Initial commit; kernel source import

drivers/net/ethernet/i825xx/Kconfig

@@ -0,0 +1,69 @@
+#
+# Intel 82596/82593/82596 network device configuration
+#
+
+config NET_VENDOR_I825XX
+	bool "Intel (82586/82593/82596) devices"
+	default y
+	depends on NET_VENDOR_INTEL
+	---help---
+	  If you have a network (Ethernet) card belonging to this class, say Y
+	  and read the Ethernet-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  Note that the answer to this question does not directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about these devices. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_I825XX
+
+config ARM_ETHER1
+	tristate "Acorn Ether1 support"
+	depends on ARM && ARCH_ACORN
+	---help---
+	  If you have an Acorn system with one of these (AKA25) network cards,
+	  you should say Y to this option if you wish to use it with Linux.
+
+config BVME6000_NET
+	tristate "BVME6000 Ethernet support"
+	depends on BVME6000
+	---help---
+	  This is the driver for the Ethernet interface on BVME4000 and
+	  BVME6000 VME boards.  Say Y here to include the driver for this chip
+	  in your kernel.
+	  To compile this driver as a module, choose M here.
+
+config LASI_82596
+	tristate "Lasi ethernet"
+	depends on GSC
+	---help---
+	  Say Y here to support the builtin Intel 82596 ethernet controller
+	  found in Hewlett-Packard PA-RISC machines with 10Mbit ethernet.
+
+config MVME16x_NET
+	tristate "MVME16x Ethernet support"
+	depends on MVME16x
+	---help---
+	  This is the driver for the Ethernet interface on the Motorola
+	  MVME162, 166, 167, 172 and 177 boards.  Say Y here to include the
+	  driver for this chip in your kernel.
+	  To compile this driver as a module, choose M here.
+
+config SNI_82596
+	tristate "SNI RM ethernet"
+	depends on SNI_RM
+	---help---
+	  Say Y here to support the on-board Intel 82596 ethernet controller
+	  built into SNI RM machines.
+
+config SUN3_82586
+	bool "Sun3 on-board Intel 82586 support"
+	depends on SUN3
+	---help---
+	  This driver enables support for the on-board Intel 82586 based
+	  Ethernet adapter found on Sun 3/1xx and 3/2xx motherboards.  Note
+	  that this driver does not support 82586-based adapters on additional
+	  VME boards.
+
+endif # NET_VENDOR_I825XX

drivers/net/ethernet/i825xx/Makefile

@@ -0,0 +1,10 @@
+#
+# Makefile for the Intel 82586/82593/82596 chipset device drivers.
+#
+
+obj-$(CONFIG_ARM_ETHER1) += ether1.o
+obj-$(CONFIG_SUN3_82586) += sun3_82586.o
+obj-$(CONFIG_LASI_82596) += lasi_82596.o
+obj-$(CONFIG_SNI_82596) += sni_82596.o
+obj-$(CONFIG_MVME16x_NET) += 82596.o
+obj-$(CONFIG_BVME6000_NET) += 82596.o

drivers/net/ethernet/i825xx/ether1.h

@@ -0,0 +1,280 @@
+/*
+ *  linux/drivers/acorn/net/ether1.h
+ *
+ *  Copyright (C) 1996 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.
+ *
+ *  Network driver for Acorn Ether1 cards.
+ */
+
+#ifndef _LINUX_ether1_H
+#define _LINUX_ether1_H
+
+#ifdef __ETHER1_C
+/* use 0 for production, 1 for verification, >2 for debug */
+#ifndef NET_DEBUG
+#define NET_DEBUG 0
+#endif
+
+#define priv(dev)	((struct ether1_priv *)netdev_priv(dev))
+
+/* Page register */
+#define REG_PAGE	(priv(dev)->base + 0x0000)
+
+/* Control register */
+#define REG_CONTROL	(priv(dev)->base + 0x0004)
+#define CTRL_RST	0x01
+#define CTRL_LOOPBACK	0x02
+#define CTRL_CA		0x04
+#define CTRL_ACK	0x08
+
+#define ETHER1_RAM	(priv(dev)->base + 0x2000)
+
+/* HW address */
+#define IDPROM_ADDRESS	(priv(dev)->base + 0x0024)
+
+struct ether1_priv {
+	void __iomem *base;
+	unsigned int tx_link;
+	unsigned int tx_head;
+	volatile unsigned int tx_tail;
+	volatile unsigned int rx_head;
+	volatile unsigned int rx_tail;
+	unsigned char bus_type;
+	unsigned char resetting;
+	unsigned char initialising : 1;
+	unsigned char restart      : 1;
+};
+
+#define I82586_NULL (-1)
+
+typedef struct { /* tdr */
+	unsigned short tdr_status;
+	unsigned short tdr_command;
+	unsigned short tdr_link;
+	unsigned short tdr_result;
+#define TDR_TIME	(0x7ff)
+#define TDR_SHORT	(1 << 12)
+#define TDR_OPEN	(1 << 13)
+#define TDR_XCVRPROB	(1 << 14)
+#define TDR_LNKOK	(1 << 15)
+} tdr_t;
+
+typedef struct { /* transmit */
+	unsigned short tx_status;
+	unsigned short tx_command;
+	unsigned short tx_link;
+	unsigned short tx_tbdoffset;
+} tx_t;
+
+typedef struct { /* tbd */
+	unsigned short tbd_opts;
+#define TBD_CNT		(0x3fff)
+#define TBD_EOL		(1 << 15)
+	unsigned short tbd_link;
+	unsigned short tbd_bufl;
+	unsigned short tbd_bufh;
+} tbd_t;
+
+typedef struct { /* rfd */
+	unsigned short rfd_status;
+#define RFD_NOEOF	(1 << 6)
+#define RFD_FRAMESHORT	(1 << 7)
+#define RFD_DMAOVRN	(1 << 8)
+#define RFD_NORESOURCES	(1 << 9)
+#define RFD_ALIGNERROR	(1 << 10)
+#define RFD_CRCERROR	(1 << 11)
+#define RFD_OK		(1 << 13)
+#define RFD_FDCONSUMED	(1 << 14)
+#define RFD_COMPLETE	(1 << 15)
+	unsigned short rfd_command;
+#define RFD_CMDSUSPEND	(1 << 14)
+#define RFD_CMDEL	(1 << 15)
+	unsigned short rfd_link;
+	unsigned short rfd_rbdoffset;
+	unsigned char  rfd_dest[6];
+	unsigned char  rfd_src[6];
+	unsigned short rfd_len;
+} rfd_t;
+
+typedef struct { /* rbd */
+	unsigned short rbd_status;
+#define RBD_ACNT	(0x3fff)
+#define RBD_ACNTVALID	(1 << 14)
+#define RBD_EOF		(1 << 15)
+	unsigned short rbd_link;
+	unsigned short rbd_bufl;
+	unsigned short rbd_bufh;
+	unsigned short rbd_len;
+} rbd_t;
+
+typedef struct { /* nop */
+	unsigned short nop_status;
+	unsigned short nop_command;
+	unsigned short nop_link;
+} nop_t;
+
+typedef struct { /* set multicast */
+	unsigned short mc_status;
+	unsigned short mc_command;
+	unsigned short mc_link;
+	unsigned short mc_cnt;
+	unsigned char  mc_addrs[1][6];
+} mc_t;
+
+typedef struct { /* set address */
+	unsigned short sa_status;
+	unsigned short sa_command;
+	unsigned short sa_link;
+	unsigned char  sa_addr[6];
+} sa_t;
+
+typedef struct { /* config command */
+	unsigned short cfg_status;
+	unsigned short cfg_command;
+	unsigned short cfg_link;
+	unsigned char  cfg_bytecnt;	/* size foll data: 4 - 12		 */
+	unsigned char  cfg_fifolim;	/* FIFO threshold			 */
+	unsigned char  cfg_byte8;
+#define CFG8_SRDY	(1 << 6)
+#define CFG8_SAVEBADF	(1 << 7)
+	unsigned char  cfg_byte9;
+#define CFG9_ADDRLEN(x)	(x)
+#define CFG9_ADDRLENBUF	(1 << 3)
+#define CFG9_PREAMB2	(0 << 4)
+#define CFG9_PREAMB4	(1 << 4)
+#define CFG9_PREAMB8	(2 << 4)
+#define CFG9_PREAMB16	(3 << 4)
+#define CFG9_ILOOPBACK	(1 << 6)
+#define CFG9_ELOOPBACK	(1 << 7)
+	unsigned char  cfg_byte10;
+#define CFG10_LINPRI(x)	(x)
+#define CFG10_ACR(x)	(x << 4)
+#define CFG10_BOFMET	(1 << 7)
+	unsigned char  cfg_ifs;
+	unsigned char  cfg_slotl;
+	unsigned char  cfg_byte13;
+#define CFG13_SLOTH(x)	(x)
+#define CFG13_RETRY(x)	(x << 4)
+	unsigned char  cfg_byte14;
+#define CFG14_PROMISC	(1 << 0)
+#define CFG14_DISBRD	(1 << 1)
+#define CFG14_MANCH	(1 << 2)
+#define CFG14_TNCRS	(1 << 3)
+#define CFG14_NOCRC	(1 << 4)
+#define CFG14_CRC16	(1 << 5)
+#define CFG14_BTSTF	(1 << 6)
+#define CFG14_FLGPAD	(1 << 7)
+	unsigned char  cfg_byte15;
+#define CFG15_CSTF(x)	(x)
+#define CFG15_ICSS	(1 << 3)
+#define CFG15_CDTF(x)	(x << 4)
+#define CFG15_ICDS	(1 << 7)
+	unsigned short cfg_minfrmlen;
+} cfg_t;
+
+typedef struct { /* scb */
+	unsigned short scb_status;	/* status of 82586			*/
+#define SCB_STRXMASK		(7 << 4)	/* Receive unit status		*/
+#define SCB_STRXIDLE		(0 << 4)	/* Idle				*/
+#define SCB_STRXSUSP		(1 << 4)	/* Suspended			*/
+#define SCB_STRXNRES		(2 << 4)	/* No resources			*/
+#define SCB_STRXRDY		(4 << 4)	/* Ready			*/
+#define SCB_STCUMASK		(7 << 8)	/* Command unit status		*/
+#define SCB_STCUIDLE		(0 << 8)	/* Idle				*/
+#define SCB_STCUSUSP		(1 << 8)	/* Suspended			*/
+#define SCB_STCUACTV		(2 << 8)	/* Active			*/
+#define SCB_STRNR		(1 << 12)	/* Receive unit not ready	*/
+#define SCB_STCNA		(1 << 13)	/* Command unit not ready	*/
+#define SCB_STFR		(1 << 14)	/* Frame received		*/
+#define SCB_STCX		(1 << 15)	/* Command completed		*/
+	unsigned short scb_command;	/* Next command				*/
+#define SCB_CMDRXSTART		(1 << 4)	/* Start (at rfa_offset)	*/
+#define SCB_CMDRXRESUME		(2 << 4)	/* Resume reception		*/
+#define SCB_CMDRXSUSPEND	(3 << 4)	/* Suspend reception		*/
+#define SCB_CMDRXABORT		(4 << 4)	/* Abort reception		*/
+#define SCB_CMDCUCSTART		(1 << 8)	/* Start (at cbl_offset)	*/
+#define SCB_CMDCUCRESUME	(2 << 8)	/* Resume execution		*/
+#define SCB_CMDCUCSUSPEND	(3 << 8)	/* Suspend execution		*/
+#define SCB_CMDCUCABORT		(4 << 8)	/* Abort execution		*/
+#define SCB_CMDACKRNR		(1 << 12)	/* Ack RU not ready		*/
+#define SCB_CMDACKCNA		(1 << 13)	/* Ack CU not ready		*/
+#define SCB_CMDACKFR		(1 << 14)	/* Ack Frame received		*/
+#define SCB_CMDACKCX		(1 << 15)	/* Ack Command complete		*/
+	unsigned short scb_cbl_offset;	/* Offset of first command unit		*/
+	unsigned short scb_rfa_offset;	/* Offset of first receive frame area	*/
+	unsigned short scb_crc_errors;	/* Properly aligned frame with CRC error*/
+	unsigned short scb_aln_errors;	/* Misaligned frames			*/
+	unsigned short scb_rsc_errors;	/* Frames lost due to no space		*/
+	unsigned short scb_ovn_errors;	/* Frames lost due to slow bus		*/
+} scb_t;
+
+typedef struct { /* iscp */
+	unsigned short iscp_busy;	/* set by CPU before CA			*/
+	unsigned short iscp_offset;	/* offset of SCB			*/
+	unsigned short iscp_basel;	/* base of SCB				*/
+	unsigned short iscp_baseh;
+} iscp_t;
+
+    /* this address must be 0xfff6 */
+typedef struct { /* scp */
+	unsigned short scp_sysbus;	/* bus size */
+#define SCP_SY_16BBUS	0x00
+#define SCP_SY_8BBUS	0x01
+	unsigned short scp_junk[2];	/* junk */
+	unsigned short scp_iscpl;	/* lower 16 bits of iscp */
+	unsigned short scp_iscph;	/* upper 16 bits of iscp */
+} scp_t;
+
+/* commands */
+#define CMD_NOP			0
+#define CMD_SETADDRESS		1
+#define CMD_CONFIG		2
+#define CMD_SETMULTICAST	3
+#define CMD_TX			4
+#define CMD_TDR			5
+#define CMD_DUMP		6
+#define CMD_DIAGNOSE		7
+
+#define CMD_MASK		7
+
+#define CMD_INTR		(1 << 13)
+#define CMD_SUSP		(1 << 14)
+#define CMD_EOL			(1 << 15)
+
+#define STAT_COLLISIONS		(15)
+#define STAT_COLLEXCESSIVE	(1 << 5)
+#define STAT_COLLAFTERTX	(1 << 6)
+#define STAT_TXDEFERRED		(1 << 7)
+#define STAT_TXSLOWDMA		(1 << 8)
+#define STAT_TXLOSTCTS		(1 << 9)
+#define STAT_NOCARRIER		(1 << 10)
+#define STAT_FAIL		(1 << 11)
+#define STAT_ABORTED		(1 << 12)
+#define STAT_OK			(1 << 13)
+#define STAT_BUSY		(1 << 14)
+#define STAT_COMPLETE		(1 << 15)
+#endif
+#endif
+
+/*
+ * Ether1 card definitions:
+ *
+ * FAST accesses:
+ *	+0	Page register
+ * 			16 pages
+ *	+4	Control
+ *			'1' = reset
+ *			'2' = loopback
+ *			'4' = CA
+ *			'8' = int ack
+ *
+ * RAM at address + 0x2000
+ * Pod. Prod id = 3
+ * Words after ID block [base + 8 words]
+ *	+0 pcb issue (0x0c and 0xf3 invalid)
+ *	+1 - +6 eth hw address
+ */

drivers/net/ethernet/i825xx/lasi_82596.c

@@ -0,0 +1,238 @@
+/* lasi_82596.c -- driver for the intel 82596 ethernet controller, as
+   munged into HPPA boxen .
+
+   This driver is based upon 82596.c, original credits are below...
+   but there were too many hoops which HP wants jumped through to
+   keep this code in there in a sane manner.
+
+   3 primary sources of the mess --
+   1) hppa needs *lots* of cacheline flushing to keep this kind of
+   MMIO running.
+
+   2) The 82596 needs to see all of its pointers as their physical
+   address.  Thus virt_to_bus/bus_to_virt are *everywhere*.
+
+   3) The implementation HP is using seems to be significantly pickier
+   about when and how the command and RX units are started.  some
+   command ordering was changed.
+
+   Examination of the mach driver leads one to believe that there
+   might be a saner way to pull this off...  anyone who feels like a
+   full rewrite can be my guest.
+
+   Split 02/13/2000 Sam Creasey (sammy@oh.verio.com)
+
+   02/01/2000  Initial modifications for parisc by Helge Deller (deller@gmx.de)
+   03/02/2000  changes for better/correct(?) cache-flushing (deller)
+*/
+
+/* 82596.c: A generic 82596 ethernet driver for linux. */
+/*
+   Based on Apricot.c
+   Written 1994 by Mark Evans.
+   This driver is for the Apricot 82596 bus-master interface
+
+   Modularised 12/94 Mark Evans
+
+
+   Modified to support the 82596 ethernet chips on 680x0 VME boards.
+   by Richard Hirst <richard@sleepie.demon.co.uk>
+   Renamed to be 82596.c
+
+   980825:  Changed to receive directly in to sk_buffs which are
+   allocated at open() time.  Eliminates copy on incoming frames
+   (small ones are still copied).  Shared data now held in a
+   non-cached page, so we can run on 68060 in copyback mode.
+
+   TBD:
+   * look at deferring rx frames rather than discarding (as per tulip)
+   * handle tx ring full as per tulip
+   * performance test to tune rx_copybreak
+
+   Most of my modifications relate to the braindead big-endian
+   implementation by Intel.  When the i596 is operating in
+   'big-endian' mode, it thinks a 32 bit value of 0x12345678
+   should be stored as 0x56781234.  This is a real pain, when
+   you have linked lists which are shared by the 680x0 and the
+   i596.
+
+   Driver skeleton
+   Written 1993 by Donald Becker.
+   Copyright 1993 United States Government as represented by the Director,
+   National Security Agency. This software may only be used and distributed
+   according to the terms of the GNU General Public License as modified by SRC,
+   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
+
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ptrace.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/pdc.h>
+#include <asm/parisc-device.h>
+
+#define LASI_82596_DRIVER_VERSION "LASI 82596 driver - Revision: 1.30"
+
+#define PA_I82596_RESET		0	/* Offsets relative to LASI-LAN-Addr.*/
+#define PA_CPU_PORT_L_ACCESS	4
+#define PA_CHANNEL_ATTENTION	8
+
+#define OPT_SWAP_PORT	0x0001	/* Need to wordswp on the MPU port */
+
+#define DMA_ALLOC                        dma_alloc_noncoherent
+#define DMA_FREE                         dma_free_noncoherent
+#define DMA_WBACK(ndev, addr, len) \
+	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_TO_DEVICE); } while (0)
+
+#define DMA_INV(ndev, addr, len) \
+	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_FROM_DEVICE); } while (0)
+
+#define DMA_WBACK_INV(ndev, addr, len) \
+	do { dma_cache_sync((ndev)->dev.parent, (void *)addr, len, DMA_BIDIRECTIONAL); } while (0)
+
+#define SYSBUS      0x0000006c;
+
+/* big endian CPU, 82596 "big" endian mode */
+#define SWAP32(x)   (((u32)(x)<<16) | ((((u32)(x)))>>16))
+#define SWAP16(x)   (x)
+
+#include "lib82596.c"
+
+MODULE_AUTHOR("Richard Hirst");
+MODULE_DESCRIPTION("i82596 driver");
+MODULE_LICENSE("GPL");
+module_param(i596_debug, int, 0);
+MODULE_PARM_DESC(i596_debug, "lasi_82596 debug mask");
+
+static inline void ca(struct net_device *dev)
+{
+	gsc_writel(0, dev->base_addr + PA_CHANNEL_ATTENTION);
+}
+
+
+static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	u32 v = (u32) (c) | (u32) (x);
+	u16 a, b;
+
+	if (lp->options & OPT_SWAP_PORT) {
+		a = v >> 16;
+		b = v & 0xffff;
+	} else {
+		a = v & 0xffff;
+		b = v >> 16;
+	}
+
+	gsc_writel(a, dev->base_addr + PA_CPU_PORT_L_ACCESS);
+	udelay(1);
+	gsc_writel(b, dev->base_addr + PA_CPU_PORT_L_ACCESS);
+}
+
+#define LAN_PROM_ADDR	0xF0810000
+
+static int
+lan_init_chip(struct parisc_device *dev)
+{
+	struct	net_device *netdevice;
+	struct i596_private *lp;
+	int	retval;
+	int i;
+
+	if (!dev->irq) {
+		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
+			__FILE__, (unsigned long)dev->hpa.start);
+		return -ENODEV;
+	}
+
+	printk(KERN_INFO "Found i82596 at 0x%lx, IRQ %d\n",
+			(unsigned long)dev->hpa.start, dev->irq);
+
+	netdevice = alloc_etherdev(sizeof(struct i596_private));
+	if (!netdevice)
+		return -ENOMEM;
+	SET_NETDEV_DEV(netdevice, &dev->dev);
+	parisc_set_drvdata (dev, netdevice);
+
+	netdevice->base_addr = dev->hpa.start;
+	netdevice->irq = dev->irq;
+
+	if (pdc_lan_station_id(netdevice->dev_addr, netdevice->base_addr)) {
+		for (i = 0; i < 6; i++) {
+			netdevice->dev_addr[i] = gsc_readb(LAN_PROM_ADDR + i);
+		}
+		printk(KERN_INFO
+		       "%s: MAC of HP700 LAN read from EEPROM\n", __FILE__);
+	}
+
+	lp = netdev_priv(netdevice);
+	lp->options = dev->id.sversion == 0x72 ? OPT_SWAP_PORT : 0;
+
+	retval = i82596_probe(netdevice);
+	if (retval) {
+		free_netdev(netdevice);
+		return -ENODEV;
+	}
+	return retval;
+}
+
+static int lan_remove_chip(struct parisc_device *pdev)
+{
+	struct net_device *dev = parisc_get_drvdata(pdev);
+	struct i596_private *lp = netdev_priv(dev);
+
+	unregister_netdev (dev);
+	DMA_FREE(&pdev->dev, sizeof(struct i596_private),
+		 (void *)lp->dma, lp->dma_addr);
+	free_netdev (dev);
+	return 0;
+}
+
+static struct parisc_device_id lan_tbl[] = {
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008a },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00072 },
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(parisc, lan_tbl);
+
+static struct parisc_driver lan_driver = {
+	.name		= "lasi_82596",
+	.id_table	= lan_tbl,
+	.probe		= lan_init_chip,
+	.remove         = lan_remove_chip,
+};
+
+static int lasi_82596_init(void)
+{
+	printk(KERN_INFO LASI_82596_DRIVER_VERSION "\n");
+	return register_parisc_driver(&lan_driver);
+}
+
+module_init(lasi_82596_init);
+
+static void __exit lasi_82596_exit(void)
+{
+	unregister_parisc_driver(&lan_driver);
+}
+
+module_exit(lasi_82596_exit);

drivers/net/ethernet/i825xx/sni_82596.c

@@ -0,0 +1,186 @@
+/*
+ * sni_82596.c -- driver for intel 82596 ethernet controller, as
+ *  		  used in older SNI RM machines
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+
+#define SNI_82596_DRIVER_VERSION "SNI RM 82596 driver - Revision: 0.01"
+
+static const char sni_82596_string[] = "snirm_82596";
+
+#define DMA_ALLOC                      dma_alloc_coherent
+#define DMA_FREE                       dma_free_coherent
+#define DMA_WBACK(priv, addr, len)     do { } while (0)
+#define DMA_INV(priv, addr, len)       do { } while (0)
+#define DMA_WBACK_INV(priv, addr, len) do { } while (0)
+
+#define SYSBUS      0x00004400
+
+/* big endian CPU, 82596 little endian */
+#define SWAP32(x)   cpu_to_le32((u32)(x))
+#define SWAP16(x)   cpu_to_le16((u16)(x))
+
+#define OPT_MPU_16BIT    0x01
+
+#include "lib82596.c"
+
+MODULE_AUTHOR("Thomas Bogendoerfer");
+MODULE_DESCRIPTION("i82596 driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:snirm_82596");
+module_param(i596_debug, int, 0);
+MODULE_PARM_DESC(i596_debug, "82596 debug mask");
+
+static inline void ca(struct net_device *dev)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	writel(0, lp->ca);
+}
+
+
+static void mpu_port(struct net_device *dev, int c, dma_addr_t x)
+{
+	struct i596_private *lp = netdev_priv(dev);
+
+	u32 v = (u32) (c) | (u32) (x);
+
+	if (lp->options & OPT_MPU_16BIT) {
+		writew(v & 0xffff, lp->mpu_port);
+		wmb();  /* order writes to MPU port */
+		udelay(1);
+		writew(v >> 16, lp->mpu_port);
+	} else {
+		writel(v, lp->mpu_port);
+		wmb();  /* order writes to MPU port */
+		udelay(1);
+		writel(v, lp->mpu_port);
+	}
+}
+
+
+static int sni_82596_probe(struct platform_device *dev)
+{
+	struct	net_device *netdevice;
+	struct i596_private *lp;
+	struct  resource *res, *ca, *idprom, *options;
+	int	retval = -ENOMEM;
+	void __iomem *mpu_addr;
+	void __iomem *ca_addr;
+	u8 __iomem *eth_addr;
+
+	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	ca = platform_get_resource(dev, IORESOURCE_MEM, 1);
+	options = platform_get_resource(dev, 0, 0);
+	idprom = platform_get_resource(dev, IORESOURCE_MEM, 2);
+	if (!res || !ca || !options || !idprom)
+		return -ENODEV;
+	mpu_addr = ioremap_nocache(res->start, 4);
+	if (!mpu_addr)
+		return -ENOMEM;
+	ca_addr = ioremap_nocache(ca->start, 4);
+	if (!ca_addr)
+		goto probe_failed_free_mpu;
+
+	printk(KERN_INFO "Found i82596 at 0x%x\n", res->start);
+
+	netdevice = alloc_etherdev(sizeof(struct i596_private));
+	if (!netdevice)
+		goto probe_failed_free_ca;
+
+	SET_NETDEV_DEV(netdevice, &dev->dev);
+	platform_set_drvdata (dev, netdevice);
+
+	netdevice->base_addr = res->start;
+	netdevice->irq = platform_get_irq(dev, 0);
+
+	eth_addr = ioremap_nocache(idprom->start, 0x10);
+	if (!eth_addr)
+		goto probe_failed;
+
+	/* someone seems to like messed up stuff */
+	netdevice->dev_addr[0] = readb(eth_addr + 0x0b);
+	netdevice->dev_addr[1] = readb(eth_addr + 0x0a);
+	netdevice->dev_addr[2] = readb(eth_addr + 0x09);
+	netdevice->dev_addr[3] = readb(eth_addr + 0x08);
+	netdevice->dev_addr[4] = readb(eth_addr + 0x07);
+	netdevice->dev_addr[5] = readb(eth_addr + 0x06);
+	iounmap(eth_addr);
+
+	if (!netdevice->irq) {
+		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
+			__FILE__, netdevice->base_addr);
+		goto probe_failed;
+	}
+
+	lp = netdev_priv(netdevice);
+	lp->options = options->flags & IORESOURCE_BITS;
+	lp->ca = ca_addr;
+	lp->mpu_port = mpu_addr;
+
+	retval = i82596_probe(netdevice);
+	if (retval == 0)
+		return 0;
+
+probe_failed:
+	free_netdev(netdevice);
+probe_failed_free_ca:
+	iounmap(ca_addr);
+probe_failed_free_mpu:
+	iounmap(mpu_addr);
+	return retval;
+}
+
+static int sni_82596_driver_remove(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct i596_private *lp = netdev_priv(dev);
+
+	unregister_netdev(dev);
+	DMA_FREE(dev->dev.parent, sizeof(struct i596_private),
+		 lp->dma, lp->dma_addr);
+	iounmap(lp->ca);
+	iounmap(lp->mpu_port);
+	free_netdev (dev);
+	return 0;
+}
+
+static struct platform_driver sni_82596_driver = {
+	.probe	= sni_82596_probe,
+	.remove	= sni_82596_driver_remove,
+	.driver	= {
+		.name	= sni_82596_string,
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int sni_82596_init(void)
+{
+	printk(KERN_INFO SNI_82596_DRIVER_VERSION "\n");
+	return platform_driver_register(&sni_82596_driver);
+}
+
+
+static void __exit sni_82596_exit(void)
+{
+	platform_driver_unregister(&sni_82596_driver);
+}
+
+module_init(sni_82596_init);
+module_exit(sni_82596_exit);

drivers/net/ethernet/i825xx/sun3_82586.h

@@ -0,0 +1,318 @@
+/*
+ * Intel i82586 Ethernet definitions
+ *
+ * This is an extension to the Linux operating system, and is covered by the
+ * same Gnu Public License that covers that work.
+ *
+ * copyrights (c) 1994 by Michael Hipp (hippm@informatik.uni-tuebingen.de)
+ *
+ * I have done a look in the following sources:
+ *   crynwr-packet-driver by Russ Nelson
+ *   Garret A. Wollman's i82586-driver for BSD
+ */
+
+/*
+ * Cloned from ni52.h, copyright as above.
+ *
+ * Modified for Sun3 OBIO i82586 by Sam Creasey (sammy@sammy.net)
+ */
+
+
+/* defines for the obio chip (not vme) */
+#define IEOB_NORSET 0x80        /* don't reset the board */
+#define IEOB_ONAIR  0x40        /* put us on the air */
+#define IEOB_ATTEN  0x20        /* attention! */
+#define IEOB_IENAB  0x10        /* interrupt enable */
+#define IEOB_XXXXX  0x08        /* free bit */
+#define IEOB_XCVRL2 0x04        /* level 2 transceiver? */
+#define IEOB_BUSERR 0x02        /* bus error */
+#define IEOB_INT    0x01        /* interrupt */
+
+/* where the obio one lives */
+#define IE_OBIO 0xc0000
+#define IE_IRQ 3
+
+/*
+ * where to find the System Configuration Pointer (SCP)
+ */
+#define SCP_DEFAULT_ADDRESS 0xfffff4
+
+
+/*
+ * System Configuration Pointer Struct
+ */
+
+struct scp_struct
+{
+  unsigned short zero_dum0;	/* has to be zero */
+  unsigned char  sysbus;	/* 0=16Bit,1=8Bit */
+  unsigned char  zero_dum1;	/* has to be zero for 586 */
+  unsigned short zero_dum2;
+  unsigned short zero_dum3;
+  char          *iscp;		/* pointer to the iscp-block */
+};
+
+
+/*
+ * Intermediate System Configuration Pointer (ISCP)
+ */
+struct iscp_struct
+{
+  unsigned char  busy;          /* 586 clears after successful init */
+  unsigned char  zero_dummy;    /* has to be zero */
+  unsigned short scb_offset;    /* pointeroffset to the scb_base */
+  char          *scb_base;      /* base-address of all 16-bit offsets */
+};
+
+/*
+ * System Control Block (SCB)
+ */
+struct scb_struct
+{
+  unsigned char rus;
+  unsigned char cus;
+  unsigned char cmd_ruc;           /* command word: RU part */
+  unsigned char cmd_cuc;           /* command word: CU part & ACK */
+  unsigned short cbl_offset;    /* pointeroffset, command block list */
+  unsigned short rfa_offset;    /* pointeroffset, receive frame area */
+  unsigned short crc_errs;      /* CRC-Error counter */
+  unsigned short aln_errs;      /* allignmenterror counter */
+  unsigned short rsc_errs;      /* Resourceerror counter */
+  unsigned short ovrn_errs;     /* OVerrunerror counter */
+};
+
+/*
+ * possible command values for the command word
+ */
+#define RUC_MASK	0x0070	/* mask for RU commands */
+#define RUC_NOP		0x0000	/* NOP-command */
+#define RUC_START	0x0010	/* start RU */
+#define RUC_RESUME	0x0020	/* resume RU after suspend */
+#define RUC_SUSPEND	0x0030	/* suspend RU */
+#define RUC_ABORT	0x0040	/* abort receiver operation immediately */
+
+#define CUC_MASK        0x07  /* mask for CU command */
+#define CUC_NOP         0x00  /* NOP-command */
+#define CUC_START       0x01  /* start execution of 1. cmd on the CBL */
+#define CUC_RESUME      0x02  /* resume after suspend */
+#define CUC_SUSPEND     0x03  /* Suspend CU */
+#define CUC_ABORT       0x04  /* abort command operation immediately */
+
+#define ACK_MASK        0xf0  /* mask for ACK command */
+#define ACK_CX          0x80  /* acknowledges STAT_CX */
+#define ACK_FR          0x40  /* ack. STAT_FR */
+#define ACK_CNA         0x20  /* ack. STAT_CNA */
+#define ACK_RNR         0x10  /* ack. STAT_RNR */
+
+/*
+ * possible status values for the status word
+ */
+#define STAT_MASK       0xf0  /* mask for cause of interrupt */
+#define STAT_CX         0x80  /* CU finished cmd with its I bit set */
+#define STAT_FR         0x40  /* RU finished receiving a frame */
+#define STAT_CNA        0x20  /* CU left active state */
+#define STAT_RNR        0x10  /* RU left ready state */
+
+#define CU_STATUS       0x7   /* CU status, 0=idle */
+#define CU_SUSPEND      0x1   /* CU is suspended */
+#define CU_ACTIVE       0x2   /* CU is active */
+
+#define RU_STATUS	0x70	/* RU status, 0=idle */
+#define RU_SUSPEND	0x10	/* RU suspended */
+#define RU_NOSPACE	0x20	/* RU no resources */
+#define RU_READY	0x40	/* RU is ready */
+
+/*
+ * Receive Frame Descriptor (RFD)
+ */
+struct rfd_struct
+{
+  unsigned char  stat_low;	/* status word */
+  unsigned char  stat_high;	/* status word */
+  unsigned char  rfd_sf;	/* 82596 mode only */
+  unsigned char  last;		/* Bit15,Last Frame on List / Bit14,suspend */
+  unsigned short next;		/* linkoffset to next RFD */
+  unsigned short rbd_offset;	/* pointeroffset to RBD-buffer */
+  unsigned char  dest[6];	/* ethernet-address, destination */
+  unsigned char  source[6];	/* ethernet-address, source */
+  unsigned short length;	/* 802.3 frame-length */
+  unsigned short zero_dummy;	/* dummy */
+};
+
+#define RFD_LAST     0x80	/* last: last rfd in the list */
+#define RFD_SUSP     0x40	/* last: suspend RU after  */
+#define RFD_COMPL    0x80
+#define RFD_OK       0x20
+#define RFD_BUSY     0x40
+#define RFD_ERR_LEN  0x10     /* Length error (if enabled length-checking */
+#define RFD_ERR_CRC  0x08     /* CRC error */
+#define RFD_ERR_ALGN 0x04     /* Alignment error */
+#define RFD_ERR_RNR  0x02     /* status: receiver out of resources */
+#define RFD_ERR_OVR  0x01     /* DMA Overrun! */
+
+#define RFD_ERR_FTS  0x0080	/* Frame to short */
+#define RFD_ERR_NEOP 0x0040	/* No EOP flag (for bitstuffing only) */
+#define RFD_ERR_TRUN 0x0020	/* (82596 only/SF mode) indicates truncated frame */
+#define RFD_MATCHADD 0x0002     /* status: Destinationaddress !matches IA (only 82596) */
+#define RFD_COLLDET  0x0001	/* Detected collision during reception */
+
+/*
+ * Receive Buffer Descriptor (RBD)
+ */
+struct rbd_struct
+{
+  unsigned short status;	/* status word,number of used bytes in buff */
+  unsigned short next;		/* pointeroffset to next RBD */
+  char          *buffer;	/* receive buffer address pointer */
+  unsigned short size;		/* size of this buffer */
+  unsigned short zero_dummy;    /* dummy */
+};
+
+#define RBD_LAST	0x8000	/* last buffer */
+#define RBD_USED	0x4000	/* this buffer has data */
+#define RBD_MASK	0x3fff	/* size-mask for length */
+
+/*
+ * Statusvalues for Commands/RFD
+ */
+#define STAT_COMPL   0x8000	/* status: frame/command is complete */
+#define STAT_BUSY    0x4000	/* status: frame/command is busy */
+#define STAT_OK      0x2000	/* status: frame/command is ok */
+
+/*
+ * Action-Commands
+ */
+#define CMD_NOP		0x0000	/* NOP */
+#define CMD_IASETUP	0x0001	/* initial address setup command */
+#define CMD_CONFIGURE	0x0002	/* configure command */
+#define CMD_MCSETUP	0x0003	/* MC setup command */
+#define CMD_XMIT	0x0004	/* transmit command */
+#define CMD_TDR		0x0005	/* time domain reflectometer (TDR) command */
+#define CMD_DUMP	0x0006	/* dump command */
+#define CMD_DIAGNOSE	0x0007	/* diagnose command */
+
+/*
+ * Action command bits
+ */
+#define CMD_LAST	0x8000	/* indicates last command in the CBL */
+#define CMD_SUSPEND	0x4000	/* suspend CU after this CB */
+#define CMD_INT		0x2000	/* generate interrupt after execution */
+
+/*
+ * NOP - command
+ */
+struct nop_cmd_struct
+{
+  unsigned short cmd_status;	/* status of this command */
+  unsigned short cmd_cmd;       /* the command itself (+bits) */
+  unsigned short cmd_link;      /* offsetpointer to next command */
+};
+
+/*
+ * IA Setup command
+ */
+struct iasetup_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned char  iaddr[6];
+};
+
+/*
+ * Configure command
+ */
+struct configure_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned char  byte_cnt;   /* size of the config-cmd */
+  unsigned char  fifo;       /* fifo/recv monitor */
+  unsigned char  sav_bf;     /* save bad frames (bit7=1)*/
+  unsigned char  adr_len;    /* adr_len(0-2),al_loc(3),pream(4-5),loopbak(6-7)*/
+  unsigned char  priority;   /* lin_prio(0-2),exp_prio(4-6),bof_metd(7) */
+  unsigned char  ifs;        /* inter frame spacing */
+  unsigned char  time_low;   /* slot time low */
+  unsigned char  time_high;  /* slot time high(0-2) and max. retries(4-7) */
+  unsigned char  promisc;    /* promisc-mode(0) , et al (1-7) */
+  unsigned char  carr_coll;  /* carrier(0-3)/collision(4-7) stuff */
+  unsigned char  fram_len;   /* minimal frame len */
+  unsigned char  dummy;	     /* dummy */
+};
+
+/*
+ * Multicast Setup command
+ */
+struct mcsetup_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short mc_cnt;		/* number of bytes in the MC-List */
+  unsigned char  mc_list[0][6];  	/* pointer to 6 bytes entries */
+};
+
+/*
+ * DUMP command
+ */
+struct dump_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short dump_offset;    /* pointeroffset to DUMP space */
+};
+
+/*
+ * transmit command
+ */
+struct transmit_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short tbd_offset;	/* pointeroffset to TBD */
+  unsigned char  dest[6];       /* destination address of the frame */
+  unsigned short length;	/* user defined: 802.3 length / Ether type */
+};
+
+#define TCMD_ERRMASK     0x0fa0
+#define TCMD_MAXCOLLMASK 0x000f
+#define TCMD_MAXCOLL     0x0020
+#define TCMD_HEARTBEAT   0x0040
+#define TCMD_DEFERRED    0x0080
+#define TCMD_UNDERRUN    0x0100
+#define TCMD_LOSTCTS     0x0200
+#define TCMD_NOCARRIER   0x0400
+#define TCMD_LATECOLL    0x0800
+
+struct tdr_cmd_struct
+{
+  unsigned short cmd_status;
+  unsigned short cmd_cmd;
+  unsigned short cmd_link;
+  unsigned short status;
+};
+
+#define TDR_LNK_OK	0x8000	/* No link problem identified */
+#define TDR_XCVR_PRB	0x4000	/* indicates a transceiver problem */
+#define TDR_ET_OPN	0x2000	/* open, no correct termination */
+#define TDR_ET_SRT	0x1000	/* TDR detected a short circuit */
+#define TDR_TIMEMASK	0x07ff	/* mask for the time field */
+
+/*
+ * Transmit Buffer Descriptor (TBD)
+ */
+struct tbd_struct
+{
+  unsigned short size;		/* size + EOF-Flag(15) */
+  unsigned short next;          /* pointeroffset to next TBD */
+  char          *buffer;        /* pointer to buffer */
+};
+
+#define TBD_LAST 0x8000         /* EOF-Flag, indicates last buffer in list */
+
+
+
+