8390: Move the 8390 related drivers

Moves the drivers for the National Semi-conductor 8390 chipset into
drivers/net/ethernet/8390/ and the necessary Kconfig and Makefile
changes.

CC: Donald Becker <becker@scyld.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Alain Malek <alain.malek@cryogen.com>
CC: Peter De Schrijver <p2@mind.be>
CC: "David Huggins-Daines" <dhd@debian.org>
CC: Wim Dumon <wimpie@kotnet.org>
CC: Yoshinori Sato <ysato@users.sourceforge.jp>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 685 insertions, 0 deletions

diff --git a/drivers/net/ethernet/8390/ne-h8300.c b/drivers/net/ethernet/8390/ne-h8300.c
new file mode 100644
index 000000000000..7298a34bc795
--- /dev/null
+++ b/drivers/net/ethernet/8390/ne-h8300.c
@@ -0,0 +1,685 @@
+/* ne-h8300.c: A NE2000 clone on H8/300 driver for linux. */
+/*
+    original ne.c
+    Written 1992-94 by Donald Becker.
+
+    Copyright 1993 United States Government as represented by the
+    Director, National Security Agency.
+
+    This software may be used and distributed according to the terms
+    of the GNU General Public License, incorporated herein by reference.
+
+    The author may be reached as becker@scyld.com, or C/O
+    Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
+
+    H8/300 modified
+    Yoshinori Sato <ysato@users.sourceforge.jp>
+*/
+
+static const char version1[] =
+"ne-h8300.c:v1.00 2004/04/11 ysato\n";
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/jiffies.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define EI_SHIFT(x)	(ei_local->reg_offset[x])
+
+#include "8390.h"
+
+#define DRV_NAME "ne-h8300"
+
+/* Some defines that people can play with if so inclined. */
+
+/* Do we perform extra sanity checks on stuff ? */
+/* #define NE_SANITY_CHECK */
+
+/* Do we implement the read before write bugfix ? */
+/* #define NE_RW_BUGFIX */
+
+/* Do we have a non std. amount of memory? (in units of 256 byte pages) */
+/* #define PACKETBUF_MEMSIZE	0x40 */
+
+/* A zero-terminated list of I/O addresses to be probed at boot. */
+
+/* ---- No user-serviceable parts below ---- */
+
+static const char version[] =
+    "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
+
+#include "lib8390.c"
+
+#define NE_BASE	 (dev->base_addr)
+#define NE_CMD	 	0x00
+#define NE_DATAPORT	(ei_status.word16?0x20:0x10)	/* NatSemi-defined port window offset. */
+#define NE_RESET	(ei_status.word16?0x3f:0x1f)	/* Issue a read to reset, a write to clear. */
+#define NE_IO_EXTENT	(ei_status.word16?0x40:0x20)
+
+#define NESM_START_PG	0x40	/* First page of TX buffer */
+#define NESM_STOP_PG	0x80	/* Last page +1 of RX ring */
+
+static int ne_probe1(struct net_device *dev, int ioaddr);
+
+static int ne_open(struct net_device *dev);
+static int ne_close(struct net_device *dev);
+
+static void ne_reset_8390(struct net_device *dev);
+static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
+			  int ring_page);
+static void ne_block_input(struct net_device *dev, int count,
+			  struct sk_buff *skb, int ring_offset);
+static void ne_block_output(struct net_device *dev, const int count,
+		const unsigned char *buf, const int start_page);
+
+
+static u32 reg_offset[16];
+
+static int __init init_reg_offset(struct net_device *dev,unsigned long base_addr)
+{
+	struct ei_device *ei_local = netdev_priv(dev);
+	int i;
+	unsigned char bus_width;
+
+	bus_width = *(volatile unsigned char *)ABWCR;
+	bus_width &= 1 << ((base_addr >> 21) & 7);
+
+	for (i = 0; i < ARRAY_SIZE(reg_offset); i++)
+		if (bus_width == 0)
+			reg_offset[i] = i * 2 + 1;
+		else
+			reg_offset[i] = i;
+
+	ei_local->reg_offset = reg_offset;
+	return 0;
+}
+
+static int __initdata h8300_ne_count = 0;
+#ifdef CONFIG_H8300H_H8MAX
+static unsigned long __initdata h8300_ne_base[] = { 0x800600 };
+static int h8300_ne_irq[] = {EXT_IRQ4};
+#endif
+#ifdef CONFIG_H8300H_AKI3068NET
+static unsigned long __initdata h8300_ne_base[] = { 0x200000 };
+static int h8300_ne_irq[] = {EXT_IRQ5};
+#endif
+
+static inline int init_dev(struct net_device *dev)
+{
+	if (h8300_ne_count < ARRAY_SIZE(h8300_ne_base)) {
+		dev->base_addr = h8300_ne_base[h8300_ne_count];
+		dev->irq       = h8300_ne_irq[h8300_ne_count];
+		h8300_ne_count++;
+		return 0;
+	} else
+		return -ENODEV;
+}
+
+/*  Probe for various non-shared-memory ethercards.
+
+   NEx000-clone boards have a Station Address PROM (SAPROM) in the packet
+   buffer memory space.  NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of
+   the SAPROM, while other supposed NE2000 clones must be detected by their
+   SA prefix.
+
+   Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
+   mode results in doubled values, which can be detected and compensated for.
+
+   The probe is also responsible for initializing the card and filling
+   in the 'dev' and 'ei_status' structures.
+
+   We use the minimum memory size for some ethercard product lines, iff we can't
+   distinguish models.  You can increase the packet buffer size by setting
+   PACKETBUF_MEMSIZE.  Reported Cabletron packet buffer locations are:
+	E1010   starts at 0x100 and ends at 0x2000.
+	E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory")
+	E2010	 starts at 0x100 and ends at 0x4000.
+	E2010-x starts at 0x100 and ends at 0xffff.  */
+
+static int __init do_ne_probe(struct net_device *dev)
+{
+	unsigned int base_addr = dev->base_addr;
+
+	/* First check any supplied i/o locations. User knows best. <cough> */
+	if (base_addr > 0x1ff)	/* Check a single specified location. */
+		return ne_probe1(dev, base_addr);
+	else if (base_addr != 0)	/* Don't probe at all. */
+		return -ENXIO;
+
+	return -ENODEV;
+}
+
+static void cleanup_card(struct net_device *dev)
+{
+	free_irq(dev->irq, dev);
+	release_region(dev->base_addr, NE_IO_EXTENT);
+}
+
+#ifndef MODULE
+struct net_device * __init ne_probe(int unit)
+{
+	struct net_device *dev = ____alloc_ei_netdev(0);
+	int err;
+
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	if (init_dev(dev))
+		return ERR_PTR(-ENODEV);
+
+	sprintf(dev->name, "eth%d", unit);
+	netdev_boot_setup_check(dev);
+
+	err = init_reg_offset(dev, dev->base_addr);
+	if (err)
+		goto out;
+
+	err = do_ne_probe(dev);
+	if (err)
+		goto out;
+	return dev;
+out:
+	free_netdev(dev);
+	return ERR_PTR(err);
+}
+#endif
+
+static const struct net_device_ops ne_netdev_ops = {
+	.ndo_open		= ne_open,
+	.ndo_stop		= ne_close,
+
+	.ndo_start_xmit		= __ei_start_xmit,
+	.ndo_tx_timeout		= __ei_tx_timeout,
+	.ndo_get_stats		= __ei_get_stats,
+	.ndo_set_multicast_list = __ei_set_multicast_list,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= __ei_poll,
+#endif
+};
+
+static int __init ne_probe1(struct net_device *dev, int ioaddr)
+{
+	int i;
+	unsigned char SA_prom[16];
+	int wordlength = 2;
+	const char *name = NULL;
+	int start_page, stop_page;
+	int reg0, ret;
+	static unsigned version_printed;
+	struct ei_device *ei_local = netdev_priv(dev);
+	unsigned char bus_width;
+
+	if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME))
+		return -EBUSY;
+
+	reg0 = inb_p(ioaddr);
+	if (reg0 == 0xFF) {
+		ret = -ENODEV;
+		goto err_out;
+	}
+
+	/* Do a preliminary verification that we have a 8390. */
+	{
+		int regd;
+		outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
+		regd = inb_p(ioaddr + EI_SHIFT(0x0d));
+		outb_p(0xff, ioaddr + EI_SHIFT(0x0d));
+		outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
+		inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
+		if (inb_p(ioaddr + EN0_COUNTER0) != 0) {
+			outb_p(reg0, ioaddr + EI_SHIFT(0));
+			outb_p(regd, ioaddr + EI_SHIFT(0x0d));	/* Restore the old values. */
+			ret = -ENODEV;
+			goto err_out;
+		}
+	}
+
+	if (ei_debug  &&  version_printed++ == 0)
+		printk(KERN_INFO "%s", version1);
+
+	printk(KERN_INFO "NE*000 ethercard probe at %08x:", ioaddr);
+
+	/* Read the 16 bytes of station address PROM.
+	   We must first initialize registers, similar to NS8390_init(eifdev, 0).
+	   We can't reliably read the SAPROM address without this.
+	   (I learned the hard way!). */
+	{
+		struct {unsigned char value, offset; } program_seq[] =
+		{
+			{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
+			{0x48,	EN0_DCFG},	/* Set byte-wide (0x48) access. */
+			{0x00,	EN0_RCNTLO},	/* Clear the count regs. */
+			{0x00,	EN0_RCNTHI},
+			{0x00,	EN0_IMR},	/* Mask completion irq. */
+			{0xFF,	EN0_ISR},
+			{E8390_RXOFF, EN0_RXCR},	/* 0x20  Set to monitor */
+			{E8390_TXOFF, EN0_TXCR},	/* 0x02  and loopback mode. */
+			{32,	EN0_RCNTLO},
+			{0x00,	EN0_RCNTHI},
+			{0x00,	EN0_RSARLO},	/* DMA starting at 0x0000. */
+			{0x00,	EN0_RSARHI},
+			{E8390_RREAD+E8390_START, E8390_CMD},
+		};
+
+		for (i = 0; i < ARRAY_SIZE(program_seq); i++)
+			outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
+
+	}
+	bus_width = *(volatile unsigned char *)ABWCR;
+	bus_width &= 1 << ((ioaddr >> 21) & 7);
+	ei_status.word16 = (bus_width == 0); /* temporary setting */
+	for(i = 0; i < 16 /*sizeof(SA_prom)*/; i++) {
+		SA_prom[i] = inb_p(ioaddr + NE_DATAPORT);
+		inb_p(ioaddr + NE_DATAPORT); /* dummy read */
+	}
+
+	start_page = NESM_START_PG;
+	stop_page = NESM_STOP_PG;
+
+	if (bus_width)
+		wordlength = 1;
+	else
+		outb_p(0x49, ioaddr + EN0_DCFG);
+
+	/* Set up the rest of the parameters. */
+	name = (wordlength == 2) ? "NE2000" : "NE1000";
+
+	if (! dev->irq) {
+		printk(" failed to detect IRQ line.\n");
+		ret = -EAGAIN;
+		goto err_out;
+	}
+
+	/* Snarf the interrupt now.  There's no point in waiting since we cannot
+	   share and the board will usually be enabled. */
+	ret = request_irq(dev->irq, __ei_interrupt, 0, name, dev);
+	if (ret) {
+		printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret);
+		goto err_out;
+	}
+
+	dev->base_addr = ioaddr;
+
+	for(i = 0; i < ETHER_ADDR_LEN; i++)
+		dev->dev_addr[i] = SA_prom[i];
+	printk(" %pM\n", dev->dev_addr);
+
+	printk("%s: %s found at %#x, using IRQ %d.\n",
+		dev->name, name, ioaddr, dev->irq);
+
+	ei_status.name = name;
+	ei_status.tx_start_page = start_page;
+	ei_status.stop_page = stop_page;
+	ei_status.word16 = (wordlength == 2);
+
+	ei_status.rx_start_page = start_page + TX_PAGES;
+#ifdef PACKETBUF_MEMSIZE
+	 /* Allow the packet buffer size to be overridden by know-it-alls. */
+	ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
+#endif
+
+	ei_status.reset_8390 = &ne_reset_8390;
+	ei_status.block_input = &ne_block_input;
+	ei_status.block_output = &ne_block_output;
+	ei_status.get_8390_hdr = &ne_get_8390_hdr;
+	ei_status.priv = 0;
+
+	dev->netdev_ops = &ne_netdev_ops;
+
+	__NS8390_init(dev, 0);
+
+	ret = register_netdev(dev);
+	if (ret)
+		goto out_irq;
+	return 0;
+out_irq:
+	free_irq(dev->irq, dev);
+err_out:
+	release_region(ioaddr, NE_IO_EXTENT);
+	return ret;
+}
+
+static int ne_open(struct net_device *dev)
+{
+	__ei_open(dev);
+	return 0;
+}
+
+static int ne_close(struct net_device *dev)
+{
+	if (ei_debug > 1)
+		printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
+	__ei_close(dev);
+	return 0;
+}
+
+/* Hard reset the card.  This used to pause for the same period that a
+   8390 reset command required, but that shouldn't be necessary. */
+
+static void ne_reset_8390(struct net_device *dev)
+{
+	unsigned long reset_start_time = jiffies;
+	struct ei_device *ei_local = netdev_priv(dev);
+
+	if (ei_debug > 1)
+		printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies);
+
+	/* DON'T change these to inb_p/outb_p or reset will fail on clones. */
+	outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
+
+	ei_status.txing = 0;
+	ei_status.dmaing = 0;
+
+	/* This check _should_not_ be necessary, omit eventually. */
+	while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0)
+		if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
+			printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name);
+			break;
+		}
+	outb_p(ENISR_RESET, NE_BASE + EN0_ISR);	/* Ack intr. */
+}
+
+/* Grab the 8390 specific header. Similar to the block_input routine, but
+   we don't need to be concerned with ring wrap as the header will be at
+   the start of a page, so we optimize accordingly. */
+
+static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+{
+	struct ei_device *ei_local = netdev_priv(dev);
+	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
+
+	if (ei_status.dmaing)
+	{
+		printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr "
+			"[DMAstat:%d][irqlock:%d].\n",
+			dev->name, ei_status.dmaing, ei_status.irqlock);
+		return;
+	}
+
+	ei_status.dmaing |= 0x01;
+	outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD);
+	outb_p(sizeof(struct e8390_pkt_hdr), NE_BASE + EN0_RCNTLO);
+	outb_p(0, NE_BASE + EN0_RCNTHI);
+	outb_p(0, NE_BASE + EN0_RSARLO);		/* On page boundary */
+	outb_p(ring_page, NE_BASE + EN0_RSARHI);
+	outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
+
+	if (ei_status.word16) {
+		int len;
+		unsigned short *p = (unsigned short *)hdr;
+		for (len = sizeof(struct e8390_pkt_hdr)>>1; len > 0; len--)
+			*p++ = inw(NE_BASE + NE_DATAPORT);
+	} else
+		insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr));
+
+	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);	/* Ack intr. */
+	ei_status.dmaing &= ~0x01;
+
+	le16_to_cpus(&hdr->count);
+}
+
+/* Block input and output, similar to the Crynwr packet driver.  If you
+   are porting to a new ethercard, look at the packet driver source for hints.
+   The NEx000 doesn't share the on-board packet memory -- you have to put
+   the packet out through the "remote DMA" dataport using outb. */
+
+static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
+{
+	struct ei_device *ei_local = netdev_priv(dev);
+#ifdef NE_SANITY_CHECK
+	int xfer_count = count;
+#endif
+	char *buf = skb->data;
+
+	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
+	if (ei_status.dmaing)
+	{
+		printk(KERN_EMERG "%s: DMAing conflict in ne_block_input "
+			"[DMAstat:%d][irqlock:%d].\n",
+			dev->name, ei_status.dmaing, ei_status.irqlock);
+		return;
+	}
+	ei_status.dmaing |= 0x01;
+	outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD);
+	outb_p(count & 0xff, NE_BASE + EN0_RCNTLO);
+	outb_p(count >> 8, NE_BASE + EN0_RCNTHI);
+	outb_p(ring_offset & 0xff, NE_BASE + EN0_RSARLO);
+	outb_p(ring_offset >> 8, NE_BASE + EN0_RSARHI);
+	outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
+	if (ei_status.word16)
+	{
+		int len;
+		unsigned short *p = (unsigned short *)buf;
+		for (len = count>>1; len > 0; len--)
+			*p++ = inw(NE_BASE + NE_DATAPORT);
+		if (count & 0x01)
+		{
+			buf[count-1] = inb(NE_BASE + NE_DATAPORT);
+#ifdef NE_SANITY_CHECK
+			xfer_count++;
+#endif
+		}
+	} else {
+		insb(NE_BASE + NE_DATAPORT, buf, count);
+	}
+
+#ifdef NE_SANITY_CHECK
+	/* This was for the ALPHA version only, but enough people have
+	   been encountering problems so it is still here.  If you see
+	   this message you either 1) have a slightly incompatible clone
+	   or 2) have noise/speed problems with your bus. */
+
+	if (ei_debug > 1)
+	{
+		/* DMA termination address check... */
+		int addr, tries = 20;
+		do {
+			/* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
+			   -- it's broken for Rx on some cards! */
+			int high = inb_p(NE_BASE + EN0_RSARHI);
+			int low = inb_p(NE_BASE + EN0_RSARLO);
+			addr = (high << 8) + low;
+			if (((ring_offset + xfer_count) & 0xff) == low)
+				break;
+		} while (--tries > 0);
+	 	if (tries <= 0)
+			printk(KERN_WARNING "%s: RX transfer address mismatch,"
+				"%#4.4x (expected) vs. %#4.4x (actual).\n",
+				dev->name, ring_offset + xfer_count, addr);
+	}
+#endif
+	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);	/* Ack intr. */
+	ei_status.dmaing &= ~0x01;
+}
+
+static void ne_block_output(struct net_device *dev, int count,
+		const unsigned char *buf, const int start_page)
+{
+	struct ei_device *ei_local = netdev_priv(dev);
+	unsigned long dma_start;
+#ifdef NE_SANITY_CHECK
+	int retries = 0;
+#endif
+
+	/* Round the count up for word writes.  Do we need to do this?
+	   What effect will an odd byte count have on the 8390?
+	   I should check someday. */
+
+	if (ei_status.word16 && (count & 0x01))
+		count++;
+
+	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
+	if (ei_status.dmaing)
+	{
+		printk(KERN_EMERG "%s: DMAing conflict in ne_block_output."
+			"[DMAstat:%d][irqlock:%d]\n",
+			dev->name, ei_status.dmaing, ei_status.irqlock);
+		return;
+	}
+	ei_status.dmaing |= 0x01;
+	/* We should already be in page 0, but to be safe... */
+	outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, NE_BASE + NE_CMD);
+
+#ifdef NE_SANITY_CHECK
+retry:
+#endif
+
+#ifdef NE8390_RW_BUGFIX
+	/* Handle the read-before-write bug the same way as the
+	   Crynwr packet driver -- the NatSemi method doesn't work.
+	   Actually this doesn't always work either, but if you have
+	   problems with your NEx000 this is better than nothing! */
+
+	outb_p(0x42, NE_BASE + EN0_RCNTLO);
+	outb_p(0x00, NE_BASE + EN0_RCNTHI);
+	outb_p(0x42, NE_BASE + EN0_RSARLO);
+	outb_p(0x00, NE_BASE + EN0_RSARHI);
+	outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
+	/* Make certain that the dummy read has occurred. */
+	udelay(6);
+#endif
+
+	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);
+
+	/* Now the normal output. */
+	outb_p(count & 0xff, NE_BASE + EN0_RCNTLO);
+	outb_p(count >> 8,   NE_BASE + EN0_RCNTHI);
+	outb_p(0x00, NE_BASE + EN0_RSARLO);
+	outb_p(start_page, NE_BASE + EN0_RSARHI);
+
+	outb_p(E8390_RWRITE+E8390_START, NE_BASE + NE_CMD);
+	if (ei_status.word16) {
+		int len;
+		unsigned short *p = (unsigned short *)buf;
+		for (len = count>>1; len > 0; len--)
+			outw(*p++, NE_BASE + NE_DATAPORT);
+	} else {
+		outsb(NE_BASE + NE_DATAPORT, buf, count);
+	}
+
+	dma_start = jiffies;
+
+#ifdef NE_SANITY_CHECK
+	/* This was for the ALPHA version only, but enough people have
+	   been encountering problems so it is still here. */
+
+	if (ei_debug > 1)
+	{
+		/* DMA termination address check... */
+		int addr, tries = 20;
+		do {
+			int high = inb_p(NE_BASE + EN0_RSARHI);
+			int low = inb_p(NE_BASE + EN0_RSARLO);
+			addr = (high << 8) + low;
+			if ((start_page << 8) + count == addr)
+				break;
+		} while (--tries > 0);
+
+		if (tries <= 0)
+		{
+			printk(KERN_WARNING "%s: Tx packet transfer address mismatch,"
+				"%#4.4x (expected) vs. %#4.4x (actual).\n",
+				dev->name, (start_page << 8) + count, addr);
+			if (retries++ == 0)
+				goto retry;
+		}
+	}
+#endif
+
+	while ((inb_p(NE_BASE + EN0_ISR) & ENISR_RDC) == 0)
+		if (time_after(jiffies, dma_start + 2*HZ/100)) {		/* 20ms */
+			printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
+			ne_reset_8390(dev);
+			__NS8390_init(dev,1);
+			break;
+		}
+
+	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);	/* Ack intr. */
+	ei_status.dmaing &= ~0x01;
+}
+
+
+#ifdef MODULE
+#define MAX_NE_CARDS	1	/* Max number of NE cards per module */
+static struct net_device *dev_ne[MAX_NE_CARDS];
+static int io[MAX_NE_CARDS];
+static int irq[MAX_NE_CARDS];
+static int bad[MAX_NE_CARDS];	/* 0xbad = bad sig or no reset ack */
+
+module_param_array(io, int, NULL, 0);
+module_param_array(irq, int, NULL, 0);
+module_param_array(bad, int, NULL, 0);
+MODULE_PARM_DESC(io, "I/O base address(es)");
+MODULE_PARM_DESC(irq, "IRQ number(s)");
+MODULE_DESCRIPTION("H8/300 NE2000 Ethernet driver");
+MODULE_LICENSE("GPL");
+
+/* This is set up so that no ISA autoprobe takes place. We can't guarantee
+that the ne2k probe is the last 8390 based probe to take place (as it
+is at boot) and so the probe will get confused by any other 8390 cards.
+ISA device autoprobes on a running machine are not recommended anyway. */
+
+int init_module(void)
+{
+	int this_dev, found = 0;
+	int err;
+
+	for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
+		struct net_device *dev = ____alloc_ei_netdev(0);
+		if (!dev)
+			break;
+		if (io[this_dev]) {
+			dev->irq = irq[this_dev];
+			dev->mem_end = bad[this_dev];
+			dev->base_addr = io[this_dev];
+		} else {
+			dev->base_addr = h8300_ne_base[this_dev];
+			dev->irq = h8300_ne_irq[this_dev];
+		}
+		err = init_reg_offset(dev, dev->base_addr);
+		if (!err) {
+			if (do_ne_probe(dev) == 0) {
+				dev_ne[found++] = dev;
+				continue;
+			}
+		}
+		free_netdev(dev);
+		if (found)
+			break;
+		if (io[this_dev] != 0)
+			printk(KERN_WARNING "ne.c: No NE*000 card found at i/o = %#x\n", dev->base_addr);
+		else
+			printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n");
+		return -ENXIO;
+	}
+	if (found)
+		return 0;
+	return -ENODEV;
+}
+
+void cleanup_module(void)
+{
+	int this_dev;
+
+	for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
+		struct net_device *dev = dev_ne[this_dev];
+		if (dev) {
+			unregister_netdev(dev);
+			cleanup_card(dev);
+			free_netdev(dev);
+		}
+	}
+}
+#endif /* MODULE */