Commit 0d9dc745 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

net: remove am79c961a driver 



This driver was only used on the EBSA110 platform, which is now
getting removed, so the driver is no longer needed either.

Acked-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
Acked-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 3e3f354b

drivers/net/ethernet/amd/Kconfig

+1 −9
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ config NET_VENDOR_AMD 
	default y

	depends on DIO || MACH_DECSTATION || MVME147 || ATARI || SUN3 || \

		   SUN3X || SBUS || PCI || ZORRO || (ISA && ISA_DMA_API) || \

		   (ARM && ARCH_EBSA110) || ISA || EISA || PCMCIA || ARM64

		   ISA || EISA || PCMCIA || ARM64

	help

	  If you have a network (Ethernet) chipset belonging to this class,

	  say Y.
@@ -75,14 +75,6 @@ config ARIADNE 
	  To compile this driver as a module, choose M here: the module

	  will be called ariadne.



config ARM_AM79C961A

	bool "ARM EBSA110 AM79C961A support"

	depends on ARM && ARCH_EBSA110

	select CRC32

	help

	  If you wish to compile a kernel for the EBSA-110, then you should

	  always answer Y to this.



config ATARILANCE

	tristate "Atari LANCE support"

	depends on ATARI

drivers/net/ethernet/amd/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -5,7 +5,6 @@ 


obj-$(CONFIG_A2065) += a2065.o

obj-$(CONFIG_AMD8111_ETH) += amd8111e.o

obj-$(CONFIG_ARM_AM79C961A) += am79c961a.o

obj-$(CONFIG_ARIADNE) += ariadne.o

obj-$(CONFIG_ATARILANCE) += atarilance.o

obj-$(CONFIG_DECLANCE) += declance.o

drivers/net/ethernet/amd/am79c961a.c

deleted100644 → 0
+0 −763
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 *  linux/drivers/net/ethernet/amd/am79c961a.c

 *

 *  by Russell King <rmk@arm.linux.org.uk> 1995-2001.

 *

 * Derived from various things including skeleton.c

 *

 * This is a special driver for the am79c961A Lance chip used in the

 * Intel (formally Digital Equipment Corp) EBSA110 platform.  Please

 * note that this can not be built as a module (it doesn't make sense).

 */

#include <linux/kernel.h>

#include <linux/types.h>

#include <linux/interrupt.h>

#include <linux/ioport.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/errno.h>

#include <linux/netdevice.h>

#include <linux/etherdevice.h>

#include <linux/delay.h>

#include <linux/init.h>

#include <linux/crc32.h>

#include <linux/bitops.h>

#include <linux/platform_device.h>

#include <linux/io.h>



#include <mach/hardware.h>



#define TX_BUFFERS 15

#define RX_BUFFERS 25



#include "am79c961a.h"



static irqreturn_t

am79c961_interrupt (int irq, void *dev_id);



static unsigned int net_debug = NET_DEBUG;



static const char version[] =

	"am79c961 ethernet driver (C) 1995-2001 Russell King v0.04\n";



/* --------------------------------------------------------------------------- */



#ifdef __arm__

static void write_rreg(u_long base, u_int reg, u_int val)

{

	asm volatile(

	"strh	%1, [%2]	@ NET_RAP\n\t"

	"strh	%0, [%2, #-4]	@ NET_RDP"

	:

	: "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));

}



static inline unsigned short read_rreg(u_long base_addr, u_int reg)

{

	unsigned short v;

	asm volatile(

	"strh	%1, [%2]	@ NET_RAP\n\t"

	"ldrh	%0, [%2, #-4]	@ NET_RDP"

	: "=r" (v)

	: "r" (reg), "r" (ISAIO_BASE + 0x0464));

	return v;

}



static inline void write_ireg(u_long base, u_int reg, u_int val)

{

	asm volatile(

	"strh	%1, [%2]	@ NET_RAP\n\t"

	"strh	%0, [%2, #8]	@ NET_IDP"

	:

	: "r" (val), "r" (reg), "r" (ISAIO_BASE + 0x0464));

}



static inline unsigned short read_ireg(u_long base_addr, u_int reg)

{

	u_short v;

	asm volatile(

	"strh	%1, [%2]	@ NAT_RAP\n\t"

	"ldrh	%0, [%2, #8]	@ NET_IDP\n\t"

	: "=r" (v)

	: "r" (reg), "r" (ISAIO_BASE + 0x0464));

	return v;

}



#define am_writeword(dev,off,val) __raw_writew(val, ISAMEM_BASE + ((off) << 1))

#define am_readword(dev,off)      __raw_readw(ISAMEM_BASE + ((off) << 1))



static void

am_writebuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned int length)

{

	offset = ISAMEM_BASE + (offset << 1);

	length = (length + 1) & ~1;

	if ((int)buf & 2) {

		asm volatile("strh	%2, [%0], #4"

		 : "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));

		buf += 2;

		length -= 2;

	}

	while (length > 8) {

		register unsigned int tmp asm("r2"), tmp2 asm("r3");

		asm volatile(

			"ldmia	%0!, {%1, %2}"

			: "+r" (buf), "=&r" (tmp), "=&r" (tmp2));

		length -= 8;

		asm volatile(

			"strh	%1, [%0], #4\n\t"

			"mov	%1, %1, lsr #16\n\t"

			"strh	%1, [%0], #4\n\t"

			"strh	%2, [%0], #4\n\t"

			"mov	%2, %2, lsr #16\n\t"

			"strh	%2, [%0], #4"

		: "+r" (offset), "=&r" (tmp), "=&r" (tmp2));

	}

	while (length > 0) {

		asm volatile("strh	%2, [%0], #4"

		 : "=&r" (offset) : "0" (offset), "r" (buf[0] | (buf[1] << 8)));

		buf += 2;

		length -= 2;

	}

}



static void

am_readbuffer(struct net_device *dev, u_int offset, unsigned char *buf, unsigned int length)

{

	offset = ISAMEM_BASE + (offset << 1);

	length = (length + 1) & ~1;

	if ((int)buf & 2) {

		unsigned int tmp;

		asm volatile(

			"ldrh	%2, [%0], #4\n\t"

			"strb	%2, [%1], #1\n\t"

			"mov	%2, %2, lsr #8\n\t"

			"strb	%2, [%1], #1"

		: "=&r" (offset), "=&r" (buf), "=r" (tmp): "0" (offset), "1" (buf));

		length -= 2;

	}

	while (length > 8) {

		register unsigned int tmp asm("r2"), tmp2 asm("r3"), tmp3;

		asm volatile(

			"ldrh	%2, [%0], #4\n\t"

			"ldrh	%4, [%0], #4\n\t"

			"ldrh	%3, [%0], #4\n\t"

			"orr	%2, %2, %4, lsl #16\n\t"

			"ldrh	%4, [%0], #4\n\t"

			"orr	%3, %3, %4, lsl #16\n\t"

			"stmia	%1!, {%2, %3}"

		: "=&r" (offset), "=&r" (buf), "=r" (tmp), "=r" (tmp2), "=r" (tmp3)

		: "0" (offset), "1" (buf));

		length -= 8;

	}

	while (length > 0) {

		unsigned int tmp;

		asm volatile(

			"ldrh	%2, [%0], #4\n\t"

			"strb	%2, [%1], #1\n\t"

			"mov	%2, %2, lsr #8\n\t"

			"strb	%2, [%1], #1"

		: "=&r" (offset), "=&r" (buf), "=r" (tmp) : "0" (offset), "1" (buf));

		length -= 2;

	}

}

#else

#error Not compatible

#endif



static int

am79c961_ramtest(struct net_device *dev, unsigned int val)

{

	unsigned char *buffer = kmalloc (65536, GFP_KERNEL);

	int i, error = 0, errorcount = 0;



	if (!buffer)

		return 0;

	memset (buffer, val, 65536);

	am_writebuffer(dev, 0, buffer, 65536);

	memset (buffer, val ^ 255, 65536);

	am_readbuffer(dev, 0, buffer, 65536);

	for (i = 0; i < 65536; i++) {

		if (buffer[i] != val && !error) {

			printk ("%s: buffer error (%02X %02X) %05X - ", dev->name, val, buffer[i], i);

			error = 1;

			errorcount ++;

		} else if (error && buffer[i] == val) {

			printk ("%05X\n", i);

			error = 0;

		}

	}

	if (error)

		printk ("10000\n");

	kfree (buffer);

	return errorcount;

}



static void am79c961_mc_hash(char *addr, u16 *hash)

{

	int idx, bit;

	u32 crc;



	crc = ether_crc_le(ETH_ALEN, addr);



	idx = crc >> 30;

	bit = (crc >> 26) & 15;



	hash[idx] |= 1 << bit;

}



static unsigned int am79c961_get_rx_mode(struct net_device *dev, u16 *hash)

{

	unsigned int mode = MODE_PORT_10BT;



	if (dev->flags & IFF_PROMISC) {

		mode |= MODE_PROMISC;

		memset(hash, 0xff, 4 * sizeof(*hash));

	} else if (dev->flags & IFF_ALLMULTI) {

		memset(hash, 0xff, 4 * sizeof(*hash));

	} else {

		struct netdev_hw_addr *ha;



		memset(hash, 0, 4 * sizeof(*hash));



		netdev_for_each_mc_addr(ha, dev)

			am79c961_mc_hash(ha->addr, hash);

	}



	return mode;

}



static void

am79c961_init_for_open(struct net_device *dev)

{

	struct dev_priv *priv = netdev_priv(dev);

	unsigned long flags;

	unsigned char *p;

	u_int hdr_addr, first_free_addr;

	u16 multi_hash[4], mode = am79c961_get_rx_mode(dev, multi_hash);

	int i;



	/*

	 * Stop the chip.

	 */

	spin_lock_irqsave(&priv->chip_lock, flags);

	write_rreg (dev->base_addr, CSR0, CSR0_BABL|CSR0_CERR|CSR0_MISS|CSR0_MERR|CSR0_TINT|CSR0_RINT|CSR0_STOP);

	spin_unlock_irqrestore(&priv->chip_lock, flags);



	write_ireg (dev->base_addr, 5, 0x00a0); /* Receive address LED */

	write_ireg (dev->base_addr, 6, 0x0081); /* Collision LED */

	write_ireg (dev->base_addr, 7, 0x0090); /* XMIT LED */

	write_ireg (dev->base_addr, 2, 0x0000); /* MODE register selects media */



	for (i = LADRL; i <= LADRH; i++)

		write_rreg (dev->base_addr, i, multi_hash[i - LADRL]);



	for (i = PADRL, p = dev->dev_addr; i <= PADRH; i++, p += 2)

		write_rreg (dev->base_addr, i, p[0] | (p[1] << 8));



	write_rreg (dev->base_addr, MODE, mode);

	write_rreg (dev->base_addr, POLLINT, 0);

	write_rreg (dev->base_addr, SIZERXR, -RX_BUFFERS);

	write_rreg (dev->base_addr, SIZETXR, -TX_BUFFERS);



	first_free_addr = RX_BUFFERS * 8 + TX_BUFFERS * 8 + 16;

	hdr_addr = 0;



	priv->rxhead = 0;

	priv->rxtail = 0;

	priv->rxhdr = hdr_addr;



	for (i = 0; i < RX_BUFFERS; i++) {

		priv->rxbuffer[i] = first_free_addr;

		am_writeword (dev, hdr_addr, first_free_addr);

		am_writeword (dev, hdr_addr + 2, RMD_OWN);

		am_writeword (dev, hdr_addr + 4, (-1600));

		am_writeword (dev, hdr_addr + 6, 0);

		first_free_addr += 1600;

		hdr_addr += 8;

	}

	priv->txhead = 0;

	priv->txtail = 0;

	priv->txhdr = hdr_addr;

	for (i = 0; i < TX_BUFFERS; i++) {

		priv->txbuffer[i] = first_free_addr;

		am_writeword (dev, hdr_addr, first_free_addr);

		am_writeword (dev, hdr_addr + 2, TMD_STP|TMD_ENP);

		am_writeword (dev, hdr_addr + 4, 0xf000);

		am_writeword (dev, hdr_addr + 6, 0);

		first_free_addr += 1600;

		hdr_addr += 8;

	}



	write_rreg (dev->base_addr, BASERXL, priv->rxhdr);

	write_rreg (dev->base_addr, BASERXH, 0);

	write_rreg (dev->base_addr, BASETXL, priv->txhdr);

	write_rreg (dev->base_addr, BASERXH, 0);

	write_rreg (dev->base_addr, CSR0, CSR0_STOP);

	write_rreg (dev->base_addr, CSR3, CSR3_IDONM|CSR3_BABLM|CSR3_DXSUFLO);

	write_rreg (dev->base_addr, CSR4, CSR4_APAD_XMIT|CSR4_MFCOM|CSR4_RCVCCOM|CSR4_TXSTRTM|CSR4_JABM);

	write_rreg (dev->base_addr, CSR0, CSR0_IENA|CSR0_STRT);

}



static void am79c961_timer(struct timer_list *t)

{

	struct dev_priv *priv = from_timer(priv, t, timer);

	struct net_device *dev = priv->dev;

	unsigned int lnkstat, carrier;

	unsigned long flags;



	spin_lock_irqsave(&priv->chip_lock, flags);

	lnkstat = read_ireg(dev->base_addr, ISALED0) & ISALED0_LNKST;

	spin_unlock_irqrestore(&priv->chip_lock, flags);

	carrier = netif_carrier_ok(dev);



	if (lnkstat && !carrier) {

		netif_carrier_on(dev);

		printk("%s: link up\n", dev->name);

	} else if (!lnkstat && carrier) {

		netif_carrier_off(dev);

		printk("%s: link down\n", dev->name);

	}



	mod_timer(&priv->timer, jiffies + msecs_to_jiffies(500));

}



/*

 * Open/initialize the board.

 */

static int

am79c961_open(struct net_device *dev)

{

	struct dev_priv *priv = netdev_priv(dev);

	int ret;



	ret = request_irq(dev->irq, am79c961_interrupt, 0, dev->name, dev);

	if (ret)

		return ret;



	am79c961_init_for_open(dev);



	netif_carrier_off(dev);



	priv->timer.expires = jiffies;

	add_timer(&priv->timer);



	netif_start_queue(dev);



	return 0;

}



/*

 * The inverse routine to am79c961_open().

 */

static int

am79c961_close(struct net_device *dev)

{

	struct dev_priv *priv = netdev_priv(dev);

	unsigned long flags;



	del_timer_sync(&priv->timer);



	netif_stop_queue(dev);

	netif_carrier_off(dev);



	spin_lock_irqsave(&priv->chip_lock, flags);

	write_rreg (dev->base_addr, CSR0, CSR0_STOP);

	write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);

	spin_unlock_irqrestore(&priv->chip_lock, flags);



	free_irq (dev->irq, dev);



	return 0;

}



/*

 * Set or clear promiscuous/multicast mode filter for this adapter.

 */

static void am79c961_setmulticastlist (struct net_device *dev)

{

	struct dev_priv *priv = netdev_priv(dev);

	unsigned long flags;

	u16 multi_hash[4], mode = am79c961_get_rx_mode(dev, multi_hash);

	int i, stopped;



	spin_lock_irqsave(&priv->chip_lock, flags);



	stopped = read_rreg(dev->base_addr, CSR0) & CSR0_STOP;



	if (!stopped) {

		/*

		 * Put the chip into suspend mode

		 */

		write_rreg(dev->base_addr, CTRL1, CTRL1_SPND);



		/*

		 * Spin waiting for chip to report suspend mode

		 */

		while ((read_rreg(dev->base_addr, CTRL1) & CTRL1_SPND) == 0) {

			spin_unlock_irqrestore(&priv->chip_lock, flags);

			nop();

			spin_lock_irqsave(&priv->chip_lock, flags);

		}

	}



	/*

	 * Update the multicast hash table

	 */

	for (i = 0; i < ARRAY_SIZE(multi_hash); i++)

		write_rreg(dev->base_addr, i + LADRL, multi_hash[i]);



	/*

	 * Write the mode register

	 */

	write_rreg(dev->base_addr, MODE, mode);



	if (!stopped) {

		/*

		 * Put the chip back into running mode

		 */

		write_rreg(dev->base_addr, CTRL1, 0);

	}



	spin_unlock_irqrestore(&priv->chip_lock, flags);

}



static void am79c961_timeout(struct net_device *dev, unsigned int txqueue)

{

	printk(KERN_WARNING "%s: transmit timed out, network cable problem?\n",

		dev->name);



	/*

	 * ought to do some setup of the tx side here

	 */



	netif_wake_queue(dev);

}



/*

 * Transmit a packet

 */

static netdev_tx_t

am79c961_sendpacket(struct sk_buff *skb, struct net_device *dev)

{

	struct dev_priv *priv = netdev_priv(dev);

	unsigned int hdraddr, bufaddr;

	unsigned int head;

	unsigned long flags;



	head = priv->txhead;

	hdraddr = priv->txhdr + (head << 3);

	bufaddr = priv->txbuffer[head];

	head += 1;

	if (head >= TX_BUFFERS)

		head = 0;



	am_writebuffer (dev, bufaddr, skb->data, skb->len);

	am_writeword (dev, hdraddr + 4, -skb->len);

	am_writeword (dev, hdraddr + 2, TMD_OWN|TMD_STP|TMD_ENP);

	priv->txhead = head;



	spin_lock_irqsave(&priv->chip_lock, flags);

	write_rreg (dev->base_addr, CSR0, CSR0_TDMD|CSR0_IENA);

	spin_unlock_irqrestore(&priv->chip_lock, flags);



	/*

	 * If the next packet is owned by the ethernet device,

	 * then the tx ring is full and we can't add another

	 * packet.

	 */

	if (am_readword(dev, priv->txhdr + (priv->txhead << 3) + 2) & TMD_OWN)

		netif_stop_queue(dev);



	dev_consume_skb_any(skb);



	return NETDEV_TX_OK;

}



/*

 * If we have a good packet(s), get it/them out of the buffers.

 */

static void

am79c961_rx(struct net_device *dev, struct dev_priv *priv)

{

	do {

		struct sk_buff *skb;

		u_int hdraddr;

		u_int pktaddr;

		u_int status;

		int len;



		hdraddr = priv->rxhdr + (priv->rxtail << 3);

		pktaddr = priv->rxbuffer[priv->rxtail];



		status = am_readword (dev, hdraddr + 2);

		if (status & RMD_OWN) /* do we own it? */

			break;



		priv->rxtail ++;

		if (priv->rxtail >= RX_BUFFERS)

			priv->rxtail = 0;



		if ((status & (RMD_ERR|RMD_STP|RMD_ENP)) != (RMD_STP|RMD_ENP)) {

			am_writeword (dev, hdraddr + 2, RMD_OWN);

			dev->stats.rx_errors++;

			if (status & RMD_ERR) {

				if (status & RMD_FRAM)

					dev->stats.rx_frame_errors++;

				if (status & RMD_CRC)

					dev->stats.rx_crc_errors++;

			} else if (status & RMD_STP)

				dev->stats.rx_length_errors++;

			continue;

		}



		len = am_readword(dev, hdraddr + 6);

		skb = netdev_alloc_skb(dev, len + 2);



		if (skb) {

			skb_reserve(skb, 2);



			am_readbuffer(dev, pktaddr, skb_put(skb, len), len);

			am_writeword(dev, hdraddr + 2, RMD_OWN);

			skb->protocol = eth_type_trans(skb, dev);

			netif_rx(skb);

			dev->stats.rx_bytes += len;

			dev->stats.rx_packets++;

		} else {

			am_writeword (dev, hdraddr + 2, RMD_OWN);

			dev->stats.rx_dropped++;

			break;

		}

	} while (1);

}



/*

 * Update stats for the transmitted packet

 */

static void

am79c961_tx(struct net_device *dev, struct dev_priv *priv)

{

	do {

		short len;

		u_int hdraddr;

		u_int status;



		hdraddr = priv->txhdr + (priv->txtail << 3);

		status = am_readword (dev, hdraddr + 2);

		if (status & TMD_OWN)

			break;



		priv->txtail ++;

		if (priv->txtail >= TX_BUFFERS)

			priv->txtail = 0;



		if (status & TMD_ERR) {

			u_int status2;



			dev->stats.tx_errors++;



			status2 = am_readword (dev, hdraddr + 6);



			/*

			 * Clear the error byte

			 */

			am_writeword (dev, hdraddr + 6, 0);



			if (status2 & TST_RTRY)

				dev->stats.collisions += 16;

			if (status2 & TST_LCOL)

				dev->stats.tx_window_errors++;

			if (status2 & TST_LCAR)

				dev->stats.tx_carrier_errors++;

			if (status2 & TST_UFLO)

				dev->stats.tx_fifo_errors++;

			continue;

		}

		dev->stats.tx_packets++;

		len = am_readword (dev, hdraddr + 4);

		dev->stats.tx_bytes += -len;

	} while (priv->txtail != priv->txhead);



	netif_wake_queue(dev);

}



static irqreturn_t

am79c961_interrupt(int irq, void *dev_id)

{

	struct net_device *dev = (struct net_device *)dev_id;

	struct dev_priv *priv = netdev_priv(dev);

	u_int status, n = 100;

	int handled = 0;



	do {

		status = read_rreg(dev->base_addr, CSR0);

		write_rreg(dev->base_addr, CSR0, status &

			   (CSR0_IENA|CSR0_TINT|CSR0_RINT|

			    CSR0_MERR|CSR0_MISS|CSR0_CERR|CSR0_BABL));



		if (status & CSR0_RINT) {

			handled = 1;

			am79c961_rx(dev, priv);

		}

		if (status & CSR0_TINT) {

			handled = 1;

			am79c961_tx(dev, priv);

		}

		if (status & CSR0_MISS) {

			handled = 1;

			dev->stats.rx_dropped++;

		}

		if (status & CSR0_CERR) {

			handled = 1;

			mod_timer(&priv->timer, jiffies);

		}

	} while (--n && status & (CSR0_RINT | CSR0_TINT));



	return IRQ_RETVAL(handled);

}



#ifdef CONFIG_NET_POLL_CONTROLLER

static void am79c961_poll_controller(struct net_device *dev)

{

	unsigned long flags;

	local_irq_save(flags);

	am79c961_interrupt(dev->irq, dev);

	local_irq_restore(flags);

}

#endif



/*

 * Initialise the chip.  Note that we always expect

 * to be entered with interrupts enabled.

 */

static int

am79c961_hw_init(struct net_device *dev)

{

	struct dev_priv *priv = netdev_priv(dev);



	spin_lock_irq(&priv->chip_lock);

	write_rreg (dev->base_addr, CSR0, CSR0_STOP);

	write_rreg (dev->base_addr, CSR3, CSR3_MASKALL);

	spin_unlock_irq(&priv->chip_lock);



	am79c961_ramtest(dev, 0x66);

	am79c961_ramtest(dev, 0x99);



	return 0;

}



static void __init am79c961_banner(void)

{

	static unsigned version_printed;



	if (net_debug && version_printed++ == 0)

		printk(KERN_INFO "%s", version);

}

static const struct net_device_ops am79c961_netdev_ops = {

	.ndo_open		= am79c961_open,

	.ndo_stop		= am79c961_close,

	.ndo_start_xmit		= am79c961_sendpacket,

	.ndo_set_rx_mode	= am79c961_setmulticastlist,

	.ndo_tx_timeout		= am79c961_timeout,

	.ndo_validate_addr	= eth_validate_addr,

	.ndo_set_mac_address	= eth_mac_addr,

#ifdef CONFIG_NET_POLL_CONTROLLER

	.ndo_poll_controller	= am79c961_poll_controller,

#endif

};



static int am79c961_probe(struct platform_device *pdev)

{

	struct resource *res;

	struct net_device *dev;

	struct dev_priv *priv;

	int i, ret;



	res = platform_get_resource(pdev, IORESOURCE_IO, 0);

	if (!res)

		return -ENODEV;



	dev = alloc_etherdev(sizeof(struct dev_priv));

	ret = -ENOMEM;

	if (!dev)

		goto out;



	SET_NETDEV_DEV(dev, &pdev->dev);



	priv = netdev_priv(dev);



	/*

	 * Fixed address and IRQ lines here.

	 * The PNP initialisation should have been

	 * done by the ether bootp loader.

	 */

	dev->base_addr = res->start;

	ret = platform_get_irq(pdev, 0);



	if (ret < 0) {

		ret = -ENODEV;

		goto nodev;

	}

	dev->irq = ret;



	ret = -ENODEV;

	if (!request_region(dev->base_addr, 0x18, dev->name))

		goto nodev;



	/*

	 * Reset the device.

	 */

	inb(dev->base_addr + NET_RESET);

	udelay(5);



	/*

	 * Check the manufacturer part of the

	 * ether address.

	 */

	if (inb(dev->base_addr) != 0x08 ||

	    inb(dev->base_addr + 2) != 0x00 ||

	    inb(dev->base_addr + 4) != 0x2b)

	    	goto release;



	for (i = 0; i < 6; i++)

		dev->dev_addr[i] = inb(dev->base_addr + i * 2) & 0xff;



	am79c961_banner();



	spin_lock_init(&priv->chip_lock);

	priv->dev = dev;

	timer_setup(&priv->timer, am79c961_timer, 0);



	if (am79c961_hw_init(dev))

		goto release;



	dev->netdev_ops = &am79c961_netdev_ops;



	ret = register_netdev(dev);

	if (ret == 0) {

		printk(KERN_INFO "%s: ether address %pM\n",

		       dev->name, dev->dev_addr);

		return 0;

	}



release:

	release_region(dev->base_addr, 0x18);

nodev:

	free_netdev(dev);

out:

	return ret;

}



static struct platform_driver am79c961_driver = {

	.probe		= am79c961_probe,

	.driver		= {

		.name	= "am79c961",

	},

};



static int __init am79c961_init(void)

{

	return platform_driver_register(&am79c961_driver);

}



__initcall(am79c961_init);

drivers/net/ethernet/amd/am79c961a.h

deleted100644 → 0
+0 −143
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * linux/drivers/net/ethernet/amd/am79c961a.h

 */



#ifndef _LINUX_am79c961a_H

#define _LINUX_am79c961a_H



/* use 0 for production, 1 for verification, >2 for debug. debug flags: */

#define DEBUG_TX	 2

#define DEBUG_RX	 4

#define DEBUG_INT	 8

#define DEBUG_IC	16

#ifndef NET_DEBUG

#define NET_DEBUG 	0

#endif



#define NET_UID		0

#define NET_RDP		0x10

#define NET_RAP		0x12

#define NET_RESET	0x14

#define NET_IDP		0x16



/*

 * RAP registers

 */

#define CSR0		0

#define CSR0_INIT	0x0001

#define CSR0_STRT	0x0002

#define CSR0_STOP	0x0004

#define CSR0_TDMD	0x0008

#define CSR0_TXON	0x0010

#define CSR0_RXON	0x0020

#define CSR0_IENA	0x0040

#define CSR0_INTR	0x0080

#define CSR0_IDON	0x0100

#define CSR0_TINT	0x0200

#define CSR0_RINT	0x0400

#define CSR0_MERR	0x0800

#define CSR0_MISS	0x1000

#define CSR0_CERR	0x2000

#define CSR0_BABL	0x4000

#define CSR0_ERR	0x8000



#define CSR3		3

#define CSR3_EMBA	0x0008

#define CSR3_DXMT2PD	0x0010

#define CSR3_LAPPEN	0x0020

#define CSR3_DXSUFLO	0x0040

#define CSR3_IDONM	0x0100

#define CSR3_TINTM	0x0200

#define CSR3_RINTM	0x0400

#define CSR3_MERRM	0x0800

#define CSR3_MISSM	0x1000

#define CSR3_BABLM	0x4000

#define CSR3_MASKALL	0x5F00



#define CSR4		4

#define CSR4_JABM	0x0001

#define CSR4_JAB	0x0002

#define CSR4_TXSTRTM	0x0004

#define CSR4_TXSTRT	0x0008

#define CSR4_RCVCCOM	0x0010

#define CSR4_RCVCCO	0x0020

#define CSR4_MFCOM	0x0100

#define CSR4_MFCO	0x0200

#define CSR4_ASTRP_RCV	0x0400

#define CSR4_APAD_XMIT	0x0800



#define CTRL1		5

#define CTRL1_SPND	0x0001



#define LADRL		8

#define LADRM1		9

#define LADRM2		10

#define LADRH		11

#define PADRL		12

#define PADRM		13

#define PADRH		14



#define MODE		15

#define MODE_DISRX	0x0001

#define MODE_DISTX	0x0002

#define MODE_LOOP	0x0004

#define MODE_DTCRC	0x0008

#define MODE_COLL	0x0010

#define MODE_DRETRY	0x0020

#define MODE_INTLOOP	0x0040

#define MODE_PORT_AUI	0x0000

#define MODE_PORT_10BT	0x0080

#define MODE_DRXPA	0x2000

#define MODE_DRXBA	0x4000

#define MODE_PROMISC	0x8000



#define BASERXL		24

#define BASERXH		25

#define BASETXL		30

#define BASETXH		31



#define POLLINT		47



#define SIZERXR		76

#define SIZETXR		78



#define CSR_MFC		112



#define RMD_ENP		0x0100

#define RMD_STP		0x0200

#define RMD_CRC		0x0800

#define RMD_FRAM	0x2000

#define RMD_ERR		0x4000

#define RMD_OWN		0x8000



#define TMD_ENP		0x0100

#define TMD_STP		0x0200

#define TMD_MORE	0x1000

#define TMD_ERR		0x4000

#define TMD_OWN		0x8000



#define TST_RTRY	0x0400

#define TST_LCAR	0x0800

#define TST_LCOL	0x1000

#define TST_UFLO	0x4000

#define TST_BUFF	0x8000



#define ISALED0		0x0004

#define ISALED0_LNKST	0x8000



struct dev_priv {

    unsigned long	rxbuffer[RX_BUFFERS];

    unsigned long	txbuffer[TX_BUFFERS];

    unsigned char	txhead;

    unsigned char	txtail;

    unsigned char	rxhead;

    unsigned char	rxtail;

    unsigned long	rxhdr;

    unsigned long	txhdr;

    spinlock_t		chip_lock;

    struct timer_list	timer;

    struct net_device   *dev;

};



#endif