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!

1 files changed, 1866 insertions, 0 deletions

diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c
new file mode 100644
index 00000000000..5c5f540da26
--- /dev/null
+++ b/drivers/net/cs89x0.c
@@ -0,0 +1,1866 @@
+/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
+ *  driver for linux.
+ */
+
+/*
+	Written 1996 by Russell Nelson, with reference to skeleton.c
+	written 1993-1994 by Donald Becker.
+
+	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 at nelson@crynwr.com, Crynwr
+        Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
+
+  Changelog:
+
+  Mike Cruse        : mcruse@cti-ltd.com
+                    : Changes for Linux 2.0 compatibility. 
+                    : Added dev_id parameter in net_interrupt(),
+                    : request_irq() and free_irq(). Just NULL for now.
+
+  Mike Cruse        : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros
+                    : in net_open() and net_close() so kerneld would know
+                    : that the module is in use and wouldn't eject the 
+                    : driver prematurely.
+
+  Mike Cruse        : Rewrote init_module() and cleanup_module using 8390.c
+                    : as an example. Disabled autoprobing in init_module(),
+                    : not a good thing to do to other devices while Linux
+                    : is running from all accounts.
+
+  Russ Nelson       : Jul 13 1998.  Added RxOnly DMA support.
+
+  Melody Lee        : Aug 10 1999.  Changes for Linux 2.2.5 compatibility. 
+                    : email: ethernet@crystal.cirrus.com
+
+  Alan Cox          : Removed 1.2 support, added 2.1 extra counters.
+
+  Andrew Morton     : andrewm@uow.edu.au
+                    : Kernel 2.3.48
+                    : Handle kmalloc() failures
+                    : Other resource allocation fixes
+                    : Add SMP locks
+                    : Integrate Russ Nelson's ALLOW_DMA functionality back in.
+                    : If ALLOW_DMA is true, make DMA runtime selectable
+                    : Folded in changes from Cirrus (Melody Lee
+                    : <klee@crystal.cirrus.com>)
+                    : Don't call netif_wake_queue() in net_send_packet()
+                    : Fixed an out-of-mem bug in dma_rx()
+                    : Updated Documentation/networking/cs89x0.txt
+
+  Andrew Morton     : andrewm@uow.edu.au / Kernel 2.3.99-pre1
+                    : Use skb_reserve to longword align IP header (two places)
+                    : Remove a delay loop from dma_rx()
+                    : Replace '100' with HZ
+                    : Clean up a couple of skb API abuses
+                    : Added 'cs89x0_dma=N' kernel boot option
+                    : Correctly initialise lp->lock in non-module compile
+
+  Andrew Morton     : andrewm@uow.edu.au / Kernel 2.3.99-pre4-1
+                    : MOD_INC/DEC race fix (see
+                    : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html)
+
+  Andrew Morton     : andrewm@uow.edu.au / Kernel 2.4.0-test7-pre2
+                    : Enhanced EEPROM support to cover more devices,
+                    :   abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch
+                    :   (Jason Gunthorpe <jgg@ualberta.ca>)
+
+  Andrew Morton     : Kernel 2.4.0-test11-pre4
+                    : Use dev->name in request_*() (Andrey Panin)
+                    : Fix an error-path memleak in init_module()
+                    : Preserve return value from request_irq()
+                    : Fix type of `media' module parm (Keith Owens)
+                    : Use SET_MODULE_OWNER()
+                    : Tidied up strange request_irq() abuse in net_open().
+
+  Andrew Morton     : Kernel 2.4.3-pre1
+                    : Request correct number of pages for DMA (Hugh Dickens)
+                    : Select PP_ChipID _after_ unregister_netdev in cleanup_module()
+                    :  because unregister_netdev() calls get_stats.
+                    : Make `version[]' __initdata
+                    : Uninlined the read/write reg/word functions.
+
+  Oskar Schirmer    : oskar@scara.com
+                    : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=)
+
+  Deepak Saxena     : dsaxena@plexity.net
+                    : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support
+
+*/
+
+/* Always include 'config.h' first in case the user wants to turn on
+   or override something. */
+#include <linux/config.h>
+#include <linux/module.h>
+
+/*
+ * Set this to zero to disable DMA code
+ *
+ * Note that even if DMA is turned off we still support the 'dma' and  'use_dma'
+ * module options so we don't break any startup scripts.
+ */
+#ifndef CONFIG_ARCH_IXDP2X01
+#define ALLOW_DMA	0
+#else
+#define ALLOW_DMA	1
+#endif
+
+/*
+ * Set this to zero to remove all the debug statements via
+ * dead code elimination
+ */
+#define DEBUGGING	1
+
+/*
+  Sources:
+
+	Crynwr packet driver epktisa.
+
+	Crystal Semiconductor data sheets.
+
+*/
+
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.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/skbuff.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#if ALLOW_DMA
+#include <asm/dma.h>
+#endif
+
+#include "cs89x0.h"
+
+static char version[] __initdata =
+"cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton <andrewm@uow.edu.au>\n";
+
+#define DRV_NAME "cs89x0"
+
+/* First, a few definitions that the brave might change.
+   A zero-terminated list of I/O addresses to be probed. Some special flags..
+      Addr & 1 = Read back the address port, look for signature and reset
+                 the page window before probing 
+      Addr & 3 = Reset the page window and probe 
+   The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
+   but it is possible that a Cirrus board could be plugged into the ISA
+   slots. */
+/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps 
+   them to system IRQ numbers. This mapping is card specific and is set to
+   the configuration of the Cirrus Eval board for this chip. */
+#ifdef CONFIG_ARCH_CLPS7500
+static unsigned int netcard_portlist[] __initdata =
+   { 0x80090303, 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
+static unsigned int cs8900_irq_map[] = {12,0,0,0};
+#elif defined(CONFIG_SH_HICOSH4)
+static unsigned int netcard_portlist[] __initdata =
+   { 0x0300, 0};
+static unsigned int cs8900_irq_map[] = {1,0,0,0};
+#elif defined(CONFIG_ARCH_IXDP2X01)
+#include <asm/irq.h>
+static unsigned int netcard_portlist[] __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0};
+static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0};
+#else
+static unsigned int netcard_portlist[] __initdata =
+   { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
+static unsigned int cs8900_irq_map[] = {10,11,12,5};
+#endif
+
+#if DEBUGGING
+static unsigned int net_debug = DEBUGGING;
+#else
+#define net_debug 0	/* gcc will remove all the debug code for us */
+#endif
+
+/* The number of low I/O ports used by the ethercard. */
+#define NETCARD_IO_EXTENT	16
+
+/* we allow the user to override various values normally set in the EEPROM */
+#define FORCE_RJ45	0x0001    /* pick one of these three */
+#define FORCE_AUI	0x0002
+#define FORCE_BNC	0x0004
+
+#define FORCE_AUTO	0x0010    /* pick one of these three */
+#define FORCE_HALF	0x0020
+#define FORCE_FULL	0x0030
+
+/* Information that need to be kept for each board. */
+struct net_local {
+	struct net_device_stats stats;
+	int chip_type;		/* one of: CS8900, CS8920, CS8920M */
+	char chip_revision;	/* revision letter of the chip ('A'...) */
+	int send_cmd;		/* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */
+	int auto_neg_cnf;	/* auto-negotiation word from EEPROM */
+	int adapter_cnf;	/* adapter configuration from EEPROM */
+	int isa_config;		/* ISA configuration from EEPROM */
+	int irq_map;		/* IRQ map from EEPROM */
+	int rx_mode;		/* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */
+	int curr_rx_cfg;	/* a copy of PP_RxCFG */
+	int linectl;		/* either 0 or LOW_RX_SQUELCH, depending on configuration. */
+	int send_underrun;	/* keep track of how many underruns in a row we get */
+	int force;		/* force various values; see FORCE* above. */
+	spinlock_t lock;
+#if ALLOW_DMA
+	int use_dma;		/* Flag: we're using dma */
+	int dma;		/* DMA channel */
+	int dmasize;		/* 16 or 64 */
+	unsigned char *dma_buff;	/* points to the beginning of the buffer */
+	unsigned char *end_dma_buff;	/* points to the end of the buffer */
+	unsigned char *rx_dma_ptr;	/* points to the next packet  */
+#endif
+};
+
+/* Index to functions, as function prototypes. */
+
+static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular);
+static int net_open(struct net_device *dev);
+static int net_send_packet(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static void set_multicast_list(struct net_device *dev);
+static void net_timeout(struct net_device *dev);
+static void net_rx(struct net_device *dev);
+static int net_close(struct net_device *dev);
+static struct net_device_stats *net_get_stats(struct net_device *dev);
+static void reset_chip(struct net_device *dev);
+static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer);
+static int get_eeprom_cksum(int off, int len, int *buffer);
+static int set_mac_address(struct net_device *dev, void *addr);
+static void count_rx_errors(int status, struct net_local *lp);
+#if ALLOW_DMA
+static void get_dma_channel(struct net_device *dev);
+static void release_dma_buff(struct net_local *lp);
+#endif
+
+/* Example routines you must write ;->. */
+#define tx_done(dev) 1
+
+/*
+ * Permit 'cs89x0_dma=N' in the kernel boot environment
+ */
+#if !defined(MODULE) && (ALLOW_DMA != 0)
+static int g_cs89x0_dma;
+
+static int __init dma_fn(char *str)
+{
+	g_cs89x0_dma = simple_strtol(str,NULL,0);
+	return 1;
+}
+
+__setup("cs89x0_dma=", dma_fn);
+#endif	/* !defined(MODULE) && (ALLOW_DMA != 0) */
+
+#ifndef MODULE
+static int g_cs89x0_media__force;
+
+static int __init media_fn(char *str)
+{
+	if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45;
+	else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI;
+	else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC;
+	return 1;
+}
+
+__setup("cs89x0_media=", media_fn);
+
+
+/* Check for a network adaptor of this type, and return '0' iff 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).
+   Return 0 on success.
+   */
+
+struct net_device * __init cs89x0_probe(int unit)
+{
+	struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
+	unsigned *port;
+	int err = 0;
+	int irq;
+	int io;
+
+	if (!dev)
+		return ERR_PTR(-ENODEV);
+
+	sprintf(dev->name, "eth%d", unit);
+	netdev_boot_setup_check(dev);
+	io = dev->base_addr;
+	irq = dev->irq;
+
+	if (net_debug)
+		printk("cs89x0:cs89x0_probe(0x%x)\n", io);
+
+	if (io > 0x1ff)	{	/* Check a single specified location. */
+		err = cs89x0_probe1(dev, io, 0);
+	} else if (io != 0) {	/* Don't probe at all. */
+		err = -ENXIO;
+	} else {
+		for (port = netcard_portlist; *port; port++) {
+			if (cs89x0_probe1(dev, *port, 0) == 0)
+				break;
+			dev->irq = irq;
+		}
+		if (!*port)
+			err = -ENODEV;
+	}
+	if (err)
+		goto out;
+	err = register_netdev(dev);
+	if (err)
+		goto out1;
+	return dev;
+out1:
+	outw(PP_ChipID, dev->base_addr + ADD_PORT);
+	release_region(dev->base_addr, NETCARD_IO_EXTENT);
+out:
+	free_netdev(dev);
+	printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected.  Be sure to disable PnP with SETUP\n");
+	return ERR_PTR(err);
+}
+#endif
+
+static int
+readreg(struct net_device *dev, int portno)
+{
+	outw(portno, dev->base_addr + ADD_PORT);
+	return inw(dev->base_addr + DATA_PORT);
+}
+
+static void
+writereg(struct net_device *dev, int portno, int value)
+{
+	outw(portno, dev->base_addr + ADD_PORT);
+	outw(value, dev->base_addr + DATA_PORT);
+}
+
+static int
+readword(struct net_device *dev, int portno)
+{
+	return inw(dev->base_addr + portno);
+}
+
+static void
+writeword(struct net_device *dev, int portno, int value)
+{
+	outw(value, dev->base_addr + portno);
+}
+
+static int __init
+wait_eeprom_ready(struct net_device *dev)
+{
+	int timeout = jiffies;
+	/* check to see if the EEPROM is ready, a timeout is used -
+	   just in case EEPROM is ready when SI_BUSY in the
+	   PP_SelfST is clear */
+	while(readreg(dev, PP_SelfST) & SI_BUSY)
+		if (jiffies - timeout >= 40)
+			return -1;
+	return 0;
+}
+
+static int __init
+get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
+{
+	int i;
+
+	if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len);
+	for (i = 0; i < len; i++) {
+		if (wait_eeprom_ready(dev) < 0) return -1;
+		/* Now send the EEPROM read command and EEPROM location to read */
+		writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD);
+		if (wait_eeprom_ready(dev) < 0) return -1;
+		buffer[i] = readreg(dev, PP_EEData);
+		if (net_debug > 3) printk("%04x ", buffer[i]);
+	}
+	if (net_debug > 3) printk("\n");
+        return 0;
+}
+
+static int  __init
+get_eeprom_cksum(int off, int len, int *buffer)
+{
+	int i, cksum;
+
+	cksum = 0;
+	for (i = 0; i < len; i++)
+		cksum += buffer[i];
+	cksum &= 0xffff;
+	if (cksum == 0)
+		return 0;
+	return -1;
+}
+
+/* This is the real probe routine.  Linux has a history of friendly device
+   probes on the ISA bus.  A good device probes avoids doing writes, and
+   verifies that the correct device exists and functions.
+   Return 0 on success.
+ */
+
+static int __init
+cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
+{
+	struct net_local *lp = netdev_priv(dev);
+	static unsigned version_printed;
+	int i;
+	unsigned rev_type = 0;
+	int eeprom_buff[CHKSUM_LEN];
+	int retval;
+
+	SET_MODULE_OWNER(dev);
+	/* Initialize the device structure. */
+	if (!modular) {
+		memset(lp, 0, sizeof(*lp));
+		spin_lock_init(&lp->lock);
+#ifndef MODULE
+#if ALLOW_DMA
+		if (g_cs89x0_dma) {
+			lp->use_dma = 1;
+			lp->dma = g_cs89x0_dma;
+			lp->dmasize = 16;	/* Could make this an option... */
+		}
+#endif
+		lp->force = g_cs89x0_media__force;
+#endif
+        }
+
+	/* Grab the region so we can find another board if autoIRQ fails. */
+	/* WTF is going on here? */
+	if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) {
+		printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n",
+				DRV_NAME, ioaddr, NETCARD_IO_EXTENT);
+		retval = -EBUSY;
+		goto out1;
+	}
+
+#ifdef CONFIG_SH_HICOSH4
+	/* truely reset the chip */
+	outw(0x0114, ioaddr + ADD_PORT);
+	outw(0x0040, ioaddr + DATA_PORT);
+#endif
+
+	/* if they give us an odd I/O address, then do ONE write to
+           the address port, to get it back to address zero, where we
+           expect to find the EISA signature word. An IO with a base of 0x3
+	   will skip the test for the ADD_PORT. */
+	if (ioaddr & 1) {
+		if (net_debug > 1)
+			printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr);
+	        if ((ioaddr & 2) != 2)
+	        	if ((inw((ioaddr & ~3)+ ADD_PORT) & ADD_MASK) != ADD_SIG) {
+				printk(KERN_ERR "%s: bad signature 0x%x\n",
+					dev->name, inw((ioaddr & ~3)+ ADD_PORT));
+		        	retval = -ENODEV;
+				goto out2;
+			}
+	}
+printk("PP_addr=0x%x\n", inw(ioaddr + ADD_PORT));
+
+	ioaddr &= ~3;
+	outw(PP_ChipID, ioaddr + ADD_PORT);
+
+	if (inw(ioaddr + DATA_PORT) != CHIP_EISA_ID_SIG) {
+		printk(KERN_ERR "%s: incorrect signature 0x%x\n",
+			dev->name, inw(ioaddr + DATA_PORT));
+  		retval = -ENODEV;
+  		goto out2;
+	}
+
+	/* Fill in the 'dev' fields. */
+	dev->base_addr = ioaddr;
+
+	/* get the chip type */
+	rev_type = readreg(dev, PRODUCT_ID_ADD);
+	lp->chip_type = rev_type &~ REVISON_BITS;
+	lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
+
+	/* Check the chip type and revision in order to set the correct send command
+	CS8920 revision C and CS8900 revision F can use the faster send. */
+	lp->send_cmd = TX_AFTER_381;
+	if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
+		lp->send_cmd = TX_NOW;
+	if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')
+		lp->send_cmd = TX_NOW;
+
+	if (net_debug  &&  version_printed++ == 0)
+		printk(version);
+
+	printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ",
+	       dev->name,
+	       lp->chip_type==CS8900?'0':'2',
+	       lp->chip_type==CS8920M?"M":"",
+	       lp->chip_revision,
+	       dev->base_addr);
+
+	reset_chip(dev);
+   
+        /* Here we read the current configuration of the chip. If there
+	   is no Extended EEPROM then the idea is to not disturb the chip
+	   configuration, it should have been correctly setup by automatic
+	   EEPROM read on reset. So, if the chip says it read the EEPROM
+	   the driver will always do *something* instead of complain that
+	   adapter_cnf is 0. */
+
+#ifdef CONFIG_SH_HICOSH4
+	if (1) {
+		/* For the HiCO.SH4 board, things are different: we don't
+		   have EEPROM, but there is some data in flash, so we go
+		   get it there directly (MAC). */
+		__u16 *confd;
+		short cnt;
+		if (((* (volatile __u32 *) 0xa0013ff0) & 0x00ffffff)
+			== 0x006c3000) {
+			confd = (__u16*) 0xa0013fc0;
+		} else {
+			confd = (__u16*) 0xa001ffc0;
+		}
+		cnt = (*confd++ & 0x00ff) >> 1;
+		while (--cnt > 0) {
+			__u16 j = *confd++;
+			
+			switch (j & 0x0fff) {
+			case PP_IA:
+				for (i = 0; i < ETH_ALEN/2; i++) {
+					dev->dev_addr[i*2] = confd[i] & 0xFF;
+					dev->dev_addr[i*2+1] = confd[i] >> 8;
+				}
+				break;
+			}
+			j = (j >> 12) + 1;
+			confd += j;
+			cnt -= j;
+		}
+	} else
+#endif
+
+        if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == 
+	      (EEPROM_OK|EEPROM_PRESENT)) {
+	        /* Load the MAC. */
+		for (i=0; i < ETH_ALEN/2; i++) {
+	                unsigned int Addr;
+			Addr = readreg(dev, PP_IA+i*2);
+		        dev->dev_addr[i*2] = Addr & 0xFF;
+		        dev->dev_addr[i*2+1] = Addr >> 8;
+		}
+   
+	   	/* Load the Adapter Configuration. 
+		   Note:  Barring any more specific information from some 
+		   other source (ie EEPROM+Schematics), we would not know 
+		   how to operate a 10Base2 interface on the AUI port. 
+		   However, since we  do read the status of HCB1 and use 
+		   settings that always result in calls to control_dc_dc(dev,0) 
+		   a BNC interface should work if the enable pin 
+		   (dc/dc converter) is on HCB1. It will be called AUI 
+		   however. */
+	   
+		lp->adapter_cnf = 0;
+		i = readreg(dev, PP_LineCTL);
+		/* Preserve the setting of the HCB1 pin. */
+		if ((i & (HCB1 | HCB1_ENBL)) ==  (HCB1 | HCB1_ENBL))
+			lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;
+		/* Save the sqelch bit */
+		if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH)
+			lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH;
+		/* Check if the card is in 10Base-t only mode */
+		if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0)
+			lp->adapter_cnf |=  A_CNF_10B_T | A_CNF_MEDIA_10B_T;
+		/* Check if the card is in AUI only mode */
+		if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY)
+			lp->adapter_cnf |=  A_CNF_AUI | A_CNF_MEDIA_AUI;
+		/* Check if the card is in Auto mode. */
+		if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET)
+			lp->adapter_cnf |=  A_CNF_AUI | A_CNF_10B_T | 
+			A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
+		
+		if (net_debug > 1)
+			printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n",
+					dev->name, i, lp->adapter_cnf);
+
+		/* IRQ. Other chips already probe, see below. */
+		if (lp->chip_type == CS8900) 
+			lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;
+	   
+		printk( "[Cirrus EEPROM] ");
+	}
+
+        printk("\n");
+   
+	/* First check to see if an EEPROM is attached. */
+#ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */
+	if (1) {
+		printk(KERN_NOTICE "cs89x0: No EEPROM on HiCO.SH4\n");
+	} else
+#endif
+	if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
+		printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
+	else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
+		printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n");
+        } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
+		/* Check if the chip was able to read its own configuration starting
+		   at 0 in the EEPROM*/
+		if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) !=
+		    (EEPROM_OK|EEPROM_PRESENT)) 
+                	printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
+		   
+        } else {
+		/* This reads an extended EEPROM that is not documented
+		   in the CS8900 datasheet. */
+		
+                /* get transmission control word  but keep the autonegotiation bits */
+                if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
+                /* Store adapter configuration */
+                if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2];
+                /* Store ISA configuration */
+                lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2];
+                dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8;
+
+                /* eeprom_buff has 32-bit ints, so we can't just memcpy it */
+                /* store the initial memory base address */
+                for (i = 0; i < ETH_ALEN/2; i++) {
+                        dev->dev_addr[i*2] = eeprom_buff[i];
+                        dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8;
+                }
+		if (net_debug > 1)
+			printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n",
+				dev->name, lp->adapter_cnf);
+        }
+
+        /* allow them to force multiple transceivers.  If they force multiple, autosense */
+        {
+		int count = 0;
+		if (lp->force & FORCE_RJ45)	{lp->adapter_cnf |= A_CNF_10B_T; count++; }
+		if (lp->force & FORCE_AUI) 	{lp->adapter_cnf |= A_CNF_AUI; count++; }
+		if (lp->force & FORCE_BNC)	{lp->adapter_cnf |= A_CNF_10B_2; count++; }
+		if (count > 1)			{lp->adapter_cnf |= A_CNF_MEDIA_AUTO; }
+		else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; }
+		else if (lp->force & FORCE_AUI)	{lp->adapter_cnf |= A_CNF_MEDIA_AUI; }
+		else if (lp->force & FORCE_BNC)	{lp->adapter_cnf |= A_CNF_MEDIA_10B_2; }
+        }
+
+	if (net_debug > 1)
+		printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n",
+			dev->name, lp->force, lp->adapter_cnf);
+
+        /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
+
+        /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
+
+        /* FIXME: we don't set the Ethernet address on the command line.  Use
+           ifconfig IFACE hw ether AABBCCDDEEFF */
+
+	printk(KERN_INFO "cs89x0 media %s%s%s",
+	       (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"",
+	       (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"",
+	       (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":"");
+
+	lp->irq_map = 0xffff;
+
+	/* If this is a CS8900 then no pnp soft */
+	if (lp->chip_type != CS8900 &&
+	    /* Check if the ISA IRQ has been set  */
+		(i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
+		 (i != 0 && i < CS8920_NO_INTS))) {
+		if (!dev->irq)
+			dev->irq = i;
+	} else {
+		i = lp->isa_config & INT_NO_MASK;
+		if (lp->chip_type == CS8900) {
+#ifdef CONFIG_ARCH_IXDP2X01
+		        i = cs8900_irq_map[0];
+#else
+			/* Translate the IRQ using the IRQ mapping table. */
+			if (i >= sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0]))
+				printk("\ncs89x0: invalid ISA interrupt number %d\n", i);
+			else
+				i = cs8900_irq_map[i];
+			
+			lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */
+		} else {
+			int irq_map_buff[IRQ_MAP_LEN/2];
+
+			if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA,
+					    IRQ_MAP_LEN/2,
+					    irq_map_buff) >= 0) {
+				if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT)
+					lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8);
+			}
+#endif
+		}
+		if (!dev->irq)
+			dev->irq = i;
+	}
+
+	printk(" IRQ %d", dev->irq);
+
+#if ALLOW_DMA
+	if (lp->use_dma) {
+		get_dma_channel(dev);
+		printk(", DMA %d", dev->dma);
+	}
+	else
+#endif
+	{
+		printk(", programmed I/O");
+	}
+
+	/* print the ethernet address. */
+	printk(", MAC");
+	for (i = 0; i < ETH_ALEN; i++)
+	{
+		printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
+	}
+
+	dev->open		= net_open;
+	dev->stop		= net_close;
+	dev->tx_timeout		= net_timeout;
+	dev->watchdog_timeo	= HZ;
+	dev->hard_start_xmit 	= net_send_packet;
+	dev->get_stats		= net_get_stats;
+	dev->set_multicast_list = set_multicast_list;
+	dev->set_mac_address 	= set_mac_address;
+
+	printk("\n");
+	if (net_debug)
+		printk("cs89x0_probe1() successful\n");
+	return 0;
+out2:
+	release_region(ioaddr & ~3, NETCARD_IO_EXTENT);
+out1:
+	return retval;
+}
+
+
+/*********************************
+ * This page contains DMA routines
+**********************************/
+
+#if ALLOW_DMA
+
+#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17)
+
+static void
+get_dma_channel(struct net_device *dev)
+{
+	struct net_local *lp = netdev_priv(dev);
+
+	if (lp->dma) {
+		dev->dma = lp->dma;
+		lp->isa_config |= ISA_RxDMA;
+	} else {
+		if ((lp->isa_config & ANY_ISA_DMA) == 0)
+			return;
+		dev->dma = lp->isa_config & DMA_NO_MASK;
+		if (lp->chip_type == CS8900)
+			dev->dma += 5;
+		if (dev->dma < 5 || dev->dma > 7) {
+			lp->isa_config &= ~ANY_ISA_DMA;
+			return;
+		}
+	}
+	return;
+}
+
+static void
+write_dma(struct net_device *dev, int chip_type, int dma)
+{
+	struct net_local *lp = netdev_priv(dev);
+	if ((lp->isa_config & ANY_ISA_DMA) == 0)
+		return;
+	if (chip_type == CS8900) {
+		writereg(dev, PP_CS8900_ISADMA, dma-5);
+	} else {
+		writereg(dev, PP_CS8920_ISADMA, dma);
+	}
+}
+
+static void
+set_dma_cfg(struct net_device *dev)
+{
+	struct net_local *lp = netdev_priv(dev);
+
+	if (lp->use_dma) {
+		if ((lp->isa_config & ANY_ISA_DMA) == 0) {
+			if (net_debug > 3)
+				printk("set_dma_cfg(): no DMA\n");
+			return;
+		}
+		if (lp->isa_config & ISA_RxDMA) {
+			lp->curr_rx_cfg |= RX_DMA_ONLY;
+			if (net_debug > 3)
+				printk("set_dma_cfg(): RX_DMA_ONLY\n");
+		} else {
+			lp->curr_rx_cfg |= AUTO_RX_DMA;	/* not that we support it... */
+			if (net_debug > 3)
+				printk("set_dma_cfg(): AUTO_RX_DMA\n");
+		}
+	}
+}
+
+static int
+dma_bufcfg(struct net_device *dev)
+{
+	struct net_local *lp = netdev_priv(dev);
+	if (lp->use_dma)
+		return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0;
+	else
+		return 0;
+}
+
+static int
+dma_busctl(struct net_device *dev)
+{
+	int retval = 0;
+	struct net_local *lp = netdev_priv(dev);
+	if (lp->use_dma) {
+		if (lp->isa_config & ANY_ISA_DMA)
+			retval |= RESET_RX_DMA; /* Reset the DMA pointer */
+		if (lp->isa_config & DMA_BURST)
+			retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */
+		if (lp->dmasize == 64)
+			retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */
+		retval |= MEMORY_ON;	/* we need memory enabled to use DMA. */
+	}
+	return retval;
+}
+
+static void
+dma_rx(struct net_device *dev)
+{
+	struct net_local *lp = netdev_priv(dev);
+	struct sk_buff *skb;
+	int status, length;
+	unsigned char *bp = lp->rx_dma_ptr;
+
+	status = bp[0] + (bp[1]<<8);
+	length = bp[2] + (bp[3]<<8);
+	bp += 4;
+	if (net_debug > 5) {
+		printk(	"%s: receiving DMA packet at %lx, status %x, length %x\n",
+			dev->name, (unsigned long)bp, status, length);
+	}
+	if ((status & RX_OK) == 0) {
+		count_rx_errors(status, lp);
+		goto skip_this_frame;
+	}
+
+	/* Malloc up new buffer. */
+	skb = dev_alloc_skb(length + 2);
+	if (skb == NULL) {
+		if (net_debug)	/* I don't think we want to do this to a stressed system */
+			printk("%s: Memory squeeze, dropping packet.\n", dev->name);
+		lp->stats.rx_dropped++;
+
+		/* AKPM: advance bp to the next frame */
+skip_this_frame:
+		bp += (length + 3) & ~3;
+		if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
+		lp->rx_dma_ptr = bp;
+		return;
+	}
+	skb_reserve(skb, 2);	/* longword align L3 header */
+	skb->dev = dev;
+
+	if (bp + length > lp->end_dma_buff) {
+		int semi_cnt = lp->end_dma_buff - bp;
+		memcpy(skb_put(skb,semi_cnt), bp, semi_cnt);
+		memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff,
+		       length - semi_cnt);
+	} else {
+		memcpy(skb_put(skb,length), bp, length);
+	}
+	bp += (length + 3) & ~3;
+	if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
+	lp->rx_dma_ptr = bp;
+
+	if (net_debug > 3) {
+		printk(	"%s: received %d byte DMA packet of type %x\n",
+			dev->name, length,
+			(skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+	}
+        skb->protocol=eth_type_trans(skb,dev);
+	netif_rx(skb);
+	dev->last_rx = jiffies;
+	lp->stats.rx_packets++;
+	lp->stats.rx_bytes += length;
+}
+
+#endif	/* ALLOW_DMA */
+
+void  __init reset_chip(struct net_device *dev)
+{
+#ifndef CONFIG_ARCH_IXDP2X01
+	struct net_local *lp = netdev_priv(dev);
+	int ioaddr = dev->base_addr;
+#endif
+	int reset_start_time;
+
+	writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET);
+
+	/* wait 30 ms */
+	msleep(30);
+
+#ifndef CONFIG_ARCH_IXDP2X01
+	if (lp->chip_type != CS8900) {
+		/* Hardware problem requires PNP registers to be reconfigured after a reset */
+		outw(PP_CS8920_ISAINT, ioaddr + ADD_PORT);
+		outb(dev->irq, ioaddr + DATA_PORT);
+		outb(0,      ioaddr + DATA_PORT + 1);
+
+		outw(PP_CS8920_ISAMemB, ioaddr + ADD_PORT);
+		outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT);
+		outb((dev->mem_start >> 8) & 0xff,   ioaddr + DATA_PORT + 1);
+	}
+#endif	/* IXDP2x01 */
+
+	/* Wait until the chip is reset */
+	reset_start_time = jiffies;
+	while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2)
+		;
+}
+
+
+static void
+control_dc_dc(struct net_device *dev, int on_not_off)
+{
+	struct net_local *lp = netdev_priv(dev);
+	unsigned int selfcontrol;
+	int timenow = jiffies;
+	/* control the DC to DC convertor in the SelfControl register.  
+	   Note: This is hooked up to a general purpose pin, might not
+	   always be a DC to DC convertor. */
+
+	selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */
+	if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off)
+		selfcontrol |= HCB1;
+	else
+		selfcontrol &= ~HCB1;
+	writereg(dev, PP_SelfCTL, selfcontrol);
+
+	/* Wait for the DC/DC converter to power up - 500ms */
+	while (jiffies - timenow < HZ)
+		;
+}
+
+#define DETECTED_NONE  0
+#define DETECTED_RJ45H 1
+#define DETECTED_RJ45F 2
+#define DETECTED_AUI   3
+#define DETECTED_BNC   4
+
+static int
+detect_tp(struct net_device *dev)
+{
+	struct net_local *lp = netdev_priv(dev);
+	int timenow = jiffies;
+	int fdx;
+
+	if (net_debug > 1) printk("%s: Attempting TP\n", dev->name);
+
+        /* If connected to another full duplex capable 10-Base-T card the link pulses
+           seem to be lost when the auto detect bit in the LineCTL is set.
+           To overcome this the auto detect bit will be cleared whilst testing the
+           10-Base-T interface.  This would not be necessary for the sparrow chip but
+           is simpler to do it anyway. */
+	writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY);
+	control_dc_dc(dev, 0);
+
+        /* Delay for the hardware to work out if the TP cable is present - 150ms */
+	for (timenow = jiffies; jiffies - timenow < 15; )
+                ;
+	if ((readreg(dev, PP_LineST) & LINK_OK) == 0)
+		return DETECTED_NONE;
+
+	if (lp->chip_type == CS8900) {
+                switch (lp->force & 0xf0) {
+#if 0
+                case FORCE_AUTO:
+			printk("%s: cs8900 doesn't autonegotiate\n",dev->name);
+                        return DETECTED_NONE;
+#endif
+		/* CS8900 doesn't support AUTO, change to HALF*/
+                case FORCE_AUTO:
+			lp->force &= ~FORCE_AUTO;
+                        lp->force |= FORCE_HALF;
+			break;
+		case FORCE_HALF:
+			break;
+                case FORCE_FULL:
+			writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900);
+			break;
+                }
+		fdx = readreg(dev, PP_TestCTL) & FDX_8900;
+	} else {
+		switch (lp->force & 0xf0) {
+		case FORCE_AUTO:
+			lp->auto_neg_cnf = AUTO_NEG_ENABLE;
+			break;
+		case FORCE_HALF:
+			lp->auto_neg_cnf = 0;
+			break;
+		case FORCE_FULL:
+			lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;
+			break;
+                }
+
+		writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);
+
+		if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {
+			printk(KERN_INFO "%s: negotiating duplex...\n",dev->name);
+			while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) {
+				if (jiffies - timenow > 4000) {
+					printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n");
+					break;
+				}
+			}
+		}
+		fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE;
+	}
+	if (fdx)
+		return DETECTED_RJ45F;
+	else
+		return DETECTED_RJ45H;
+}
+
+/* send a test packet - return true if carrier bits are ok */
+static int
+send_test_pkt(struct net_device *dev)
+{
+	char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0,
+				 0, 46, /* A 46 in network order */
+				 0, 0, /* DSAP=0 & SSAP=0 fields */
+				 0xf3, 0 /* Control (Test Req + P bit set) */ };
+	long timenow = jiffies;
+
+	writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON);
+
+	memcpy(test_packet,          dev->dev_addr, ETH_ALEN);
+	memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN);
+
+        writeword(dev, TX_CMD_PORT, TX_AFTER_ALL);
+        writeword(dev, TX_LEN_PORT, ETH_ZLEN);
+
+	/* Test to see if the chip has allocated memory for the packet */
+	while (jiffies - timenow < 5)
+		if (r