diff options
Diffstat (limited to 'drivers/net/ethernet/davicom/dm9000.c')
| -rw-r--r-- | drivers/net/ethernet/davicom/dm9000.c | 53 |
1 files changed, 43 insertions, 10 deletions
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c index 9105465b2a1..a13b312b50f 100644 --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -29,6 +29,8 @@ #include <linux/spinlock.h> #include <linux/crc32.h> #include <linux/mii.h> +#include <linux/of.h> +#include <linux/of_net.h> #include <linux/ethtool.h> #include <linux/dm9000.h> #include <linux/delay.h> @@ -827,7 +829,7 @@ dm9000_hash_table_unlocked(struct net_device *dev) struct netdev_hw_addr *ha; int i, oft; u32 hash_val; - u16 hash_table[4]; + u16 hash_table[4] = { 0, 0, 0, 0x8000 }; /* broadcast address */ u8 rcr = RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN; dm9000_dbg(db, 1, "entering %s\n", __func__); @@ -835,13 +837,6 @@ dm9000_hash_table_unlocked(struct net_device *dev) for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++) iow(db, oft, dev->dev_addr[i]); - /* Clear Hash Table */ - for (i = 0; i < 4; i++) - hash_table[i] = 0x0; - - /* broadcast address */ - hash_table[3] = 0x8000; - if (dev->flags & IFF_PROMISC) rcr |= RCR_PRMSC; @@ -1358,6 +1353,31 @@ static const struct net_device_ops dm9000_netdev_ops = { #endif }; +static struct dm9000_plat_data *dm9000_parse_dt(struct device *dev) +{ + struct dm9000_plat_data *pdata; + struct device_node *np = dev->of_node; + const void *mac_addr; + + if (!IS_ENABLED(CONFIG_OF) || !np) + return NULL; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + if (of_find_property(np, "davicom,ext-phy", NULL)) + pdata->flags |= DM9000_PLATF_EXT_PHY; + if (of_find_property(np, "davicom,no-eeprom", NULL)) + pdata->flags |= DM9000_PLATF_NO_EEPROM; + + mac_addr = of_get_mac_address(np); + if (mac_addr) + memcpy(pdata->dev_addr, mac_addr, sizeof(pdata->dev_addr)); + + return pdata; +} + /* * Search DM9000 board, allocate space and register it */ @@ -1373,6 +1393,12 @@ dm9000_probe(struct platform_device *pdev) int i; u32 id_val; + if (!pdata) { + pdata = dm9000_parse_dt(&pdev->dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + /* Init network device */ ndev = alloc_etherdev(sizeof(struct board_info)); if (!ndev) @@ -1673,8 +1699,6 @@ dm9000_drv_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); - unregister_netdev(ndev); dm9000_release_board(pdev, netdev_priv(ndev)); free_netdev(ndev); /* free device structure */ @@ -1683,11 +1707,20 @@ dm9000_drv_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id dm9000_of_matches[] = { + { .compatible = "davicom,dm9000", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, dm9000_of_matches); +#endif + static struct platform_driver dm9000_driver = { .driver = { .name = "dm9000", .owner = THIS_MODULE, .pm = &dm9000_drv_pm_ops, + .of_match_table = of_match_ptr(dm9000_of_matches), }, .probe = dm9000_probe, .remove = dm9000_drv_remove, |