i825xx: Move the Intel 82586/82593/82596 based drivers

Move the drivers that use the i82586/i82593/i82596 chipsets into
drivers/net/ethernet/i825xx/ and make the necessary Kconfig and
Makefile changes.  There were 4 3Com drivers which were initially
moved into 3com/, which now reside in i825xx since they all used
the i82586 chip.

CC: Philip Blundell <philb@gnu.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: <aris@cathedrallabs.org>
CC: Donald Becker <becker@scyld.com>
CC: Chris Beauregard <cpbeaure@undergrad.math.uwaterloo.ca>
CC: Richard Procter <rnp@paradise.net.nz>
CC: Andries Brouwer <aeb@cwi.nl>
CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de>
CC: Richard Hirst <richard@sleepie.demon.co.uk>
CC: Sam Creasey <sammy@oh.verio.com>
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 1094 deletions

diff --git a/drivers/net/arm/ether1.c b/drivers/net/arm/ether1.c
deleted file mode 100644
index b00781c02d5d..000000000000
--- a/drivers/net/arm/ether1.c
+++ /dev/null
@@ -1,1094 +0,0 @@
-/*
- *  linux/drivers/acorn/net/ether1.c
- *
- *  Copyright (C) 1996-2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *  Acorn ether1 driver (82586 chip) for Acorn machines
- *
- * We basically keep two queues in the cards memory - one for transmit
- * and one for receive.  Each has a head and a tail.  The head is where
- * we/the chip adds packets to be transmitted/received, and the tail
- * is where the transmitter has got to/where the receiver will stop.
- * Both of these queues are circular, and since the chip is running
- * all the time, we have to be careful when we modify the pointers etc
- * so that the buffer memory contents is valid all the time.
- *
- * Change log:
- * 1.00	RMK			Released
- * 1.01	RMK	19/03/1996	Transfers the last odd byte onto/off of the card now.
- * 1.02	RMK	25/05/1997	Added code to restart RU if it goes not ready
- * 1.03	RMK	14/09/1997	Cleaned up the handling of a reset during the TX interrupt.
- *				Should prevent lockup.
- * 1.04 RMK	17/09/1997	Added more info when initialsation of chip goes wrong.
- *				TDR now only reports failure when chip reports non-zero
- *				TDR time-distance.
- * 1.05	RMK	31/12/1997	Removed calls to dev_tint for 2.1
- * 1.06	RMK	10/02/2000	Updated for 2.3.43
- * 1.07	RMK	13/05/2000	Updated for 2.3.99-pre8
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/ecard.h>
-
-#define __ETHER1_C
-#include "ether1.h"
-
-static unsigned int net_debug = NET_DEBUG;
-
-#define BUFFER_SIZE	0x10000
-#define TX_AREA_START	0x00100
-#define TX_AREA_END	0x05000
-#define RX_AREA_START	0x05000
-#define RX_AREA_END	0x0fc00
-
-static int ether1_open(struct net_device *dev);
-static int ether1_sendpacket(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t ether1_interrupt(int irq, void *dev_id);
-static int ether1_close(struct net_device *dev);
-static void ether1_setmulticastlist(struct net_device *dev);
-static void ether1_timeout(struct net_device *dev);
-
-/* ------------------------------------------------------------------------- */
-
-static char version[] __devinitdata = "ether1 ethernet driver (c) 2000 Russell King v1.07\n";
-
-#define BUS_16 16
-#define BUS_8  8
-
-/* ------------------------------------------------------------------------- */
-
-#define DISABLEIRQS 1
-#define NORMALIRQS  0
-
-#define ether1_readw(dev, addr, type, offset, svflgs) ether1_inw_p (dev, addr + (int)(&((type *)0)->offset), svflgs)
-#define ether1_writew(dev, val, addr, type, offset, svflgs) ether1_outw_p (dev, val, addr + (int)(&((type *)0)->offset), svflgs)
-
-static inline unsigned short
-ether1_inw_p (struct net_device *dev, int addr, int svflgs)
-{
-	unsigned long flags;
-	unsigned short ret;
-
-	if (svflgs)
-		local_irq_save (flags);
-
-	writeb(addr >> 12, REG_PAGE);
-	ret = readw(ETHER1_RAM + ((addr & 4095) << 1));
-	if (svflgs)
-		local_irq_restore (flags);
-	return ret;
-}
-
-static inline void
-ether1_outw_p (struct net_device *dev, unsigned short val, int addr, int svflgs)
-{
-	unsigned long flags;
-
-	if (svflgs)
-		local_irq_save (flags);
-
-	writeb(addr >> 12, REG_PAGE);
-	writew(val, ETHER1_RAM + ((addr & 4095) << 1));
-	if (svflgs)
-		local_irq_restore (flags);
-}
-
-/*
- * Some inline assembler to allow fast transfers on to/off of the card.
- * Since this driver depends on some features presented by the ARM
- * specific architecture, and that you can't configure this driver
- * without specifiing ARM mode, this is not a problem.
- *
- * This routine is essentially an optimised memcpy from the card's
- * onboard RAM to kernel memory.
- */
-static void
-ether1_writebuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length)
-{
-	unsigned int page, thislen, offset;
-	void __iomem *addr;
-
-	offset = start & 4095;
-	page = start >> 12;
-	addr = ETHER1_RAM + (offset << 1);
-
-	if (offset + length > 4096)
-		thislen = 4096 - offset;
-	else
-		thislen = length;
-
-	do {
-		int used;
-
-		writeb(page, REG_PAGE);
-		length -= thislen;
-
-		__asm__ __volatile__(
-	"subs	%3, %3, #2\n\
-	bmi	2f\n\
-1:	ldr	%0, [%1], #2\n\
-	mov	%0, %0, lsl #16\n\
-	orr	%0, %0, %0, lsr #16\n\
-	str	%0, [%2], #4\n\
-	subs	%3, %3, #2\n\
-	bmi	2f\n\
-	ldr	%0, [%1], #2\n\
-	mov	%0, %0, lsl #16\n\
-	orr	%0, %0, %0, lsr #16\n\
-	str	%0, [%2], #4\n\
-	subs	%3, %3, #2\n\
-	bmi	2f\n\
-	ldr	%0, [%1], #2\n\
-	mov	%0, %0, lsl #16\n\
-	orr	%0, %0, %0, lsr #16\n\
-	str	%0, [%2], #4\n\
-	subs	%3, %3, #2\n\
-	bmi	2f\n\
-	ldr	%0, [%1], #2\n\
-	mov	%0, %0, lsl #16\n\
-	orr	%0, %0, %0, lsr #16\n\
-	str	%0, [%2], #4\n\
-	subs	%3, %3, #2\n\
-	bpl	1b\n\
-2:	adds	%3, %3, #1\n\
-	ldreqb	%0, [%1]\n\
-	streqb	%0, [%2]"
-		: "=&r" (used), "=&r" (data)
-		: "r"  (addr), "r" (thislen), "1" (data));
-
-		addr = ETHER1_RAM;
-
-		thislen = length;
-		if (thislen > 4096)
-			thislen = 4096;
-		page++;
-	} while (thislen);
-}
-
-static void
-ether1_readbuffer (struct net_device *dev, void *data, unsigned int start, unsigned int length)
-{
-	unsigned int page, thislen, offset;
-	void __iomem *addr;
-
-	offset = start & 4095;
-	page = start >> 12;
-	addr = ETHER1_RAM + (offset << 1);
-
-	if (offset + length > 4096)
-		thislen = 4096 - offset;
-	else
-		thislen = length;
-
-	do {
-		int used;
-
-		writeb(page, REG_PAGE);
-		length -= thislen;
-
-		__asm__ __volatile__(
-	"subs	%3, %3, #2\n\
-	bmi	2f\n\
-1:	ldr	%0, [%2], #4\n\
-	strb	%0, [%1], #1\n\
-	mov	%0, %0, lsr #8\n\
-	strb	%0, [%1], #1\n\
-	subs	%3, %3, #2\n\
-	bmi	2f\n\
-	ldr	%0, [%2], #4\n\
-	strb	%0, [%1], #1\n\
-	mov	%0, %0, lsr #8\n\
-	strb	%0, [%1], #1\n\
-	subs	%3, %3, #2\n\
-	bmi	2f\n\
-	ldr	%0, [%2], #4\n\
-	strb	%0, [%1], #1\n\
-	mov	%0, %0, lsr #8\n\
-	strb	%0, [%1], #1\n\
-	subs	%3, %3, #2\n\
-	bmi	2f\n\
-	ldr	%0, [%2], #4\n\
-	strb	%0, [%1], #1\n\
-	mov	%0, %0, lsr #8\n\
-	strb	%0, [%1], #1\n\
-	subs	%3, %3, #2\n\
-	bpl	1b\n\
-2:	adds	%3, %3, #1\n\
-	ldreqb	%0, [%2]\n\
-	streqb	%0, [%1]"
-		: "=&r" (used), "=&r" (data)
-		: "r"  (addr), "r" (thislen), "1" (data));
-
-		addr = ETHER1_RAM;
-
-		thislen = length;
-		if (thislen > 4096)
-			thislen = 4096;
-		page++;
-	} while (thislen);
-}
-
-static int __devinit
-ether1_ramtest(struct net_device *dev, unsigned char byte)
-{
-	unsigned char *buffer = kmalloc (BUFFER_SIZE, GFP_KERNEL);
-	int i, ret = BUFFER_SIZE;
-	int max_errors = 15;
-	int bad = -1;
-	int bad_start = 0;
-
-	if (!buffer)
-		return 1;
-
-	memset (buffer, byte, BUFFER_SIZE);
-	ether1_writebuffer (dev, buffer, 0, BUFFER_SIZE);
-	memset (buffer, byte ^ 0xff, BUFFER_SIZE);
-	ether1_readbuffer (dev, buffer, 0, BUFFER_SIZE);
-
-	for (i = 0; i < BUFFER_SIZE; i++) {
-		if (buffer[i] != byte) {
-			if (max_errors >= 0 && bad != buffer[i]) {
-				if (bad != -1)
-					printk ("\n");
-				printk (KERN_CRIT "%s: RAM failed with (%02X instead of %02X) at 0x%04X",
-					dev->name, buffer[i], byte, i);
-				ret = -ENODEV;
-				max_errors --;
-				bad = buffer[i];
-				bad_start = i;
-			}
-		} else {
-			if (bad != -1) {
-			    	if (bad_start == i - 1)
-					printk ("\n");
-				else
-					printk (" - 0x%04X\n", i - 1);
-				bad = -1;
-			}
-		}
-	}
-
-	if (bad != -1)
-		printk (" - 0x%04X\n", BUFFER_SIZE);
-	kfree (buffer);
-
-	return ret;
-}
-
-static int
-ether1_reset (struct net_device *dev)
-{
-	writeb(CTRL_RST|CTRL_ACK, REG_CONTROL);
-	return BUS_16;
-}
-
-static int __devinit
-ether1_init_2(struct net_device *dev)
-{
-	int i;
-	dev->mem_start = 0;
-
-	i = ether1_ramtest (dev, 0x5a);
-
-	if (i > 0)
-		i = ether1_ramtest (dev, 0x1e);
-
-	if (i <= 0)
-	    	return -ENODEV;
-
-	dev->mem_end = i;
-	return 0;
-}
-
-/*
- * These are the structures that are loaded into the ether RAM card to
- * initialise the 82586
- */
-
-/* at 0x0100 */
-#define NOP_ADDR	(TX_AREA_START)
-#define NOP_SIZE	(0x06)
-static nop_t  init_nop  = {
-	0,
-	CMD_NOP,
-	NOP_ADDR
-};
-
-/* at 0x003a */
-#define TDR_ADDR	(0x003a)
-#define TDR_SIZE	(0x08)
-static tdr_t  init_tdr	= {
-	0,
-	CMD_TDR | CMD_INTR,
-	NOP_ADDR,
-	0
-};
-
-/* at 0x002e */
-#define MC_ADDR		(0x002e)
-#define MC_SIZE		(0x0c)
-static mc_t   init_mc   = {
-	0,
-	CMD_SETMULTICAST,
-	TDR_ADDR,
-	0,
-	{ { 0, } }
-};
-
-/* at 0x0022 */
-#define SA_ADDR		(0x0022)
-#define SA_SIZE		(0x0c)
-static sa_t   init_sa   = {
-	0,
-	CMD_SETADDRESS,
-	MC_ADDR,
-	{ 0, }
-};
-
-/* at 0x0010 */
-#define CFG_ADDR	(0x0010)
-#define CFG_SIZE	(0x12)
-static cfg_t  init_cfg  = {
-	0,
-	CMD_CONFIG,
-	SA_ADDR,
-	8,
-	8,
-	CFG8_SRDY,
-	CFG9_PREAMB8 | CFG9_ADDRLENBUF | CFG9_ADDRLEN(6),
-	0,
-	0x60,
-	0,
-	CFG13_RETRY(15) | CFG13_SLOTH(2),
-	0,
-};
-
-/* at 0x0000 */
-#define SCB_ADDR	(0x0000)
-#define SCB_SIZE	(0x10)
-static scb_t  init_scb  = {
-	0,
-	SCB_CMDACKRNR | SCB_CMDACKCNA | SCB_CMDACKFR | SCB_CMDACKCX,
-	CFG_ADDR,
-	RX_AREA_START,
-	0,
-	0,
-	0,
-	0
-};
-
-/* at 0xffee */
-#define ISCP_ADDR	(0xffee)
-#define ISCP_SIZE	(0x08)
-static iscp_t init_iscp = {
-	1,
-	SCB_ADDR,
-	0x0000,
-	0x0000
-};
-
-/* at 0xfff6 */
-#define SCP_ADDR	(0xfff6)
-#define SCP_SIZE	(0x0a)
-static scp_t  init_scp  = {
-	SCP_SY_16BBUS,
-	{ 0, 0 },
-	ISCP_ADDR,
-	0
-};
-
-#define RFD_SIZE	(0x16)
-static rfd_t  init_rfd	= {
-	0,
-	0,
-	0,
-	0,
-	{ 0, },
-	{ 0, },
-	0
-};
-
-#define RBD_SIZE	(0x0a)
-static rbd_t  init_rbd	= {
-	0,
-	0,
-	0,
-	0,
-	ETH_FRAME_LEN + 8
-};
-
-#define TX_SIZE		(0x08)
-#define TBD_SIZE	(0x08)
-
-static int
-ether1_init_for_open (struct net_device *dev)
-{
-	int i, status, addr, next, next2;
-	int failures = 0;
-	unsigned long timeout;
-
-	writeb(CTRL_RST|CTRL_ACK, REG_CONTROL);
-
-	for (i = 0; i < 6; i++)
-		init_sa.sa_addr[i] = dev->dev_addr[i];
-
-	/* load data structures into ether1 RAM */
-	ether1_writebuffer (dev, &init_scp,  SCP_ADDR,  SCP_SIZE);
-	ether1_writebuffer (dev, &init_iscp, ISCP_ADDR, ISCP_SIZE);
-	ether1_writebuffer (dev, &init_scb,  SCB_ADDR,  SCB_SIZE);
-	ether1_writebuffer (dev, &init_cfg,  CFG_ADDR,  CFG_SIZE);
-	ether1_writebuffer (dev, &init_sa,   SA_ADDR,   SA_SIZE);
-	ether1_writebuffer (dev, &init_mc,   MC_ADDR,   MC_SIZE);
-	ether1_writebuffer (dev, &init_tdr,  TDR_ADDR,  TDR_SIZE);
-	ether1_writebuffer (dev, &init_nop,  NOP_ADDR,  NOP_SIZE);
-
-	if (ether1_readw(dev, CFG_ADDR, cfg_t, cfg_command, NORMALIRQS) != CMD_CONFIG) {
-		printk (KERN_ERR "%s: detected either RAM fault or compiler bug\n",
-			dev->name);
-		return 1;
-	}
-
-	/*
-	 * setup circularly linked list of { rfd, rbd, buffer }, with
-	 * all rfds circularly linked, rbds circularly linked.
-	 * First rfd is linked to scp, first rbd is linked to first
-	 * rfd.  Last rbd has a suspend command.
-	 */
-	addr = RX_AREA_START;
-	do {
-		next = addr + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10;
-		next2 = next + RFD_SIZE + RBD_SIZE + ETH_FRAME_LEN + 10;
-
-		if (next2 >= RX_AREA_END) {
-			next = RX_AREA_START;
-			init_rfd.rfd_command = RFD_CMDEL | RFD_CMDSUSPEND;
-			priv(dev)->rx_tail = addr;
-		} else
-			init_rfd.rfd_command = 0;
-		if (addr == RX_AREA_START)
-			init_rfd.rfd_rbdoffset = addr + RFD_SIZE;
-		else
-			init_rfd.rfd_rbdoffset = 0;
-		init_rfd.rfd_link = next;
-		init_rbd.rbd_link = next + RFD_SIZE;
-		init_rbd.rbd_bufl = addr + RFD_SIZE + RBD_SIZE;
-
-		ether1_writebuffer (dev, &init_rfd, addr, RFD_SIZE);
-		ether1_writebuffer (dev, &init_rbd, addr + RFD_SIZE, RBD_SIZE);
-		addr = next;
-	} while (next2 < RX_AREA_END);
-
-	priv(dev)->tx_link = NOP_ADDR;
-	priv(dev)->tx_head = NOP_ADDR + NOP_SIZE;
-	priv(dev)->tx_tail = TDR_ADDR;
-	priv(dev)->rx_head = RX_AREA_START;
-
-	/* release reset & give 586 a prod */
-	priv(dev)->resetting = 1;
-	priv(dev)->initialising = 1;
-	writeb(CTRL_RST, REG_CONTROL);
-	writeb(0, REG_CONTROL);
-	writeb(CTRL_CA, REG_CONTROL);
-
-	/* 586 should now unset iscp.busy */
-	timeout = jiffies + HZ/2;
-	while (ether1_readw(dev, ISCP_ADDR, iscp_t, iscp_busy, DISABLEIRQS) == 1) {
-		if (time_after(jiffies, timeout)) {
-			printk (KERN_WARNING "%s: can't initialise 82586: iscp is busy\n", dev->name);
-			return 1;
-		}
-	}
-
-	/* check status of commands that we issued */
-	timeout += HZ/10;
-	while (((status = ether1_readw(dev, CFG_ADDR, cfg_t, cfg_status, DISABLEIRQS))
-			& STAT_COMPLETE) == 0) {
-		if (time_after(jiffies, timeout))
-			break;
-	}
-
-	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
-		printk (KERN_WARNING "%s: can't initialise 82586: config status %04X\n", dev->name, status);
-		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
-		failures += 1;
-	}
-
-	timeout += HZ/10;
-	while (((status = ether1_readw(dev, SA_ADDR, sa_t, sa_status, DISABLEIRQS))
-			& STAT_COMPLETE) == 0) {
-		if (time_after(jiffies, timeout))
-			break;
-	}
-
-	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
-		printk (KERN_WARNING "%s: can't initialise 82586: set address status %04X\n", dev->name, status);
-		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
-		failures += 1;
-	}
-
-	timeout += HZ/10;
-	while (((status = ether1_readw(dev, MC_ADDR, mc_t, mc_status, DISABLEIRQS))
-			& STAT_COMPLETE) == 0) {
-		if (time_after(jiffies, timeout))
-			break;
-	}
-
-	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
-		printk (KERN_WARNING "%s: can't initialise 82586: set multicast status %04X\n", dev->name, status);
-		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
-		failures += 1;
-	}
-
-	timeout += HZ;
-	while (((status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_status, DISABLEIRQS))
-			& STAT_COMPLETE) == 0) {
-		if (time_after(jiffies, timeout))
-			break;
-	}
-
-	if ((status & (STAT_COMPLETE | STAT_OK)) != (STAT_COMPLETE | STAT_OK)) {
-		printk (KERN_WARNING "%s: can't tdr (ignored)\n", dev->name);
-		printk (KERN_DEBUG "%s: SCB=[STS=%04X CMD=%04X CBL=%04X RFA=%04X]\n", dev->name,
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_command, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS),
-			ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset, NORMALIRQS));
-	} else {
-		status = ether1_readw(dev, TDR_ADDR, tdr_t, tdr_result, DISABLEIRQS);
-		if (status & TDR_XCVRPROB)
-			printk (KERN_WARNING "%s: i/f failed tdr: transceiver problem\n", dev->name);
-		else if ((status & (TDR_SHORT|TDR_OPEN)) && (status & TDR_TIME)) {
-#ifdef FANCY
-			printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d.%d us away\n", dev->name,
-				status & TDR_SHORT ? "short" : "open", (status & TDR_TIME) / 10,
-				(status & TDR_TIME) % 10);
-#else
-			printk (KERN_WARNING "%s: i/f failed tdr: cable %s %d clks away\n", dev->name,
-				status & TDR_SHORT ? "short" : "open", (status & TDR_TIME));
-#endif
-		}
-	}
-
-	if (failures)
-		ether1_reset (dev);
-	return failures ? 1 : 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-static int
-ether1_txalloc (struct net_device *dev, int size)
-{
-	int start, tail;
-
-	size = (size + 1) & ~1;
-	tail = priv(dev)->tx_tail;
-
-	if (priv(dev)->tx_head + size > TX_AREA_END) {
-		if (tail > priv(dev)->tx_head)
-			return -1;
-		start = TX_AREA_START;
-		if (start + size > tail)
-			return -1;
-		priv(dev)->tx_head = start + size;
-	} else {
-		if (priv(dev)->tx_head < tail && (priv(dev)->tx_head + size) > tail)
-			return -1;
-		start = priv(dev)->tx_head;
-		priv(dev)->tx_head += size;
-	}
-
-	return start;
-}
-
-static int
-ether1_open (struct net_device *dev)
-{
-	if (!is_valid_ether_addr(dev->dev_addr)) {
-		printk(KERN_WARNING "%s: invalid ethernet MAC address\n",
-			dev->name);
-		return -EINVAL;
-	}
-
-	if (request_irq(dev->irq, ether1_interrupt, 0, "ether1", dev))
-		return -EAGAIN;
-
-	if (ether1_init_for_open (dev)) {
-		free_irq (dev->irq, dev);
-		return -EAGAIN;
-	}
-
-	netif_start_queue(dev);
-
-	return 0;
-}
-
-static void
-ether1_timeout(struct net_device *dev)
-{
-	printk(KERN_WARNING "%s: transmit timeout, network cable problem?\n",
-		dev->name);
-	printk(KERN_WARNING "%s: resetting device\n", dev->name);
-
-	ether1_reset (dev);
-
-	if (ether1_init_for_open (dev))
-		printk (KERN_ERR "%s: unable to restart interface\n", dev->name);
-
-	dev->stats.tx_errors++;
-	netif_wake_queue(dev);
-}
-
-static int
-ether1_sendpacket (struct sk_buff *skb, struct net_device *dev)
-{
-	int tmp, tst, nopaddr, txaddr, tbdaddr, dataddr;
-	unsigned long flags;
-	tx_t tx;
-	tbd_t tbd;
-	nop_t nop;
-
-	if (priv(dev)->restart) {
-		printk(KERN_WARNING "%s: resetting device\n", dev->name);
-
-		ether1_reset(dev);
-
-		if (ether1_init_for_open(dev))
-			printk(KERN_ERR "%s: unable to restart interface\n", dev->name);
-		else
-			priv(dev)->restart = 0;
-	}
-
-	if (skb->len < ETH_ZLEN) {
-		if (skb_padto(skb, ETH_ZLEN))
-			goto out;
-	}
-
-	/*
-	 * insert packet followed by a nop
-	 */
-	txaddr = ether1_txalloc (dev, TX_SIZE);
-	tbdaddr = ether1_txalloc (dev, TBD_SIZE);
-	dataddr = ether1_txalloc (dev, skb->len);
-	nopaddr = ether1_txalloc (dev, NOP_SIZE);
-
-	tx.tx_status = 0;
-	tx.tx_command = CMD_TX | CMD_INTR;
-	tx.tx_link = nopaddr;
-	tx.tx_tbdoffset = tbdaddr;
-	tbd.tbd_opts = TBD_EOL | skb->len;
-	tbd.tbd_link = I82586_NULL;
-	tbd.tbd_bufl = dataddr;
-	tbd.tbd_bufh = 0;
-	nop.nop_status = 0;
-	nop.nop_command = CMD_NOP;
-	nop.nop_link = nopaddr;
-
-	local_irq_save(flags);
-	ether1_writebuffer (dev, &tx, txaddr, TX_SIZE);
-	ether1_writebuffer (dev, &tbd, tbdaddr, TBD_SIZE);
-	ether1_writebuffer (dev, skb->data, dataddr, skb->len);
-	ether1_writebuffer (dev, &nop, nopaddr, NOP_SIZE);
-	tmp = priv(dev)->tx_link;
-	priv(dev)->tx_link = nopaddr;
-
-	/* now reset the previous nop pointer */
-	ether1_writew(dev, txaddr, tmp, nop_t, nop_link, NORMALIRQS);
-
-	local_irq_restore(flags);
-
-	/* handle transmit */
-
-	/* check to see if we have room for a full sized ether frame */
-	tmp = priv(dev)->tx_head;
-	tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN);
-	priv(dev)->tx_head = tmp;
-	dev_kfree_skb (skb);
-
-	if (tst == -1)
-		netif_stop_queue(dev);
-
- out:
-	return NETDEV_TX_OK;
-}
-
-static void
-ether1_xmit_done (struct net_device *dev)
-{
-	nop_t nop;
-	int caddr, tst;
-
-	caddr = priv(dev)->tx_tail;
-
-again:
-	ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
-
-	switch (nop.nop_command & CMD_MASK) {
-	case CMD_TDR:
-		/* special case */
-		if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS)
-				!= (unsigned short)I82586_NULL) {
-			ether1_writew(dev, SCB_CMDCUCSTART | SCB_CMDRXSTART, SCB_ADDR, scb_t,
-				    scb_command, NORMALIRQS);
-			writeb(CTRL_CA, REG_CONTROL);
-		}
-		priv(dev)->tx_tail = NOP_ADDR;
-		return;
-
-	case CMD_NOP:
-		if (nop.nop_link == caddr) {
-			if (priv(dev)->initialising == 0)
-				printk (KERN_WARNING "%s: strange command complete with no tx command!\n", dev->name);
-			else
-			        priv(dev)->initialising = 0;
-			return;
-		}
-		if (caddr == nop.nop_link)
-			return;
-		caddr = nop.nop_link;
-		goto again;
-
-	case CMD_TX:
-		if (nop.nop_status & STAT_COMPLETE)
-			break;
-		printk (KERN_ERR "%s: strange command complete without completed command\n", dev->name);
-		priv(dev)->restart = 1;
-		return;
-
-	default:
-		printk (KERN_WARNING "%s: strange command %d complete! (offset %04X)", dev->name,
-			nop.nop_command & CMD_MASK, caddr);
-		priv(dev)->restart = 1;
-		return;
-	}
-
-	while (nop.nop_status & STAT_COMPLETE) {
-		if (nop.nop_status & STAT_OK) {
-			dev->stats.tx_packets++;
-			dev->stats.collisions += (nop.nop_status & STAT_COLLISIONS);
-		} else {
-			dev->stats.tx_errors++;
-
-			if (nop.nop_status & STAT_COLLAFTERTX)
-				dev->stats.collisions++;
-			if (nop.nop_status & STAT_NOCARRIER)
-				dev->stats.tx_carrier_errors++;
-			if (nop.nop_status & STAT_TXLOSTCTS)
-				printk (KERN_WARNING "%s: cts lost\n", dev->name);
-			if (nop.nop_status & STAT_TXSLOWDMA)
-				dev->stats.tx_fifo_errors++;
-			if (nop.nop_status & STAT_COLLEXCESSIVE)
-				dev->stats.collisions += 16;
-		}
-
-		if (nop.nop_link == caddr) {
-			printk (KERN_ERR "%s: tx buffer chaining error: tx command points to itself\n", dev->name);
-			break;
-		}
-
-		caddr = nop.nop_link;
-		ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
-		if ((nop.nop_command & CMD_MASK) != CMD_NOP) {
-			printk (KERN_ERR "%s: tx buffer chaining error: no nop after tx command\n", dev->name);
-			break;
-		}
-
-		if (caddr == nop.nop_link)
-			break;
-
-		caddr = nop.nop_link;
-		ether1_readbuffer (dev, &nop, caddr, NOP_SIZE);
-		if ((nop.nop_command & CMD_MASK) != CMD_TX) {
-			printk (KERN_ERR "%s: tx buffer chaining error: no tx command after nop\n", dev->name);
-			break;
-		}
-	}
-	priv(dev)->tx_tail = caddr;
-
-	caddr = priv(dev)->tx_head;
-	tst = ether1_txalloc (dev, TX_SIZE + TBD_SIZE + NOP_SIZE + ETH_FRAME_LEN);
-	priv(dev)->tx_head = caddr;
-	if (tst != -1)
-		netif_wake_queue(dev);
-}
-
-static void
-ether1_recv_done (struct net_device *dev)
-{
-	int status;
-	int nexttail, rbdaddr;
-	rbd_t rbd;
-
-	do {
-		status = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_status, NORMALIRQS);
-		if ((status & RFD_COMPLETE) == 0)
-			break;
-
-		rbdaddr = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_rbdoffset, NORMALIRQS);
-		ether1_readbuffer (dev, &rbd, rbdaddr, RBD_SIZE);
-
-		if ((rbd.rbd_status & (RBD_EOF | RBD_ACNTVALID)) == (RBD_EOF | RBD_ACNTVALID)) {
-			int length = rbd.rbd_status & RBD_ACNT;
-			struct sk_buff *skb;
-
-			length = (length + 1) & ~1;
-			skb = dev_alloc_skb (length + 2);
-
-			if (skb) {
-				skb_reserve (skb, 2);
-
-				ether1_readbuffer (dev, skb_put (skb, length), rbd.rbd_bufl, length);
-
-				skb->protocol = eth_type_trans (skb, dev);
-				netif_rx (skb);
-				dev->stats.rx_packets++;
-			} else
-				dev->stats.rx_dropped++;
-		} else {
-			printk(KERN_WARNING "%s: %s\n", dev->name,
-				(rbd.rbd_status & RBD_EOF) ? "oversized packet" : "acnt not valid");
-			dev->stats.rx_dropped++;
-		}
-
-		nexttail = ether1_readw(dev, priv(dev)->rx_tail, rfd_t, rfd_link, NORMALIRQS);
-		/* nexttail should be rx_head */
-		if (nexttail != priv(dev)->rx_head)
-			printk(KERN_ERR "%s: receiver buffer chaining error (%04X != %04X)\n",
-				dev->name, nexttail, priv(dev)->rx_head);
-		ether1_writew(dev, RFD_CMDEL | RFD_CMDSUSPEND, nexttail, rfd_t, rfd_command, NORMALIRQS);
-		ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_command, NORMALIRQS);
-		ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_status, NORMALIRQS);
-		ether1_writew(dev, 0, priv(dev)->rx_tail, rfd_t, rfd_rbdoffset, NORMALIRQS);
-	
-		priv(dev)->rx_tail = nexttail;
-		priv(dev)->rx_head = ether1_readw(dev, priv(dev)->rx_head, rfd_t, rfd_link, NORMALIRQS);
-	} while (1);
-}
-
-static irqreturn_t
-ether1_interrupt (int irq, void *dev_id)
-{
-	struct net_device *dev = (struct net_device *)dev_id;
-	int status;
-
-	status = ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS);
-
-	if (status) {
-		ether1_writew(dev, status & (SCB_STRNR | SCB_STCNA | SCB_STFR | SCB_STCX),
-			    SCB_ADDR, scb_t, scb_command, NORMALIRQS);
-		writeb(CTRL_CA | CTRL_ACK, REG_CONTROL);
-		if (status & SCB_STCX) {
-			ether1_xmit_done (dev);
-		}
-		if (status & SCB_STCNA) {
-			if (priv(dev)->resetting == 0)
-				printk (KERN_WARNING "%s: CU went not ready ???\n", dev->name);
-			else
-				priv(dev)->resetting += 1;
-			if (ether1_readw(dev, SCB_ADDR, scb_t, scb_cbl_offset, NORMALIRQS)
-					!= (unsigned short)I82586_NULL) {
-				ether1_writew(dev, SCB_CMDCUCSTART, SCB_ADDR, scb_t, scb_command, NORMALIRQS);
-				writeb(CTRL_CA, REG_CONTROL);
-			}
-			if (priv(dev)->resetting == 2)
-				priv(dev)->resetting = 0;
-		}
-		if (status & SCB_STFR) {
-			ether1_recv_done (dev);
-		}
-		if (status & SCB_STRNR) {
-			if (ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS) & SCB_STRXSUSP) {
-				printk (KERN_WARNING "%s: RU went not ready: RU suspended\n", dev->name);
-				ether1_writew(dev, SCB_CMDRXRESUME, SCB_ADDR, scb_t, scb_command, NORMALIRQS);
-				writeb(CTRL_CA, REG_CONTROL);
-				dev->stats.rx_dropped++;	/* we suspended due to lack of buffer space */
-			} else
-				printk(KERN_WARNING "%s: RU went not ready: %04X\n", dev->name,
-					ether1_readw(dev, SCB_ADDR, scb_t, scb_status, NORMALIRQS));
-			printk (KERN_WARNING "RU ptr = %04X\n", ether1_readw(dev, SCB_ADDR, scb_t, scb_rfa_offset,
-						NORMALIRQS));
-		}
-	} else
-		writeb(CTRL_ACK, REG_CONTROL);
-
-	return IRQ_HANDLED;
-}
-
-static int
-ether1_close (struct net_device *dev)
-{
-	ether1_reset (dev);
-
-	free_irq(dev->irq, dev);
-
-	return 0;
-}
-
-/*
- * Set or clear the multicast filter for this adaptor.
- * num_addrs == -1	Promiscuous mode, receive all packets.
- * num_addrs == 0	Normal mode, clear multicast list.
- * num_addrs > 0	Multicast mode, receive normal and MC packets, and do
- *			best-effort filtering.
- */
-static void
-ether1_setmulticastlist (struct net_device *dev)
-{
-}
-
-/* ------------------------------------------------------------------------- */
-
-static void __devinit ether1_banner(void)
-{
-	static unsigned int version_printed = 0;
-
-	if (net_debug && version_printed++ == 0)
-		printk(KERN_INFO "%s", version);
-}
-
-static const struct net_device_ops ether1_netdev_ops = {
-	.ndo_open		= ether1_open,
-	.ndo_stop		= ether1_close,
-	.ndo_start_xmit		= ether1_sendpacket,
-	.ndo_set_multicast_list	= ether1_setmulticastlist,
-	.ndo_tx_timeout		= ether1_timeout,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_change_mtu		= eth_change_mtu,
-	.ndo_set_mac_address	= eth_mac_addr,
-};
-
-static int __devinit
-ether1_probe(struct expansion_card *ec, const struct ecard_id *id)
-{
-	struct net_device *dev;
-	int i, ret = 0;
-
-	ether1_banner();
-
-	ret = ecard_request_resources(ec);
-	if (ret)
-		goto out;
-
-	dev = alloc_etherdev(sizeof(struct ether1_priv));
-	if (!dev) {
-		ret = -ENOMEM;
-		goto release;
-	}
-
-	SET_NETDEV_DEV(dev, &ec->dev);
-
-	dev->irq = ec->irq;
-	priv(dev)->base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
-	if (!priv(dev)->base) {
-		ret = -ENOMEM;
-		goto free;
-	}
-
-	if ((priv(dev)->bus_type = ether1_reset(dev)) == 0) {
-		ret = -ENODEV;
-		goto free;
-	}
-
-	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = readb(IDPROM_ADDRESS + (i << 2));
-
-	if (ether1_init_2(dev)) {
-		ret = -ENODEV;
-		goto free;
-	}
-
-	dev->netdev_ops		= &ether1_netdev_ops;
-	dev->watchdog_timeo	= 5 * HZ / 100;
-
-	ret = register_netdev(dev);
-	if (ret)
-		goto free;
-
-	printk(KERN_INFO "%s: ether1 in slot %d, %pM\n",
-		dev->name, ec->slot_no, dev->dev_addr);
-    
-	ecard_set_drvdata(ec, dev);
-	return 0;
-
- free:
-	free_netdev(dev);
- release:
-	ecard_release_resources(ec);
- out:
-	return ret;
-}
-
-static void __devexit ether1_remove(struct expansion_card *ec)
-{
-	struct net_device *dev = ecard_get_drvdata(ec);
-
-	ecard_set_drvdata(ec, NULL);	
-
-	unregister_netdev(dev);
-	free_netdev(dev);
-	ecard_release_resources(ec);
-}
-
-static const struct ecard_id ether1_ids[] = {
-	{ MANU_ACORN, PROD_ACORN_ETHER1 },
-	{ 0xffff, 0xffff }
-};
-
-static struct ecard_driver ether1_driver = {
-	.probe		= ether1_probe,
-	.remove		= __devexit_p(ether1_remove),
-	.id_table	= ether1_ids,
-	.drv = {
-		.name	= "ether1",
-	},
-};
-
-static int __init ether1_init(void)
-{
-	return ecard_register_driver(&ether1_driver);
-}
-
-static void __exit ether1_exit(void)
-{
-	ecard_remove_driver(&ether1_driver);
-}
-
-module_init(ether1_init);
-module_exit(ether1_exit);
-
-MODULE_LICENSE("GPL");