Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

2 files changed, 1837 insertions, 0 deletions

diff --git a/drivers/net/cris/Makefile b/drivers/net/cris/Makefile
new file mode 100644
index 00000000000..b4e8932227b
--- /dev/null
+++ b/drivers/net/cris/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ETRAX_ARCH_V10) += eth_v10.o
diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
new file mode 100644
index 00000000000..442670860fc
--- /dev/null
+++ b/drivers/net/cris/eth_v10.c
@@ -0,0 +1,1836 @@
+/* $Id: ethernet.c,v 1.31 2004/10/18 14:49:03 starvik Exp $
+ *
+ * e100net.c: A network driver for the ETRAX 100LX network controller.
+ *
+ * Copyright (c) 1998-2002 Axis Communications AB.
+ *
+ * The outline of this driver comes from skeleton.c.
+ *
+ * $Log: ethernet.c,v $
+ * Revision 1.31  2004/10/18 14:49:03  starvik
+ * Use RX interrupt as random source
+ *
+ * Revision 1.30  2004/09/29 10:44:04  starvik
+ * Enabed MAC-address output again
+ *
+ * Revision 1.29  2004/08/24 07:14:05  starvik
+ * Make use of generic MDIO interface and constants.
+ *
+ * Revision 1.28  2004/08/20 09:37:11  starvik
+ * Added support for Intel LXT972A. Creds to Randy Scarborough.
+ *
+ * Revision 1.27  2004/08/16 12:37:22  starvik
+ * Merge of Linux 2.6.8
+ *
+ * Revision 1.25  2004/06/21 10:29:57  starvik
+ * Merge of Linux 2.6.7
+ *
+ * Revision 1.23  2004/06/09 05:29:22  starvik
+ * Avoid any race where R_DMA_CH1_FIRST is NULL (may trigger cache bug).
+ *
+ * Revision 1.22  2004/05/14 07:58:03  starvik
+ * Merge of changes from 2.4
+ *
+ * Revision 1.20  2004/03/11 11:38:40  starvik
+ * Merge of Linux 2.6.4
+ *
+ * Revision 1.18  2003/12/03 13:45:46  starvik
+ * Use hardware pad for short packets to prevent information leakage.
+ *
+ * Revision 1.17  2003/07/04 08:27:37  starvik
+ * Merge of Linux 2.5.74
+ *
+ * Revision 1.16  2003/04/24 08:28:22  starvik
+ * New LED behaviour: LED off when no link
+ *
+ * Revision 1.15  2003/04/09 05:20:47  starvik
+ * Merge of Linux 2.5.67
+ *
+ * Revision 1.13  2003/03/06 16:11:01  henriken
+ * Off by one error in group address register setting.
+ *
+ * Revision 1.12  2003/02/27 17:24:19  starvik
+ * Corrected Rev to Revision
+ *
+ * Revision 1.11  2003/01/24 09:53:21  starvik
+ * Oops. Initialize GA to 0, not to 1
+ *
+ * Revision 1.10  2003/01/24 09:50:55  starvik
+ * Initialize GA_0 and GA_1 to 0 to avoid matching of unwanted packets
+ *
+ * Revision 1.9  2002/12/13 07:40:58  starvik
+ * Added basic ethtool interface
+ * Handled out of memory when allocating new buffers
+ *
+ * Revision 1.8  2002/12/11 13:13:57  starvik
+ * Added arch/ to v10 specific includes
+ * Added fix from Linux 2.4 in serial.c (flush_to_flip_buffer)
+ *
+ * Revision 1.7  2002/11/26 09:41:42  starvik
+ * Added e100_set_config (standard interface to set media type)
+ * Added protection against preemptive scheduling
+ * Added standard MII ioctls
+ *
+ * Revision 1.6  2002/11/21 07:18:18  starvik
+ * Timers must be initialized in 2.5.48
+ *
+ * Revision 1.5  2002/11/20 11:56:11  starvik
+ * Merge of Linux 2.5.48
+ *
+ * Revision 1.4  2002/11/18 07:26:46  starvik
+ * Linux 2.5 port of latest Linux 2.4 ethernet driver
+ *
+ * Revision 1.33  2002/10/02 20:16:17  hp
+ * SETF, SETS: Use underscored IO_x_ macros rather than incorrect token concatenation
+ *
+ * Revision 1.32  2002/09/16 06:05:58  starvik
+ * Align memory returned by dev_alloc_skb
+ * Moved handling of sent packets to interrupt to avoid reference counting problem
+ *
+ * Revision 1.31  2002/09/10 13:28:23  larsv
+ * Return -EINVAL for unknown ioctls to avoid confusing tools that tests
+ * for supported functionality by issuing special ioctls, i.e. wireless
+ * extensions.
+ *
+ * Revision 1.30  2002/05/07 18:50:08  johana
+ * Correct spelling in comments.
+ *
+ * Revision 1.29  2002/05/06 05:38:49  starvik
+ * Performance improvements:
+ *    Large packets are not copied (breakpoint set to 256 bytes)
+ *    The cache bug workaround is delayed until half of the receive list
+ *      has been used
+ *    Added transmit list
+ *    Transmit interrupts are only enabled when transmit queue is full
+ *
+ * Revision 1.28.2.1  2002/04/30 08:15:51  starvik
+ * Performance improvements:
+ *   Large packets are not copied (breakpoint set to 256 bytes)
+ *   The cache bug workaround is delayed until half of the receive list
+ *     has been used.
+ *   Added transmit list
+ *   Transmit interrupts are only enabled when transmit queue is full
+ *
+ * Revision 1.28  2002/04/22 11:47:21  johana
+ * Fix according to 2.4.19-pre7. time_after/time_before and
+ * missing end of comment.
+ * The patch has a typo for ethernet.c in e100_clear_network_leds(),
+ *  that is fixed here.
+ *
+ * Revision 1.27  2002/04/12 11:55:11  bjornw
+ * Added TODO
+ *
+ * Revision 1.26  2002/03/15 17:11:02  bjornw
+ * Use prepare_rx_descriptor after the CPU has touched the receiving descs
+ *
+ * Revision 1.25  2002/03/08 13:07:53  bjornw
+ * Unnecessary spinlock removed
+ *
+ * Revision 1.24  2002/02/20 12:57:43  fredriks
+ * Replaced MIN() with min().
+ *
+ * Revision 1.23  2002/02/20 10:58:14  fredriks
+ * Strip the Ethernet checksum (4 bytes) before forwarding a frame to upper layers.
+ *
+ * Revision 1.22  2002/01/30 07:48:22  matsfg
+ * Initiate R_NETWORK_TR_CTRL
+ *
+ * Revision 1.21  2001/11/23 11:54:49  starvik
+ * Added IFF_PROMISC and IFF_ALLMULTI handling in set_multicast_list
+ * Removed compiler warnings
+ *
+ * Revision 1.20  2001/11/12 19:26:00  pkj
+ * * Corrected e100_negotiate() to not assign half to current_duplex when
+ *   it was supposed to compare them...
+ * * Cleaned up failure handling in e100_open().
+ * * Fixed compiler warnings.
+ *
+ * Revision 1.19  2001/11/09 07:43:09  starvik
+ * Added full duplex support
+ * Added ioctl to set speed and duplex
+ * Clear LED timer only runs when LED is lit
+ *
+ * Revision 1.18  2001/10/03 14:40:43  jonashg
+ * Update rx_bytes counter.
+ *
+ * Revision 1.17  2001/06/11 12:43:46  olof
+ * Modified defines for network LED behavior
+ *
+ * Revision 1.16  2001/05/30 06:12:46  markusl
+ * TxDesc.next should not be set to NULL
+ *
+ * Revision 1.15  2001/05/29 10:27:04  markusl
+ * Updated after review remarks:
+ * +Use IO_EXTRACT
+ * +Handle underrun
+ *
+ * Revision 1.14  2001/05/29 09:20:14  jonashg
+ * Use driver name on printk output so one can tell which driver that complains.
+ *
+ * Revision 1.13  2001/05/09 12:35:59  johana
+ * Use DMA_NBR and IRQ_NBR defines from dma.h and irq.h
+ *
+ * Revision 1.12  2001/04/05 11:43:11  tobiasa
+ * Check dev before panic.
+ *
+ * Revision 1.11  2001/04/04 11:21:05  markusl
+ * Updated according to review remarks
+ *
+ * Revision 1.10  2001/03/26 16:03:06  bjornw
+ * Needs linux/config.h
+ *
+ * Revision 1.9  2001/03/19 14:47:48  pkj
+ * * Make sure there is always a pause after the network LEDs are
+ *   changed so they will not look constantly lit during heavy traffic.
+ * * Always use HZ when setting times relative to jiffies.
+ * * Use LED_NETWORK_SET() when setting the network LEDs.
+ *
+ * Revision 1.8  2001/02/27 13:52:48  bjornw
+ * malloc.h -> slab.h
+ *
+ * Revision 1.7  2001/02/23 13:46:38  bjornw
+ * Spellling check
+ *
+ * Revision 1.6  2001/01/26 15:21:04  starvik
+ * Don't disable interrupts while reading MDIO registers (MDIO is slow)
+ * Corrected promiscuous mode
+ * Improved deallocation of IRQs ("ifconfig eth0 down" now works)
+ *
+ * Revision 1.5  2000/11/29 17:22:22  bjornw
+ * Get rid of the udword types legacy stuff
+ *
+ * Revision 1.4  2000/11/22 16:36:09  bjornw
+ * Please marketing by using the correct case when spelling Etrax.
+ *
+ * Revision 1.3  2000/11/21 16:43:04  bjornw
+ * Minor short->int change
+ *
+ * Revision 1.2  2000/11/08 14:27:57  bjornw
+ * 2.4 port
+ *
+ * Revision 1.1  2000/11/06 13:56:00  bjornw
+ * Verbatim copy of the 1.24 version of e100net.c from elinux
+ *
+ * Revision 1.24  2000/10/04 15:55:23  bjornw
+ * * Use virt_to_phys etc. for DMA addresses
+ * * Removed bogus CHECKSUM_UNNECESSARY
+ *
+ *
+ */
+
+#include <linux/config.h>
+
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+
+#include <linux/if.h>
+#include <linux/mii.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/ethtool.h>
+
+#include <asm/arch/svinto.h>/* DMA and register descriptions */
+#include <asm/io.h>         /* LED_* I/O functions */
+#include <asm/irq.h>
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/bitops.h>
+#include <asm/ethernet.h>
+#include <asm/cache.h>
+
+//#define ETHDEBUG
+#define D(x)
+
+/*
+ * The name of the card. Is used for messages and in the requests for
+ * io regions, irqs and dma channels
+ */
+
+static const char* cardname = "ETRAX 100LX built-in ethernet controller";
+
+/* A default ethernet address. Highlevel SW will set the real one later */
+
+static struct sockaddr default_mac = {
+	0,
+	{ 0x00, 0x40, 0x8C, 0xCD, 0x00, 0x00 }
+};
+
+/* Information that need to be kept for each board. */
+struct net_local {
+	struct net_device_stats stats;
+	struct mii_if_info mii_if;
+
+	/* Tx control lock.  This protects the transmit buffer ring
+	 * state along with the "tx full" state of the driver.  This
+	 * means all netif_queue flow control actions are protected
+	 * by this lock as well.
+	 */
+	spinlock_t lock;
+};
+
+typedef struct etrax_eth_descr
+{
+	etrax_dma_descr descr;
+	struct sk_buff* skb;
+} etrax_eth_descr;
+
+/* Some transceivers requires special handling */
+struct transceiver_ops
+{
+	unsigned int oui;
+	void (*check_speed)(struct net_device* dev);
+	void (*check_duplex)(struct net_device* dev);
+};
+
+struct transceiver_ops* transceiver;
+
+/* Duplex settings */
+enum duplex
+{
+	half,
+	full,
+	autoneg
+};
+
+/* Dma descriptors etc. */
+
+#define MAX_MEDIA_DATA_SIZE 1518
+
+#define MIN_PACKET_LEN      46
+#define ETHER_HEAD_LEN      14
+
+/*
+** MDIO constants.
+*/
+#define MDIO_START                          0x1
+#define MDIO_READ                           0x2
+#define MDIO_WRITE                          0x1
+#define MDIO_PREAMBLE              0xfffffffful
+
+/* Broadcom specific */
+#define MDIO_AUX_CTRL_STATUS_REG           0x18
+#define MDIO_BC_FULL_DUPLEX_IND             0x1
+#define MDIO_BC_SPEED                       0x2
+
+/* TDK specific */
+#define MDIO_TDK_DIAGNOSTIC_REG              18
+#define MDIO_TDK_DIAGNOSTIC_RATE          0x400
+#define MDIO_TDK_DIAGNOSTIC_DPLX          0x800
+
+/*Intel LXT972A specific*/
+#define MDIO_INT_STATUS_REG_2			0x0011
+#define MDIO_INT_FULL_DUPLEX_IND		( 1 << 9 )
+#define MDIO_INT_SPEED				( 1 << 14 )
+
+/* Network flash constants */
+#define NET_FLASH_TIME                  (HZ/50) /* 20 ms */
+#define NET_FLASH_PAUSE                (HZ/100) /* 10 ms */
+#define NET_LINK_UP_CHECK_INTERVAL       (2*HZ) /* 2 s   */
+#define NET_DUPLEX_CHECK_INTERVAL        (2*HZ) /* 2 s   */
+
+#define NO_NETWORK_ACTIVITY 0
+#define NETWORK_ACTIVITY    1
+
+#define NBR_OF_RX_DESC     64
+#define NBR_OF_TX_DESC     256
+
+/* Large packets are sent directly to upper layers while small packets are */
+/* copied (to reduce memory waste). The following constant decides the breakpoint */
+#define RX_COPYBREAK 256
+
+/* Due to a chip bug we need to flush the cache when descriptors are returned */
+/* to the DMA. To decrease performance impact we return descriptors in chunks. */
+/* The following constant determines the number of descriptors to return. */
+#define RX_QUEUE_THRESHOLD  NBR_OF_RX_DESC/2
+
+#define GET_BIT(bit,val)   (((val) >> (bit)) & 0x01)
+
+/* Define some macros to access ETRAX 100 registers */
+#define SETF(var, reg, field, val) var = (var & ~IO_MASK_(reg##_, field##_)) | \
+					  IO_FIELD_(reg##_, field##_, val)
+#define SETS(var, reg, field, val) var = (var & ~IO_MASK_(reg##_, field##_)) | \
+					  IO_STATE_(reg##_, field##_, _##val)
+
+static etrax_eth_descr *myNextRxDesc;  /* Points to the next descriptor to
+                                          to be processed */
+static etrax_eth_descr *myLastRxDesc;  /* The last processed descriptor */
+static etrax_eth_descr *myPrevRxDesc;  /* The descriptor right before myNextRxDesc */
+
+static etrax_eth_descr RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned(32)));
+
+static etrax_eth_descr* myFirstTxDesc; /* First packet not yet sent */
+static etrax_eth_descr* myLastTxDesc;  /* End of send queue */
+static etrax_eth_descr* myNextTxDesc;  /* Next descriptor to use */
+static etrax_eth_descr TxDescList[NBR_OF_TX_DESC] __attribute__ ((aligned(32)));
+
+static unsigned int network_rec_config_shadow = 0;
+static unsigned int mdio_phy_addr; /* Transciever address */
+
+static unsigned int network_tr_ctrl_shadow = 0;
+
+/* Network speed indication. */
+static struct timer_list speed_timer = TIMER_INITIALIZER(NULL, 0, 0);
+static struct timer_list clear_led_timer = TIMER_INITIALIZER(NULL, 0, 0);
+static int current_speed; /* Speed read from transceiver */
+static int current_speed_selection; /* Speed selected by user */
+static unsigned long led_next_time;
+static int led_active;
+static int rx_queue_len;
+
+/* Duplex */
+static struct timer_list duplex_timer = TIMER_INITIALIZER(NULL, 0, 0);
+static int full_duplex;
+static enum duplex current_duplex;
+
+/* Index to functions, as function prototypes. */
+
+static int etrax_ethernet_init(void);
+
+static int e100_open(struct net_device *dev);
+static int e100_set_mac_address(struct net_device *dev, void *addr);
+static int e100_send_packet(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t e100rxtx_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t e100nw_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static void e100_rx(struct net_device *dev);
+static int e100_close(struct net_device *dev);
+static int e100_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
+static int e100_ethtool_ioctl(struct net_device* dev, struct ifreq *ifr);
+static int e100_set_config(struct net_device* dev, struct ifmap* map);
+static void e100_tx_timeout(struct net_device *dev);
+static struct net_device_stats *e100_get_stats(struct net_device *dev);
+static void set_multicast_list(struct net_device *dev);
+static void e100_hardware_send_packet(char *buf, int length);
+static void update_rx_stats(struct net_device_stats *);
+static void update_tx_stats(struct net_device_stats *);
+static int e100_probe_transceiver(struct net_device* dev);
+
+static void e100_check_speed(unsigned long priv);
+static void e100_set_speed(struct net_device* dev, unsigned long speed);
+static void e100_check_duplex(unsigned long priv);
+static void e100_set_duplex(struct net_device* dev, enum duplex);
+static void e100_negotiate(struct net_device* dev);
+
+static int e100_get_mdio_reg(struct net_device *dev, int phy_id, int location);
+static void e100_set_mdio_reg(struct net_device *dev, int phy_id, int location, int value);
+
+static void e100_send_mdio_cmd(unsigned short cmd, int write_cmd);
+static void e100_send_mdio_bit(unsigned char bit);
+static unsigned char e100_receive_mdio_bit(void);
+static void e100_reset_transceiver(struct net_device* net);
+
+static void e100_clear_network_leds(unsigned long dummy);
+static void e100_set_network_leds(int active);
+
+static void broadcom_check_speed(struct net_device* dev);
+static void broadcom_check_duplex(struct net_device* dev);
+static void tdk_check_speed(struct net_device* dev);
+static void tdk_check_duplex(struct net_device* dev);
+static void intel_check_speed(struct net_device* dev);
+static void intel_check_duplex(struct net_device* dev);
+static void generic_check_speed(struct net_device* dev);
+static void generic_check_duplex(struct net_device* dev);
+
+struct transceiver_ops transceivers[] =
+{
+	{0x1018, broadcom_check_speed, broadcom_check_duplex},  /* Broadcom */
+	{0xC039, tdk_check_speed, tdk_check_duplex},            /* TDK 2120 */
+	{0x039C, tdk_check_speed, tdk_check_duplex},            /* TDK 2120C */
+        {0x04de, intel_check_speed, intel_check_duplex},     	/* Intel LXT972A*/
+	{0x0000, generic_check_speed, generic_check_duplex}     /* Generic, must be last */
+};
+
+#define tx_done(dev) (*R_DMA_CH0_CMD == 0)
+
+/*
+ * Check for a network adaptor of this type, and return '0' if one exists.
+ * If dev->base_addr == 0, probe all likely locations.
+ * If dev->base_addr == 1, always return failure.
+ * If dev->base_addr == 2, allocate space for the device and return success
+ * (detachable devices only).
+ */
+
+static int __init
+etrax_ethernet_init(void)
+{
+	struct net_device *dev;
+        struct net_local* np;
+	int i, err;
+
+	printk(KERN_INFO
+	       "ETRAX 100LX 10/100MBit ethernet v2.0 (c) 2000-2003 Axis Communications AB\n");
+
+	dev = alloc_etherdev(sizeof(struct net_local));
+	np = dev->priv;
+
+	if (!dev)
+		return -ENOMEM;
+
+	dev->base_addr = (unsigned int)R_NETWORK_SA_0; /* just to have something to show */
+
+	/* now setup our etrax specific stuff */
+
+	dev->irq = NETWORK_DMA_RX_IRQ_NBR; /* we really use DMATX as well... */
+	dev->dma = NETWORK_RX_DMA_NBR;
+
+	/* fill in our handlers so the network layer can talk to us in the future */
+
+	dev->open               = e100_open;
+	dev->hard_start_xmit    = e100_send_packet;
+	dev->stop               = e100_close;
+	dev->get_stats          = e100_get_stats;
+	dev->set_multicast_list = set_multicast_list;
+	dev->set_mac_address    = e100_set_mac_address;
+	dev->do_ioctl           = e100_ioctl;
+	dev->set_config		= e100_set_config;
+	dev->tx_timeout         = e100_tx_timeout;
+
+	/* Initialise the list of Etrax DMA-descriptors */
+
+	/* Initialise receive descriptors */
+
+	for (i = 0; i < NBR_OF_RX_DESC; i++) {
+		/* Allocate two extra cachelines to make sure that buffer used by DMA
+		 * does not share cacheline with any other data (to avoid cache bug)
+		 */
+		RxDescList[i].skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE + 2 * L1_CACHE_BYTES);
+		RxDescList[i].descr.ctrl   = 0;
+		RxDescList[i].descr.sw_len = MAX_MEDIA_DATA_SIZE;
+		RxDescList[i].descr.next   = virt_to_phys(&RxDescList[i + 1]);
+		RxDescList[i].descr.buf    = L1_CACHE_ALIGN(virt_to_phys(RxDescList[i].skb->data));
+		RxDescList[i].descr.status = 0;
+		RxDescList[i].descr.hw_len = 0;
+		prepare_rx_descriptor(&RxDescList[i].descr);
+	}
+
+	RxDescList[NBR_OF_RX_DESC - 1].descr.ctrl   = d_eol;
+	RxDescList[NBR_OF_RX_DESC - 1].descr.next   = virt_to_phys(&RxDescList[0]);
+	rx_queue_len = 0;
+
+	/* Initialize transmit descriptors */
+	for (i = 0; i < NBR_OF_TX_DESC; i++) {
+		TxDescList[i].descr.ctrl   = 0;
+		TxDescList[i].descr.sw_len = 0;
+		TxDescList[i].descr.next   = virt_to_phys(&TxDescList[i + 1].descr);
+		TxDescList[i].descr.buf    = 0;
+		TxDescList[i].descr.status = 0;
+		TxDescList[i].descr.hw_len = 0;
+		TxDescList[i].skb = 0;
+	}
+
+	TxDescList[NBR_OF_TX_DESC - 1].descr.ctrl   = d_eol;
+	TxDescList[NBR_OF_TX_DESC - 1].descr.next   = virt_to_phys(&TxDescList[0].descr);
+
+	/* Initialise initial pointers */
+
+	myNextRxDesc  = &RxDescList[0];
+	myLastRxDesc  = &RxDescList[NBR_OF_RX_DESC - 1];
+	myPrevRxDesc  = &RxDescList[NBR_OF_RX_DESC - 1];
+	myFirstTxDesc = &TxDescList[0];
+	myNextTxDesc  = &TxDescList[0];
+	myLastTxDesc  = &TxDescList[NBR_OF_TX_DESC - 1];
+
+	/* Register device */
+	err = register_netdev(dev);
+	if (err) {
+		free_netdev(dev);
+		return err;
+	}
+
+	/* set the default MAC address */
+
+	e100_set_mac_address(dev, &default_mac);
+
+	/* Initialize speed indicator stuff. */
+
+	current_speed = 10;
+	current_speed_selection = 0; /* Auto */
+	speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
+        duplex_timer.data = (unsigned long)dev;
+	speed_timer.function = e100_check_speed;
+
+	clear_led_timer.function = e100_clear_network_leds;
+
+	full_duplex = 0;
+	current_duplex = autoneg;
+	duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
+        duplex_timer.data = (unsigned long)dev;
+	duplex_timer.function = e100_check_duplex;
+
+        /* Initialize mii interface */
+	np->mii_if.phy_id = mdio_phy_addr;
+	np->mii_if.phy_id_mask = 0x1f;
+	np->mii_if.reg_num_mask = 0x1f;
+	np->mii_if.dev = dev;
+	np->mii_if.mdio_read = e100_get_mdio_reg;
+	np->mii_if.mdio_write = e100_set_mdio_reg;
+
+	/* Initialize group address registers to make sure that no */
+	/* unwanted addresses are matched */
+	*R_NETWORK_GA_0 = 0x00000000;
+	*R_NETWORK_GA_1 = 0x00000000;
+	return 0;
+}
+
+/* set MAC address of the interface. called from the core after a
+ * SIOCSIFADDR ioctl, and from the bootup above.
+ */
+
+static int
+e100_set_mac_address(struct net_device *dev, void *p)
+{
+	struct net_local *np = (struct net_local *)dev->priv;
+	struct sockaddr *addr = p;
+	int i;
+
+	spin_lock(&np->lock); /* preemption protection */
+
+	/* remember it */
+
+	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+	/* Write it to the hardware.
+	 * Note the way the address is wrapped:
+	 * *R_NETWORK_SA_0 = a0_0 | (a0_1 << 8) | (a0_2 << 16) | (a0_3 << 24);
+	 * *R_NETWORK_SA_1 = a0_4 | (a0_5 << 8);
+	 */
+
+	*R_NETWORK_SA_0 = dev->dev_addr[0] | (dev->dev_addr[1] << 8) |
+		(dev->dev_addr[2] << 16) | (dev->dev_addr[3] << 24);
+	*R_NETWORK_SA_1 = dev->dev_addr[4] | (dev->dev_addr[5] << 8);
+	*R_NETWORK_SA_2 = 0;
+
+	/* show it in the log as well */
+
+	printk(KERN_INFO "%s: changed MAC to ", dev->name);
+
+	for (i = 0; i < 5; i++)
+		printk("%02X:", dev->dev_addr[i]);
+
+	printk("%02X\n", dev->dev_addr[i]);
+
+	spin_unlock(&np->lock);
+
+	return 0;
+}
+
+/*
+ * Open/initialize the board. This is called (in the current kernel)
+ * sometime after booting when the 'ifconfig' program is run.
+ *
+ * This routine should set everything up anew at each open, even
+ * registers that "should" only need to be set once at boot, so that
+ * there is non-reboot way to recover if something goes wrong.
+ */
+
+static int
+e100_open(struct net_device *dev)
+{
+	unsigned long flags;
+
+	/* enable the MDIO output pin */
+
+	*R_NETWORK_MGM_CTRL = IO_STATE(R_NETWORK_MGM_CTRL, mdoe, enable);
+
+	*R_IRQ_MASK0_CLR =
+		IO_STATE(R_IRQ_MASK0_CLR, overrun, clr) |
+		IO_STATE(R_IRQ_MASK0_CLR, underrun, clr) |
+		IO_STATE(R_IRQ_MASK0_CLR, excessive_col, clr);
+
+	/* clear dma0 and 1 eop and descr irq masks */
+	*R_IRQ_MASK2_CLR =
+		IO_STATE(R_IRQ_MASK2_CLR, dma0_descr, clr) |
+		IO_STATE(R_IRQ_MASK2_CLR, dma0_eop, clr) |
+		IO_STATE(R_IRQ_MASK2_CLR, dma1_descr, clr) |
+		IO_STATE(R_IRQ_MASK2_CLR, dma1_eop, clr);
+
+	/* Reset and wait for the DMA channels */
+
+	RESET_DMA(NETWORK_TX_DMA_NBR);
+	RESET_DMA(NETWORK_RX_DMA_NBR);
+	WAIT_DMA(NETWORK_TX_DMA_NBR);
+	WAIT_DMA(NETWORK_RX_DMA_NBR);
+
+	/* Initialise the etrax network controller */
+
+	/* allocate the irq corresponding to the receiving DMA */
+
+	if (request_irq(NETWORK_DMA_RX_IRQ_NBR, e100rxtx_interrupt,
+			SA_SAMPLE_RANDOM, cardname, (void *)dev)) {
+		goto grace_exit0;
+	}
+
+	/* allocate the irq corresponding to the transmitting DMA */
+
+	if (request_irq(NETWORK_DMA_TX_IRQ_NBR, e100rxtx_interrupt, 0,
+			cardname, (void *)dev)) {
+		goto grace_exit1;
+	}
+
+	/* allocate the irq corresponding to the network errors etc */
+
+	if (request_irq(NETWORK_STATUS_IRQ_NBR, e100nw_interrupt, 0,
+			cardname, (void *)dev)) {
+		goto grace_exit2;
+	}
+
+	/* give the HW an idea of what MAC address we want */
+
+	*R_NETWORK_SA_0 = dev->dev_addr[0] | (dev->dev_addr[1] << 8) |
+		(dev->dev_addr[2] << 16) | (dev->dev_addr[3] << 24);
+	*R_NETWORK_SA_1 = dev->dev_addr[4] | (dev->dev_addr[5] << 8);
+	*R_NETWORK_SA_2 = 0;
+
+#if 0
+	/* use promiscuous mode for testing */
+	*R_NETWORK_GA_0 = 0xffffffff;
+	*R_NETWORK_GA_1 = 0xffffffff;
+
+	*R_NETWORK_REC_CONFIG = 0xd; /* broadcast rec, individ. rec, ma0 enabled */
+#else
+	SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, broadcast, receive);
+	SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, ma0, enable);
+	SETF(network_rec_config_shadow, R_NETWORK_REC_CONFIG, duplex, full_duplex);
+	*R_NETWORK_REC_CONFIG = network_rec_config_shadow;
+#endif
+
+	*R_NETWORK_GEN_CONFIG =
+		IO_STATE(R_NETWORK_GEN_CONFIG, phy,    mii_clk) |
+		IO_STATE(R_NETWORK_GEN_CONFIG, enable, on);
+
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, clr_error, clr);
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, delay, none);
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, cancel, dont);
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, cd, enable);
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, retry, enable);
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, pad, enable);
+	SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, crc, enable);
+	*R_NETWORK_TR_CTRL = network_tr_ctrl_shadow;
+
+	save_flags(flags);
+	cli();
+
+	/* enable the irq's for ethernet DMA */
+
+	*R_IRQ_MASK2_SET =
+		IO_STATE(R_IRQ_MASK2_SET, dma0_eop, set) |
+		IO_STATE(R_IRQ_MASK2_SET, dma1_eop, set);
+
+	*R_IRQ_MASK0_SET =
+		IO_STATE(R_IRQ_MASK0_SET, overrun,       set) |
+		IO_STATE(R_IRQ_MASK0_SET, underrun,      set) |
+		IO_STATE(R_IRQ_MASK0_SET, excessive_col, set);
+
+	/* make sure the irqs are cleared */
+
+	*R_DMA_CH0_CLR_INTR = IO_STATE(R_DMA_CH0_CLR_INTR, clr_eop, do);
+	*R_DMA_CH1_CLR_INTR = IO_STATE(R_DMA_CH1_CLR_INTR, clr_eop, do);
+
+	/* make sure the rec and transmit error counters are cleared */
+
+	(void)*R_REC_COUNTERS;  /* dummy read */
+	(void)*R_TR_COUNTERS;   /* dummy read */
+
+	/* start the receiving DMA channel so we can receive packets from now on */
+
+	*R_DMA_CH1_FIRST = virt_to_phys(myNextRxDesc);
+	*R_DMA_CH1_CMD = IO_STATE(R_DMA_CH1_CMD, cmd, start);
+
+	/* Set up transmit DMA channel so it can be restarted later */
+
+	*R_DMA_CH0_FIRST = 0;
+	*R_DMA_CH0_DESCR = virt_to_phys(myLastTxDesc);
+
+	restore_flags(flags);
+
+	/* Probe for transceiver */
+	if (e100_probe_transceiver(dev))
+		goto grace_exit3;
+
+	/* Start duplex/speed timers */
+	add_timer(&speed_timer);
+	add_timer(&duplex_timer);
+
+	/* We are now ready to accept transmit requeusts from
+	 * the queueing layer of the networking.
+	 */
+	netif_start_queue(dev);
+
+	return 0;
+
+grace_exit3:
+	free_irq(NETWORK_STATUS_IRQ_NBR, (void *)dev);
+grace_exit2:
+	free_irq(NETWORK_DMA_TX_IRQ_NBR, (void *)dev);
+grace_exit1:
+	free_irq(NETWORK_DMA_RX_IRQ_NBR, (void *)dev);
+grace_exit0:
+	return -EAGAIN;
+}
+
+
+static void
+generic_check_speed(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+	if ((data & ADVERTISE_100FULL) ||
+	    (data & ADVERTISE_100HALF))
+		current_speed = 100;
+	else
+		current_speed = 10;
+}
+
+static void
+tdk_check_speed(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_TDK_DIAGNOSTIC_REG);
+	current_speed = (data & MDIO_TDK_DIAGNOSTIC_RATE ? 100 : 10);
+}
+
+static void
+broadcom_check_speed(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_AUX_CTRL_STATUS_REG);
+	current_speed = (data & MDIO_BC_SPEED ? 100 : 10);
+}
+
+static void
+intel_check_speed(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_INT_STATUS_REG_2);
+	current_speed = (data & MDIO_INT_SPEED ? 100 : 10);
+}
+
+static void
+e100_check_speed(unsigned long priv)
+{
+	struct net_device* dev = (struct net_device*)priv;
+	static int led_initiated = 0;
+	unsigned long data;
+	int old_speed = current_speed;
+
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMSR);
+	if (!(data & BMSR_LSTATUS)) {
+		current_speed = 0;
+	} else {
+		transceiver->check_speed(dev);
+	}
+
+	if ((old_speed != current_speed) || !led_initiated) {
+		led_initiated = 1;
+		e100_set_network_leds(NO_NETWORK_ACTIVITY);
+	}
+
+	/* Reinitialize the timer. */
+	speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
+	add_timer(&speed_timer);
+}
+
+static void
+e100_negotiate(struct net_device* dev)
+{
+	unsigned short data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+
+	/* Discard old speed and duplex settings */
+	data &= ~(ADVERTISE_100HALF | ADVERTISE_100FULL |
+	          ADVERTISE_10HALF | ADVERTISE_10FULL);
+
+	switch (current_speed_selection) {
+		case 10 :
+			if (current_duplex == full)
+				data |= ADVERTISE_10FULL;
+			else if (current_duplex == half)
+				data |= ADVERTISE_10HALF;
+			else
+				data |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+			break;
+
+		case 100 :
+			 if (current_duplex == full)
+				data |= ADVERTISE_100FULL;
+			else if (current_duplex == half)
+				data |= ADVERTISE_100HALF;
+			else
+				data |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+			break;
+
+		case 0 : /* Auto */
+			 if (current_duplex == full)
+				data |= ADVERTISE_100FULL | ADVERTISE_10FULL;
+			else if (current_duplex == half)
+				data |= ADVERTISE_100HALF | ADVERTISE_10HALF;
+			else
+				data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
+				  ADVERTISE_100HALF | ADVERTISE_100FULL;
+			break;
+
+		default : /* assume autoneg speed and duplex */
+			data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
+				  ADVERTISE_100HALF | ADVERTISE_100FULL;
+	}
+
+	e100_set_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE, data);
+
+	/* Renegotiate with link partner */
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMCR);
+	data |= BMCR_ANENABLE | BMCR_ANRESTART;
+
+	e100_set_mdio_reg(dev, mdio_phy_addr, MII_BMCR, data);
+}
+
+static void
+e100_set_speed(struct net_device* dev, unsigned long speed)
+{
+	if (speed != current_speed_selection) {
+		current_speed_selection = speed;
+		e100_negotiate(dev);
+	}
+}
+
+static void
+e100_check_duplex(unsigned long priv)
+{
+	struct net_device *dev = (struct net_device *)priv;
+	struct net_local *np = (struct net_local *)dev->priv;
+	int old_duplex = full_duplex;
+	transceiver->check_duplex(dev);
+	if (old_duplex != full_duplex) {
+		/* Duplex changed */
+		SETF(network_rec_config_shadow, R_NETWORK_REC_CONFIG, duplex, full_duplex);
+		*R_NETWORK_REC_CONFIG = network_rec_config_shadow;
+	}
+
+	/* Reinitialize the timer. */
+	duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
+	add_timer(&duplex_timer);
+	np->mii_if.full_duplex = full_duplex;
+}
+
+static void
+generic_check_duplex(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+	if ((data & ADVERTISE_10FULL) ||
+	    (data & ADVERTISE_100FULL))
+		full_duplex = 1;
+	else
+		full_duplex = 0;
+}
+
+static void
+tdk_check_duplex(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_TDK_DIAGNOSTIC_REG);
+	full_duplex = (data & MDIO_TDK_DIAGNOSTIC_DPLX) ? 1 : 0;
+}
+
+static void
+broadcom_check_duplex(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_AUX_CTRL_STATUS_REG);
+	full_duplex = (data & MDIO_BC_FULL_DUPLEX_IND) ? 1 : 0;
+}
+
+static void
+intel_check_duplex(struct net_device* dev)
+{
+	unsigned long data;
+	data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_INT_STATUS_REG_2);
+	full_duplex = (data & MDIO_INT_FULL_DUPLEX_IND) ? 1 : 0;
+}
+
+static void
+e100_set_duplex(struct net_device* dev, enum duplex new_duplex)
+{
+	if (new_duplex != current_duplex) {
+		current_duplex = new_duplex;
+		e100_negotiate(dev);
+	}
+}
+
+static int
+e100_probe_transceiver(struct net_device* dev)
+{
+	unsigned int phyid_high;
+	unsigned int phyid_low;
+	unsigned int oui;
+	struct transceiver_ops* ops = NULL;
+
+	/* Probe MDIO physical address */
+	for (mdio_phy_addr = 0; mdio_phy_addr <= 31; mdio_phy_addr++) {
+		if (e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMSR) != 0xffff)
+			break;
+	}
+	if (mdio_phy_addr == 32)
+		 return -ENODEV;
+
+	/* Get manufacturer */
+	phyid_high = e100_get_mdio_reg(dev, mdio_phy_addr, MII_PHYSID1);
+	phyid_low = e100_get_mdio_reg(dev, mdio_phy_addr, MII_PHYSID2);
+	oui = (phyid_high << 6) | (phyid_low >> 10);
+
+	for (ops = &transceivers[0]; ops->oui; ops++) {
+		if (ops->oui == oui)
+			break;
+	}
+	transceiver = ops;
+
+	return 0;
+}
+
+static int
+e100_get_mdio_reg(struct net_device *dev, int phy_id, int location)
+{
+	unsigned short cmd;    /* Data to be sent on MDIO port */
+	int data;   /* Data read from MDIO */
+	int bitCounter;
+
+	/* Start of frame, OP Code, Physical Address, Register Address */
+	cmd = (MDIO_START << 14) | (MDIO_READ << 12) | (phy_id << 7) |
+		(location << 2);
+
+	e100_send_mdio_cmd(cmd, 0);
+
+	data = 0;
+
+	/* Data... */
+	for (bitCounter=15; bitCounter>=0 ; bitCounter--) {
+		data |= (e100_receive_mdio_bit() << bitCounter);
+	}
+
+	return data;
+}
+
+static void
+e100_set_mdio_reg(struct net_device *dev, int phy_id, int location, int value)
+{
+	int bitCounter;
+	unsigned short cmd;
+
+	cmd = (MDIO_START << 14) | (MDIO_WRITE << 12) | (phy_id << 7) |
+	      (location << 2);
+
+	e100_send_mdio_cmd(cmd, 1);
+
+	/* Data... */
+	for (bitCounter=15; bitCounter>=0 ; bitCounter--) {
+		e100_send_mdio_bit(GET_BIT(bitCounter, value));
+	}
+
+}
+
+static void
+e100_send_mdio_cmd(unsigned short cmd, int write_cmd)
+{
+	int bitCounter;
+	unsigned char data = 0x2;
+
+	/* Preamble */
+	for (bitCounter = 31; bitCounter>= 0; bitCounter--)
+		e100_send_mdio_bit(GET_BIT(bitCounter, MDIO_PREAMBLE));
+
+	for (bitCounter = 15; bitCounter >= 2; bitCounter--)
+		e100_send_mdio_bit(GET_BIT(bitCounter, cmd));
+
+	/* Turnaround */
+	for (bitCounter = 1; bitCounter >= 0 ; bitCounter--)
+		if (write_cmd)
+			e100_send_mdio_bit(GET_BIT(bitCounter, data));
+		else
+			e100_receive_mdio_bit();
+}
+
+static void
+e100_send_mdio_bit(unsigned char bit)
+{
+	*R_NETWORK_MGM_CTRL =
+		IO_STATE(R_NETWORK_MGM_CTRL, mdoe, enable) |
+		IO_FIELD(R_NETWORK_MGM_CTRL, mdio, bit);
+	udelay(1);
+	*R_NETWORK_MGM_CTRL =