freescale: Move the Freescale drivers

Move the Freescale drivers into drivers/net/ethernet/freescale/ and
make the necessary Kconfig and Makefile changes.

CC: Sandeep Gopalpet <sandeep.kumar@freescale.com>
CC: Andy Fleming <afleming@freescale.com>
CC: Shlomi Gridish <gridish@freescale.com>
CC: Li Yang <leoli@freescale.com>
CC: Pantelis Antoniou <pantelis.antoniou@gmail.com>
CC: Vitaly Bordug <vbordug@ru.mvista.com>
CC: Dan Malek <dmalek@jlc.net>
CC: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 3291 deletions

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
deleted file mode 100644
index 2659daad783..00000000000
--- a/drivers/net/gianfar.c
+++ /dev/null
@@ -1,3291 +0,0 @@
-/*
- * drivers/net/gianfar.c
- *
- * Gianfar Ethernet Driver
- * This driver is designed for the non-CPM ethernet controllers
- * on the 85xx and 83xx family of integrated processors
- * Based on 8260_io/fcc_enet.c
- *
- * Author: Andy Fleming
- * Maintainer: Kumar Gala
- * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com>
- *
- * Copyright 2002-2009, 2011 Freescale Semiconductor, Inc.
- * Copyright 2007 MontaVista Software, Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- *  Gianfar:  AKA Lambda Draconis, "Dragon"
- *  RA 11 31 24.2
- *  Dec +69 19 52
- *  V 3.84
- *  B-V +1.62
- *
- *  Theory of operation
- *
- *  The driver is initialized through of_device. Configuration information
- *  is therefore conveyed through an OF-style device tree.
- *
- *  The Gianfar Ethernet Controller uses a ring of buffer
- *  descriptors.  The beginning is indicated by a register
- *  pointing to the physical address of the start of the ring.
- *  The end is determined by a "wrap" bit being set in the
- *  last descriptor of the ring.
- *
- *  When a packet is received, the RXF bit in the
- *  IEVENT register is set, triggering an interrupt when the
- *  corresponding bit in the IMASK register is also set (if
- *  interrupt coalescing is active, then the interrupt may not
- *  happen immediately, but will wait until either a set number
- *  of frames or amount of time have passed).  In NAPI, the
- *  interrupt handler will signal there is work to be done, and
- *  exit. This method will start at the last known empty
- *  descriptor, and process every subsequent descriptor until there
- *  are none left with data (NAPI will stop after a set number of
- *  packets to give time to other tasks, but will eventually
- *  process all the packets).  The data arrives inside a
- *  pre-allocated skb, and so after the skb is passed up to the
- *  stack, a new skb must be allocated, and the address field in
- *  the buffer descriptor must be updated to indicate this new
- *  skb.
- *
- *  When the kernel requests that a packet be transmitted, the
- *  driver starts where it left off last time, and points the
- *  descriptor at the buffer which was passed in.  The driver
- *  then informs the DMA engine that there are packets ready to
- *  be transmitted.  Once the controller is finished transmitting
- *  the packet, an interrupt may be triggered (under the same
- *  conditions as for reception, but depending on the TXF bit).
- *  The driver then cleans up the buffer.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#define DEBUG
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/if_vlan.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/of_mdio.h>
-#include <linux/of_platform.h>
-#include <linux/ip.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
-#include <linux/in.h>
-#include <linux/net_tstamp.h>
-
-#include <asm/io.h>
-#include <asm/reg.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/crc32.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-#include <linux/phy_fixed.h>
-#include <linux/of.h>
-#include <linux/of_net.h>
-
-#include "gianfar.h"
-#include "fsl_pq_mdio.h"
-
-#define TX_TIMEOUT      (1*HZ)
-#undef BRIEF_GFAR_ERRORS
-#undef VERBOSE_GFAR_ERRORS
-
-const char gfar_driver_name[] = "Gianfar Ethernet";
-const char gfar_driver_version[] = "1.3";
-
-static int gfar_enet_open(struct net_device *dev);
-static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static void gfar_reset_task(struct work_struct *work);
-static void gfar_timeout(struct net_device *dev);
-static int gfar_close(struct net_device *dev);
-struct sk_buff *gfar_new_skb(struct net_device *dev);
-static void gfar_new_rxbdp(struct gfar_priv_rx_q *rx_queue, struct rxbd8 *bdp,
-		struct sk_buff *skb);
-static int gfar_set_mac_address(struct net_device *dev);
-static int gfar_change_mtu(struct net_device *dev, int new_mtu);
-static irqreturn_t gfar_error(int irq, void *dev_id);
-static irqreturn_t gfar_transmit(int irq, void *dev_id);
-static irqreturn_t gfar_interrupt(int irq, void *dev_id);
-static void adjust_link(struct net_device *dev);
-static void init_registers(struct net_device *dev);
-static int init_phy(struct net_device *dev);
-static int gfar_probe(struct platform_device *ofdev);
-static int gfar_remove(struct platform_device *ofdev);
-static void free_skb_resources(struct gfar_private *priv);
-static void gfar_set_multi(struct net_device *dev);
-static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr);
-static void gfar_configure_serdes(struct net_device *dev);
-static int gfar_poll(struct napi_struct *napi, int budget);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void gfar_netpoll(struct net_device *dev);
-#endif
-int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit);
-static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue);
-static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
-			      int amount_pull);
-void gfar_halt(struct net_device *dev);
-static void gfar_halt_nodisable(struct net_device *dev);
-void gfar_start(struct net_device *dev);
-static void gfar_clear_exact_match(struct net_device *dev);
-static void gfar_set_mac_for_addr(struct net_device *dev, int num,
-				  const u8 *addr);
-static int gfar_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-
-MODULE_AUTHOR("Freescale Semiconductor, Inc");
-MODULE_DESCRIPTION("Gianfar Ethernet Driver");
-MODULE_LICENSE("GPL");
-
-static void gfar_init_rxbdp(struct gfar_priv_rx_q *rx_queue, struct rxbd8 *bdp,
-			    dma_addr_t buf)
-{
-	u32 lstatus;
-
-	bdp->bufPtr = buf;
-
-	lstatus = BD_LFLAG(RXBD_EMPTY | RXBD_INTERRUPT);
-	if (bdp == rx_queue->rx_bd_base + rx_queue->rx_ring_size - 1)
-		lstatus |= BD_LFLAG(RXBD_WRAP);
-
-	eieio();
-
-	bdp->lstatus = lstatus;
-}
-
-static int gfar_init_bds(struct net_device *ndev)
-{
-	struct gfar_private *priv = netdev_priv(ndev);
-	struct gfar_priv_tx_q *tx_queue = NULL;
-	struct gfar_priv_rx_q *rx_queue = NULL;
-	struct txbd8 *txbdp;
-	struct rxbd8 *rxbdp;
-	int i, j;
-
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		tx_queue = priv->tx_queue[i];
-		/* Initialize some variables in our dev structure */
-		tx_queue->num_txbdfree = tx_queue->tx_ring_size;
-		tx_queue->dirty_tx = tx_queue->tx_bd_base;
-		tx_queue->cur_tx = tx_queue->tx_bd_base;
-		tx_queue->skb_curtx = 0;
-		tx_queue->skb_dirtytx = 0;
-
-		/* Initialize Transmit Descriptor Ring */
-		txbdp = tx_queue->tx_bd_base;
-		for (j = 0; j < tx_queue->tx_ring_size; j++) {
-			txbdp->lstatus = 0;
-			txbdp->bufPtr = 0;
-			txbdp++;
-		}
-
-		/* Set the last descriptor in the ring to indicate wrap */
-		txbdp--;
-		txbdp->status |= TXBD_WRAP;
-	}
-
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		rx_queue = priv->rx_queue[i];
-		rx_queue->cur_rx = rx_queue->rx_bd_base;
-		rx_queue->skb_currx = 0;
-		rxbdp = rx_queue->rx_bd_base;
-
-		for (j = 0; j < rx_queue->rx_ring_size; j++) {
-			struct sk_buff *skb = rx_queue->rx_skbuff[j];
-
-			if (skb) {
-				gfar_init_rxbdp(rx_queue, rxbdp,
-						rxbdp->bufPtr);
-			} else {
-				skb = gfar_new_skb(ndev);
-				if (!skb) {
-					netdev_err(ndev, "Can't allocate RX buffers\n");
-					goto err_rxalloc_fail;
-				}
-				rx_queue->rx_skbuff[j] = skb;
-
-				gfar_new_rxbdp(rx_queue, rxbdp, skb);
-			}
-
-			rxbdp++;
-		}
-
-	}
-
-	return 0;
-
-err_rxalloc_fail:
-	free_skb_resources(priv);
-	return -ENOMEM;
-}
-
-static int gfar_alloc_skb_resources(struct net_device *ndev)
-{
-	void *vaddr;
-	dma_addr_t addr;
-	int i, j, k;
-	struct gfar_private *priv = netdev_priv(ndev);
-	struct device *dev = &priv->ofdev->dev;
-	struct gfar_priv_tx_q *tx_queue = NULL;
-	struct gfar_priv_rx_q *rx_queue = NULL;
-
-	priv->total_tx_ring_size = 0;
-	for (i = 0; i < priv->num_tx_queues; i++)
-		priv->total_tx_ring_size += priv->tx_queue[i]->tx_ring_size;
-
-	priv->total_rx_ring_size = 0;
-	for (i = 0; i < priv->num_rx_queues; i++)
-		priv->total_rx_ring_size += priv->rx_queue[i]->rx_ring_size;
-
-	/* Allocate memory for the buffer descriptors */
-	vaddr = dma_alloc_coherent(dev,
-			sizeof(struct txbd8) * priv->total_tx_ring_size +
-			sizeof(struct rxbd8) * priv->total_rx_ring_size,
-			&addr, GFP_KERNEL);
-	if (!vaddr) {
-		netif_err(priv, ifup, ndev,
-			  "Could not allocate buffer descriptors!\n");
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		tx_queue = priv->tx_queue[i];
-		tx_queue->tx_bd_base = vaddr;
-		tx_queue->tx_bd_dma_base = addr;
-		tx_queue->dev = ndev;
-		/* enet DMA only understands physical addresses */
-		addr    += sizeof(struct txbd8) *tx_queue->tx_ring_size;
-		vaddr   += sizeof(struct txbd8) *tx_queue->tx_ring_size;
-	}
-
-	/* Start the rx descriptor ring where the tx ring leaves off */
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		rx_queue = priv->rx_queue[i];
-		rx_queue->rx_bd_base = vaddr;
-		rx_queue->rx_bd_dma_base = addr;
-		rx_queue->dev = ndev;
-		addr    += sizeof (struct rxbd8) * rx_queue->rx_ring_size;
-		vaddr   += sizeof (struct rxbd8) * rx_queue->rx_ring_size;
-	}
-
-	/* Setup the skbuff rings */
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		tx_queue = priv->tx_queue[i];
-		tx_queue->tx_skbuff = kmalloc(sizeof(*tx_queue->tx_skbuff) *
-				  tx_queue->tx_ring_size, GFP_KERNEL);
-		if (!tx_queue->tx_skbuff) {
-			netif_err(priv, ifup, ndev,
-				  "Could not allocate tx_skbuff\n");
-			goto cleanup;
-		}
-
-		for (k = 0; k < tx_queue->tx_ring_size; k++)
-			tx_queue->tx_skbuff[k] = NULL;
-	}
-
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		rx_queue = priv->rx_queue[i];
-		rx_queue->rx_skbuff = kmalloc(sizeof(*rx_queue->rx_skbuff) *
-				  rx_queue->rx_ring_size, GFP_KERNEL);
-
-		if (!rx_queue->rx_skbuff) {
-			netif_err(priv, ifup, ndev,
-				  "Could not allocate rx_skbuff\n");
-			goto cleanup;
-		}
-
-		for (j = 0; j < rx_queue->rx_ring_size; j++)
-			rx_queue->rx_skbuff[j] = NULL;
-	}
-
-	if (gfar_init_bds(ndev))
-		goto cleanup;
-
-	return 0;
-
-cleanup:
-	free_skb_resources(priv);
-	return -ENOMEM;
-}
-
-static void gfar_init_tx_rx_base(struct gfar_private *priv)
-{
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 __iomem *baddr;
-	int i;
-
-	baddr = &regs->tbase0;
-	for(i = 0; i < priv->num_tx_queues; i++) {
-		gfar_write(baddr, priv->tx_queue[i]->tx_bd_dma_base);
-		baddr	+= 2;
-	}
-
-	baddr = &regs->rbase0;
-	for(i = 0; i < priv->num_rx_queues; i++) {
-		gfar_write(baddr, priv->rx_queue[i]->rx_bd_dma_base);
-		baddr   += 2;
-	}
-}
-
-static void gfar_init_mac(struct net_device *ndev)
-{
-	struct gfar_private *priv = netdev_priv(ndev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 rctrl = 0;
-	u32 tctrl = 0;
-	u32 attrs = 0;
-
-	/* write the tx/rx base registers */
-	gfar_init_tx_rx_base(priv);
-
-	/* Configure the coalescing support */
-	gfar_configure_coalescing(priv, 0xFF, 0xFF);
-
-	if (priv->rx_filer_enable) {
-		rctrl |= RCTRL_FILREN;
-		/* Program the RIR0 reg with the required distribution */
-		gfar_write(&regs->rir0, DEFAULT_RIR0);
-	}
-
-	if (ndev->features & NETIF_F_RXCSUM)
-		rctrl |= RCTRL_CHECKSUMMING;
-
-	if (priv->extended_hash) {
-		rctrl |= RCTRL_EXTHASH;
-
-		gfar_clear_exact_match(ndev);
-		rctrl |= RCTRL_EMEN;
-	}
-
-	if (priv->padding) {
-		rctrl &= ~RCTRL_PAL_MASK;
-		rctrl |= RCTRL_PADDING(priv->padding);
-	}
-
-	/* Insert receive time stamps into padding alignment bytes */
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER) {
-		rctrl &= ~RCTRL_PAL_MASK;
-		rctrl |= RCTRL_PADDING(8);
-		priv->padding = 8;
-	}
-
-	/* Enable HW time stamping if requested from user space */
-	if (priv->hwts_rx_en)
-		rctrl |= RCTRL_PRSDEP_INIT | RCTRL_TS_ENABLE;
-
-	if (ndev->features & NETIF_F_HW_VLAN_RX)
-		rctrl |= RCTRL_VLEX | RCTRL_PRSDEP_INIT;
-
-	/* Init rctrl based on our settings */
-	gfar_write(&regs->rctrl, rctrl);
-
-	if (ndev->features & NETIF_F_IP_CSUM)
-		tctrl |= TCTRL_INIT_CSUM;
-
-	tctrl |= TCTRL_TXSCHED_PRIO;
-
-	gfar_write(&regs->tctrl, tctrl);
-
-	/* Set the extraction length and index */
-	attrs = ATTRELI_EL(priv->rx_stash_size) |
-		ATTRELI_EI(priv->rx_stash_index);
-
-	gfar_write(&regs->attreli, attrs);
-
-	/* Start with defaults, and add stashing or locking
-	 * depending on the approprate variables */
-	attrs = ATTR_INIT_SETTINGS;
-
-	if (priv->bd_stash_en)
-		attrs |= ATTR_BDSTASH;
-
-	if (priv->rx_stash_size != 0)
-		attrs |= ATTR_BUFSTASH;
-
-	gfar_write(&regs->attr, attrs);
-
-	gfar_write(&regs->fifo_tx_thr, priv->fifo_threshold);
-	gfar_write(&regs->fifo_tx_starve, priv->fifo_starve);
-	gfar_write(&regs->fifo_tx_starve_shutoff, priv->fifo_starve_off);
-}
-
-static struct net_device_stats *gfar_get_stats(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	unsigned long rx_packets = 0, rx_bytes = 0, rx_dropped = 0;
-	unsigned long tx_packets = 0, tx_bytes = 0;
-	int i = 0;
-
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		rx_packets += priv->rx_queue[i]->stats.rx_packets;
-		rx_bytes += priv->rx_queue[i]->stats.rx_bytes;
-		rx_dropped += priv->rx_queue[i]->stats.rx_dropped;
-	}
-
-	dev->stats.rx_packets = rx_packets;
-	dev->stats.rx_bytes = rx_bytes;
-	dev->stats.rx_dropped = rx_dropped;
-
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		tx_bytes += priv->tx_queue[i]->stats.tx_bytes;
-		tx_packets += priv->tx_queue[i]->stats.tx_packets;
-	}
-
-	dev->stats.tx_bytes = tx_bytes;
-	dev->stats.tx_packets = tx_packets;
-
-	return &dev->stats;
-}
-
-static const struct net_device_ops gfar_netdev_ops = {
-	.ndo_open = gfar_enet_open,
-	.ndo_start_xmit = gfar_start_xmit,
-	.ndo_stop = gfar_close,
-	.ndo_change_mtu = gfar_change_mtu,
-	.ndo_set_features = gfar_set_features,
-	.ndo_set_multicast_list = gfar_set_multi,
-	.ndo_tx_timeout = gfar_timeout,
-	.ndo_do_ioctl = gfar_ioctl,
-	.ndo_get_stats = gfar_get_stats,
-	.ndo_set_mac_address = eth_mac_addr,
-	.ndo_validate_addr = eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	.ndo_poll_controller = gfar_netpoll,
-#endif
-};
-
-void lock_rx_qs(struct gfar_private *priv)
-{
-	int i = 0x0;
-
-	for (i = 0; i < priv->num_rx_queues; i++)
-		spin_lock(&priv->rx_queue[i]->rxlock);
-}
-
-void lock_tx_qs(struct gfar_private *priv)
-{
-	int i = 0x0;
-
-	for (i = 0; i < priv->num_tx_queues; i++)
-		spin_lock(&priv->tx_queue[i]->txlock);
-}
-
-void unlock_rx_qs(struct gfar_private *priv)
-{
-	int i = 0x0;
-
-	for (i = 0; i < priv->num_rx_queues; i++)
-		spin_unlock(&priv->rx_queue[i]->rxlock);
-}
-
-void unlock_tx_qs(struct gfar_private *priv)
-{
-	int i = 0x0;
-
-	for (i = 0; i < priv->num_tx_queues; i++)
-		spin_unlock(&priv->tx_queue[i]->txlock);
-}
-
-static bool gfar_is_vlan_on(struct gfar_private *priv)
-{
-	return (priv->ndev->features & NETIF_F_HW_VLAN_RX) ||
-	       (priv->ndev->features & NETIF_F_HW_VLAN_TX);
-}
-
-/* Returns 1 if incoming frames use an FCB */
-static inline int gfar_uses_fcb(struct gfar_private *priv)
-{
-	return gfar_is_vlan_on(priv) ||
-		(priv->ndev->features & NETIF_F_RXCSUM) ||
-		(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER);
-}
-
-static void free_tx_pointers(struct gfar_private *priv)
-{
-	int i = 0;
-
-	for (i = 0; i < priv->num_tx_queues; i++)
-		kfree(priv->tx_queue[i]);
-}
-
-static void free_rx_pointers(struct gfar_private *priv)
-{
-	int i = 0;
-
-	for (i = 0; i < priv->num_rx_queues; i++)
-		kfree(priv->rx_queue[i]);
-}
-
-static void unmap_group_regs(struct gfar_private *priv)
-{
-	int i = 0;
-
-	for (i = 0; i < MAXGROUPS; i++)
-		if (priv->gfargrp[i].regs)
-			iounmap(priv->gfargrp[i].regs);
-}
-
-static void disable_napi(struct gfar_private *priv)
-{
-	int i = 0;
-
-	for (i = 0; i < priv->num_grps; i++)
-		napi_disable(&priv->gfargrp[i].napi);
-}
-
-static void enable_napi(struct gfar_private *priv)
-{
-	int i = 0;
-
-	for (i = 0; i < priv->num_grps; i++)
-		napi_enable(&priv->gfargrp[i].napi);
-}
-
-static int gfar_parse_group(struct device_node *np,
-		struct gfar_private *priv, const char *model)
-{
-	u32 *queue_mask;
-
-	priv->gfargrp[priv->num_grps].regs = of_iomap(np, 0);
-	if (!priv->gfargrp[priv->num_grps].regs)
-		return -ENOMEM;
-
-	priv->gfargrp[priv->num_grps].interruptTransmit =
-			irq_of_parse_and_map(np, 0);
-
-	/* If we aren't the FEC we have multiple interrupts */
-	if (model && strcasecmp(model, "FEC")) {
-		priv->gfargrp[priv->num_grps].interruptReceive =
-			irq_of_parse_and_map(np, 1);
-		priv->gfargrp[priv->num_grps].interruptError =
-			irq_of_parse_and_map(np,2);
-		if (priv->gfargrp[priv->num_grps].interruptTransmit == NO_IRQ ||
-		    priv->gfargrp[priv->num_grps].interruptReceive  == NO_IRQ ||
-		    priv->gfargrp[priv->num_grps].interruptError    == NO_IRQ)
-			return -EINVAL;
-	}
-
-	priv->gfargrp[priv->num_grps].grp_id = priv->num_grps;
-	priv->gfargrp[priv->num_grps].priv = priv;
-	spin_lock_init(&priv->gfargrp[priv->num_grps].grplock);
-	if(priv->mode == MQ_MG_MODE) {
-		queue_mask = (u32 *)of_get_property(np,
-					"fsl,rx-bit-map", NULL);
-		priv->gfargrp[priv->num_grps].rx_bit_map =
-			queue_mask ?  *queue_mask :(DEFAULT_MAPPING >> priv->num_grps);
-		queue_mask = (u32 *)of_get_property(np,
-					"fsl,tx-bit-map", NULL);
-		priv->gfargrp[priv->num_grps].tx_bit_map =
-			queue_mask ? *queue_mask : (DEFAULT_MAPPING >> priv->num_grps);
-	} else {
-		priv->gfargrp[priv->num_grps].rx_bit_map = 0xFF;
-		priv->gfargrp[priv->num_grps].tx_bit_map = 0xFF;
-	}
-	priv->num_grps++;
-
-	return 0;
-}
-
-static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev)
-{
-	const char *model;
-	const char *ctype;
-	const void *mac_addr;
-	int err = 0, i;
-	struct net_device *dev = NULL;
-	struct gfar_private *priv = NULL;
-	struct device_node *np = ofdev->dev.of_node;
-	struct device_node *child = NULL;
-	const u32 *stash;
-	const u32 *stash_len;
-	const u32 *stash_idx;
-	unsigned int num_tx_qs, num_rx_qs;
-	u32 *tx_queues, *rx_queues;
-
-	if (!np || !of_device_is_available(np))
-		return -ENODEV;
-
-	/* parse the num of tx and rx queues */
-	tx_queues = (u32 *)of_get_property(np, "fsl,num_tx_queues", NULL);
-	num_tx_qs = tx_queues ? *tx_queues : 1;
-
-	if (num_tx_qs > MAX_TX_QS) {
-		pr_err("num_tx_qs(=%d) greater than MAX_TX_QS(=%d)\n",
-		       num_tx_qs, MAX_TX_QS);
-		pr_err("Cannot do alloc_etherdev, aborting\n");
-		return -EINVAL;
-	}
-
-	rx_queues = (u32 *)of_get_property(np, "fsl,num_rx_queues", NULL);
-	num_rx_qs = rx_queues ? *rx_queues : 1;
-
-	if (num_rx_qs > MAX_RX_QS) {
-		pr_err("num_rx_qs(=%d) greater than MAX_RX_QS(=%d)\n",
-		       num_rx_qs, MAX_RX_QS);
-		pr_err("Cannot do alloc_etherdev, aborting\n");
-		return -EINVAL;
-	}
-
-	*pdev = alloc_etherdev_mq(sizeof(*priv), num_tx_qs);
-	dev = *pdev;
-	if (NULL == dev)
-		return -ENOMEM;
-
-	priv = netdev_priv(dev);
-	priv->node = ofdev->dev.of_node;
-	priv->ndev = dev;
-
-	priv->num_tx_queues = num_tx_qs;
-	netif_set_real_num_rx_queues(dev, num_rx_qs);
-	priv->num_rx_queues = num_rx_qs;
-	priv->num_grps = 0x0;
-
-	/* Init Rx queue filer rule set linked list*/
-	INIT_LIST_HEAD(&priv->rx_list.list);
-	priv->rx_list.count = 0;
-	mutex_init(&priv->rx_queue_access);
-
-	model = of_get_property(np, "model", NULL);
-
-	for (i = 0; i < MAXGROUPS; i++)
-		priv->gfargrp[i].regs = NULL;
-
-	/* Parse and initialize group specific information */
-	if (of_device_is_compatible(np, "fsl,etsec2")) {
-		priv->mode = MQ_MG_MODE;
-		for_each_child_of_node(np, child) {
-			err = gfar_parse_group(child, priv, model);
-			if (err)
-				goto err_grp_init;
-		}
-	} else {
-		priv->mode = SQ_SG_MODE;
-		err = gfar_parse_group(np, priv, model);
-		if(err)
-			goto err_grp_init;
-	}
-
-	for (i = 0; i < priv->num_tx_queues; i++)
-	       priv->tx_queue[i] = NULL;
-	for (i = 0; i < priv->num_rx_queues; i++)
-		priv->rx_queue[i] = NULL;
-
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		priv->tx_queue[i] = kzalloc(sizeof(struct gfar_priv_tx_q),
-					    GFP_KERNEL);
-		if (!priv->tx_queue[i]) {
-			err = -ENOMEM;
-			goto tx_alloc_failed;
-		}
-		priv->tx_queue[i]->tx_skbuff = NULL;
-		priv->tx_queue[i]->qindex = i;
-		priv->tx_queue[i]->dev = dev;
-		spin_lock_init(&(priv->tx_queue[i]->txlock));
-	}
-
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		priv->rx_queue[i] = kzalloc(sizeof(struct gfar_priv_rx_q),
-					    GFP_KERNEL);
-		if (!priv->rx_queue[i]) {
-			err = -ENOMEM;
-			goto rx_alloc_failed;
-		}
-		priv->rx_queue[i]->rx_skbuff = NULL;
-		priv->rx_queue[i]->qindex = i;
-		priv->rx_queue[i]->dev = dev;
-		spin_lock_init(&(priv->rx_queue[i]->rxlock));
-	}
-
-
-	stash = of_get_property(np, "bd-stash", NULL);
-
-	if (stash) {
-		priv->device_flags |= FSL_GIANFAR_DEV_HAS_BD_STASHING;
-		priv->bd_stash_en = 1;
-	}
-
-	stash_len = of_get_property(np, "rx-stash-len", NULL);
-
-	if (stash_len)
-		priv->rx_stash_size = *stash_len;
-
-	stash_idx = of_get_property(np, "rx-stash-idx", NULL);
-
-	if (stash_idx)
-		priv->rx_stash_index = *stash_idx;
-
-	if (stash_len || stash_idx)
-		priv->device_flags |= FSL_GIANFAR_DEV_HAS_BUF_STASHING;
-
-	mac_addr = of_get_mac_address(np);
-	if (mac_addr)
-		memcpy(dev->dev_addr, mac_addr, MAC_ADDR_LEN);
-
-	if (model && !strcasecmp(model, "TSEC"))
-		priv->device_flags =
-			FSL_GIANFAR_DEV_HAS_GIGABIT |
-			FSL_GIANFAR_DEV_HAS_COALESCE |
-			FSL_GIANFAR_DEV_HAS_RMON |
-			FSL_GIANFAR_DEV_HAS_MULTI_INTR;
-	if (model && !strcasecmp(model, "eTSEC"))
-		priv->device_flags =
-			FSL_GIANFAR_DEV_HAS_GIGABIT |
-			FSL_GIANFAR_DEV_HAS_COALESCE |
-			FSL_GIANFAR_DEV_HAS_RMON |
-			FSL_GIANFAR_DEV_HAS_MULTI_INTR |
-			FSL_GIANFAR_DEV_HAS_PADDING |
-			FSL_GIANFAR_DEV_HAS_CSUM |
-			FSL_GIANFAR_DEV_HAS_VLAN |
-			FSL_GIANFAR_DEV_HAS_MAGIC_PACKET |
-			FSL_GIANFAR_DEV_HAS_EXTENDED_HASH |
-			FSL_GIANFAR_DEV_HAS_TIMER;
-
-	ctype = of_get_property(np, "phy-connection-type", NULL);
-
-	/* We only care about rgmii-id.  The rest are autodetected */
-	if (ctype && !strcmp(ctype, "rgmii-id"))
-		priv->interface = PHY_INTERFACE_MODE_RGMII_ID;
-	else
-		priv->interface = PHY_INTERFACE_MODE_MII;
-
-	if (of_get_property(np, "fsl,magic-packet", NULL))
-		priv->device_flags |= FSL_GIANFAR_DEV_HAS_MAGIC_PACKET;
-
-	priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
-
-	/* Find the TBI PHY.  If it's not there, we don't support SGMII */
-	priv->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
-
-	return 0;
-
-rx_alloc_failed:
-	free_rx_pointers(priv);
-tx_alloc_failed:
-	free_tx_pointers(priv);
-err_grp_init:
-	unmap_group_regs(priv);
-	free_netdev(dev);
-	return err;
-}
-
-static int gfar_hwtstamp_ioctl(struct net_device *netdev,
-			struct ifreq *ifr, int cmd)
-{
-	struct hwtstamp_config config;
-	struct gfar_private *priv = netdev_priv(netdev);
-
-	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
-		return -EFAULT;
-
-	/* reserved for future extensions */
-	if (config.flags)
-		return -EINVAL;
-
-	switch (config.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		priv->hwts_tx_en = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER))
-			return -ERANGE;
-		priv->hwts_tx_en = 1;
-		break;
-	default:
-		return -ERANGE;
-	}
-
-	switch (config.rx_filter) {
-	case HWTSTAMP_FILTER_NONE:
-		if (priv->hwts_rx_en) {
-			stop_gfar(netdev);
-			priv->hwts_rx_en = 0;
-			startup_gfar(netdev);
-		}
-		break;
-	default:
-		if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER))
-			return -ERANGE;
-		if (!priv->hwts_rx_en) {
-			stop_gfar(netdev);
-			priv->hwts_rx_en = 1;
-			startup_gfar(netdev);
-		}
-		config.rx_filter = HWTSTAMP_FILTER_ALL;
-		break;
-	}
-
-	return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
-		-EFAULT : 0;
-}
-
-/* Ioctl MII Interface */
-static int gfar_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-
-	if (!netif_running(dev))
-		return -EINVAL;
-
-	if (cmd == SIOCSHWTSTAMP)
-		return gfar_hwtstamp_ioctl(dev, rq, cmd);
-
-	if (!priv->phydev)
-		return -ENODEV;
-
-	return phy_mii_ioctl(priv->phydev, rq, cmd);
-}
-
-static unsigned int reverse_bitmap(unsigned int bit_map, unsigned int max_qs)
-{
-	unsigned int new_bit_map = 0x0;
-	int mask = 0x1 << (max_qs - 1), i;
-	for (i = 0; i < max_qs; i++) {
-		if (bit_map & mask)
-			new_bit_map = new_bit_map + (1 << i);
-		mask = mask >> 0x1;
-	}
-	return new_bit_map;
-}
-
-static u32 cluster_entry_per_class(struct gfar_private *priv, u32 rqfar,
-				   u32 class)
-{
-	u32 rqfpr = FPR_FILER_MASK;
-	u32 rqfcr = 0x0;
-
-	rqfar--;
-	rqfcr = RQFCR_CLE | RQFCR_PID_MASK | RQFCR_CMP_EXACT;
-	priv->ftp_rqfpr[rqfar] = rqfpr;
-	priv->ftp_rqfcr[rqfar] = rqfcr;
-	gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
-
-	rqfar--;
-	rqfcr = RQFCR_CMP_NOMATCH;
-	priv->ftp_rqfpr[rqfar] = rqfpr;
-	priv->ftp_rqfcr[rqfar] = rqfcr;
-	gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
-
-	rqfar--;
-	rqfcr = RQFCR_CMP_EXACT | RQFCR_PID_PARSE | RQFCR_CLE | RQFCR_AND;
-	rqfpr = class;
-	priv->ftp_rqfcr[rqfar] = rqfcr;
-	priv->ftp_rqfpr[rqfar] = rqfpr;
-	gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
-
-	rqfar--;
-	rqfcr = RQFCR_CMP_EXACT | RQFCR_PID_MASK | RQFCR_AND;
-	rqfpr = class;
-	priv->ftp_rqfcr[rqfar] = rqfcr;
-	priv->ftp_rqfpr[rqfar] = rqfpr;
-	gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
-
-	return rqfar;
-}
-
-static void gfar_init_filer_table(struct gfar_private *priv)
-{
-	int i = 0x0;
-	u32 rqfar = MAX_FILER_IDX;
-	u32 rqfcr = 0x0;
-	u32 rqfpr = FPR_FILER_MASK;
-
-	/* Default rule */
-	rqfcr = RQFCR_CMP_MATCH;
-	priv->ftp_rqfcr[rqfar] = rqfcr;
-	priv->ftp_rqfpr[rqfar] = rqfpr;
-	gfar_write_filer(priv, rqfar, rqfcr, rqfpr);
-
-	rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6);
-	rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6 | RQFPR_UDP);
-	rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV6 | RQFPR_TCP);
-	rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4);
-	rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4 | RQFPR_UDP);
-	rqfar = cluster_entry_per_class(priv, rqfar, RQFPR_IPV4 | RQFPR_TCP);
-
-	/* cur_filer_idx indicated the first non-masked rule */
-	priv->cur_filer_idx = rqfar;
-
-	/* Rest are masked rules */
-	rqfcr = RQFCR_CMP_NOMATCH;
-	for (i = 0; i < rqfar; i++) {
-		priv->ftp_rqfcr[i] = rqfcr;
-		priv->ftp_rqfpr[i] = rqfpr;
-		gfar_write_filer(priv, i, rqfcr, rqfpr);
-	}
-}
-
-static void gfar_detect_errata(struct gfar_private *priv)
-{
-	struct device *dev = &priv->ofdev->dev;
-	unsigned int pvr = mfspr(SPRN_PVR);
-	unsigned int svr = mfspr(SPRN_SVR);
-	unsigned int mod = (svr >> 16) & 0xfff6; /* w/o E suffix */
-	unsigned int rev = svr & 0xffff;
-
-	/* MPC8313 Rev 2.0 and higher; All MPC837x */
-	if ((pvr == 0x80850010 && mod == 0x80b0 && rev >= 0x0020) ||
-			(pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
-		priv->errata |= GFAR_ERRATA_74;
-
-	/* MPC8313 and MPC837x all rev */
-	if ((pvr == 0x80850010 && mod == 0x80b0) ||
-			(pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
-		priv->errata |= GFAR_ERRATA_76;
-
-	/* MPC8313 and MPC837x all rev */
-	if ((pvr == 0x80850010 && mod == 0x80b0) ||
-			(pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
-		priv->errata |= GFAR_ERRATA_A002;
-
-	/* MPC8313 Rev < 2.0, MPC8548 rev 2.0 */
-	if ((pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) ||
-			(pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020))
-		priv->errata |= GFAR_ERRATA_12;
-
-	if (priv->errata)
-		dev_info(dev, "enabled errata workarounds, flags: 0x%x\n",
-			 priv->errata);
-}
-
-/* Set up the ethernet device structure, private data,
- * and anything else we need before we start */
-static int gfar_probe(struct platform_device *ofdev)
-{
-	u32 tempval;
-	struct net_device *dev = NULL;
-	struct gfar_private *priv = NULL;
-	struct gfar __iomem *regs = NULL;
-	int err = 0, i, grp_idx = 0;
-	int len_devname;
-	u32 rstat = 0, tstat = 0, rqueue = 0, tqueue = 0;
-	u32 isrg = 0;
-	u32 __iomem *baddr;
-
-	err = gfar_of_init(ofdev, &dev);
-
-	if (err)
-		return err;
-
-	priv = netdev_priv(dev);
-	priv->ndev = dev;
-	priv->ofdev = ofdev;
-	priv->node = ofdev->dev.of_node;
-	SET_NETDEV_DEV(dev, &ofdev->dev);
-
-	spin_lock_init(&priv->bflock);
-	INIT_WORK(&priv->reset_task, gfar_reset_task);
-
-	dev_set_drvdata(&ofdev->dev, priv);
-	regs = priv->gfargrp[0].regs;
-
-	gfar_detect_errata(priv);
-
-	/* Stop the DMA engine now, in case it was running before */
-	/* (The firmware could have used it, and left it running). */
-	gfar_halt(dev);
-
-	/* Reset MAC layer */
-	gfar_write(&regs->maccfg1, MACCFG1_SOFT_RESET);
-
-	/* We need to delay at least 3 TX clocks */
-	udelay(2);
-
-	tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
-	gfar_write(&regs->maccfg1, tempval);
-
-	/* Initialize MACCFG2. */
-	tempval = MACCFG2_INIT_SETTINGS;
-	if (gfar_has_errata(priv, GFAR_ERRATA_74))
-		tempval |= MACCFG2_HUGEFRAME | MACCFG2_LENGTHCHECK;
-	gfar_write(&regs->maccfg2, tempval);
-
-	/* Initialize ECNTRL */
-	gfar_write(&regs->ecntrl, ECNTRL_INIT_SETTINGS);
-
-	/* Set the dev->base_addr to the gfar reg region */
-	dev->base_addr = (unsigned long) regs;
-
-	SET_NETDEV_DEV(dev, &ofdev->dev);
-
-	/* Fill in the dev structure */
-	dev->watchdog_timeo = TX_TIMEOUT;
-	dev->mtu = 1500;
-	dev->netdev_ops = &gfar_netdev_ops;
-	dev->ethtool_ops = &gfar_ethtool_ops;
-
-	/* Register for napi ...We are registering NAPI for each grp */
-	for (i = 0; i < priv->num_grps; i++)
-		netif_napi_add(dev, &priv->gfargrp[i].napi, gfar_poll, GFAR_DEV_WEIGHT);
-
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM) {
-		dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
-			NETIF_F_RXCSUM;
-		dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG |
-			NETIF_F_RXCSUM | NETIF_F_HIGHDMA;
-	}
-
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_VLAN) {
-		dev->hw_features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-		dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
-	}
-
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_EXTENDED_HASH) {
-		priv->extended_hash = 1;
-		priv->hash_width = 9;
-
-		priv->hash_regs[0] = &regs->igaddr0;
-		priv->hash_regs[1] = &regs->igaddr1;
-		priv->hash_regs[2] = &regs->igaddr2;
-		priv->hash_regs[3] = &regs->igaddr3;
-		priv->hash_regs[4] = &regs->igaddr4;
-		priv->hash_regs[5] = &regs->igaddr5;
-		priv->hash_regs[6] = &regs->igaddr6;
-		priv->hash_regs[7] = &regs->igaddr7;
-		priv->hash_regs[8] = &regs->gaddr0;
-		priv->hash_regs[9] = &regs->gaddr1;
-		priv->hash_regs[10] = &regs->gaddr2;
-		priv->hash_regs[11] = &regs->gaddr3;
-		priv->hash_regs[12] = &regs->gaddr4;
-		priv->hash_regs[13] = &regs->gaddr5;
-		priv->hash_regs[14] = &regs->gaddr6;
-		priv->hash_regs[15] = &regs->gaddr7;
-
-	} else {
-		priv->extended_hash = 0;
-		priv->hash_width = 8;
-
-		priv->hash_regs[0] = &regs->gaddr0;
-		priv->hash_regs[1] = &regs->gaddr1;
-		priv->hash_regs[2] = &regs->gaddr2;
-		priv->hash_regs[3] = &regs->gaddr3;
-		priv->hash_regs[4] = &regs->gaddr4;
-		priv->hash_regs[5] = &regs->gaddr5;
-		priv->hash_regs[6] = &regs->gaddr6;
-		priv->hash_regs[7] = &regs->gaddr7;
-	}
-
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_PADDING)
-		priv->padding = DEFAULT_PADDING;
-	else
-		priv->padding = 0;
-
-	if (dev->features & NETIF_F_IP_CSUM ||
-			priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)
-		dev->hard_header_len += GMAC_FCB_LEN;
-
-	/* Program the isrg regs only if number of grps > 1 */
-	if (priv->num_grps > 1) {
-		baddr = &regs->isrg0;
-		for (i = 0; i < priv->num_grps; i++) {
-			isrg |= (priv->gfargrp[i].rx_bit_map << ISRG_SHIFT_RX);
-			isrg |= (priv->gfargrp[i].tx_bit_map << ISRG_SHIFT_TX);
-			gfar_write(baddr, isrg);
-			baddr++;
-			isrg = 0x0;
-		}
-	}
-
-	/* Need to reverse the bit maps as  bit_map's MSB is q0
-	 * but, for_each_set_bit parses from right to left, which
-	 * basically reverses the queue numbers */
-	for (i = 0; i< priv->num_grps; i++) {
-		priv->gfargrp[i].tx_bit_map = reverse_bitmap(
-				priv->gfargrp[i].tx_bit_map, MAX_TX_QS);
-		priv->gfargrp[i].rx_bit_map = reverse_bitmap(
-				priv->gfargrp[i].rx_bit_map, MAX_RX_QS);
-	}
-
-	/* Calculate RSTAT, TSTAT, RQUEUE and TQUEUE values,
-	 * also assign queues to groups */
-	for (grp_idx = 0; grp_idx < priv->num_grps; grp_idx++) {
-		priv->gfargrp[grp_idx].num_rx_queues = 0x0;
-		for_each_set_bit(i, &priv->gfargrp[grp_idx].rx_bit_map,
-				priv->num_rx_queues) {
-			priv->gfargrp[grp_idx].num_rx_queues++;
-			priv->rx_queue[i]->grp = &priv->gfargrp[grp_idx];
-			rstat = rstat | (RSTAT_CLEAR_RHALT >> i);
-			rqueue = rqueue | ((RQUEUE_EN0 | RQUEUE_EX0) >> i);
-		}
-		priv->gfargrp[grp_idx].num_tx_queues = 0x0;
-		for_each_set_bit(i, &priv->gfargrp[grp_idx].tx_bit_map,
-				priv->num_tx_queues) {
-			priv->gfargrp[grp_idx].num_tx_queues++;
-			priv->tx_queue[i]->grp = &priv->gfargrp[grp_idx];
-			tstat = tstat | (TSTAT_CLEAR_THALT >> i);
-			tqueue = tqueue | (TQUEUE_EN0 >> i);
-		}
-		priv->gfargrp[grp_idx].rstat = rstat;
-		priv->gfargrp[grp_idx].tstat = tstat;
-		rstat = tstat =0;
-	}
-
-	gfar_write(&regs->rqueue, rqueue);
-	gfar_write(&regs->tqueue, tqueue);
-
-	priv->rx_buffer_size = DEFAULT_RX_BUFFER_SIZE;
-
-	/* Initializing some of the rx/tx queue level parameters */
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		priv->tx_queue[i]->tx_ring_size = DEFAULT_TX_RING_SIZE;
-		priv->tx_queue[i]->num_txbdfree = DEFAULT_TX_RING_SIZE;
-		priv->tx_queue[i]->txcoalescing = DEFAULT_TX_COALESCE;
-		priv->tx_queue[i]->txic = DEFAULT_TXIC;
-	}
-
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		priv->rx_queue[i]->rx_ring_size = DEFAULT_RX_RING_SIZE;
-		priv->rx_queue[i]->rxcoalescing = DEFAULT_RX_COALESCE;
-		priv->rx_queue[i]->rxic = DEFAULT_RXIC;
-	}
-
-	/* always enable rx filer*/
-	priv->rx_filer_enable = 1;
-	/* Enable most messages by default */
-	priv->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1;
-
-	/* Carrier starts down, phylib will bring it up */
-	netif_carrier_off(dev);
-
-	err = register_netdev(dev);
-
-	if (err) {
-		pr_err("%s: Cannot register net device, aborting\n", dev->name);
-		goto register_fail;
-	}
-
-	device_init_wakeup(&dev->dev,
-		priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
-
-	/* fill out IRQ number and name fields */
-	len_devname = strlen(dev->name);
-	for (i = 0; i < priv->num_grps; i++) {
-		strncpy(&priv->gfargrp[i].int_name_tx[0], dev->name,
-				len_devname);
-		if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
-			strncpy(&priv->gfargrp[i].int_name_tx[len_devname],
-				"_g", sizeof("_g"));
-			priv->gfargrp[i].int_name_tx[
-				strlen(priv->gfargrp[i].int_name_tx)] = i+48;
-			strncpy(&priv->gfargrp[i].int_name_tx[strlen(
-				priv->gfargrp[i].int_name_tx)],
-				"_tx", sizeof("_tx") + 1);
-
-			strncpy(&priv->gfargrp[i].int_name_rx[0], dev->name,
-					len_devname);
-			strncpy(&priv->gfargrp[i].int_name_rx[len_devname],
-					"_g", sizeof("_g"));
-			priv->gfargrp[i].int_name_rx[
-				strlen(priv->gfargrp[i].int_name_rx)] = i+48;
-			strncpy(&priv->gfargrp[i].int_name_rx[strlen(
-				priv->gfargrp[i].int_name_rx)],
-				"_rx", sizeof("_rx") + 1);
-
-			strncpy(&priv->gfargrp[i].int_name_er[0], dev->name,
-					len_devname);
-			strncpy(&priv->gfargrp[i].int_name_er[len_devname],
-				"_g", sizeof("_g"));
-			priv->gfargrp[i].int_name_er[strlen(
-					priv->gfargrp[i].int_name_er)] = i+48;
-			strncpy(&priv->gfargrp[i].int_name_er[strlen(\
-				priv->gfargrp[i].int_name_er)],
-				"_er", sizeof("_er") + 1);
-		} else
-			priv->gfargrp[i].int_name_tx[len_devname] = '\0';
-	}
-
-	/* Initialize the filer table */
-	gfar_init_filer_table(priv);
-
-	/* Create all the sysfs files */
-	gfar_init_sysfs(dev);
-
-	/* Print out the device info */
-	netdev_info(dev, "mac: %pM\n", dev->dev_addr);
-
-	/* Even more device info helps when determining which kernel */
-	/* provided which set of benchmarks. */
-	netdev_info(dev, "Running with NAPI enabled\n");
-	for (i = 0; i < priv->num_rx_queues; i++)
-		netdev_info(dev, "RX BD ring size for Q[%d]: %d\n",
-			    i, priv->rx_queue[i]->rx_ring_size);
-	for(i = 0; i < priv->num_tx_queues; i++)
-		netdev_info(dev, "TX BD ring size for Q[%d]: %d\n",
-			    i, priv->tx_queue[i]->tx_ring_size);
-
-	return 0;
-
-register_fail:
-	unmap_group_regs(priv);
-	free_tx_pointers(priv);
-	free_rx_pointers(priv);
-	if (priv->phy_node)
-		of_node_put(priv->phy_node);
-	if (priv->tbi_node)
-		of_node_put(priv->tbi_node);
-	free_netdev(dev);
-	return err;
-}
-
-static int gfar_remove(struct platform_device *ofdev)
-{
-	struct gfar_private *priv = dev_get_drvdata(&ofdev->dev);
-
-	if (priv->phy_node)
-		of_node_put(priv->phy_node);
-	if (priv->tbi_node)
-		of_node_put(priv->tbi_node);
-
-	dev_set_drvdata(&ofdev->dev, NULL);
-
-	unregister_netdev(priv->ndev);
-	unmap_group_regs(priv);
-	free_netdev(priv->ndev);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-
-static int gfar_suspend(struct device *dev)
-{
-	struct gfar_private *priv = dev_get_drvdata(dev);
-	struct net_device *ndev = priv->ndev;
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	unsigned long flags;
-	u32 tempval;
-
-	int magic_packet = priv->wol_en &&
-		(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
-
-	netif_device_detach(ndev);
-
-	if (netif_running(ndev)) {
-
-		local_irq_save(flags);
-		lock_tx_qs(priv);
-		lock_rx_qs(priv);
-
-		gfar_halt_nodisable(ndev);
-
-		/* Disable Tx, and Rx if wake-on-LAN is disabled. */
-		tempval = gfar_read(&regs->maccfg1);
-
-		tempval &= ~MACCFG1_TX_EN;
-
-		if (!magic_packet)
-			tempval &= ~MACCFG1_RX_EN;
-
-		gfar_write(&regs->maccfg1, tempval);
-
-		unlock_rx_qs(priv);
-		unlock_tx_qs(priv);
-		local_irq_restore(flags);
-
-		disable_napi(priv);
-
-		if (magic_packet) {
-			/* Enable interrupt on Magic Packet */
-			gfar_write(&regs->imask, IMASK_MAG);
-
-			/* Enable Magic Packet mode */
-			tempval = gfar_read(&regs->maccfg2);
-			tempval |= MACCFG2_MPEN;
-			gfar_write(&regs->maccfg2, tempval);
-		} else {
-			phy_stop(priv->phydev);
-		}
-	}
-
-	return 0;
-}
-
-static int gfar_resume(struct device *dev)
-{
-	struct gfar_private *priv = dev_get_drvdata(dev);
-	struct net_device *ndev = priv->ndev;
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	unsigned long flags;
-	u32 tempval;
-	int magic_packet = priv->wol_en &&
-		(priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
-
-	if (!netif_running(ndev)) {
-		netif_device_attach(ndev);
-		return 0;
-	}
-
-	if (!magic_packet && priv->phydev)
-		phy_start(priv->phydev);
-
-	/* Disable Magic Packet mode, in case something
-	 * else woke us up.
-	 */
-	local_irq_save(flags);
-	lock_tx_qs(priv);
-	lock_rx_qs(priv);
-
-	tempval = gfar_read(&regs->maccfg2);
-	tempval &= ~MACCFG2_MPEN;
-	gfar_write(&regs->maccfg2, tempval);
-
-	gfar_start(ndev);
-
-	unlock_rx_qs(priv);
-	unlock_tx_qs(priv);
-	local_irq_restore(flags);
-
-	netif_device_attach(ndev);
-
-	enable_napi(priv);
-
-	return 0;
-}
-
-static int gfar_restore(struct device *dev)
-{
-	struct gfar_private *priv = dev_get_drvdata(dev);
-	struct net_device *ndev = priv->ndev;
-
-	if (!netif_running(ndev))
-		return 0;
-
-	gfar_init_bds(ndev);
-	init_registers(ndev);
-	gfar_set_mac_address(ndev);
-	gfar_init_mac(ndev);
-	gfar_start(ndev);
-
-	priv->oldlink = 0;
-	priv->oldspeed = 0;
-	priv->oldduplex = -1;
-
-	if (priv->phydev)
-		phy_start(priv->phydev);
-
-	netif_device_attach(ndev);
-	enable_napi(priv);
-
-	return 0;
-}
-
-static struct dev_pm_ops gfar_pm_ops = {
-	.suspend = gfar_suspend,
-	.resume = gfar_resume,
-	.freeze = gfar_suspend,
-	.thaw = gfar_resume,
-	.restore = gfar_restore,
-};
-
-#define GFAR_PM_OPS (&gfar_pm_ops)
-
-#else
-
-#define GFAR_PM_OPS NULL
-
-#endif
-
-/* Reads the controller's registers to determine what interface
- * connects it to the PHY.
- */
-static phy_interface_t gfar_get_interface(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 ecntrl;
-
-	ecntrl = gfar_read(&regs->ecntrl);
-
-	if (ecntrl & ECNTRL_SGMII_MODE)
-		return PHY_INTERFACE_MODE_SGMII;
-
-	if (ecntrl & ECNTRL_TBI_MODE) {
-		if (ecntrl & ECNTRL_REDUCED_MODE)
-			return PHY_INTERFACE_MODE_RTBI;
-		else
-			return PHY_INTERFACE_MODE_TBI;
-	}
-
-	if (ecntrl & ECNTRL_REDUCED_MODE) {
-		if (ecntrl & ECNTRL_REDUCED_MII_MODE)
-			return PHY_INTERFACE_MODE_RMII;
-		else {
-			phy_interface_t interface = priv->interface;
-
-			/*
-			 * This isn't autodetected right now, so it must
-			 * be set by the device tree or platform code.
-			 */
-			if (interface == PHY_INTERFACE_MODE_RGMII_ID)
-				return PHY_INTERFACE_MODE_RGMII_ID;
-
-			return PHY_INTERFACE_MODE_RGMII;
-		}
-	}
-
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT)
-		return PHY_INTERFACE_MODE_GMII;
-
-	return PHY_INTERFACE_MODE_MII;
-}
-
-
-/* Initializes driver's PHY state, and attaches to the PHY.
- * Returns 0 on success.
- */
-static int init_phy(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	uint gigabit_support =
-		priv->device_flags & FSL_GIANFAR_DEV_HAS_GIGABIT ?
-		SUPPORTED_1000baseT_Full : 0;
-	phy_interface_t interface;
-
-	priv->oldlink = 0;
-	priv->oldspeed = 0;
-	priv->oldduplex = -1;
-
-	interface = gfar_get_interface(dev);
-
-	priv->phydev = of_phy_connect(dev, priv->phy_node, &adjust_link, 0,
-				      interface);
-	if (!priv->phydev)
-		priv->phydev = of_phy_connect_fixed_link(dev, &adjust_link,
-							 interface);
-	if (!priv->phydev) {
-		dev_err(&dev->dev, "could not attach to PHY\n");
-		return -ENODEV;
-	}
-
-	if (interface == PHY_INTERFACE_MODE_SGMII)
-		gfar_configure_serdes(dev);
-
-	/* Remove any features not supported by the controller */
-	priv->phydev->supported &= (GFAR_SUPPORTED | gigabit_support);
-	priv->phydev->advertising = priv->phydev->supported;
-
-	return 0;
-}
-
-/*
- * Initialize TBI PHY interface for communicating with the
- * SERDES lynx PHY on the chip.  We communicate with this PHY
- * through the MDIO bus on each controller, treating it as a
- * "normal" PHY at the address found in the TBIPA register.  We assume
- * that the TBIPA register is valid.  Either the MDIO bus code will set
- * it to a value that doesn't conflict with other PHYs on the bus, or the
- * value doesn't matter, as there are no other PHYs on the bus.
- */
-static void gfar_configure_serdes(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct phy_device *tbiphy;
-
-	if (!priv->tbi_node) {
-		dev_warn(&dev->dev, "error: SGMII mode requires that the "
-				    "device tree specify a tbi-handle\n");
-		return;
-	}
-
-	tbiphy = of_phy_find_device(priv->tbi_node);
-	if (!tbiphy) {
-		dev_err(&dev->dev, "error: Could not get TBI device\n");
-		return;
-	}
-
-	/*
-	 * If the link is already up, we must already be ok, and don't need to
-	 * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
-	 * everything for us?  Resetting it takes the link down and requires
-	 * several seconds for it to come back.
-	 */
-	if (phy_read(tbiphy, MII_BMSR) & BMSR_LSTATUS)
-		return;
-
-	/* Single clk mode, mii mode off(for serdes communication) */
-	phy_write(tbiphy, MII_TBICON, TBICON_CLK_SELECT);
-
-	phy_write(tbiphy, MII_ADVERTISE,
-			ADVERTISE_1000XFULL | ADVERTISE_1000XPAUSE |
-			ADVERTISE_1000XPSE_ASYM);
-
-	phy_write(tbiphy, MII_BMCR, BMCR_ANENABLE |
-			BMCR_ANRESTART | BMCR_FULLDPLX | BMCR_SPEED1000);
-}
-
-static void init_registers(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = NULL;
-	int i = 0;
-
-	for (i = 0; i < priv->num_grps; i++) {
-		regs = priv->gfargrp[i].regs;
-		/* Clear IEVENT */
-		gfar_write(&regs->ievent, IEVENT_INIT_CLEAR);
-
-		/* Initialize IMASK */
-		gfar_write(&regs->imask, IMASK_INIT_CLEAR);
-	}
-
-	regs = priv->gfargrp[0].regs;
-	/* Init hash registers to zero */
-	gfar_write(&regs->igaddr0, 0);
-	gfar_write(&regs->igaddr1, 0);
-	gfar_write(&regs->igaddr2, 0);
-	gfar_write(&regs->igaddr3, 0);
-	gfar_write(&regs->igaddr4, 0);
-	gfar_write(&regs->igaddr5, 0);
-	gfar_write(&regs->igaddr6, 0);
-	gfar_write(&regs->igaddr7, 0);
-
-	gfar_write(&regs->gaddr0, 0);
-	gfar_write(&regs->gaddr1, 0);
-	gfar_write(&regs->gaddr2, 0);
-	gfar_write(&regs->gaddr3, 0);
-	gfar_write(&regs->gaddr4, 0);
-	gfar_write(&regs->gaddr5, 0);
-	gfar_write(&regs->gaddr6, 0);
-	gfar_write(&regs->gaddr7, 0);
-
-	/* Zero out the rmon mib registers if it has them */
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
-		memset_io(&(regs->rmon), 0, sizeof (struct rmon_mib));
-
-		/* Mask off the CAM interrupts */
-		gfar_write(&regs->rmon.cam1, 0xffffffff);
-		gfar_write(&regs->rmon.cam2, 0xffffffff);
-	}
-
-	/* Initialize the max receive buffer length */
-	gfar_write(&regs->mrblr, priv->rx_buffer_size);
-
-	/* Initialize the Minimum Frame Length Register */
-	gfar_write(&regs->minflr, MINFLR_INIT_SETTINGS);
-}
-
-static int __gfar_is_rx_idle(struct gfar_private *priv)
-{
-	u32 res;
-
-	/*
-	 * Normaly TSEC should not hang on GRS commands, so we should
-	 * actually wait for IEVENT_GRSC flag.
-	 */
-	if (likely(!gfar_has_errata(priv, GFAR_ERRATA_A002)))
-		return 0;
-
-	/*
-	 * Read the eTSEC register at offset 0xD1C. If bits 7-14 are
-	 * the same as bits 23-30, the eTSEC Rx is assumed to be idle
-	 * and the Rx can be safely reset.
-	 */
-	res = gfar_read((void __iomem *)priv->gfargrp[0].regs + 0xd1c);
-	res &= 0x7f807f80;
-	if ((res & 0xffff) == (res >> 16))
-		return 1;
-
-	return 0;
-}
-
-/* Halt the receive and transmit queues */
-static void gfar_halt_nodisable(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = NULL;
-	u32 tempval;
-	int i = 0;
-
-	for (i = 0; i < priv->num_grps; i++) {
-		regs = priv->gfargrp[i].regs;
-		/* Mask all interrupts */
-		gfar_write(&regs->imask, IMASK_INIT_CLEAR);
-
-		/* Clear all interrupts */
-		gfar_write(&regs->ievent, IEVENT_INIT_CLEAR);
-	}
-
-	regs = priv->gfargrp[0].regs;
-	/* Stop the DMA, and wait for it to stop */
-	tempval = gfar_read(&regs->dmactrl);
-	if ((tempval & (DMACTRL_GRS | DMACTRL_GTS))
-	    != (DMACTRL_GRS | DMACTRL_GTS)) {
-		int ret;
-
-		tempval |= (DMACTRL_GRS | DMACTRL_GTS);
-		gfar_write(&regs->dmactrl, tempval);
-
-		do {
-			ret = spin_event_timeout(((gfar_read(&regs->ievent) &
-				 (IEVENT_GRSC | IEVENT_GTSC)) ==
-				 (IEVENT_GRSC | IEVENT_GTSC)), 1000000, 0);
-			if (!ret && !(gfar_read(&regs->ievent) & IEVENT_GRSC))
-				ret = __gfar_is_rx_idle(priv);
-		} while (!ret);
-	}
-}
-
-/* Halt the receive and transmit queues */
-void gfar_halt(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 tempval;
-
-	gfar_halt_nodisable(dev);
-
-	/* Disable Rx and Tx */
-	tempval = gfar_read(&regs->maccfg1);
-	tempval &= ~(MACCFG1_RX_EN | MACCFG1_TX_EN);
-	gfar_write(&regs->maccfg1, tempval);
-}
-
-static void free_grp_irqs(struct gfar_priv_grp *grp)
-{
-	free_irq(grp->interruptError, grp);
-	free_irq(grp->interruptTransmit, grp);
-	free_irq(grp->interruptReceive, grp);
-}
-
-void stop_gfar(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	unsigned long flags;
-	int i;
-
-	phy_stop(priv->phydev);
-
-
-	/* Lock it down */
-	local_irq_save(flags);
-	lock_tx_qs(priv);
-	lock_rx_qs(priv);
-
-	gfar_halt(dev);
-
-	unlock_rx_qs(priv);
-	unlock_tx_qs(priv);
-	local_irq_restore(flags);
-
-	/* Free the IRQs */
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
-		for (i = 0; i < priv->num_grps; i++)
-			free_grp_irqs(&priv->gfargrp[i]);
-	} else {
-		for (i = 0; i < priv->num_grps; i++)
-			free_irq(priv->gfargrp[i].interruptTransmit,
-					&priv->gfargrp[i]);
-	}
-
-	free_skb_resources(priv);
-}
-
-static void free_skb_tx_queue(struct gfar_priv_tx_q *tx_queue)
-{
-	struct txbd8 *txbdp;
-	struct gfar_private *priv = netdev_priv(tx_queue->dev);
-	int i, j;
-
-	txbdp = tx_queue->tx_bd_base;
-
-	for (i = 0; i < tx_queue->tx_ring_size; i++) {
-		if (!tx_queue->tx_skbuff[i])
-			continue;
-
-		dma_unmap_single(&priv->ofdev->dev, txbdp->bufPtr,
-				txbdp->length, DMA_TO_DEVICE);
-		txbdp->lstatus = 0;
-		for (j = 0; j < skb_shinfo(tx_queue->tx_skbuff[i])->nr_frags;
-				j++) {
-			txbdp++;
-			dma_unmap_page(&priv->ofdev->dev, txbdp->bufPtr,
-					txbdp->length, DMA_TO_DEVICE);
-		}
-		txbdp++;
-		dev_kfree_skb_any(tx_queue->tx_skbuff[i]);
-		tx_queue->tx_skbuff[i] = NULL;
-	}
-	kfree(tx_queue->tx_skbuff);
-}
-
-static void free_skb_rx_queue(struct gfar_priv_rx_q *rx_queue)
-{
-	struct rxbd8 *rxbdp;
-	struct gfar_private *priv = netdev_priv(rx_queue->dev);
-	int i;
-
-	rxbdp = rx_queue->rx_bd_base;
-
-	for (i = 0; i < rx_queue->rx_ring_size; i++) {
-		if (rx_queue->rx_skbuff[i]) {
-			dma_unmap_single(&priv->ofdev->dev,
-					rxbdp->bufPtr, priv->rx_buffer_size,
-					DMA_FROM_DEVICE);
-			dev_kfree_skb_any(rx_queue->rx_skbuff[i]);
-			rx_queue->rx_skbuff[i] = NULL;
-		}
-		rxbdp->lstatus = 0;
-		rxbdp->bufPtr = 0;
-		rxbdp++;
-	}
-	kfree(rx_queue->rx_skbuff);
-}
-
-/* If there are any tx skbs or rx skbs still around, free them.
- * Then free tx_skbuff and rx_skbuff */
-static void free_skb_resources(struct gfar_private *priv)
-{
-	struct gfar_priv_tx_q *tx_queue = NULL;
-	struct gfar_priv_rx_q *rx_queue = NULL;
-	int i;
-
-	/* Go through all the buffer descriptors and free their data buffers */
-	for (i = 0; i < priv->num_tx_queues; i++) {
-		tx_queue = priv->tx_queue[i];
-		if(tx_queue->tx_skbuff)
-			free_skb_tx_queue(tx_queue);
-	}
-
-	for (i = 0; i < priv->num_rx_queues; i++) {
-		rx_queue = priv->rx_queue[i];
-		if(rx_queue->rx_skbuff)
-			free_skb_rx_queue(rx_queue);
-	}
-
-	dma_free_coherent(&priv->ofdev->dev,
-			sizeof(struct txbd8) * priv->total_tx_ring_size +
-			sizeof(struct rxbd8) * priv->total_rx_ring_size,
-			priv->tx_queue[0]->tx_bd_base,
-			priv->tx_queue[0]->tx_bd_dma_base);
-	skb_queue_purge(&priv->rx_recycle);
-}
-
-void gfar_start(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 tempval;
-	int i = 0;
-
-	/* Enable Rx and Tx in MACCFG1 */
-	tempval = gfar_read(&regs->maccfg1);
-	tempval |= (MACCFG1_RX_EN | MACCFG1_TX_EN);
-	gfar_write(&regs->maccfg1, tempval);
-
-	/* Initialize DMACTRL to have WWR and WOP */
-	tempval = gfar_read(&regs->dmactrl);
-	tempval |= DMACTRL_INIT_SETTINGS;
-	gfar_write(&regs->dmactrl, tempval);
-
-	/* Make sure we aren't stopped */
-	tempval = gfar_read(&regs->dmactrl);
-	tempval &= ~(DMACTRL_GRS | DMACTRL_GTS);
-	gfar_write(&regs->dmactrl, tempval);
-
-	for (i = 0; i < priv->num_grps; i++) {
-		regs = priv->gfargrp[i].regs;
-		/* Clear THLT/RHLT, so that the DMA starts polling now */
-		gfar_write(&regs->tstat, priv->gfargrp[i].tstat);
-		gfar_write(&regs->rstat, priv->gfargrp[i].rstat);
-		/* Unmask the interrupts we look for */
-		gfar_write(&regs->imask, IMASK_DEFAULT);
-	}
-
-	dev->trans_start = jiffies; /* prevent tx timeout */
-}
-
-void gfar_configure_coalescing(struct gfar_private *priv,
-	unsigned long tx_mask, unsigned long rx_mask)
-{
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 __iomem *baddr;
-	int i = 0;
-
-	/* Backward compatible case ---- even if we enable
-	 * multiple queues, there's only single reg to program
-	 */
-	gfar_write(&regs->txic, 0);
-	if(likely(priv->tx_queue[0]->txcoalescing))
-		gfar_write(&regs->txic, priv->tx_queue[0]->txic);
-
-	gfar_write(&regs->rxic, 0);
-	if(unlikely(priv->rx_queue[0]->rxcoalescing))
-		gfar_write(&regs->rxic, priv->rx_queue[0]->rxic);
-
-	if (priv->mode == MQ_MG_MODE) {
-		baddr = &regs->txic0;
-		for_each_set_bit(i, &tx_mask, priv->num_tx_queues) {
-			if (likely(priv->tx_queue[i]->txcoalescing)) {
-				gfar_write(baddr + i, 0);
-				gfar_write(baddr + i, priv->tx_queue[i]->txic);
-			}
-		}
-
-		baddr = &regs->rxic0;
-		for_each_set_bit(i, &rx_mask, priv->num_rx_queues) {
-			if (likely(priv->rx_queue[i]->rxcoalescing)) {
-				gfar_write(baddr + i, 0);
-				gfar_write(baddr + i, priv->rx_queue[i]->rxic);
-			}
-		}
-	}
-}
-
-static int register_grp_irqs(struct gfar_priv_grp *grp)
-{
-	struct gfar_private *priv = grp->priv;
-	struct net_device *dev = priv->ndev;
-	int err;
-
-	/* If the device has multiple interrupts, register for
-	 * them.  Otherwise, only register for the one */
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
-		/* Install our interrupt handlers for Error,
-		 * Transmit, and Receive */
-		if ((err = request_irq(grp->interruptError, gfar_error, 0,
-				grp->int_name_er,grp)) < 0) {
-			netif_err(priv, intr, dev, "Can't get IRQ %d\n",
-				  grp->interruptError);
-
-			goto err_irq_fail;
-		}
-
-		if ((err = request_irq(grp->interruptTransmit, gfar_transmit,
-				0, grp->int_name_tx, grp)) < 0) {
-			netif_err(priv, intr, dev, "Can't get IRQ %d\n",
-				  grp->interruptTransmit);
-			goto tx_irq_fail;
-		}
-
-		if ((err = request_irq(grp->interruptReceive, gfar_receive, 0,
-				grp->int_name_rx, grp)) < 0) {
-			netif_err(priv, intr, dev, "Can't get IRQ %d\n",
-				  grp->interruptReceive);
-			goto rx_irq_fail;
-		}
-	} else {
-		if ((err = request_irq(grp->interruptTransmit, gfar_interrupt, 0,
-				grp->int_name_tx, grp)) < 0) {
-			netif_err(priv, intr, dev, "Can't get IRQ %d\n",
-				  grp->interruptTransmit);
-			goto err_irq_fail;
-		}
-	}
-
-	return 0;
-
-rx_irq_fail:
-	free_irq(grp->interruptTransmit, grp);
-tx_irq_fail:
-	free_irq(grp->interruptError, grp);
-err_irq_fail:
-	return err;
-
-}
-
-/* Bring the controller up and running */
-int startup_gfar(struct net_device *ndev)
-{
-	struct gfar_private *priv = netdev_priv(ndev);
-	struct gfar __iomem *regs = NULL;
-	int err, i, j;
-
-	for (i = 0; i < priv->num_grps; i++) {
-		regs= priv->gfargrp[i].regs;
-		gfar_write(&regs->imask, IMASK_INIT_CLEAR);
-	}
-
-	regs= priv->gfargrp[0].regs;
-	err = gfar_alloc_skb_resources(ndev);
-	if (err)
-		return err;
-
-	gfar_init_mac(ndev);
-
-	for (i = 0; i < priv->num_grps; i++) {
-		err = register_grp_irqs(&priv->gfargrp[i]);
-		if (err) {
-			for (j = 0; j < i; j++)
-				free_grp_irqs(&priv->gfargrp[j]);
-			goto irq_fail;
-		}
-	}
-
-	/* Start the controller */
-	gfar_start(ndev);
-
-	phy_start(priv->phydev);
-
-	gfar_configure_coalescing(priv, 0xFF, 0xFF);
-
-	return 0;
-
-irq_fail:
-	free_skb_resources(priv);
-	return err;
-}
-
-/* Called when something needs to use the ethernet device */
-/* Returns 0 for success. */
-static int gfar_enet_open(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	int err;
-
-	enable_napi(priv);
-
-	skb_queue_head_init(&priv->rx_recycle);
-
-	/* Initialize a bunch of registers */
-	init_registers(dev);
-
-	gfar_set_mac_address(dev);
-
-	err = init_phy(dev);
-
-	if (err) {
-		disable_napi(priv);
-		return err;
-	}
-
-	err = startup_gfar(dev);
-	if (err) {
-		disable_napi(priv);
-		return err;
-	}
-
-	netif_tx_start_all_queues(dev);
-
-	device_set_wakeup_enable(&dev->dev, priv->wol_en);
-
-	return err;
-}
-
-static inline struct txfcb *gfar_add_fcb(struct sk_buff *skb)
-{
-	struct txfcb *fcb = (struct txfcb *)skb_push(skb, GMAC_FCB_LEN);
-
-	memset(fcb, 0, GMAC_FCB_LEN);
-
-	return fcb;
-}
-
-static inline void gfar_tx_checksum(struct sk_buff *skb, struct txfcb *fcb)
-{
-	u8 flags = 0;
-
-	/* If we're here, it's a IP packet with a TCP or UDP
-	 * payload.  We set it to checksum, using a pseudo-header
-	 * we provide
-	 */
-	flags = TXFCB_DEFAULT;
-
-	/* Tell the controller what the protocol is */
-	/* And provide the already calculated phcs */
-	if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
-		flags |= TXFCB_UDP;
-		fcb->phcs = udp_hdr(skb)->check;
-	} else
-		fcb->phcs = tcp_hdr(skb)->check;
-
-	/* l3os is the distance between the start of the
-	 * frame (skb->data) and the start of the IP hdr.
-	 * l4os is the distance between the start of the
-	 * l3 hdr and the l4 hdr */
-	fcb->l3os = (u16)(skb_network_offset(skb) - GMAC_FCB_LEN);
-	fcb->l4os = skb_network_header_len(skb);
-
-	fcb->flags = flags;
-}
-
-void inline gfar_tx_vlan(struct sk_buff *skb, struct txfcb *fcb)
-{
-	fcb->flags |= TXFCB_VLN;
-	fcb->vlctl = vlan_tx_tag_get(skb);
-}
-
-static inline struct txbd8 *skip_txbd(struct txbd8 *bdp, int stride,
-			       struct txbd8 *base, int ring_size)
-{
-	struct txbd8 *new_bd = bdp + stride;
-
-	return (new_bd >= (base + ring_size)) ? (new_bd - ring_size) : new_bd;
-}
-
-static inline struct txbd8 *next_txbd(struct txbd8 *bdp, struct txbd8 *base,
-		int ring_size)
-{
-	return skip_txbd(bdp, 1, base, ring_size);
-}
-
-/* This is called by the kernel when a frame is ready for transmission. */
-/* It is pointed to by the dev->hard_start_xmit function pointer */
-static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar_priv_tx_q *tx_queue = NULL;
-	struct netdev_queue *txq;
-	struct gfar __iomem *regs = NULL;
-	struct txfcb *fcb = NULL;
-	struct txbd8 *txbdp, *txbdp_start, *base, *txbdp_tstamp = NULL;
-	u32 lstatus;
-	int i, rq = 0, do_tstamp = 0;
-	u32 bufaddr;
-	unsigned long flags;
-	unsigned int nr_frags, nr_txbds, length;
-
-	/*
-	 * TOE=1 frames larger than 2500 bytes may see excess delays
-	 * before start of transmission.
-	 */
-	if (unlikely(gfar_has_errata(priv, GFAR_ERRATA_76) &&
-			skb->ip_summed == CHECKSUM_PARTIAL &&
-			skb->len > 2500)) {
-		int ret;
-
-		ret = skb_checksum_help(skb);
-		if (ret)
-			return ret;
-	}
-
-	rq = skb->queue_mapping;
-	tx_queue = priv->tx_queue[rq];
-	txq = netdev_get_tx_queue(dev, rq);
-	base = tx_queue->tx_bd_base;
-	regs = tx_queue->grp->regs;
-
-	/* check if time stamp should be generated */
-	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP &&
-		     priv->hwts_tx_en))
-		do_tstamp = 1;
-
-	/* make space for additional header when fcb is needed */
-	if (((skb->ip_summed == CHECKSUM_PARTIAL) ||
-			vlan_tx_tag_present(skb) ||
-			unlikely(do_tstamp)) &&
-			(skb_headroom(skb) < GMAC_FCB_LEN)) {
-		struct sk_buff *skb_new;
-
-		skb_new = skb_realloc_headroom(skb, GMAC_FCB_LEN);
-		if (!skb_new) {
-			dev->stats.tx_errors++;
-			kfree_skb(skb);
-			return NETDEV_TX_OK;
-		}
-		kfree_skb(skb);
-		skb = skb_new;
-	}
-
-	/* total number of fragments in the SKB */
-	nr_frags = skb_shinfo(skb)->nr_frags;
-
-	/* calculate the required number of TxBDs for this skb */
-	if (unlikely(do_tstamp))
-		nr_txbds = nr_frags + 2;
-	else
-		nr_txbds = nr_frags + 1;
-
-	/* check if there is space to queue this packet */
-	if (nr_txbds > tx_queue->num_txbdfree) {
-		/* no space, stop the queue */
-		netif_tx_stop_queue(txq);
-		dev->stats.tx_fifo_errors++;
-		return NETDEV_TX_BUSY;
-	}
-
-	/* Update transmit stats */
-	tx_queue->stats.tx_bytes += skb->len;
-	tx_queue->stats.tx_packets++;
-
-	txbdp = txbdp_start = tx_queue->cur_tx;
-	lstatus = txbdp->lstatus;
-
-	/* Time stamp insertion requires one additional TxBD */
-	if (unlikely(do_tstamp))
-		txbdp_tstamp = txbdp = next_txbd(txbdp, base,
-				tx_queue->tx_ring_size);
-
-	if (nr_frags == 0) {
-		if (unlikely(do_tstamp))
-			txbdp_tstamp->lstatus |= BD_LFLAG(TXBD_LAST |
-					TXBD_INTERRUPT);
-		else
-			lstatus |= BD_LFLAG(TXBD_LAST | TXBD_INTERRUPT);
-	} else {
-		/* Place the fragment addresses and lengths into the TxBDs */
-		for (i = 0; i < nr_frags; i++) {
-			/* Point at the next BD, wrapping as needed */
-			txbdp = next_txbd(txbdp, base, tx_queue->tx_ring_size);
-
-			length = skb_shinfo(skb)->frags[i].size;
-
-			lstatus = txbdp->lstatus | length |
-				BD_LFLAG(TXBD_READY);
-
-			/* Handle the last BD specially */
-			if (i == nr_frags - 1)
-				lstatus |= BD_LFLAG(TXBD_LAST | TXBD_INTERRUPT);
-
-			bufaddr = dma_map_page(&priv->ofdev->dev,
-					skb_shinfo(skb)->frags[i].page,
-					skb_shinfo(skb)->frags[i].page_offset,
-					length,
-					DMA_TO_DEVICE);
-
-			/* set the TxBD length and buffer pointer */
-			txbdp->bufPtr = bufaddr;
-			txbdp->lstatus = lstatus;
-		}
-
-		lstatus = txbdp_start->lstatus;
-	}
-
-	/* Set up checksumming */
-	if (CHECKSUM_PARTIAL == skb->ip_summed) {
-		fcb = gfar_add_fcb(skb);
-		/* as specified by errata */
-		if (unlikely(gfar_has_errata(priv, GFAR_ERRATA_12)
-			     && ((unsigned long)fcb % 0x20) > 0x18)) {
-			__skb_pull(skb, GMAC_FCB_LEN);
-			skb_checksum_help(skb);
-		} else {
-			lstatus |= BD_LFLAG(TXBD_TOE);
-			gfar_tx_checksum(skb, fcb);
-		}
-	}
-
-	if (vlan_tx_tag_present(skb)) {
-		if (unlikely(NULL == fcb)) {
-			fcb = gfar_add_fcb(skb);
-			lstatus |= BD_LFLAG(TXBD_TOE);
-		}
-
-		gfar_tx_vlan(skb, fcb);
-	}
-
-	/* Setup tx hardware time stamping if requested */
-	if (unlikely(do_tstamp)) {
-		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
-		if (fcb == NULL)
-			fcb = gfar_add_fcb(skb);
-		fcb->ptp = 1;
-		lstatus |= BD_LFLAG(TXBD_TOE);
-	}
-
-	txbdp_start->bufPtr = dma_map_single(&priv->ofdev->dev, skb->data,
-			skb_headlen(skb), DMA_TO_DEVICE);
-
-	/*
-	 * If time stamping is requested one additional TxBD must be set up. The
-	 * first TxBD points to the FCB and must have a data length of
-	 * GMAC_FCB_LEN. The second TxBD points to the actual frame data with
-	 * the full frame length.
-	 */
-	if (unlikely(do_tstamp)) {
-		txbdp_tstamp->bufPtr = txbdp_start->bufPtr + GMAC_FCB_LEN;
-		txbdp_tstamp->lstatus |= BD_LFLAG(TXBD_READY) |
-				(skb_headlen(skb) - GMAC_FCB_LEN);
-		lstatus |= BD_LFLAG(TXBD_CRC | TXBD_READY) | GMAC_FCB_LEN;
-	} else {
-		lstatus |= BD_LFLAG(TXBD_CRC | TXBD_READY) | skb_headlen(skb);
-	}
-
-	/*
-	 * We can work in parallel with gfar_clean_tx_ring(), except
-	 * when modifying num_txbdfree. Note that we didn't grab the lock
-	 * when we were reading the num_txbdfree and checking for available
-	 * space, that's because outside of this function it can only grow,
-	 * and once we've got needed space, it cannot suddenly disappear.
-	 *
-	 * The lock also protects us from gfar_error(), which can modify
-	 * regs->tstat and thus retrigger the transfers, which is why we
-	 * also must grab the lock before setting ready bit for the first
-	 * to be transmitted BD.
-	 */
-	spin_lock_irqsave(&tx_queue->txlock, flags);
-
-	/*
-	 * The powerpc-specific eieio() is used, as wmb() has too strong
-	 * semantics (it requires synchronization between cacheable and
-	 * uncacheable mappings, which eieio doesn't provide and which we
-	 * don't need), thus requiring a more expensive sync instruction.  At
-	 * some point, the set of architecture-independent barrier functions
-	 * should be expanded to include weaker barriers.
-	 */
-	eieio();
-
-	txbdp_start->lstatus = lstatus;
-
-	eieio(); /* force lstatus write before tx_skbuff */
-
-	tx_queue->tx_skbuff[tx_queue->skb_curtx] = skb;
-
-	/* Update the current skb pointer to the next entry we will use
-	 * (wrapping if necessary) */
-	tx_queue->skb_curtx = (tx_queue->skb_curtx + 1) &
-		TX_RING_MOD_MASK(tx_queue->tx_ring_size);
-
-	tx_queue->cur_tx = next_txbd(txbdp, base, tx_queue->tx_ring_size);
-
-	/* reduce TxBD free count */
-	tx_queue->num_txbdfree -= (nr_txbds);
-
-	/* If the next BD still needs to be cleaned up, then the bds
-	   are full.  We need to tell the kernel to stop sending us stuff. */
-	if (!tx_queue->num_txbdfree) {
-		netif_tx_stop_queue(txq);
-
-		dev->stats.tx_fifo_errors++;
-	}
-
-	/* Tell the DMA to go go go */
-	gfar_write(&regs->tstat, TSTAT_CLEAR_THALT >> tx_queue->qindex);
-
-	/* Unlock priv */
-	spin_unlock_irqrestore(&tx_queue->txlock, flags);
-
-	return NETDEV_TX_OK;
-}
-
-/* Stops the kernel queue, and halts the controller */
-static int gfar_close(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-
-	disable_napi(priv);
-
-	cancel_work_sync(&priv->reset_task);
-	stop_gfar(dev);
-
-	/* Disconnect from the PHY */
-	phy_disconnect(priv->phydev);
-	priv->phydev = NULL;
-
-	netif_tx_stop_all_queues(dev);
-
-	return 0;
-}
-
-/* Changes the mac address if the controller is not running. */
-static int gfar_set_mac_address(struct net_device *dev)
-{
-	gfar_set_mac_for_addr(dev, 0, dev->dev_addr);
-
-	return 0;
-}
-
-/* Check if rx parser should be activated */
-void gfar_check_rx_parser_mode(struct gfar_private *priv)
-{
-	struct gfar __iomem *regs;
-	u32 tempval;
-
-	regs = priv->gfargrp[0].regs;
-
-	tempval = gfar_read(&regs->rctrl);
-	/* If parse is no longer required, then disable parser */
-	if (tempval & RCTRL_REQ_PARSER)
-		tempval |= RCTRL_PRSDEP_INIT;
-	else
-		tempval &= ~RCTRL_PRSDEP_INIT;
-	gfar_write(&regs->rctrl, tempval);
-}
-
-/* Enables and disables VLAN insertion/extraction */
-void gfar_vlan_mode(struct net_device *dev, u32 features)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = NULL;
-	unsigned long flags;
-	u32 tempval;
-
-	regs = priv->gfargrp[0].regs;
-	local_irq_save(flags);
-	lock_rx_qs(priv);
-
-	if (features & NETIF_F_HW_VLAN_TX) {
-		/* Enable VLAN tag insertion */
-		tempval = gfar_read(&regs->tctrl);
-		tempval |= TCTRL_VLINS;
-		gfar_write(&regs->tctrl, tempval);
-	} else {
-		/* Disable VLAN tag insertion */
-		tempval = gfar_read(&regs->tctrl);
-		tempval &= ~TCTRL_VLINS;
-		gfar_write(&regs->tctrl, tempval);
-	}
-
-	if (features & NETIF_F_HW_VLAN_RX) {
-		/* Enable VLAN tag extraction */
-		tempval = gfar_read(&regs->rctrl);
-		tempval |= (RCTRL_VLEX | RCTRL_PRSDEP_INIT);
-		gfar_write(&regs->rctrl, tempval);
-	} else {
-		/* Disable VLAN tag extraction */
-		tempval = gfar_read(&regs->rctrl);
-		tempval &= ~RCTRL_VLEX;
-		gfar_write(&regs->rctrl, tempval);
-
-		gfar_check_rx_parser_mode(priv);
-	}
-
-	gfar_change_mtu(dev, dev->mtu);
-
-	unlock_rx_qs(priv);
-	local_irq_restore(flags);
-}
-
-static int gfar_change_mtu(struct net_device *dev, int new_mtu)
-{
-	int tempsize, tempval;
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	int oldsize = priv->rx_buffer_size;
-	int frame_size = new_mtu + ETH_HLEN;
-
-	if (gfar_is_vlan_on(priv))
-		frame_size += VLAN_HLEN;
-
-	if ((frame_size < 64) || (frame_size > JUMBO_FRAME_SIZE)) {
-		netif_err(priv, drv, dev, "Invalid MTU setting\n");
-		return -EINVAL;
-	}
-
-	if (gfar_uses_fcb(priv))
-		frame_size += GMAC_FCB_LEN;
-
-	frame_size += priv->padding;
-
-	tempsize =
-	    (frame_size & ~(INCREMENTAL_BUFFER_SIZE - 1)) +
-	    INCREMENTAL_BUFFER_SIZE;
-
-	/* Only stop and start the controller if it isn't already
-	 * stopped, and we changed something */
-	if ((oldsize != tempsize) && (dev->flags & IFF_UP))
-		stop_gfar(dev);
-
-	priv->rx_buffer_size = tempsize;
-
-	dev->mtu = new_mtu;
-
-	gfar_write(&regs->mrblr, priv->rx_buffer_size);
-	gfar_write(&regs->maxfrm, priv->rx_buffer_size);
-
-	/* If the mtu is larger than the max size for standard
-	 * ethernet frames (ie, a jumbo frame), then set maccfg2
-	 * to allow huge frames, and to check the length */
-	tempval = gfar_read(&regs->maccfg2);
-
-	if (priv->rx_buffer_size > DEFAULT_RX_BUFFER_SIZE ||
-			gfar_has_errata(priv, GFAR_ERRATA_74))
-		tempval |= (MACCFG2_HUGEFRAME | MACCFG2_LENGTHCHECK);
-	else
-		tempval &= ~(MACCFG2_HUGEFRAME | MACCFG2_LENGTHCHECK);
-
-	gfar_write(&regs->maccfg2, tempval);
-
-	if ((oldsize != tempsize) && (dev->flags & IFF_UP))
-		startup_gfar(dev);
-
-	return 0;
-}
-
-/* gfar_reset_task gets scheduled when a packet has not been
- * transmitted after a set amount of time.
- * For now, assume that clearing out all the structures, and
- * starting over will fix the problem.
- */
-static void gfar_reset_task(struct work_struct *work)
-{
-	struct gfar_private *priv = container_of(work, struct gfar_private,
-			reset_task);
-	struct net_device *dev = priv->ndev;
-
-	if (dev->flags & IFF_UP) {
-		netif_tx_stop_all_queues(dev);
-		stop_gfar(dev);
-		startup_gfar(dev);
-		netif_tx_start_all_queues(dev);
-	}
-
-	netif_tx_schedule_all(dev);
-}
-
-static void gfar_timeout(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-
-	dev->stats.tx_errors++;
-	schedule_work(&priv->reset_task);
-}
-
-static void gfar_align_skb(struct sk_buff *skb)
-{
-	/* We need the data buffer to be aligned properly.  We will reserve
-	 * as many bytes as needed to align the data properly
-	 */
-	skb_reserve(skb, RXBUF_ALIGNMENT -
-		(((unsigned long) skb->data) & (RXBUF_ALIGNMENT - 1)));
-}
-
-/* Interrupt Handler for Transmit complete */
-static int gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue)
-{
-	struct net_device *dev = tx_queue->dev;
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar_priv_rx_q *rx_queue = NULL;
-	struct txbd8 *bdp, *next = NULL;
-	struct txbd8 *lbdp = NULL;
-	struct txbd8 *base = tx_queue->tx_bd_base;
-	struct sk_buff *skb;
-	int skb_dirtytx;
-	int tx_ring_size = tx_queue->tx_ring_size;
-	int frags = 0, nr_txbds = 0;
-	int i;
-	int howmany = 0;
-	u32 lstatus;
-	size_t buflen;
-
-	rx_queue = priv->rx_queue[tx_queue->qindex];
-	bdp = tx_queue->dirty_tx;
-	skb_dirtytx = tx_queue->skb_dirtytx;
-
-	while ((skb = tx_queue->tx_skbuff[skb_dirtytx])) {
-		unsigned long flags;
-
-		frags = skb_shinfo(skb)->nr_frags;
-
-		/*
-		 * When time stamping, one additional TxBD must be freed.
-		 * Also, we need to dma_unmap_single() the TxPAL.
-		 */
-		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS))
-			nr_txbds = frags + 2;
-		else
-			nr_txbds = frags + 1;
-
-		lbdp = skip_txbd(bdp, nr_txbds - 1, base, tx_ring_size);
-
-		lstatus = lbdp->lstatus;
-
-		/* Only clean completed frames */
-		if ((lstatus & BD_LFLAG(TXBD_READY)) &&
-				(lstatus & BD_LENGTH_MASK))
-			break;
-
-		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS)) {
-			next = next_txbd(bdp, base, tx_ring_size);
-			buflen = next->length + GMAC_FCB_LEN;
-		} else
-			buflen = bdp->length;
-
-		dma_unmap_single(&priv->ofdev->dev, bdp->bufPtr,
-				buflen, DMA_TO_DEVICE);
-
-		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS)) {
-			struct skb_shared_hwtstamps shhwtstamps;
-			u64 *ns = (u64*) (((u32)skb->data + 0x10) & ~0x7);
-			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
-			shhwtstamps.hwtstamp = ns_to_ktime(*ns);
-			skb_tstamp_tx(skb, &shhwtstamps);
-			bdp->lstatus &= BD_LFLAG(TXBD_WRAP);
-			bdp = next;
-		}
-
-		bdp->lstatus &= BD_LFLAG(TXBD_WRAP);
-		bdp = next_txbd(bdp, base, tx_ring_size);
-
-		for (i = 0; i < frags; i++) {
-			dma_unmap_page(&priv->ofdev->dev,
-					bdp->bufPtr,
-					bdp->length,
-					DMA_TO_DEVICE);
-			bdp->lstatus &= BD_LFLAG(TXBD_WRAP);
-			bdp = next_txbd(bdp, base, tx_ring_size);
-		}
-
-		/*
-		 * If there's room in the queue (limit it to rx_buffer_size)
-		 * we add this skb back into the pool, if it's the right size
-		 */
-		if (skb_queue_len(&priv->rx_recycle) < rx_queue->rx_ring_size &&
-				skb_recycle_check(skb, priv->rx_buffer_size +
-					RXBUF_ALIGNMENT)) {
-			gfar_align_skb(skb);
-			skb_queue_head(&priv->rx_recycle, skb);
-		} else
-			dev_kfree_skb_any(skb);
-
-		tx_queue->tx_skbuff[skb_dirtytx] = NULL;
-
-		skb_dirtytx = (skb_dirtytx + 1) &
-			TX_RING_MOD_MASK(tx_ring_size);
-
-		howmany++;
-		spin_lock_irqsave(&tx_queue->txlock, flags);
-		tx_queue->num_txbdfree += nr_txbds;
-		spin_unlock_irqrestore(&tx_queue->txlock, flags);
-	}
-
-	/* If we freed a buffer, we can restart transmission, if necessary */
-	if (__netif_subqueue_stopped(dev, tx_queue->qindex) && tx_queue->num_txbdfree)
-		netif_wake_subqueue(dev, tx_queue->qindex);
-
-	/* Update dirty indicators */
-	tx_queue->skb_dirtytx = skb_dirtytx;
-	tx_queue->dirty_tx = bdp;
-
-	return howmany;
-}
-
-static void gfar_schedule_cleanup(struct gfar_priv_grp *gfargrp)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&gfargrp->grplock, flags);
-	if (napi_schedule_prep(&gfargrp->napi)) {
-		gfar_write(&gfargrp->regs->imask, IMASK_RTX_DISABLED);
-		__napi_schedule(&gfargrp->napi);
-	} else {
-		/*
-		 * Clear IEVENT, so interrupts aren't called again
-		 * because of the packets that have already arrived.
-		 */
-		gfar_write(&gfargrp->regs->ievent, IEVENT_RTX_MASK);
-	}
-	spin_unlock_irqrestore(&gfargrp->grplock, flags);
-
-}
-
-/* Interrupt Handler for Transmit complete */
-static irqreturn_t gfar_transmit(int irq, void *grp_id)
-{
-	gfar_schedule_cleanup((struct gfar_priv_grp *)grp_id);
-	return IRQ_HANDLED;
-}
-
-static void gfar_new_rxbdp(struct gfar_priv_rx_q *rx_queue, struct rxbd8 *bdp,
-		struct sk_buff *skb)
-{
-	struct net_device *dev = rx_queue->dev;
-	struct gfar_private *priv = netdev_priv(dev);
-	dma_addr_t buf;
-
-	buf = dma_map_single(&priv->ofdev->dev, skb->data,
-			     priv->rx_buffer_size, DMA_FROM_DEVICE);
-	gfar_init_rxbdp(rx_queue, bdp, buf);
-}
-
-static struct sk_buff * gfar_alloc_skb(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct sk_buff *skb = NULL;
-
-	skb = netdev_alloc_skb(dev, priv->rx_buffer_size + RXBUF_ALIGNMENT);
-	if (!skb)
-		return NULL;
-
-	gfar_align_skb(skb);
-
-	return skb;
-}
-
-struct sk_buff * gfar_new_skb(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct sk_buff *skb = NULL;
-
-	skb = skb_dequeue(&priv->rx_recycle);
-	if (!skb)
-		skb = gfar_alloc_skb(dev);
-
-	return skb;
-}
-
-static inline void count_errors(unsigned short status, struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct net_device_stats *stats = &dev->stats;
-	struct gfar_extra_stats *estats = &priv->extra_stats;
-
-	/* If the packet was truncated, none of the other errors
-	 * matter */
-	if (status & RXBD_TRUNCATED) {
-		stats->rx_length_errors++;
-
-		estats->rx_trunc++;
-
-		return;
-	}
-	/* Count the errors, if there were any */
-	if (status & (RXBD_LARGE | RXBD_SHORT)) {
-		stats->rx_length_errors++;
-
-		if (status & RXBD_LARGE)
-			estats->rx_large++;
-		else
-			estats->rx_short++;
-	}
-	if (status & RXBD_NONOCTET) {
-		stats->rx_frame_errors++;
-		estats->rx_nonoctet++;
-	}
-	if (status & RXBD_CRCERR) {
-		estats->rx_crcerr++;
-		stats->rx_crc_errors++;
-	}
-	if (status & RXBD_OVERRUN) {
-		estats->rx_overrun++;
-		stats->rx_crc_errors++;
-	}
-}
-
-irqreturn_t gfar_receive(int irq, void *grp_id)
-{
-	gfar_schedule_cleanup((struct gfar_priv_grp *)grp_id);
-	return IRQ_HANDLED;
-}
-
-static inline void gfar_rx_checksum(struct sk_buff *skb, struct rxfcb *fcb)
-{
-	/* If valid headers were found, and valid sums
-	 * were verified, then we tell the kernel that no
-	 * checksumming is necessary.  Otherwise, it is */
-	if ((fcb->flags & RXFCB_CSUM_MASK) == (RXFCB_CIP | RXFCB_CTU))
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-	else
-		skb_checksum_none_assert(skb);
-}
-
-
-/* gfar_process_frame() -- handle one incoming packet if skb
- * isn't NULL.  */
-static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb,
-			      int amount_pull)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct rxfcb *fcb = NULL;
-
-	int ret;
-
-	/* fcb is at the beginning if exists */
-	fcb = (struct rxfcb *)skb->data;
-
-	/* Remove the FCB from the skb */
-	/* Remove the padded bytes, if there are any */
-	if (amount_pull) {
-		skb_record_rx_queue(skb, fcb->rq);
-		skb_pull(skb, amount_pull);
-	}
-
-	/* Get receive timestamp from the skb */
-	if (priv->hwts_rx_en) {
-		struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
-		u64 *ns = (u64 *) skb->data;
-		memset(shhwtstamps, 0, sizeof(*shhwtstamps));
-		shhwtstamps->hwtstamp = ns_to_ktime(*ns);
-	}
-
-	if (priv->padding)
-		skb_pull(skb, priv->padding);
-
-	if (dev->features & NETIF_F_RXCSUM)
-		gfar_rx_checksum(skb, fcb);
-
-	/* Tell the skb what kind of packet this is */
-	skb->protocol = eth_type_trans(skb, dev);
-
-	/* Set vlan tag */
-	if (fcb->flags & RXFCB_VLN)
-		__vlan_hwaccel_put_tag(skb, fcb->vlctl);
-
-	/* Send the packet up the stack */
-	ret = netif_receive_skb(skb);
-
-	if (NET_RX_DROP == ret)
-		priv->extra_stats.kernel_dropped++;
-
-	return 0;
-}
-
-/* gfar_clean_rx_ring() -- Processes each frame in the rx ring
- *   until the budget/quota has been reached. Returns the number
- *   of frames handled
- */
-int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
-{
-	struct net_device *dev = rx_queue->dev;
-	struct rxbd8 *bdp, *base;
-	struct sk_buff *skb;
-	int pkt_len;
-	int amount_pull;
-	int howmany = 0;
-	struct gfar_private *priv = netdev_priv(dev);
-
-	/* Get the first full descriptor */
-	bdp = rx_queue->cur_rx;
-	base = rx_queue->rx_bd_base;
-
-	amount_pull = (gfar_uses_fcb(priv) ? GMAC_FCB_LEN : 0);
-
-	while (!((bdp->status & RXBD_EMPTY) || (--rx_work_limit < 0))) {
-		struct sk_buff *newskb;
-		rmb();
-
-		/* Add another skb for the future */
-		newskb = gfar_new_skb(dev);
-
-		skb = rx_queue->rx_skbuff[rx_queue->skb_currx];
-
-		dma_unmap_single(&priv->ofdev->dev, bdp->bufPtr,
-				priv->rx_buffer_size, DMA_FROM_DEVICE);
-
-		if (unlikely(!(bdp->status & RXBD_ERR) &&
-				bdp->length > priv->rx_buffer_size))
-			bdp->status = RXBD_LARGE;
-
-		/* We drop the frame if we failed to allocate a new buffer */
-		if (unlikely(!newskb || !(bdp->status & RXBD_LAST) ||
-				 bdp->status & RXBD_ERR)) {
-			count_errors(bdp->status, dev);
-
-			if (unlikely(!newskb))
-				newskb = skb;
-			else if (skb)
-				skb_queue_head(&priv->rx_recycle, skb);
-		} else {
-			/* Increment the number of packets */
-			rx_queue->stats.rx_packets++;
-			howmany++;
-
-			if (likely(skb)) {
-				pkt_len = bdp->length - ETH_FCS_LEN;
-				/* Remove the FCS from the packet length */
-				skb_put(skb, pkt_len);
-				rx_queue->stats.rx_bytes += pkt_len;
-				skb_record_rx_queue(skb, rx_queue->qindex);
-				gfar_process_frame(dev, skb, amount_pull);
-
-			} else {
-				netif_warn(priv, rx_err, dev, "Missing skb!\n");
-				rx_queue->stats.rx_dropped++;
-				priv->extra_stats.rx_skbmissing++;
-			}
-
-		}
-
-		rx_queue->rx_skbuff[rx_queue->skb_currx] = newskb;
-
-		/* Setup the new bdp */
-		gfar_new_rxbdp(rx_queue, bdp, newskb);
-
-		/* Update to the next pointer */
-		bdp = next_bd(bdp, base, rx_queue->rx_ring_size);
-
-		/* update to point at the next skb */
-		rx_queue->skb_currx =
-		    (rx_queue->skb_currx + 1) &
-		    RX_RING_MOD_MASK(rx_queue->rx_ring_size);
-	}
-
-	/* Update the current rxbd pointer to be the next one */
-	rx_queue->cur_rx = bdp;
-
-	return howmany;
-}
-
-static int gfar_poll(struct napi_struct *napi, int budget)
-{
-	struct gfar_priv_grp *gfargrp = container_of(napi,
-			struct gfar_priv_grp, napi);
-	struct gfar_private *priv = gfargrp->priv;
-	struct gfar __iomem *regs = gfargrp->regs;
-	struct gfar_priv_tx_q *tx_queue = NULL;
-	struct gfar_priv_rx_q *rx_queue = NULL;
-	int rx_cleaned = 0, budget_per_queue = 0, rx_cleaned_per_queue = 0;
-	int tx_cleaned = 0, i, left_over_budget = budget;
-	unsigned long serviced_queues = 0;
-	int num_queues = 0;
-
-	num_queues = gfargrp->num_rx_queues;
-	budget_per_queue = budget/num_queues;
-
-	/* Clear IEVENT, so interrupts aren't called again
-	 * because of the packets that have already arrived */
-	gfar_write(&regs->ievent, IEVENT_RTX_MASK);
-
-	while (num_queues && left_over_budget) {
-
-		budget_per_queue = left_over_budget/num_queues;
-		left_over_budget = 0;
-
-		for_each_set_bit(i, &gfargrp->rx_bit_map, priv->num_rx_queues) {
-			if (test_bit(i, &serviced_queues))
-				continue;
-			rx_queue = priv->rx_queue[i];
-			tx_queue = priv->tx_queue[rx_queue->qindex];
-
-			tx_cleaned += gfar_clean_tx_ring(tx_queue);
-			rx_cleaned_per_queue = gfar_clean_rx_ring(rx_queue,
-							budget_per_queue);
-			rx_cleaned += rx_cleaned_per_queue;
-			if(rx_cleaned_per_queue < budget_per_queue) {
-				left_over_budget = left_over_budget +
-					(budget_per_queue - rx_cleaned_per_queue);
-				set_bit(i, &serviced_queues);
-				num_queues--;
-			}
-		}
-	}
-
-	if (tx_cleaned)
-		return budget;
-
-	if (rx_cleaned < budget) {
-		napi_complete(napi);
-
-		/* Clear the halt bit in RSTAT */
-		gfar_write(&regs->rstat, gfargrp->rstat);
-
-		gfar_write(&regs->imask, IMASK_DEFAULT);
-
-		/* If we are coalescing interrupts, update the timer */
-		/* Otherwise, clear it */
-		gfar_configure_coalescing(priv,
-				gfargrp->rx_bit_map, gfargrp->tx_bit_map);
-	}
-
-	return rx_cleaned;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling 'interrupt' - used by things like netconsole to send skbs
- * without having to re-enable interrupts. It's not called while
- * the interrupt routine is executing.
- */
-static void gfar_netpoll(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	int i = 0;
-
-	/* If the device has multiple interrupts, run tx/rx */
-	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
-		for (i = 0; i < priv->num_grps; i++) {
-			disable_irq(priv->gfargrp[i].interruptTransmit);
-			disable_irq(priv->gfargrp[i].interruptReceive);
-			disable_irq(priv->gfargrp[i].interruptError);
-			gfar_interrupt(priv->gfargrp[i].interruptTransmit,
-						&priv->gfargrp[i]);
-			enable_irq(priv->gfargrp[i].interruptError);
-			enable_irq(priv->gfargrp[i].interruptReceive);
-			enable_irq(priv->gfargrp[i].interruptTransmit);
-		}
-	} else {
-		for (i = 0; i < priv->num_grps; i++) {
-			disable_irq(priv->gfargrp[i].interruptTransmit);
-			gfar_interrupt(priv->gfargrp[i].interruptTransmit,
-						&priv->gfargrp[i]);
-			enable_irq(priv->gfargrp[i].interruptTransmit);
-		}
-	}
-}
-#endif
-
-/* The interrupt handler for devices with one interrupt */
-static irqreturn_t gfar_interrupt(int irq, void *grp_id)
-{
-	struct gfar_priv_grp *gfargrp = grp_id;
-
-	/* Save ievent for future reference */
-	u32 events = gfar_read(&gfargrp->regs->ievent);
-
-	/* Check for reception */
-	if (events & IEVENT_RX_MASK)
-		gfar_receive(irq, grp_id);
-
-	/* Check for transmit completion */
-	if (events & IEVENT_TX_MASK)
-		gfar_transmit(irq, grp_id);
-
-	/* Check for errors */
-	if (events & IEVENT_ERR_MASK)
-		gfar_error(irq, grp_id);
-
-	return IRQ_HANDLED;
-}
-
-/* Called every time the controller might need to be made
- * aware of new link state.  The PHY code conveys this
- * information through variables in the phydev structure, and this
- * function converts those variables into the appropriate
- * register values, and can bring down the device if needed.
- */
-static void adjust_link(struct net_device *dev)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	unsigned long flags;
-	struct phy_device *phydev = priv->phydev;
-	int new_state = 0;
-
-	local_irq_save(flags);
-	lock_tx_qs(priv);
-
-	if (phydev->link) {
-		u32 tempval = gfar_read(&regs->maccfg2);
-		u32 ecntrl = gfar_read(&regs->ecntrl);
-
-		/* Now we make sure that we can be in full duplex mode.
-		 * If not, we operate in half-duplex mode. */
-		if (phydev->duplex != priv->oldduplex) {
-			new_state = 1;
-			if (!(phydev->duplex))
-				tempval &= ~(MACCFG2_FULL_DUPLEX);
-			else
-				tempval |= MACCFG2_FULL_DUPLEX;
-
-			priv->oldduplex = phydev->duplex;
-		}
-
-		if (phydev->speed != priv->oldspeed) {
-			new_state = 1;
-			switch (phydev->speed) {
-			case 1000:
-				tempval =
-				    ((tempval & ~(MACCFG2_IF)) | MACCFG2_GMII);
-
-				ecntrl &= ~(ECNTRL_R100);
-				break;
-			case 100:
-			case 10:
-				tempval =
-				    ((tempval & ~(MACCFG2_IF)) | MACCFG2_MII);
-
-				/* Reduced mode distinguishes
-				 * between 10 and 100 */
-				if (phydev->speed == SPEED_100)
-					ecntrl |= ECNTRL_R100;
-				else
-					ecntrl &= ~(ECNTRL_R100);
-				break;
-			default:
-				netif_warn(priv, link, dev,
-					   "Ack!  Speed (%d) is not 10/100/1000!\n",
-					   phydev->speed);
-				break;
-			}
-
-			priv->oldspeed = phydev->speed;
-		}
-
-		gfar_write(&regs->maccfg2, tempval);
-		gfar_write(&regs->ecntrl, ecntrl);
-
-		if (!priv->oldlink) {
-			new_state = 1;
-			priv->oldlink = 1;
-		}
-	} else if (priv->oldlink) {
-		new_state = 1;
-		priv->oldlink = 0;
-		priv->oldspeed = 0;
-		priv->oldduplex = -1;
-	}
-
-	if (new_state && netif_msg_link(priv))
-		phy_print_status(phydev);
-	unlock_tx_qs(priv);
-	local_irq_restore(flags);
-}
-
-/* Update the hash table based on the current list of multicast
- * addresses we subscribe to.  Also, change the promiscuity of
- * the device based on the flags (this function is called
- * whenever dev->flags is changed */
-static void gfar_set_multi(struct net_device *dev)
-{
-	struct netdev_hw_addr *ha;
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	u32 tempval;
-
-	if (dev->flags & IFF_PROMISC) {
-		/* Set RCTRL to PROM */
-		tempval = gfar_read(&regs->rctrl);
-		tempval |= RCTRL_PROM;
-		gfar_write(&regs->rctrl, tempval);
-	} else {
-		/* Set RCTRL to not PROM */
-		tempval = gfar_read(&regs->rctrl);
-		tempval &= ~(RCTRL_PROM);
-		gfar_write(&regs->rctrl, tempval);
-	}
-
-	if (dev->flags & IFF_ALLMULTI) {
-		/* Set the hash to rx all multicast frames */
-		gfar_write(&regs->igaddr0, 0xffffffff);
-		gfar_write(&regs->igaddr1, 0xffffffff);
-		gfar_write(&regs->igaddr2, 0xffffffff);
-		gfar_write(&regs->igaddr3, 0xffffffff);
-		gfar_write(&regs->igaddr4, 0xffffffff);
-		gfar_write(&regs->igaddr5, 0xffffffff);
-		gfar_write(&regs->igaddr6, 0xffffffff);
-		gfar_write(&regs->igaddr7, 0xffffffff);
-		gfar_write(&regs->gaddr0, 0xffffffff);
-		gfar_write(&regs->gaddr1, 0xffffffff);
-		gfar_write(&regs->gaddr2, 0xffffffff);
-		gfar_write(&regs->gaddr3, 0xffffffff);
-		gfar_write(&regs->gaddr4, 0xffffffff);
-		gfar_write(&regs->gaddr5, 0xffffffff);
-		gfar_write(&regs->gaddr6, 0xffffffff);
-		gfar_write(&regs->gaddr7, 0xffffffff);
-	} else {
-		int em_num;
-		int idx;
-
-		/* zero out the hash */
-		gfar_write(&regs->igaddr0, 0x0);
-		gfar_write(&regs->igaddr1, 0x0);
-		gfar_write(&regs->igaddr2, 0x0);
-		gfar_write(&regs->igaddr3, 0x0);
-		gfar_write(&regs->igaddr4, 0x0);
-		gfar_write(&regs->igaddr5, 0x0);
-		gfar_write(&regs->igaddr6, 0x0);
-		gfar_write(&regs->igaddr7, 0x0);
-		gfar_write(&regs->gaddr0, 0x0);
-		gfar_write(&regs->gaddr1, 0x0);
-		gfar_write(&regs->gaddr2, 0x0);
-		gfar_write(&regs->gaddr3, 0x0);
-		gfar_write(&regs->gaddr4, 0x0);
-		gfar_write(&regs->gaddr5, 0x0);
-		gfar_write(&regs->gaddr6, 0x0);
-		gfar_write(&regs->gaddr7, 0x0);
-
-		/* If we have extended hash tables, we need to
-		 * clear the exact match registers to prepare for
-		 * setting them */
-		if (priv->extended_hash) {
-			em_num = GFAR_EM_NUM + 1;
-			gfar_clear_exact_match(dev);
-			idx = 1;
-		} else {
-			idx = 0;
-			em_num = 0;
-		}
-
-		if (netdev_mc_empty(dev))
-			return;
-
-		/* Parse the list, and set the appropriate bits */
-		netdev_for_each_mc_addr(ha, dev) {
-			if (idx < em_num) {
-				gfar_set_mac_for_addr(dev, idx, ha->addr);
-				idx++;
-			} else
-				gfar_set_hash_for_addr(dev, ha->addr);
-		}
-	}
-}
-
-
-/* Clears each of the exact match registers to zero, so they
- * don't interfere with normal reception */
-static void gfar_clear_exact_match(struct net_device *dev)
-{
-	int idx;
-	static const u8 zero_arr[MAC_ADDR_LEN] = {0, 0, 0, 0, 0, 0};
-
-	for(idx = 1;idx < GFAR_EM_NUM + 1;idx++)
-		gfar_set_mac_for_addr(dev, idx, zero_arr);
-}
-
-/* Set the appropriate hash bit for the given addr */
-/* The algorithm works like so:
- * 1) Take the Destination Address (ie the multicast address), and
- * do a CRC on it (little endian), and reverse the bits of the
- * result.
- * 2) Use the 8 most significant bits as a hash into a 256-entry
- * table.  The table is controlled through 8 32-bit registers:
- * gaddr0-7.  gaddr0's MSB is entry 0, and gaddr7's LSB is
- * gaddr7.  This means that the 3 most significant bits in the
- * hash index which gaddr register to use, and the 5 other bits
- * indicate which bit (assuming an IBM numbering scheme, which
- * for PowerPC (tm) is usually the case) in the register holds
- * the entry. */
-static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr)
-{
-	u32 tempval;
-	struct gfar_private *priv = netdev_priv(dev);
-	u32 result = ether_crc(MAC_ADDR_LEN, addr);
-	int width = priv->hash_width;
-	u8 whichbit = (result >> (32 - width)) & 0x1f;
-	u8 whichreg = result >> (32 - width + 5);
-	u32 value = (1 << (31-whichbit));
-
-	tempval = gfar_read(priv->hash_regs[whichreg]);
-	tempval |= value;
-	gfar_write(priv->hash_regs[whichreg], tempval);
-}
-
-
-/* There are multiple MAC Address register pairs on some controllers
- * This function sets the numth pair to a given address
- */
-static void gfar_set_mac_for_addr(struct net_device *dev, int num,
-				  const u8 *addr)
-{
-	struct gfar_private *priv = netdev_priv(dev);
-	struct gfar __iomem *regs = priv->gfargrp[0].regs;
-	int idx;
-	char tmpbuf[MAC_ADDR_LEN];
-	u32 tempval;
-	u32 __iomem *macptr = &regs->macstnaddr1;
-
-	macptr += num*2;
-
-	/* Now copy it into the mac registers backwards, cuz */
-	/* little endian is silly */
-	for (idx = 0; idx < MAC_ADDR_LEN; idx++)
-		tmpbuf[MAC_ADDR_LEN - 1 - idx] = addr[idx];
-
-	gfar_write(macptr, *((u32 *) (tmpbuf)));
-
-	tempval = *((u32 *) (tmpbuf + 4));
-
-	gfar_write(macptr+1, tempval);
-}
-
-/* GFAR error interrupt handler */
-static irqreturn_t gfar_error(int irq, void *grp_id)
-{
-	struct gfar_priv_grp *gfargrp = grp_id;
-	struct gfar __iomem *regs = gfargrp->regs;
-	struct gfar_private *priv= gfargrp->priv;
-	struct net_device *dev = priv->ndev;
-
-	/* Save ievent for future reference */
-	u32 events = gfar_read(&regs->ievent);
-
-	/* Clear IEVENT */
-	gfar_write(&regs->ievent, events & IEVENT_ERR_MASK);
-
-	/* Magic Packet is not an error. */
-	if ((priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET) &&
-	    (events & IEVENT_MAG))
-		events &= ~IEVENT_MAG;
-
-	/* Hmm... */
-	if (netif_msg_rx_err(priv) || netif_msg_tx_err(priv))
-		netdev_dbg(dev, "error interrupt (ievent=0x%08x imask=0x%08x)\n",
-			   events, gfar_read(&regs->imask));
-
-	/* Update the error counters */
-	if (events & IEVENT_TXE) {
-		dev->stats.tx_errors++;
-
-		if (events & IEVENT_LC)
-			dev->stats.tx_window_errors++;
-		if (events & IEVENT_CRL)
-			dev->stats.tx_aborted_errors++;
-		if (events & IEVENT_XFUN) {
-			unsigned long flags;
-
-			netif_dbg(priv, tx_err, dev,
-				  "TX FIFO underrun, packet dropped\n");
-			dev->stats.tx_dropped++;
-			priv->extra_stats.tx_underrun++;
-
-			local_irq_save(flags);
-			lock_tx_qs(priv);
-
-			/* Reactivate the Tx Queues */
-			gfar_write(&regs->tstat, gfargrp->tstat);
-
-			unlock_tx_qs(priv);
-			local_irq_restore(flags);
-		}
-		netif_dbg(priv, tx_err, dev, "Transmit Error\n");
-	}
-	if (events & IEVENT_BSY) {
-		dev->stats.rx_errors++;
-		priv->extra_stats.rx_bsy++;
-
-		gfar_receive(irq, grp_id);
-
-		netif_dbg(priv, rx_err, dev, "busy error (rstat: %x)\n",
-			  gfar_read(&regs->rstat));
-	}
-	if (events & IEVENT_BABR) {
-		dev->stats.rx_errors++;
-		priv->extra_stats.rx_babr++;
-
-		netif_dbg(priv, rx_err, dev, "babbling RX error\n");
-	}
-	if (events & IEVENT_EBERR) {
-		priv->extra_stats.eberr++;
-		netif_dbg(priv, rx_err, dev, "bus error\n");
-	}
-	if (events & IEVENT_RXC)
-		netif_dbg(priv, rx_status, dev, "control frame\n");
-
-	if (events & IEVENT_BABT) {
-		priv->extra_stats.tx_babt++;
-		netif_dbg(priv, tx_err, dev, "babbling TX error\n");
-	}
-	return IRQ_HANDLED;
-}
-
-static struct of_device_id gfar_match[] =
-{
-	{
-		.type = "network",
-		.compatible = "gianfar",
-	},
-	{
-		.compatible = "fsl,etsec2",
-	},
-	{},
-};
-MODULE_DEVICE_TABLE(of, gfar_match);
-
-/* Structure for a device driver */
-static struct platform_driver gfar_driver = {
-	.driver = {
-		.name = "fsl-gianfar",
-		.owner = THIS_MODULE,
-		.pm = GFAR_PM_OPS,
-		.of_match_table = gfar_match,
-	},
-	.probe = gfar_probe,
-	.remove = gfar_remove,
-};
-
-static int __init gfar_init(void)
-{
-	return platform_driver_register(&gfar_driver);
-}
-
-static void __exit gfar_exit(void)
-{
-	platform_driver_unregister(&gfar_driver);
-}
-
-module_init(gfar_init);
-module_exit(gfar_exit);
-