// SPDX-License-Identifier: GPL-2.0
|
/*
|
* macsonic.c
|
*
|
* (C) 2005 Finn Thain
|
*
|
* Converted to DMA API, converted to unified driver model, made it work as
|
* a module again, and from the mac68k project, introduced more 32-bit cards
|
* and dhd's support for 16-bit cards.
|
*
|
* (C) 1998 Alan Cox
|
*
|
* Debugging Andreas Ehliar, Michael Schmitz
|
*
|
* Based on code
|
* (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
|
*
|
* This driver is based on work from Andreas Busse, but most of
|
* the code is rewritten.
|
*
|
* (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
|
*
|
* A driver for the Mac onboard Sonic ethernet chip.
|
*
|
* 98/12/21 MSch: judged from tests on Q800, it's basically working,
|
* but eating up both receive and transmit resources
|
* and duplicating packets. Needs more testing.
|
*
|
* 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
|
*
|
* 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
|
* on centris.
|
*/
|
|
#include <linux/kernel.h>
|
#include <linux/module.h>
|
#include <linux/types.h>
|
#include <linux/fcntl.h>
|
#include <linux/gfp.h>
|
#include <linux/interrupt.h>
|
#include <linux/ioport.h>
|
#include <linux/in.h>
|
#include <linux/string.h>
|
#include <linux/delay.h>
|
#include <linux/nubus.h>
|
#include <linux/errno.h>
|
#include <linux/netdevice.h>
|
#include <linux/etherdevice.h>
|
#include <linux/skbuff.h>
|
#include <linux/platform_device.h>
|
#include <linux/dma-mapping.h>
|
#include <linux/bitrev.h>
|
#include <linux/slab.h>
|
#include <linux/pgtable.h>
|
|
#include <asm/io.h>
|
#include <asm/hwtest.h>
|
#include <asm/dma.h>
|
#include <asm/macintosh.h>
|
#include <asm/macints.h>
|
#include <asm/mac_via.h>
|
|
#include "sonic.h"
|
|
/* These should basically be bus-size and endian independent (since
|
the SONIC is at least smart enough that it uses the same endianness
|
as the host, unlike certain less enlightened Macintosh NICs) */
|
#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
|
+ lp->reg_offset))
|
#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
|
+ lp->reg_offset))
|
|
/* For onboard SONIC */
|
#define ONBOARD_SONIC_REGISTERS 0x50F0A000
|
#define ONBOARD_SONIC_PROM_BASE 0x50f08000
|
|
enum macsonic_type {
|
MACSONIC_DUODOCK,
|
MACSONIC_APPLE,
|
MACSONIC_APPLE16,
|
MACSONIC_DAYNA,
|
MACSONIC_DAYNALINK
|
};
|
|
/* For the built-in SONIC in the Duo Dock */
|
#define DUODOCK_SONIC_REGISTERS 0xe10000
|
#define DUODOCK_SONIC_PROM_BASE 0xe12000
|
|
/* For Apple-style NuBus SONIC */
|
#define APPLE_SONIC_REGISTERS 0
|
#define APPLE_SONIC_PROM_BASE 0x40000
|
|
/* Daynalink LC SONIC */
|
#define DAYNALINK_PROM_BASE 0x400000
|
|
/* For Dayna-style NuBus SONIC (haven't seen one yet) */
|
#define DAYNA_SONIC_REGISTERS 0x180000
|
/* This is what OpenBSD says. However, this is definitely in NuBus
|
ROM space so we should be able to get it by walking the NuBus
|
resource directories */
|
#define DAYNA_SONIC_MAC_ADDR 0xffe004
|
|
#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
|
|
/*
|
* For reversing the PROM address
|
*/
|
|
static inline void bit_reverse_addr(unsigned char addr[6])
|
{
|
int i;
|
|
for(i = 0; i < 6; i++)
|
addr[i] = bitrev8(addr[i]);
|
}
|
|
static int macsonic_open(struct net_device* dev)
|
{
|
int retval;
|
|
retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev);
|
if (retval) {
|
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
|
dev->name, dev->irq);
|
goto err;
|
}
|
/* Under the A/UX interrupt scheme, the onboard SONIC interrupt gets
|
* moved from level 2 to level 3. Unfortunately we still get some
|
* level 2 interrupts so register the handler for both.
|
*/
|
if (dev->irq == IRQ_AUTO_3) {
|
retval = request_irq(IRQ_NUBUS_9, sonic_interrupt, 0,
|
"sonic", dev);
|
if (retval) {
|
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
|
dev->name, IRQ_NUBUS_9);
|
goto err_irq;
|
}
|
}
|
retval = sonic_open(dev);
|
if (retval)
|
goto err_irq_nubus;
|
return 0;
|
|
err_irq_nubus:
|
if (dev->irq == IRQ_AUTO_3)
|
free_irq(IRQ_NUBUS_9, dev);
|
err_irq:
|
free_irq(dev->irq, dev);
|
err:
|
return retval;
|
}
|
|
static int macsonic_close(struct net_device* dev)
|
{
|
int err;
|
err = sonic_close(dev);
|
free_irq(dev->irq, dev);
|
if (dev->irq == IRQ_AUTO_3)
|
free_irq(IRQ_NUBUS_9, dev);
|
return err;
|
}
|
|
static const struct net_device_ops macsonic_netdev_ops = {
|
.ndo_open = macsonic_open,
|
.ndo_stop = macsonic_close,
|
.ndo_start_xmit = sonic_send_packet,
|
.ndo_set_rx_mode = sonic_multicast_list,
|
.ndo_tx_timeout = sonic_tx_timeout,
|
.ndo_get_stats = sonic_get_stats,
|
.ndo_validate_addr = eth_validate_addr,
|
.ndo_set_mac_address = eth_mac_addr,
|
};
|
|
static int macsonic_init(struct net_device *dev)
|
{
|
struct sonic_local* lp = netdev_priv(dev);
|
int err = sonic_alloc_descriptors(dev);
|
|
if (err)
|
return err;
|
|
dev->netdev_ops = &macsonic_netdev_ops;
|
dev->watchdog_timeo = TX_TIMEOUT;
|
|
/*
|
* clear tally counter
|
*/
|
SONIC_WRITE(SONIC_CRCT, 0xffff);
|
SONIC_WRITE(SONIC_FAET, 0xffff);
|
SONIC_WRITE(SONIC_MPT, 0xffff);
|
|
return 0;
|
}
|
|
#define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \
|
memcmp(mac, "\x00\xA0\x40", 3) && \
|
memcmp(mac, "\x00\x80\x19", 3) && \
|
memcmp(mac, "\x00\x05\x02", 3))
|
|
static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
|
{
|
struct sonic_local *lp = netdev_priv(dev);
|
const int prom_addr = ONBOARD_SONIC_PROM_BASE;
|
unsigned short val;
|
|
/*
|
* On NuBus boards we can sometimes look in the ROM resources.
|
* No such luck for comm-slot/onboard.
|
* On the PowerBook 520, the PROM base address is a mystery.
|
*/
|
if (hwreg_present((void *)prom_addr)) {
|
int i;
|
|
for (i = 0; i < 6; i++)
|
dev->dev_addr[i] = SONIC_READ_PROM(i);
|
if (!INVALID_MAC(dev->dev_addr))
|
return;
|
|
/*
|
* Most of the time, the address is bit-reversed. The NetBSD
|
* source has a rather long and detailed historical account of
|
* why this is so.
|
*/
|
bit_reverse_addr(dev->dev_addr);
|
if (!INVALID_MAC(dev->dev_addr))
|
return;
|
|
/*
|
* If we still have what seems to be a bogus address, we'll
|
* look in the CAM. The top entry should be ours.
|
*/
|
printk(KERN_WARNING "macsonic: MAC address in PROM seems "
|
"to be invalid, trying CAM\n");
|
} else {
|
printk(KERN_WARNING "macsonic: cannot read MAC address from "
|
"PROM, trying CAM\n");
|
}
|
|
/* This only works if MacOS has already initialized the card. */
|
|
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
|
SONIC_WRITE(SONIC_CEP, 15);
|
|
val = SONIC_READ(SONIC_CAP2);
|
dev->dev_addr[5] = val >> 8;
|
dev->dev_addr[4] = val & 0xff;
|
val = SONIC_READ(SONIC_CAP1);
|
dev->dev_addr[3] = val >> 8;
|
dev->dev_addr[2] = val & 0xff;
|
val = SONIC_READ(SONIC_CAP0);
|
dev->dev_addr[1] = val >> 8;
|
dev->dev_addr[0] = val & 0xff;
|
|
if (!INVALID_MAC(dev->dev_addr))
|
return;
|
|
/* Still nonsense ... messed up someplace! */
|
|
printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
|
"seems invalid, will use a random MAC\n");
|
eth_hw_addr_random(dev);
|
}
|
|
static int mac_onboard_sonic_probe(struct net_device *dev)
|
{
|
struct sonic_local* lp = netdev_priv(dev);
|
int sr;
|
bool commslot = macintosh_config->expansion_type == MAC_EXP_PDS_COMM;
|
|
/* Bogus probing, on the models which may or may not have
|
Ethernet (BTW, the Ethernet *is* always at the same
|
address, and nothing else lives there, at least if Apple's
|
documentation is to be believed) */
|
if (commslot || macintosh_config->ident == MAC_MODEL_C610) {
|
int card_present;
|
|
card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
|
if (!card_present) {
|
pr_info("Onboard/comm-slot SONIC not found\n");
|
return -ENODEV;
|
}
|
}
|
|
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
|
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
|
dev->base_addr = ONBOARD_SONIC_REGISTERS;
|
if (via_alt_mapping)
|
dev->irq = IRQ_AUTO_3;
|
else
|
dev->irq = IRQ_NUBUS_9;
|
|
/* The PowerBook's SONIC is 16 bit always. */
|
if (macintosh_config->ident == MAC_MODEL_PB520) {
|
lp->reg_offset = 0;
|
lp->dma_bitmode = SONIC_BITMODE16;
|
} else if (commslot) {
|
/* Some of the comm-slot cards are 16 bit. But some
|
of them are not. The 32-bit cards use offset 2 and
|
have known revisions, we try reading the revision
|
register at offset 2, if we don't get a known revision
|
we assume 16 bit at offset 0. */
|
lp->reg_offset = 2;
|
lp->dma_bitmode = SONIC_BITMODE16;
|
|
sr = SONIC_READ(SONIC_SR);
|
if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
|
/* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
|
lp->dma_bitmode = SONIC_BITMODE32;
|
else {
|
lp->dma_bitmode = SONIC_BITMODE16;
|
lp->reg_offset = 0;
|
}
|
} else {
|
/* All onboard cards are at offset 2 with 32 bit DMA. */
|
lp->reg_offset = 2;
|
lp->dma_bitmode = SONIC_BITMODE32;
|
}
|
|
pr_info("Onboard/comm-slot SONIC, revision 0x%04x, %d bit DMA, register offset %d\n",
|
SONIC_READ(SONIC_SR), lp->dma_bitmode ? 32 : 16,
|
lp->reg_offset);
|
|
/* This is sometimes useful to find out how MacOS configured the card */
|
pr_debug("%s: DCR=0x%04x, DCR2=0x%04x\n", __func__,
|
SONIC_READ(SONIC_DCR) & 0xffff,
|
SONIC_READ(SONIC_DCR2) & 0xffff);
|
|
/* Software reset, then initialize control registers. */
|
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
|
|
SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
|
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
|
(lp->dma_bitmode ? SONIC_DCR_DW : 0));
|
|
/* This *must* be written back to in order to restore the
|
* extended programmable output bits, as it may not have been
|
* initialised since the hardware reset. */
|
SONIC_WRITE(SONIC_DCR2, 0);
|
|
/* Clear *and* disable interrupts to be on the safe side */
|
SONIC_WRITE(SONIC_IMR, 0);
|
SONIC_WRITE(SONIC_ISR, 0x7fff);
|
|
/* Now look for the MAC address. */
|
mac_onboard_sonic_ethernet_addr(dev);
|
|
pr_info("SONIC ethernet @%08lx, MAC %pM, IRQ %d\n",
|
dev->base_addr, dev->dev_addr, dev->irq);
|
|
/* Shared init code */
|
return macsonic_init(dev);
|
}
|
|
static int mac_sonic_nubus_ethernet_addr(struct net_device *dev,
|
unsigned long prom_addr, int id)
|
{
|
int i;
|
for(i = 0; i < 6; i++)
|
dev->dev_addr[i] = SONIC_READ_PROM(i);
|
|
/* Some of the addresses are bit-reversed */
|
if (id != MACSONIC_DAYNA)
|
bit_reverse_addr(dev->dev_addr);
|
|
return 0;
|
}
|
|
static int macsonic_ident(struct nubus_rsrc *fres)
|
{
|
if (fres->dr_hw == NUBUS_DRHW_ASANTE_LC &&
|
fres->dr_sw == NUBUS_DRSW_SONIC_LC)
|
return MACSONIC_DAYNALINK;
|
if (fres->dr_hw == NUBUS_DRHW_SONIC &&
|
fres->dr_sw == NUBUS_DRSW_APPLE) {
|
/* There has to be a better way to do this... */
|
if (strstr(fres->board->name, "DuoDock"))
|
return MACSONIC_DUODOCK;
|
else
|
return MACSONIC_APPLE;
|
}
|
|
if (fres->dr_hw == NUBUS_DRHW_SMC9194 &&
|
fres->dr_sw == NUBUS_DRSW_DAYNA)
|
return MACSONIC_DAYNA;
|
|
if (fres->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
|
fres->dr_sw == 0) { /* huh? */
|
return MACSONIC_APPLE16;
|
}
|
return -1;
|
}
|
|
static int mac_sonic_nubus_probe_board(struct nubus_board *board, int id,
|
struct net_device *dev)
|
{
|
struct sonic_local* lp = netdev_priv(dev);
|
unsigned long base_addr, prom_addr;
|
u16 sonic_dcr;
|
int reg_offset, dma_bitmode;
|
|
switch (id) {
|
case MACSONIC_DUODOCK:
|
base_addr = board->slot_addr + DUODOCK_SONIC_REGISTERS;
|
prom_addr = board->slot_addr + DUODOCK_SONIC_PROM_BASE;
|
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
|
SONIC_DCR_TFT0;
|
reg_offset = 2;
|
dma_bitmode = SONIC_BITMODE32;
|
break;
|
case MACSONIC_APPLE:
|
base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
|
prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
|
sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
|
reg_offset = 0;
|
dma_bitmode = SONIC_BITMODE32;
|
break;
|
case MACSONIC_APPLE16:
|
base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
|
prom_addr = board->slot_addr + APPLE_SONIC_PROM_BASE;
|
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
|
SONIC_DCR_PO1 | SONIC_DCR_BMS;
|
reg_offset = 0;
|
dma_bitmode = SONIC_BITMODE16;
|
break;
|
case MACSONIC_DAYNALINK:
|
base_addr = board->slot_addr + APPLE_SONIC_REGISTERS;
|
prom_addr = board->slot_addr + DAYNALINK_PROM_BASE;
|
sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
|
SONIC_DCR_PO1 | SONIC_DCR_BMS;
|
reg_offset = 0;
|
dma_bitmode = SONIC_BITMODE16;
|
break;
|
case MACSONIC_DAYNA:
|
base_addr = board->slot_addr + DAYNA_SONIC_REGISTERS;
|
prom_addr = board->slot_addr + DAYNA_SONIC_MAC_ADDR;
|
sonic_dcr = SONIC_DCR_BMS |
|
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
|
reg_offset = 0;
|
dma_bitmode = SONIC_BITMODE16;
|
break;
|
default:
|
printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
|
return -ENODEV;
|
}
|
|
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
|
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
|
dev->base_addr = base_addr;
|
lp->reg_offset = reg_offset;
|
lp->dma_bitmode = dma_bitmode;
|
dev->irq = SLOT2IRQ(board->slot);
|
|
dev_info(&board->dev, "%s, revision 0x%04x, %d bit DMA, register offset %d\n",
|
board->name, SONIC_READ(SONIC_SR),
|
lp->dma_bitmode ? 32 : 16, lp->reg_offset);
|
|
/* This is sometimes useful to find out how MacOS configured the card */
|
dev_dbg(&board->dev, "%s: DCR=0x%04x, DCR2=0x%04x\n", __func__,
|
SONIC_READ(SONIC_DCR) & 0xffff,
|
SONIC_READ(SONIC_DCR2) & 0xffff);
|
|
/* Software reset, then initialize control registers. */
|
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
|
SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
|
/* This *must* be written back to in order to restore the
|
* extended programmable output bits, since it may not have been
|
* initialised since the hardware reset. */
|
SONIC_WRITE(SONIC_DCR2, 0);
|
|
/* Clear *and* disable interrupts to be on the safe side */
|
SONIC_WRITE(SONIC_IMR, 0);
|
SONIC_WRITE(SONIC_ISR, 0x7fff);
|
|
/* Now look for the MAC address. */
|
if (mac_sonic_nubus_ethernet_addr(dev, prom_addr, id) != 0)
|
return -ENODEV;
|
|
dev_info(&board->dev, "SONIC ethernet @%08lx, MAC %pM, IRQ %d\n",
|
dev->base_addr, dev->dev_addr, dev->irq);
|
|
/* Shared init code */
|
return macsonic_init(dev);
|
}
|
|
static int mac_sonic_platform_probe(struct platform_device *pdev)
|
{
|
struct net_device *dev;
|
struct sonic_local *lp;
|
int err;
|
|
dev = alloc_etherdev(sizeof(struct sonic_local));
|
if (!dev)
|
return -ENOMEM;
|
|
lp = netdev_priv(dev);
|
lp->device = &pdev->dev;
|
SET_NETDEV_DEV(dev, &pdev->dev);
|
platform_set_drvdata(pdev, dev);
|
|
err = mac_onboard_sonic_probe(dev);
|
if (err)
|
goto out;
|
|
sonic_msg_init(dev);
|
|
err = register_netdev(dev);
|
if (err)
|
goto undo_probe;
|
|
return 0;
|
|
undo_probe:
|
dma_free_coherent(lp->device,
|
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
|
lp->descriptors, lp->descriptors_laddr);
|
out:
|
free_netdev(dev);
|
|
return err;
|
}
|
|
MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
|
MODULE_ALIAS("platform:macsonic");
|
|
#include "sonic.c"
|
|
static int mac_sonic_platform_remove(struct platform_device *pdev)
|
{
|
struct net_device *dev = platform_get_drvdata(pdev);
|
struct sonic_local* lp = netdev_priv(dev);
|
|
unregister_netdev(dev);
|
dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
|
lp->descriptors, lp->descriptors_laddr);
|
free_netdev(dev);
|
|
return 0;
|
}
|
|
static struct platform_driver mac_sonic_platform_driver = {
|
.probe = mac_sonic_platform_probe,
|
.remove = mac_sonic_platform_remove,
|
.driver = {
|
.name = "macsonic",
|
},
|
};
|
|
static int mac_sonic_nubus_probe(struct nubus_board *board)
|
{
|
struct net_device *ndev;
|
struct sonic_local *lp;
|
struct nubus_rsrc *fres;
|
int id = -1;
|
int err;
|
|
/* The platform driver will handle a PDS or Comm Slot card (even if
|
* it has a pseudoslot declaration ROM).
|
*/
|
if (macintosh_config->expansion_type == MAC_EXP_PDS_COMM)
|
return -ENODEV;
|
|
for_each_board_func_rsrc(board, fres) {
|
if (fres->category != NUBUS_CAT_NETWORK ||
|
fres->type != NUBUS_TYPE_ETHERNET)
|
continue;
|
|
id = macsonic_ident(fres);
|
if (id != -1)
|
break;
|
}
|
if (!fres)
|
return -ENODEV;
|
|
ndev = alloc_etherdev(sizeof(struct sonic_local));
|
if (!ndev)
|
return -ENOMEM;
|
|
lp = netdev_priv(ndev);
|
lp->device = &board->dev;
|
SET_NETDEV_DEV(ndev, &board->dev);
|
|
err = mac_sonic_nubus_probe_board(board, id, ndev);
|
if (err)
|
goto out;
|
|
sonic_msg_init(ndev);
|
|
err = register_netdev(ndev);
|
if (err)
|
goto undo_probe;
|
|
nubus_set_drvdata(board, ndev);
|
|
return 0;
|
|
undo_probe:
|
dma_free_coherent(lp->device,
|
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
|
lp->descriptors, lp->descriptors_laddr);
|
out:
|
free_netdev(ndev);
|
return err;
|
}
|
|
static int mac_sonic_nubus_remove(struct nubus_board *board)
|
{
|
struct net_device *ndev = nubus_get_drvdata(board);
|
struct sonic_local *lp = netdev_priv(ndev);
|
|
unregister_netdev(ndev);
|
dma_free_coherent(lp->device,
|
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
|
lp->descriptors, lp->descriptors_laddr);
|
free_netdev(ndev);
|
|
return 0;
|
}
|
|
static struct nubus_driver mac_sonic_nubus_driver = {
|
.probe = mac_sonic_nubus_probe,
|
.remove = mac_sonic_nubus_remove,
|
.driver = {
|
.name = "macsonic-nubus",
|
.owner = THIS_MODULE,
|
},
|
};
|
|
static int perr, nerr;
|
|
static int __init mac_sonic_init(void)
|
{
|
perr = platform_driver_register(&mac_sonic_platform_driver);
|
nerr = nubus_driver_register(&mac_sonic_nubus_driver);
|
return 0;
|
}
|
module_init(mac_sonic_init);
|
|
static void __exit mac_sonic_exit(void)
|
{
|
if (!perr)
|
platform_driver_unregister(&mac_sonic_platform_driver);
|
if (!nerr)
|
nubus_driver_unregister(&mac_sonic_nubus_driver);
|
}
|
module_exit(mac_sonic_exit);
|
