blob: b267161418ea3680e6bb522ba5d8afd5fbcbedc0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * macsonic.c
3 *
Finn Thainefcce832005-08-20 15:53:22 +10004 * (C) 2005 Finn Thain
5 *
6 * Converted to DMA API, converted to unified driver model, made it work as
7 * a module again, and from the mac68k project, introduced more 32-bit cards
8 * and dhd's support for 16-bit cards.
9 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 * (C) 1998 Alan Cox
11 *
12 * Debugging Andreas Ehliar, Michael Schmitz
13 *
14 * Based on code
15 * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de)
Jeff Garzik6aa20a22006-09-13 13:24:59 -040016 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 * This driver is based on work from Andreas Busse, but most of
18 * the code is rewritten.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040019 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
21 *
22 * A driver for the Mac onboard Sonic ethernet chip.
23 *
Jeff Garzik6aa20a22006-09-13 13:24:59 -040024 * 98/12/21 MSch: judged from tests on Q800, it's basically working,
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 * but eating up both receive and transmit resources
26 * and duplicating packets. Needs more testing.
27 *
28 * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040029 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems
31 * on centris.
32 */
33
34#include <linux/kernel.h>
Finn Thainefcce832005-08-20 15:53:22 +100035#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036#include <linux/types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include <linux/fcntl.h>
38#include <linux/interrupt.h>
39#include <linux/init.h>
40#include <linux/ioport.h>
41#include <linux/in.h>
42#include <linux/slab.h>
43#include <linux/string.h>
44#include <linux/delay.h>
45#include <linux/nubus.h>
46#include <linux/errno.h>
47#include <linux/netdevice.h>
48#include <linux/etherdevice.h>
49#include <linux/skbuff.h>
Russell Kingd052d1b2005-10-29 19:07:23 +010050#include <linux/platform_device.h>
Finn Thainefcce832005-08-20 15:53:22 +100051#include <linux/dma-mapping.h>
Al Viro427a57a2007-02-09 16:05:22 +000052#include <linux/bitrev.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
54#include <asm/bootinfo.h>
55#include <asm/system.h>
56#include <asm/pgtable.h>
57#include <asm/io.h>
58#include <asm/hwtest.h>
59#include <asm/dma.h>
60#include <asm/macintosh.h>
61#include <asm/macints.h>
62#include <asm/mac_via.h>
63
Finn Thainefcce832005-08-20 15:53:22 +100064static char mac_sonic_string[] = "macsonic";
65static struct platform_device *mac_sonic_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -070066
67#include "sonic.h"
68
Finn Thainefcce832005-08-20 15:53:22 +100069/* These should basically be bus-size and endian independent (since
70 the SONIC is at least smart enough that it uses the same endianness
71 as the host, unlike certain less enlightened Macintosh NICs) */
72#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
73 + lp->reg_offset))
74#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
75 + lp->reg_offset))
Linus Torvalds1da177e2005-04-16 15:20:36 -070076
Finn Thainefcce832005-08-20 15:53:22 +100077/* use 0 for production, 1 for verification, >1 for debug */
78#ifdef SONIC_DEBUG
79static unsigned int sonic_debug = SONIC_DEBUG;
Jeff Garzik6aa20a22006-09-13 13:24:59 -040080#else
Finn Thainefcce832005-08-20 15:53:22 +100081static unsigned int sonic_debug = 1;
82#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
Linus Torvalds1da177e2005-04-16 15:20:36 -070084static int sonic_version_printed;
85
Linus Torvalds1da177e2005-04-16 15:20:36 -070086extern int mac_onboard_sonic_probe(struct net_device* dev);
87extern int mac_nubus_sonic_probe(struct net_device* dev);
88
89/* For onboard SONIC */
90#define ONBOARD_SONIC_REGISTERS 0x50F0A000
91#define ONBOARD_SONIC_PROM_BASE 0x50f08000
92
93enum macsonic_type {
94 MACSONIC_DUODOCK,
95 MACSONIC_APPLE,
96 MACSONIC_APPLE16,
97 MACSONIC_DAYNA,
98 MACSONIC_DAYNALINK
99};
100
101/* For the built-in SONIC in the Duo Dock */
102#define DUODOCK_SONIC_REGISTERS 0xe10000
103#define DUODOCK_SONIC_PROM_BASE 0xe12000
104
105/* For Apple-style NuBus SONIC */
106#define APPLE_SONIC_REGISTERS 0
107#define APPLE_SONIC_PROM_BASE 0x40000
108
109/* Daynalink LC SONIC */
110#define DAYNALINK_PROM_BASE 0x400000
111
112/* For Dayna-style NuBus SONIC (haven't seen one yet) */
113#define DAYNA_SONIC_REGISTERS 0x180000
114/* This is what OpenBSD says. However, this is definitely in NuBus
115 ROM space so we should be able to get it by walking the NuBus
116 resource directories */
117#define DAYNA_SONIC_MAC_ADDR 0xffe004
118
119#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
120
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121/*
122 * For reversing the PROM address
123 */
124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125static inline void bit_reverse_addr(unsigned char addr[6])
126{
127 int i;
128
129 for(i = 0; i < 6; i++)
Akinobu Mitabc63eb92006-12-19 13:09:08 -0800130 addr[i] = bitrev8(addr[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131}
132
Finn Thainf4d86752007-05-02 12:55:56 +1000133static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
134{
135 irqreturn_t result;
136 unsigned long flags;
137
138 local_irq_save(flags);
139 result = sonic_interrupt(irq, dev_id);
140 local_irq_restore(flags);
141 return result;
142}
143
144static int macsonic_open(struct net_device* dev)
145{
146 if (request_irq(dev->irq, &sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
147 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
148 return -EAGAIN;
149 }
150 /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
151 * in at priority level 3. However, we sometimes get the level 2 inter-
152 * rupt as well, which must prevent re-entrance of the sonic handler.
153 */
154 if (dev->irq == IRQ_AUTO_3)
155 if (request_irq(IRQ_NUBUS_9, &macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
156 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, IRQ_NUBUS_9);
157 free_irq(dev->irq, dev);
158 return -EAGAIN;
159 }
160 return sonic_open(dev);
161}
162
163static int macsonic_close(struct net_device* dev)
164{
165 int err;
166 err = sonic_close(dev);
167 free_irq(dev->irq, dev);
168 if (dev->irq == IRQ_AUTO_3)
169 free_irq(IRQ_NUBUS_9, dev);
170 return err;
171}
172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173int __init macsonic_init(struct net_device* dev)
174{
Finn Thainefcce832005-08-20 15:53:22 +1000175 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
177 /* Allocate the entire chunk of memory for the descriptors.
178 Note that this cannot cross a 64K boundary. */
Finn Thainefcce832005-08-20 15:53:22 +1000179 if ((lp->descriptors = dma_alloc_coherent(lp->device,
180 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
181 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
182 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 return -ENOMEM;
Finn Thainefcce832005-08-20 15:53:22 +1000184 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185
186 /* Now set up the pointers to point to the appropriate places */
Finn Thainefcce832005-08-20 15:53:22 +1000187 lp->cda = lp->descriptors;
188 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
189 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
Finn Thainefcce832005-08-20 15:53:22 +1000191 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
Finn Thainefcce832005-08-20 15:53:22 +1000193 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194
Finn Thainefcce832005-08-20 15:53:22 +1000195 lp->cda_laddr = lp->descriptors_laddr;
196 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
197 * SONIC_BUS_SCALE(lp->dma_bitmode));
198 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
199 * SONIC_BUS_SCALE(lp->dma_bitmode));
200 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
201 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202
Finn Thainf4d86752007-05-02 12:55:56 +1000203 dev->open = macsonic_open;
204 dev->stop = macsonic_close;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 dev->hard_start_xmit = sonic_send_packet;
206 dev->get_stats = sonic_get_stats;
207 dev->set_multicast_list = &sonic_multicast_list;
Finn Thainefcce832005-08-20 15:53:22 +1000208 dev->tx_timeout = sonic_tx_timeout;
209 dev->watchdog_timeo = TX_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
211 /*
212 * clear tally counter
213 */
Finn Thainefcce832005-08-20 15:53:22 +1000214 SONIC_WRITE(SONIC_CRCT, 0xffff);
215 SONIC_WRITE(SONIC_FAET, 0xffff);
216 SONIC_WRITE(SONIC_MPT, 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218 return 0;
219}
220
221int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
222{
Finn Thainefcce832005-08-20 15:53:22 +1000223 struct sonic_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
225 int i;
Joe Perches0795af52007-10-03 17:59:30 -0700226 DECLARE_MAC_BUF(mac);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227
228 /* On NuBus boards we can sometimes look in the ROM resources.
229 No such luck for comm-slot/onboard. */
230 for(i = 0; i < 6; i++)
231 dev->dev_addr[i] = SONIC_READ_PROM(i);
232
233 /* Most of the time, the address is bit-reversed. The NetBSD
234 source has a rather long and detailed historical account of
235 why this is so. */
236 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
237 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000238 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
240 bit_reverse_addr(dev->dev_addr);
241 else
242 return 0;
243
244 /* If we still have what seems to be a bogus address, we'll
245 look in the CAM. The top entry should be ours. */
246 /* Danger! This only works if MacOS has already initialized
247 the card... */
248 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
249 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000250 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
252 {
253 unsigned short val;
254
255 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400256
Finn Thainefcce832005-08-20 15:53:22 +1000257 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
258 SONIC_WRITE(SONIC_CEP, 15);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259
Finn Thainefcce832005-08-20 15:53:22 +1000260 val = SONIC_READ(SONIC_CAP2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 dev->dev_addr[5] = val >> 8;
262 dev->dev_addr[4] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000263 val = SONIC_READ(SONIC_CAP1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 dev->dev_addr[3] = val >> 8;
265 dev->dev_addr[2] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000266 val = SONIC_READ(SONIC_CAP0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 dev->dev_addr[1] = val >> 8;
268 dev->dev_addr[0] = val & 0xff;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400269
Joe Perches0795af52007-10-03 17:59:30 -0700270 printk(KERN_INFO "HW Address from CAM 15: %s\n",
271 print_mac(mac, dev->dev_addr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 } else return 0;
273
274 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
275 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000276 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
278 {
279 /*
280 * Still nonsense ... messed up someplace!
281 */
282 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
283 return -EIO;
284 } else return 0;
285}
286
287int __init mac_onboard_sonic_probe(struct net_device* dev)
288{
289 /* Bwahahaha */
290 static int once_is_more_than_enough;
Finn Thainefcce832005-08-20 15:53:22 +1000291 struct sonic_local* lp = netdev_priv(dev);
292 int sr;
293 int commslot = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 if (once_is_more_than_enough)
296 return -ENODEV;
297 once_is_more_than_enough = 1;
298
299 if (!MACH_IS_MAC)
300 return -ENODEV;
301
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 return -ENODEV;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400304
Finn Thainefcce832005-08-20 15:53:22 +1000305 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400306
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307 /* Bogus probing, on the models which may or may not have
308 Ethernet (BTW, the Ethernet *is* always at the same
309 address, and nothing else lives there, at least if Apple's
310 documentation is to be believed) */
311 if (macintosh_config->ident == MAC_MODEL_Q630 ||
312 macintosh_config->ident == MAC_MODEL_P588 ||
Finn Thainefcce832005-08-20 15:53:22 +1000313 macintosh_config->ident == MAC_MODEL_P575 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 macintosh_config->ident == MAC_MODEL_C610) {
315 unsigned long flags;
316 int card_present;
317
318 local_irq_save(flags);
319 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
320 local_irq_restore(flags);
321
322 if (!card_present) {
323 printk("none.\n");
324 return -ENODEV;
325 }
Finn Thainefcce832005-08-20 15:53:22 +1000326 commslot = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 }
328
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400329 printk("yes\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330
Finn Thainefcce832005-08-20 15:53:22 +1000331 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
332 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 dev->base_addr = ONBOARD_SONIC_REGISTERS;
334 if (via_alt_mapping)
335 dev->irq = IRQ_AUTO_3;
336 else
337 dev->irq = IRQ_NUBUS_9;
338
339 if (!sonic_version_printed) {
340 printk(KERN_INFO "%s", version);
341 sonic_version_printed = 1;
342 }
343 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
Finn Thainefcce832005-08-20 15:53:22 +1000344 lp->device->bus_id, dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
346 /* The PowerBook's SONIC is 16 bit always. */
347 if (macintosh_config->ident == MAC_MODEL_PB520) {
Finn Thainefcce832005-08-20 15:53:22 +1000348 lp->reg_offset = 0;
349 lp->dma_bitmode = SONIC_BITMODE16;
350 sr = SONIC_READ(SONIC_SR);
351 } else if (commslot) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 /* Some of the comm-slot cards are 16 bit. But some
Finn Thainefcce832005-08-20 15:53:22 +1000353 of them are not. The 32-bit cards use offset 2 and
354 have known revisions, we try reading the revision
355 register at offset 2, if we don't get a known revision
356 we assume 16 bit at offset 0. */
357 lp->reg_offset = 2;
358 lp->dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
Finn Thainefcce832005-08-20 15:53:22 +1000360 sr = SONIC_READ(SONIC_SR);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400361 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
Finn Thainefcce832005-08-20 15:53:22 +1000362 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
363 lp->dma_bitmode = SONIC_BITMODE32;
364 else {
365 lp->dma_bitmode = SONIC_BITMODE16;
366 lp->reg_offset = 0;
367 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 }
Finn Thainefcce832005-08-20 15:53:22 +1000369 } else {
370 /* All onboard cards are at offset 2 with 32 bit DMA. */
371 lp->reg_offset = 2;
372 lp->dma_bitmode = SONIC_BITMODE32;
373 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374 }
Finn Thainefcce832005-08-20 15:53:22 +1000375 printk(KERN_INFO
376 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
377 lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
Finn Thainefcce832005-08-20 15:53:22 +1000379#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
380 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
381 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
382#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000385 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
386
387 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
388 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
389 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
391 /* This *must* be written back to in order to restore the
Finn Thainefcce832005-08-20 15:53:22 +1000392 * extended programmable output bits, as it may not have been
393 * initialised since the hardware reset. */
394 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395
396 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000397 SONIC_WRITE(SONIC_IMR, 0);
398 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399
400 /* Now look for the MAC address. */
401 if (mac_onboard_sonic_ethernet_addr(dev) != 0)
402 return -ENODEV;
403
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 /* Shared init code */
405 return macsonic_init(dev);
406}
407
408int __init mac_nubus_sonic_ethernet_addr(struct net_device* dev,
409 unsigned long prom_addr,
410 int id)
411{
412 int i;
413 for(i = 0; i < 6; i++)
414 dev->dev_addr[i] = SONIC_READ_PROM(i);
Finn Thainefcce832005-08-20 15:53:22 +1000415
416 /* Some of the addresses are bit-reversed */
417 if (id != MACSONIC_DAYNA)
418 bit_reverse_addr(dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
420 return 0;
421}
422
423int __init macsonic_ident(struct nubus_dev* ndev)
424{
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400425 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
427 return MACSONIC_DAYNALINK;
428 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
429 ndev->dr_sw == NUBUS_DRSW_APPLE) {
430 /* There has to be a better way to do this... */
431 if (strstr(ndev->board->name, "DuoDock"))
432 return MACSONIC_DUODOCK;
433 else
434 return MACSONIC_APPLE;
435 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400436
Finn Thainefcce832005-08-20 15:53:22 +1000437 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
438 ndev->dr_sw == NUBUS_DRSW_DAYNA)
439 return MACSONIC_DAYNA;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400440
Finn Thainf8779582007-05-01 22:32:53 +0200441 if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
Finn Thainefcce832005-08-20 15:53:22 +1000442 ndev->dr_sw == 0) { /* huh? */
443 return MACSONIC_APPLE16;
444 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 return -1;
446}
447
448int __init mac_nubus_sonic_probe(struct net_device* dev)
449{
450 static int slots;
451 struct nubus_dev* ndev = NULL;
Finn Thainefcce832005-08-20 15:53:22 +1000452 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453 unsigned long base_addr, prom_addr;
454 u16 sonic_dcr;
Finn Thainefcce832005-08-20 15:53:22 +1000455 int id = -1;
456 int reg_offset, dma_bitmode;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400457
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 /* Find the first SONIC that hasn't been initialized already */
459 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
460 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
461 {
462 /* Have we seen it already? */
463 if (slots & (1<<ndev->board->slot))
464 continue;
465 slots |= 1<<ndev->board->slot;
466
467 /* Is it one of ours? */
468 if ((id = macsonic_ident(ndev)) != -1)
469 break;
470 }
471
472 if (ndev == NULL)
473 return -ENODEV;
474
475 switch (id) {
476 case MACSONIC_DUODOCK:
477 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
478 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000479 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
480 SONIC_DCR_TFT0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 reg_offset = 2;
Finn Thainefcce832005-08-20 15:53:22 +1000482 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 break;
484 case MACSONIC_APPLE:
485 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
486 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
487 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
488 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000489 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 break;
491 case MACSONIC_APPLE16:
492 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
493 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000494 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400495 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000497 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 break;
499 case MACSONIC_DAYNALINK:
500 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
501 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000502 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400503 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000505 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 break;
507 case MACSONIC_DAYNA:
508 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
509 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
Finn Thainefcce832005-08-20 15:53:22 +1000510 sonic_dcr = SONIC_DCR_BMS |
511 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000513 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 break;
515 default:
516 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
517 return -ENODEV;
518 }
519
Finn Thainefcce832005-08-20 15:53:22 +1000520 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
521 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 dev->base_addr = base_addr;
Finn Thainefcce832005-08-20 15:53:22 +1000523 lp->reg_offset = reg_offset;
524 lp->dma_bitmode = dma_bitmode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 dev->irq = SLOT2IRQ(ndev->board->slot);
526
527 if (!sonic_version_printed) {
528 printk(KERN_INFO "%s", version);
529 sonic_version_printed = 1;
530 }
531 printk(KERN_INFO "%s: %s in slot %X\n",
Finn Thainefcce832005-08-20 15:53:22 +1000532 lp->device->bus_id, ndev->board->name, ndev->board->slot);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
Finn Thainefcce832005-08-20 15:53:22 +1000534 lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535
Finn Thainefcce832005-08-20 15:53:22 +1000536#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
537 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
538 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
539#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540
541 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000542 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
543 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
544 /* This *must* be written back to in order to restore the
545 * extended programmable output bits, since it may not have been
546 * initialised since the hardware reset. */
547 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548
549 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000550 SONIC_WRITE(SONIC_IMR, 0);
551 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552
553 /* Now look for the MAC address. */
554 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
555 return -ENODEV;
556
Finn Thainefcce832005-08-20 15:53:22 +1000557 /* Shared init code */
558 return macsonic_init(dev);
559}
560
Finn Thaind74472f2007-05-01 22:33:02 +0200561static int __init mac_sonic_probe(struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000562{
563 struct net_device *dev;
564 struct sonic_local *lp;
565 int err;
Joe Perches0795af52007-10-03 17:59:30 -0700566 DECLARE_MAC_BUF(mac);
Finn Thainefcce832005-08-20 15:53:22 +1000567
568 dev = alloc_etherdev(sizeof(struct sonic_local));
569 if (!dev)
570 return -ENOMEM;
571
572 lp = netdev_priv(dev);
Finn Thaind74472f2007-05-01 22:33:02 +0200573 lp->device = &pdev->dev;
574 SET_NETDEV_DEV(dev, &pdev->dev);
Finn Thainefcce832005-08-20 15:53:22 +1000575
576 /* This will catch fatal stuff like -ENOMEM as well as success */
577 err = mac_onboard_sonic_probe(dev);
578 if (err == 0)
579 goto found;
580 if (err != -ENODEV)
581 goto out;
582 err = mac_nubus_sonic_probe(dev);
583 if (err)
584 goto out;
585found:
586 err = register_netdev(dev);
587 if (err)
588 goto out;
589
Joe Perches0795af52007-10-03 17:59:30 -0700590 printk("%s: MAC %s IRQ %d\n",
591 dev->name, print_mac(mac, dev->dev_addr), dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592
Finn Thainefcce832005-08-20 15:53:22 +1000593 return 0;
594
595out:
596 free_netdev(dev);
597
598 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599}
600
Finn Thainefcce832005-08-20 15:53:22 +1000601MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
602module_param(sonic_debug, int, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605#include "sonic.c"
606
Finn Thaind74472f2007-05-01 22:33:02 +0200607static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000608{
Finn Thaind74472f2007-05-01 22:33:02 +0200609 struct net_device *dev = platform_get_drvdata(pdev);
Finn Thainefcce832005-08-20 15:53:22 +1000610 struct sonic_local* lp = netdev_priv(dev);
611
Finn Thaind74472f2007-05-01 22:33:02 +0200612 unregister_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000613 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
614 lp->descriptors, lp->descriptors_laddr);
Finn Thaind74472f2007-05-01 22:33:02 +0200615 free_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000616
617 return 0;
618}
619
Russell King3ae5eae2005-11-09 22:32:44 +0000620static struct platform_driver mac_sonic_driver = {
Finn Thainefcce832005-08-20 15:53:22 +1000621 .probe = mac_sonic_probe,
622 .remove = __devexit_p(mac_sonic_device_remove),
Russell King3ae5eae2005-11-09 22:32:44 +0000623 .driver = {
624 .name = mac_sonic_string,
625 },
Finn Thainefcce832005-08-20 15:53:22 +1000626};
627
Finn Thainefcce832005-08-20 15:53:22 +1000628static int __init mac_sonic_init_module(void)
629{
Finn Thainefcce832005-08-20 15:53:22 +1000630 int err;
631
Russell King3ae5eae2005-11-09 22:32:44 +0000632 if ((err = platform_driver_register(&mac_sonic_driver))) {
Finn Thainefcce832005-08-20 15:53:22 +1000633 printk(KERN_ERR "Driver registration failed\n");
634 return err;
635 }
636
Russell King09c65182005-11-05 21:21:10 +0000637 mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
Finn Thaind74472f2007-05-01 22:33:02 +0200638 if (!mac_sonic_device)
Finn Thainefcce832005-08-20 15:53:22 +1000639 goto out_unregister;
Finn Thainefcce832005-08-20 15:53:22 +1000640
Russell King09c65182005-11-05 21:21:10 +0000641 if (platform_device_add(mac_sonic_device)) {
642 platform_device_put(mac_sonic_device);
Finn Thainefcce832005-08-20 15:53:22 +1000643 mac_sonic_device = NULL;
644 }
645
646 return 0;
647
648out_unregister:
Al Viroded5ca12005-12-04 02:28:40 -0500649 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000650
651 return -ENOMEM;
652}
653
654static void __exit mac_sonic_cleanup_module(void)
655{
Russell King3ae5eae2005-11-09 22:32:44 +0000656 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000657
658 if (mac_sonic_device) {
659 platform_device_unregister(mac_sonic_device);
660 mac_sonic_device = NULL;
661 }
662}
663
664module_init(mac_sonic_init_module);
665module_exit(mac_sonic_cleanup_module);