base_addr = base->start; + dev->irq = irq; + dev->netdev_ops = &au1000_netdev_ops; + SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops); + dev->watchdog_timeo = ETH_TX_TIMEOUT; + /* * The boot code uses the ethernet controller, so reset it to start * fresh. au1000_init() expects that the device is in reset state. */ reset_mac(dev); - return dev; + err = register_netdev(dev); + if (err) { + printk(KERN_ERR DRV_NAME "%s: Cannot register net device, aborting.\n", + dev->name); + goto err_out; + } + + printk("%s: Au1xx0 Ethernet found at 0x%lx, irq %d\n", + dev->name, (unsigned long)base->start, irq); + if (version_printed++ == 0) + printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR); + + return 0; err_out: - if (aup->mii_bus != NULL) { + if (aup->mii_bus != NULL) mdiobus_unregister(aup->mii_bus); - mdiobus_free(aup->mii_bus); - } /* here we should have a valid dev plus aup-> register addresses * so we can reset the mac properly.*/ @@ -1239,67 +1227,84 @@ err_out: if (aup->tx_db_inuse[i]) ReleaseDB(aup, aup->tx_db_inuse[i]); } +err_mdiobus_reg: + mdiobus_free(aup->mii_bus); +err_mdiobus_alloc: + iounmap(aup->enable); +err_remap2: + iounmap(aup->mac); +err_remap1: dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS), (void *)aup->vaddr, aup->dma_addr); - unregister_netdev(dev); +err_vaddr: free_netdev(dev); - release_mem_region( base, MAC_IOSIZE); - release_mem_region(macen, 4); - return NULL; +err_alloc: + release_mem_region(macen->start, resource_size(macen)); +err_request: + release_mem_region(base->start, resource_size(base)); +out: + return err; } -/* - * Setup the base address and interrupt of the Au1xxx ethernet macs - * based on cpu type and whether the interface is enabled in sys_pinfunc - * register. The last interface is enabled if SYS_PF_NI2 (bit 4) is 0. - */ -static int __init au1000_init_module(void) +static int __devexit au1000_remove(struct platform_device *pdev) { - int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4); - struct net_device *dev; - int i, found_one = 0; + struct net_device *dev = platform_get_drvdata(pdev); + struct au1000_private *aup = netdev_priv(dev); + int i; + struct resource *base, *macen; - num_ifs = NUM_ETH_INTERFACES - ni; + platform_set_drvdata(pdev, NULL); + + unregister_netdev(dev); + mdiobus_unregister(aup->mii_bus); + mdiobus_free(aup->mii_bus); + + for (i = 0; i < NUM_RX_DMA; i++) + if (aup->rx_db_inuse[i]) + ReleaseDB(aup, aup->rx_db_inuse[i]); + + for (i = 0; i < NUM_TX_DMA; i++) + if (aup->tx_db_inuse[i]) + ReleaseDB(aup, aup->tx_db_inuse[i]); + + dma_free_noncoherent(NULL, MAX_BUF_SIZE * + (NUM_TX_BUFFS + NUM_RX_BUFFS), + (void *)aup->vaddr, aup->dma_addr); + + iounmap(aup->mac); + iounmap(aup->enable); + + base = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(base->start, resource_size(base)); + + macen = platform_get_resource(pdev, IORESOURCE_MEM, 1); + release_mem_region(macen->start, resource_size(macen)); + + free_netdev(dev); - for(i = 0; i < num_ifs; i++) { - dev = au1000_probe(i); - iflist[i].dev = dev; - if (dev) - found_one++; - } - if (!found_one) - return -ENODEV; return 0; } -static void __exit au1000_cleanup_module(void) +static struct platform_driver au1000_eth_driver = { + .probe = au1000_probe, + .remove = __devexit_p(au1000_remove), + .driver = { + .name = "au1000-eth", + .owner = THIS_MODULE, + }, +}; +MODULE_ALIAS("platform:au1000-eth"); + + +static int __init au1000_init_module(void) +{ + return platform_driver_register(&au1000_eth_driver); +} + +static void __exit au1000_exit_module(void) { - int i, j; - struct net_device *dev; - struct au1000_private *aup; - - for (i = 0; i < num_ifs; i++) { - dev = iflist[i].dev; - if (dev) { - aup = netdev_priv(dev); - unregister_netdev(dev); - mdiobus_unregister(aup->mii_bus); - mdiobus_free(aup->mii_bus); - for (j = 0; j < NUM_RX_DMA; j++) - if (aup->rx_db_inuse[j]) - ReleaseDB(aup, aup->rx_db_inuse[j]); - for (j = 0; j < NUM_TX_DMA; j++) - if (aup->tx_db_inuse[j]) - ReleaseDB(aup, aup->tx_db_inuse[j]); - dma_free_noncoherent(NULL, MAX_BUF_SIZE * - (NUM_TX_BUFFS + NUM_RX_BUFFS), - (void *)aup->vaddr, aup->dma_addr); - release_mem_region(dev->base_addr, MAC_IOSIZE); - release_mem_region(CPHYSADDR(iflist[i].macen_addr), 4); - free_netdev(dev); - } - } + platform_driver_unregister(&au1000_eth_driver); } module_init(au1000_init_module); -module_exit(au1000_cleanup_module); +module_exit(au1000_exit_module); |