diff options
Diffstat (limited to 'drivers/net/ethernet/cirrus/ep93xx_eth.c')
| -rw-r--r-- | drivers/net/ethernet/cirrus/ep93xx_eth.c | 91 |
1 files changed, 44 insertions, 47 deletions
diff --git a/drivers/net/ethernet/cirrus/ep93xx_eth.c b/drivers/net/ethernet/cirrus/ep93xx_eth.c index 13dfdfca49fc..a4972457edd9 100644 --- a/drivers/net/ethernet/cirrus/ep93xx_eth.c +++ b/drivers/net/ethernet/cirrus/ep93xx_eth.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * EP93xx ethernet network device driver * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org> * Dedicated to Marija Kulikova. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. */ #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__ @@ -20,15 +16,13 @@ #include <linux/ethtool.h> #include <linux/interrupt.h> #include <linux/moduleparam.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/slab.h> -#include <mach/hardware.h> - #define DRV_MODULE_NAME "ep93xx-eth" -#define DRV_MODULE_VERSION "0.1" #define RX_QUEUE_ENTRIES 64 #define TX_QUEUE_ENTRIES 8 @@ -694,8 +688,7 @@ static int ep93xx_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static void ep93xx_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { - strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); - strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version)); + strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver)); } static int ep93xx_get_link_ksettings(struct net_device *dev, @@ -739,38 +732,20 @@ static const struct net_device_ops ep93xx_netdev_ops = { .ndo_open = ep93xx_open, .ndo_stop = ep93xx_close, .ndo_start_xmit = ep93xx_xmit, - .ndo_do_ioctl = ep93xx_ioctl, + .ndo_eth_ioctl = ep93xx_ioctl, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, }; -static struct net_device *ep93xx_dev_alloc(struct ep93xx_eth_data *data) -{ - struct net_device *dev; - - dev = alloc_etherdev(sizeof(struct ep93xx_priv)); - if (dev == NULL) - return NULL; - - memcpy(dev->dev_addr, data->dev_addr, ETH_ALEN); - - dev->ethtool_ops = &ep93xx_ethtool_ops; - dev->netdev_ops = &ep93xx_netdev_ops; - - dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM; - - return dev; -} - - -static int ep93xx_eth_remove(struct platform_device *pdev) +static void ep93xx_eth_remove(struct platform_device *pdev) { struct net_device *dev; struct ep93xx_priv *ep; + struct resource *mem; dev = platform_get_drvdata(pdev); if (dev == NULL) - return 0; + return; ep = netdev_priv(dev); @@ -782,42 +757,62 @@ static int ep93xx_eth_remove(struct platform_device *pdev) iounmap(ep->base_addr); if (ep->res != NULL) { - release_resource(ep->res); - kfree(ep->res); + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(mem->start, resource_size(mem)); } free_netdev(dev); - - return 0; } static int ep93xx_eth_probe(struct platform_device *pdev) { - struct ep93xx_eth_data *data; struct net_device *dev; struct ep93xx_priv *ep; struct resource *mem; + void __iomem *base_addr; + struct device_node *np; + u8 addr[ETH_ALEN]; + u32 phy_id; int irq; int err; if (pdev == NULL) return -ENODEV; - data = dev_get_platdata(&pdev->dev); mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); if (!mem || irq < 0) return -ENXIO; - dev = ep93xx_dev_alloc(data); + base_addr = ioremap(mem->start, resource_size(mem)); + if (!base_addr) + return dev_err_probe(&pdev->dev, -EIO, "Failed to ioremap ethernet registers\n"); + + np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0); + if (!np) + return dev_err_probe(&pdev->dev, -ENODEV, "Please provide \"phy-handle\"\n"); + + err = of_property_read_u32(np, "reg", &phy_id); + of_node_put(np); + if (err) + return dev_err_probe(&pdev->dev, -ENOENT, "Failed to locate \"phy_id\"\n"); + + dev = alloc_etherdev(sizeof(struct ep93xx_priv)); if (dev == NULL) { err = -ENOMEM; goto err_out; } + + memcpy_fromio(addr, base_addr + 0x50, ETH_ALEN); + eth_hw_addr_set(dev, addr); + dev->ethtool_ops = &ep93xx_ethtool_ops; + dev->netdev_ops = &ep93xx_netdev_ops; + dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM; + ep = netdev_priv(dev); ep->dev = dev; SET_NETDEV_DEV(dev, &pdev->dev); - netif_napi_add(dev, &ep->napi, ep93xx_poll, 64); + netif_napi_add(dev, &ep->napi, ep93xx_poll); platform_set_drvdata(pdev, dev); @@ -829,15 +824,10 @@ static int ep93xx_eth_probe(struct platform_device *pdev) goto err_out; } - ep->base_addr = ioremap(mem->start, resource_size(mem)); - if (ep->base_addr == NULL) { - dev_err(&pdev->dev, "Failed to ioremap ethernet registers\n"); - err = -EIO; - goto err_out; - } + ep->base_addr = base_addr; ep->irq = irq; - ep->mii.phy_id = data->phy_id; + ep->mii.phy_id = phy_id; ep->mii.phy_id_mask = 0x1f; ep->mii.reg_num_mask = 0x1f; ep->mii.dev = dev; @@ -864,16 +854,23 @@ err_out: return err; } +static const struct of_device_id ep93xx_eth_of_ids[] = { + { .compatible = "cirrus,ep9301-eth" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ep93xx_eth_of_ids); static struct platform_driver ep93xx_eth_driver = { .probe = ep93xx_eth_probe, .remove = ep93xx_eth_remove, .driver = { .name = "ep93xx-eth", + .of_match_table = ep93xx_eth_of_ids, }, }; module_platform_driver(ep93xx_eth_driver); +MODULE_DESCRIPTION("Cirrus EP93xx Ethernet driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:ep93xx-eth"); |