amd: Move AMD (Lance) chipset drivers

Moves the drivers for the AMD chipsets into drivers/net/ethernet/amd/
and the necessary Kconfig and Makfile changes.

The au1000 (Alchemy) driver was also moved into the same directory
even though it is not a "Lance" driver.

CC: Peter Maydell <pmaydell@chiark.greenend.org.uk>
CC: Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
CC: "Maciej W. Rozycki" <macro@linux-mips.org>
CC: Donald Becker <becker@scyld.com>
CC: Sam Creasey <sammy@users.qual.net>
CC: Miguel de Icaza <miguel@nuclecu.unam.mx>
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
CC: Don Fry <pcnet32@frontier.com>
CC: Geert Uytterhoeven <geert@linux-m68k.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: David Davies <davies@maniac.ultranet.com>
CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de>
CC: Pete Popov <ppopov@embeddedalley.com>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: "Roger C. Pao" <rpao@paonet.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 1332 deletions

diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
deleted file mode 100644
index b9debcfb61a0..000000000000
--- a/drivers/net/au1000_eth.c
+++ /dev/null
@@ -1,1332 +0,0 @@
-/*
- *
- * Alchemy Au1x00 ethernet driver
- *
- * Copyright 2001-2003, 2006 MontaVista Software Inc.
- * Copyright 2002 TimeSys Corp.
- * Added ethtool/mii-tool support,
- * Copyright 2004 Matt Porter <mporter@kernel.crashing.org>
- * Update: 2004 Bjoern Riemer, riemer@fokus.fraunhofer.de
- * or riemer@riemer-nt.de: fixed the link beat detection with
- * ioctls (SIOCGMIIPHY)
- * Copyright 2006 Herbert Valerio Riedel <hvr@gnu.org>
- *  converted to use linux-2.6.x's PHY framework
- *
- * Author: MontaVista Software, Inc.
- *		ppopov@mvista.com or source@mvista.com
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- *
- *
- */
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/capability.h>
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/in.h>
-#include <linux/ioport.h>
-#include <linux/bitops.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/skbuff.h>
-#include <linux/delay.h>
-#include <linux/crc32.h>
-#include <linux/phy.h>
-#include <linux/platform_device.h>
-#include <linux/cpu.h>
-#include <linux/io.h>
-
-#include <asm/mipsregs.h>
-#include <asm/irq.h>
-#include <asm/processor.h>
-
-#include <au1000.h>
-#include <au1xxx_eth.h>
-#include <prom.h>
-
-#include "au1000_eth.h"
-
-#ifdef AU1000_ETH_DEBUG
-static int au1000_debug = 5;
-#else
-static int au1000_debug = 3;
-#endif
-
-#define AU1000_DEF_MSG_ENABLE	(NETIF_MSG_DRV	| \
-				NETIF_MSG_PROBE	| \
-				NETIF_MSG_LINK)
-
-#define DRV_NAME	"au1000_eth"
-#define DRV_VERSION	"1.7"
-#define DRV_AUTHOR	"Pete Popov <ppopov@embeddedalley.com>"
-#define DRV_DESC	"Au1xxx on-chip Ethernet driver"
-
-MODULE_AUTHOR(DRV_AUTHOR);
-MODULE_DESCRIPTION(DRV_DESC);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-/*
- * Theory of operation
- *
- * The Au1000 MACs use a simple rx and tx descriptor ring scheme.
- * There are four receive and four transmit descriptors.  These
- * descriptors are not in memory; rather, they are just a set of
- * hardware registers.
- *
- * Since the Au1000 has a coherent data cache, the receive and
- * transmit buffers are allocated from the KSEG0 segment. The
- * hardware registers, however, are still mapped at KSEG1 to
- * make sure there's no out-of-order writes, and that all writes
- * complete immediately.
- */
-
-/*
- * board-specific configurations
- *
- * PHY detection algorithm
- *
- * If phy_static_config is undefined, the PHY setup is
- * autodetected:
- *
- * mii_probe() first searches the current MAC's MII bus for a PHY,
- * selecting the first (or last, if phy_search_highest_addr is
- * defined) PHY address not already claimed by another netdev.
- *
- * If nothing was found that way when searching for the 2nd ethernet
- * controller's PHY and phy1_search_mac0 is defined, then
- * the first MII bus is searched as well for an unclaimed PHY; this is
- * needed in case of a dual-PHY accessible only through the MAC0's MII
- * bus.
- *
- * Finally, if no PHY is found, then the corresponding ethernet
- * controller is not registered to the network subsystem.
- */
-
-/* autodetection defaults: phy1_search_mac0 */
-
-/* static PHY setup
- *
- * most boards PHY setup should be detectable properly with the
- * autodetection algorithm in mii_probe(), but in some cases (e.g. if
- * you have a switch attached, or want to use the PHY's interrupt
- * notification capabilities) you can provide a static PHY
- * configuration here
- *
- * IRQs may only be set, if a PHY address was configured
- * If a PHY address is given, also a bus id is required to be set
- *
- * ps: make sure the used irqs are configured properly in the board
- * specific irq-map
- */
-
-static void au1000_enable_mac(struct net_device *dev, int force_reset)
-{
-	unsigned long flags;
-	struct au1000_private *aup = netdev_priv(dev);
-
-	spin_lock_irqsave(&aup->lock, flags);
-
-	if (force_reset || (!aup->mac_enabled)) {
-		writel(MAC_EN_CLOCK_ENABLE, aup->enable);
-		au_sync_delay(2);
-		writel((MAC_EN_RESET0 | MAC_EN_RESET1 | MAC_EN_RESET2
-				| MAC_EN_CLOCK_ENABLE), aup->enable);
-		au_sync_delay(2);
-
-		aup->mac_enabled = 1;
-	}
-
-	spin_unlock_irqrestore(&aup->lock, flags);
-}
-
-/*
- * MII operations
- */
-static int au1000_mdio_read(struct net_device *dev, int phy_addr, int reg)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	u32 *const mii_control_reg = &aup->mac->mii_control;
-	u32 *const mii_data_reg = &aup->mac->mii_data;
-	u32 timedout = 20;
-	u32 mii_control;
-
-	while (readl(mii_control_reg) & MAC_MII_BUSY) {
-		mdelay(1);
-		if (--timedout == 0) {
-			netdev_err(dev, "read_MII busy timeout!!\n");
-			return -1;
-		}
-	}
-
-	mii_control = MAC_SET_MII_SELECT_REG(reg) |
-		MAC_SET_MII_SELECT_PHY(phy_addr) | MAC_MII_READ;
-
-	writel(mii_control, mii_control_reg);
-
-	timedout = 20;
-	while (readl(mii_control_reg) & MAC_MII_BUSY) {
-		mdelay(1);
-		if (--timedout == 0) {
-			netdev_err(dev, "mdio_read busy timeout!!\n");
-			return -1;
-		}
-	}
-	return readl(mii_data_reg);
-}
-
-static void au1000_mdio_write(struct net_device *dev, int phy_addr,
-			      int reg, u16 value)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	u32 *const mii_control_reg = &aup->mac->mii_control;
-	u32 *const mii_data_reg = &aup->mac->mii_data;
-	u32 timedout = 20;
-	u32 mii_control;
-
-	while (readl(mii_control_reg) & MAC_MII_BUSY) {
-		mdelay(1);
-		if (--timedout == 0) {
-			netdev_err(dev, "mdio_write busy timeout!!\n");
-			return;
-		}
-	}
-
-	mii_control = MAC_SET_MII_SELECT_REG(reg) |
-		MAC_SET_MII_SELECT_PHY(phy_addr) | MAC_MII_WRITE;
-
-	writel(value, mii_data_reg);
-	writel(mii_control, mii_control_reg);
-}
-
-static int au1000_mdiobus_read(struct mii_bus *bus, int phy_addr, int regnum)
-{
-	/* WARNING: bus->phy_map[phy_addr].attached_dev == dev does
-	 * _NOT_ hold (e.g. when PHY is accessed through other MAC's MII bus)
-	 */
-	struct net_device *const dev = bus->priv;
-
-	/* make sure the MAC associated with this
-	 * mii_bus is enabled
-	 */
-	au1000_enable_mac(dev, 0);
-
-	return au1000_mdio_read(dev, phy_addr, regnum);
-}
-
-static int au1000_mdiobus_write(struct mii_bus *bus, int phy_addr, int regnum,
-				u16 value)
-{
-	struct net_device *const dev = bus->priv;
-
-	/* make sure the MAC associated with this
-	 * mii_bus is enabled
-	 */
-	au1000_enable_mac(dev, 0);
-
-	au1000_mdio_write(dev, phy_addr, regnum, value);
-	return 0;
-}
-
-static int au1000_mdiobus_reset(struct mii_bus *bus)
-{
-	struct net_device *const dev = bus->priv;
-
-	/* make sure the MAC associated with this
-	 * mii_bus is enabled
-	 */
-	au1000_enable_mac(dev, 0);
-
-	return 0;
-}
-
-static void au1000_hard_stop(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	u32 reg;
-
-	netif_dbg(aup, drv, dev, "hard stop\n");
-
-	reg = readl(&aup->mac->control);
-	reg &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE);
-	writel(reg, &aup->mac->control);
-	au_sync_delay(10);
-}
-
-static void au1000_enable_rx_tx(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	u32 reg;
-
-	netif_dbg(aup, hw, dev, "enable_rx_tx\n");
-
-	reg = readl(&aup->mac->control);
-	reg |= (MAC_RX_ENABLE | MAC_TX_ENABLE);
-	writel(reg, &aup->mac->control);
-	au_sync_delay(10);
-}
-
-static void
-au1000_adjust_link(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	struct phy_device *phydev = aup->phy_dev;
-	unsigned long flags;
-	u32 reg;
-
-	int status_change = 0;
-
-	BUG_ON(!aup->phy_dev);
-
-	spin_lock_irqsave(&aup->lock, flags);
-
-	if (phydev->link && (aup->old_speed != phydev->speed)) {
-		/* speed changed */
-
-		switch (phydev->speed) {
-		case SPEED_10:
-		case SPEED_100:
-			break;
-		default:
-			netdev_warn(dev, "Speed (%d) is not 10/100 ???\n",
-							phydev->speed);
-			break;
-		}
-
-		aup->old_speed = phydev->speed;
-
-		status_change = 1;
-	}
-
-	if (phydev->link && (aup->old_duplex != phydev->duplex)) {
-		/* duplex mode changed */
-
-		/* switching duplex mode requires to disable rx and tx! */
-		au1000_hard_stop(dev);
-
-		reg = readl(&aup->mac->control);
-		if (DUPLEX_FULL == phydev->duplex) {
-			reg |= MAC_FULL_DUPLEX;
-			reg &= ~MAC_DISABLE_RX_OWN;
-		} else {
-			reg &= ~MAC_FULL_DUPLEX;
-			reg |= MAC_DISABLE_RX_OWN;
-		}
-		writel(reg, &aup->mac->control);
-		au_sync_delay(1);
-
-		au1000_enable_rx_tx(dev);
-		aup->old_duplex = phydev->duplex;
-
-		status_change = 1;
-	}
-
-	if (phydev->link != aup->old_link) {
-		/* link state changed */
-
-		if (!phydev->link) {
-			/* link went down */
-			aup->old_speed = 0;
-			aup->old_duplex = -1;
-		}
-
-		aup->old_link = phydev->link;
-		status_change = 1;
-	}
-
-	spin_unlock_irqrestore(&aup->lock, flags);
-
-	if (status_change) {
-		if (phydev->link)
-			netdev_info(dev, "link up (%d/%s)\n",
-			       phydev->speed,
-			       DUPLEX_FULL == phydev->duplex ? "Full" : "Half");
-		else
-			netdev_info(dev, "link down\n");
-	}
-}
-
-static int au1000_mii_probe(struct net_device *dev)
-{
-	struct au1000_private *const aup = netdev_priv(dev);
-	struct phy_device *phydev = NULL;
-	int phy_addr;
-
-	if (aup->phy_static_config) {
-		BUG_ON(aup->mac_id < 0 || aup->mac_id > 1);
-
-		if (aup->phy_addr)
-			phydev = aup->mii_bus->phy_map[aup->phy_addr];
-		else
-			netdev_info(dev, "using PHY-less setup\n");
-		return 0;
-	}
-
-	/* find the first (lowest address) PHY
-	 * on the current MAC's MII bus
-	 */
-	for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
-		if (aup->mii_bus->phy_map[phy_addr]) {
-			phydev = aup->mii_bus->phy_map[phy_addr];
-			if (!aup->phy_search_highest_addr)
-				/* break out with first one found */
-				break;
-		}
-
-	if (aup->phy1_search_mac0) {
-		/* try harder to find a PHY */
-		if (!phydev && (aup->mac_id == 1)) {
-			/* no PHY found, maybe we have a dual PHY? */
-			dev_info(&dev->dev, ": no PHY found on MAC1, "
-				"let's see if it's attached to MAC0...\n");
-
-			/* find the first (lowest address) non-attached
-			 * PHY on the MAC0 MII bus
-			 */
-			for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
-				struct phy_device *const tmp_phydev =
-					aup->mii_bus->phy_map[phy_addr];
-
-				if (aup->mac_id == 1)
-					break;
-
-				/* no PHY here... */
-				if (!tmp_phydev)
-					continue;
-
-				/* already claimed by MAC0 */
-				if (tmp_phydev->attached_dev)
-					continue;
-
-				phydev = tmp_phydev;
-				break; /* found it */
-			}
-		}
-	}
-
-	if (!phydev) {
-		netdev_err(dev, "no PHY found\n");
-		return -1;
-	}
-
-	/* now we are supposed to have a proper phydev, to attach to... */
-	BUG_ON(phydev->attached_dev);
-
-	phydev = phy_connect(dev, dev_name(&phydev->dev), &au1000_adjust_link,
-			0, PHY_INTERFACE_MODE_MII);
-
-	if (IS_ERR(phydev)) {
-		netdev_err(dev, "Could not attach to PHY\n");
-		return PTR_ERR(phydev);
-	}
-
-	/* mask with MAC supported features */
-	phydev->supported &= (SUPPORTED_10baseT_Half
-			      | SUPPORTED_10baseT_Full
-			      | SUPPORTED_100baseT_Half
-			      | SUPPORTED_100baseT_Full
-			      | SUPPORTED_Autoneg
-			      /* | SUPPORTED_Pause | SUPPORTED_Asym_Pause */
-			      | SUPPORTED_MII
-			      | SUPPORTED_TP);
-
-	phydev->advertising = phydev->supported;
-
-	aup->old_link = 0;
-	aup->old_speed = 0;
-	aup->old_duplex = -1;
-	aup->phy_dev = phydev;
-
-	netdev_info(dev, "attached PHY driver [%s] "
-	       "(mii_bus:phy_addr=%s, irq=%d)\n",
-	       phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
-
-	return 0;
-}
-
-
-/*
- * Buffer allocation/deallocation routines. The buffer descriptor returned
- * has the virtual and dma address of a buffer suitable for
- * both, receive and transmit operations.
- */
-static struct db_dest *au1000_GetFreeDB(struct au1000_private *aup)
-{
-	struct db_dest *pDB;
-	pDB = aup->pDBfree;
-
-	if (pDB)
-		aup->pDBfree = pDB->pnext;
-
-	return pDB;
-}
-
-void au1000_ReleaseDB(struct au1000_private *aup, struct db_dest *pDB)
-{
-	struct db_dest *pDBfree = aup->pDBfree;
-	if (pDBfree)
-		pDBfree->pnext = pDB;
-	aup->pDBfree = pDB;
-}
-
-static void au1000_reset_mac_unlocked(struct net_device *dev)
-{
-	struct au1000_private *const aup = netdev_priv(dev);
-	int i;
-
-	au1000_hard_stop(dev);
-
-	writel(MAC_EN_CLOCK_ENABLE, aup->enable);
-	au_sync_delay(2);
-	writel(0, aup->enable);
-	au_sync_delay(2);
-
-	aup->tx_full = 0;
-	for (i = 0; i < NUM_RX_DMA; i++) {
-		/* reset control bits */
-		aup->rx_dma_ring[i]->buff_stat &= ~0xf;
-	}
-	for (i = 0; i < NUM_TX_DMA; i++) {
-		/* reset control bits */
-		aup->tx_dma_ring[i]->buff_stat &= ~0xf;
-	}
-
-	aup->mac_enabled = 0;
-
-}
-
-static void au1000_reset_mac(struct net_device *dev)
-{
-	struct au1000_private *const aup = netdev_priv(dev);
-	unsigned long flags;
-
-	netif_dbg(aup, hw, dev, "reset mac, aup %x\n",
-					(unsigned)aup);
-
-	spin_lock_irqsave(&aup->lock, flags);
-
-	au1000_reset_mac_unlocked(dev);
-
-	spin_unlock_irqrestore(&aup->lock, flags);
-}
-
-/*
- * Setup the receive and transmit "rings".  These pointers are the addresses
- * of the rx and tx MAC DMA registers so they are fixed by the hardware --
- * these are not descriptors sitting in memory.
- */
-static void
-au1000_setup_hw_rings(struct au1000_private *aup, u32 rx_base, u32 tx_base)
-{
-	int i;
-
-	for (i = 0; i < NUM_RX_DMA; i++) {
-		aup->rx_dma_ring[i] =
-			(struct rx_dma *)
-					(rx_base + sizeof(struct rx_dma)*i);
-	}
-	for (i = 0; i < NUM_TX_DMA; i++) {
-		aup->tx_dma_ring[i] =
-			(struct tx_dma *)
-					(tx_base + sizeof(struct tx_dma)*i);
-	}
-}
-
-/*
- * ethtool operations
- */
-
-static int au1000_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-
-	if (aup->phy_dev)
-		return phy_ethtool_gset(aup->phy_dev, cmd);
-
-	return -EINVAL;
-}
-
-static int au1000_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-
-	if (!capable(CAP_NET_ADMIN))
-		return -EPERM;
-
-	if (aup->phy_dev)
-		return phy_ethtool_sset(aup->phy_dev, cmd);
-
-	return -EINVAL;
-}
-
-static void
-au1000_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-
-	strcpy(info->driver, DRV_NAME);
-	strcpy(info->version, DRV_VERSION);
-	info->fw_version[0] = '\0';
-	sprintf(info->bus_info, "%s %d", DRV_NAME, aup->mac_id);
-	info->regdump_len = 0;
-}
-
-static void au1000_set_msglevel(struct net_device *dev, u32 value)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	aup->msg_enable = value;
-}
-
-static u32 au1000_get_msglevel(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	return aup->msg_enable;
-}
-
-static const struct ethtool_ops au1000_ethtool_ops = {
-	.get_settings = au1000_get_settings,
-	.set_settings = au1000_set_settings,
-	.get_drvinfo = au1000_get_drvinfo,
-	.get_link = ethtool_op_get_link,
-	.get_msglevel = au1000_get_msglevel,
-	.set_msglevel = au1000_set_msglevel,
-};
-
-
-/*
- * Initialize the interface.
- *
- * When the device powers up, the clocks are disabled and the
- * mac is in reset state.  When the interface is closed, we
- * do the same -- reset the device and disable the clocks to
- * conserve power. Thus, whenever au1000_init() is called,
- * the device should already be in reset state.
- */
-static int au1000_init(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	unsigned long flags;
-	int i;
-	u32 control;
-
-	netif_dbg(aup, hw, dev, "au1000_init\n");
-
-	/* bring the device out of reset */
-	au1000_enable_mac(dev, 1);
-
-	spin_lock_irqsave(&aup->lock, flags);
-
-	writel(0, &aup->mac->control);
-	aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2;
-	aup->tx_tail = aup->tx_head;
-	aup->rx_head = (aup->rx_dma_ring[0]->buff_stat & 0xC) >> 2;
-
-	writel(dev->dev_addr[5]<<8 | dev->dev_addr[4],
-					&aup->mac->mac_addr_high);
-	writel(dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 |
-		dev->dev_addr[1]<<8 | dev->dev_addr[0],
-					&aup->mac->mac_addr_low);
-
-
-	for (i = 0; i < NUM_RX_DMA; i++)
-		aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE;
-
-	au_sync();
-
-	control = MAC_RX_ENABLE | MAC_TX_ENABLE;
-#ifndef CONFIG_CPU_LITTLE_ENDIAN
-	control |= MAC_BIG_ENDIAN;
-#endif
-	if (aup->phy_dev) {
-		if (aup->phy_dev->link && (DUPLEX_FULL == aup->phy_dev->duplex))
-			control |= MAC_FULL_DUPLEX;
-		else
-			control |= MAC_DISABLE_RX_OWN;
-	} else { /* PHY-less op, assume full-duplex */
-		control |= MAC_FULL_DUPLEX;
-	}
-
-	writel(control, &aup->mac->control);
-	writel(0x8100, &aup->mac->vlan1_tag); /* activate vlan support */
-	au_sync();
-
-	spin_unlock_irqrestore(&aup->lock, flags);
-	return 0;
-}
-
-static inline void au1000_update_rx_stats(struct net_device *dev, u32 status)
-{
-	struct net_device_stats *ps = &dev->stats;
-
-	ps->rx_packets++;
-	if (status & RX_MCAST_FRAME)
-		ps->multicast++;
-
-	if (status & RX_ERROR) {
-		ps->rx_errors++;
-		if (status & RX_MISSED_FRAME)
-			ps->rx_missed_errors++;
-		if (status & (RX_OVERLEN | RX_RUNT | RX_LEN_ERROR))
-			ps->rx_length_errors++;
-		if (status & RX_CRC_ERROR)
-			ps->rx_crc_errors++;
-		if (status & RX_COLL)
-			ps->collisions++;
-	} else
-		ps->rx_bytes += status & RX_FRAME_LEN_MASK;
-
-}
-
-/*
- * Au1000 receive routine.
- */
-static int au1000_rx(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	struct sk_buff *skb;
-	struct rx_dma *prxd;
-	u32 buff_stat, status;
-	struct db_dest *pDB;
-	u32	frmlen;
-
-	netif_dbg(aup, rx_status, dev, "au1000_rx head %d\n", aup->rx_head);
-
-	prxd = aup->rx_dma_ring[aup->rx_head];
-	buff_stat = prxd->buff_stat;
-	while (buff_stat & RX_T_DONE)  {
-		status = prxd->status;
-		pDB = aup->rx_db_inuse[aup->rx_head];
-		au1000_update_rx_stats(dev, status);
-		if (!(status & RX_ERROR))  {
-
-			/* good frame */
-			frmlen = (status & RX_FRAME_LEN_MASK);
-			frmlen -= 4; /* Remove FCS */
-			skb = dev_alloc_skb(frmlen + 2);
-			if (skb == NULL) {
-				netdev_err(dev, "Memory squeeze, dropping packet.\n");
-				dev->stats.rx_dropped++;
-				continue;
-			}
-			skb_reserve(skb, 2);	/* 16 byte IP header align */
-			skb_copy_to_linear_data(skb,
-				(unsigned char *)pDB->vaddr, frmlen);
-			skb_put(skb, frmlen);
-			skb->protocol = eth_type_trans(skb, dev);
-			netif_rx(skb);	/* pass the packet to upper layers */
-		} else {
-			if (au1000_debug > 4) {
-				pr_err("rx_error(s):");
-				if (status & RX_MISSED_FRAME)
-					pr_cont(" miss");
-				if (status & RX_WDOG_TIMER)
-					pr_cont(" wdog");
-				if (status & RX_RUNT)
-					pr_cont(" runt");
-				if (status & RX_OVERLEN)
-					pr_cont(" overlen");
-				if (status & RX_COLL)
-					pr_cont(" coll");
-				if (status & RX_MII_ERROR)
-					pr_cont(" mii error");
-				if (status & RX_CRC_ERROR)
-					pr_cont(" crc error");
-				if (status & RX_LEN_ERROR)
-					pr_cont(" len error");
-				if (status & RX_U_CNTRL_FRAME)
-					pr_cont(" u control frame");
-				pr_cont("\n");
-			}
-		}
-		prxd->buff_stat = (u32)(pDB->dma_addr | RX_DMA_ENABLE);
-		aup->rx_head = (aup->rx_head + 1) & (NUM_RX_DMA - 1);
-		au_sync();
-
-		/* next descriptor */
-		prxd = aup->rx_dma_ring[aup->rx_head];
-		buff_stat = prxd->buff_stat;
-	}
-	return 0;
-}
-
-static void au1000_update_tx_stats(struct net_device *dev, u32 status)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	struct net_device_stats *ps = &dev->stats;
-
-	if (status & TX_FRAME_ABORTED) {
-		if (!aup->phy_dev || (DUPLEX_FULL == aup->phy_dev->duplex)) {
-			if (status & (TX_JAB_TIMEOUT | TX_UNDERRUN)) {
-				/* any other tx errors are only valid
-				 * in half duplex mode
-				 */
-				ps->tx_errors++;
-				ps->tx_aborted_errors++;
-			}
-		} else {
-			ps->tx_errors++;
-			ps->tx_aborted_errors++;
-			if (status & (TX_NO_CARRIER | TX_LOSS_CARRIER))
-				ps->tx_carrier_errors++;
-		}
-	}
-}
-
-/*
- * Called from the interrupt service routine to acknowledge
- * the TX DONE bits.  This is a must if the irq is setup as
- * edge triggered.
- */
-static void au1000_tx_ack(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	struct tx_dma *ptxd;
-
-	ptxd = aup->tx_dma_ring[aup->tx_tail];
-
-	while (ptxd->buff_stat & TX_T_DONE) {
-		au1000_update_tx_stats(dev, ptxd->status);
-		ptxd->buff_stat &= ~TX_T_DONE;
-		ptxd->len = 0;
-		au_sync();
-
-		aup->tx_tail = (aup->tx_tail + 1) & (NUM_TX_DMA - 1);
-		ptxd = aup->tx_dma_ring[aup->tx_tail];
-
-		if (aup->tx_full) {
-			aup->tx_full = 0;
-			netif_wake_queue(dev);
-		}
-	}
-}
-
-/*
- * Au1000 interrupt service routine.
- */
-static irqreturn_t au1000_interrupt(int irq, void *dev_id)
-{
-	struct net_device *dev = dev_id;
-
-	/* Handle RX interrupts first to minimize chance of overrun */
-
-	au1000_rx(dev);
-	au1000_tx_ack(dev);
-	return IRQ_RETVAL(1);
-}
-
-static int au1000_open(struct net_device *dev)
-{
-	int retval;
-	struct au1000_private *aup = netdev_priv(dev);
-
-	netif_dbg(aup, drv, dev, "open: dev=%p\n", dev);
-
-	retval = request_irq(dev->irq, au1000_interrupt, 0,
-					dev->name, dev);
-	if (retval) {
-		netdev_err(dev, "unable to get IRQ %d\n", dev->irq);
-		return retval;
-	}
-
-	retval = au1000_init(dev);
-	if (retval) {
-		netdev_err(dev, "error in au1000_init\n");
-		free_irq(dev->irq, dev);
-		return retval;
-	}
-
-	if (aup->phy_dev) {
-		/* cause the PHY state machine to schedule a link state check */
-		aup->phy_dev->state = PHY_CHANGELINK;
-		phy_start(aup->phy_dev);
-	}
-
-	netif_start_queue(dev);
-
-	netif_dbg(aup, drv, dev, "open: Initialization done.\n");
-
-	return 0;
-}
-
-static int au1000_close(struct net_device *dev)
-{
-	unsigned long flags;
-	struct au1000_private *const aup = netdev_priv(dev);
-
-	netif_dbg(aup, drv, dev, "close: dev=%p\n", dev);
-
-	if (aup->phy_dev)
-		phy_stop(aup->phy_dev);
-
-	spin_lock_irqsave(&aup->lock, flags);
-
-	au1000_reset_mac_unlocked(dev);
-
-	/* stop the device */
-	netif_stop_queue(dev);
-
-	/* disable the interrupt */
-	free_irq(dev->irq, dev);
-	spin_unlock_irqrestore(&aup->lock, flags);
-
-	return 0;
-}
-
-/*
- * Au1000 transmit routine.
- */
-static netdev_tx_t au1000_tx(struct sk_buff *skb, struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	struct net_device_stats *ps = &dev->stats;
-	struct tx_dma *ptxd;
-	u32 buff_stat;
-	struct db_dest *pDB;
-	int i;
-
-	netif_dbg(aup, tx_queued, dev, "tx: aup %x len=%d, data=%p, head %d\n",
-				(unsigned)aup, skb->len,
-				skb->data, aup->tx_head);
-
-	ptxd = aup->tx_dma_ring[aup->tx_head];
-	buff_stat = ptxd->buff_stat;
-	if (buff_stat & TX_DMA_ENABLE) {
-		/* We've wrapped around and the transmitter is still busy */
-		netif_stop_queue(dev);
-		aup->tx_full = 1;
-		return NETDEV_TX_BUSY;
-	} else if (buff_stat & TX_T_DONE) {
-		au1000_update_tx_stats(dev, ptxd->status);
-		ptxd->len = 0;
-	}
-
-	if (aup->tx_full) {
-		aup->tx_full = 0;
-		netif_wake_queue(dev);
-	}
-
-	pDB = aup->tx_db_inuse[aup->tx_head];
-	skb_copy_from_linear_data(skb, (void *)pDB->vaddr, skb->len);
-	if (skb->len < ETH_ZLEN) {
-		for (i = skb->len; i < ETH_ZLEN; i++)
-			((char *)pDB->vaddr)[i] = 0;
-
-		ptxd->len = ETH_ZLEN;
-	} else
-		ptxd->len = skb->len;
-
-	ps->tx_packets++;
-	ps->tx_bytes += ptxd->len;
-
-	ptxd->buff_stat = pDB->dma_addr | TX_DMA_ENABLE;
-	au_sync();
-	dev_kfree_skb(skb);
-	aup->tx_head = (aup->tx_head + 1) & (NUM_TX_DMA - 1);
-	return NETDEV_TX_OK;
-}
-
-/*
- * The Tx ring has been full longer than the watchdog timeout
- * value. The transmitter must be hung?
- */
-static void au1000_tx_timeout(struct net_device *dev)
-{
-	netdev_err(dev, "au1000_tx_timeout: dev=%p\n", dev);
-	au1000_reset_mac(dev);
-	au1000_init(dev);
-	dev->trans_start = jiffies; /* prevent tx timeout */
-	netif_wake_queue(dev);
-}
-
-static void au1000_multicast_list(struct net_device *dev)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-	u32 reg;
-
-	netif_dbg(aup, drv, dev, "%s: flags=%x\n", __func__, dev->flags);
-	reg = readl(&aup->mac->control);
-	if (dev->flags & IFF_PROMISC) {			/* Set promiscuous. */
-		reg |= MAC_PROMISCUOUS;
-	} else if ((dev->flags & IFF_ALLMULTI)  ||
-			   netdev_mc_count(dev) > MULTICAST_FILTER_LIMIT) {
-		reg |= MAC_PASS_ALL_MULTI;
-		reg &= ~MAC_PROMISCUOUS;
-		netdev_info(dev, "Pass all multicast\n");
-	} else {
-		struct netdev_hw_addr *ha;
-		u32 mc_filter[2];	/* Multicast hash filter */
-
-		mc_filter[1] = mc_filter[0] = 0;
-		netdev_for_each_mc_addr(ha, dev)
-			set_bit(ether_crc(ETH_ALEN, ha->addr)>>26,
-					(long *)mc_filter);
-		writel(mc_filter[1], &aup->mac->multi_hash_high);
-		writel(mc_filter[0], &aup->mac->multi_hash_low);
-		reg &= ~MAC_PROMISCUOUS;
-		reg |= MAC_HASH_MODE;
-	}
-	writel(reg, &aup->mac->control);
-}
-
-static int au1000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
-	struct au1000_private *aup = netdev_priv(dev);
-
-	if (!netif_running(dev))
-		return -EINVAL;
-
-	if (!aup->phy_dev)
-		return -EINVAL; /* PHY not controllable */
-
-	return phy_mii_ioctl(aup->phy_dev, rq, cmd);
-}
-
-static const struct net_device_ops au1000_netdev_ops = {
-	.ndo_open		= au1000_open,
-	.ndo_stop		= au1000_close,
-	.ndo_start_xmit		= au1000_tx,
-	.ndo_set_multicast_list	= au1000_multicast_list,
-	.ndo_do_ioctl		= au1000_ioctl,
-	.ndo_tx_timeout		= au1000_tx_timeout,
-	.ndo_set_mac_address	= eth_mac_addr,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_change_mtu		= eth_change_mtu,
-};
-
-static int __devinit au1000_probe(struct platform_device *pdev)
-{
-	static unsigned version_printed;
-	struct au1000_private *aup = NULL;
-	struct au1000_eth_platform_data *pd;
-	struct net_device *dev = NULL;
-	struct db_dest *pDB, *pDBfree;
-	int irq, i, err = 0;
-	struct resource *base, *macen;
-
-	base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!base) {
-		dev_err(&pdev->dev, "failed to retrieve base register\n");
-		err = -ENODEV;
-		goto out;
-	}
-
-	macen = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!macen) {
-		dev_err(&pdev->dev, "failed to retrieve MAC Enable register\n");
-		err = -ENODEV;
-		goto out;
-	}
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(&pdev->dev, "failed to retrieve IRQ\n");
-		err = -ENODEV;
-		goto out;
-	}
-
-	if (!request_mem_region(base->start, resource_size(base),
-							pdev->name)) {
-		dev_err(&pdev->dev, "failed to request memory region for base registers\n");
-		err = -ENXIO;
-		goto out;
-	}
-
-	if (!request_mem_region(macen->start, resource_size(macen),
-							pdev->name)) {
-		dev_err(&pdev->dev, "failed to request memory region for MAC enable register\n");
-		err = -ENXIO;
-		goto err_request;
-	}
-
-	dev = alloc_etherdev(sizeof(struct au1000_private));
-	if (!dev) {
-		dev_err(&pdev->dev, "alloc_etherdev failed\n");
-		err = -ENOMEM;
-		goto err_alloc;
-	}
-
-	SET_NETDEV_DEV(dev, &pdev->dev);
-	platform_set_drvdata(pdev, dev);
-	aup = netdev_priv(dev);
-
-	spin_lock_init(&aup->lock);
-	aup->msg_enable = (au1000_debug < 4 ?
-				AU1000_DEF_MSG_ENABLE : au1000_debug);
-
-	/* Allocate the data buffers
-	 * Snooping works fine with eth on all au1xxx
-	 */
-	aup->vaddr = (u32)dma_alloc_noncoherent(NULL, MAX_BUF_SIZE *
-						(NUM_TX_BUFFS + NUM_RX_BUFFS),
-						&aup->dma_addr,	0);
-	if (!aup->vaddr) {
-		dev_err(&pdev->dev, "failed to allocate data buffers\n");
-		err = -ENOMEM;
-		goto err_vaddr;
-	}
-
-	/* aup->mac is the base address of the MAC's registers */
-	aup->mac = (struct mac_reg *)
-			ioremap_nocache(base->start, resource_size(base));
-	if (!aup->mac) {
-		dev_err(&pdev->dev, "failed to ioremap MAC registers\n");
-		err = -ENXIO;
-		goto err_remap1;
-	}
-
-	/* Setup some variables for quick register address access */
-	aup->enable = (u32 *)ioremap_nocache(macen->start,
-						resource_size(macen));
-	if (!aup->enable) {
-		dev_err(&pdev->dev, "failed to ioremap MAC enable register\n");
-		err = -ENXIO;
-		goto err_remap2;
-	}
-	aup->mac_id = pdev->id;
-
-	if (pdev->id == 0)
-		au1000_setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
-	else if (pdev->id == 1)
-		au1000_setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
-
-	/* set a random MAC now in case platform_data doesn't provide one */
-	random_ether_addr(dev->dev_addr);
-
-	writel(0, aup->enable);
-	aup->mac_enabled = 0;
-
-	pd = pdev->dev.platform_data;
-	if (!pd) {
-		dev_info(&pdev->dev, "no platform_data passed,"
-					" PHY search on MAC0\n");
-		aup->phy1_search_mac0 = 1;
-	} else {
-		if (is_valid_ether_addr(pd->mac))
-			memcpy(dev->dev_addr, pd->mac, 6);
-
-		aup->phy_static_config = pd->phy_static_config;
-		aup->phy_search_highest_addr = pd->phy_search_highest_addr;
-		aup->phy1_search_mac0 = pd->phy1_search_mac0;
-		aup->phy_addr = pd->phy_addr;
-		aup->phy_busid = pd->phy_busid;
-		aup->phy_irq = pd->phy_irq;
-	}
-
-	if (aup->phy_busid && aup->phy_busid > 0) {
-		dev_err(&pdev->dev, "MAC0-associated PHY attached 2nd MACs MII bus not supported yet\n");
-		err = -ENODEV;
-		goto err_mdiobus_alloc;
-	}
-
-	aup->mii_bus = mdiobus_alloc();
-	if (aup->mii_bus == NULL) {
-		dev_err(&pdev->dev, "failed to allocate mdiobus structure\n");
-		err = -ENOMEM;
-		goto err_mdiobus_alloc;
-	}
-
-	aup->mii_bus->priv = dev;
-	aup->mii_bus->read = au1000_mdiobus_read;
-	aup->mii_bus->write = au1000_mdiobus_write;
-	aup->mii_bus->reset = au1000_mdiobus_reset;
-	aup->mii_bus->name = "au1000_eth_mii";
-	snprintf(aup->mii_bus->id, MII_BUS_ID_SIZE, "%x", aup->mac_id);
-	aup->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
-	if (aup->mii_bus->irq == NULL)
-		goto err_out;
-
-	for (i = 0; i < PHY_MAX_ADDR; ++i)
-		aup->mii_bus->irq[i] = PHY_POLL;
-	/* if known, set corresponding PHY IRQs */
-	if (aup->phy_static_config)
-		if (aup->phy_irq && aup->phy_busid == aup->mac_id)
-			aup->mii_bus->irq[aup->phy_addr] = aup->phy_irq;
-
-	err = mdiobus_register(aup->mii_bus);
-	if (err) {
-		dev_err(&pdev->dev, "failed to register MDIO bus\n");
-		goto err_mdiobus_reg;
-	}
-
-	if (au1000_mii_probe(dev) != 0)
-		goto err_out;
-
-	pDBfree = NULL;
-	/* setup the data buffer descriptors and attach a buffer to each one */
-	pDB = aup->db;
-	for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
-		pDB->pnext = pDBfree;
-		pDBfree = pDB;
-		pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
-		pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
-		pDB++;
-	}
-	aup->pDBfree = pDBfree;
-
-	for (i = 0; i < NUM_RX_DMA; i++) {
-		pDB = au1000_GetFreeDB(aup);
-		if (!pDB)
-			goto err_out;
-
-		aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
-		aup->rx_db_inuse[i] = pDB;
-	}
-	for (i = 0; i < NUM_TX_DMA; i++) {
-		pDB = au1000_GetFreeDB(aup);
-		if (!pDB)
-			goto err_out;
-
-		aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
-		aup->tx_dma_ring[i]->len = 0;
-		aup->tx_db_inuse[i] = pDB;
-	}
-
-	dev->base_addr = base->start;
-	dev->irq = irq;
-	dev->netdev_ops = &au1000_netdev_ops;
-	SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
-	dev->watchdog_timeo = ETH_TX_TIMEOUT;
-
-	/*
-	 * The boot code uses the ethernet controller, so reset it to start
-	 * fresh.  au1000_init() expects that the device is in reset state.
-	 */
-	au1000_reset_mac(dev);
-
-	err = register_netdev(dev);
-	if (err) {
-		netdev_err(dev, "Cannot register net device, aborting.\n");
-		goto err_out;
-	}
-
-	netdev_info(dev, "Au1xx0 Ethernet found at 0x%lx, irq %d\n",
-			(unsigned long)base->start, irq);
-	if (version_printed++ == 0)
-		pr_info("%s version %s %s\n",
-					DRV_NAME, DRV_VERSION, DRV_AUTHOR);
-
-	return 0;
-
-err_out:
-	if (aup->mii_bus != NULL)
-		mdiobus_unregister(aup->mii_bus);
-
-	/* here we should have a valid dev plus aup-> register addresses
-	 * so we can reset the mac properly.
-	 */
-	au1000_reset_mac(dev);
-
-	for (i = 0; i < NUM_RX_DMA; i++) {
-		if (aup->rx_db_inuse[i])
-			au1000_ReleaseDB(aup, aup->rx_db_inuse[i]);
-	}
-	for (i = 0; i < NUM_TX_DMA; i++) {
-		if (aup->tx_db_inuse[i])
-			au1000_ReleaseDB(aup, aup->tx_db_inuse[i]);
-	}
-err_mdiobus_reg:
-	mdiobus_free(aup->mii_bus);
-err_mdiobus_alloc:
-	iounmap(aup->enable);
-err_remap2:
-	iounmap(aup->mac);
-err_remap1:
-	dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
-			     (void *)aup->vaddr, aup->dma_addr);
-err_vaddr:
-	free_netdev(dev);
-err_alloc:
-	release_mem_region(macen->start, resource_size(macen));
-err_request:
-	release_mem_region(base->start, resource_size(base));
-out:
-	return err;
-}
-
-static int __devexit au1000_remove(struct platform_device *pdev)
-{
-	struct net_device *dev = platform_get_drvdata(pdev);
-	struct au1000_private *aup = netdev_priv(dev);
-	int i;
-	struct resource *base, *macen;
-
-	platform_set_drvdata(pdev, NULL);
-
-	unregister_netdev(dev);
-	mdiobus_unregister(aup->mii_bus);
-	mdiobus_free(aup->mii_bus);
-
-	for (i = 0; i < NUM_RX_DMA; i++)
-		if (aup->rx_db_inuse[i])
-			au1000_ReleaseDB(aup, aup->rx_db_inuse[i]);
-
-	for (i = 0; i < NUM_TX_DMA; i++)
-		if (aup->tx_db_inuse[i])
-			au1000_ReleaseDB(aup, aup->tx_db_inuse[i]);
-
-	dma_free_noncoherent(NULL, MAX_BUF_SIZE *
-			(NUM_TX_BUFFS + NUM_RX_BUFFS),
-			(void *)aup->vaddr, aup->dma_addr);
-
-	iounmap(aup->mac);
-	iounmap(aup->enable);
-
-	base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	release_mem_region(base->start, resource_size(base));
-
-	macen = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	release_mem_region(macen->start, resource_size(macen));
-
-	free_netdev(dev);
-
-	return 0;
-}
-
-static struct platform_driver au1000_eth_driver = {
-	.probe  = au1000_probe,
-	.remove = __devexit_p(au1000_remove),
-	.driver = {
-		.name   = "au1000-eth",
-		.owner  = THIS_MODULE,
-	},
-};
-MODULE_ALIAS("platform:au1000-eth");
-
-
-static int __init au1000_init_module(void)
-{
-	return platform_driver_register(&au1000_eth_driver);
-}
-
-static void __exit au1000_exit_module(void)
-{
-	platform_driver_unregister(&au1000_eth_driver);
-}
-
-module_init(au1000_init_module);
-module_exit(au1000_exit_module);