diff options
Diffstat (limited to 'drivers/net/ks8842.c')
| -rw-r--r-- | drivers/net/ks8842.c | 61 |
1 files changed, 46 insertions, 15 deletions
diff --git a/drivers/net/ks8842.c b/drivers/net/ks8842.c index 5c45cb5..f852ab3 100644 --- a/drivers/net/ks8842.c +++ b/drivers/net/ks8842.c @@ -1,5 +1,5 @@ /* - * ks8842_main.c timberdale KS8842 ethernet driver + * ks8842.c timberdale KS8842 ethernet driver * Copyright (c) 2009 Intel Corporation * * This program is free software; you can redistribute it and/or modify @@ -20,12 +20,15 @@ * The Micrel KS8842 behind the timberdale FPGA */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> +#include <linux/ks8842.h> #define DRV_NAME "ks8842" @@ -302,6 +305,20 @@ static void ks8842_read_mac_addr(struct ks8842_adapter *adapter, u8 *dest) ks8842_write16(adapter, 39, mac, REG_MACAR3); } +static void ks8842_write_mac_addr(struct ks8842_adapter *adapter, u8 *mac) +{ + unsigned long flags; + unsigned i; + + spin_lock_irqsave(&adapter->lock, flags); + for (i = 0; i < ETH_ALEN; i++) { + ks8842_write8(adapter, 2, mac[ETH_ALEN - i - 1], REG_MARL + i); + ks8842_write8(adapter, 39, mac[ETH_ALEN - i - 1], + REG_MACAR1 + i); + } + spin_unlock_irqrestore(&adapter->lock, flags); +} + static inline u16 ks8842_tx_fifo_space(struct ks8842_adapter *adapter) { return ks8842_read16(adapter, 16, REG_TXMIR) & 0x1fff; @@ -520,13 +537,14 @@ static int ks8842_open(struct net_device *netdev) /* reset the HW */ ks8842_reset_hw(adapter); + ks8842_write_mac_addr(adapter, netdev->dev_addr); + ks8842_update_link_status(netdev, adapter); err = request_irq(adapter->irq, ks8842_irq, IRQF_SHARED, DRV_NAME, adapter); if (err) { - printk(KERN_ERR "Failed to request IRQ: %d: %d\n", - adapter->irq, err); + pr_err("Failed to request IRQ: %d: %d\n", adapter->irq, err); return err; } @@ -567,10 +585,8 @@ static netdev_tx_t ks8842_xmit_frame(struct sk_buff *skb, static int ks8842_set_mac(struct net_device *netdev, void *p) { struct ks8842_adapter *adapter = netdev_priv(netdev); - unsigned long flags; struct sockaddr *addr = p; char *mac = (u8 *)addr->sa_data; - int i; dev_dbg(&adapter->pdev->dev, "%s: entry\n", __func__); @@ -579,13 +595,7 @@ static int ks8842_set_mac(struct net_device *netdev, void *p) memcpy(netdev->dev_addr, mac, netdev->addr_len); - spin_lock_irqsave(&adapter->lock, flags); - for (i = 0; i < ETH_ALEN; i++) { - ks8842_write8(adapter, 2, mac[ETH_ALEN - i - 1], REG_MARL + i); - ks8842_write8(adapter, 39, mac[ETH_ALEN - i - 1], - REG_MACAR1 + i); - } - spin_unlock_irqrestore(&adapter->lock, flags); + ks8842_write_mac_addr(adapter, mac); return 0; } @@ -604,6 +614,8 @@ static void ks8842_tx_timeout(struct net_device *netdev) ks8842_reset_hw(adapter); + ks8842_write_mac_addr(adapter, netdev->dev_addr); + ks8842_update_link_status(netdev, adapter); } @@ -626,7 +638,9 @@ static int __devinit ks8842_probe(struct platform_device *pdev) struct resource *iomem; struct net_device *netdev; struct ks8842_adapter *adapter; + struct ks8842_platform_data *pdata = pdev->dev.platform_data; u16 id; + unsigned i; iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!request_mem_region(iomem->start, resource_size(iomem), DRV_NAME)) @@ -657,7 +671,25 @@ static int __devinit ks8842_probe(struct platform_device *pdev) netdev->netdev_ops = &ks8842_netdev_ops; netdev->ethtool_ops = &ks8842_ethtool_ops; - ks8842_read_mac_addr(adapter, netdev->dev_addr); + /* Check if a mac address was given */ + i = netdev->addr_len; + if (pdata) { + for (i = 0; i < netdev->addr_len; i++) + if (pdata->macaddr[i] != 0) + break; + + if (i < netdev->addr_len) + /* an address was passed, use it */ + memcpy(netdev->dev_addr, pdata->macaddr, + netdev->addr_len); + } + + if (i == netdev->addr_len) { + ks8842_read_mac_addr(adapter, netdev->dev_addr); + + if (!is_valid_ether_addr(netdev->dev_addr)) + random_ether_addr(netdev->dev_addr); + } id = ks8842_read16(adapter, 32, REG_SW_ID_AND_ENABLE); @@ -668,8 +700,7 @@ static int __devinit ks8842_probe(struct platform_device *pdev) platform_set_drvdata(pdev, netdev); - printk(KERN_INFO DRV_NAME - " Found chip, family: 0x%x, id: 0x%x, rev: 0x%x\n", + pr_info("Found chip, family: 0x%x, id: 0x%x, rev: 0x%x\n", (id >> 8) & 0xff, (id >> 4) & 0xf, (id >> 1) & 0x7); return 0; |