SMSC LAN911x and LAN921x vendor driver
Steve Glendinning [Wed, 5 Nov 2008 00:35:37 +0000 (00:35 +0000)]
Attached is a driver for SMSC's LAN911x and LAN921x families of embedded
ethernet controllers.

There is an existing smc911x driver in the tree; this is intended to
replace it.  Dustin McIntire (the author of the smc911x driver) has
expressed his support for switching to this driver.

This driver contains workarounds for all known hardware issues, and has
been tested on all flavours of the chip on multiple architectures.

This driver now uses phylib, so this patch also adds support for the
device's internal phy

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Bahadir Balban <Bahadir.Balban@arm.com>
Signed-off-by: Dustin Mcintire <dustin@sensoria.com>
Signed-off-by: Bill Gatliff <bgat@billgatliff.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

MAINTAINERS
drivers/net/Kconfig
drivers/net/Makefile
drivers/net/phy/smsc.c
drivers/net/smsc911x.c [new file with mode: 0644]
drivers/net/smsc911x.h [new file with mode: 0644]
include/linux/smsc911x.h [new file with mode: 0644]

index 129117f..5d951f3 100644 (file)
@@ -3853,6 +3853,12 @@ M:       mhoffman@lightlink.com
 L:     lm-sensors@lm-sensors.org
 S:     Maintained
 
+SMSC911x ETHERNET DRIVER
+P:     Steve Glendinning
+M:     steve.glendinning@smsc.com
+L:     netdev@vger.kernel.org
+S:     Supported
+
 SMX UIO Interface
 P:     Ben Nizette
 M:     bn@niasdigital.com
index f1d0a13..74a18a7 100644 (file)
@@ -979,6 +979,20 @@ config SMC911X
          called smc911x.  If you want to compile it as a module, say M 
          here and read <file:Documentation/kbuild/modules.txt>
 
+config SMSC911X
+       tristate "SMSC LAN911x/LAN921x families embedded ethernet support"
+       depends on ARM || SUPERH
+       select CRC32
+       select MII
+       select PHYLIB
+       ---help---
+         Say Y here if you want support for SMSC LAN911x and LAN921x families
+         of ethernet controllers.
+
+         To compile this driver as a module, choose M here and read
+         <file:Documentation/networking/net-modules.txt>. The module
+         will be called smsc911x.
+
 config NET_VENDOR_RACAL
        bool "Racal-Interlan (Micom) NI cards"
        depends on ISA
index 657c47b..e06829a 100644 (file)
@@ -219,6 +219,7 @@ obj-$(CONFIG_S2IO) += s2io.o
 obj-$(CONFIG_MYRI10GE) += myri10ge/
 obj-$(CONFIG_SMC91X) += smc91x.o
 obj-$(CONFIG_SMC911X) += smc911x.o
+obj-$(CONFIG_SMSC911X) += smsc911x.o
 obj-$(CONFIG_BFIN_MAC) += bfin_mac.o
 obj-$(CONFIG_DM9000) += dm9000.o
 obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o
index 73baa7a..c05d38d 100644 (file)
@@ -126,6 +126,27 @@ static struct phy_driver lan8700_driver = {
        .driver         = { .owner = THIS_MODULE, }
 };
 
+static struct phy_driver lan911x_int_driver = {
+       .phy_id         = 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
+       .phy_id_mask    = 0xfffffff0,
+       .name           = "SMSC LAN911x Internal PHY",
+
+       .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
+                               | SUPPORTED_Asym_Pause),
+       .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
+
+       /* basic functions */
+       .config_aneg    = genphy_config_aneg,
+       .read_status    = genphy_read_status,
+       .config_init    = smsc_phy_config_init,
+
+       /* IRQ related */
+       .ack_interrupt  = smsc_phy_ack_interrupt,
+       .config_intr    = smsc_phy_config_intr,
+
+       .driver         = { .owner = THIS_MODULE, }
+};
+
 static int __init smsc_init(void)
 {
        int ret;
@@ -142,8 +163,14 @@ static int __init smsc_init(void)
        if (ret)
                goto err3;
 
+       ret = phy_driver_register (&lan911x_int_driver);
+       if (ret)
+               goto err4;
+
        return 0;
 
+err4:
+       phy_driver_unregister (&lan8700_driver);
 err3:
        phy_driver_unregister (&lan8187_driver);
 err2:
@@ -154,6 +181,7 @@ err1:
 
 static void __exit smsc_exit(void)
 {
+       phy_driver_unregister (&lan911x_int_driver);
        phy_driver_unregister (&lan8700_driver);
        phy_driver_unregister (&lan8187_driver);
        phy_driver_unregister (&lan83c185_driver);
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
new file mode 100644 (file)
index 0000000..fe51788
--- /dev/null
@@ -0,0 +1,2091 @@
+/***************************************************************************
+ *
+ * Copyright (C) 2004-2008 SMSC
+ * Copyright (C) 2005-2008 ARM
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ ***************************************************************************
+ * Rewritten, heavily based on smsc911x simple driver by SMSC.
+ * Partly uses io macros from smc91x.c by Nicolas Pitre
+ *
+ * Supported devices:
+ *   LAN9115, LAN9116, LAN9117, LAN9118
+ *   LAN9215, LAN9216, LAN9217, LAN9218
+ *   LAN9210, LAN9211
+ *   LAN9220, LAN9221
+ *
+ */
+
+#include <linux/crc32.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/version.h>
+#include <linux/bug.h>
+#include <linux/bitops.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/phy.h>
+#include <linux/smsc911x.h>
+#include "smsc911x.h"
+
+#define SMSC_CHIPNAME          "smsc911x"
+#define SMSC_MDIONAME          "smsc911x-mdio"
+#define SMSC_DRV_VERSION       "2008-10-21"
+
+MODULE_LICENSE("GPL");
+MODULE_VERSION(SMSC_DRV_VERSION);
+
+#if USE_DEBUG > 0
+static int debug = 16;
+#else
+static int debug = 3;
+#endif
+
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+struct smsc911x_data {
+       void __iomem *ioaddr;
+
+       unsigned int idrev;
+
+       /* used to decide which workarounds apply */
+       unsigned int generation;
+
+       /* device configuration (copied from platform_data during probe) */
+       unsigned int irq_polarity;
+       unsigned int irq_type;
+       phy_interface_t phy_interface;
+
+       /* This needs to be acquired before calling any of below:
+        * smsc911x_mac_read(), smsc911x_mac_write()
+        */
+       spinlock_t mac_lock;
+
+#if (!SMSC_CAN_USE_32BIT)
+       /* spinlock to ensure 16-bit accesses are serialised */
+       spinlock_t dev_lock;
+#endif
+
+       struct phy_device *phy_dev;
+       struct mii_bus *mii_bus;
+       int phy_irq[PHY_MAX_ADDR];
+       unsigned int using_extphy;
+       int last_duplex;
+       int last_carrier;
+
+       u32 msg_enable;
+       unsigned int gpio_setting;
+       unsigned int gpio_orig_setting;
+       struct net_device *dev;
+       struct napi_struct napi;
+
+       unsigned int software_irq_signal;
+
+#ifdef USE_PHY_WORK_AROUND
+#define MIN_PACKET_SIZE (64)
+       char loopback_tx_pkt[MIN_PACKET_SIZE];
+       char loopback_rx_pkt[MIN_PACKET_SIZE];
+       unsigned int resetcount;
+#endif
+
+       /* Members for Multicast filter workaround */
+       unsigned int multicast_update_pending;
+       unsigned int set_bits_mask;
+       unsigned int clear_bits_mask;
+       unsigned int hashhi;
+       unsigned int hashlo;
+};
+
+#if SMSC_CAN_USE_32BIT
+
+static inline u32 smsc911x_reg_read(struct smsc911x_data *pdata, u32 reg)
+{
+       return readl(pdata->ioaddr + reg);
+}
+
+static inline void smsc911x_reg_write(struct smsc911x_data *pdata, u32 reg,
+                                     u32 val)
+{
+       writel(val, pdata->ioaddr + reg);
+}
+
+/* Writes a packet to the TX_DATA_FIFO */
+static inline void
+smsc911x_tx_writefifo(struct smsc911x_data *pdata, unsigned int *buf,
+                     unsigned int wordcount)
+{
+       writesl(pdata->ioaddr + TX_DATA_FIFO, buf, wordcount);
+}
+
+/* Reads a packet out of the RX_DATA_FIFO */
+static inline void
+smsc911x_rx_readfifo(struct smsc911x_data *pdata, unsigned int *buf,
+                    unsigned int wordcount)
+{
+       readsl(pdata->ioaddr + RX_DATA_FIFO, buf, wordcount);
+}
+
+#else                          /* SMSC_CAN_USE_32BIT */
+
+/* These 16-bit access functions are significantly slower, due to the locking
+ * necessary.  If your bus hardware can be configured to do this for you
+ * (in response to a single 32-bit operation from software), you should use
+ * the 32-bit access functions instead. */
+
+static inline u32 smsc911x_reg_read(struct smsc911x_data *pdata, u32 reg)
+{
+       unsigned long flags;
+       u32 data;
+
+       /* these two 16-bit reads must be performed consecutively, so must
+        * not be interrupted by our own ISR (which would start another
+        * read operation) */
+       spin_lock_irqsave(&pdata->dev_lock, flags);
+       data = ((readw(pdata->ioaddr + reg) & 0xFFFF) |
+               ((readw(pdata->ioaddr + reg + 2) & 0xFFFF) << 16));
+       spin_unlock_irqrestore(&pdata->dev_lock, flags);
+
+       return data;
+}
+
+static inline void smsc911x_reg_write(struct smsc911x_data *pdata, u32 reg,
+                                     u32 val)
+{
+       unsigned long flags;
+
+       /* these two 16-bit writes must be performed consecutively, so must
+        * not be interrupted by our own ISR (which would start another
+        * read operation) */
+       spin_lock_irqsave(&pdata->dev_lock, flags);
+       writew(val & 0xFFFF, pdata->ioaddr + reg);
+       writew((val >> 16) & 0xFFFF, pdata->ioaddr + reg + 2);
+       spin_unlock_irqrestore(&pdata->dev_lock, flags);
+}
+
+/* Writes a packet to the TX_DATA_FIFO */
+static inline void
+smsc911x_tx_writefifo(struct smsc911x_data *pdata, unsigned int *buf,
+                     unsigned int wordcount)
+{
+       while (wordcount--)
+               smsc911x_reg_write(pdata, TX_DATA_FIFO, *buf++);
+}
+
+/* Reads a packet out of the RX_DATA_FIFO */
+static inline void
+smsc911x_rx_readfifo(struct smsc911x_data *pdata, unsigned int *buf,
+                    unsigned int wordcount)
+{
+       while (wordcount--)
+               *buf++ = smsc911x_reg_read(pdata, RX_DATA_FIFO);
+}
+
+#endif                         /* SMSC_CAN_USE_32BIT */
+
+/* waits for MAC not busy, with timeout.  Only called by smsc911x_mac_read
+ * and smsc911x_mac_write, so assumes mac_lock is held */
+static int smsc911x_mac_complete(struct smsc911x_data *pdata)
+{
+       int i;
+       u32 val;
+
+       SMSC_ASSERT_MAC_LOCK(pdata);
+
+       for (i = 0; i < 40; i++) {
+               val = smsc911x_reg_read(pdata, MAC_CSR_CMD);
+               if (!(val & MAC_CSR_CMD_CSR_BUSY_))
+                       return 0;
+       }
+       SMSC_WARNING(HW, "Timed out waiting for MAC not BUSY. "
+               "MAC_CSR_CMD: 0x%08X", val);
+       return -EIO;
+}
+
+/* Fetches a MAC register value. Assumes mac_lock is acquired */
+static u32 smsc911x_mac_read(struct smsc911x_data *pdata, unsigned int offset)
+{
+       unsigned int temp;
+
+       SMSC_ASSERT_MAC_LOCK(pdata);
+
+       temp = smsc911x_reg_read(pdata, MAC_CSR_CMD);
+       if (unlikely(temp & MAC_CSR_CMD_CSR_BUSY_)) {
+               SMSC_WARNING(HW, "MAC busy at entry");
+               return 0xFFFFFFFF;
+       }
+
+       /* Send the MAC cmd */
+       smsc911x_reg_write(pdata, MAC_CSR_CMD, ((offset & 0xFF) |
+               MAC_CSR_CMD_CSR_BUSY_ | MAC_CSR_CMD_R_NOT_W_));
+
+       /* Workaround for hardware read-after-write restriction */
+       temp = smsc911x_reg_read(pdata, BYTE_TEST);
+
+       /* Wait for the read to complete */
+       if (likely(smsc911x_mac_complete(pdata) == 0))
+               return smsc911x_reg_read(pdata, MAC_CSR_DATA);
+
+       SMSC_WARNING(HW, "MAC busy after read");
+       return 0xFFFFFFFF;
+}
+
+/* Set a mac register, mac_lock must be acquired before calling */
+static void smsc911x_mac_write(struct smsc911x_data *pdata,
+                              unsigned int offset, u32 val)
+{
+       unsigned int temp;
+
+       SMSC_ASSERT_MAC_LOCK(pdata);
+
+       temp = smsc911x_reg_read(pdata, MAC_CSR_CMD);
+       if (unlikely(temp & MAC_CSR_CMD_CSR_BUSY_)) {
+               SMSC_WARNING(HW,
+                       "smsc911x_mac_write failed, MAC busy at entry");
+               return;
+       }
+
+       /* Send data to write */
+       smsc911x_reg_write(pdata, MAC_CSR_DATA, val);
+
+       /* Write the actual data */
+       smsc911x_reg_write(pdata, MAC_CSR_CMD, ((offset & 0xFF) |
+               MAC_CSR_CMD_CSR_BUSY_));
+
+       /* Workaround for hardware read-after-write restriction */
+       temp = smsc911x_reg_read(pdata, BYTE_TEST);
+
+       /* Wait for the write to complete */
+       if (likely(smsc911x_mac_complete(pdata) == 0))
+               return;
+
+       SMSC_WARNING(HW,
+               "smsc911x_mac_write failed, MAC busy after write");
+}
+
+/* Get a phy register */
+static int smsc911x_mii_read(struct mii_bus *bus, int phyaddr, int regidx)
+{
+       struct smsc911x_data *pdata = (struct smsc911x_data *)bus->priv;
+       unsigned long flags;
+       unsigned int addr;
+       int i, reg;
+
+       spin_lock_irqsave(&pdata->mac_lock, flags);
+
+       /* Confirm MII not busy */
+       if (unlikely(smsc911x_mac_read(pdata, MII_ACC) & MII_ACC_MII_BUSY_)) {
+               SMSC_WARNING(HW,
+                       "MII is busy in smsc911x_mii_read???");
+               reg = -EIO;
+               goto out;
+       }
+
+       /* Set the address, index & direction (read from PHY) */
+       addr = ((phyaddr & 0x1F) << 11) | ((regidx & 0x1F) << 6);
+       smsc911x_mac_write(pdata, MII_ACC, addr);
+
+       /* Wait for read to complete w/ timeout */
+       for (i = 0; i < 100; i++)
+               if (!(smsc911x_mac_read(pdata, MII_ACC) & MII_ACC_MII_BUSY_)) {
+                       reg = smsc911x_mac_read(pdata, MII_DATA);
+                       goto out;
+               }
+
+       SMSC_WARNING(HW, "Timed out waiting for MII write to finish");
+       reg = -EIO;
+
+out:
+       spin_unlock_irqrestore(&pdata->mac_lock, flags);
+       return reg;
+}
+
+/* Set a phy register */
+static int smsc911x_mii_write(struct mii_bus *bus, int phyaddr, int regidx,
+                          u16 val)
+{
+       struct smsc911x_data *pdata = (struct smsc911x_data *)bus->priv;
+       unsigned long flags;
+       unsigned int addr;
+       int i, reg;
+
+       spin_lock_irqsave(&pdata->mac_lock, flags);
+
+       /* Confirm MII not busy */
+       if (unlikely(smsc911x_mac_read(pdata, MII_ACC) & MII_ACC_MII_BUSY_)) {
+               SMSC_WARNING(HW,
+                       "MII is busy in smsc911x_mii_write???");
+               reg = -EIO;
+               goto out;
+       }
+
+       /* Put the data to write in the MAC */
+       smsc911x_mac_write(pdata, MII_DATA, val);
+
+       /* Set the address, index & direction (write to PHY) */
+       addr = ((phyaddr & 0x1F) << 11) | ((regidx & 0x1F) << 6) |
+               MII_ACC_MII_WRITE_;
+       smsc911x_mac_write(pdata, MII_ACC, addr);
+
+       /* Wait for write to complete w/ timeout */
+       for (i = 0; i < 100; i++)
+               if (!(smsc911x_mac_read(pdata, MII_ACC) & MII_ACC_MII_BUSY_)) {
+                       reg = 0;
+                       goto out;
+               }
+
+       SMSC_WARNING(HW, "Timed out waiting for MII write to finish");
+       reg = -EIO;
+
+out:
+       spin_unlock_irqrestore(&pdata->mac_lock, flags);
+       return reg;
+}
+
+/* Autodetects and initialises external phy for SMSC9115 and SMSC9117 flavors.
+ * If something goes wrong, returns -ENODEV to revert back to internal phy.
+ * Performed at initialisation only, so interrupts are enabled */
+static int smsc911x_phy_initialise_external(struct smsc911x_data *pdata)
+{
+       unsigned int hwcfg = smsc911x_reg_read(pdata, HW_CFG);
+
+       /* External phy is requested, supported, and detected */
+       if (hwcfg & HW_CFG_EXT_PHY_DET_) {
+
+               /* Switch to external phy. Assuming tx and rx are stopped
+                * because smsc911x_phy_initialise is called before
+                * smsc911x_rx_initialise and tx_initialise. */
+
+               /* Disable phy clocks to the MAC */
+               hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+               hwcfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_;
+               smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+               udelay(10);     /* Enough time for clocks to stop */
+
+               /* Switch to external phy */
+               hwcfg |= HW_CFG_EXT_PHY_EN_;
+               smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+
+               /* Enable phy clocks to the MAC */
+               hwcfg &= (~HW_CFG_PHY_CLK_SEL_);
+               hwcfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_;
+               smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+               udelay(10);     /* Enough time for clocks to restart */
+
+               hwcfg |= HW_CFG_SMI_SEL_;
+               smsc911x_reg_write(pdata, HW_CFG, hwcfg);
+
+               SMSC_TRACE(HW, "Successfully switched to external PHY");
+               pdata->using_extphy = 1;
+       } else {
+               SMSC_WARNING(HW, "No external PHY detected, "
+                       "Using internal PHY instead.");
+               /* Use internal phy */
+               return -ENODEV;
+       }
+       return 0;
+}
+
+/* Fetches a tx status out of the status fifo */
+static unsigned int smsc911x_tx_get_txstatus(struct smsc911x_data *pdata)
+{
+       unsigned int result =
+           smsc911x_reg_read(pdata, TX_FIFO_INF) & TX_FIFO_INF_TSUSED_;
+
+       if (result != 0)
+               result = smsc911x_reg_read(pdata, TX_STATUS_FIFO);
+
+       return result;
+}
+
+/* Fetches the next rx status */
+static unsigned int smsc911x_rx_get_rxstatus(struct smsc911x_data *pdata)
+{
+       unsigned int result =
+           smsc911x_reg_read(pdata, RX_FIFO_INF) & RX_FIFO_INF_RXSUSED_;
+
+       if (result != 0)
+               result = smsc911x_reg_read(pdata, RX_STATUS_FIFO);
+
+       return result;
+}
+
+#ifdef USE_PHY_WORK_AROUND
+static int smsc911x_phy_check_loopbackpkt(struct smsc911x_data *pdata)
+{
+       unsigned int tries;
+       u32 wrsz;
+       u32 rdsz;
+       ulong bufp;
+
+       for (tries = 0; tries < 10; tries++) {
+               unsigned int txcmd_a;
+               unsigned int txcmd_b;
+               unsigned int status;
+               unsigned int pktlength;
+               unsigned int i;
+
+               /* Zero-out rx packet memory */
+               memset(pdata->loopback_rx_pkt, 0, MIN_PACKET_SIZE);
+
+               /* Write tx packet to 118 */
+               txcmd_a = (u32)((ulong)pdata->loopback_tx_pkt & 0x03) << 16;
+               txcmd_a |= TX_CMD_A_FIRST_SEG_ | TX_CMD_A_LAST_SEG_;
+               txcmd_a |= MIN_PACKET_SIZE;
+
+               txcmd_b = MIN_PACKET_SIZE << 16 | MIN_PACKET_SIZE;
+
+               smsc911x_reg_write(pdata, TX_DATA_FIFO, txcmd_a);
+               smsc911x_reg_write(pdata, TX_DATA_FIFO, txcmd_b);
+
+               bufp = (ulong)pdata->loopback_tx_pkt & (~0x3);
+               wrsz = MIN_PACKET_SIZE + 3;
+               wrsz += (u32)((ulong)pdata->loopback_tx_pkt & 0x3);
+               wrsz >>= 2;
+
+               smsc911x_tx_writefifo(pdata, (unsigned int *)bufp, wrsz);
+
+               /* Wait till transmit is done */
+               i = 60;
+               do {
+                       udelay(5);
+                       status = smsc911x_tx_get_txstatus(pdata);
+               } while ((i--) && (!status));
+
+               if (!status) {
+                       SMSC_WARNING(HW, "Failed to transmit "
+                               "during loopback test");
+                       continue;
+               }
+               if (status & TX_STS_ES_) {
+                       SMSC_WARNING(HW, "Transmit encountered "
+                               "errors during loopback test");
+                       continue;
+               }
+
+               /* Wait till receive is done */
+               i = 60;
+               do {
+                       udelay(5);
+                       status = smsc911x_rx_get_rxstatus(pdata);
+               } while ((i--) && (!status));
+
+               if (!status) {
+                       SMSC_WARNING(HW,
+                               "Failed to receive during loopback test");
+                       continue;
+               }
+               if (status & RX_STS_ES_) {
+                       SMSC_WARNING(HW, "Receive encountered "
+                               "errors during loopback test");
+                       continue;
+               }
+
+               pktlength = ((status & 0x3FFF0000UL) >> 16);
+               bufp = (ulong)pdata->loopback_rx_pkt;
+               rdsz = pktlength + 3;
+               rdsz += (u32)((ulong)pdata->loopback_rx_pkt & 0x3);
+               rdsz >>= 2;
+
+               smsc911x_rx_readfifo(pdata, (unsigned int *)bufp, rdsz);
+
+               if (pktlength != (MIN_PACKET_SIZE + 4)) {
+                       SMSC_WARNING(HW, "Unexpected packet size "
+                               "during loop back test, size=%d, will retry",
+                               pktlength);
+               } else {
+                       unsigned int j;
+                       int mismatch = 0;
+                       for (j = 0; j < MIN_PACKET_SIZE; j++) {
+                               if (pdata->loopback_tx_pkt[j]
+                                   != pdata->loopback_rx_pkt[j]) {
+                                       mismatch = 1;
+                                       break;
+                               }
+                       }
+                       if (!mismatch) {
+                               SMSC_TRACE(HW, "Successfully verified "
+                                          "loopback packet");
+                               return 0;
+                       } else {
+                               SMSC_WARNING(HW, "Data mismatch "
+                                       "during loop back test, will retry");
+                       }
+               }
+       }
+
+       return -EIO;
+}
+
+static int smsc911x_phy_reset(struct smsc911x_data *pdata)
+{
+       struct phy_device *phy_dev = pdata->phy_dev;
+       unsigned int temp;
+       unsigned int i = 100000;
+
+       BUG_ON(!phy_dev);
+       BUG_ON(!phy_dev->bus);
+
+       SMSC_TRACE(HW, "Performing PHY BCR Reset");
+       smsc911x_mii_write(phy_dev->bus, phy_dev->addr, MII_BMCR, BMCR_RESET);
+       do {
+               msleep(1);
+               temp = smsc911x_mii_read(phy_dev->bus, phy_dev->addr,
+                       MII_BMCR);
+       } while ((i--) && (temp & BMCR_RESET));
+
+       if (temp & BMCR_RESET) {
+               SMSC_WARNING(HW, "PHY reset failed to complete.");
+               return -EIO;
+       }
+       /* Extra delay required because the phy may not be completed with
+       * its reset when BMCR_RESET is cleared. Specs say 256 uS is
+       * enough delay but using 1ms here to be safe */
+       msleep(1);
+
+       return 0;
+}
+
+static int smsc911x_phy_loopbacktest(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       struct phy_device *phy_dev = pdata->phy_dev;
+       int result = -EIO;
+       unsigned int i, val;
+       unsigned long flags;
+
+       /* Initialise tx packet using broadcast destination address */
+       memset(pdata->loopback_tx_pkt, 0xff, ETH_ALEN);
+
+       /* Use incrementing source address */
+       for (i = 6; i < 12; i++)
+               pdata->loopback_tx_pkt[i] = (char)i;
+
+       /* Set length type field */
+       pdata->loopback_tx_pkt[12] = 0x00;
+       pdata->loopback_tx_pkt[13] = 0x00;
+
+       for (i = 14; i < MIN_PACKET_SIZE; i++)
+               pdata->loopback_tx_pkt[i] = (char)i;
+
+       val = smsc911x_reg_read(pdata, HW_CFG);
+       val &= HW_CFG_TX_FIF_SZ_;
+       val |= HW_CFG_SF_;
+       smsc911x_reg_write(pdata, HW_CFG, val);
+
+       smsc911x_reg_write(pdata, TX_CFG, TX_CFG_TX_ON_);
+       smsc911x_reg_write(pdata, RX_CFG,
+               (u32)((ulong)pdata->loopback_rx_pkt & 0x03) << 8);
+
+       for (i = 0; i < 10; i++) {
+               /* Set PHY to 10/FD, no ANEG, and loopback mode */
+               smsc911x_mii_write(phy_dev->bus, phy_dev->addr, MII_BMCR,
+                       BMCR_LOOPBACK | BMCR_FULLDPLX);
+
+               /* Enable MAC tx/rx, FD */
+               spin_lock_irqsave(&pdata->mac_lock, flags);
+               smsc911x_mac_write(pdata, MAC_CR, MAC_CR_FDPX_
+                                  | MAC_CR_TXEN_ | MAC_CR_RXEN_);
+               spin_unlock_irqrestore(&pdata->mac_lock, flags);
+
+               if (smsc911x_phy_check_loopbackpkt(pdata) == 0) {
+                       result = 0;
+                       break;
+               }
+               pdata->resetcount++;
+
+               /* Disable MAC rx */
+               spin_lock_irqsave(&pdata->mac_lock, flags);
+               smsc911x_mac_write(pdata, MAC_CR, 0);
+               spin_unlock_irqrestore(&pdata->mac_lock, flags);
+
+               smsc911x_phy_reset(pdata);
+       }
+
+       /* Disable MAC */
+       spin_lock_irqsave(&pdata->mac_lock, flags);
+       smsc911x_mac_write(pdata, MAC_CR, 0);
+       spin_unlock_irqrestore(&pdata->mac_lock, flags);
+
+       /* Cancel PHY loopback mode */
+       smsc911x_mii_write(phy_dev->bus, phy_dev->addr, MII_BMCR, 0);
+
+       smsc911x_reg_write(pdata, TX_CFG, 0);
+       smsc911x_reg_write(pdata, RX_CFG, 0);
+
+       return result;
+}
+#endif                         /* USE_PHY_WORK_AROUND */
+
+static u8 smsc95xx_resolve_flowctrl_fulldplx(u16 lcladv, u16 rmtadv)
+{
+       u8 cap = 0;
+
+       if (lcladv & ADVERTISE_PAUSE_CAP) {
+               if (lcladv & ADVERTISE_PAUSE_ASYM) {
+                       if (rmtadv & LPA_PAUSE_CAP)
+                               cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+                       else if (rmtadv & LPA_PAUSE_ASYM)
+                               cap = FLOW_CTRL_RX;
+               } else {
+                       if (rmtadv & LPA_PAUSE_CAP)
+                               cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+               }
+       } else if (lcladv & ADVERTISE_PAUSE_ASYM) {
+               if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
+                       cap = FLOW_CTRL_TX;
+       }
+
+       return cap;
+}
+
+static void smsc911x_phy_update_flowcontrol(struct smsc911x_data *pdata)
+{
+       struct phy_device *phy_dev = pdata->phy_dev;
+       u32 afc = smsc911x_reg_read(pdata, AFC_CFG);
+       u32 flow;
+       unsigned long flags;
+
+       if (phy_dev->duplex == DUPLEX_FULL) {
+               u16 lcladv = phy_read(phy_dev, MII_ADVERTISE);
+               u16 rmtadv = phy_read(phy_dev, MII_LPA);
+               u8 cap = smsc95xx_resolve_flowctrl_fulldplx(lcladv, rmtadv);
+
+               if (cap & FLOW_CTRL_RX)
+                       flow = 0xFFFF0002;
+               else
+                       flow = 0;
+
+               if (cap & FLOW_CTRL_TX)
+                       afc |= 0xF;
+               else
+                       afc &= ~0xF;
+
+               SMSC_TRACE(HW, "rx pause %s, tx pause %s",
+                       (cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
+                       (cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
+       } else {
+               SMSC_TRACE(HW, "half duplex");
+               flow = 0;
+               afc |= 0xF;
+       }
+
+       spin_lock_irqsave(&pdata->mac_lock, flags);
+       smsc911x_mac_write(pdata, FLOW, flow);
+       spin_unlock_irqrestore(&pdata->mac_lock, flags);
+
+       smsc911x_reg_write(pdata, AFC_CFG, afc);
+}
+
+/* Update link mode if anything has changed.  Called periodically when the
+ * PHY is in polling mode, even if nothing has changed. */
+static void smsc911x_phy_adjust_link(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       struct phy_device *phy_dev = pdata->phy_dev;
+       unsigned long flags;
+       int carrier;
+
+       if (phy_dev->duplex != pdata->last_duplex) {
+               unsigned int mac_cr;
+               SMSC_TRACE(HW, "duplex state has changed");
+
+               spin_lock_irqsave(&pdata->mac_lock, flags);
+               mac_cr = smsc911x_mac_read(pdata, MAC_CR);
+               if (phy_dev->duplex) {
+                       SMSC_TRACE(HW,
+                               "configuring for full duplex mode");
+                       mac_cr |= MAC_CR_FDPX_;
+               } else {
+                       SMSC_TRACE(HW,
+                               "configuring for half duplex mode");
+                       mac_cr &= ~MAC_CR_FDPX_;
+               }
+               smsc911x_mac_write(pdata, MAC_CR, mac_cr);
+               spin_unlock_irqrestore(&pdata->mac_lock, flags);
+
+               smsc911x_phy_update_flowcontrol(pdata);
+               pdata->last_duplex = phy_dev->duplex;
+       }
+
+       carrier = netif_carrier_ok(dev);
+       if (carrier != pdata->last_carrier) {
+               SMSC_TRACE(HW, "carrier state has changed");
+               if (carrier) {
+                       SMSC_TRACE(HW, "configuring for carrier OK");
+                       if ((pdata->gpio_orig_setting & GPIO_CFG_LED1_EN_) &&
+                           (!pdata->using_extphy)) {
+                               /* Restore orginal GPIO configuration */
+                               pdata->gpio_setting = pdata->gpio_orig_setting;
+                               smsc911x_reg_write(pdata, GPIO_CFG,
+                                       pdata->gpio_setting);
+                       }
+               } else {
+                       SMSC_TRACE(HW, "configuring for no carrier");
+                       /* Check global setting that LED1
+                        * usage is 10/100 indicator */
+                       pdata->gpio_setting = smsc911x_reg_read(pdata,
+                               GPIO_CFG);
+                       if ((pdata->gpio_setting & GPIO_CFG_LED1_EN_)
+                           && (!pdata->using_extphy)) {
+                               /* Force 10/100 LED off, after saving
+                                * orginal GPIO configuration */
+                               pdata->gpio_orig_setting = pdata->gpio_setting;
+
+                               pdata->gpio_setting &= ~GPIO_CFG_LED1_EN_;
+                               pdata->gpio_setting |= (GPIO_CFG_GPIOBUF0_
+                                                       | GPIO_CFG_GPIODIR0_
+                                                       | GPIO_CFG_GPIOD0_);
+                               smsc911x_reg_write(pdata, GPIO_CFG,
+                                       pdata->gpio_setting);
+                       }
+               }
+               pdata->last_carrier = carrier;
+       }
+}
+
+static int smsc911x_mii_probe(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       struct phy_device *phydev = NULL;
+       int phy_addr;
+
+       /* find the first phy */
+       for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+               if (pdata->mii_bus->phy_map[phy_addr]) {
+                       phydev = pdata->mii_bus->phy_map[phy_addr];
+                       SMSC_TRACE(PROBE, "PHY %d: addr %d, phy_id 0x%08X",
+                               phy_addr, phydev->addr, phydev->phy_id);
+                       break;
+               }
+       }
+
+       if (!phydev) {
+               pr_err("%s: no PHY found\n", dev->name);
+               return -ENODEV;
+       }
+
+       phydev = phy_connect(dev, phydev->dev.bus_id,
+               &smsc911x_phy_adjust_link, 0, pdata->phy_interface);
+
+       if (IS_ERR(phydev)) {
+               pr_err("%s: Could not attach to PHY\n", dev->name);
+               return PTR_ERR(phydev);
+       }
+
+       pr_info("%s: attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
+               dev->name, phydev->drv->name, phydev->dev.bus_id, phydev->irq);
+
+       /* mask with MAC supported features */
+       phydev->supported &= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
+                             SUPPORTED_Asym_Pause);
+       phydev->advertising = phydev->supported;
+
+       pdata->phy_dev = phydev;
+       pdata->last_duplex = -1;
+       pdata->last_carrier = -1;
+
+#ifdef USE_PHY_WORK_AROUND
+       if (smsc911x_phy_loopbacktest(dev) < 0) {
+               SMSC_WARNING(HW, "Failed Loop Back Test");
+               return -ENODEV;
+       }
+       SMSC_TRACE(HW, "Passed Loop Back Test");
+#endif                         /* USE_PHY_WORK_AROUND */
+
+       SMSC_TRACE(HW, "phy initialised succesfully");
+       return 0;
+}
+
+static int __devinit smsc911x_mii_init(struct platform_device *pdev,
+                                      struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       int err = -ENXIO, i;
+
+       pdata->mii_bus = mdiobus_alloc();
+       if (!pdata->mii_bus) {
+               err = -ENOMEM;
+               goto err_out_1;
+       }
+
+       pdata->mii_bus->name = SMSC_MDIONAME;
+       snprintf(pdata->mii_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id);
+       pdata->mii_bus->priv = pdata;
+       pdata->mii_bus->read = smsc911x_mii_read;
+       pdata->mii_bus->write = smsc911x_mii_write;
+       pdata->mii_bus->irq = pdata->phy_irq;
+       for (i = 0; i < PHY_MAX_ADDR; ++i)
+               pdata->mii_bus->irq[i] = PHY_POLL;
+
+       pdata->mii_bus->parent = &pdev->dev;
+       dev_set_drvdata(&pdev->dev, &pdata->mii_bus);
+
+       pdata->using_extphy = 0;
+
+       switch (pdata->idrev & 0xFFFF0000) {
+       case 0x01170000:
+       case 0x01150000:
+       case 0x117A0000:
+       case 0x115A0000:
+               /* External PHY supported, try to autodetect */
+               if (smsc911x_phy_initialise_external(pdata) < 0) {
+                       SMSC_TRACE(HW, "No external PHY detected, "
+                               "using internal PHY");
+               }
+               break;
+       default:
+               SMSC_TRACE(HW, "External PHY is not supported, "
+                       "using internal PHY");
+               break;
+       }
+
+       if (!pdata->using_extphy) {
+               /* Mask all PHYs except ID 1 (internal) */
+               pdata->mii_bus->phy_mask = ~(1 << 1);
+       }
+
+       if (mdiobus_register(pdata->mii_bus)) {
+               SMSC_WARNING(PROBE, "Error registering mii bus");
+               goto err_out_free_bus_2;
+       }
+
+       if (smsc911x_mii_probe(dev) < 0) {
+               SMSC_WARNING(PROBE, "Error registering mii bus");
+               goto err_out_unregister_bus_3;
+       }
+
+       return 0;
+
+err_out_unregister_bus_3:
+       mdiobus_unregister(pdata->mii_bus);
+err_out_free_bus_2:
+       mdiobus_free(pdata->mii_bus);
+err_out_1:
+       return err;
+}
+
+/* Gets the number of tx statuses in the fifo */
+static unsigned int smsc911x_tx_get_txstatcount(struct smsc911x_data *pdata)
+{
+       return (smsc911x_reg_read(pdata, TX_FIFO_INF)
+               & TX_FIFO_INF_TSUSED_) >> 16;
+}
+
+/* Reads tx statuses and increments counters where necessary */
+static void smsc911x_tx_update_txcounters(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       unsigned int tx_stat;
+
+       while ((tx_stat = smsc911x_tx_get_txstatus(pdata)) != 0) {
+               if (unlikely(tx_stat & 0x80000000)) {
+                       /* In this driver the packet tag is used as the packet
+                        * length. Since a packet length can never reach the
+                        * size of 0x8000, this bit is reserved. It is worth
+                        * noting that the "reserved bit" in the warning above
+                        * does not reference a hardware defined reserved bit
+                        * but rather a driver defined one.
+                        */
+                       SMSC_WARNING(HW,
+                               "Packet tag reserved bit is high");
+               } else {
+                       if (unlikely(tx_stat & 0x00008000)) {
+                               dev->stats.tx_errors++;
+                       } else {
+                               dev->stats.tx_packets++;
+                               dev->stats.tx_bytes += (tx_stat >> 16);
+                       }
+                       if (unlikely(tx_stat & 0x00000100)) {
+                               dev->stats.collisions += 16;
+                               dev->stats.tx_aborted_errors += 1;
+                       } else {
+                               dev->stats.collisions +=
+                                   ((tx_stat >> 3) & 0xF);
+                       }
+                       if (unlikely(tx_stat & 0x00000800))
+                               dev->stats.tx_carrier_errors += 1;
+                       if (unlikely(tx_stat & 0x00000200)) {
+                               dev->stats.collisions++;
+                               dev->stats.tx_aborted_errors++;
+                       }
+               }
+       }
+}
+
+/* Increments the Rx error counters */
+static void
+smsc911x_rx_counterrors(struct net_device *dev, unsigned int rxstat)
+{
+       int crc_err = 0;
+
+       if (unlikely(rxstat & 0x00008000)) {
+               dev->stats.rx_errors++;
+               if (unlikely(rxstat & 0x00000002)) {
+                       dev->stats.rx_crc_errors++;
+                       crc_err = 1;
+               }
+       }
+       if (likely(!crc_err)) {
+               if (unlikely((rxstat & 0x00001020) == 0x00001020)) {
+                       /* Frame type indicates length,
+                        * and length error is set */
+                       dev->stats.rx_length_errors++;
+               }
+               if (rxstat & RX_STS_MCAST_)
+                       dev->stats.multicast++;
+       }
+}
+
+/* Quickly dumps bad packets */
+static void
+smsc911x_rx_fastforward(struct smsc911x_data *pdata, unsigned int pktbytes)
+{
+       unsigned int pktwords = (pktbytes + NET_IP_ALIGN + 3) >> 2;
+
+       if (likely(pktwords >= 4)) {
+               unsigned int timeout = 500;
+               unsigned int val;
+               smsc911x_reg_write(pdata, RX_DP_CTRL, RX_DP_CTRL_RX_FFWD_);
+               do {
+                       udelay(1);
+                       val = smsc911x_reg_read(pdata, RX_DP_CTRL);
+               } while (timeout-- && (val & RX_DP_CTRL_RX_FFWD_));
+
+               if (unlikely(timeout == 0))
+                       SMSC_WARNING(HW, "Timed out waiting for "
+                               "RX FFWD to finish, RX_DP_CTRL: 0x%08X", val);
+       } else {
+               unsigned int temp;
+               while (pktwords--)
+                       temp = smsc911x_reg_read(pdata, RX_DATA_FIFO);
+       }
+}
+
+/* NAPI poll function */
+static int smsc911x_poll(struct napi_struct *napi, int budget)
+{
+       struct smsc911x_data *pdata =
+               container_of(napi, struct smsc911x_data, napi);
+       struct net_device *dev = pdata->dev;
+       int npackets = 0;
+
+       while (likely(netif_running(dev)) && (npackets < budget)) {
+               unsigned int pktlength;
+               unsigned int pktwords;
+               struct sk_buff *skb;
+               unsigned int rxstat = smsc911x_rx_get_rxstatus(pdata);
+
+               if (!rxstat) {
+                       unsigned int temp;
+                       /* We processed all packets available.  Tell NAPI it can
+                        * stop polling then re-enable rx interrupts */
+                       smsc911x_reg_write(pdata, INT_STS, INT_STS_RSFL_);
+                       netif_rx_complete(dev, napi);
+                       temp = smsc911x_reg_read(pdata, INT_EN);
+                       temp |= INT_EN_RSFL_EN_;
+                       smsc911x_reg_write(pdata, INT_EN, temp);
+                       break;
+               }
+
+               /* Count packet for NAPI scheduling, even if it has an error.
+                * Error packets still require cycles to discard */
+               npackets++;
+
+               pktlength = ((rxstat & 0x3FFF0000) >> 16);
+               pktwords = (pktlength + NET_IP_ALIGN + 3) >> 2;
+               smsc911x_rx_counterrors(dev, rxstat);
+
+               if (unlikely(rxstat & RX_STS_ES_)) {
+                       SMSC_WARNING(RX_ERR,
+                               "Discarding packet with error bit set");
+                       /* Packet has an error, discard it and continue with
+                        * the next */
+                       smsc911x_rx_fastforward(pdata, pktwords);
+                       dev->stats.rx_dropped++;
+                       continue;
+               }
+
+               skb = netdev_alloc_skb(dev, pktlength + NET_IP_ALIGN);
+               if (unlikely(!skb)) {
+                       SMSC_WARNING(RX_ERR,
+                               "Unable to allocate skb for rx packet");
+                       /* Drop the packet and stop this polling iteration */
+                       smsc911x_rx_fastforward(pdata, pktwords);
+                       dev->stats.rx_dropped++;
+                       break;
+               }
+
+               skb->data = skb->head;
+               skb_reset_tail_pointer(skb);
+
+               /* Align IP on 16B boundary */
+               skb_reserve(skb, NET_IP_ALIGN);
+               skb_put(skb, pktlength - 4);
+               smsc911x_rx_readfifo(pdata, (unsigned int *)skb->head,
+                                    pktwords);
+               skb->protocol = eth_type_trans(skb, dev);
+               skb->ip_summed = CHECKSUM_NONE;
+               netif_receive_skb(skb);
+
+               /* Update counters */
+               dev->stats.rx_packets++;
+               dev->stats.rx_bytes += (pktlength - 4);
+               dev->last_rx = jiffies;
+       }
+
+       /* Return total received packets */
+       return npackets;
+}
+
+/* Returns hash bit number for given MAC address
+ * Example:
+ * 01 00 5E 00 00 01 -> returns bit number 31 */
+static unsigned int smsc911x_hash(char addr[ETH_ALEN])
+{
+       return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
+}
+
+static void smsc911x_rx_multicast_update(struct smsc911x_data *pdata)
+{
+       /* Performs the multicast & mac_cr update.  This is called when
+        * safe on the current hardware, and with the mac_lock held */
+       unsigned int mac_cr;
+
+       SMSC_ASSERT_MAC_LOCK(pdata);
+
+       mac_cr = smsc911x_mac_read(pdata, MAC_CR);
+       mac_cr |= pdata->set_bits_mask;
+       mac_cr &= ~(pdata->clear_bits_mask);
+       smsc911x_mac_write(pdata, MAC_CR, mac_cr);
+       smsc911x_mac_write(pdata, HASHH, pdata->hashhi);
+       smsc911x_mac_write(pdata, HASHL, pdata->hashlo);
+       SMSC_TRACE(HW, "maccr 0x%08X, HASHH 0x%08X, HASHL 0x%08X",
+               mac_cr, pdata->hashhi, pdata->hashlo);
+}
+
+static void smsc911x_rx_multicast_update_workaround(struct smsc911x_data *pdata)
+{
+       unsigned int mac_cr;
+
+       /* This function is only called for older LAN911x devices
+        * (revA or revB), where MAC_CR, HASHH and HASHL should not
+        * be modified during Rx - newer devices immediately update the
+        * registers.
+        *
+        * This is called from interrupt context */
+
+       spin_lock(&pdata->mac_lock);
+
+       /* Check Rx has stopped */
+       if (smsc911x_mac_read(pdata, MAC_CR) & MAC_CR_RXEN_)
+               SMSC_WARNING(DRV, "Rx not stopped");
+
+       /* Perform the update - safe to do now Rx has stopped */
+       smsc911x_rx_multicast_update(pdata);
+
+       /* Re-enable Rx */
+       mac_cr = smsc911x_mac_read(pdata, MAC_CR);
+       mac_cr |= MAC_CR_RXEN_;
+       smsc911x_mac_write(pdata, MAC_CR, mac_cr);
+
+       pdata->multicast_update_pending = 0;
+
+       spin_unlock(&pdata->mac_lock);
+}
+
+static int smsc911x_soft_reset(struct smsc911x_data *pdata)
+{
+       unsigned int timeout;
+       unsigned int temp;
+
+       /* Reset the LAN911x */
+       smsc911x_reg_write(pdata, HW_CFG, HW_CFG_SRST_);
+       timeout = 10;
+       do {
+               udelay(10);
+               temp = smsc911x_reg_read(pdata, HW_CFG);
+       } while ((--timeout) && (temp & HW_CFG_SRST_));
+
+       if (unlikely(temp & HW_CFG_SRST_)) {
+               SMSC_WARNING(DRV, "Failed to complete reset");
+               return -EIO;
+       }
+       return 0;
+}
+
+/* Sets the device MAC address to dev_addr, called with mac_lock held */
+static void
+smsc911x_set_mac_address(struct smsc911x_data *pdata, u8 dev_addr[6])
+{
+       u32 mac_high16 = (dev_addr[5] << 8) | dev_addr[4];
+       u32 mac_low32 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
+           (dev_addr[1] << 8) | dev_addr[0];
+
+       SMSC_ASSERT_MAC_LOCK(pdata);
+
+       smsc911x_mac_write(pdata, ADDRH, mac_high16);
+       smsc911x_mac_write(pdata, ADDRL, mac_low32);
+}
+
+static int smsc911x_open(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       unsigned int timeout;
+       unsigned int temp;
+       unsigned int intcfg;
+
+       /* if the phy is not yet registered, retry later*/
+       if (!pdata->phy_dev) {
+               SMSC_WARNING(HW, "phy_dev is NULL");
+               return -EAGAIN;
+       }
+
+       if (!is_valid_ether_addr(dev->dev_addr)) {
+               SMSC_WARNING(HW, "dev_addr is not a valid MAC address");
+               return -EADDRNOTAVAIL;
+       }
+
+       /* Reset the LAN911x */
+       if (smsc911x_soft_reset(pdata)) {
+               SMSC_WARNING(HW, "soft reset failed");
+               return -EIO;
+       }
+
+       smsc911x_reg_write(pdata, HW_CFG, 0x00050000);
+       smsc911x_reg_write(pdata, AFC_CFG, 0x006E3740);
+
+       /* Make sure EEPROM has finished loading before setting GPIO_CFG */
+       timeout = 50;
+       while ((timeout--) &&
+              (smsc911x_reg_read(pdata, E2P_CMD) & E2P_CMD_EPC_BUSY_)) {
+               udelay(10);
+       }
+
+       if (unlikely(timeout == 0))
+               SMSC_WARNING(IFUP,
+                       "Timed out waiting for EEPROM busy bit to clear");
+
+       smsc911x_reg_write(pdata, GPIO_CFG, 0x70070000);
+
+       /* The soft reset above cleared the device's MAC address,
+        * restore it from local copy (set in probe) */
+       spin_lock_irq(&pdata->mac_lock);
+       smsc911x_set_mac_address(pdata, dev->dev_addr);
+       spin_unlock_irq(&pdata->mac_lock);
+
+       /* Initialise irqs, but leave all sources disabled */
+       smsc911x_reg_write(pdata, INT_EN, 0);
+       smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);
+
+       /* Set interrupt deassertion to 100uS */
+       intcfg = ((10 << 24) | INT_CFG_IRQ_EN_);
+
+       if (pdata->irq_polarity) {
+               SMSC_TRACE(IFUP, "irq polarity: active high");
+               intcfg |= INT_CFG_IRQ_POL_;
+       } else {
+               SMSC_TRACE(IFUP, "irq polarity: active low");
+       }
+
+       if (pdata->irq_type) {
+               SMSC_TRACE(IFUP, "irq type: push-pull");
+               intcfg |= INT_CFG_IRQ_TYPE_;
+       } else {
+               SMSC_TRACE(IFUP, "irq type: open drain");
+       }
+
+       smsc911x_reg_write(pdata, INT_CFG, intcfg);
+
+       SMSC_TRACE(IFUP, "Testing irq handler using IRQ %d", dev->irq);
+       pdata->software_irq_signal = 0;
+       smp_wmb();
+
+       temp = smsc911x_reg_read(pdata, INT_EN);
+       temp |= INT_EN_SW_INT_EN_;
+       smsc911x_reg_write(pdata, INT_EN, temp);
+
+       timeout = 1000;
+       while (timeout--) {
+               if (pdata->software_irq_signal)
+                       break;
+               msleep(1);
+       }
+
+       if (!pdata->software_irq_signal) {
+               dev_warn(&dev->dev, "ISR failed signaling test (IRQ %d)\n",
+                        dev->irq);
+               return -ENODEV;
+       }
+       SMSC_TRACE(IFUP, "IRQ handler passed test using IRQ %d", dev->irq);
+
+       dev_info(&dev->dev, "SMSC911x/921x identified at %#08lx, IRQ: %d\n",
+                (unsigned long)pdata->ioaddr, dev->irq);
+
+       /* Bring the PHY up */
+       phy_start(pdata->phy_dev);
+
+       temp = smsc911x_reg_read(pdata, HW_CFG);
+       /* Preserve TX FIFO size and external PHY configuration */
+       temp &= (HW_CFG_TX_FIF_SZ_|0x00000FFF);
+       temp |= HW_CFG_SF_;
+       smsc911x_reg_write(pdata, HW_CFG, temp);
+
+       temp = smsc911x_reg_read(pdata, FIFO_INT);
+       temp |= FIFO_INT_TX_AVAIL_LEVEL_;
+       temp &= ~(FIFO_INT_RX_STS_LEVEL_);
+       smsc911x_reg_write(pdata, FIFO_INT, temp);
+
+       /* set RX Data offset to 2 bytes for alignment */
+       smsc911x_reg_write(pdata, RX_CFG, (2 << 8));
+
+       /* enable NAPI polling before enabling RX interrupts */
+       napi_enable(&pdata->napi);
+
+       temp = smsc911x_reg_read(pdata, INT_EN);
+       temp |= (INT_EN_TDFA_EN_ | INT_EN_RSFL_EN_);
+       smsc911x_reg_write(pdata, INT_EN, temp);
+
+       spin_lock_irq(&pdata->mac_lock);
+       temp = smsc911x_mac_read(pdata, MAC_CR);
+       temp |= (MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);
+       smsc911x_mac_write(pdata, MAC_CR, temp);
+       spin_unlock_irq(&pdata->mac_lock);
+
+       smsc911x_reg_write(pdata, TX_CFG, TX_CFG_TX_ON_);
+
+       netif_start_queue(dev);
+       return 0;
+}
+
+/* Entry point for stopping the interface */
+static int smsc911x_stop(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       unsigned int temp;
+
+       BUG_ON(!pdata->phy_dev);
+
+       /* Disable all device interrupts */
+       temp = smsc911x_reg_read(pdata, INT_CFG);
+       temp &= ~INT_CFG_IRQ_EN_;
+       smsc911x_reg_write(pdata, INT_CFG, temp);
+
+       /* Stop Tx and Rx polling */
+       netif_stop_queue(dev);
+       napi_disable(&pdata->napi);
+
+       /* At this point all Rx and Tx activity is stopped */
+       dev->stats.rx_dropped += smsc911x_reg_read(pdata, RX_DROP);
+       smsc911x_tx_update_txcounters(dev);
+
+       /* Bring the PHY down */
+       phy_stop(pdata->phy_dev);
+
+       SMSC_TRACE(IFDOWN, "Interface stopped");
+       return 0;
+}
+
+/* Entry point for transmitting a packet */
+static int smsc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       unsigned int freespace;
+       unsigned int tx_cmd_a;
+       unsigned int tx_cmd_b;
+       unsigned int temp;
+       u32 wrsz;
+       ulong bufp;
+
+       freespace = smsc911x_reg_read(pdata, TX_FIFO_INF) & TX_FIFO_INF_TDFREE_;
+
+       if (unlikely(freespace < TX_FIFO_LOW_THRESHOLD))
+               SMSC_WARNING(TX_ERR,
+                       "Tx data fifo low, space available: %d", freespace);
+
+       /* Word alignment adjustment */
+       tx_cmd_a = (u32)((ulong)skb->data & 0x03) << 16;
+       tx_cmd_a |= TX_CMD_A_FIRST_SEG_ | TX_CMD_A_LAST_SEG_;
+       tx_cmd_a |= (unsigned int)skb->len;
+
+       tx_cmd_b = ((unsigned int)skb->len) << 16;
+       tx_cmd_b |= (unsigned int)skb->len;
+
+       smsc911x_reg_write(pdata, TX_DATA_FIFO, tx_cmd_a);
+       smsc911x_reg_write(pdata, TX_DATA_FIFO, tx_cmd_b);
+
+       bufp = (ulong)skb->data & (~0x3);
+       wrsz = (u32)skb->len + 3;
+       wrsz += (u32)((ulong)skb->data & 0x3);
+       wrsz >>= 2;
+
+       smsc911x_tx_writefifo(pdata, (unsigned int *)bufp, wrsz);
+       freespace -= (skb->len + 32);
+       dev_kfree_skb(skb);
+       dev->trans_start = jiffies;
+
+       if (unlikely(smsc911x_tx_get_txstatcount(pdata) >= 30))
+               smsc911x_tx_update_txcounters(dev);
+
+       if (freespace < TX_FIFO_LOW_THRESHOLD) {
+               netif_stop_queue(dev);
+               temp = smsc911x_reg_read(pdata, FIFO_INT);
+               temp &= 0x00FFFFFF;
+               temp |= 0x32000000;
+               smsc911x_reg_write(pdata, FIFO_INT, temp);
+       }
+
+       return NETDEV_TX_OK;
+}
+
+/* Entry point for getting status counters */
+static struct net_device_stats *smsc911x_get_stats(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       smsc911x_tx_update_txcounters(dev);
+       dev->stats.rx_dropped += smsc911x_reg_read(pdata, RX_DROP);
+       return &dev->stats;
+}
+
+/* Entry point for setting addressing modes */
+static void smsc911x_set_multicast_list(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       unsigned long flags;
+
+       if (dev->flags & IFF_PROMISC) {
+               /* Enabling promiscuous mode */
+               pdata->set_bits_mask = MAC_CR_PRMS_;
+               pdata->clear_bits_mask = (MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+               pdata->hashhi = 0;
+               pdata->hashlo = 0;
+       } else if (dev->flags & IFF_ALLMULTI) {
+               /* Enabling all multicast mode */
+               pdata->set_bits_mask = MAC_CR_MCPAS_;
+               pdata->clear_bits_mask = (MAC_CR_PRMS_ | MAC_CR_HPFILT_);
+               pdata->hashhi = 0;
+               pdata->hashlo = 0;
+       } else if (dev->mc_count > 0) {
+               /* Enabling specific multicast addresses */
+               unsigned int hash_high = 0;
+               unsigned int hash_low = 0;
+               unsigned int count = 0;
+               struct dev_mc_list *mc_list = dev->mc_list;
+
+               pdata->set_bits_mask = MAC_CR_HPFILT_;
+               pdata->clear_bits_mask = (MAC_CR_PRMS_ | MAC_CR_MCPAS_);
+
+               while (mc_list) {
+                       count++;
+                       if ((mc_list->dmi_addrlen) == ETH_ALEN) {
+                               unsigned int bitnum =
+                                   smsc911x_hash(mc_list->dmi_addr);
+                               unsigned int mask = 0x01 << (bitnum & 0x1F);
+                               if (bitnum & 0x20)
+                                       hash_high |= mask;
+                               else
+                                       hash_low |= mask;
+                       } else {
+                               SMSC_WARNING(DRV, "dmi_addrlen != 6");
+                       }
+                       mc_list = mc_list->next;
+               }
+               if (count != (unsigned int)dev->mc_count)
+                       SMSC_WARNING(DRV, "mc_count != dev->mc_count");
+
+               pdata->hashhi = hash_high;
+               pdata->hashlo = hash_low;
+       } else {
+               /* Enabling local MAC address only */
+               pdata->set_bits_mask = 0;
+               pdata->clear_bits_mask =
+                   (MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+               pdata->hashhi = 0;
+               pdata->hashlo = 0;
+       }
+
+       spin_lock_irqsave(&pdata->mac_lock, flags);
+
+       if (pdata->generation <= 1) {
+               /* Older hardware revision - cannot change these flags while
+                * receiving data */
+               if (!pdata->multicast_update_pending) {
+                       unsigned int temp;
+                       SMSC_TRACE(HW, "scheduling mcast update");
+                       pdata->multicast_update_pending = 1;
+
+                       /* Request the hardware to stop, then perform the
+                        * update when we get an RX_STOP interrupt */
+                       smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
+                       temp = smsc911x_reg_read(pdata, INT_EN);
+                       temp |= INT_EN_RXSTOP_INT_EN_;
+                       smsc911x_reg_write(pdata, INT_EN, temp);
+
+                       temp = smsc911x_mac_read(pdata, MAC_CR);
+                       temp &= ~(MAC_CR_RXEN_);
+                       smsc911x_mac_write(pdata, MAC_CR, temp);
+               } else {
+                       /* There is another update pending, this should now
+                        * use the newer values */
+               }
+       } else {
+               /* Newer hardware revision - can write immediately */
+               smsc911x_rx_multicast_update(pdata);
+       }
+
+       spin_unlock_irqrestore(&pdata->mac_lock, flags);
+}
+
+static irqreturn_t smsc911x_irqhandler(int irq, void *dev_id)
+{
+       struct net_device *dev = dev_id;
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       u32 intsts = smsc911x_reg_read(pdata, INT_STS);
+       u32 inten = smsc911x_reg_read(pdata, INT_EN);
+       int serviced = IRQ_NONE;
+       u32 temp;
+
+       if (unlikely(intsts & inten & INT_STS_SW_INT_)) {
+               temp = smsc911x_reg_read(pdata, INT_EN);
+               temp &= (~INT_EN_SW_INT_EN_);
+               smsc911x_reg_write(pdata, INT_EN, temp);
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_SW_INT_);
+               pdata->software_irq_signal = 1;
+               smp_wmb();
+               serviced = IRQ_HANDLED;
+       }
+
+       if (unlikely(intsts & inten & INT_STS_RXSTOP_INT_)) {
+               /* Called when there is a multicast update scheduled and
+                * it is now safe to complete the update */
+               SMSC_TRACE(INTR, "RX Stop interrupt");
+               temp = smsc911x_reg_read(pdata, INT_EN);
+               temp &= (~INT_EN_RXSTOP_INT_EN_);
+               smsc911x_reg_write(pdata, INT_EN, temp);
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
+               smsc911x_rx_multicast_update_workaround(pdata);
+               serviced = IRQ_HANDLED;
+       }
+
+       if (intsts & inten & INT_STS_TDFA_) {
+               temp = smsc911x_reg_read(pdata, FIFO_INT);
+               temp |= FIFO_INT_TX_AVAIL_LEVEL_;
+               smsc911x_reg_write(pdata, FIFO_INT, temp);
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_TDFA_);
+               netif_wake_queue(dev);
+               serviced = IRQ_HANDLED;
+       }
+
+       if (unlikely(intsts & inten & INT_STS_RXE_)) {
+               SMSC_TRACE(INTR, "RX Error interrupt");
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_RXE_);
+               serviced = IRQ_HANDLED;
+       }
+
+       if (likely(intsts & inten & INT_STS_RSFL_)) {
+               if (likely(netif_rx_schedule_prep(dev, &pdata->napi))) {
+                       /* Disable Rx interrupts */
+                       temp = smsc911x_reg_read(pdata, INT_EN);
+                       temp &= (~INT_EN_RSFL_EN_);
+                       smsc911x_reg_write(pdata, INT_EN, temp);
+                       /* Schedule a NAPI poll */
+                       __netif_rx_schedule(dev, &pdata->napi);
+               } else {
+                       SMSC_WARNING(RX_ERR,
+                               "netif_rx_schedule_prep failed");
+               }
+               serviced = IRQ_HANDLED;
+       }
+
+       return serviced;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+void smsc911x_poll_controller(struct net_device *dev)
+{
+       disable_irq(dev->irq);
+       smsc911x_irqhandler(0, dev);
+       enable_irq(dev->irq);
+}
+#endif                         /* CONFIG_NET_POLL_CONTROLLER */
+
+/* Standard ioctls for mii-tool */
+static int smsc911x_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+
+       if (!netif_running(dev) || !pdata->phy_dev)
+               return -EINVAL;
+
+       return phy_mii_ioctl(pdata->phy_dev, if_mii(ifr), cmd);
+}
+
+static int
+smsc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+
+       cmd->maxtxpkt = 1;
+       cmd->maxrxpkt = 1;
+       return phy_ethtool_gset(pdata->phy_dev, cmd);
+}
+
+static int
+smsc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+
+       return phy_ethtool_sset(pdata->phy_dev, cmd);
+}
+
+static void smsc911x_ethtool_getdrvinfo(struct net_device *dev,
+                                       struct ethtool_drvinfo *info)
+{
+       strlcpy(info->driver, SMSC_CHIPNAME, sizeof(info->driver));
+       strlcpy(info->version, SMSC_DRV_VERSION, sizeof(info->version));
+       strlcpy(info->bus_info, dev->dev.parent->bus_id,
+               sizeof(info->bus_info));
+}
+
+static int smsc911x_ethtool_nwayreset(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+
+       return phy_start_aneg(pdata->phy_dev);
+}
+
+static u32 smsc911x_ethtool_getmsglevel(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       return pdata->msg_enable;
+}
+
+static void smsc911x_ethtool_setmsglevel(struct net_device *dev, u32 level)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       pdata->msg_enable = level;
+}
+
+static int smsc911x_ethtool_getregslen(struct net_device *dev)
+{
+       return (((E2P_DATA - ID_REV) / 4 + 1) + (WUCSR - MAC_CR) + 1 + 32) *
+           sizeof(u32);
+}
+
+static void
+smsc911x_ethtool_getregs(struct net_device *dev, struct ethtool_regs *regs,
+                        void *buf)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       struct phy_device *phy_dev = pdata->phy_dev;
+       unsigned long flags;
+       unsigned int i;
+       unsigned int j = 0;
+       u32 *data = buf;
+
+       regs->version = pdata->idrev;
+       for (i = ID_REV; i <= E2P_DATA; i += (sizeof(u32)))
+               data[j++] = smsc911x_reg_read(pdata, i);
+
+       for (i = MAC_CR; i <= WUCSR; i++) {
+               spin_lock_irqsave(&pdata->mac_lock, flags);
+               data[j++] = smsc911x_mac_read(pdata, i);
+               spin_unlock_irqrestore(&pdata->mac_lock, flags);
+       }
+
+       for (i = 0; i <= 31; i++)
+               data[j++] = smsc911x_mii_read(phy_dev->bus, phy_dev->addr, i);
+}
+
+static void smsc911x_eeprom_enable_access(struct smsc911x_data *pdata)
+{
+       unsigned int temp = smsc911x_reg_read(pdata, GPIO_CFG);
+       temp &= ~GPIO_CFG_EEPR_EN_;
+       smsc911x_reg_write(pdata, GPIO_CFG, temp);
+       msleep(1);
+}
+
+static int smsc911x_eeprom_send_cmd(struct smsc911x_data *pdata, u32 op)
+{
+       int timeout = 100;
+       u32 e2cmd;
+
+       SMSC_TRACE(DRV, "op 0x%08x", op);
+       if (smsc911x_reg_read(pdata, E2P_CMD) & E2P_CMD_EPC_BUSY_) {
+               SMSC_WARNING(DRV, "Busy at start");
+               return -EBUSY;
+       }
+
+       e2cmd = op | E2P_CMD_EPC_BUSY_;
+       smsc911x_reg_write(pdata, E2P_CMD, e2cmd);
+
+       do {
+               msleep(1);
+               e2cmd = smsc911x_reg_read(pdata, E2P_CMD);
+       } while ((e2cmd & E2P_CMD_EPC_BUSY_) && (timeout--));
+
+       if (!timeout) {
+               SMSC_TRACE(DRV, "TIMED OUT");
+               return -EAGAIN;
+       }
+
+       if (e2cmd & E2P_CMD_EPC_TIMEOUT_) {
+               SMSC_TRACE(DRV, "Error occured during eeprom operation");
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+static int smsc911x_eeprom_read_location(struct smsc911x_data *pdata,
+                                        u8 address, u8 *data)
+{
+       u32 op = E2P_CMD_EPC_CMD_READ_ | address;
+       int ret;
+
+       SMSC_TRACE(DRV, "address 0x%x", address);
+       ret = smsc911x_eeprom_send_cmd(pdata, op);
+
+       if (!ret)
+               data[address] = smsc911x_reg_read(pdata, E2P_DATA);
+
+       return ret;
+}
+
+static int smsc911x_eeprom_write_location(struct smsc911x_data *pdata,
+                                         u8 address, u8 data)
+{
+       u32 op = E2P_CMD_EPC_CMD_ERASE_ | address;
+       int ret;
+
+       SMSC_TRACE(DRV, "address 0x%x, data 0x%x", address, data);
+       ret = smsc911x_eeprom_send_cmd(pdata, op);
+
+       if (!ret) {
+               op = E2P_CMD_EPC_CMD_WRITE_ | address;
+               smsc911x_reg_write(pdata, E2P_DATA, (u32)data);
+               ret = smsc911x_eeprom_send_cmd(pdata, op);
+       }
+
+       return ret;
+}
+
+static int smsc911x_ethtool_get_eeprom_len(struct net_device *dev)
+{
+       return SMSC911X_EEPROM_SIZE;
+}
+
+static int smsc911x_ethtool_get_eeprom(struct net_device *dev,
+                                      struct ethtool_eeprom *eeprom, u8 *data)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       u8 eeprom_data[SMSC911X_EEPROM_SIZE];
+       int len;
+       int i;
+
+       smsc911x_eeprom_enable_access(pdata);
+
+       len = min(eeprom->len, SMSC911X_EEPROM_SIZE);
+       for (i = 0; i < len; i++) {
+               int ret = smsc911x_eeprom_read_location(pdata, i, eeprom_data);
+               if (ret < 0) {
+                       eeprom->len = 0;
+                       return ret;
+               }
+       }
+
+       memcpy(data, &eeprom_data[eeprom->offset], len);
+       eeprom->len = len;
+       return 0;
+}
+
+static int smsc911x_ethtool_set_eeprom(struct net_device *dev,
+                                      struct ethtool_eeprom *eeprom, u8 *data)
+{
+       int ret;
+       struct smsc911x_data *pdata = netdev_priv(dev);
+
+       smsc911x_eeprom_enable_access(pdata);
+       smsc911x_eeprom_send_cmd(pdata, E2P_CMD_EPC_CMD_EWEN_);
+       ret = smsc911x_eeprom_write_location(pdata, eeprom->offset, *data);
+       smsc911x_eeprom_send_cmd(pdata, E2P_CMD_EPC_CMD_EWDS_);
+
+       /* Single byte write, according to man page */
+       eeprom->len = 1;
+
+       return ret;
+}
+
+static struct ethtool_ops smsc911x_ethtool_ops = {
+       .get_settings = smsc911x_ethtool_getsettings,
+       .set_settings = smsc911x_ethtool_setsettings,
+       .get_link = ethtool_op_get_link,
+       .get_drvinfo = smsc911x_ethtool_getdrvinfo,
+       .nway_reset = smsc911x_ethtool_nwayreset,
+       .get_msglevel = smsc911x_ethtool_getmsglevel,
+       .set_msglevel = smsc911x_ethtool_setmsglevel,
+       .get_regs_len = smsc911x_ethtool_getregslen,
+       .get_regs = smsc911x_ethtool_getregs,
+       .get_eeprom_len = smsc911x_ethtool_get_eeprom_len,
+       .get_eeprom = smsc911x_ethtool_get_eeprom,
+       .set_eeprom = smsc911x_ethtool_set_eeprom,
+};
+
+/* Initializing private device structures, only called from probe */
+static int __devinit smsc911x_init(struct net_device *dev)
+{
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       unsigned int byte_test;
+
+       SMSC_TRACE(PROBE, "Driver Parameters:");
+       SMSC_TRACE(PROBE, "LAN base: 0x%08lX",
+               (unsigned long)pdata->ioaddr);
+       SMSC_TRACE(PROBE, "IRQ: %d", dev->irq);
+       SMSC_TRACE(PROBE, "PHY will be autodetected.");
+
+#if (!SMSC_CAN_USE_32BIT)
+       spin_lock_init(&pdata->dev_lock);
+#endif
+
+       if (pdata->ioaddr == 0) {
+               SMSC_WARNING(PROBE, "pdata->ioaddr: 0x00000000");
+               return -ENODEV;
+       }
+
+       /* Check byte ordering */
+       byte_test = smsc911x_reg_read(pdata, BYTE_TEST);
+       SMSC_TRACE(PROBE, "BYTE_TEST: 0x%08X", byte_test);
+       if (byte_test == 0x43218765) {
+               SMSC_TRACE(PROBE, "BYTE_TEST looks swapped, "
+                       "applying WORD_SWAP");
+               smsc911x_reg_write(pdata, WORD_SWAP, 0xffffffff);
+
+               /* 1 dummy read of BYTE_TEST is needed after a write to
+                * WORD_SWAP before its contents are valid */
+               byte_test = smsc911x_reg_read(pdata, BYTE_TEST);
+
+               byte_test = smsc911x_reg_read(pdata, BYTE_TEST);
+       }
+
+       if (byte_test != 0x87654321) {
+               SMSC_WARNING(DRV, "BYTE_TEST: 0x%08X", byte_test);
+               if (((byte_test >> 16) & 0xFFFF) == (byte_test & 0xFFFF)) {
+                       SMSC_WARNING(PROBE,
+                               "top 16 bits equal to bottom 16 bits");
+                       SMSC_TRACE(PROBE, "This may mean the chip is set "
+                               "for 32 bit while the bus is reading 16 bit");
+               }
+               return -ENODEV;
+       }
+
+       /* Default generation to zero (all workarounds apply) */
+       pdata->generation = 0;
+
+       pdata->idrev = smsc911x_reg_read(pdata, ID_REV);
+       switch (pdata->idrev & 0xFFFF0000) {
+       case 0x01180000:
+       case 0x01170000:
+       case 0x01160000:
+       case 0x01150000:
+               /* LAN911[5678] family */
+               pdata->generation = pdata->idrev & 0x0000FFFF;
+               break;
+
+       case 0x118A0000:
+       case 0x117A0000:
+       case 0x116A0000:
+       case 0x115A0000:
+               /* LAN921[5678] family */
+               pdata->generation = 3;
+               break;
+
+       case 0x92100000:
+       case 0x92110000:
+       case 0x92200000:
+       case 0x92210000:
+               /* LAN9210/LAN9211/LAN9220/LAN9221 */
+               pdata->generation = 4;
+               break;
+
+       default:
+               SMSC_WARNING(PROBE, "LAN911x not identified, idrev: 0x%08X",
+                       pdata->idrev);
+               return -ENODEV;
+       }
+
+       SMSC_TRACE(PROBE, "LAN911x identified, idrev: 0x%08X, generation: %d",
+               pdata->idrev, pdata->generation);
+
+       if (pdata->generation == 0)
+               SMSC_WARNING(PROBE,
+                       "This driver is not intended for this chip revision");
+
+       /* Reset the LAN911x */
+       if (smsc911x_soft_reset(pdata))
+               return -ENODEV;
+
+       /* Disable all interrupt sources until we bring the device up */
+       smsc911x_reg_write(pdata, INT_EN, 0);
+
+       ether_setup(dev);
+       dev->open = smsc911x_open;
+       dev->stop = smsc911x_stop;
+       dev->hard_start_xmit = smsc911x_hard_start_xmit;
+       dev->get_stats = smsc911x_get_stats;
+       dev->set_multicast_list = smsc911x_set_multicast_list;
+       dev->flags |= IFF_MULTICAST;
+       dev->do_ioctl = smsc911x_do_ioctl;
+       netif_napi_add(dev, &pdata->napi, smsc911x_poll, SMSC_NAPI_WEIGHT);
+       dev->ethtool_ops = &smsc911x_ethtool_ops;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+       dev->poll_controller = smsc911x_poll_controller;
+#endif                         /* CONFIG_NET_POLL_CONTROLLER */
+
+       return 0;
+}
+
+static int __devexit smsc911x_drv_remove(struct platform_device *pdev)
+{
+       struct net_device *dev;
+       struct smsc911x_data *pdata;
+       struct resource *res;
+
+       dev = platform_get_drvdata(pdev);
+       BUG_ON(!dev);
+       pdata = netdev_priv(dev);
+       BUG_ON(!pdata);
+       BUG_ON(!pdata->ioaddr);
+       BUG_ON(!pdata->phy_dev);
+
+       SMSC_TRACE(IFDOWN, "Stopping driver.");
+
+       phy_disconnect(pdata->phy_dev);
+       pdata->phy_dev = NULL;
+       mdiobus_unregister(pdata->mii_bus);
+       mdiobus_free(pdata->mii_bus);
+
+       platform_set_drvdata(pdev, NULL);
+       unregister_netdev(dev);
+       free_irq(dev->irq, dev);
+       res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+                                          "smsc911x-memory");
+       if (!res)
+               platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+       release_mem_region(res->start, res->end - res->start);
+
+       iounmap(pdata->ioaddr);
+
+       free_netdev(dev);
+
+       return 0;
+}
+
+static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
+{
+       struct net_device *dev;
+       struct smsc911x_data *pdata;
+       struct resource *res;
+       unsigned int intcfg = 0;
+       int res_size;
+       int retval;
+       DECLARE_MAC_BUF(mac);
+
+       pr_info("%s: Driver version %s.\n", SMSC_CHIPNAME, SMSC_DRV_VERSION);
+
+       res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+                                          "smsc911x-memory");
+       if (!res)
+               res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!res) {
+               pr_warning("%s: Could not allocate resource.\n",
+                       SMSC_CHIPNAME);
+               retval = -ENODEV;
+               goto out_0;
+       }
+       res_size = res->end - res->start;
+
+       if (!request_mem_region(res->start, res_size, SMSC_CHIPNAME)) {
+               retval = -EBUSY;
+               goto out_0;
+       }
+
+       dev = alloc_etherdev(sizeof(struct smsc911x_data));
+       if (!dev) {
+               pr_warning("%s: Could not allocate device.\n", SMSC_CHIPNAME);
+               retval = -ENOMEM;
+               goto out_release_io_1;
+       }
+
+       SET_NETDEV_DEV(dev, &pdev->dev);
+
+       pdata = netdev_priv(dev);
+
+       dev->irq = platform_get_irq(pdev, 0);
+       pdata->ioaddr = ioremap_nocache(res->start, res_size);
+
+       /* copy config parameters across if present, otherwise pdata
+        * defaults to zeros */
+       if (pdev->dev.platform_data) {
+               struct smsc911x_platform_config *config =
+                       pdev->dev.platform_data;
+               pdata->irq_polarity = config->irq_polarity;
+               pdata->irq_type  = config->irq_type;
+               pdata->phy_interface = config->phy_interface;
+       }
+
+       pdata->dev = dev;
+       pdata->msg_enable = ((1 << debug) - 1);
+
+       if (pdata->ioaddr == NULL) {
+               SMSC_WARNING(PROBE,
+                       "Error smsc911x base address invalid");
+               retval = -ENOMEM;
+               goto out_free_netdev_2;
+       }
+
+       retval = smsc911x_init(dev);
+       if (retval < 0)
+               goto out_unmap_io_3;
+
+       /* configure irq polarity and type before connecting isr */
+       if (pdata->irq_polarity == SMSC911X_IRQ_POLARITY_ACTIVE_HIGH)
+               intcfg |= INT_CFG_IRQ_POL_;
+
+       if (pdata->irq_type == SMSC911X_IRQ_TYPE_PUSH_PULL)
+               intcfg |= INT_CFG_IRQ_TYPE_;
+
+       smsc911x_reg_write(pdata, INT_CFG, intcfg);
+
+       /* Ensure interrupts are globally disabled before connecting ISR */
+       smsc911x_reg_write(pdata, INT_EN, 0);
+       smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);
+
+       retval = request_irq(dev->irq, smsc911x_irqhandler, IRQF_DISABLED,
+                            SMSC_CHIPNAME, dev);
+       if (retval) {
+               SMSC_WARNING(PROBE,
+                       "Unable to claim requested irq: %d", dev->irq);
+               goto out_unmap_io_3;
+       }
+
+       platform_set_drvdata(pdev, dev);
+
+       retval = register_netdev(dev);
+       if (retval) {
+               SMSC_WARNING(PROBE,
+                       "Error %i registering device", retval);
+               goto out_unset_drvdata_4;
+       } else {
+               SMSC_TRACE(PROBE, "Network interface: \"%s\"", dev->name);
+       }
+
+       spin_lock_init(&pdata->mac_lock);
+
+       retval = smsc911x_mii_init(pdev, dev);
+       if (retval) {
+               SMSC_WARNING(PROBE,
+                       "Error %i initialising mii", retval);
+               goto out_unregister_netdev_5;
+       }
+
+       spin_lock_irq(&pdata->mac_lock);
+
+       /* Check if mac address has been specified when bringing interface up */
+       if (is_valid_ether_addr(dev->dev_addr)) {
+               smsc911x_set_mac_address(pdata, dev->dev_addr);
+               SMSC_TRACE(PROBE, "MAC Address is specified by configuration");
+       } else {
+               /* Try reading mac address from device. if EEPROM is present
+                * it will already have been set */
+               u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH);
+               u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL);
+               dev->dev_addr[0] = (u8)(mac_low32);
+               dev->dev_addr[1] = (u8)(mac_low32 >> 8);
+               dev->dev_addr[2] = (u8)(mac_low32 >> 16);
+               dev->dev_addr[3] = (u8)(mac_low32 >> 24);
+               dev->dev_addr[4] = (u8)(mac_high16);
+               dev->dev_addr[5] = (u8)(mac_high16 >> 8);
+
+               if (is_valid_ether_addr(dev->dev_addr)) {
+                       /* eeprom values are valid  so use them */
+                       SMSC_TRACE(PROBE,
+                               "Mac Address is read from LAN911x EEPROM");
+               } else {
+                       /* eeprom values are invalid, generate random MAC */
+                       random_ether_addr(dev->dev_addr);
+                       smsc911x_set_mac_address(pdata, dev->dev_addr);
+                       SMSC_TRACE(PROBE,
+                               "MAC Address is set to random_ether_addr");
+               }
+       }
+
+       spin_unlock_irq(&pdata->mac_lock);
+
+       dev_info(&dev->dev, "MAC Address: %s\n",
+                print_mac(mac, dev->dev_addr));
+
+       return 0;
+
+out_unregister_netdev_5:
+       unregister_netdev(dev);
+out_unset_drvdata_4:
+       platform_set_drvdata(pdev, NULL);
+       free_irq(dev->irq, dev);
+out_unmap_io_3:
+       iounmap(pdata->ioaddr);
+out_free_netdev_2:
+       free_netdev(dev);
+out_release_io_1:
+       release_mem_region(res->start, res->end - res->start);
+out_0:
+       return retval;
+}
+
+static struct platform_driver smsc911x_driver = {
+       .probe = smsc911x_drv_probe,
+       .remove = smsc911x_drv_remove,
+       .driver = {
+               .name = SMSC_CHIPNAME,
+       },
+};
+
+/* Entry point for loading the module */
+static int __init smsc911x_init_module(void)
+{
+       return platform_driver_register(&smsc911x_driver);
+}
+
+/* entry point for unloading the module */
+static void __exit smsc911x_cleanup_module(void)
+{
+       platform_driver_unregister(&smsc911x_driver);
+}
+
+module_init(smsc911x_init_module);
+module_exit(smsc911x_cleanup_module);
diff --git a/drivers/net/smsc911x.h b/drivers/net/smsc911x.h
new file mode 100644 (file)
index 0000000..feb36de
--- /dev/null
@@ -0,0 +1,394 @@
+/***************************************************************************
+ *
+ * Copyright (C) 2004-2008 SMSC
+ * Copyright (C) 2005-2008 ARM
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ ***************************************************************************/
+#ifndef __SMSC911X_H__
+#define __SMSC911X_H__
+
+#define SMSC_CAN_USE_32BIT     1
+#define TX_FIFO_LOW_THRESHOLD  ((u32)1600)
+#define SMSC911X_EEPROM_SIZE   ((u32)7)
+#define USE_DEBUG              0
+
+/* This is the maximum number of packets to be received every
+ * NAPI poll */
+#define SMSC_NAPI_WEIGHT       16
+
+/* implements a PHY loopback test at initialisation time, to ensure a packet
+ * can be succesfully looped back */
+#define USE_PHY_WORK_AROUND
+
+#define DPRINTK(nlevel, klevel, fmt, args...) \
+       ((void)((NETIF_MSG_##nlevel & pdata->msg_enable) && \
+       printk(KERN_##klevel "%s: %s: " fmt "\n", \
+       pdata->dev->name, __func__, ## args)))
+
+#if USE_DEBUG >= 1
+#define SMSC_WARNING(nlevel, fmt, args...) \
+       DPRINTK(nlevel, WARNING, fmt, ## args)
+#else
+#define SMSC_WARNING(nlevel, fmt, args...) \
+       ({ do {} while (0); 0; })
+#endif
+
+#if USE_DEBUG >= 2
+#define SMSC_TRACE(nlevel, fmt, args...) \
+       DPRINTK(nlevel, INFO, fmt, ## args)
+#else
+#define SMSC_TRACE(nlevel, fmt, args...) \
+       ({ do {} while (0); 0; })
+#endif
+
+#ifdef CONFIG_DEBUG_SPINLOCK
+#define SMSC_ASSERT_MAC_LOCK(pdata) \
+               WARN_ON(!spin_is_locked(&pdata->mac_lock))
+#else
+#define SMSC_ASSERT_MAC_LOCK(pdata) do {} while (0)
+#endif                         /* CONFIG_DEBUG_SPINLOCK */
+
+#define FLOW_CTRL_TX           (1)
+#define FLOW_CTRL_RX           (2)
+
+/* SMSC911x registers and bitfields */
+#define RX_DATA_FIFO                   0x00
+
+#define TX_DATA_FIFO                   0x20
+#define TX_CMD_A_ON_COMP_              0x80000000
+#define TX_CMD_A_BUF_END_ALGN_         0x03000000
+#define TX_CMD_A_4_BYTE_ALGN_          0x00000000
+#define TX_CMD_A_16_BYTE_ALGN_         0x01000000
+#define TX_CMD_A_32_BYTE_ALGN_         0x02000000
+#define TX_CMD_A_DATA_OFFSET_          0x001F0000
+#define TX_CMD_A_FIRST_SEG_            0x00002000
+#define TX_CMD_A_LAST_SEG_             0x00001000
+#define TX_CMD_A_BUF_SIZE_             0x000007FF
+#define TX_CMD_B_PKT_TAG_              0xFFFF0000
+#define TX_CMD_B_ADD_CRC_DISABLE_      0x00002000
+#define TX_CMD_B_DISABLE_PADDING_      0x00001000
+#define TX_CMD_B_PKT_BYTE_LENGTH_      0x000007FF
+
+#define RX_STATUS_FIFO                 0x40
+#define RX_STS_ES_                     0x00008000
+#define RX_STS_MCAST_                  0x00000400
+
+#define RX_STATUS_FIFO_PEEK            0x44
+
+#define TX_STATUS_FIFO                 0x48
+#define TX_STS_ES_                     0x00008000
+
+#define TX_STATUS_FIFO_PEEK            0x4C
+
+#define ID_REV                         0x50
+#define ID_REV_CHIP_ID_                        0xFFFF0000
+#define ID_REV_REV_ID_                 0x0000FFFF
+
+#define INT_CFG                                0x54
+#define INT_CFG_INT_DEAS_              0xFF000000
+#define INT_CFG_INT_DEAS_CLR_          0x00004000
+#define INT_CFG_INT_DEAS_STS_          0x00002000
+#define INT_CFG_IRQ_INT_               0x00001000
+#define INT_CFG_IRQ_EN_                        0x00000100
+#define INT_CFG_IRQ_POL_               0x00000010
+#define INT_CFG_IRQ_TYPE_              0x00000001
+
+#define INT_STS                                0x58
+#define INT_STS_SW_INT_                        0x80000000
+#define INT_STS_TXSTOP_INT_            0x02000000
+#define INT_STS_RXSTOP_INT_            0x01000000
+#define INT_STS_RXDFH_INT_             0x00800000
+#define INT_STS_RXDF_INT_              0x00400000
+#define INT_STS_TX_IOC_                        0x00200000
+#define INT_STS_RXD_INT_               0x00100000
+#define INT_STS_GPT_INT_               0x00080000
+#define INT_STS_PHY_INT_               0x00040000
+#define INT_STS_PME_INT_               0x00020000
+#define INT_STS_TXSO_                  0x00010000
+#define INT_STS_RWT_                   0x00008000
+#define INT_STS_RXE_                   0x00004000
+#define INT_STS_TXE_                   0x00002000
+#define INT_STS_TDFU_                  0x00000800
+#define INT_STS_TDFO_                  0x00000400
+#define INT_STS_TDFA_                  0x00000200
+#define INT_STS_TSFF_                  0x00000100
+#define INT_STS_TSFL_                  0x00000080
+#define INT_STS_RXDF_                  0x00000040
+#define INT_STS_RDFL_                  0x00000020
+#define INT_STS_RSFF_                  0x00000010
+#define INT_STS_RSFL_                  0x00000008
+#define INT_STS_GPIO2_INT_             0x00000004
+#define INT_STS_GPIO1_INT_             0x00000002
+#define INT_STS_GPIO0_INT_             0x00000001
+
+#define INT_EN                         0x5C
+#define INT_EN_SW_INT_EN_              0x80000000
+#define INT_EN_TXSTOP_INT_EN_          0x02000000
+#define INT_EN_RXSTOP_INT_EN_          0x01000000
+#define INT_EN_RXDFH_INT_EN_           0x00800000
+#define INT_EN_TIOC_INT_EN_            0x00200000
+#define INT_EN_RXD_INT_EN_             0x00100000
+#define INT_EN_GPT_INT_EN_             0x00080000
+#define INT_EN_PHY_INT_EN_             0x00040000
+#define INT_EN_PME_INT_EN_             0x00020000
+#define INT_EN_TXSO_EN_                        0x00010000
+#define INT_EN_RWT_EN_                 0x00008000
+#define INT_EN_RXE_EN_                 0x00004000
+#define INT_EN_TXE_EN_                 0x00002000
+#define INT_EN_TDFU_EN_                        0x00000800
+#define INT_EN_TDFO_EN_                        0x00000400
+#define INT_EN_TDFA_EN_                        0x00000200
+#define INT_EN_TSFF_EN_                        0x00000100
+#define INT_EN_TSFL_EN_                        0x00000080
+#define INT_EN_RXDF_EN_                        0x00000040
+#define INT_EN_RDFL_EN_                        0x00000020
+#define INT_EN_RSFF_EN_                        0x00000010
+#define INT_EN_RSFL_EN_                        0x00000008
+#define INT_EN_GPIO2_INT_              0x00000004
+#define INT_EN_GPIO1_INT_              0x00000002
+#define INT_EN_GPIO0_INT_              0x00000001
+
+#define BYTE_TEST                      0x64
+
+#define FIFO_INT                       0x68
+#define FIFO_INT_TX_AVAIL_LEVEL_       0xFF000000
+#define FIFO_INT_TX_STS_LEVEL_         0x00FF0000
+#define FIFO_INT_RX_AVAIL_LEVEL_       0x0000FF00
+#define FIFO_INT_RX_STS_LEVEL_         0x000000FF
+
+#define RX_CFG                         0x6C
+#define RX_CFG_RX_END_ALGN_            0xC0000000
+#define RX_CFG_RX_END_ALGN4_           0x00000000
+#define RX_CFG_RX_END_ALGN16_          0x40000000
+#define RX_CFG_RX_END_ALGN32_          0x80000000
+#define RX_CFG_RX_DMA_CNT_             0x0FFF0000
+#define RX_CFG_RX_DUMP_                        0x00008000
+#define RX_CFG_RXDOFF_                 0x00001F00
+
+#define TX_CFG                         0x70
+#define TX_CFG_TXS_DUMP_               0x00008000
+#define TX_CFG_TXD_DUMP_               0x00004000
+#define TX_CFG_TXSAO_                  0x00000004
+#define TX_CFG_TX_ON_                  0x00000002
+#define TX_CFG_STOP_TX_                        0x00000001
+
+#define HW_CFG                         0x74
+#define HW_CFG_TTM_                    0x00200000
+#define HW_CFG_SF_                     0x00100000
+#define HW_CFG_TX_FIF_SZ_              0x000F0000
+#define HW_CFG_TR_                     0x00003000
+#define HW_CFG_SRST_                   0x00000001
+
+/* only available on 115/117 */
+#define HW_CFG_PHY_CLK_SEL_            0x00000060
+#define HW_CFG_PHY_CLK_SEL_INT_PHY_    0x00000000
+#define HW_CFG_PHY_CLK_SEL_EXT_PHY_    0x00000020
+#define HW_CFG_PHY_CLK_SEL_CLK_DIS_    0x00000040
+#define HW_CFG_SMI_SEL_                        0x00000010
+#define HW_CFG_EXT_PHY_DET_            0x00000008
+#define HW_CFG_EXT_PHY_EN_             0x00000004
+#define HW_CFG_SRST_TO_                        0x00000002
+
+/* only available  on 116/118 */
+#define HW_CFG_32_16_BIT_MODE_         0x00000004
+
+#define RX_DP_CTRL                     0x78
+#define RX_DP_CTRL_RX_FFWD_            0x80000000
+
+#define RX_FIFO_INF                    0x7C
+#define RX_FIFO_INF_RXSUSED_           0x00FF0000
+#define RX_FIFO_INF_RXDUSED_           0x0000FFFF
+
+#define TX_FIFO_INF                    0x80
+#define TX_FIFO_INF_TSUSED_            0x00FF0000
+#define TX_FIFO_INF_TDFREE_            0x0000FFFF
+
+#define PMT_CTRL                       0x84
+#define PMT_CTRL_PM_MODE_              0x00003000
+#define PMT_CTRL_PM_MODE_D0_           0x00000000
+#define PMT_CTRL_PM_MODE_D1_           0x00001000
+#define PMT_CTRL_PM_MODE_D2_           0x00002000
+#define PMT_CTRL_PM_MODE_D3_           0x00003000
+#define PMT_CTRL_PHY_RST_              0x00000400
+#define PMT_CTRL_WOL_EN_               0x00000200
+#define PMT_CTRL_ED_EN_                        0x00000100
+#define PMT_CTRL_PME_TYPE_             0x00000040
+#define PMT_CTRL_WUPS_                 0x00000030
+#define PMT_CTRL_WUPS_NOWAKE_          0x00000000
+#define PMT_CTRL_WUPS_ED_              0x00000010
+#define PMT_CTRL_WUPS_WOL_             0x00000020
+#define PMT_CTRL_WUPS_MULTI_           0x00000030
+#define PMT_CTRL_PME_IND_              0x00000008
+#define PMT_CTRL_PME_POL_              0x00000004
+#define PMT_CTRL_PME_EN_               0x00000002
+#define PMT_CTRL_READY_                        0x00000001
+
+#define GPIO_CFG                       0x88
+#define GPIO_CFG_LED3_EN_              0x40000000
+#define GPIO_CFG_LED2_EN_              0x20000000
+#define GPIO_CFG_LED1_EN_              0x10000000
+#define GPIO_CFG_GPIO2_INT_POL_                0x04000000
+#define GPIO_CFG_GPIO1_INT_POL_                0x02000000
+#define GPIO_CFG_GPIO0_INT_POL_                0x01000000
+#define GPIO_CFG_EEPR_EN_              0x00700000
+#define GPIO_CFG_GPIOBUF2_             0x00040000
+#define GPIO_CFG_GPIOBUF1_             0x00020000
+#define GPIO_CFG_GPIOBUF0_             0x00010000
+#define GPIO_CFG_GPIODIR2_             0x00000400
+#define GPIO_CFG_GPIODIR1_             0x00000200
+#define GPIO_CFG_GPIODIR0_             0x00000100
+#define GPIO_CFG_GPIOD4_               0x00000020
+#define GPIO_CFG_GPIOD3_               0x00000010
+#define GPIO_CFG_GPIOD2_               0x00000004
+#define GPIO_CFG_GPIOD1_               0x00000002
+#define GPIO_CFG_GPIOD0_               0x00000001
+
+#define GPT_CFG                                0x8C
+#define GPT_CFG_TIMER_EN_              0x20000000
+#define GPT_CFG_GPT_LOAD_              0x0000FFFF
+
+#define GPT_CNT                                0x90
+#define GPT_CNT_GPT_CNT_               0x0000FFFF
+
+#define WORD_SWAP                      0x98
+
+#define FREE_RUN                       0x9C
+
+#define RX_DROP                                0xA0
+
+#define MAC_CSR_CMD                    0xA4
+#define MAC_CSR_CMD_CSR_BUSY_          0x80000000
+#define MAC_CSR_CMD_R_NOT_W_           0x40000000
+#define MAC_CSR_CMD_CSR_ADDR_          0x000000FF
+
+#define MAC_CSR_DATA                   0xA8
+
+#define AFC_CFG                                0xAC
+#define AFC_CFG_AFC_HI_                        0x00FF0000
+#define AFC_CFG_AFC_LO_                        0x0000FF00
+#define AFC_CFG_BACK_DUR_              0x000000F0
+#define AFC_CFG_FCMULT_                        0x00000008
+#define AFC_CFG_FCBRD_                 0x00000004
+#define AFC_CFG_FCADD_                 0x00000002
+#define AFC_CFG_FCANY_                 0x00000001
+
+#define E2P_CMD                                0xB0
+#define E2P_CMD_EPC_BUSY_              0x80000000
+#define E2P_CMD_EPC_CMD_               0x70000000
+#define E2P_CMD_EPC_CMD_READ_          0x00000000
+#define E2P_CMD_EPC_CMD_EWDS_          0x10000000
+#define E2P_CMD_EPC_CMD_EWEN_          0x20000000
+#define E2P_CMD_EPC_CMD_WRITE_         0x30000000
+#define E2P_CMD_EPC_CMD_WRAL_          0x40000000
+#define E2P_CMD_EPC_CMD_ERASE_         0x50000000
+#define E2P_CMD_EPC_CMD_ERAL_          0x60000000
+#define E2P_CMD_EPC_CMD_RELOAD_                0x70000000
+#define E2P_CMD_EPC_TIMEOUT_           0x00000200
+#define E2P_CMD_MAC_ADDR_LOADED_       0x00000100
+#define E2P_CMD_EPC_ADDR_              0x000000FF
+
+#define E2P_DATA                       0xB4
+#define E2P_DATA_EEPROM_DATA_          0x000000FF
+#define LAN_REGISTER_EXTENT            0x00000100
+
+/*
+ * MAC Control and Status Register (Indirect Address)
+ * Offset (through the MAC_CSR CMD and DATA port)
+ */
+#define MAC_CR                         0x01
+#define MAC_CR_RXALL_                  0x80000000
+#define MAC_CR_HBDIS_                  0x10000000
+#define MAC_CR_RCVOWN_                 0x00800000
+#define MAC_CR_LOOPBK_                 0x00200000
+#define MAC_CR_FDPX_                   0x00100000
+#define MAC_CR_MCPAS_                  0x00080000
+#define MAC_CR_PRMS_                   0x00040000
+#define MAC_CR_INVFILT_                        0x00020000
+#define MAC_CR_PASSBAD_                        0x00010000
+#define MAC_CR_HFILT_                  0x00008000
+#define MAC_CR_HPFILT_                 0x00002000
+#define MAC_CR_LCOLL_                  0x00001000
+#define MAC_CR_BCAST_                  0x00000800
+#define MAC_CR_DISRTY_                 0x00000400
+#define MAC_CR_PADSTR_                 0x00000100
+#define MAC_CR_BOLMT_MASK_             0x000000C0
+#define MAC_CR_DFCHK_                  0x00000020
+#define MAC_CR_TXEN_                   0x00000008
+#define MAC_CR_RXEN_                   0x00000004
+
+#define ADDRH                          0x02
+
+#define ADDRL                          0x03
+
+#define HASHH                          0x04
+
+#define HASHL                          0x05
+
+#define MII_ACC                                0x06
+#define MII_ACC_PHY_ADDR_              0x0000F800
+#define MII_ACC_MIIRINDA_              0x000007C0
+#define MII_ACC_MII_WRITE_             0x00000002
+#define MII_ACC_MII_BUSY_              0x00000001
+
+#define MII_DATA                       0x07
+
+#define FLOW                           0x08
+#define FLOW_FCPT_                     0xFFFF0000
+#define FLOW_FCPASS_                   0x00000004
+#define FLOW_FCEN_                     0x00000002
+#define FLOW_FCBSY_                    0x00000001
+
+#define VLAN1                          0x09
+
+#define VLAN2                          0x0A
+
+#define WUFF                           0x0B
+
+#define WUCSR                          0x0C
+#define WUCSR_GUE_                     0x00000200
+#define WUCSR_WUFR_                    0x00000040
+#define WUCSR_MPR_                     0x00000020
+#define WUCSR_WAKE_EN_                 0x00000004
+#define WUCSR_MPEN_                    0x00000002
+
+/*
+ * Phy definitions (vendor-specific)
+ */
+#define LAN9118_PHY_ID                 0x00C0001C
+
+#define MII_INTSTS                     0x1D
+
+#define MII_INTMSK                     0x1E
+#define PHY_INTMSK_AN_RCV_             (1 << 1)
+#define PHY_INTMSK_PDFAULT_            (1 << 2)
+#define PHY_INTMSK_AN_ACK_             (1 << 3)
+#define PHY_INTMSK_LNKDOWN_            (1 << 4)
+#define PHY_INTMSK_RFAULT_             (1 << 5)
+#define PHY_INTMSK_AN_COMP_            (1 << 6)
+#define PHY_INTMSK_ENERGYON_           (1 << 7)
+#define PHY_INTMSK_DEFAULT_            (PHY_INTMSK_ENERGYON_ | \
+                                        PHY_INTMSK_AN_COMP_ | \
+                                        PHY_INTMSK_RFAULT_ | \
+                                        PHY_INTMSK_LNKDOWN_)
+
+#define ADVERTISE_PAUSE_ALL            (ADVERTISE_PAUSE_CAP | \
+                                        ADVERTISE_PAUSE_ASYM)
+
+#define LPA_PAUSE_ALL                  (LPA_PAUSE_CAP | \
+                                        LPA_PAUSE_ASYM)
+
+#endif                         /* __SMSC911X_H__ */
diff --git a/include/linux/smsc911x.h b/include/linux/smsc911x.h
new file mode 100644 (file)
index 0000000..47c4ffd
--- /dev/null
@@ -0,0 +1,42 @@
+/***************************************************************************
+ *
+ * Copyright (C) 2004-2008 SMSC
+ * Copyright (C) 2005-2008 ARM
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that 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.
+ *
+ ***************************************************************************/
+#ifndef __LINUX_SMSC911X_H__
+#define __LINUX_SMSC911X_H__
+
+#include <linux/phy.h>
+
+/* platform_device configuration data, should be assigned to
+ * the platform_device's dev.platform_data */
+struct smsc911x_platform_config {
+       unsigned int irq_polarity;
+       unsigned int irq_type;
+       phy_interface_t phy_interface;
+};
+
+/* Constants for platform_device irq polarity configuration */
+#define SMSC911X_IRQ_POLARITY_ACTIVE_LOW       0
+#define SMSC911X_IRQ_POLARITY_ACTIVE_HIGH      1
+
+/* Constants for platform_device irq type configuration */
+#define SMSC911X_IRQ_TYPE_OPEN_DRAIN           0
+#define SMSC911X_IRQ_TYPE_PUSH_PULL            1
+
+#endif /* __LINUX_SMSC911X_H__ */