Merge ARM fixes

1 files changed, 0 insertions, 1216 deletions

diff --git a/drivers/net/sk_mca.c b/drivers/net/sk_mca.c
deleted file mode 100644
index 96e06c51b75..00000000000
--- a/drivers/net/sk_mca.c
+++ /dev/null
@@ -1,1216 +0,0 @@
-/*
-net-3-driver for the SKNET MCA-based cards
-
-This is an extension to the Linux operating system, and is covered by the
-same GNU General Public License that covers that work.
-
-Copyright 1999 by Alfred Arnold (alfred@ccac.rwth-aachen.de,
-                                 alfred.arnold@lancom.de)
-
-This driver is based both on the 3C523 driver and the SK_G16 driver.
-
-paper sources:
-  'PC Hardware: Aufbau, Funktionsweise, Programmierung' by
-  Hans-Peter Messmer for the basic Microchannel stuff
-
-  'Linux Geraetetreiber' by Allesandro Rubini, Kalle Dalheimer
-  for help on Ethernet driver programming
-
-  'Ethernet/IEEE 802.3 Family 1992 World Network Data Book/Handbook' by AMD
-  for documentation on the AM7990 LANCE
-
-  'SKNET Personal Technisches Manual', Version 1.2 by Schneider&Koch
-  for documentation on the Junior board
-
-  'SK-NET MC2+ Technical Manual", Version 1.1 by Schneider&Koch for
-  documentation on the MC2 bord
-
-  A big thank you to the S&K support for providing me so quickly with
-  documentation!
-
-  Also see http://www.syskonnect.com/
-
-  Missing things:
-
-  -> set debug level via ioctl instead of compile-time switches
-  -> I didn't follow the development of the 2.1.x kernels, so my
-     assumptions about which things changed with which kernel version
-     are probably nonsense
-
-History:
-  May 16th, 1999
-  	startup
-  May 22st, 1999
-	added private structure, methods
-        begun building data structures in RAM
-  May 23nd, 1999
-	can receive frames, send frames
-  May 24th, 1999
-        modularized initialization of LANCE
-        loadable as module
-	still Tx problem :-(
-  May 26th, 1999
-  	MC2 works
-  	support for multiple devices
-  	display media type for MC2+
-  May 28th, 1999
-	fixed problem in GetLANCE leaving interrupts turned off
-        increase TX queue to 4 packets to improve send performance
-  May 29th, 1999
-	a few corrections in statistics, caught rcvr overruns
-        reinitialization of LANCE/board in critical situations
-        MCA info implemented
-	implemented LANCE multicast filter
-  Jun 6th, 1999
-	additions for Linux 2.2
-  Dec 25th, 1999
-  	unfortunately there seem to be newer MC2+ boards that react
-  	on IRQ 3/5/9/10 instead of 3/5/10/11, so we have to autoprobe
-  	in questionable cases...
-  Dec 28th, 1999
-	integrated patches from David Weinehall & Bill Wendling for 2.3
-	kernels (isa_...functions).  Things are defined in a way that
-        it still works with 2.0.x 8-)
-  Dec 30th, 1999
-	added handling of the remaining interrupt conditions.  That
-        should cure the spurious hangs.
-  Jan 30th, 2000
-	newer kernels automatically probe more than one board, so the
-	'startslot' as a variable is also needed here
-  June 1st, 2000
-	added changes for recent 2.3 kernels
-
- *************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/time.h>
-#include <linux/mca-legacy.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/bitops.h>
-
-#include <asm/processor.h>
-#include <asm/io.h>
-
-#define _SK_MCA_DRIVER_
-#include "sk_mca.h"
-
-/* ------------------------------------------------------------------------
- * global static data - not more since we can handle multiple boards and
- * have to pack all state info into the device struct!
- * ------------------------------------------------------------------------ */
-
-static char *MediaNames[Media_Count] =
-    { "10Base2", "10BaseT", "10Base5", "Unknown" };
-
-static unsigned char poly[] =
-    { 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0,
-	1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0
-};
-
-/* ------------------------------------------------------------------------
- * private subfunctions
- * ------------------------------------------------------------------------ */
-
-/* dump parts of shared memory - only needed during debugging */
-
-#ifdef DEBUG
-static void dumpmem(struct net_device *dev, u32 start, u32 len)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	int z;
-
-	for (z = 0; z < len; z++) {
-		if ((z & 15) == 0)
-			printk("%04x:", z);
-		printk(" %02x", readb(priv->base + start + z));
-		if ((z & 15) == 15)
-			printk("\n");
-	}
-}
-
-/* print exact time - ditto */
-
-static void PrTime(void)
-{
-	struct timeval tv;
-
-	do_gettimeofday(&tv);
-	printk("%9d:%06d: ", tv.tv_sec, tv.tv_usec);
-}
-#endif
-
-/* deduce resources out of POS registers */
-
-static void __init getaddrs(int slot, int junior, int *base, int *irq,
-		     skmca_medium * medium)
-{
-	u_char pos0, pos1, pos2;
-
-	if (junior) {
-		pos0 = mca_read_stored_pos(slot, 2);
-		*base = ((pos0 & 0x0e) << 13) + 0xc0000;
-		*irq = ((pos0 & 0x10) >> 4) + 10;
-		*medium = Media_Unknown;
-	} else {
-		/* reset POS 104 Bits 0+1 so the shared memory region goes to the
-		   configured area between 640K and 1M.  Afterwards, enable the MC2.
-		   I really don't know what rode SK to do this... */
-
-		mca_write_pos(slot, 4,
-			      mca_read_stored_pos(slot, 4) & 0xfc);
-		mca_write_pos(slot, 2,
-			      mca_read_stored_pos(slot, 2) | 0x01);
-
-		pos1 = mca_read_stored_pos(slot, 3);
-		pos2 = mca_read_stored_pos(slot, 4);
-		*base = ((pos1 & 0x07) << 14) + 0xc0000;
-		switch (pos2 & 0x0c) {
-		case 0:
-			*irq = 3;
-			break;
-		case 4:
-			*irq = 5;
-			break;
-		case 8:
-			*irq = -10;
-			break;
-		case 12:
-			*irq = -11;
-			break;
-		}
-		*medium = (pos2 >> 6) & 3;
-	}
-}
-
-/* check for both cards:
-   When the MC2 is turned off, it was configured for more than 15MB RAM,
-   is disabled and won't get detected using the standard probe.  We
-   therefore have to scan the slots manually :-( */
-
-static int __init dofind(int *junior, int firstslot)
-{
-	int slot;
-	unsigned int id;
-
-	for (slot = firstslot; slot < MCA_MAX_SLOT_NR; slot++) {
-		id = mca_read_stored_pos(slot, 0)
-		    + (((unsigned int) mca_read_stored_pos(slot, 1)) << 8);
-
-		*junior = 0;
-		if (id == SKNET_MCA_ID)
-			return slot;
-		*junior = 1;
-		if (id == SKNET_JUNIOR_MCA_ID)
-			return slot;
-	}
-	return MCA_NOTFOUND;
-}
-
-/* reset the whole board */
-
-static void ResetBoard(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-
-	writeb(CTRL_RESET_ON, priv->ctrladdr);
-	udelay(10);
-	writeb(CTRL_RESET_OFF, priv->ctrladdr);
-}
-
-/* wait for LANCE interface to become not busy */
-
-static int WaitLANCE(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	int t = 0;
-
-	while ((readb(priv->ctrladdr) & STAT_IO_BUSY) ==
-	       STAT_IO_BUSY) {
-		udelay(1);
-		if (++t > 1000) {
-			printk("%s: LANCE access timeout", dev->name);
-			return 0;
-		}
-	}
-
-	return 1;
-}
-
-/* set LANCE register - must be atomic */
-
-static void SetLANCE(struct net_device *dev, u16 addr, u16 value)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	unsigned long flags;
-
-	/* disable interrupts */
-
-	spin_lock_irqsave(&priv->lock, flags);
-
-	/* wait until no transfer is pending */
-
-	WaitLANCE(dev);
-
-	/* transfer register address to RAP */
-
-	writeb(CTRL_RESET_OFF | CTRL_RW_WRITE | CTRL_ADR_RAP, priv->ctrladdr);
-	writew(addr, priv->ioregaddr);
-	writeb(IOCMD_GO, priv->cmdaddr);
-	udelay(1);
-	WaitLANCE(dev);
-
-	/* transfer data to register */
-
-	writeb(CTRL_RESET_OFF | CTRL_RW_WRITE | CTRL_ADR_DATA, priv->ctrladdr);
-	writew(value, priv->ioregaddr);
-	writeb(IOCMD_GO, priv->cmdaddr);
-	udelay(1);
-	WaitLANCE(dev);
-
-	/* reenable interrupts */
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/* get LANCE register */
-
-static u16 GetLANCE(struct net_device *dev, u16 addr)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	unsigned long flags;
-	unsigned int res;
-
-	/* disable interrupts */
-
-	spin_lock_irqsave(&priv->lock, flags);
-
-	/* wait until no transfer is pending */
-
-	WaitLANCE(dev);
-
-	/* transfer register address to RAP */
-
-	writeb(CTRL_RESET_OFF | CTRL_RW_WRITE | CTRL_ADR_RAP, priv->ctrladdr);
-	writew(addr, priv->ioregaddr);
-	writeb(IOCMD_GO, priv->cmdaddr);
-	udelay(1);
-	WaitLANCE(dev);
-
-	/* transfer data from register */
-
-	writeb(CTRL_RESET_OFF | CTRL_RW_READ | CTRL_ADR_DATA, priv->ctrladdr);
-	writeb(IOCMD_GO, priv->cmdaddr);
-	udelay(1);
-	WaitLANCE(dev);
-	res = readw(priv->ioregaddr);
-
-	/* reenable interrupts */
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-	return res;
-}
-
-/* build up descriptors in shared RAM */
-
-static void InitDscrs(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	u32 bufaddr;
-
-	/* Set up Tx descriptors. The board has only 16K RAM so bits 16..23
-	   are always 0. */
-
-	bufaddr = RAM_DATABASE;
-	{
-		LANCE_TxDescr descr;
-		int z;
-
-		for (z = 0; z < TXCOUNT; z++) {
-			descr.LowAddr = bufaddr;
-			descr.Flags = 0;
-			descr.Len = 0xf000;
-			descr.Status = 0;
-			memcpy_toio(priv->base + RAM_TXBASE +
-				   (z * sizeof(LANCE_TxDescr)), &descr,
-				   sizeof(LANCE_TxDescr));
-			memset_io(priv->base + bufaddr, 0, RAM_BUFSIZE);
-			bufaddr += RAM_BUFSIZE;
-		}
-	}
-
-	/* do the same for the Rx descriptors */
-
-	{
-		LANCE_RxDescr descr;
-		int z;
-
-		for (z = 0; z < RXCOUNT; z++) {
-			descr.LowAddr = bufaddr;
-			descr.Flags = RXDSCR_FLAGS_OWN;
-			descr.MaxLen = -RAM_BUFSIZE;
-			descr.Len = 0;
-			memcpy_toio(priv->base + RAM_RXBASE +
-				   (z * sizeof(LANCE_RxDescr)), &descr,
-				   sizeof(LANCE_RxDescr));
-			memset_io(priv->base + bufaddr, 0, RAM_BUFSIZE);
-			bufaddr += RAM_BUFSIZE;
-		}
-	}
-}
-
-/* calculate the hash bit position for a given multicast address
-   taken more or less directly from the AMD datasheet... */
-
-static void UpdateCRC(unsigned char *CRC, int bit)
-{
-	int j;
-
-	/* shift CRC one bit */
-
-	memmove(CRC + 1, CRC, 32 * sizeof(unsigned char));
-	CRC[0] = 0;
-
-	/* if bit XOR controlbit = 1, set CRC = CRC XOR polynomial */
-
-	if (bit ^ CRC[32])
-		for (j = 0; j < 32; j++)
-			CRC[j] ^= poly[j];
-}
-
-static unsigned int GetHash(char *address)
-{
-	unsigned char CRC[33];
-	int i, byte, hashcode;
-
-	/* a multicast address has bit 0 in the first byte set */
-
-	if ((address[0] & 1) == 0)
-		return -1;
-
-	/* initialize CRC */
-
-	memset(CRC, 1, sizeof(CRC));
-
-	/* loop through address bits */
-
-	for (byte = 0; byte < 6; byte++)
-		for (i = 0; i < 8; i++)
-			UpdateCRC(CRC, (address[byte] >> i) & 1);
-
-	/* hashcode is the 6 least significant bits of the CRC */
-
-	hashcode = 0;
-	for (i = 0; i < 6; i++)
-		hashcode = (hashcode << 1) + CRC[i];
-	return hashcode;
-}
-
-/* feed ready-built initialization block into LANCE */
-
-static void InitLANCE(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-
-	/* build up descriptors. */
-
-	InitDscrs(dev);
-
-	/* next RX descriptor to be read is the first one.  Since the LANCE
-	   will start from the beginning after initialization, we have to
-	   reset out pointers too. */
-
-	priv->nextrx = 0;
-
-	/* no TX descriptors active */
-
-	priv->nexttxput = priv->nexttxdone = priv->txbusy = 0;
-
-	/* set up the LANCE bus control register - constant for SKnet boards */
-
-	SetLANCE(dev, LANCE_CSR3,
-		 CSR3_BSWAP_OFF | CSR3_ALE_LOW | CSR3_BCON_HOLD);
-
-	/* write address of initialization block into LANCE */
-
-	SetLANCE(dev, LANCE_CSR1, RAM_INITBASE & 0xffff);
-	SetLANCE(dev, LANCE_CSR2, (RAM_INITBASE >> 16) & 0xff);
-
-	/* we don't get ready until the LANCE has read the init block */
-
-	netif_stop_queue(dev);
-
-	/* let LANCE read the initialization block.  LANCE is ready
-	   when we receive the corresponding interrupt. */
-
-	SetLANCE(dev, LANCE_CSR0, CSR0_INEA | CSR0_INIT);
-}
-
-/* stop the LANCE so we can reinitialize it */
-
-static void StopLANCE(struct net_device *dev)
-{
-	/* can't take frames any more */
-
-	netif_stop_queue(dev);
-
-	/* disable interrupts, stop it */
-
-	SetLANCE(dev, LANCE_CSR0, CSR0_STOP);
-}
-
-/* initialize card and LANCE for proper operation */
-
-static void InitBoard(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	LANCE_InitBlock block;
-
-	/* Lay out the shared RAM - first we create the init block for the LANCE.
-	   We do not overwrite it later because we need it again when we switch
-	   promiscous mode on/off. */
-
-	block.Mode = 0;
-	if (dev->flags & IFF_PROMISC)
-		block.Mode |= LANCE_INIT_PROM;
-	memcpy(block.PAdr, dev->dev_addr, 6);
-	memset(block.LAdrF, 0, sizeof(block.LAdrF));
-	block.RdrP = (RAM_RXBASE & 0xffffff) | (LRXCOUNT << 29);
-	block.TdrP = (RAM_TXBASE & 0xffffff) | (LTXCOUNT << 29);
-
-	memcpy_toio(priv->base + RAM_INITBASE, &block, sizeof(block));
-
-	/* initialize LANCE. Implicitly sets up other structures in RAM. */
-
-	InitLANCE(dev);
-}
-
-/* deinitialize card and LANCE */
-
-static void DeinitBoard(struct net_device *dev)
-{
-	/* stop LANCE */
-
-	StopLANCE(dev);
-
-	/* reset board */
-
-	ResetBoard(dev);
-}
-
-/* probe for device's irq */
-
-static int __init ProbeIRQ(struct net_device *dev)
-{
-	unsigned long imaskval, njiffies, irq;
-	u16 csr0val;
-
-	/* enable all interrupts */
-
-	imaskval = probe_irq_on();
-
-	/* initialize the board. Wait for interrupt 'Initialization done'. */
-
-	ResetBoard(dev);
-	InitBoard(dev);
-
-	njiffies = jiffies + HZ;
-	do {
-		csr0val = GetLANCE(dev, LANCE_CSR0);
-	}
-	while (((csr0val & CSR0_IDON) == 0) && (jiffies != njiffies));
-
-	/* turn of interrupts again */
-
-	irq = probe_irq_off(imaskval);
-
-	/* if we found something, ack the interrupt */
-
-	if (irq)
-		SetLANCE(dev, LANCE_CSR0, csr0val | CSR0_IDON);
-
-	/* back to idle state */
-
-	DeinitBoard(dev);
-
-	return irq;
-}
-
-/* ------------------------------------------------------------------------
- * interrupt handler(s)
- * ------------------------------------------------------------------------ */
-
-/* LANCE has read initialization block -> start it */
-
-static u16 irqstart_handler(struct net_device *dev, u16 oldcsr0)
-{
-	/* now we're ready to transmit */
-
-	netif_wake_queue(dev);
-
-	/* reset IDON bit, start LANCE */
-
-	SetLANCE(dev, LANCE_CSR0, oldcsr0 | CSR0_IDON | CSR0_STRT);
-	return GetLANCE(dev, LANCE_CSR0);
-}
-
-/* did we lose blocks due to a FIFO overrun ? */
-
-static u16 irqmiss_handler(struct net_device *dev, u16 oldcsr0)
-{
-	skmca_priv *priv = netdev_priv(dev);
-
-	/* update statistics */
-
-	priv->stat.rx_fifo_errors++;
-
-	/* reset MISS bit */
-
-	SetLANCE(dev, LANCE_CSR0, oldcsr0 | CSR0_MISS);
-	return GetLANCE(dev, LANCE_CSR0);
-}
-
-/* receive interrupt */
-
-static u16 irqrx_handler(struct net_device *dev, u16 oldcsr0)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	LANCE_RxDescr descr;
-	unsigned int descraddr;
-
-	/* run through queue until we reach a descriptor we do not own */
-
-	descraddr = RAM_RXBASE + (priv->nextrx * sizeof(LANCE_RxDescr));
-	while (1) {
-		/* read descriptor */
-		memcpy_fromio(&descr, priv->base + descraddr,
-			     sizeof(LANCE_RxDescr));
-
-		/* if we reach a descriptor we do not own, we're done */
-		if ((descr.Flags & RXDSCR_FLAGS_OWN) != 0)
-			break;
-
-#ifdef DEBUG
-		PrTime();
-		printk("Receive packet on descr %d len %d\n", priv->nextrx,
-		       descr.Len);
-#endif
-
-		/* erroneous packet ? */
-		if ((descr.Flags & RXDSCR_FLAGS_ERR) != 0) {
-			priv->stat.rx_errors++;
-			if ((descr.Flags & RXDSCR_FLAGS_CRC) != 0)
-				priv->stat.rx_crc_errors++;
-			else if ((descr.Flags & RXDSCR_FLAGS_CRC) != 0)
-				priv->stat.rx_frame_errors++;
-			else if ((descr.Flags & RXDSCR_FLAGS_OFLO) != 0)
-				priv->stat.rx_fifo_errors++;
-		}
-
-		/* good packet ? */
-		else {
-			struct sk_buff *skb;
-
-			skb = dev_alloc_skb(descr.Len + 2);
-			if (skb == NULL)
-				priv->stat.rx_dropped++;
-			else {
-				memcpy_fromio(skb_put(skb, descr.Len),
-					     priv->base +
-					     descr.LowAddr, descr.Len);
-				skb->dev = dev;
-				skb->protocol = eth_type_trans(skb, dev);
-				skb->ip_summed = CHECKSUM_NONE;
-				priv->stat.rx_packets++;
-				priv->stat.rx_bytes += descr.Len;
-				netif_rx(skb);
-				dev->last_rx = jiffies;
-			}
-		}
-
-		/* give descriptor back to LANCE */
-		descr.Len = 0;
-		descr.Flags |= RXDSCR_FLAGS_OWN;
-
-		/* update descriptor in shared RAM */
-		memcpy_toio(priv->base + descraddr, &descr,
-			   sizeof(LANCE_RxDescr));
-
-		/* go to next descriptor */
-		priv->nextrx++;
-		descraddr += sizeof(LANCE_RxDescr);
-		if (priv->nextrx >= RXCOUNT) {
-			priv->nextrx = 0;
-			descraddr = RAM_RXBASE;
-		}
-	}
-
-	/* reset RINT bit */
-
-	SetLANCE(dev, LANCE_CSR0, oldcsr0 | CSR0_RINT);
-	return GetLANCE(dev, LANCE_CSR0);
-}
-
-/* transmit interrupt */
-
-static u16 irqtx_handler(struct net_device *dev, u16 oldcsr0)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	LANCE_TxDescr descr;
-	unsigned int descraddr;
-
-	/* check descriptors at most until no busy one is left */
-
-	descraddr =
-	    RAM_TXBASE + (priv->nexttxdone * sizeof(LANCE_TxDescr));
-	while (priv->txbusy > 0) {
-		/* read descriptor */
-		memcpy_fromio(&descr, priv->base + descraddr,
-			     sizeof(LANCE_TxDescr));
-
-		/* if the LANCE still owns this one, we've worked out all sent packets */
-		if ((descr.Flags & TXDSCR_FLAGS_OWN) != 0)
-			break;
-
-#ifdef DEBUG
-		PrTime();
-		printk("Send packet done on descr %d\n", priv->nexttxdone);
-#endif
-
-		/* update statistics */
-		if ((descr.Flags & TXDSCR_FLAGS_ERR) == 0) {
-			priv->stat.tx_packets++;
-			priv->stat.tx_bytes++;
-		} else {
-			priv->stat.tx_errors++;
-			if ((descr.Status & TXDSCR_STATUS_UFLO) != 0) {
-				priv->stat.tx_fifo_errors++;
-				InitLANCE(dev);
-			}
-				else
-			    if ((descr.Status & TXDSCR_STATUS_LCOL) !=
-				0) priv->stat.tx_window_errors++;
-			else if ((descr.Status & TXDSCR_STATUS_LCAR) != 0)
-				priv->stat.tx_carrier_errors++;
-			else if ((descr.Status & TXDSCR_STATUS_RTRY) != 0)
-				priv->stat.tx_aborted_errors++;
-		}
-
-		/* go to next descriptor */
-		priv->nexttxdone++;
-		descraddr += sizeof(LANCE_TxDescr);
-		if (priv->nexttxdone >= TXCOUNT) {
-			priv->nexttxdone = 0;
-			descraddr = RAM_TXBASE;
-		}
-		priv->txbusy--;
-	}
-
-	/* reset TX interrupt bit */
-
-	SetLANCE(dev, LANCE_CSR0, oldcsr0 | CSR0_TINT);
-	oldcsr0 = GetLANCE(dev, LANCE_CSR0);
-
-	/* at least one descriptor is freed.  Therefore we can accept
-	   a new one */
-	/* inform upper layers we're in business again */
-
-	netif_wake_queue(dev);
-
-	return oldcsr0;
-}
-
-/* general interrupt entry */
-
-static irqreturn_t irq_handler(int irq, void *device)
-{
-	struct net_device *dev = (struct net_device *) device;
-	u16 csr0val;
-
-	/* read CSR0 to get interrupt cause */
-
-	csr0val = GetLANCE(dev, LANCE_CSR0);
-
-	/* in case we're not meant... */
-
-	if ((csr0val & CSR0_INTR) == 0)
-		return IRQ_NONE;
-
-#if 0
-	set_bit(LINK_STATE_RXSEM, &dev->state);
-#endif
-
-	/* loop through the interrupt bits until everything is clear */
-
-	do {
-		if ((csr0val & CSR0_IDON) != 0)
-			csr0val = irqstart_handler(dev, csr0val);
-		if ((csr0val & CSR0_RINT) != 0)
-			csr0val = irqrx_handler(dev, csr0val);
-		if ((csr0val & CSR0_MISS) != 0)
-			csr0val = irqmiss_handler(dev, csr0val);
-		if ((csr0val & CSR0_TINT) != 0)
-			csr0val = irqtx_handler(dev, csr0val);
-		if ((csr0val & CSR0_MERR) != 0) {
-			SetLANCE(dev, LANCE_CSR0, csr0val | CSR0_MERR);
-			csr0val = GetLANCE(dev, LANCE_CSR0);
-		}
-		if ((csr0val & CSR0_BABL) != 0) {
-			SetLANCE(dev, LANCE_CSR0, csr0val | CSR0_BABL);
-			csr0val = GetLANCE(dev, LANCE_CSR0);
-		}
-	}
-	while ((csr0val & CSR0_INTR) != 0);
-
-#if 0
-	clear_bit(LINK_STATE_RXSEM, &dev->state);
-#endif
-	return IRQ_HANDLED;
-}
-
-/* ------------------------------------------------------------------------
- * driver methods
- * ------------------------------------------------------------------------ */
-
-/* MCA info */
-
-static int skmca_getinfo(char *buf, int slot, void *d)
-{
-	int len = 0, i;
-	struct net_device *dev = (struct net_device *) d;
-	skmca_priv *priv;
-
-	/* can't say anything about an uninitialized device... */
-
-	if (dev == NULL)
-		return len;
-	priv = netdev_priv(dev);
-
-	/* print info */
-
-	len += sprintf(buf + len, "IRQ: %d\n", priv->realirq);
-	len += sprintf(buf + len, "Memory: %#lx-%#lx\n", dev->mem_start,
-		       dev->mem_end - 1);
-	len +=
-	    sprintf(buf + len, "Transceiver: %s\n",
-		    MediaNames[priv->medium]);
-	len += sprintf(buf + len, "Device: %s\n", dev->name);
-	len += sprintf(buf + len, "MAC address:");
-	for (i = 0; i < 6; i++)
-		len += sprintf(buf + len, " %02x", dev->dev_addr[i]);
-	buf[len++] = '\n';
-	buf[len] = 0;
-
-	return len;
-}
-
-/* open driver.  Means also initialization and start of LANCE */
-
-static int skmca_open(struct net_device *dev)
-{
-	int result;
-	skmca_priv *priv = netdev_priv(dev);
-
-	/* register resources - only necessary for IRQ */
-	result =
-	    request_irq(priv->realirq, irq_handler,
-			IRQF_SHARED | IRQF_SAMPLE_RANDOM, "sk_mca", dev);
-	if (result != 0) {
-		printk("%s: failed to register irq %d\n", dev->name,
-		       dev->irq);
-		return result;
-	}
-	dev->irq = priv->realirq;
-
-	/* set up the card and LANCE */
-
-	InitBoard(dev);
-
-	/* set up flags */
-
-	netif_start_queue(dev);
-
-	return 0;
-}
-
-/* close driver.  Shut down board and free allocated resources */
-
-static int skmca_close(struct net_device *dev)
-{
-	/* turn off board */
-	DeinitBoard(dev);
-
-	/* release resources */
-	if (dev->irq != 0)
-		free_irq(dev->irq, dev);
-	dev->irq = 0;
-
-	return 0;
-}
-
-/* transmit a block. */
-
-static int skmca_tx(struct sk_buff *skb, struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	LANCE_TxDescr descr;
-	unsigned int address;
-	int tmplen, retval = 0;
-	unsigned long flags;
-
-	/* if we get called with a NULL descriptor, the Ethernet layer thinks
-	   our card is stuck an we should reset it.  We'll do this completely: */
-
-	if (skb == NULL) {
-		DeinitBoard(dev);
-		InitBoard(dev);
-		return 0;	/* don't try to free the block here ;-) */
-	}
-
-	/* is there space in the Tx queue ? If no, the upper layer gave us a
-	   packet in spite of us not being ready and is really in trouble.
-	   We'll do the dropping for him: */
-	if (priv->txbusy >= TXCOUNT) {
-		priv->stat.tx_dropped++;
-		retval = -EIO;
-		goto tx_done;
-	}
-
-	/* get TX descriptor */
-	address = RAM_TXBASE + (priv->nexttxput * sizeof(LANCE_TxDescr));
-	memcpy_fromio(&descr, priv->base + address, sizeof(LANCE_TxDescr));
-
-	/* enter packet length as 2s complement - assure minimum length */
-	tmplen = skb->len;
-	if (tmplen < 60)
-		tmplen = 60;
-	descr.Len = 65536 - tmplen;
-
-	/* copy filler into RAM - in case we're filling up...
-	   we're filling a bit more than necessary, but that doesn't harm
-	   since the buffer is far larger... */
-	if (tmplen > skb->len) {
-		char *fill = "NetBSD is a nice OS too! ";
-		unsigned int destoffs = 0, l = strlen(fill);
-
-		while (destoffs < tmplen) {
-			memcpy_toio(priv->base + descr.LowAddr +
-				   destoffs, fill, l);
-			destoffs += l;
-		}
-	}
-
-	/* do the real data copying */
-	memcpy_toio(priv->base + descr.LowAddr, skb->data, skb->len);
-
-	/* hand descriptor over to LANCE - this is the first and last chunk */
-	descr.Flags =
-	    TXDSCR_FLAGS_OWN | TXDSCR_FLAGS_STP | TXDSCR_FLAGS_ENP;
-
-#ifdef DEBUG
-	PrTime();
-	printk("Send packet on descr %d len %d\n", priv->nexttxput,
-	       skb->len);
-#endif
-
-	/* one more descriptor busy */
-
-	spin_lock_irqsave(&priv->lock, flags);
-
-	priv->nexttxput++;
-	if (priv->nexttxput >= TXCOUNT)
-		priv->nexttxput = 0;
-	priv->txbusy++;
-
-	/* are we saturated ? */
-
-	if (priv->txbusy >= TXCOUNT)
-		netif_stop_queue(dev);
-
-	/* write descriptor back to RAM */
-	memcpy_toio(priv->base + address, &descr, sizeof(LANCE_TxDescr));
-
-	/* if no descriptors were active, give the LANCE a hint to read it
-	   immediately */
-
-	if (priv->txbusy == 0)
-		SetLANCE(dev, LANCE_CSR0, CSR0_INEA | CSR0_TDMD);
-
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-      tx_done:
-
-	dev_kfree_skb(skb);
-
-	return retval;
-}
-
-/* return pointer to Ethernet statistics */
-
-static struct net_device_stats *skmca_stats(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-
-	return &(priv->stat);
-}
-
-/* switch receiver mode.  We use the LANCE's multicast filter to prefilter
-   multicast addresses. */
-
-static void skmca_set_multicast_list(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	LANCE_InitBlock block;
-
-	/* first stop the LANCE... */
-	StopLANCE(dev);
-
-	/* ...then modify the initialization block... */
-	memcpy_fromio(&block, priv->base + RAM_INITBASE, sizeof(block));
-	if (dev->flags & IFF_PROMISC)
-		block.Mode |= LANCE_INIT_PROM;
-	else
-		block.Mode &= ~LANCE_INIT_PROM;
-
-	if (dev->flags & IFF_ALLMULTI) {	/* get all multicasts */
-		memset(block.LAdrF, 0xff, sizeof(block.LAdrF));
-	} else {		/* get selected/no multicasts */
-
-		struct dev_mc_list *mptr;
-		int code;
-
-		memset(block.LAdrF, 0, sizeof(block.LAdrF));
-		for (mptr = dev->mc_list; mptr != NULL; mptr = mptr->next) {
-			code = GetHash(mptr->dmi_addr);
-			block.LAdrF[(code >> 3) & 7] |= 1 << (code & 7);
-		}
-	}
-
-	memcpy_toio(priv->base + RAM_INITBASE, &block, sizeof(block));
-
-	/* ...then reinit LANCE with the correct flags */
-	InitLANCE(dev);
-}
-
-/* ------------------------------------------------------------------------
- * hardware check
- * ------------------------------------------------------------------------ */
-
-static int startslot;		/* counts through slots when probing multiple devices */
-
-static void cleanup_card(struct net_device *dev)
-{
-	skmca_priv *priv = netdev_priv(dev);
-	DeinitBoard(dev);
-	if (dev->irq != 0)
-		free_irq(dev->irq, dev);
-	iounmap(priv->base);
-	mca_mark_as_unused(priv->slot);
-	mca_set_adapter_procfn(priv->slot, NULL, NULL);
-}
-
-struct net_device * __init skmca_probe(int unit)
-{
-	struct net_device *dev;
-	int force_detect = 0;
-	int junior, slot, i;
-	int base = 0, irq = 0;
-	skmca_priv *priv;
-	skmca_medium medium;
-	int err;
-
-	/* can't work without an MCA bus ;-) */
-
-	if (MCA_bus == 0)
-		return ERR_PTR(-ENODEV);
-
-	dev = alloc_etherdev(sizeof(skmca_priv));
-	if (!dev)
-		return ERR_PTR(-ENOMEM);
-
-	if (unit >= 0) {
-		sprintf(dev->name, "eth%d", unit);
-		netdev_boot_setup_check(dev);
-	}
-
-	SET_MODULE_OWNER(dev);
-
-	/* start address of 1 --> forced detection */
-
-	if (dev->mem_start == 1)
-		force_detect = 1;
-
-	/* search through slots */
-
-	base = dev->mem_start;
-	irq = dev->base_addr;
-	for (slot = startslot; (slot = dofind(&junior, slot)) != -1; slot++) {
-		/* deduce card addresses */
-
-		getaddrs(slot, junior, &base, &irq, &medium);
-
-		/* slot already in use ? */
-
-		if (mca_is_adapter_used(slot))
-			continue;
-
-		/* were we looking for something different ? */
-
-		if (dev->irq && dev->irq != irq)
-			continue;
-		if (dev->mem_start && dev->mem_start != base)
-			continue;
-
-		/* found something that matches */
-
-		break;
-	}
-
-	/* nothing found ? */
-
-	if (slot == -1) {
-		free_netdev(dev);
-		return (base || irq) ? ERR_PTR(-ENXIO) : ERR_PTR(-ENODEV);
-	}
-
-	/* make procfs entries */
-
-	if (junior)
-		mca_set_adapter_name(slot,
-				     "SKNET junior MC2 Ethernet Adapter");
-	else
-		mca_set_adapter_name(slot, "SKNET MC2+ Ethernet Adapter");
-	mca_set_adapter_procfn(slot, (MCA_ProcFn) skmca_getinfo, dev);
-
-	mca_mark_as_used(slot);
-
-	/* announce success */
-	printk("%s: SKNet %s adapter found in slot %d\n", dev->name,
-	       junior ? "Junior MC2" : "MC2+", slot + 1);
-
-	priv = netdev_priv(dev);
-	priv->base = ioremap(base, 0x4000);
-	if (!priv->base) {
-		mca_set_adapter_procfn(slot, NULL, NULL);
-		mca_mark_as_unused(slot);
-		free_netdev(dev);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	priv->slot = slot;
-	priv->macbase = priv->base + 0x3fc0;
-	priv->ioregaddr = priv->base + 0x3ff0;
-	priv->ctrladdr = priv->base + 0x3ff2;
-	priv->cmdaddr = priv->base + 0x3ff3;
-	priv->medium = medium;
-	memset(&priv->stat, 0, sizeof(struct net_device_stats));
-	spin_lock_init(&priv->lock);
-
-	/* set base + irq for this device (irq not allocated so far) */
-	dev->irq = 0;
-	dev->mem_start = base;
-	dev->mem_end = base + 0x4000;
-
-	/* autoprobe ? */
-	if (irq < 0) {
-		int nirq;
-
-		printk
-		    ("%s: ambigous POS bit combination, must probe for IRQ...\n",
-		     dev->name);
-		nirq = ProbeIRQ(dev);
-		if (nirq <= 0)
-			printk("%s: IRQ probe failed, assuming IRQ %d",
-			       dev->name, priv->realirq = -irq);
-		else
-			priv->realirq = nirq;
-	} else
-		priv->realirq = irq;
-
-	/* set methods */
-	dev->open = skmca_open;
-	dev->stop = skmca_close;
-	dev->hard_start_xmit = skmca_tx;
-	dev->do_ioctl = NULL;
-	dev->get_stats = skmca_stats;
-	dev->set_multicast_list = skmca_set_multicast_list;
-	dev->flags |= IFF_MULTICAST;
-
-	/* copy out MAC address */
-	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = readb(priv->macbase + (i << 1));
-
-	/* print config */
-	printk("%s: IRQ %d, memory %#lx-%#lx, "
-	       "MAC address %02x:%02x:%02x:%02x:%02x:%02x.\n",
-	       dev->name, priv->realirq, dev->mem_start, dev->mem_end - 1,
-	       dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
-	       dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
-	printk("%s: %s medium\n", dev->name, MediaNames[priv->medium]);
-
-	/* reset board */
-
-	ResetBoard(dev);
-
-	startslot = slot + 1;
-
-	err = register_netdev(dev);
-	if (err) {
-		cleanup_card(dev);
-		free_netdev(dev);
-		dev = ERR_PTR(err);
-	}
-	return dev;
-}
-
-/* ------------------------------------------------------------------------
- * modularization support
- * ------------------------------------------------------------------------ */
-
-#ifdef MODULE
-MODULE_LICENSE("GPL");
-
-#define DEVMAX 5
-
-static struct net_device *moddevs[DEVMAX];
-
-int init_module(void)
-{
-	int z;
-
-	startslot = 0;
-	for (z = 0; z < DEVMAX; z++) {
-		struct net_device *dev = skmca_probe(-1);
-		if (IS_ERR(dev))
-			break;
-		moddevs[z] = dev;
-	}
-	if (!z)
-		return -EIO;
-	return 0;
-}
-
-void cleanup_module(void)
-{
-	int z;
-
-	for (z = 0; z < DEVMAX; z++) {
-		struct net_device *dev = moddevs[z];
-		if (dev) {
-			unregister_netdev(dev);
-			cleanup_card(dev);
-			free_netdev(dev);
-		}
-	}
-}
-#endif				/* MODULE */