blob: e64c2086d33c7ea9fcd8834b408a34f46de79c67 [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 -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{
143 if (request_irq(dev->irq, &sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
144 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)
152 if (request_irq(IRQ_NUBUS_9, &macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
153 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
Adrian Bunk44f74c02008-06-10 01:23:47 +0300170static int __init macsonic_init(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171{
Finn Thainefcce832005-08-20 15:53:22 +1000172 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174 /* Allocate the entire chunk of memory for the descriptors.
175 Note that this cannot cross a 64K boundary. */
Finn Thainefcce832005-08-20 15:53:22 +1000176 if ((lp->descriptors = dma_alloc_coherent(lp->device,
177 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
178 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
179 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 return -ENOMEM;
Finn Thainefcce832005-08-20 15:53:22 +1000181 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
183 /* Now set up the pointers to point to the appropriate places */
Finn Thainefcce832005-08-20 15:53:22 +1000184 lp->cda = lp->descriptors;
185 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
186 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
Finn Thainefcce832005-08-20 15:53:22 +1000188 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
Finn Thainefcce832005-08-20 15:53:22 +1000190 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191
Finn Thainefcce832005-08-20 15:53:22 +1000192 lp->cda_laddr = lp->descriptors_laddr;
193 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
194 * SONIC_BUS_SCALE(lp->dma_bitmode));
195 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
196 * SONIC_BUS_SCALE(lp->dma_bitmode));
197 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
198 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
Finn Thainf4d86752007-05-02 12:55:56 +1000200 dev->open = macsonic_open;
201 dev->stop = macsonic_close;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 dev->hard_start_xmit = sonic_send_packet;
203 dev->get_stats = sonic_get_stats;
204 dev->set_multicast_list = &sonic_multicast_list;
Finn Thainefcce832005-08-20 15:53:22 +1000205 dev->tx_timeout = sonic_tx_timeout;
206 dev->watchdog_timeo = TX_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207
208 /*
209 * clear tally counter
210 */
Finn Thainefcce832005-08-20 15:53:22 +1000211 SONIC_WRITE(SONIC_CRCT, 0xffff);
212 SONIC_WRITE(SONIC_FAET, 0xffff);
213 SONIC_WRITE(SONIC_MPT, 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214
215 return 0;
216}
217
Adrian Bunk44f74c02008-06-10 01:23:47 +0300218static int __init mac_onboard_sonic_ethernet_addr(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219{
Finn Thainefcce832005-08-20 15:53:22 +1000220 struct sonic_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
222 int i;
Joe Perches0795af52007-10-03 17:59:30 -0700223 DECLARE_MAC_BUF(mac);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
225 /* On NuBus boards we can sometimes look in the ROM resources.
226 No such luck for comm-slot/onboard. */
227 for(i = 0; i < 6; i++)
228 dev->dev_addr[i] = SONIC_READ_PROM(i);
229
230 /* Most of the time, the address is bit-reversed. The NetBSD
231 source has a rather long and detailed historical account of
232 why this is so. */
233 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
234 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000235 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
237 bit_reverse_addr(dev->dev_addr);
238 else
239 return 0;
240
241 /* If we still have what seems to be a bogus address, we'll
242 look in the CAM. The top entry should be ours. */
243 /* Danger! This only works if MacOS has already initialized
244 the card... */
245 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
246 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000247 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
249 {
250 unsigned short val;
251
252 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400253
Finn Thainefcce832005-08-20 15:53:22 +1000254 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
255 SONIC_WRITE(SONIC_CEP, 15);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
Finn Thainefcce832005-08-20 15:53:22 +1000257 val = SONIC_READ(SONIC_CAP2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 dev->dev_addr[5] = val >> 8;
259 dev->dev_addr[4] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000260 val = SONIC_READ(SONIC_CAP1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 dev->dev_addr[3] = val >> 8;
262 dev->dev_addr[2] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000263 val = SONIC_READ(SONIC_CAP0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 dev->dev_addr[1] = val >> 8;
265 dev->dev_addr[0] = val & 0xff;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400266
Joe Perches0795af52007-10-03 17:59:30 -0700267 printk(KERN_INFO "HW Address from CAM 15: %s\n",
268 print_mac(mac, dev->dev_addr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 } else return 0;
270
271 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
272 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000273 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
275 {
276 /*
277 * Still nonsense ... messed up someplace!
278 */
279 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
280 return -EIO;
281 } else return 0;
282}
283
Adrian Bunk44f74c02008-06-10 01:23:47 +0300284static int __init mac_onboard_sonic_probe(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285{
286 /* Bwahahaha */
287 static int once_is_more_than_enough;
Finn Thainefcce832005-08-20 15:53:22 +1000288 struct sonic_local* lp = netdev_priv(dev);
289 int sr;
290 int commslot = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400291
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 if (once_is_more_than_enough)
293 return -ENODEV;
294 once_is_more_than_enough = 1;
295
296 if (!MACH_IS_MAC)
297 return -ENODEV;
298
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 return -ENODEV;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400301
Finn Thainefcce832005-08-20 15:53:22 +1000302 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400303
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 /* Bogus probing, on the models which may or may not have
305 Ethernet (BTW, the Ethernet *is* always at the same
306 address, and nothing else lives there, at least if Apple's
307 documentation is to be believed) */
308 if (macintosh_config->ident == MAC_MODEL_Q630 ||
309 macintosh_config->ident == MAC_MODEL_P588 ||
Finn Thainefcce832005-08-20 15:53:22 +1000310 macintosh_config->ident == MAC_MODEL_P575 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 macintosh_config->ident == MAC_MODEL_C610) {
312 unsigned long flags;
313 int card_present;
314
315 local_irq_save(flags);
316 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
317 local_irq_restore(flags);
318
319 if (!card_present) {
320 printk("none.\n");
321 return -ENODEV;
322 }
Finn Thainefcce832005-08-20 15:53:22 +1000323 commslot = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 }
325
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400326 printk("yes\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327
Finn Thainefcce832005-08-20 15:53:22 +1000328 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
329 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 dev->base_addr = ONBOARD_SONIC_REGISTERS;
331 if (via_alt_mapping)
332 dev->irq = IRQ_AUTO_3;
333 else
334 dev->irq = IRQ_NUBUS_9;
335
336 if (!sonic_version_printed) {
337 printk(KERN_INFO "%s", version);
338 sonic_version_printed = 1;
339 }
340 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
Finn Thainefcce832005-08-20 15:53:22 +1000341 lp->device->bus_id, dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
343 /* The PowerBook's SONIC is 16 bit always. */
344 if (macintosh_config->ident == MAC_MODEL_PB520) {
Finn Thainefcce832005-08-20 15:53:22 +1000345 lp->reg_offset = 0;
346 lp->dma_bitmode = SONIC_BITMODE16;
347 sr = SONIC_READ(SONIC_SR);
348 } else if (commslot) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 /* Some of the comm-slot cards are 16 bit. But some
Finn Thainefcce832005-08-20 15:53:22 +1000350 of them are not. The 32-bit cards use offset 2 and
351 have known revisions, we try reading the revision
352 register at offset 2, if we don't get a known revision
353 we assume 16 bit at offset 0. */
354 lp->reg_offset = 2;
355 lp->dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
Finn Thainefcce832005-08-20 15:53:22 +1000357 sr = SONIC_READ(SONIC_SR);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400358 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
Finn Thainefcce832005-08-20 15:53:22 +1000359 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
360 lp->dma_bitmode = SONIC_BITMODE32;
361 else {
362 lp->dma_bitmode = SONIC_BITMODE16;
363 lp->reg_offset = 0;
364 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 }
Finn Thainefcce832005-08-20 15:53:22 +1000366 } else {
367 /* All onboard cards are at offset 2 with 32 bit DMA. */
368 lp->reg_offset = 2;
369 lp->dma_bitmode = SONIC_BITMODE32;
370 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 }
Finn Thainefcce832005-08-20 15:53:22 +1000372 printk(KERN_INFO
373 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
374 lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
Finn Thainefcce832005-08-20 15:53:22 +1000376#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
377 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
378 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
379#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000382 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
383
384 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
385 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
386 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
388 /* This *must* be written back to in order to restore the
Finn Thainefcce832005-08-20 15:53:22 +1000389 * extended programmable output bits, as it may not have been
390 * initialised since the hardware reset. */
391 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392
393 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000394 SONIC_WRITE(SONIC_IMR, 0);
395 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
397 /* Now look for the MAC address. */
398 if (mac_onboard_sonic_ethernet_addr(dev) != 0)
399 return -ENODEV;
400
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 /* Shared init code */
402 return macsonic_init(dev);
403}
404
Adrian Bunk44f74c02008-06-10 01:23:47 +0300405static int __init mac_nubus_sonic_ethernet_addr(struct net_device *dev,
406 unsigned long prom_addr,
407 int id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408{
409 int i;
410 for(i = 0; i < 6; i++)
411 dev->dev_addr[i] = SONIC_READ_PROM(i);
Finn Thainefcce832005-08-20 15:53:22 +1000412
413 /* Some of the addresses are bit-reversed */
414 if (id != MACSONIC_DAYNA)
415 bit_reverse_addr(dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416
417 return 0;
418}
419
Adrian Bunk44f74c02008-06-10 01:23:47 +0300420static int __init macsonic_ident(struct nubus_dev *ndev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421{
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400422 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
424 return MACSONIC_DAYNALINK;
425 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
426 ndev->dr_sw == NUBUS_DRSW_APPLE) {
427 /* There has to be a better way to do this... */
428 if (strstr(ndev->board->name, "DuoDock"))
429 return MACSONIC_DUODOCK;
430 else
431 return MACSONIC_APPLE;
432 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400433
Finn Thainefcce832005-08-20 15:53:22 +1000434 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
435 ndev->dr_sw == NUBUS_DRSW_DAYNA)
436 return MACSONIC_DAYNA;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400437
Finn Thainf8779582007-05-01 22:32:53 +0200438 if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
Finn Thainefcce832005-08-20 15:53:22 +1000439 ndev->dr_sw == 0) { /* huh? */
440 return MACSONIC_APPLE16;
441 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 return -1;
443}
444
Adrian Bunk44f74c02008-06-10 01:23:47 +0300445static int __init mac_nubus_sonic_probe(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446{
447 static int slots;
448 struct nubus_dev* ndev = NULL;
Finn Thainefcce832005-08-20 15:53:22 +1000449 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 unsigned long base_addr, prom_addr;
451 u16 sonic_dcr;
Finn Thainefcce832005-08-20 15:53:22 +1000452 int id = -1;
453 int reg_offset, dma_bitmode;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400454
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 /* Find the first SONIC that hasn't been initialized already */
456 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
457 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
458 {
459 /* Have we seen it already? */
460 if (slots & (1<<ndev->board->slot))
461 continue;
462 slots |= 1<<ndev->board->slot;
463
464 /* Is it one of ours? */
465 if ((id = macsonic_ident(ndev)) != -1)
466 break;
467 }
468
469 if (ndev == NULL)
470 return -ENODEV;
471
472 switch (id) {
473 case MACSONIC_DUODOCK:
474 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
475 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000476 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
477 SONIC_DCR_TFT0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 reg_offset = 2;
Finn Thainefcce832005-08-20 15:53:22 +1000479 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480 break;
481 case MACSONIC_APPLE:
482 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
483 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
484 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
485 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000486 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 break;
488 case MACSONIC_APPLE16:
489 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
490 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000491 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400492 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000494 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 break;
496 case MACSONIC_DAYNALINK:
497 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
498 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000499 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400500 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000502 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503 break;
504 case MACSONIC_DAYNA:
505 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
506 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
Finn Thainefcce832005-08-20 15:53:22 +1000507 sonic_dcr = SONIC_DCR_BMS |
508 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000510 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 break;
512 default:
513 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
514 return -ENODEV;
515 }
516
Finn Thainefcce832005-08-20 15:53:22 +1000517 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
518 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519 dev->base_addr = base_addr;
Finn Thainefcce832005-08-20 15:53:22 +1000520 lp->reg_offset = reg_offset;
521 lp->dma_bitmode = dma_bitmode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 dev->irq = SLOT2IRQ(ndev->board->slot);
523
524 if (!sonic_version_printed) {
525 printk(KERN_INFO "%s", version);
526 sonic_version_printed = 1;
527 }
528 printk(KERN_INFO "%s: %s in slot %X\n",
Finn Thainefcce832005-08-20 15:53:22 +1000529 lp->device->bus_id, ndev->board->name, ndev->board->slot);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
Finn Thainefcce832005-08-20 15:53:22 +1000531 lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532
Finn Thainefcce832005-08-20 15:53:22 +1000533#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
534 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
535 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
536#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537
538 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000539 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
540 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
541 /* This *must* be written back to in order to restore the
542 * extended programmable output bits, since it may not have been
543 * initialised since the hardware reset. */
544 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545
546 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000547 SONIC_WRITE(SONIC_IMR, 0);
548 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549
550 /* Now look for the MAC address. */
551 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
552 return -ENODEV;
553
Finn Thainefcce832005-08-20 15:53:22 +1000554 /* Shared init code */
555 return macsonic_init(dev);
556}
557
Finn Thaind74472f2007-05-01 22:33:02 +0200558static int __init mac_sonic_probe(struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000559{
560 struct net_device *dev;
561 struct sonic_local *lp;
562 int err;
Joe Perches0795af52007-10-03 17:59:30 -0700563 DECLARE_MAC_BUF(mac);
Finn Thainefcce832005-08-20 15:53:22 +1000564
565 dev = alloc_etherdev(sizeof(struct sonic_local));
566 if (!dev)
567 return -ENOMEM;
568
569 lp = netdev_priv(dev);
Finn Thaind74472f2007-05-01 22:33:02 +0200570 lp->device = &pdev->dev;
571 SET_NETDEV_DEV(dev, &pdev->dev);
Finn Thainefcce832005-08-20 15:53:22 +1000572
573 /* This will catch fatal stuff like -ENOMEM as well as success */
574 err = mac_onboard_sonic_probe(dev);
575 if (err == 0)
576 goto found;
577 if (err != -ENODEV)
578 goto out;
579 err = mac_nubus_sonic_probe(dev);
580 if (err)
581 goto out;
582found:
583 err = register_netdev(dev);
584 if (err)
585 goto out;
586
Joe Perches0795af52007-10-03 17:59:30 -0700587 printk("%s: MAC %s IRQ %d\n",
588 dev->name, print_mac(mac, dev->dev_addr), dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589
Finn Thainefcce832005-08-20 15:53:22 +1000590 return 0;
591
592out:
593 free_netdev(dev);
594
595 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596}
597
Finn Thainefcce832005-08-20 15:53:22 +1000598MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
599module_param(sonic_debug, int, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
601
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602#include "sonic.c"
603
Finn Thaind74472f2007-05-01 22:33:02 +0200604static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000605{
Finn Thaind74472f2007-05-01 22:33:02 +0200606 struct net_device *dev = platform_get_drvdata(pdev);
Finn Thainefcce832005-08-20 15:53:22 +1000607 struct sonic_local* lp = netdev_priv(dev);
608
Finn Thaind74472f2007-05-01 22:33:02 +0200609 unregister_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000610 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
611 lp->descriptors, lp->descriptors_laddr);
Finn Thaind74472f2007-05-01 22:33:02 +0200612 free_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000613
614 return 0;
615}
616
Russell King3ae5eae2005-11-09 22:32:44 +0000617static struct platform_driver mac_sonic_driver = {
Finn Thainefcce832005-08-20 15:53:22 +1000618 .probe = mac_sonic_probe,
619 .remove = __devexit_p(mac_sonic_device_remove),
Russell King3ae5eae2005-11-09 22:32:44 +0000620 .driver = {
621 .name = mac_sonic_string,
622 },
Finn Thainefcce832005-08-20 15:53:22 +1000623};
624
Finn Thainefcce832005-08-20 15:53:22 +1000625static int __init mac_sonic_init_module(void)
626{
Finn Thainefcce832005-08-20 15:53:22 +1000627 int err;
628
Russell King3ae5eae2005-11-09 22:32:44 +0000629 if ((err = platform_driver_register(&mac_sonic_driver))) {
Finn Thainefcce832005-08-20 15:53:22 +1000630 printk(KERN_ERR "Driver registration failed\n");
631 return err;
632 }
633
Russell King09c65182005-11-05 21:21:10 +0000634 mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
Finn Thaind74472f2007-05-01 22:33:02 +0200635 if (!mac_sonic_device)
Finn Thainefcce832005-08-20 15:53:22 +1000636 goto out_unregister;
Finn Thainefcce832005-08-20 15:53:22 +1000637
Russell King09c65182005-11-05 21:21:10 +0000638 if (platform_device_add(mac_sonic_device)) {
639 platform_device_put(mac_sonic_device);
Finn Thainefcce832005-08-20 15:53:22 +1000640 mac_sonic_device = NULL;
641 }
642
643 return 0;
644
645out_unregister:
Al Viroded5ca12005-12-04 02:28:40 -0500646 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000647
648 return -ENOMEM;
649}
650
651static void __exit mac_sonic_cleanup_module(void)
652{
Russell King3ae5eae2005-11-09 22:32:44 +0000653 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000654
655 if (mac_sonic_device) {
656 platform_device_unregister(mac_sonic_device);
657 mac_sonic_device = NULL;
658 }
659}
660
661module_init(mac_sonic_init_module);
662module_exit(mac_sonic_cleanup_module);