xscale: Move the Intel XScale IXP drivers

Move the Intel XScale IXP drivers into drivers/net/ethernet/xscale/
and make the necessary Kconfig and Makefile changes.

CC: Krzysztof Halasa <khc@pm.waw.pl>
CC: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 1489 deletions

diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
deleted file mode 100644
index de51e8453c13..000000000000
--- a/drivers/net/arm/ixp4xx_eth.c
+++ /dev/null
@@ -1,1489 +0,0 @@
-/*
- * Intel IXP4xx Ethernet driver for Linux
- *
- * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- *
- * Ethernet port config (0x00 is not present on IXP42X):
- *
- * logical port		0x00		0x10		0x20
- * NPE			0 (NPE-A)	1 (NPE-B)	2 (NPE-C)
- * physical PortId	2		0		1
- * TX queue		23		24		25
- * RX-free queue	26		27		28
- * TX-done queue is always 31, per-port RX and TX-ready queues are configurable
- *
- *
- * Queue entries:
- * bits 0 -> 1	- NPE ID (RX and TX-done)
- * bits 0 -> 2	- priority (TX, per 802.1D)
- * bits 3 -> 4	- port ID (user-set?)
- * bits 5 -> 31	- physical descriptor address
- */
-
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmapool.h>
-#include <linux/etherdevice.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/net_tstamp.h>
-#include <linux/phy.h>
-#include <linux/platform_device.h>
-#include <linux/ptp_classify.h>
-#include <linux/slab.h>
-#include <mach/ixp46x_ts.h>
-#include <mach/npe.h>
-#include <mach/qmgr.h>
-
-#define DEBUG_DESC		0
-#define DEBUG_RX		0
-#define DEBUG_TX		0
-#define DEBUG_PKT_BYTES		0
-#define DEBUG_MDIO		0
-#define DEBUG_CLOSE		0
-
-#define DRV_NAME		"ixp4xx_eth"
-
-#define MAX_NPES		3
-
-#define RX_DESCS		64 /* also length of all RX queues */
-#define TX_DESCS		16 /* also length of all TX queues */
-#define TXDONE_QUEUE_LEN	64 /* dwords */
-
-#define POOL_ALLOC_SIZE		(sizeof(struct desc) * (RX_DESCS + TX_DESCS))
-#define REGS_SIZE		0x1000
-#define MAX_MRU			1536 /* 0x600 */
-#define RX_BUFF_SIZE		ALIGN((NET_IP_ALIGN) + MAX_MRU, 4)
-
-#define NAPI_WEIGHT		16
-#define MDIO_INTERVAL		(3 * HZ)
-#define MAX_MDIO_RETRIES	100 /* microseconds, typically 30 cycles */
-#define MAX_CLOSE_WAIT		1000 /* microseconds, typically 2-3 cycles */
-
-#define NPE_ID(port_id)		((port_id) >> 4)
-#define PHYSICAL_ID(port_id)	((NPE_ID(port_id) + 2) % 3)
-#define TX_QUEUE(port_id)	(NPE_ID(port_id) + 23)
-#define RXFREE_QUEUE(port_id)	(NPE_ID(port_id) + 26)
-#define TXDONE_QUEUE		31
-
-#define PTP_SLAVE_MODE		1
-#define PTP_MASTER_MODE		2
-#define PORT2CHANNEL(p)		NPE_ID(p->id)
-
-/* TX Control Registers */
-#define TX_CNTRL0_TX_EN		0x01
-#define TX_CNTRL0_HALFDUPLEX	0x02
-#define TX_CNTRL0_RETRY		0x04
-#define TX_CNTRL0_PAD_EN	0x08
-#define TX_CNTRL0_APPEND_FCS	0x10
-#define TX_CNTRL0_2DEFER	0x20
-#define TX_CNTRL0_RMII		0x40 /* reduced MII */
-#define TX_CNTRL1_RETRIES	0x0F /* 4 bits */
-
-/* RX Control Registers */
-#define RX_CNTRL0_RX_EN		0x01
-#define RX_CNTRL0_PADSTRIP_EN	0x02
-#define RX_CNTRL0_SEND_FCS	0x04
-#define RX_CNTRL0_PAUSE_EN	0x08
-#define RX_CNTRL0_LOOP_EN	0x10
-#define RX_CNTRL0_ADDR_FLTR_EN	0x20
-#define RX_CNTRL0_RX_RUNT_EN	0x40
-#define RX_CNTRL0_BCAST_DIS	0x80
-#define RX_CNTRL1_DEFER_EN	0x01
-
-/* Core Control Register */
-#define CORE_RESET		0x01
-#define CORE_RX_FIFO_FLUSH	0x02
-#define CORE_TX_FIFO_FLUSH	0x04
-#define CORE_SEND_JAM		0x08
-#define CORE_MDC_EN		0x10 /* MDIO using NPE-B ETH-0 only */
-
-#define DEFAULT_TX_CNTRL0	(TX_CNTRL0_TX_EN | TX_CNTRL0_RETRY |	\
-				 TX_CNTRL0_PAD_EN | TX_CNTRL0_APPEND_FCS | \
-				 TX_CNTRL0_2DEFER)
-#define DEFAULT_RX_CNTRL0	RX_CNTRL0_RX_EN
-#define DEFAULT_CORE_CNTRL	CORE_MDC_EN
-
-
-/* NPE message codes */
-#define NPE_GETSTATUS			0x00
-#define NPE_EDB_SETPORTADDRESS		0x01
-#define NPE_EDB_GETMACADDRESSDATABASE	0x02
-#define NPE_EDB_SETMACADDRESSSDATABASE	0x03
-#define NPE_GETSTATS			0x04
-#define NPE_RESETSTATS			0x05
-#define NPE_SETMAXFRAMELENGTHS		0x06
-#define NPE_VLAN_SETRXTAGMODE		0x07
-#define NPE_VLAN_SETDEFAULTRXVID	0x08
-#define NPE_VLAN_SETPORTVLANTABLEENTRY	0x09
-#define NPE_VLAN_SETPORTVLANTABLERANGE	0x0A
-#define NPE_VLAN_SETRXQOSENTRY		0x0B
-#define NPE_VLAN_SETPORTIDEXTRACTIONMODE 0x0C
-#define NPE_STP_SETBLOCKINGSTATE	0x0D
-#define NPE_FW_SETFIREWALLMODE		0x0E
-#define NPE_PC_SETFRAMECONTROLDURATIONID 0x0F
-#define NPE_PC_SETAPMACTABLE		0x11
-#define NPE_SETLOOPBACK_MODE		0x12
-#define NPE_PC_SETBSSIDTABLE		0x13
-#define NPE_ADDRESS_FILTER_CONFIG	0x14
-#define NPE_APPENDFCSCONFIG		0x15
-#define NPE_NOTIFY_MAC_RECOVERY_DONE	0x16
-#define NPE_MAC_RECOVERY_START		0x17
-
-
-#ifdef __ARMEB__
-typedef struct sk_buff buffer_t;
-#define free_buffer dev_kfree_skb
-#define free_buffer_irq dev_kfree_skb_irq
-#else
-typedef void buffer_t;
-#define free_buffer kfree
-#define free_buffer_irq kfree
-#endif
-
-struct eth_regs {
-	u32 tx_control[2], __res1[2];		/* 000 */
-	u32 rx_control[2], __res2[2];		/* 010 */
-	u32 random_seed, __res3[3];		/* 020 */
-	u32 partial_empty_threshold, __res4;	/* 030 */
-	u32 partial_full_threshold, __res5;	/* 038 */
-	u32 tx_start_bytes, __res6[3];		/* 040 */
-	u32 tx_deferral, rx_deferral, __res7[2];/* 050 */
-	u32 tx_2part_deferral[2], __res8[2];	/* 060 */
-	u32 slot_time, __res9[3];		/* 070 */
-	u32 mdio_command[4];			/* 080 */
-	u32 mdio_status[4];			/* 090 */
-	u32 mcast_mask[6], __res10[2];		/* 0A0 */
-	u32 mcast_addr[6], __res11[2];		/* 0C0 */
-	u32 int_clock_threshold, __res12[3];	/* 0E0 */
-	u32 hw_addr[6], __res13[61];		/* 0F0 */
-	u32 core_control;			/* 1FC */
-};
-
-struct port {
-	struct resource *mem_res;
-	struct eth_regs __iomem *regs;
-	struct npe *npe;
-	struct net_device *netdev;
-	struct napi_struct napi;
-	struct phy_device *phydev;
-	struct eth_plat_info *plat;
-	buffer_t *rx_buff_tab[RX_DESCS], *tx_buff_tab[TX_DESCS];
-	struct desc *desc_tab;	/* coherent */
-	u32 desc_tab_phys;
-	int id;			/* logical port ID */
-	int speed, duplex;
-	u8 firmware[4];
-	int hwts_tx_en;
-	int hwts_rx_en;
-};
-
-/* NPE message structure */
-struct msg {
-#ifdef __ARMEB__
-	u8 cmd, eth_id, byte2, byte3;
-	u8 byte4, byte5, byte6, byte7;
-#else
-	u8 byte3, byte2, eth_id, cmd;
-	u8 byte7, byte6, byte5, byte4;
-#endif
-};
-
-/* Ethernet packet descriptor */
-struct desc {
-	u32 next;		/* pointer to next buffer, unused */
-
-#ifdef __ARMEB__
-	u16 buf_len;		/* buffer length */
-	u16 pkt_len;		/* packet length */
-	u32 data;		/* pointer to data buffer in RAM */
-	u8 dest_id;
-	u8 src_id;
-	u16 flags;
-	u8 qos;
-	u8 padlen;
-	u16 vlan_tci;
-#else
-	u16 pkt_len;		/* packet length */
-	u16 buf_len;		/* buffer length */
-	u32 data;		/* pointer to data buffer in RAM */
-	u16 flags;
-	u8 src_id;
-	u8 dest_id;
-	u16 vlan_tci;
-	u8 padlen;
-	u8 qos;
-#endif
-
-#ifdef __ARMEB__
-	u8 dst_mac_0, dst_mac_1, dst_mac_2, dst_mac_3;
-	u8 dst_mac_4, dst_mac_5, src_mac_0, src_mac_1;
-	u8 src_mac_2, src_mac_3, src_mac_4, src_mac_5;
-#else
-	u8 dst_mac_3, dst_mac_2, dst_mac_1, dst_mac_0;
-	u8 src_mac_1, src_mac_0, dst_mac_5, dst_mac_4;
-	u8 src_mac_5, src_mac_4, src_mac_3, src_mac_2;
-#endif
-};
-
-
-#define rx_desc_phys(port, n)	((port)->desc_tab_phys +		\
-				 (n) * sizeof(struct desc))
-#define rx_desc_ptr(port, n)	(&(port)->desc_tab[n])
-
-#define tx_desc_phys(port, n)	((port)->desc_tab_phys +		\
-				 ((n) + RX_DESCS) * sizeof(struct desc))
-#define tx_desc_ptr(port, n)	(&(port)->desc_tab[(n) + RX_DESCS])
-
-#ifndef __ARMEB__
-static inline void memcpy_swab32(u32 *dest, u32 *src, int cnt)
-{
-	int i;
-	for (i = 0; i < cnt; i++)
-		dest[i] = swab32(src[i]);
-}
-#endif
-
-static spinlock_t mdio_lock;
-static struct eth_regs __iomem *mdio_regs; /* mdio command and status only */
-static struct mii_bus *mdio_bus;
-static int ports_open;
-static struct port *npe_port_tab[MAX_NPES];
-static struct dma_pool *dma_pool;
-
-static struct sock_filter ptp_filter[] = {
-	PTP_FILTER
-};
-
-static int ixp_ptp_match(struct sk_buff *skb, u16 uid_hi, u32 uid_lo, u16 seqid)
-{
-	u8 *data = skb->data;
-	unsigned int offset;
-	u16 *hi, *id;
-	u32 lo;
-
-	if (sk_run_filter(skb, ptp_filter) != PTP_CLASS_V1_IPV4)
-		return 0;
-
-	offset = ETH_HLEN + IPV4_HLEN(data) + UDP_HLEN;
-
-	if (skb->len < offset + OFF_PTP_SEQUENCE_ID + sizeof(seqid))
-		return 0;
-
-	hi = (u16 *)(data + offset + OFF_PTP_SOURCE_UUID);
-	id = (u16 *)(data + offset + OFF_PTP_SEQUENCE_ID);
-
-	memcpy(&lo, &hi[1], sizeof(lo));
-
-	return (uid_hi == ntohs(*hi) &&
-		uid_lo == ntohl(lo) &&
-		seqid  == ntohs(*id));
-}
-
-static void ixp_rx_timestamp(struct port *port, struct sk_buff *skb)
-{
-	struct skb_shared_hwtstamps *shhwtstamps;
-	struct ixp46x_ts_regs *regs;
-	u64 ns;
-	u32 ch, hi, lo, val;
-	u16 uid, seq;
-
-	if (!port->hwts_rx_en)
-		return;
-
-	ch = PORT2CHANNEL(port);
-
-	regs = (struct ixp46x_ts_regs __iomem *) IXP4XX_TIMESYNC_BASE_VIRT;
-
-	val = __raw_readl(&regs->channel[ch].ch_event);
-
-	if (!(val & RX_SNAPSHOT_LOCKED))
-		return;
-
-	lo = __raw_readl(&regs->channel[ch].src_uuid_lo);
-	hi = __raw_readl(&regs->channel[ch].src_uuid_hi);
-
-	uid = hi & 0xffff;
-	seq = (hi >> 16) & 0xffff;
-
-	if (!ixp_ptp_match(skb, htons(uid), htonl(lo), htons(seq)))
-		goto out;
-
-	lo = __raw_readl(&regs->channel[ch].rx_snap_lo);
-	hi = __raw_readl(&regs->channel[ch].rx_snap_hi);
-	ns = ((u64) hi) << 32;
-	ns |= lo;
-	ns <<= TICKS_NS_SHIFT;
-
-	shhwtstamps = skb_hwtstamps(skb);
-	memset(shhwtstamps, 0, sizeof(*shhwtstamps));
-	shhwtstamps->hwtstamp = ns_to_ktime(ns);
-out:
-	__raw_writel(RX_SNAPSHOT_LOCKED, &regs->channel[ch].ch_event);
-}
-
-static void ixp_tx_timestamp(struct port *port, struct sk_buff *skb)
-{
-	struct skb_shared_hwtstamps shhwtstamps;
-	struct ixp46x_ts_regs *regs;
-	struct skb_shared_info *shtx;
-	u64 ns;
-	u32 ch, cnt, hi, lo, val;
-
-	shtx = skb_shinfo(skb);
-	if (unlikely(shtx->tx_flags & SKBTX_HW_TSTAMP && port->hwts_tx_en))
-		shtx->tx_flags |= SKBTX_IN_PROGRESS;
-	else
-		return;
-
-	ch = PORT2CHANNEL(port);
-
-	regs = (struct ixp46x_ts_regs __iomem *) IXP4XX_TIMESYNC_BASE_VIRT;
-
-	/*
-	 * This really stinks, but we have to poll for the Tx time stamp.
-	 * Usually, the time stamp is ready after 4 to 6 microseconds.
-	 */
-	for (cnt = 0; cnt < 100; cnt++) {
-		val = __raw_readl(&regs->channel[ch].ch_event);
-		if (val & TX_SNAPSHOT_LOCKED)
-			break;
-		udelay(1);
-	}
-	if (!(val & TX_SNAPSHOT_LOCKED)) {
-		shtx->tx_flags &= ~SKBTX_IN_PROGRESS;
-		return;
-	}
-
-	lo = __raw_readl(&regs->channel[ch].tx_snap_lo);
-	hi = __raw_readl(&regs->channel[ch].tx_snap_hi);
-	ns = ((u64) hi) << 32;
-	ns |= lo;
-	ns <<= TICKS_NS_SHIFT;
-
-	memset(&shhwtstamps, 0, sizeof(shhwtstamps));
-	shhwtstamps.hwtstamp = ns_to_ktime(ns);
-	skb_tstamp_tx(skb, &shhwtstamps);
-
-	__raw_writel(TX_SNAPSHOT_LOCKED, &regs->channel[ch].ch_event);
-}
-
-static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
-	struct hwtstamp_config cfg;
-	struct ixp46x_ts_regs *regs;
-	struct port *port = netdev_priv(netdev);
-	int ch;
-
-	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
-		return -EFAULT;
-
-	if (cfg.flags) /* reserved for future extensions */
-		return -EINVAL;
-
-	ch = PORT2CHANNEL(port);
-	regs = (struct ixp46x_ts_regs __iomem *) IXP4XX_TIMESYNC_BASE_VIRT;
-
-	switch (cfg.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		port->hwts_tx_en = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		port->hwts_tx_en = 1;
-		break;
-	default:
-		return -ERANGE;
-	}
-
-	switch (cfg.rx_filter) {
-	case HWTSTAMP_FILTER_NONE:
-		port->hwts_rx_en = 0;
-		break;
-	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
-		port->hwts_rx_en = PTP_SLAVE_MODE;
-		__raw_writel(0, &regs->channel[ch].ch_control);
-		break;
-	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
-		port->hwts_rx_en = PTP_MASTER_MODE;
-		__raw_writel(MASTER_MODE, &regs->channel[ch].ch_control);
-		break;
-	default:
-		return -ERANGE;
-	}
-
-	/* Clear out any old time stamps. */
-	__raw_writel(TX_SNAPSHOT_LOCKED | RX_SNAPSHOT_LOCKED,
-		     &regs->channel[ch].ch_event);
-
-	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
-}
-
-static int ixp4xx_mdio_cmd(struct mii_bus *bus, int phy_id, int location,
-			   int write, u16 cmd)
-{
-	int cycles = 0;
-
-	if (__raw_readl(&mdio_regs->mdio_command[3]) & 0x80) {
-		printk(KERN_ERR "%s: MII not ready to transmit\n", bus->name);
-		return -1;
-	}
-
-	if (write) {
-		__raw_writel(cmd & 0xFF, &mdio_regs->mdio_command[0]);
-		__raw_writel(cmd >> 8, &mdio_regs->mdio_command[1]);
-	}
-	__raw_writel(((phy_id << 5) | location) & 0xFF,
-		     &mdio_regs->mdio_command[2]);
-	__raw_writel((phy_id >> 3) | (write << 2) | 0x80 /* GO */,
-		     &mdio_regs->mdio_command[3]);
-
-	while ((cycles < MAX_MDIO_RETRIES) &&
-	       (__raw_readl(&mdio_regs->mdio_command[3]) & 0x80)) {
-		udelay(1);
-		cycles++;
-	}
-
-	if (cycles == MAX_MDIO_RETRIES) {
-		printk(KERN_ERR "%s #%i: MII write failed\n", bus->name,
-		       phy_id);
-		return -1;
-	}
-
-#if DEBUG_MDIO
-	printk(KERN_DEBUG "%s #%i: mdio_%s() took %i cycles\n", bus->name,
-	       phy_id, write ? "write" : "read", cycles);
-#endif
-
-	if (write)
-		return 0;
-
-	if (__raw_readl(&mdio_regs->mdio_status[3]) & 0x80) {
-#if DEBUG_MDIO
-		printk(KERN_DEBUG "%s #%i: MII read failed\n", bus->name,
-		       phy_id);
-#endif
-		return 0xFFFF; /* don't return error */
-	}
-
-	return (__raw_readl(&mdio_regs->mdio_status[0]) & 0xFF) |
-		((__raw_readl(&mdio_regs->mdio_status[1]) & 0xFF) << 8);
-}
-
-static int ixp4xx_mdio_read(struct mii_bus *bus, int phy_id, int location)
-{
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&mdio_lock, flags);
-	ret = ixp4xx_mdio_cmd(bus, phy_id, location, 0, 0);
-	spin_unlock_irqrestore(&mdio_lock, flags);
-#if DEBUG_MDIO
-	printk(KERN_DEBUG "%s #%i: MII read [%i] -> 0x%X\n", bus->name,
-	       phy_id, location, ret);
-#endif
-	return ret;
-}
-
-static int ixp4xx_mdio_write(struct mii_bus *bus, int phy_id, int location,
-			     u16 val)
-{
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&mdio_lock, flags);
-	ret = ixp4xx_mdio_cmd(bus, phy_id, location, 1, val);
-	spin_unlock_irqrestore(&mdio_lock, flags);
-#if DEBUG_MDIO
-	printk(KERN_DEBUG "%s #%i: MII write [%i] <- 0x%X, err = %i\n",
-	       bus->name, phy_id, location, val, ret);
-#endif
-	return ret;
-}
-
-static int ixp4xx_mdio_register(void)
-{
-	int err;
-
-	if (!(mdio_bus = mdiobus_alloc()))
-		return -ENOMEM;
-
-	if (cpu_is_ixp43x()) {
-		/* IXP43x lacks NPE-B and uses NPE-C for MII PHY access */
-		if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEC_ETH))
-			return -ENODEV;
-		mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthC_BASE_VIRT;
-	} else {
-		/* All MII PHY accesses use NPE-B Ethernet registers */
-		if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEB_ETH0))
-			return -ENODEV;
-		mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
-	}
-
-	__raw_writel(DEFAULT_CORE_CNTRL, &mdio_regs->core_control);
-	spin_lock_init(&mdio_lock);
-	mdio_bus->name = "IXP4xx MII Bus";
-	mdio_bus->read = &ixp4xx_mdio_read;
-	mdio_bus->write = &ixp4xx_mdio_write;
-	strcpy(mdio_bus->id, "0");
-
-	if ((err = mdiobus_register(mdio_bus)))
-		mdiobus_free(mdio_bus);
-	return err;
-}
-
-static void ixp4xx_mdio_remove(void)
-{
-	mdiobus_unregister(mdio_bus);
-	mdiobus_free(mdio_bus);
-}
-
-
-static void ixp4xx_adjust_link(struct net_device *dev)
-{
-	struct port *port = netdev_priv(dev);
-	struct phy_device *phydev = port->phydev;
-
-	if (!phydev->link) {
-		if (port->speed) {
-			port->speed = 0;
-			printk(KERN_INFO "%s: link down\n", dev->name);
-		}
-		return;
-	}
-
-	if (port->speed == phydev->speed && port->duplex == phydev->duplex)
-		return;
-
-	port->speed = phydev->speed;
-	port->duplex = phydev->duplex;
-
-	if (port->duplex)
-		__raw_writel(DEFAULT_TX_CNTRL0 & ~TX_CNTRL0_HALFDUPLEX,
-			     &port->regs->tx_control[0]);
-	else
-		__raw_writel(DEFAULT_TX_CNTRL0 | TX_CNTRL0_HALFDUPLEX,
-			     &port->regs->tx_control[0]);
-
-	printk(KERN_INFO "%s: link up, speed %u Mb/s, %s duplex\n",
-	       dev->name, port->speed, port->duplex ? "full" : "half");
-}
-
-
-static inline void debug_pkt(struct net_device *dev, const char *func,
-			     u8 *data, int len)
-{
-#if DEBUG_PKT_BYTES
-	int i;
-
-	printk(KERN_DEBUG "%s: %s(%i) ", dev->name, func, len);
-	for (i = 0; i < len; i++) {
-		if (i >= DEBUG_PKT_BYTES)
-			break;
-		printk("%s%02X",
-		       ((i == 6) || (i == 12) || (i >= 14)) ? " " : "",
-		       data[i]);
-	}
-	printk("\n");
-#endif
-}
-
-
-static inline void debug_desc(u32 phys, struct desc *desc)
-{
-#if DEBUG_DESC
-	printk(KERN_DEBUG "%X: %X %3X %3X %08X %2X < %2X %4X %X"
-	       " %X %X %02X%02X%02X%02X%02X%02X < %02X%02X%02X%02X%02X%02X\n",
-	       phys, desc->next, desc->buf_len, desc->pkt_len,
-	       desc->data, desc->dest_id, desc->src_id, desc->flags,
-	       desc->qos, desc->padlen, desc->vlan_tci,
-	       desc->dst_mac_0, desc->dst_mac_1, desc->dst_mac_2,
-	       desc->dst_mac_3, desc->dst_mac_4, desc->dst_mac_5,
-	       desc->src_mac_0, desc->src_mac_1, desc->src_mac_2,
-	       desc->src_mac_3, desc->src_mac_4, desc->src_mac_5);
-#endif
-}
-
-static inline int queue_get_desc(unsigned int queue, struct port *port,
-				 int is_tx)
-{
-	u32 phys, tab_phys, n_desc;
-	struct desc *tab;
-
-	if (!(phys = qmgr_get_entry(queue)))
-		return -1;
-
-	phys &= ~0x1F; /* mask out non-address bits */
-	tab_phys = is_tx ? tx_desc_phys(port, 0) : rx_desc_phys(port, 0);
-	tab = is_tx ? tx_desc_ptr(port, 0) : rx_desc_ptr(port, 0);
-	n_desc = (phys - tab_phys) / sizeof(struct desc);
-	BUG_ON(n_desc >= (is_tx ? TX_DESCS : RX_DESCS));
-	debug_desc(phys, &tab[n_desc]);
-	BUG_ON(tab[n_desc].next);
-	return n_desc;
-}
-
-static inline void queue_put_desc(unsigned int queue, u32 phys,
-				  struct desc *desc)
-{
-	debug_desc(phys, desc);
-	BUG_ON(phys & 0x1F);
-	qmgr_put_entry(queue, phys);
-	/* Don't check for queue overflow here, we've allocated sufficient
-	   length and queues >= 32 don't support this check anyway. */
-}
-
-
-static inline void dma_unmap_tx(struct port *port, struct desc *desc)
-{
-#ifdef __ARMEB__
-	dma_unmap_single(&port->netdev->dev, desc->data,
-			 desc->buf_len, DMA_TO_DEVICE);
-#else
-	dma_unmap_single(&port->netdev->dev, desc->data & ~3,
-			 ALIGN((desc->data & 3) + desc->buf_len, 4),
-			 DMA_TO_DEVICE);
-#endif
-}
-
-
-static void eth_rx_irq(void *pdev)
-{
-	struct net_device *dev = pdev;
-	struct port *port = netdev_priv(dev);
-
-#if DEBUG_RX
-	printk(KERN_DEBUG "%s: eth_rx_irq\n", dev->name);
-#endif
-	qmgr_disable_irq(port->plat->rxq);
-	napi_schedule(&port->napi);
-}
-
-static int eth_poll(struct napi_struct *napi, int budget)
-{
-	struct port *port = container_of(napi, struct port, napi);
-	struct net_device *dev = port->netdev;
-	unsigned int rxq = port->plat->rxq, rxfreeq = RXFREE_QUEUE(port->id);
-	int received = 0;
-
-#if DEBUG_RX
-	printk(KERN_DEBUG "%s: eth_poll\n", dev->name);
-#endif
-
-	while (received < budget) {
-		struct sk_buff *skb;
-		struct desc *desc;
-		int n;
-#ifdef __ARMEB__
-		struct sk_buff *temp;
-		u32 phys;
-#endif
-
-		if ((n = queue_get_desc(rxq, port, 0)) < 0) {
-#if DEBUG_RX
-			printk(KERN_DEBUG "%s: eth_poll napi_complete\n",
-			       dev->name);
-#endif
-			napi_complete(napi);
-			qmgr_enable_irq(rxq);
-			if (!qmgr_stat_below_low_watermark(rxq) &&
-			    napi_reschedule(napi)) { /* not empty again */
-#if DEBUG_RX
-				printk(KERN_DEBUG "%s: eth_poll"
-				       " napi_reschedule successed\n",
-				       dev->name);
-#endif
-				qmgr_disable_irq(rxq);
-				continue;
-			}
-#if DEBUG_RX
-			printk(KERN_DEBUG "%s: eth_poll all done\n",
-			       dev->name);
-#endif
-			return received; /* all work done */
-		}
-
-		desc = rx_desc_ptr(port, n);
-
-#ifdef __ARMEB__
-		if ((skb = netdev_alloc_skb(dev, RX_BUFF_SIZE))) {
-			phys = dma_map_single(&dev->dev, skb->data,
-					      RX_BUFF_SIZE, DMA_FROM_DEVICE);
-			if (dma_mapping_error(&dev->dev, phys)) {
-				dev_kfree_skb(skb);
-				skb = NULL;
-			}
-		}
-#else
-		skb = netdev_alloc_skb(dev,
-				       ALIGN(NET_IP_ALIGN + desc->pkt_len, 4));
-#endif
-
-		if (!skb) {
-			dev->stats.rx_dropped++;
-			/* put the desc back on RX-ready queue */
-			desc->buf_len = MAX_MRU;
-			desc->pkt_len = 0;
-			queue_put_desc(rxfreeq, rx_desc_phys(port, n), desc);
-			continue;
-		}
-
-		/* process received frame */
-#ifdef __ARMEB__
-		temp = skb;
-		skb = port->rx_buff_tab[n];
-		dma_unmap_single(&dev->dev, desc->data - NET_IP_ALIGN,
-				 RX_BUFF_SIZE, DMA_FROM_DEVICE);
-#else
-		dma_sync_single_for_cpu(&dev->dev, desc->data - NET_IP_ALIGN,
-					RX_BUFF_SIZE, DMA_FROM_DEVICE);
-		memcpy_swab32((u32 *)skb->data, (u32 *)port->rx_buff_tab[n],
-			      ALIGN(NET_IP_ALIGN + desc->pkt_len, 4) / 4);
-#endif
-		skb_reserve(skb, NET_IP_ALIGN);
-		skb_put(skb, desc->pkt_len);
-
-		debug_pkt(dev, "eth_poll", skb->data, skb->len);
-
-		ixp_rx_timestamp(port, skb);
-		skb->protocol = eth_type_trans(skb, dev);
-		dev->stats.rx_packets++;
-		dev->stats.rx_bytes += skb->len;
-		netif_receive_skb(skb);
-
-		/* put the new buffer on RX-free queue */
-#ifdef __ARMEB__
-		port->rx_buff_tab[n] = temp;
-		desc->data = phys + NET_IP_ALIGN;
-#endif
-		desc->buf_len = MAX_MRU;
-		desc->pkt_len = 0;
-		queue_put_desc(rxfreeq, rx_desc_phys(port, n), desc);
-		received++;
-	}
-
-#if DEBUG_RX
-	printk(KERN_DEBUG "eth_poll(): end, not all work done\n");
-#endif
-	return received;		/* not all work done */
-}
-
-
-static void eth_txdone_irq(void *unused)
-{
-	u32 phys;
-
-#if DEBUG_TX
-	printk(KERN_DEBUG DRV_NAME ": eth_txdone_irq\n");
-#endif
-	while ((phys = qmgr_get_entry(TXDONE_QUEUE)) != 0) {
-		u32 npe_id, n_desc;
-		struct port *port;
-		struct desc *desc;
-		int start;
-
-		npe_id = phys & 3;
-		BUG_ON(npe_id >= MAX_NPES);
-		port = npe_port_tab[npe_id];
-		BUG_ON(!port);
-		phys &= ~0x1F; /* mask out non-address bits */
-		n_desc = (phys - tx_desc_phys(port, 0)) / sizeof(struct desc);
-		BUG_ON(n_desc >= TX_DESCS);
-		desc = tx_desc_ptr(port, n_desc);
-		debug_desc(phys, desc);
-
-		if (port->tx_buff_tab[n_desc]) { /* not the draining packet */
-			port->netdev->stats.tx_packets++;
-			port->netdev->stats.tx_bytes += desc->pkt_len;
-
-			dma_unmap_tx(port, desc);
-#if DEBUG_TX
-			printk(KERN_DEBUG "%s: eth_txdone_irq free %p\n",
-			       port->netdev->name, port->tx_buff_tab[n_desc]);
-#endif
-			free_buffer_irq(port->tx_buff_tab[n_desc]);
-			port->tx_buff_tab[n_desc] = NULL;
-		}
-
-		start = qmgr_stat_below_low_watermark(port->plat->txreadyq);
-		queue_put_desc(port->plat->txreadyq, phys, desc);
-		if (start) { /* TX-ready queue was empty */
-#if DEBUG_TX
-			printk(KERN_DEBUG "%s: eth_txdone_irq xmit ready\n",
-			       port->netdev->name);
-#endif
-			netif_wake_queue(port->netdev);
-		}
-	}
-}
-
-static int eth_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct port *port = netdev_priv(dev);
-	unsigned int txreadyq = port->plat->txreadyq;
-	int len, offset, bytes, n;
-	void *mem;
-	u32 phys;
-	struct desc *desc;
-
-#if DEBUG_TX
-	printk(KERN_DEBUG "%s: eth_xmit\n", dev->name);
-#endif
-
-	if (unlikely(skb->len > MAX_MRU)) {
-		dev_kfree_skb(skb);
-		dev->stats.tx_errors++;
-		return NETDEV_TX_OK;
-	}
-
-	debug_pkt(dev, "eth_xmit", skb->data, skb->len);
-
-	len = skb->len;
-#ifdef __ARMEB__
-	offset = 0; /* no need to keep alignment */
-	bytes = len;
-	mem = skb->data;
-#else
-	offset = (int)skb->data & 3; /* keep 32-bit alignment */
-	bytes = ALIGN(offset + len, 4);
-	if (!(mem = kmalloc(bytes, GFP_ATOMIC))) {
-		dev_kfree_skb(skb);
-		dev->stats.tx_dropped++;
-		return NETDEV_TX_OK;
-	}
-	memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
-#endif
-
-	phys = dma_map_single(&dev->dev, mem, bytes, DMA_TO_DEVICE);
-	if (dma_mapping_error(&dev->dev, phys)) {
-		dev_kfree_skb(skb);
-#ifndef __ARMEB__
-		kfree(mem);
-#endif
-		dev->stats.tx_dropped++;
-		return NETDEV_TX_OK;
-	}
-
-	n = queue_get_desc(txreadyq, port, 1);
-	BUG_ON(n < 0);
-	desc = tx_desc_ptr(port, n);
-
-#ifdef __ARMEB__
-	port->tx_buff_tab[n] = skb;
-#else
-	port->tx_buff_tab[n] = mem;
-#endif
-	desc->data = phys + offset;
-	desc->buf_len = desc->pkt_len = len;
-
-	/* NPE firmware pads short frames with zeros internally */
-	wmb();
-	queue_put_desc(TX_QUEUE(port->id), tx_desc_phys(port, n), desc);
-
-	if (qmgr_stat_below_low_watermark(txreadyq)) { /* empty */
-#if DEBUG_TX
-		printk(KERN_DEBUG "%s: eth_xmit queue full\n", dev->name);
-#endif
-		netif_stop_queue(dev);
-		/* we could miss TX ready interrupt */
-		/* really empty in fact */
-		if (!qmgr_stat_below_low_watermark(txreadyq)) {
-#if DEBUG_TX
-			printk(KERN_DEBUG "%s: eth_xmit ready again\n",
-			       dev->name);
-#endif
-			netif_wake_queue(dev);
-		}
-	}
-
-#if DEBUG_TX
-	printk(KERN_DEBUG "%s: eth_xmit end\n", dev->name);
-#endif
-
-	ixp_tx_timestamp(port, skb);
-	skb_tx_timestamp(skb);
-
-#ifndef __ARMEB__
-	dev_kfree_skb(skb);
-#endif
-	return NETDEV_TX_OK;
-}
-
-
-static void eth_set_mcast_list(struct net_device *dev)
-{
-	struct port *port = netdev_priv(dev);
-	struct netdev_hw_addr *ha;
-	u8 diffs[ETH_ALEN], *addr;
-	int i;
-	static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
-
-	if (dev->flags & IFF_ALLMULTI) {
-		for (i = 0; i < ETH_ALEN; i++) {
-			__raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
-			__raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
-		}
-		__raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
-			&port->regs->rx_control[0]);
-		return;
-	}
-
-	if ((dev->flags & IFF_PROMISC) || netdev_mc_empty(dev)) {
-		__raw_writel(DEFAULT_RX_CNTRL0 & ~RX_CNTRL0_ADDR_FLTR_EN,
-			     &port->regs->rx_control[0]);
-		return;
-	}
-
-	memset(diffs, 0, ETH_ALEN);
-
-	addr = NULL;
-	netdev_for_each_mc_addr(ha, dev) {
-		if (!addr)
-			addr = ha->addr; /* first MAC address */
-		for (i = 0; i < ETH_ALEN; i++)
-			diffs[i] |= addr[i] ^ ha->addr[i];
-	}
-
-	for (i = 0; i < ETH_ALEN; i++) {
-		__raw_writel(addr[i], &port->regs->mcast_addr[i]);
-		__raw_writel(~diffs[i], &port->regs->mcast_mask[i]);
-	}
-
-	__raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
-		     &port->regs->rx_control[0]);
-}
-
-
-static int eth_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
-{
-	struct port *port = netdev_priv(dev);
-
-	if (!netif_running(dev))
-		return -EINVAL;
-
-	if (cpu_is_ixp46x() && cmd == SIOCSHWTSTAMP)
-		return hwtstamp_ioctl(dev, req, cmd);
-
-	return phy_mii_ioctl(port->phydev, req, cmd);
-}
-
-/* ethtool support */
-
-static void ixp4xx_get_drvinfo(struct net_device *dev,
-			       struct ethtool_drvinfo *info)
-{
-	struct port *port = netdev_priv(dev);
-	strcpy(info->driver, DRV_NAME);
-	snprintf(info->fw_version, sizeof(info->fw_version), "%u:%u:%u:%u",
-		 port->firmware[0], port->firmware[1],
-		 port->firmware[2], port->firmware[3]);
-	strcpy(info->bus_info, "internal");
-}
-
-static int ixp4xx_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
-	struct port *port = netdev_priv(dev);
-	return phy_ethtool_gset(port->phydev, cmd);
-}
-
-static int ixp4xx_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
-	struct port *port = netdev_priv(dev);
-	return phy_ethtool_sset(port->phydev, cmd);
-}
-
-static int ixp4xx_nway_reset(struct net_device *dev)
-{
-	struct port *port = netdev_priv(dev);
-	return phy_start_aneg(port->phydev);
-}
-
-static const struct ethtool_ops ixp4xx_ethtool_ops = {
-	.get_drvinfo = ixp4xx_get_drvinfo,
-	.get_settings = ixp4xx_get_settings,
-	.set_settings = ixp4xx_set_settings,
-	.nway_reset = ixp4xx_nway_reset,
-	.get_link = ethtool_op_get_link,
-};
-
-
-static int request_queues(struct port *port)
-{
-	int err;
-
-	err = qmgr_request_queue(RXFREE_QUEUE(port->id), RX_DESCS, 0, 0,
-				 "%s:RX-free", port->netdev->name);
-	if (err)
-		return err;
-
-	err = qmgr_request_queue(port->plat->rxq, RX_DESCS, 0, 0,
-				 "%s:RX", port->netdev->name);
-	if (err)
-		goto rel_rxfree;
-
-	err = qmgr_request_queue(TX_QUEUE(port->id), TX_DESCS, 0, 0,
-				 "%s:TX", port->netdev->name);
-	if (err)
-		goto rel_rx;
-
-	err = qmgr_request_queue(port->plat->txreadyq, TX_DESCS, 0, 0,
-				 "%s:TX-ready", port->netdev->name);
-	if (err)
-		goto rel_tx;
-
-	/* TX-done queue handles skbs sent out by the NPEs */
-	if (!ports_open) {
-		err = qmgr_request_queue(TXDONE_QUEUE, TXDONE_QUEUE_LEN, 0, 0,
-					 "%s:TX-done", DRV_NAME);
-		if (err)
-			goto rel_txready;
-	}
-	return 0;
-
-rel_txready:
-	qmgr_release_queue(port->plat->txreadyq);
-rel_tx:
-	qmgr_release_queue(TX_QUEUE(port->id));
-rel_rx:
-	qmgr_release_queue(port->plat->rxq);
-rel_rxfree:
-	qmgr_release_queue(RXFREE_QUEUE(port->id));
-	printk(KERN_DEBUG "%s: unable to request hardware queues\n",
-	       port->netdev->name);
-	return err;
-}
-
-static void release_queues(struct port *port)
-{
-	qmgr_release_queue(RXFREE_QUEUE(port->id));
-	qmgr_release_queue(port->plat->rxq);
-	qmgr_release_queue(TX_QUEUE(port->id));
-	qmgr_release_queue(port->plat->txreadyq);
-
-	if (!ports_open)
-		qmgr_release_queue(TXDONE_QUEUE);
-}
-
-static int init_queues(struct port *port)
-{
-	int i;
-
-	if (!ports_open)
-		if (!(dma_pool = dma_pool_create(DRV_NAME, NULL,
-						 POOL_ALLOC_SIZE, 32, 0)))
-			return -ENOMEM;
-
-	if (!(port->desc_tab = dma_pool_alloc(dma_pool, GFP_KERNEL,
-					      &port->desc_tab_phys)))
-		return -ENOMEM;
-	memset(port->desc_tab, 0, POOL_ALLOC_SIZE);
-	memset(port->rx_buff_tab, 0, sizeof(port->rx_buff_tab)); /* tables */
-	memset(port->tx_buff_tab, 0, sizeof(port->tx_buff_tab));
-
-	/* Setup RX buffers */
-	for (i = 0; i < RX_DESCS; i++) {
-		struct desc *desc = rx_desc_ptr(port, i);
-		buffer_t *buff; /* skb or kmalloc()ated memory */
-		void *data;
-#ifdef __ARMEB__
-		if (!(buff = netdev_alloc_skb(port->netdev, RX_BUFF_SIZE)))
-			return -ENOMEM;
-		data = buff->data;
-#else
-		if (!(buff = kmalloc(RX_BUFF_SIZE, GFP_KERNEL)))
-			return -ENOMEM;
-		data = buff;
-#endif
-		desc->buf_len = MAX_MRU;
-		desc->data = dma_map_single(&port->netdev->dev, data,
-					    RX_BUFF_SIZE, DMA_FROM_DEVICE);
-		if (dma_mapping_error(&port->netdev->dev, desc->data)) {
-			free_buffer(buff);
-			return -EIO;
-		}
-		desc->data += NET_IP_ALIGN;
-		port->rx_buff_tab[i] = buff;
-	}
-
-	return 0;
-}
-
-static void destroy_queues(struct port *port)
-{
-	int i;
-
-	if (port->desc_tab) {
-		for (i = 0; i < RX_DESCS; i++) {
-			struct desc *desc = rx_desc_ptr(port, i);
-			buffer_t *buff = port->rx_buff_tab[i];
-			if (buff) {
-				dma_unmap_single(&port->netdev->dev,
-						 desc->data - NET_IP_ALIGN,
-						 RX_BUFF_SIZE, DMA_FROM_DEVICE);
-				free_buffer(buff);
-			}
-		}
-		for (i = 0; i < TX_DESCS; i++) {
-			struct desc *desc = tx_desc_ptr(port, i);
-			buffer_t *buff = port->tx_buff_tab[i];
-			if (buff) {
-				dma_unmap_tx(port, desc);
-				free_buffer(buff);
-			}
-		}
-		dma_pool_free(dma_pool, port->desc_tab, port->desc_tab_phys);
-		port->desc_tab = NULL;
-	}
-
-	if (!ports_open && dma_pool) {
-		dma_pool_destroy(dma_pool);
-		dma_pool = NULL;
-	}
-}
-
-static int eth_open(struct net_device *dev)
-{
-	struct port *port = netdev_priv(dev);
-	struct npe *npe = port->npe;
-	struct msg msg;
-	int i, err;
-
-	if (!npe_running(npe)) {
-		err = npe_load_firmware(npe, npe_name(npe), &dev->dev);
-		if (err)
-			return err;
-
-		if (npe_recv_message(npe, &msg, "ETH_GET_STATUS")) {
-			printk(KERN_ERR "%s: %s not responding\n", dev->name,
-			       npe_name(npe));
-			return -EIO;
-		}
-		port->firmware[0] = msg.byte4;
-		port->firmware[1] = msg.byte5;
-		port->firmware[2] = msg.byte6;
-		port->firmware[3] = msg.byte7;
-	}
-
-	memset(&msg, 0, sizeof(msg));
-	msg.cmd = NPE_VLAN_SETRXQOSENTRY;
-	msg.eth_id = port->id;
-	msg.byte5 = port->plat->rxq | 0x80;
-	msg.byte7 = port->plat->rxq << 4;
-	for (i = 0; i < 8; i++) {
-		msg.byte3 = i;
-		if (npe_send_recv_message(port->npe, &msg, "ETH_SET_RXQ"))
-			return -EIO;
-	}
-
-	msg.cmd = NPE_EDB_SETPORTADDRESS;
-	msg.eth_id = PHYSICAL_ID(port->id);
-	msg.byte2 = dev->dev_addr[0];
-	msg.byte3 = dev->dev_addr[1];
-	msg.byte4 = dev->dev_addr[2];
-	msg.byte5 = dev->dev_addr[3];
-	msg.byte6 = dev->dev_addr[4];
-	msg.byte7 = dev->dev_addr[5];
-	if (npe_send_recv_message(port->npe, &msg, "ETH_SET_MAC"))
-		return -EIO;
-
-	memset(&msg, 0, sizeof(msg));
-	msg.cmd = NPE_FW_SETFIREWALLMODE;
-	msg.eth_id = port->id;
-	if (npe_send_recv_message(port->npe, &msg, "ETH_SET_FIREWALL_MODE"))
-		return -EIO;
-
-	if ((err = request_queues(port)) != 0)
-		return err;
-
-	if ((err = init_queues(port)) != 0) {
-		destroy_queues(port);
-		release_queues(port);
-		return err;
-	}
-
-	port->speed = 0;	/* force "link up" message */
-	phy_start(port->phydev);
-
-	for (i = 0; i < ETH_ALEN; i++)
-		__raw_writel(dev->dev_addr[i], &port->regs->hw_addr[i]);
-	__raw_writel(0x08, &port->regs->random_seed);
-	__raw_writel(0x12, &port->regs->partial_empty_threshold);
-	__raw_writel(0x30, &port->regs->partial_full_threshold);
-	__raw_writel(0x08, &port->regs->tx_start_bytes);
-	__raw_writel(0x15, &port->regs->tx_deferral);
-	__raw_writel(0x08, &port->regs->tx_2part_deferral[0]);
-	__raw_writel(0x07, &port->regs->tx_2part_deferral[1]);
-	__raw_writel(0x80, &port->regs->slot_time);
-	__raw_writel(0x01, &port->regs->int_clock_threshold);
-
-	/* Populate queues with buffers, no failure after this point */
-	for (i = 0; i < TX_DESCS; i++)
-		queue_put_desc(port->plat->txreadyq,
-			       tx_desc_phys(port, i), tx_desc_ptr(port, i));
-
-	for (i = 0; i < RX_DESCS; i++)
-		queue_put_desc(RXFREE_QUEUE(port->id),
-			       rx_desc_phys(port, i), rx_desc_ptr(port, i));
-
-	__raw_writel(TX_CNTRL1_RETRIES, &port->regs->tx_control[1]);
-	__raw_writel(DEFAULT_TX_CNTRL0, &port->regs->tx_control[0]);
-	__raw_writel(0, &port->regs->rx_control[1]);
-	__raw_writel(DEFAULT_RX_CNTRL0, &port->regs->rx_control[0]);
-
-	napi_enable(&port->napi);
-	eth_set_mcast_list(dev);
-	netif_start_queue(dev);
-
-	qmgr_set_irq(port->plat->rxq, QUEUE_IRQ_SRC_NOT_EMPTY,
-		     eth_rx_irq, dev);
-	if (!ports_open) {
-		qmgr_set_irq(TXDONE_QUEUE, QUEUE_IRQ_SRC_NOT_EMPTY,
-			     eth_txdone_irq, NULL);
-		qmgr_enable_irq(TXDONE_QUEUE);
-	}
-	ports_open++;
-	/* we may already have RX data, enables IRQ */
-	napi_schedule(&port->napi);
-	return 0;
-}
-
-static int eth_close(struct net_device *dev)
-{
-	struct port *port = netdev_priv(dev);
-	struct msg msg;
-	int buffs = RX_DESCS; /* allocated RX buffers */
-	int i;
-
-	ports_open--;
-	qmgr_disable_irq(port->plat->rxq);
-	napi_disable(&port->napi);
-	netif_stop_queue(dev);
-
-	while (queue_get_desc(RXFREE_QUEUE(port->id), port, 0) >= 0)
-		buffs--;
-
-	memset(&msg, 0, sizeof(msg));
-	msg.cmd = NPE_SETLOOPBACK_MODE;
-	msg.eth_id = port->id;
-	msg.byte3 = 1;
-	if (npe_send_recv_message(port->npe, &msg, "ETH_ENABLE_LOOPBACK"))
-		printk(KERN_CRIT "%s: unable to enable loopback\n", dev->name);
-
-	i = 0;
-	do {			/* drain RX buffers */
-		while (queue_get_desc(port->plat->rxq, port, 0) >= 0)
-			buffs--;
-		if (!buffs)
-			break;
-		if (qmgr_stat_empty(TX_QUEUE(port->id))) {
-			/* we have to inject some packet */
-			struct desc *desc;
-			u32 phys;
-			int n = queue_get_desc(port->plat->txreadyq, port, 1);
-			BUG_ON(n < 0);
-			desc = tx_desc_ptr(port, n);
-			phys = tx_desc_phys(port, n);
-			desc->buf_len = desc->pkt_len = 1;
-			wmb();
-			queue_put_desc(TX_QUEUE(port->id), phys, desc);
-		}
-		udelay(1);
-	} while (++i < MAX_CLOSE_WAIT);
-
-	if (buffs)
-		printk(KERN_CRIT "%s: unable to drain RX queue, %i buffer(s)"
-		       " left in NPE\n", dev->name, buffs);
-#if DEBUG_CLOSE
-	if (!buffs)
-		printk(KERN_DEBUG "Draining RX queue took %i cycles\n", i);
-#endif
-
-	buffs = TX_DESCS;
-	while (queue_get_desc(TX_QUEUE(port->id), port, 1) >= 0)
-		buffs--; /* cancel TX */
-
-	i = 0;
-	do {
-		while (queue_get_desc(port->plat->txreadyq, port, 1) >= 0)
-			buffs--;
-		if (!buffs)
-			break;
-	} while (++i < MAX_CLOSE_WAIT);
-
-	if (buffs)
-		printk(KERN_CRIT "%s: unable to drain TX queue, %i buffer(s) "
-		       "left in NPE\n", dev->name, buffs);
-#if DEBUG_CLOSE
-	if (!buffs)
-		printk(KERN_DEBUG "Draining TX queues took %i cycles\n", i);
-#endif
-
-	msg.byte3 = 0;
-	if (npe_send_recv_message(port->npe, &msg, "ETH_DISABLE_LOOPBACK"))
-		printk(KERN_CRIT "%s: unable to disable loopback\n",
-		       dev->name);
-
-	phy_stop(port->phydev);
-
-	if (!ports_open)
-		qmgr_disable_irq(TXDONE_QUEUE);
-	destroy_queues(port);
-	release_queues(port);
-	return 0;
-}
-
-static const struct net_device_ops ixp4xx_netdev_ops = {
-	.ndo_open = eth_open,
-	.ndo_stop = eth_close,
-	.ndo_start_xmit = eth_xmit,
-	.ndo_set_multicast_list = eth_set_mcast_list,
-	.ndo_do_ioctl = eth_ioctl,
-	.ndo_change_mtu = eth_change_mtu,
-	.ndo_set_mac_address = eth_mac_addr,
-	.ndo_validate_addr = eth_validate_addr,
-};
-
-static int __devinit eth_init_one(struct platform_device *pdev)
-{
-	struct port *port;
-	struct net_device *dev;
-	struct eth_plat_info *plat = pdev->dev.platform_data;
-	u32 regs_phys;
-	char phy_id[MII_BUS_ID_SIZE + 3];
-	int err;
-
-	if (ptp_filter_init(ptp_filter, ARRAY_SIZE(ptp_filter))) {
-		pr_err("ixp4xx_eth: bad ptp filter\n");
-		return -EINVAL;
-	}
-
-	if (!(dev = alloc_etherdev(sizeof(struct port))))
-		return -ENOMEM;
-
-	SET_NETDEV_DEV(dev, &pdev->dev);
-	port = netdev_priv(dev);
-	port->netdev = dev;
-	port->id = pdev->id;
-
-	switch (port->id) {
-	case IXP4XX_ETH_NPEA:
-		port->regs = (struct eth_regs __iomem *)IXP4XX_EthA_BASE_VIRT;
-		regs_phys  = IXP4XX_EthA_BASE_PHYS;
-		break;
-	case IXP4XX_ETH_NPEB:
-		port->regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
-		regs_phys  = IXP4XX_EthB_BASE_PHYS;
-		break;
-	case IXP4XX_ETH_NPEC:
-		port->regs = (struct eth_regs __iomem *)IXP4XX_EthC_BASE_VIRT;
-		regs_phys  = IXP4XX_EthC_BASE_PHYS;
-		break;
-	default:
-		err = -ENODEV;
-		goto err_free;
-	}
-
-	dev->netdev_ops = &ixp4xx_netdev_ops;
-	dev->ethtool_ops = &ixp4xx_ethtool_ops;
-	dev->tx_queue_len = 100;
-
-	netif_napi_add(dev, &port->napi, eth_poll, NAPI_WEIGHT);
-
-	if (!(port->npe = npe_request(NPE_ID(port->id)))) {
-		err = -EIO;
-		goto err_free;
-	}
-
-	port->mem_res = request_mem_region(regs_phys, REGS_SIZE, dev->name);
-	if (!port->mem_res) {
-		err = -EBUSY;
-		goto err_npe_rel;
-	}
-
-	port->plat = plat;
-	npe_port_tab[NPE_ID(port->id)] = port;
-	memcpy(dev->dev_addr, plat->hwaddr, ETH_ALEN);
-
-	platform_set_drvdata(pdev, dev);
-
-	__raw_writel(DEFAULT_CORE_CNTRL | CORE_RESET,
-		     &port->regs->core_control);
-	udelay(50);
-	__raw_writel(DEFAULT_CORE_CNTRL, &port->regs->core_control);
-	udelay(50);
-
-	snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, "0", plat->phy);
-	port->phydev = phy_connect(dev, phy_id, &ixp4xx_adjust_link, 0,
-				   PHY_INTERFACE_MODE_MII);
-	if (IS_ERR(port->phydev)) {
-		err = PTR_ERR(port->phydev);
-		goto err_free_mem;
-	}
-
-	port->phydev->irq = PHY_POLL;
-
-	if ((err = register_netdev(dev)))
-		goto err_phy_dis;
-
-	printk(KERN_INFO "%s: MII PHY %i on %s\n", dev->name, plat->phy,
-	       npe_name(port->npe));
-
-	return 0;
-
-err_phy_dis:
-	phy_disconnect(port->phydev);
-err_free_mem:
-	npe_port_tab[NPE_ID(port->id)] = NULL;
-	platform_set_drvdata(pdev, NULL);
-	release_resource(port->mem_res);
-err_npe_rel:
-	npe_release(port->npe);
-err_free:
-	free_netdev(dev);
-	return err;
-}
-
-static int __devexit eth_remove_one(struct platform_device *pdev)
-{
-	struct net_device *dev = platform_get_drvdata(pdev);
-	struct port *port = netdev_priv(dev);
-
-	unregister_netdev(dev);
-	phy_disconnect(port->phydev);
-	npe_port_tab[NPE_ID(port->id)] = NULL;
-	platform_set_drvdata(pdev, NULL);
-	npe_release(port->npe);
-	release_resource(port->mem_res);
-	free_netdev(dev);
-	return 0;
-}
-
-static struct platform_driver ixp4xx_eth_driver = {
-	.driver.name	= DRV_NAME,
-	.probe		= eth_init_one,
-	.remove		= eth_remove_one,
-};
-
-static int __init eth_init_module(void)
-{
-	int err;
-	if ((err = ixp4xx_mdio_register()))
-		return err;
-	return platform_driver_register(&ixp4xx_eth_driver);
-}
-
-static void __exit eth_cleanup_module(void)
-{
-	platform_driver_unregister(&ixp4xx_eth_driver);
-	ixp4xx_mdio_remove();
-}
-
-MODULE_AUTHOR("Krzysztof Halasa");
-MODULE_DESCRIPTION("Intel IXP4xx Ethernet driver");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:ixp4xx_eth");
-module_init(eth_init_module);
-module_exit(eth_cleanup_module);