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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 -070086/* For onboard SONIC */
87#define ONBOARD_SONIC_REGISTERS 0x50F0A000
88#define ONBOARD_SONIC_PROM_BASE 0x50f08000
89
90enum macsonic_type {
91 MACSONIC_DUODOCK,
92 MACSONIC_APPLE,
93 MACSONIC_APPLE16,
94 MACSONIC_DAYNA,
95 MACSONIC_DAYNALINK
96};
97
98/* For the built-in SONIC in the Duo Dock */
99#define DUODOCK_SONIC_REGISTERS 0xe10000
100#define DUODOCK_SONIC_PROM_BASE 0xe12000
101
102/* For Apple-style NuBus SONIC */
103#define APPLE_SONIC_REGISTERS 0
104#define APPLE_SONIC_PROM_BASE 0x40000
105
106/* Daynalink LC SONIC */
107#define DAYNALINK_PROM_BASE 0x400000
108
109/* For Dayna-style NuBus SONIC (haven't seen one yet) */
110#define DAYNA_SONIC_REGISTERS 0x180000
111/* This is what OpenBSD says. However, this is definitely in NuBus
112 ROM space so we should be able to get it by walking the NuBus
113 resource directories */
114#define DAYNA_SONIC_MAC_ADDR 0xffe004
115
116#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118/*
119 * For reversing the PROM address
120 */
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122static inline void bit_reverse_addr(unsigned char addr[6])
123{
124 int i;
125
126 for(i = 0; i < 6; i++)
Akinobu Mitabc63eb92006-12-19 13:09:08 -0800127 addr[i] = bitrev8(addr[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128}
129
Finn Thainf4d86752007-05-02 12:55:56 +1000130static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
131{
132 irqreturn_t result;
133 unsigned long flags;
134
135 local_irq_save(flags);
136 result = sonic_interrupt(irq, dev_id);
137 local_irq_restore(flags);
138 return result;
139}
140
141static int macsonic_open(struct net_device* dev)
142{
Joe Perchesa0607fd2009-11-18 23:29:17 -0800143 if (request_irq(dev->irq, sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
Finn Thainf4d86752007-05-02 12:55:56 +1000144 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
145 return -EAGAIN;
146 }
147 /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
148 * in at priority level 3. However, we sometimes get the level 2 inter-
149 * rupt as well, which must prevent re-entrance of the sonic handler.
150 */
151 if (dev->irq == IRQ_AUTO_3)
Joe Perchesa0607fd2009-11-18 23:29:17 -0800152 if (request_irq(IRQ_NUBUS_9, macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
Finn Thainf4d86752007-05-02 12:55:56 +1000153 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, IRQ_NUBUS_9);
154 free_irq(dev->irq, dev);
155 return -EAGAIN;
156 }
157 return sonic_open(dev);
158}
159
160static int macsonic_close(struct net_device* dev)
161{
162 int err;
163 err = sonic_close(dev);
164 free_irq(dev->irq, dev);
165 if (dev->irq == IRQ_AUTO_3)
166 free_irq(IRQ_NUBUS_9, dev);
167 return err;
168}
169
Alexander Beregalovc6e6d852009-04-11 07:41:28 +0000170static const struct net_device_ops macsonic_netdev_ops = {
171 .ndo_open = macsonic_open,
172 .ndo_stop = macsonic_close,
173 .ndo_start_xmit = sonic_send_packet,
174 .ndo_set_multicast_list = sonic_multicast_list,
175 .ndo_tx_timeout = sonic_tx_timeout,
176 .ndo_get_stats = sonic_get_stats,
177 .ndo_validate_addr = eth_validate_addr,
178 .ndo_change_mtu = eth_change_mtu,
179 .ndo_set_mac_address = eth_mac_addr,
180};
181
Uwe Kleine-König251774762009-07-11 20:52:48 +0000182static int __devinit macsonic_init(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183{
Finn Thainefcce832005-08-20 15:53:22 +1000184 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185
186 /* Allocate the entire chunk of memory for the descriptors.
187 Note that this cannot cross a 64K boundary. */
Finn Thainefcce832005-08-20 15:53:22 +1000188 if ((lp->descriptors = dma_alloc_coherent(lp->device,
189 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
190 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
Kay Sieversc2313552009-03-24 16:38:22 -0700191 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n",
192 dev_name(lp->device));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 return -ENOMEM;
Finn Thainefcce832005-08-20 15:53:22 +1000194 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195
196 /* Now set up the pointers to point to the appropriate places */
Finn Thainefcce832005-08-20 15:53:22 +1000197 lp->cda = lp->descriptors;
198 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
199 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
Finn Thainefcce832005-08-20 15:53:22 +1000201 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
Finn Thainefcce832005-08-20 15:53:22 +1000203 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204
Finn Thainefcce832005-08-20 15:53:22 +1000205 lp->cda_laddr = lp->descriptors_laddr;
206 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
207 * SONIC_BUS_SCALE(lp->dma_bitmode));
208 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
209 * SONIC_BUS_SCALE(lp->dma_bitmode));
210 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
211 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212
Alexander Beregalovc6e6d852009-04-11 07:41:28 +0000213 dev->netdev_ops = &macsonic_netdev_ops;
Finn Thainefcce832005-08-20 15:53:22 +1000214 dev->watchdog_timeo = TX_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
216 /*
217 * clear tally counter
218 */
Finn Thainefcce832005-08-20 15:53:22 +1000219 SONIC_WRITE(SONIC_CRCT, 0xffff);
220 SONIC_WRITE(SONIC_FAET, 0xffff);
221 SONIC_WRITE(SONIC_MPT, 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222
223 return 0;
224}
225
Finn Thaindcaa6a92009-11-03 03:42:40 +0000226#define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \
227 memcmp(mac, "\x00\xA0\x40", 3) && \
228 memcmp(mac, "\x00\x80\x19", 3) && \
229 memcmp(mac, "\x00\x05\x02", 3))
230
231static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232{
Finn Thainefcce832005-08-20 15:53:22 +1000233 struct sonic_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
Finn Thaindcaa6a92009-11-03 03:42:40 +0000235 unsigned short val;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Finn Thaindcaa6a92009-11-03 03:42:40 +0000237 /*
238 * On NuBus boards we can sometimes look in the ROM resources.
239 * No such luck for comm-slot/onboard.
240 * On the PowerBook 520, the PROM base address is a mystery.
241 */
242 if (hwreg_present((void *)prom_addr)) {
243 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
Finn Thaindcaa6a92009-11-03 03:42:40 +0000245 for (i = 0; i < 6; i++)
246 dev->dev_addr[i] = SONIC_READ_PROM(i);
247 if (!INVALID_MAC(dev->dev_addr))
248 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 /*
Finn Thaindcaa6a92009-11-03 03:42:40 +0000251 * Most of the time, the address is bit-reversed. The NetBSD
252 * source has a rather long and detailed historical account of
253 * why this is so.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 */
Finn Thaindcaa6a92009-11-03 03:42:40 +0000255 bit_reverse_addr(dev->dev_addr);
256 if (!INVALID_MAC(dev->dev_addr))
257 return;
258
259 /*
260 * If we still have what seems to be a bogus address, we'll
261 * look in the CAM. The top entry should be ours.
262 */
263 printk(KERN_WARNING "macsonic: MAC address in PROM seems "
264 "to be invalid, trying CAM\n");
265 } else {
266 printk(KERN_WARNING "macsonic: cannot read MAC address from "
267 "PROM, trying CAM\n");
268 }
269
270 /* This only works if MacOS has already initialized the card. */
271
272 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
273 SONIC_WRITE(SONIC_CEP, 15);
274
275 val = SONIC_READ(SONIC_CAP2);
276 dev->dev_addr[5] = val >> 8;
277 dev->dev_addr[4] = val & 0xff;
278 val = SONIC_READ(SONIC_CAP1);
279 dev->dev_addr[3] = val >> 8;
280 dev->dev_addr[2] = val & 0xff;
281 val = SONIC_READ(SONIC_CAP0);
282 dev->dev_addr[1] = val >> 8;
283 dev->dev_addr[0] = val & 0xff;
284
285 if (!INVALID_MAC(dev->dev_addr))
286 return;
287
288 /* Still nonsense ... messed up someplace! */
289
290 printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
291 "seems invalid, will use a random MAC\n");
292 random_ether_addr(dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293}
294
Uwe Kleine-König251774762009-07-11 20:52:48 +0000295static int __devinit mac_onboard_sonic_probe(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296{
297 /* Bwahahaha */
298 static int once_is_more_than_enough;
Finn Thainefcce832005-08-20 15:53:22 +1000299 struct sonic_local* lp = netdev_priv(dev);
300 int sr;
301 int commslot = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400302
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 if (once_is_more_than_enough)
304 return -ENODEV;
305 once_is_more_than_enough = 1;
306
307 if (!MACH_IS_MAC)
308 return -ENODEV;
309
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 return -ENODEV;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400312
Finn Thainefcce832005-08-20 15:53:22 +1000313 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 /* Bogus probing, on the models which may or may not have
316 Ethernet (BTW, the Ethernet *is* always at the same
317 address, and nothing else lives there, at least if Apple's
318 documentation is to be believed) */
319 if (macintosh_config->ident == MAC_MODEL_Q630 ||
320 macintosh_config->ident == MAC_MODEL_P588 ||
Finn Thainefcce832005-08-20 15:53:22 +1000321 macintosh_config->ident == MAC_MODEL_P575 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 macintosh_config->ident == MAC_MODEL_C610) {
323 unsigned long flags;
324 int card_present;
325
326 local_irq_save(flags);
327 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
328 local_irq_restore(flags);
329
330 if (!card_present) {
331 printk("none.\n");
332 return -ENODEV;
333 }
Finn Thainefcce832005-08-20 15:53:22 +1000334 commslot = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 }
336
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400337 printk("yes\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Finn Thainefcce832005-08-20 15:53:22 +1000339 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
340 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 dev->base_addr = ONBOARD_SONIC_REGISTERS;
342 if (via_alt_mapping)
343 dev->irq = IRQ_AUTO_3;
344 else
345 dev->irq = IRQ_NUBUS_9;
346
347 if (!sonic_version_printed) {
348 printk(KERN_INFO "%s", version);
349 sonic_version_printed = 1;
350 }
351 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
Kay Sieversc2313552009-03-24 16:38:22 -0700352 dev_name(lp->device), dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353
354 /* The PowerBook's SONIC is 16 bit always. */
355 if (macintosh_config->ident == MAC_MODEL_PB520) {
Finn Thainefcce832005-08-20 15:53:22 +1000356 lp->reg_offset = 0;
357 lp->dma_bitmode = SONIC_BITMODE16;
358 sr = SONIC_READ(SONIC_SR);
359 } else if (commslot) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 /* Some of the comm-slot cards are 16 bit. But some
Finn Thainefcce832005-08-20 15:53:22 +1000361 of them are not. The 32-bit cards use offset 2 and
362 have known revisions, we try reading the revision
363 register at offset 2, if we don't get a known revision
364 we assume 16 bit at offset 0. */
365 lp->reg_offset = 2;
366 lp->dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Finn Thainefcce832005-08-20 15:53:22 +1000368 sr = SONIC_READ(SONIC_SR);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400369 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
Finn Thainefcce832005-08-20 15:53:22 +1000370 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
371 lp->dma_bitmode = SONIC_BITMODE32;
372 else {
373 lp->dma_bitmode = SONIC_BITMODE16;
374 lp->reg_offset = 0;
375 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 }
Finn Thainefcce832005-08-20 15:53:22 +1000377 } else {
378 /* All onboard cards are at offset 2 with 32 bit DMA. */
379 lp->reg_offset = 2;
380 lp->dma_bitmode = SONIC_BITMODE32;
381 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 }
Finn Thainefcce832005-08-20 15:53:22 +1000383 printk(KERN_INFO
384 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
Kay Sieversc2313552009-03-24 16:38:22 -0700385 dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
Finn Thainefcce832005-08-20 15:53:22 +1000387#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
Kay Sieversc2313552009-03-24 16:38:22 -0700388 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
Finn Thainefcce832005-08-20 15:53:22 +1000389 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
390#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000393 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
394
395 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
396 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
397 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
399 /* This *must* be written back to in order to restore the
Finn Thainefcce832005-08-20 15:53:22 +1000400 * extended programmable output bits, as it may not have been
401 * initialised since the hardware reset. */
402 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403
404 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000405 SONIC_WRITE(SONIC_IMR, 0);
406 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
408 /* Now look for the MAC address. */
Finn Thaindcaa6a92009-11-03 03:42:40 +0000409 mac_onboard_sonic_ethernet_addr(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 /* Shared init code */
412 return macsonic_init(dev);
413}
414
Uwe Kleine-König251774762009-07-11 20:52:48 +0000415static int __devinit mac_nubus_sonic_ethernet_addr(struct net_device *dev,
Adrian Bunk44f74c02008-06-10 01:23:47 +0300416 unsigned long prom_addr,
417 int id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418{
419 int i;
420 for(i = 0; i < 6; i++)
421 dev->dev_addr[i] = SONIC_READ_PROM(i);
Finn Thainefcce832005-08-20 15:53:22 +1000422
423 /* Some of the addresses are bit-reversed */
424 if (id != MACSONIC_DAYNA)
425 bit_reverse_addr(dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
427 return 0;
428}
429
Uwe Kleine-König251774762009-07-11 20:52:48 +0000430static int __devinit macsonic_ident(struct nubus_dev *ndev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431{
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400432 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
434 return MACSONIC_DAYNALINK;
435 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
436 ndev->dr_sw == NUBUS_DRSW_APPLE) {
437 /* There has to be a better way to do this... */
438 if (strstr(ndev->board->name, "DuoDock"))
439 return MACSONIC_DUODOCK;
440 else
441 return MACSONIC_APPLE;
442 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400443
Finn Thainefcce832005-08-20 15:53:22 +1000444 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
445 ndev->dr_sw == NUBUS_DRSW_DAYNA)
446 return MACSONIC_DAYNA;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400447
Finn Thainf8779582007-05-01 22:32:53 +0200448 if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
Finn Thainefcce832005-08-20 15:53:22 +1000449 ndev->dr_sw == 0) { /* huh? */
450 return MACSONIC_APPLE16;
451 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 return -1;
453}
454
Uwe Kleine-König251774762009-07-11 20:52:48 +0000455static int __devinit mac_nubus_sonic_probe(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456{
457 static int slots;
458 struct nubus_dev* ndev = NULL;
Finn Thainefcce832005-08-20 15:53:22 +1000459 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 unsigned long base_addr, prom_addr;
461 u16 sonic_dcr;
Finn Thainefcce832005-08-20 15:53:22 +1000462 int id = -1;
463 int reg_offset, dma_bitmode;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400464
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 /* Find the first SONIC that hasn't been initialized already */
466 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
467 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
468 {
469 /* Have we seen it already? */
470 if (slots & (1<<ndev->board->slot))
471 continue;
472 slots |= 1<<ndev->board->slot;
473
474 /* Is it one of ours? */
475 if ((id = macsonic_ident(ndev)) != -1)
476 break;
477 }
478
479 if (ndev == NULL)
480 return -ENODEV;
481
482 switch (id) {
483 case MACSONIC_DUODOCK:
484 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
485 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000486 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
487 SONIC_DCR_TFT0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 reg_offset = 2;
Finn Thainefcce832005-08-20 15:53:22 +1000489 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 break;
491 case MACSONIC_APPLE:
492 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
493 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
494 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
495 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000496 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 break;
498 case MACSONIC_APPLE16:
499 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
500 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000501 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400502 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000504 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505 break;
506 case MACSONIC_DAYNALINK:
507 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
508 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000509 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400510 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000512 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513 break;
514 case MACSONIC_DAYNA:
515 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
516 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
Finn Thainefcce832005-08-20 15:53:22 +1000517 sonic_dcr = SONIC_DCR_BMS |
518 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000520 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 break;
522 default:
523 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
524 return -ENODEV;
525 }
526
Finn Thainefcce832005-08-20 15:53:22 +1000527 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
528 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 dev->base_addr = base_addr;
Finn Thainefcce832005-08-20 15:53:22 +1000530 lp->reg_offset = reg_offset;
531 lp->dma_bitmode = dma_bitmode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 dev->irq = SLOT2IRQ(ndev->board->slot);
533
534 if (!sonic_version_printed) {
535 printk(KERN_INFO "%s", version);
536 sonic_version_printed = 1;
537 }
538 printk(KERN_INFO "%s: %s in slot %X\n",
Kay Sieversc2313552009-03-24 16:38:22 -0700539 dev_name(lp->device), ndev->board->name, ndev->board->slot);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
Kay Sieversc2313552009-03-24 16:38:22 -0700541 dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542
Finn Thainefcce832005-08-20 15:53:22 +1000543#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
Kay Sieversc2313552009-03-24 16:38:22 -0700544 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
Finn Thainefcce832005-08-20 15:53:22 +1000545 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
546#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547
548 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000549 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
550 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
551 /* This *must* be written back to in order to restore the
552 * extended programmable output bits, since it may not have been
553 * initialised since the hardware reset. */
554 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555
556 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000557 SONIC_WRITE(SONIC_IMR, 0);
558 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559
560 /* Now look for the MAC address. */
561 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
562 return -ENODEV;
563
Finn Thainefcce832005-08-20 15:53:22 +1000564 /* Shared init code */
565 return macsonic_init(dev);
566}
567
Uwe Kleine-König251774762009-07-11 20:52:48 +0000568static int __devinit mac_sonic_probe(struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000569{
570 struct net_device *dev;
571 struct sonic_local *lp;
572 int err;
Finn Thainefcce832005-08-20 15:53:22 +1000573
574 dev = alloc_etherdev(sizeof(struct sonic_local));
575 if (!dev)
576 return -ENOMEM;
577
578 lp = netdev_priv(dev);
Finn Thaind74472f2007-05-01 22:33:02 +0200579 lp->device = &pdev->dev;
580 SET_NETDEV_DEV(dev, &pdev->dev);
Finn Thain4564cba2009-07-21 12:21:49 -0700581 platform_set_drvdata(pdev, dev);
Finn Thainefcce832005-08-20 15:53:22 +1000582
583 /* This will catch fatal stuff like -ENOMEM as well as success */
584 err = mac_onboard_sonic_probe(dev);
585 if (err == 0)
586 goto found;
587 if (err != -ENODEV)
588 goto out;
589 err = mac_nubus_sonic_probe(dev);
590 if (err)
591 goto out;
592found:
593 err = register_netdev(dev);
594 if (err)
595 goto out;
596
Johannes Berge1749612008-10-27 15:59:26 -0700597 printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598
Finn Thainefcce832005-08-20 15:53:22 +1000599 return 0;
600
601out:
602 free_netdev(dev);
603
604 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605}
606
Finn Thainefcce832005-08-20 15:53:22 +1000607MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
608module_param(sonic_debug, int, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
610
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611#include "sonic.c"
612
Finn Thaind74472f2007-05-01 22:33:02 +0200613static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000614{
Finn Thaind74472f2007-05-01 22:33:02 +0200615 struct net_device *dev = platform_get_drvdata(pdev);
Finn Thainefcce832005-08-20 15:53:22 +1000616 struct sonic_local* lp = netdev_priv(dev);
617
Finn Thaind74472f2007-05-01 22:33:02 +0200618 unregister_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000619 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
620 lp->descriptors, lp->descriptors_laddr);
Finn Thaind74472f2007-05-01 22:33:02 +0200621 free_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000622
623 return 0;
624}
625
Russell King3ae5eae2005-11-09 22:32:44 +0000626static struct platform_driver mac_sonic_driver = {
Finn Thainefcce832005-08-20 15:53:22 +1000627 .probe = mac_sonic_probe,
628 .remove = __devexit_p(mac_sonic_device_remove),
Russell King3ae5eae2005-11-09 22:32:44 +0000629 .driver = {
630 .name = mac_sonic_string,
631 },
Finn Thainefcce832005-08-20 15:53:22 +1000632};
633
Finn Thainefcce832005-08-20 15:53:22 +1000634static int __init mac_sonic_init_module(void)
635{
Finn Thainefcce832005-08-20 15:53:22 +1000636 int err;
637
Russell King3ae5eae2005-11-09 22:32:44 +0000638 if ((err = platform_driver_register(&mac_sonic_driver))) {
Finn Thainefcce832005-08-20 15:53:22 +1000639 printk(KERN_ERR "Driver registration failed\n");
640 return err;
641 }
642
Russell King09c65182005-11-05 21:21:10 +0000643 mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
Finn Thaind74472f2007-05-01 22:33:02 +0200644 if (!mac_sonic_device)
Finn Thainefcce832005-08-20 15:53:22 +1000645 goto out_unregister;
Finn Thainefcce832005-08-20 15:53:22 +1000646
Russell King09c65182005-11-05 21:21:10 +0000647 if (platform_device_add(mac_sonic_device)) {
648 platform_device_put(mac_sonic_device);
Finn Thainefcce832005-08-20 15:53:22 +1000649 mac_sonic_device = NULL;
650 }
651
652 return 0;
653
654out_unregister:
Al Viroded5ca12005-12-04 02:28:40 -0500655 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000656
657 return -ENOMEM;
658}
659
660static void __exit mac_sonic_cleanup_module(void)
661{
Russell King3ae5eae2005-11-09 22:32:44 +0000662 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000663
664 if (mac_sonic_device) {
665 platform_device_unregister(mac_sonic_device);
666 mac_sonic_device = NULL;
667 }
668}
669
670module_init(mac_sonic_init_module);
671module_exit(mac_sonic_cleanup_module);