mv643xx_eth: general cleanup

General cleanup of the mv643xx_eth driver.  Mainly fixes coding
style / indentation issues, get rid of some useless 'volatile's,
kill some more superfluous comments, and such.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>

1 files changed, 438 insertions, 511 deletions

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index ff6460124307..cf18419f96ab 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -67,8 +67,6 @@ static char mv643xx_eth_driver_version[] = "1.0";
 #define MAX_DESCS_PER_SKB       1
 #endif
 
-#define ETH_HW_IP_ALIGN         2
-
 /*
  * Registers shared between all ports.
  */
@@ -158,12 +156,6 @@ static char mv643xx_eth_driver_version[] = "1.0";
 #define DEFAULT_RX_QUEUE_SIZE           400
 #define DEFAULT_TX_QUEUE_SIZE           800
 
-/* SMI reg */
-#define SMI_BUSY                0x10000000      /* 0 - Write, 1 - Read  */
-#define SMI_READ_VALID          0x08000000      /* 0 - Write, 1 - Read  */
-#define SMI_OPCODE_WRITE        0               /* Completion of Read   */
-#define SMI_OPCODE_READ         0x04000000      /* Operation is in progress */
-
 
 /*
  * RX/TX descriptors.
@@ -231,13 +223,24 @@ struct tx_desc {
 
 /* global *******************************************************************/
 struct mv643xx_eth_shared_private {
+        /*
+         * Ethernet controller base address.
+         */
         void __iomem *base;
 
-        /* used to protect SMI_REG, which is shared across ports */
+        /*
+         * Protects access to SMI_REG, which is shared between ports.
+         */
         spinlock_t phy_lock;
 
+        /*
+         * Per-port MBUS window access register value.
+         */
         u32 win_protect;
 
+        /*
+         * Hardware-specific parameters.
+         */
         unsigned int t_clk;
 };
 
@@ -306,16 +309,17 @@ struct tx_queue {
 
 struct mv643xx_eth_private {
         struct mv643xx_eth_shared_private *shared;
-        int port_num;                   /* User Ethernet port number    */
+        int port_num;
 
-        struct mv643xx_eth_shared_private *shared_smi;
+        struct net_device *dev;
 
-        struct work_struct tx_timeout_task;
+        struct mv643xx_eth_shared_private *shared_smi;
+        int phy_addr;
 
-        struct net_device *dev;
-        struct mib_counters mib_counters;
         spinlock_t lock;
 
+        struct mib_counters mib_counters;
+        struct work_struct tx_timeout_task;
         struct mii_if_info mii;
 
         /*
@@ -450,7 +454,12 @@ static void rxq_refill(struct rx_queue *rxq)
                                                 RX_ENABLE_INTERRUPT;
                 wmb();
 
-                skb_reserve(skb, ETH_HW_IP_ALIGN);
+                /*
+                 * The hardware automatically prepends 2 bytes of
+                 * dummy data to each received packet, so that the
+                 * IP header ends up 16-byte aligned.
+                 */
+                skb_reserve(skb, 2);
         }
 
         if (rxq->rx_desc_count == 0) {
@@ -474,9 +483,9 @@ static int rxq_process(struct rx_queue *rxq, int budget)
 
         rx = 0;
         while (rx < budget) {
-                struct sk_buff *skb;
-                volatile struct rx_desc *rx_desc;
+                struct rx_desc *rx_desc;
                 unsigned int cmd_sts;
+                struct sk_buff *skb;
                 unsigned long flags;
 
                 spin_lock_irqsave(&mp->lock, flags);
@@ -497,34 +506,40 @@ static int rxq_process(struct rx_queue *rxq, int budget)
 
                 spin_unlock_irqrestore(&mp->lock, flags);
 
-                dma_unmap_single(NULL, rx_desc->buf_ptr + ETH_HW_IP_ALIGN,
-                                        mp->dev->mtu + 24, DMA_FROM_DEVICE);
+                dma_unmap_single(NULL, rx_desc->buf_ptr + 2,
+                                 mp->dev->mtu + 24, DMA_FROM_DEVICE);
                 rxq->rx_desc_count--;
                 rx++;
 
                 /*
                  * Update statistics.
-                 * Note byte count includes 4 byte CRC count
+                 *
+                 * Note that the descriptor byte count includes 2 dummy
+                 * bytes automatically inserted by the hardware at the
+                 * start of the packet (which we don't count), and a 4
+                 * byte CRC at the end of the packet (which we do count).
                  */
                 stats->rx_packets++;
-                stats->rx_bytes += rx_desc->byte_cnt - ETH_HW_IP_ALIGN;
+                stats->rx_bytes += rx_desc->byte_cnt - 2;
 
                 /*
-                 * In case received a packet without first / last bits on OR
-                 * the error summary bit is on, the packets needs to be dropeed.
+                 * In case we received a packet without first / last bits
+                 * on, or the error summary bit is set, the packet needs
+                 * to be dropped.
                  */
                 if (((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
                                         (RX_FIRST_DESC | RX_LAST_DESC))
                                 || (cmd_sts & ERROR_SUMMARY)) {
                         stats->rx_dropped++;
+
                         if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) !=
                                 (RX_FIRST_DESC | RX_LAST_DESC)) {
                                 if (net_ratelimit())
-                                        printk(KERN_ERR
-                                                "%s: Received packet spread "
-                                                "on multiple descriptors\n",
-                                                mp->dev->name);
+                                        dev_printk(KERN_ERR, &mp->dev->dev,
+                                                   "received packet spanning "
+                                                   "multiple descriptors\n");
                         }
+
                         if (cmd_sts & ERROR_SUMMARY)
                                 stats->rx_errors++;
 
@@ -534,7 +549,7 @@ static int rxq_process(struct rx_queue *rxq, int budget)
                          * The -4 is for the CRC in the trailer of the
                          * received packet
                          */
-                        skb_put(skb, rx_desc->byte_cnt - ETH_HW_IP_ALIGN - 4);
+                        skb_put(skb, rx_desc->byte_cnt - 2 - 4);
 
                         if (cmd_sts & LAYER_4_CHECKSUM_OK) {
                                 skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -548,8 +563,10 @@ static int rxq_process(struct rx_queue *rxq, int budget)
                         netif_rx(skb);
 #endif
                 }
+
                 mp->dev->last_rx = jiffies;
         }
+
         rxq_refill(rxq);
 
         return rx;
@@ -716,7 +733,7 @@ static void txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb)
         txq->tx_desc_count += nr_frags + 1;
 }
 
-static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
         struct net_device_stats *stats = &dev->stats;
@@ -727,8 +744,9 @@ static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) {
                 stats->tx_dropped++;
-                printk(KERN_DEBUG "%s: failed to linearize tiny "
-                                "unaligned fragment\n", dev->name);
+                dev_printk(KERN_DEBUG, &dev->dev,
+                           "failed to linearize skb with tiny "
+                           "unaligned fragment\n");
                 return NETDEV_TX_BUSY;
         }
 
@@ -758,13 +776,15 @@ static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 
 /* mii management interface *************************************************/
-static int phy_addr_get(struct mv643xx_eth_private *mp);
+#define SMI_BUSY                0x10000000
+#define SMI_READ_VALID          0x08000000
+#define SMI_OPCODE_READ         0x04000000
+#define SMI_OPCODE_WRITE        0x00000000
 
-static void read_smi_reg(struct mv643xx_eth_private *mp,
-                                unsigned int phy_reg, unsigned int *value)
+static void smi_reg_read(struct mv643xx_eth_private *mp, unsigned int addr,
+                         unsigned int reg, unsigned int *value)
 {
         void __iomem *smi_reg = mp->shared_smi->base + SMI_REG;
-        int phy_addr = phy_addr_get(mp);
         unsigned long flags;
         int i;
 
@@ -780,7 +800,7 @@ static void read_smi_reg(struct mv643xx_eth_private *mp,
                 udelay(10);
         }
 
-        writel((phy_addr << 16) | (phy_reg << 21) | SMI_OPCODE_READ, smi_reg);
+        writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg);
 
         /* now wait for the data to be valid */
         for (i = 0; !(readl(smi_reg) & SMI_READ_VALID); i++) {
@@ -796,11 +816,11 @@ out:
         spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags);
 }
 
-static void write_smi_reg(struct mv643xx_eth_private *mp,
-                                   unsigned int phy_reg, unsigned int value)
+static void smi_reg_write(struct mv643xx_eth_private *mp,
+                          unsigned int addr,
+                          unsigned int reg, unsigned int value)
 {
         void __iomem *smi_reg = mp->shared_smi->base + SMI_REG;
-        int phy_addr = phy_addr_get(mp);
         unsigned long flags;
         int i;
 
@@ -816,65 +836,63 @@ static void write_smi_reg(struct mv643xx_eth_private *mp,
                 udelay(10);
         }
 
-        writel((phy_addr << 16) | (phy_reg << 21) |
-                SMI_OPCODE_WRITE | (value & 0xffff), smi_reg);
+        writel(SMI_OPCODE_WRITE | (reg << 21) |
+                (addr << 16) | (value & 0xffff), smi_reg);
 out:
         spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags);
 }
 
 
 /* mib counters *************************************************************/
-static void clear_mib_counters(struct mv643xx_eth_private *mp)
+static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset)
 {
-        unsigned int port_num = mp->port_num;
-        int i;
-
-        /* Perform dummy reads from MIB counters */
-        for (i = 0; i < 0x80; i += 4)
-                rdl(mp, MIB_COUNTERS(port_num) + i);
+        return rdl(mp, MIB_COUNTERS(mp->port_num) + offset);
 }
 
-static inline u32 read_mib(struct mv643xx_eth_private *mp, int offset)
+static void mib_counters_clear(struct mv643xx_eth_private *mp)
 {
-        return rdl(mp, MIB_COUNTERS(mp->port_num) + offset);
+        int i;
+
+        for (i = 0; i < 0x80; i += 4)
+                mib_read(mp, i);
 }
 
-static void update_mib_counters(struct mv643xx_eth_private *mp)
+static void mib_counters_update(struct mv643xx_eth_private *mp)
 {
         struct mib_counters *p = &mp->mib_counters;
 
-        p->good_octets_received += read_mib(mp, 0x00);
-        p->good_octets_received += (u64)read_mib(mp, 0x04) << 32;
-        p->bad_octets_received += read_mib(mp, 0x08);
-        p->internal_mac_transmit_err += read_mib(mp, 0x0c);
-        p->good_frames_received += read_mib(mp, 0x10);
-        p->bad_frames_received += read_mib(mp, 0x14);
-        p->broadcast_frames_received += read_mib(mp, 0x18);
-        p->multicast_frames_received += read_mib(mp, 0x1c);
-        p->frames_64_octets += read_mib(mp, 0x20);
-        p->frames_65_to_127_octets += read_mib(mp, 0x24);
-        p->frames_128_to_255_octets += read_mib(mp, 0x28);
-        p->frames_256_to_511_octets += read_mib(mp, 0x2c);
-        p->frames_512_to_1023_octets += read_mib(mp, 0x30);
-        p->frames_1024_to_max_octets += read_mib(mp, 0x34);
-        p->good_octets_sent += read_mib(mp, 0x38);
-        p->good_octets_sent += (u64)read_mib(mp, 0x3c) << 32;
-        p->good_frames_sent += read_mib(mp, 0x40);
-        p->excessive_collision += read_mib(mp, 0x44);
-        p->multicast_frames_sent += read_mib(mp, 0x48);
-        p->broadcast_frames_sent += read_mib(mp, 0x4c);
-        p->unrec_mac_control_received += read_mib(mp, 0x50);
-        p->fc_sent += read_mib(mp, 0x54);
-        p->good_fc_received += read_mib(mp, 0x58);
-        p->bad_fc_received += read_mib(mp, 0x5c);
-        p->undersize_received += read_mib(mp, 0x60);
-        p->fragments_received += read_mib(mp, 0x64);
-        p->oversize_received += read_mib(mp, 0x68);
-        p->jabber_received += read_mib(mp, 0x6c);
-        p->mac_receive_error += read_mib(mp, 0x70);
-        p->bad_crc_event += read_mib(mp, 0x74);
-        p->collision += read_mib(mp, 0x78);
-        p->late_collision += read_mib(mp, 0x7c);
+        p->good_octets_received += mib_read(mp, 0x00);
+        p->good_octets_received += (u64)mib_read(mp, 0x04) << 32;
+        p->bad_octets_received += mib_read(mp, 0x08);
+        p->internal_mac_transmit_err += mib_read(mp, 0x0c);
+        p->good_frames_received += mib_read(mp, 0x10);
+        p->bad_frames_received += mib_read(mp, 0x14);
+        p->broadcast_frames_received += mib_read(mp, 0x18);
+        p->multicast_frames_received += mib_read(mp, 0x1c);
+        p->frames_64_octets += mib_read(mp, 0x20);
+        p->frames_65_to_127_octets += mib_read(mp, 0x24);
+        p->frames_128_to_255_octets += mib_read(mp, 0x28);
+        p->frames_256_to_511_octets += mib_read(mp, 0x2c);
+        p->frames_512_to_1023_octets += mib_read(mp, 0x30);
+        p->frames_1024_to_max_octets += mib_read(mp, 0x34);
+        p->good_octets_sent += mib_read(mp, 0x38);
+        p->good_octets_sent += (u64)mib_read(mp, 0x3c) << 32;
+        p->good_frames_sent += mib_read(mp, 0x40);
+        p->excessive_collision += mib_read(mp, 0x44);
+        p->multicast_frames_sent += mib_read(mp, 0x48);
+        p->broadcast_frames_sent += mib_read(mp, 0x4c);
+        p->unrec_mac_control_received += mib_read(mp, 0x50);
+        p->fc_sent += mib_read(mp, 0x54);
+        p->good_fc_received += mib_read(mp, 0x58);
+        p->bad_fc_received += mib_read(mp, 0x5c);
+        p->undersize_received += mib_read(mp, 0x60);
+        p->fragments_received += mib_read(mp, 0x64);
+        p->oversize_received += mib_read(mp, 0x68);
+        p->jabber_received += mib_read(mp, 0x6c);
+        p->mac_receive_error += mib_read(mp, 0x70);
+        p->bad_crc_event += mib_read(mp, 0x74);
+        p->collision += mib_read(mp, 0x78);
+        p->late_collision += mib_read(mp, 0x7c);
 }
 
 
@@ -944,7 +962,9 @@ static int mv643xx_eth_get_settings(struct net_device *dev, struct ethtool_cmd *
         err = mii_ethtool_gset(&mp->mii, cmd);
         spin_unlock_irq(&mp->lock);
 
-        /* The PHY may support 1000baseT_Half, but the mv643xx does not */
+        /*
+         * The MAC does not support 1000baseT_Half.
+         */
         cmd->supported &= ~SUPPORTED_1000baseT_Half;
         cmd->advertising &= ~ADVERTISED_1000baseT_Half;
 
@@ -956,6 +976,11 @@ static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *
         struct mv643xx_eth_private *mp = netdev_priv(dev);
         int err;
 
+        /*
+         * The MAC does not support 1000baseT_Half.
+         */
+        cmd->advertising &= ~ADVERTISED_1000baseT_Half;
+
         spin_lock_irq(&mp->lock);
         err = mii_ethtool_sset(&mp->mii, cmd);
         spin_unlock_irq(&mp->lock);
@@ -963,17 +988,17 @@ static int mv643xx_eth_set_settings(struct net_device *dev, struct ethtool_cmd *
         return err;
 }
 
-static void mv643xx_eth_get_drvinfo(struct net_device *netdev,
-                                struct ethtool_drvinfo *drvinfo)
+static void mv643xx_eth_get_drvinfo(struct net_device *dev,
+                                    struct ethtool_drvinfo *drvinfo)
 {
         strncpy(drvinfo->driver,  mv643xx_eth_driver_name, 32);
         strncpy(drvinfo->version, mv643xx_eth_driver_version, 32);
         strncpy(drvinfo->fw_version, "N/A", 32);
-        strncpy(drvinfo->bus_info, "mv643xx", 32);
+        strncpy(drvinfo->bus_info, "platform", 32);
         drvinfo->n_stats = ARRAY_SIZE(mv643xx_eth_stats);
 }
 
-static int mv643xx_eth_nway_restart(struct net_device *dev)
+static int mv643xx_eth_nway_reset(struct net_device *dev)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
 
@@ -987,29 +1012,28 @@ static u32 mv643xx_eth_get_link(struct net_device *dev)
         return mii_link_ok(&mp->mii);
 }
 
-static void mv643xx_eth_get_strings(struct net_device *netdev, uint32_t stringset,
-                                uint8_t *data)
+static void mv643xx_eth_get_strings(struct net_device *dev,
+                                    uint32_t stringset, uint8_t *data)
 {
         int i;
 
-        switch(stringset) {
-        case ETH_SS_STATS:
-                for (i=0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
+        if (stringset == ETH_SS_STATS) {
+                for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
                         memcpy(data + i * ETH_GSTRING_LEN,
                                 mv643xx_eth_stats[i].stat_string,
                                 ETH_GSTRING_LEN);
                 }
-                break;
         }
 }
 
-static void mv643xx_eth_get_ethtool_stats(struct net_device *netdev,
-                                struct ethtool_stats *stats, uint64_t *data)
+static void mv643xx_eth_get_ethtool_stats(struct net_device *dev,
+                                          struct ethtool_stats *stats,
+                                          uint64_t *data)
 {
-        struct mv643xx_eth_private *mp = netdev->priv;
+        struct mv643xx_eth_private *mp = dev->priv;
         int i;
 
-        update_mib_counters(mp);
+        mib_counters_update(mp);
 
         for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) {
                 const struct mv643xx_eth_stats *stat;
@@ -1027,38 +1051,35 @@ static void mv643xx_eth_get_ethtool_stats(struct net_device *netdev,
         }
 }
 
-static int mv643xx_eth_get_sset_count(struct net_device *netdev, int sset)
+static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset)
 {
-        switch (sset) {
-        case ETH_SS_STATS:
+        if (sset == ETH_SS_STATS)
                 return ARRAY_SIZE(mv643xx_eth_stats);
-        default:
-                return -EOPNOTSUPP;
-        }
+
+        return -EOPNOTSUPP;
 }
 
 static const struct ethtool_ops mv643xx_eth_ethtool_ops = {
-        .get_settings           = mv643xx_eth_get_settings,
-        .set_settings           = mv643xx_eth_set_settings,
-        .get_drvinfo            = mv643xx_eth_get_drvinfo,
-        .get_link               = mv643xx_eth_get_link,
+        .get_settings           = mv643xx_eth_get_settings,
+        .set_settings           = mv643xx_eth_set_settings,
+        .get_drvinfo            = mv643xx_eth_get_drvinfo,
+        .nway_reset             = mv643xx_eth_nway_reset,
+        .get_link               = mv643xx_eth_get_link,
         .set_sg                 = ethtool_op_set_sg,
+        .get_strings            = mv643xx_eth_get_strings,
+        .get_ethtool_stats      = mv643xx_eth_get_ethtool_stats,
         .get_sset_count         = mv643xx_eth_get_sset_count,
-        .get_ethtool_stats      = mv643xx_eth_get_ethtool_stats,
-        .get_strings            = mv643xx_eth_get_strings,
-        .nway_reset             = mv643xx_eth_nway_restart,
 };
 
 
 /* address handling *********************************************************/
 static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr)
 {
-        unsigned int port_num = mp->port_num;
         unsigned int mac_h;
         unsigned int mac_l;
 
-        mac_h = rdl(mp, MAC_ADDR_HIGH(port_num));
-        mac_l = rdl(mp, MAC_ADDR_LOW(port_num));
+        mac_h = rdl(mp, MAC_ADDR_HIGH(mp->port_num));
+        mac_l = rdl(mp, MAC_ADDR_LOW(mp->port_num));
 
         addr[0] = (mac_h >> 24) & 0xff;
         addr[1] = (mac_h >> 16) & 0xff;
@@ -1070,72 +1091,54 @@ static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr)
 
 static void init_mac_tables(struct mv643xx_eth_private *mp)
 {
-        unsigned int port_num = mp->port_num;
-        int table_index;
-
-        /* Clear DA filter unicast table (Ex_dFUT) */
-        for (table_index = 0; table_index <= 0xC; table_index += 4)
-                wrl(mp, UNICAST_TABLE(port_num) + table_index, 0);
+        int i;
 
-        for (table_index = 0; table_index <= 0xFC; table_index += 4) {
-                /* Clear DA filter special multicast table (Ex_dFSMT) */
-                wrl(mp, SPECIAL_MCAST_TABLE(port_num) + table_index, 0);
-                /* Clear DA filter other multicast table (Ex_dFOMT) */
-                wrl(mp, OTHER_MCAST_TABLE(port_num) + table_index, 0);
+        for (i = 0; i < 0x100; i += 4) {
+                wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0);
+                wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0);
         }
+
+        for (i = 0; i < 0x10; i += 4)
+                wrl(mp, UNICAST_TABLE(mp->port_num) + i, 0);
 }
 
 static void set_filter_table_entry(struct mv643xx_eth_private *mp,
-                                            int table, unsigned char entry)
+                                   int table, unsigned char entry)
 {
         unsigned int table_reg;
-        unsigned int tbl_offset;
-        unsigned int reg_offset;
-
-        tbl_offset = (entry / 4) * 4;   /* Register offset of DA table entry */
-        reg_offset = entry % 4;         /* Entry offset within the register */
 
         /* Set "accepts frame bit" at specified table entry */
-        table_reg = rdl(mp, table + tbl_offset);
-        table_reg |= 0x01 << (8 * reg_offset);
-        wrl(mp, table + tbl_offset, table_reg);
+        table_reg = rdl(mp, table + (entry & 0xfc));
+        table_reg |= 0x01 << (8 * (entry & 3));
+        wrl(mp, table + (entry & 0xfc), table_reg);
 }
 
 static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr)
 {
-        unsigned int port_num = mp->port_num;
         unsigned int mac_h;
         unsigned int mac_l;
         int table;
 
-        mac_l = (addr[4] << 8) | (addr[5]);
-        mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) |
-                                                        (addr[3] << 0);
+        mac_l = (addr[4] << 8) | addr[5];
+        mac_h = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3];
 
-        wrl(mp, MAC_ADDR_LOW(port_num), mac_l);
-        wrl(mp, MAC_ADDR_HIGH(port_num), mac_h);
+        wrl(mp, MAC_ADDR_LOW(mp->port_num), mac_l);
+        wrl(mp, MAC_ADDR_HIGH(mp->port_num), mac_h);
 
-        /* Accept frames with this address */
-        table = UNICAST_TABLE(port_num);
+        table = UNICAST_TABLE(mp->port_num);
         set_filter_table_entry(mp, table, addr[5] & 0x0f);
 }
 
-static void mv643xx_eth_update_mac_address(struct net_device *dev)
+static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
 
+        /* +2 is for the offset of the HW addr type */
+        memcpy(dev->dev_addr, addr + 2, 6);
+
         init_mac_tables(mp);
         uc_addr_set(mp, dev->dev_addr);
-}
-
-static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr)
-{
-        int i;
 
-        for (i = 0; i < 6; i++)
-                /* +2 is for the offset of the HW addr type */
-                dev->dev_addr[i] = ((unsigned char *)addr)[i + 2];
-        mv643xx_eth_update_mac_address(dev);
         return 0;
 }
 
@@ -1157,95 +1160,53 @@ static int addr_crc(unsigned char *addr)
         return crc;
 }
 
-static void mc_addr(struct mv643xx_eth_private *mp, unsigned char *addr)
+static void mv643xx_eth_set_rx_mode(struct net_device *dev)
 {
-        unsigned int port_num = mp->port_num;
-        int table;
-        int crc;
-
-        if ((addr[0] == 0x01) && (addr[1] == 0x00) &&
-            (addr[2] == 0x5E) && (addr[3] == 0x00) && (addr[4] == 0x00)) {
-                table = SPECIAL_MCAST_TABLE(port_num);
-                set_filter_table_entry(mp, table, addr[5]);
-                return;
-        }
-
-        crc = addr_crc(addr);
-
-        table = OTHER_MCAST_TABLE(port_num);
-        set_filter_table_entry(mp, table, crc);
-}
+        struct mv643xx_eth_private *mp = netdev_priv(dev);
+        u32 port_config;
+        struct dev_addr_list *addr;
+        int i;
 
-static void set_multicast_list(struct net_device *dev)
-{
+        port_config = rdl(mp, PORT_CONFIG(mp->port_num));
+        if (dev->flags & IFF_PROMISC)
+                port_config |= UNICAST_PROMISCUOUS_MODE;
+        else
+                port_config &= ~UNICAST_PROMISCUOUS_MODE;
+        wrl(mp, PORT_CONFIG(mp->port_num), port_config);
 
-        struct dev_mc_list      *mc_list;
-        int                     i;
-        int                     table_index;
-        struct mv643xx_eth_private      *mp = netdev_priv(dev);
-        unsigned int            port_num = mp->port_num;
+        if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) {
+                int port_num = mp->port_num;
+                u32 accept = 0x01010101;
 
-        /* If the device is in promiscuous mode or in all multicast mode,
-         * we will fully populate both multicast tables with accept.
-         * This is guaranteed to yield a match on all multicast addresses...
-         */
-        if ((dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI)) {
-                for (table_index = 0; table_index <= 0xFC; table_index += 4) {
-                        /* Set all entries in DA filter special multicast
-                         * table (Ex_dFSMT)
-                         * Set for ETH_Q0 for now
-                         * Bits
-                         * 0      Accept=1, Drop=0
-                         * 3-1  Queue    ETH_Q0=0
-                         * 7-4  Reserved = 0;
-                         */
-                        wrl(mp, SPECIAL_MCAST_TABLE(port_num) + table_index, 0x01010101);
-
-                        /* Set all entries in DA filter other multicast
-                         * table (Ex_dFOMT)
-                         * Set for ETH_Q0 for now
-                         * Bits
-                         * 0      Accept=1, Drop=0
-                         * 3-1  Queue    ETH_Q0=0
-                         * 7-4  Reserved = 0;
-                         */
-                        wrl(mp, OTHER_MCAST_TABLE(port_num) + table_index, 0x01010101);
+                for (i = 0; i < 0x100; i += 4) {
+                        wrl(mp, SPECIAL_MCAST_TABLE(port_num) + i, accept);
+                        wrl(mp, OTHER_MCAST_TABLE(port_num) + i, accept);
                 }
                 return;
         }
 
-        /* We will clear out multicast tables every time we get the list.
-         * Then add the entire new list...
-         */
-        for (table_index = 0; table_index <= 0xFC; table_index += 4) {
-                /* Clear DA filter special multicast table (Ex_dFSMT) */
-                wrl(mp, SPECIAL_MCAST_TABLE(port_num) + table_index, 0);
-
-                /* Clear DA filter other multicast table (Ex_dFOMT) */
-                wrl(mp, OTHER_MCAST_TABLE(port_num) + table_index, 0);
+        for (i = 0; i < 0x100; i += 4) {
+                wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i, 0);
+                wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i, 0);
         }
 
-        /* Get pointer to net_device multicast list and add each one... */
-        for (i = 0, mc_list = dev->mc_list;
-                        (i < 256) && (mc_list != NULL) && (i < dev->mc_count);
-                        i++, mc_list = mc_list->next)
-                if (mc_list->dmi_addrlen == 6)
-                        mc_addr(mp, mc_list->dmi_addr);
-}
+        for (addr = dev->mc_list; addr != NULL; addr = addr->next) {
+                u8 *a = addr->da_addr;
+                int table;
 
-static void mv643xx_eth_set_rx_mode(struct net_device *dev)
-{
-        struct mv643xx_eth_private *mp = netdev_priv(dev);
-        u32 config_reg;
+                if (addr->da_addrlen != 6)
+                        continue;
 
-        config_reg = rdl(mp, PORT_CONFIG(mp->port_num));
-        if (dev->flags & IFF_PROMISC)
-                config_reg |= UNICAST_PROMISCUOUS_MODE;
-        else
-                config_reg &= ~UNICAST_PROMISCUOUS_MODE;
-        wrl(mp, PORT_CONFIG(mp->port_num), config_reg);
+                if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) {
+                        table = SPECIAL_MCAST_TABLE(mp->port_num);
+                        set_filter_table_entry(mp, table, a[5]);
+                } else {
+                        int crc = addr_crc(a);
 
-        set_multicast_list(dev);
+                        table = OTHER_MCAST_TABLE(mp->port_num);
+                        set_filter_table_entry(mp, table, crc);
+                }
+        }
 }
 
 
@@ -1483,10 +1444,7 @@ static void txq_deinit(struct tx_queue *txq)
 
 
 /* netdev ops and related ***************************************************/
-static void port_reset(struct mv643xx_eth_private *mp);
-
-static void mv643xx_eth_update_pscr(struct mv643xx_eth_private *mp,
-                                    struct ethtool_cmd *ecmd)
+static void update_pscr(struct mv643xx_eth_private *mp, int speed, int duplex)
 {
         u32 pscr_o;
         u32 pscr_n;
@@ -1499,15 +1457,15 @@ static void mv643xx_eth_update_pscr(struct mv643xx_eth_private *mp,
                             SET_FULL_DUPLEX_MODE   |
                             MAX_RX_PACKET_MASK);
 
-        if (ecmd->speed == SPEED_1000) {
+        if (speed == SPEED_1000) {
                 pscr_n |= SET_GMII_SPEED_TO_1000 | MAX_RX_PACKET_9700BYTE;
         } else {
-                if (ecmd->speed == SPEED_100)
+                if (speed == SPEED_100)
                         pscr_n |= SET_MII_SPEED_TO_100;
                 pscr_n |= MAX_RX_PACKET_1522BYTE;
         }
 
-        if (ecmd->duplex == DUPLEX_FULL)
+        if (duplex == DUPLEX_FULL)
                 pscr_n |= SET_FULL_DUPLEX_MODE;
 
         if (pscr_n != pscr_o) {
@@ -1524,27 +1482,30 @@ static void mv643xx_eth_update_pscr(struct mv643xx_eth_private *mp,
         }
 }
 
-static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id)
+static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id)
 {
         struct net_device *dev = (struct net_device *)dev_id;
         struct mv643xx_eth_private *mp = netdev_priv(dev);
-        u32 int_cause, int_cause_ext = 0;
+        u32 int_cause;
+        u32 int_cause_ext;
 
-        /* Read interrupt cause registers */
         int_cause = rdl(mp, INT_CAUSE(mp->port_num)) & (INT_RX | INT_EXT);
+        if (int_cause == 0)
+                return IRQ_NONE;
+
+        int_cause_ext = 0;
         if (int_cause & INT_EXT) {
                 int_cause_ext = rdl(mp, INT_CAUSE_EXT(mp->port_num))
                                 & (INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX);
                 wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext);
         }
 
-        /* PHY status changed */
-        if (int_cause_ext & (INT_EXT_LINK | INT_EXT_PHY)) {
+        if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) {
                 if (mii_link_ok(&mp->mii)) {
                         struct ethtool_cmd cmd;
 
                         mii_ethtool_gset(&mp->mii, &cmd);
-                        mv643xx_eth_update_pscr(mp, &cmd);
+                        update_pscr(mp, cmd.speed, cmd.duplex);
                         txq_enable(mp->txq);
                         if (!netif_carrier_ok(dev)) {
                                 netif_carrier_on(dev);
@@ -1558,10 +1519,7 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id)
 
 #ifdef MV643XX_ETH_NAPI
         if (int_cause & INT_RX) {
-                /* schedule the NAPI poll routine to maintain port */
                 wrl(mp, INT_MASK(mp->port_num), 0x00000000);
-
-                /* wait for previous write to complete */
                 rdl(mp, INT_MASK(mp->port_num));
 
                 netif_rx_schedule(dev, &mp->napi);
@@ -1570,40 +1528,31 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id)
         if (int_cause & INT_RX)
                 rxq_process(mp->rxq, INT_MAX);
 #endif
+
         if (int_cause_ext & INT_EXT_TX) {
                 txq_reclaim(mp->txq, 0);
                 __txq_maybe_wake(mp->txq);
         }
 
-        /*
-         * If no real interrupt occured, exit.
-         * This can happen when using gigE interrupt coalescing mechanism.
-         */
-        if ((int_cause == 0x0) && (int_cause_ext == 0x0))
-                return IRQ_NONE;
-
         return IRQ_HANDLED;
 }
 
 static void phy_reset(struct mv643xx_eth_private *mp)
 {
-        unsigned int phy_reg_data;
+        unsigned int data;
 
-        /* Reset the PHY */
-        read_smi_reg(mp, 0, &phy_reg_data);
-        phy_reg_data |= 0x8000; /* Set bit 15 to reset the PHY */
-        write_smi_reg(mp, 0, phy_reg_data);
+        smi_reg_read(mp, mp->phy_addr, 0, &data);
+        data |= 0x8000;
+        smi_reg_write(mp, mp->phy_addr, 0, data);
 
-        /* wait for PHY to come out of reset */
         do {
                 udelay(1);
-                read_smi_reg(mp, 0, &phy_reg_data);
-        } while (phy_reg_data & 0x8000);
+                smi_reg_read(mp, mp->phy_addr, 0, &data);
+        } while (data & 0x8000);
 }
 
-static void port_start(struct net_device *dev)
+static void port_start(struct mv643xx_eth_private *mp)
 {
-        struct mv643xx_eth_private *mp = netdev_priv(dev);
         u32 pscr;
         struct ethtool_cmd ethtool_cmd;
         int i;
@@ -1625,9 +1574,9 @@ static void port_start(struct net_device *dev)
 
         wrl(mp, SDMA_CONFIG(mp->port_num), PORT_SDMA_CONFIG_DEFAULT_VALUE);
 
-        mv643xx_eth_get_settings(dev, &ethtool_cmd);
+        mv643xx_eth_get_settings(mp->dev, &ethtool_cmd);
         phy_reset(mp);
-        mv643xx_eth_set_settings(dev, &ethtool_cmd);
+        mv643xx_eth_set_settings(mp->dev, &ethtool_cmd);
 
         /*
          * Configure TX path and queues.
@@ -1643,8 +1592,10 @@ static void port_start(struct net_device *dev)
                 wrl(mp, off, addr);
         }
 
-        /* Add the assigned Ethernet address to the port's address table */
-        uc_addr_set(mp, dev->dev_addr);
+        /*
+         * Add configured unicast address to address filter table.
+         */
+        uc_addr_set(mp, mp->dev->dev_addr);
 
         /*
          * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast
@@ -1675,13 +1626,14 @@ static void port_start(struct net_device *dev)
 
 static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int delay)
 {
-        unsigned int port_num = mp->port_num;
         unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64;
 
-        /* Set RX Coalescing mechanism */
-        wrl(mp, SDMA_CONFIG(port_num),
+        if (coal > 0x3fff)
+                coal = 0x3fff;
+
+        wrl(mp, SDMA_CONFIG(mp->port_num),
                 ((coal & 0x3fff) << 8) |
-                (rdl(mp, SDMA_CONFIG(port_num))
+                (rdl(mp, SDMA_CONFIG(mp->port_num))
                         & 0xffc000ff));
 }
 
@@ -1689,68 +1641,59 @@ static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int delay)
 {
         unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64;
 
-        /* Set TX Coalescing mechanism */
-        wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), coal << 4);
-}
-
-static void port_init(struct mv643xx_eth_private *mp)
-{
-        port_reset(mp);
-
-        init_mac_tables(mp);
+        if (coal > 0x3fff)
+                coal = 0x3fff;
+        wrl(mp, TX_FIFO_URGENT_THRESHOLD(mp->port_num), (coal & 0x3fff) << 4);
 }
 
 static int mv643xx_eth_open(struct net_device *dev)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
-        unsigned int port_num = mp->port_num;
         int err;
 
-        /* Clear any pending ethernet port interrupts */
-        wrl(mp, INT_CAUSE(port_num), 0);
-        wrl(mp, INT_CAUSE_EXT(port_num), 0);
-        /* wait for previous write to complete */
-        rdl(mp, INT_CAUSE_EXT(port_num));
+        wrl(mp, INT_CAUSE(mp->port_num), 0);
+        wrl(mp, INT_CAUSE_EXT(mp->port_num), 0);
+        rdl(mp, INT_CAUSE_EXT(mp->port_num));
 
-        err = request_irq(dev->irq, mv643xx_eth_int_handler,
-                        IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, dev);
+        err = request_irq(dev->irq, mv643xx_eth_irq,
+                          IRQF_SHARED | IRQF_SAMPLE_RANDOM,
+                          dev->name, dev);
         if (err) {
-                printk(KERN_ERR "%s: Can not assign IRQ\n", dev->name);
+                dev_printk(KERN_ERR, &dev->dev, "can't assign irq\n");
                 return -EAGAIN;
         }
 
-        port_init(mp);
+        init_mac_tables(mp);
 
         err = rxq_init(mp);
         if (err)
-                goto out_free_irq;
+                goto out;
         rxq_refill(mp->rxq);
 
         err = txq_init(mp);
         if (err)
-                goto out_free_rx_skb;
+                goto out_free;
 
 #ifdef MV643XX_ETH_NAPI
         napi_enable(&mp->napi);
 #endif
 
-        port_start(dev);
+        port_start(mp);
 
         set_rx_coal(mp, 0);
         set_tx_coal(mp, 0);
 
-        /* Unmask phy and link status changes interrupts */
-        wrl(mp, INT_MASK_EXT(port_num), INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX);
+        wrl(mp, INT_MASK_EXT(mp->port_num),
+            INT_EXT_LINK | INT_EXT_PHY | INT_EXT_TX);
 
-        /* Unmask RX buffer and TX end interrupt */
-        wrl(mp, INT_MASK(port_num), INT_RX | INT_EXT);
+        wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_EXT);
 
         return 0;
 
 
-out_free_rx_skb:
+out_free:
         rxq_deinit(mp->rxq);
-out_free_irq:
+out:
         free_irq(dev->irq, dev);
 
         return err;
@@ -1758,34 +1701,27 @@ out_free_irq:
 
 static void port_reset(struct mv643xx_eth_private *mp)
 {
-        unsigned int port_num = mp->port_num;
-        unsigned int reg_data;
+        unsigned int data;
 
         txq_disable(mp->txq);
         rxq_disable(mp->rxq);
         while (!(rdl(mp, PORT_STATUS(mp->port_num)) & TX_FIFO_EMPTY))
                 udelay(10);
 
-        /* Clear all MIB counters */
-        clear_mib_counters(mp);
-
         /* Reset the Enable bit in the Configuration Register */
-        reg_data = rdl(mp, PORT_SERIAL_CONTROL(port_num));
-        reg_data &= ~(SERIAL_PORT_ENABLE                |
-                        DO_NOT_FORCE_LINK_FAIL  |
-                        FORCE_LINK_PASS);
-        wrl(mp, PORT_SERIAL_CONTROL(port_num), reg_data);
+        data = rdl(mp, PORT_SERIAL_CONTROL(mp->port_num));
+        data &= ~(SERIAL_PORT_ENABLE            |
+                  DO_NOT_FORCE_LINK_FAIL        |
+                  FORCE_LINK_PASS);
+        wrl(mp, PORT_SERIAL_CONTROL(mp->port_num), data);
 }
 
 static int mv643xx_eth_stop(struct net_device *dev)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
-        unsigned int port_num = mp->port_num;
 
-        /* Mask all interrupts on ethernet port */
-        wrl(mp, INT_MASK(port_num), 0x00000000);
-        /* wait for previous write to complete */
-        rdl(mp, INT_MASK(port_num));
+        wrl(mp, INT_MASK(mp->port_num), 0x00000000);
+        rdl(mp, INT_MASK(mp->port_num));
 
 #ifdef MV643XX_ETH_NAPI
         napi_disable(&mp->napi);
@@ -1793,17 +1729,18 @@ static int mv643xx_eth_stop(struct net_device *dev)
         netif_carrier_off(dev);
         netif_stop_queue(dev);
 
+        free_irq(dev->irq, dev);
+
         port_reset(mp);
+        mib_counters_update(mp);
 
         txq_deinit(mp->txq);
         rxq_deinit(mp->rxq);
 
-        free_irq(dev->irq, dev);
-
         return 0;
 }
 
-static int mv643xx_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
 
@@ -1812,7 +1749,7 @@ static int mv643xx_eth_do_ioctl(struct net_device *dev, struct ifreq *ifr, int c
 
 static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu)
 {
-        if ((new_mtu > 9500) || (new_mtu < 64))
+        if (new_mtu < 64 || new_mtu > 9500)
                 return -EINVAL;
 
         dev->mtu = new_mtu;
@@ -1823,73 +1760,70 @@ static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu)
          * Stop and then re-open the interface. This will allocate RX
          * skbs of the new MTU.
          * There is a possible danger that the open will not succeed,
-         * due to memory being full, which might fail the open function.
+         * due to memory being full.
          */
         mv643xx_eth_stop(dev);
         if (mv643xx_eth_open(dev)) {
-                printk(KERN_ERR "%s: Fatal error on opening device\n",
-                        dev->name);
+                dev_printk(KERN_ERR, &dev->dev,
+                           "fatal error on re-opening device after "
+                           "MTU change\n");
         }
 
         return 0;
 }
 
-static void mv643xx_eth_tx_timeout_task(struct work_struct *ugly)
+static void tx_timeout_task(struct work_struct *ugly)
 {
-        struct mv643xx_eth_private *mp = container_of(ugly, struct mv643xx_eth_private,
-                                                  tx_timeout_task);
-        struct net_device *dev = mp->dev;
-
-        if (!netif_running(dev))
-                return;
+        struct mv643xx_eth_private *mp;
 
-        netif_stop_queue(dev);
+        mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task);
+        if (netif_running(mp->dev)) {
+                netif_stop_queue(mp->dev);
 
-        port_reset(mp);
-        port_start(dev);
+                port_reset(mp);
+                port_start(mp);
 
-        __txq_maybe_wake(mp->txq);
+                __txq_maybe_wake(mp->txq);
+        }
 }
 
 static void mv643xx_eth_tx_timeout(struct net_device *dev)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
 
-        printk(KERN_INFO "%s: TX timeout  ", dev->name);
+        dev_printk(KERN_INFO, &dev->dev, "tx timeout\n");
 
-        /* Do the reset outside of interrupt context */
         schedule_work(&mp->tx_timeout_task);
 }
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
-static void mv643xx_eth_netpoll(struct net_device *netdev)
+static void mv643xx_eth_netpoll(struct net_device *dev)
 {
-        struct mv643xx_eth_private *mp = netdev_priv(netdev);
-        int port_num = mp->port_num;
+        struct mv643xx_eth_private *mp = netdev_priv(dev);
 
-        wrl(mp, INT_MASK(port_num), 0x00000000);
-        /* wait for previous write to complete */
-        rdl(mp, INT_MASK(port_num));
+        wrl(mp, INT_MASK(mp->port_num), 0x00000000);
+        rdl(mp, INT_MASK(mp->port_num));
 
-        mv643xx_eth_int_handler(netdev->irq, netdev);
+        mv643xx_eth_irq(dev->irq, dev);
 
-        wrl(mp, INT_MASK(port_num), INT_RX | INT_CAUSE_EXT);
+        wrl(mp, INT_MASK(mp->port_num), INT_RX | INT_CAUSE_EXT);
 }
 #endif
 
-static int mv643xx_eth_mdio_read(struct net_device *dev, int phy_id, int location)
+static int mv643xx_eth_mdio_read(struct net_device *dev, int addr, int reg)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
         int val;
 
-        read_smi_reg(mp, location, &val);
+        smi_reg_read(mp, addr, reg, &val);
+
         return val;
 }
 
-static void mv643xx_eth_mdio_write(struct net_device *dev, int phy_id, int location, int val)
+static void mv643xx_eth_mdio_write(struct net_device *dev, int addr, int reg, int val)
 {
         struct mv643xx_eth_private *mp = netdev_priv(dev);
-        write_smi_reg(mp, location, val);
+        smi_reg_write(mp, addr, reg, val);
 }
 
 
@@ -1956,9 +1890,6 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
                 goto out_free;
 
         spin_lock_init(&msp->phy_lock);
-        msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000;
-
-        platform_set_drvdata(pdev, msp);
 
         /*
          * (Re-)program MBUS remapping windows if we are asked to.
@@ -1966,6 +1897,13 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
         if (pd != NULL && pd->dram != NULL)
                 mv643xx_eth_conf_mbus_windows(msp, pd->dram);
 
+        /*
+         * Detect hardware parameters.
+         */
+        msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000;
+
+        platform_set_drvdata(pdev, msp);
+
         return 0;
 
 out_free:
@@ -1985,104 +1923,158 @@ static int mv643xx_eth_shared_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver mv643xx_eth_shared_driver = {
-        .probe = mv643xx_eth_shared_probe,
-        .remove = mv643xx_eth_shared_remove,
+        .probe          = mv643xx_eth_shared_probe,
+        .remove         = mv643xx_eth_shared_remove,
         .driver = {
-                .name = MV643XX_ETH_SHARED_NAME,
+                .name   = MV643XX_ETH_SHARED_NAME,
                 .owner  = THIS_MODULE,
         },
 };
 
 static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr)
 {
-        u32 reg_data;
         int addr_shift = 5 * mp->port_num;
+        u32 data;
 
-        reg_data = rdl(mp, PHY_ADDR);
-        reg_data &= ~(0x1f << addr_shift);
-        reg_data |= (phy_addr & 0x1f) << addr_shift;
-        wrl(mp, PHY_ADDR, reg_data);
+        data = rdl(mp, PHY_ADDR);
+        data &= ~(0x1f << addr_shift);
+        data |= (phy_addr & 0x1f) << addr_shift;
+        wrl(mp, PHY_ADDR, data);
 }
 
 static int phy_addr_get(struct mv643xx_eth_private *mp)
 {
-        unsigned int reg_data;
+        unsigned int data;
+
+        data = rdl(mp, PHY_ADDR);
+
+        return (data >> (5 * mp->port_num)) & 0x1f;
+}
+
+static void set_params(struct mv643xx_eth_private *mp,
+                       struct mv643xx_eth_platform_data *pd)
+{
+        struct net_device *dev = mp->dev;
+
+        if (is_valid_ether_addr(pd->mac_addr))
+                memcpy(dev->dev_addr, pd->mac_addr, 6);
+        else
+                uc_addr_get(mp, dev->dev_addr);
+
+        if (pd->phy_addr == -1) {
+                mp->shared_smi = NULL;
+                mp->phy_addr = -1;
+        } else {
+                mp->shared_smi = mp->shared;
+                if (pd->shared_smi != NULL)
+                        mp->shared_smi = platform_get_drvdata(pd->shared_smi);
+
+                if (pd->force_phy_addr || pd->phy_addr) {
+                        mp->phy_addr = pd->phy_addr & 0x3f;
+                        phy_addr_set(mp, mp->phy_addr);
+                } else {
+                        mp->phy_addr = phy_addr_get(mp);
+                }
+        }
 
-        reg_data = rdl(mp, PHY_ADDR);
+        mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
+        if (pd->rx_queue_size)
+                mp->default_rx_ring_size = pd->rx_queue_size;
+        mp->rx_desc_sram_addr = pd->rx_sram_addr;
+        mp->rx_desc_sram_size = pd->rx_sram_size;
 
-        return ((reg_data >> (5 * mp->port_num)) & 0x1f);
+        mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE;
+        if (pd->tx_queue_size)
+                mp->default_tx_ring_size = pd->tx_queue_size;
+        mp->tx_desc_sram_addr = pd->tx_sram_addr;
+        mp->tx_desc_sram_size = pd->tx_sram_size;
 }
 
 static int phy_detect(struct mv643xx_eth_private *mp)
 {
-        unsigned int phy_reg_data0;
-        int auto_neg;
+        unsigned int data;
+        unsigned int data2;
+
+        smi_reg_read(mp, mp->phy_addr, 0, &data);
+        smi_reg_write(mp, mp->phy_addr, 0, data ^ 0x1000);
 
-        read_smi_reg(mp, 0, &phy_reg_data0);
-        auto_neg = phy_reg_data0 & 0x1000;
-        phy_reg_data0 ^= 0x1000;        /* invert auto_neg */
-        write_smi_reg(mp, 0, phy_reg_data0);
+        smi_reg_read(mp, mp->phy_addr, 0, &data2);
+        if (((data ^ data2) & 0x1000) == 0)
+                return -ENODEV;
 
-        read_smi_reg(mp, 0, &phy_reg_data0);
-        if ((phy_reg_data0 & 0x1000) == auto_neg)
-                return -ENODEV;                         /* change didn't take */
+        smi_reg_write(mp, mp->phy_addr, 0, data);
 
-        phy_reg_data0 ^= 0x1000;
-        write_smi_reg(mp, 0, phy_reg_data0);
         return 0;
 }
 
-static void mv643xx_init_ethtool_cmd(struct net_device *dev, int phy_address,
-                                     int speed, int duplex,
-                                     struct ethtool_cmd *cmd)
+static int phy_init(struct mv643xx_eth_private *mp,
+                    struct mv643xx_eth_platform_data *pd)
 {
-        struct mv643xx_eth_private *mp = netdev_priv(dev);
+        struct ethtool_cmd cmd;
+        int err;
 
-        memset(cmd, 0, sizeof(*cmd));
+        err = phy_detect(mp);
+        if (err) {
+                dev_printk(KERN_INFO, &mp->dev->dev,
+                           "no PHY detected at addr %d\n", mp->phy_addr);
+                return err;
+        }
+        phy_reset(mp);
+
+        mp->mii.phy_id = mp->phy_addr;
+        mp->mii.phy_id_mask = 0x3f;
+        mp->mii.reg_num_mask = 0x1f;
+        mp->mii.dev = mp->dev;
+        mp->mii.mdio_read = mv643xx_eth_mdio_read;
+        mp->mii.mdio_write = mv643xx_eth_mdio_write;
 
-        cmd->port = PORT_MII;
-        cmd->transceiver = XCVR_INTERNAL;
-        cmd->phy_address = phy_address;
+        mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii);
 
-        if (speed == 0) {
-                cmd->autoneg = AUTONEG_ENABLE;
-                /* mii lib checks, but doesn't use speed on AUTONEG_ENABLE */
-                cmd->speed = SPEED_100;
-                cmd->advertising = ADVERTISED_10baseT_Half  |
-                                   ADVERTISED_10baseT_Full  |
-                                   ADVERTISED_100baseT_Half |
-                                   ADVERTISED_100baseT_Full;
+        memset(&cmd, 0, sizeof(cmd));
+
+        cmd.port = PORT_MII;
+        cmd.transceiver = XCVR_INTERNAL;
+        cmd.phy_address = mp->phy_addr;
+        if (pd->speed == 0) {
+                cmd.autoneg = AUTONEG_ENABLE;
+                cmd.speed = SPEED_100;
+                cmd.advertising = ADVERTISED_10baseT_Half  |
+                                  ADVERTISED_10baseT_Full  |
+                                  ADVERTISED_100baseT_Half |
+                                  ADVERTISED_100baseT_Full;
                 if (mp->mii.supports_gmii)
-                        cmd->advertising |= ADVERTISED_1000baseT_Full;
+                        cmd.advertising |= ADVERTISED_1000baseT_Full;
         } else {
-                cmd->autoneg = AUTONEG_DISABLE;
-                cmd->speed = speed;
-                cmd->duplex = duplex;
+                cmd.autoneg = AUTONEG_DISABLE;
+                cmd.speed = pd->speed;
+                cmd.duplex = pd->duplex;
         }
+
+        update_pscr(mp, cmd.speed, cmd.duplex);
+        mv643xx_eth_set_settings(mp->dev, &cmd);
+
+        return 0;
 }
 
 static int mv643xx_eth_probe(struct platform_device *pdev)
 {
         struct mv643xx_eth_platform_data *pd;
-        int port_num;
         struct mv643xx_eth_private *mp;
         struct net_device *dev;
-        u8 *p;
         struct resource *res;
-        int err;
-        struct ethtool_cmd cmd;
-        int duplex = DUPLEX_HALF;
-        int speed = 0;                  /* default to auto-negotiation */
         DECLARE_MAC_BUF(mac);
+        int err;
 
         pd = pdev->dev.platform_data;
         if (pd == NULL) {
-                printk(KERN_ERR "No mv643xx_eth_platform_data\n");
+                dev_printk(KERN_ERR, &pdev->dev,
+                           "no mv643xx_eth_platform_data\n");
                 return -ENODEV;
         }
 
         if (pd->shared == NULL) {
-                printk(KERN_ERR "No mv643xx_eth_platform_data->shared\n");
+                dev_printk(KERN_ERR, &pdev->dev,
+                           "no mv643xx_eth_platform_data->shared\n");
                 return -ENODEV;
         }
 
@@ -2090,145 +2082,80 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
         if (!dev)
                 return -ENOMEM;
 
-        platform_set_drvdata(pdev, dev);
-
         mp = netdev_priv(dev);
+        platform_set_drvdata(pdev, mp);
+
+        mp->shared = platform_get_drvdata(pd->shared);
+        mp->port_num = pd->port_number;
+
         mp->dev = dev;
 #ifdef MV643XX_ETH_NAPI
         netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, 64);
 #endif
 
+        set_params(mp, pd);
+
+        spin_lock_init(&mp->lock);
+
+        mib_counters_clear(mp);
+        INIT_WORK(&mp->tx_timeout_task, tx_timeout_task);
+
+        err = phy_init(mp, pd);
+        if (err)
+                goto out;
+        SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops);
+
+
         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
         BUG_ON(!res);
         dev->irq = res->start;
 
+        dev->hard_start_xmit = mv643xx_eth_xmit;
         dev->open = mv643xx_eth_open;
         dev->stop = mv643xx_eth_stop;
-        dev->hard_start_xmit = mv643xx_eth_start_xmit;
-        dev->set_mac_address = mv643xx_eth_set_mac_address;
         dev->set_multicast_list = mv643xx_eth_set_rx_mode;
-
-        /* No need to Tx Timeout */
+        dev->set_mac_address = mv643xx_eth_set_mac_address;
+        dev->do_ioctl = mv643xx_eth_ioctl;
+        dev->change_mtu = mv643xx_eth_change_mtu;
         dev->tx_timeout = mv643xx_eth_tx_timeout;
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
         dev->poll_controller = mv643xx_eth_netpoll;
 #endif
-
         dev->watchdog_timeo = 2 * HZ;
         dev->base_addr = 0;
-        dev->change_mtu = mv643xx_eth_change_mtu;
-        dev->do_ioctl = mv643xx_eth_do_ioctl;
-        SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops);
 
 #ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX
-#ifdef MAX_SKB_FRAGS
         /*
          * Zero copy can only work if we use Discovery II memory. Else, we will
          * have to map the buffers to ISA memory which is only 16 MB
          */
         dev->features = NETIF_F_SG | NETIF_F_IP_CSUM;
 #endif
-#endif
 
-        /* Configure the timeout task */
-        INIT_WORK(&mp->tx_timeout_task, mv643xx_eth_tx_timeout_task);
-
-        spin_lock_init(&mp->lock);
-
-        mp->shared = platform_get_drvdata(pd->shared);
-        port_num = mp->port_num = pd->port_number;
+        SET_NETDEV_DEV(dev, &pdev->dev);
 
         if (mp->shared->win_protect)
-                wrl(mp, WINDOW_PROTECT(port_num), mp->shared->win_protect);
-
-        mp->shared_smi = mp->shared;
-        if (pd->shared_smi != NULL)
-                mp->shared_smi = platform_get_drvdata(pd->shared_smi);
-
-        /* set default config values */
-        uc_addr_get(mp, dev->dev_addr);
-
-        if (is_valid_ether_addr(pd->mac_addr))
-                memcpy(dev->dev_addr, pd->mac_addr, 6);
-
-        if (pd->phy_addr || pd->force_phy_addr)
-                phy_addr_set(mp, pd->phy_addr);
-
-        mp->default_rx_ring_size = DEFAULT_RX_QUEUE_SIZE;
-        if (pd->rx_queue_size)
-                mp->default_rx_ring_size = pd->rx_queue_size;
-
-        mp->default_tx_ring_size = DEFAULT_TX_QUEUE_SIZE;
-        if (pd->tx_queue_size)
-                mp->default_tx_ring_size = pd->tx_queue_size;
-
-        if (pd->tx_sram_size) {
-                mp->tx_desc_sram_size = pd->tx_sram_size;
-                mp->tx_desc_sram_addr = pd->tx_sram_addr;
-        }
-
-        if (pd->rx_sram_size) {
-                mp->rx_desc_sram_addr = pd->rx_sram_addr;
-                mp->rx_desc_sram_size = pd->rx_sram_size;
-        }
-
-        duplex = pd->duplex;
-        speed = pd->speed;
+                wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect);
 
-        /* Hook up MII support for ethtool */
-        mp->mii.dev = dev;
-        mp->mii.mdio_read = mv643xx_eth_mdio_read;
-        mp->mii.mdio_write = mv643xx_eth_mdio_write;
-        mp->mii.phy_id = phy_addr_get(mp);
-        mp->mii.phy_id_mask = 0x3f;
-        mp->mii.reg_num_mask = 0x1f;
-
-        err = phy_detect(mp);
-        if (err) {
-                pr_debug("%s: No PHY detected at addr %d\n",
-                                dev->name, phy_addr_get(mp));
-                goto out;
-        }
-
-        phy_reset(mp);
-        mp->mii.supports_gmii = mii_check_gmii_support(&mp->mii);
-        mv643xx_init_ethtool_cmd(dev, mp->mii.phy_id, speed, duplex, &cmd);
-        mv643xx_eth_update_pscr(mp, &cmd);
-        mv643xx_eth_set_settings(dev, &cmd);
-
-        SET_NETDEV_DEV(dev, &pdev->dev);
         err = register_netdev(dev);
         if (err)
                 goto out;
 
-        p = dev->dev_addr;
-        printk(KERN_NOTICE
-                "%s: port %d with MAC address %s\n",
-                dev->name, port_num, print_mac(mac, p));
+        dev_printk(KERN_NOTICE, &dev->dev, "port %d with MAC address %s\n",
+                   mp->port_num, print_mac(mac, dev->dev_addr));
 
         if (dev->features & NETIF_F_SG)
-                printk(KERN_NOTICE "%s: Scatter Gather Enabled\n", dev->name);
+                dev_printk(KERN_NOTICE, &dev->dev, "scatter/gather enabled\n");
 
         if (dev->features & NETIF_F_IP_CSUM)
-                printk(KERN_NOTICE "%s: TX TCP/IP Checksumming Supported\n",
-                                                                dev->name);
-
-#ifdef MV643XX_ETH_CHECKSUM_OFFLOAD_TX
-        printk(KERN_NOTICE "%s: RX TCP/UDP Checksum Offload ON \n", dev->name);
-#endif
-
-#ifdef MV643XX_ETH_COAL
-        printk(KERN_NOTICE "%s: TX and RX Interrupt Coalescing ON \n",
-                                                                dev->name);
-#endif
+                dev_printk(KERN_NOTICE, &dev->dev, "tx checksum offload\n");
 
 #ifdef MV643XX_ETH_NAPI
-        printk(KERN_NOTICE "%s: RX NAPI Enabled \n", dev->name);
+        dev_printk(KERN_NOTICE, &dev->dev, "napi enabled\n");
 #endif
 
         if (mp->tx_desc_sram_size > 0)
-                printk(KERN_NOTICE "%s: Using SRAM\n", dev->name);
+                dev_printk(KERN_NOTICE, &dev->dev, "configured with sram\n");
 
         return 0;
 
@@ -2240,35 +2167,35 @@ out:
 
 static int mv643xx_eth_remove(struct platform_device *pdev)
 {
-        struct net_device *dev = platform_get_drvdata(pdev);
+        struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
 
-        unregister_netdev(dev);
+        unregister_netdev(mp->dev);
         flush_scheduled_work();
+        free_netdev(mp->dev);
 
-        free_netdev(dev);
         platform_set_drvdata(pdev, NULL);
+
         return 0;
 }
 
 static void mv643xx_eth_shutdown(struct platform_device *pdev)
 {
-        struct net_device *dev = platform_get_drvdata(pdev);
-        struct mv643xx_eth_private *mp = netdev_priv(dev);
-        unsigned int port_num = mp->port_num;
+        struct mv643xx_eth_private *mp = platform_get_drvdata(pdev);
 
         /* Mask all interrupts on ethernet port */
-        wrl(mp, INT_MASK(port_num), 0);
-        rdl(mp, INT_MASK(port_num));
+        wrl(mp, INT_MASK(mp->port_num), 0);
+        rdl(mp, INT_MASK(mp->port_num));
 
-        port_reset(mp);
+        if (netif_running(mp->dev))
+                port_reset(mp);
 }
 
 static struct platform_driver mv643xx_eth_driver = {
-        .probe = mv643xx_eth_probe,
-        .remove = mv643xx_eth_remove,
-        .shutdown = mv643xx_eth_shutdown,
+        .probe          = mv643xx_eth_probe,
+        .remove         = mv643xx_eth_remove,
+        .shutdown       = mv643xx_eth_shutdown,
         .driver = {
-                .name = MV643XX_ETH_NAME,
+                .name   = MV643XX_ETH_NAME,
                 .owner  = THIS_MODULE,
         },
 };
@@ -2283,21 +2210,21 @@ static int __init mv643xx_eth_init_module(void)
                 if (rc)
                         platform_driver_unregister(&mv643xx_eth_shared_driver);
         }
+
         return rc;
 }
+module_init(mv643xx_eth_init_module);
 
 static void __exit mv643xx_eth_cleanup_module(void)
 {
         platform_driver_unregister(&mv643xx_eth_driver);
         platform_driver_unregister(&mv643xx_eth_shared_driver);
 }
-
-module_init(mv643xx_eth_init_module);
 module_exit(mv643xx_eth_cleanup_module);
 
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR(  "Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani"
-                " and Dale Farnsworth");
+MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, Manish Lachwani "
+              "and Dale Farnsworth");
 MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX");
-MODULE_ALIAS("platform:" MV643XX_ETH_NAME);
+MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME);
+MODULE_ALIAS("platform:" MV643XX_ETH_NAME);