blob: 205bb05c25d6f41a2eec0abfdb958348179d0e93 [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;
223
224 /* On NuBus boards we can sometimes look in the ROM resources.
225 No such luck for comm-slot/onboard. */
226 for(i = 0; i < 6; i++)
227 dev->dev_addr[i] = SONIC_READ_PROM(i);
228
229 /* Most of the time, the address is bit-reversed. The NetBSD
230 source has a rather long and detailed historical account of
231 why this is so. */
232 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
233 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000234 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
236 bit_reverse_addr(dev->dev_addr);
237 else
238 return 0;
239
240 /* If we still have what seems to be a bogus address, we'll
241 look in the CAM. The top entry should be ours. */
242 /* Danger! This only works if MacOS has already initialized
243 the card... */
244 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
245 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000246 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
248 {
249 unsigned short val;
250
251 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400252
Finn Thainefcce832005-08-20 15:53:22 +1000253 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
254 SONIC_WRITE(SONIC_CEP, 15);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
Finn Thainefcce832005-08-20 15:53:22 +1000256 val = SONIC_READ(SONIC_CAP2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 dev->dev_addr[5] = val >> 8;
258 dev->dev_addr[4] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000259 val = SONIC_READ(SONIC_CAP1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 dev->dev_addr[3] = val >> 8;
261 dev->dev_addr[2] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000262 val = SONIC_READ(SONIC_CAP0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 dev->dev_addr[1] = val >> 8;
264 dev->dev_addr[0] = val & 0xff;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400265
Johannes Berge1749612008-10-27 15:59:26 -0700266 printk(KERN_INFO "HW Address from CAM 15: %pM\n",
267 dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 } else return 0;
269
270 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
271 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000272 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
274 {
275 /*
276 * Still nonsense ... messed up someplace!
277 */
278 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
279 return -EIO;
280 } else return 0;
281}
282
Adrian Bunk44f74c02008-06-10 01:23:47 +0300283static int __init mac_onboard_sonic_probe(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284{
285 /* Bwahahaha */
286 static int once_is_more_than_enough;
Finn Thainefcce832005-08-20 15:53:22 +1000287 struct sonic_local* lp = netdev_priv(dev);
288 int sr;
289 int commslot = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400290
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 if (once_is_more_than_enough)
292 return -ENODEV;
293 once_is_more_than_enough = 1;
294
295 if (!MACH_IS_MAC)
296 return -ENODEV;
297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 return -ENODEV;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400300
Finn Thainefcce832005-08-20 15:53:22 +1000301 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400302
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 /* Bogus probing, on the models which may or may not have
304 Ethernet (BTW, the Ethernet *is* always at the same
305 address, and nothing else lives there, at least if Apple's
306 documentation is to be believed) */
307 if (macintosh_config->ident == MAC_MODEL_Q630 ||
308 macintosh_config->ident == MAC_MODEL_P588 ||
Finn Thainefcce832005-08-20 15:53:22 +1000309 macintosh_config->ident == MAC_MODEL_P575 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 macintosh_config->ident == MAC_MODEL_C610) {
311 unsigned long flags;
312 int card_present;
313
314 local_irq_save(flags);
315 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
316 local_irq_restore(flags);
317
318 if (!card_present) {
319 printk("none.\n");
320 return -ENODEV;
321 }
Finn Thainefcce832005-08-20 15:53:22 +1000322 commslot = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 }
324
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400325 printk("yes\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
Finn Thainefcce832005-08-20 15:53:22 +1000327 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
328 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 dev->base_addr = ONBOARD_SONIC_REGISTERS;
330 if (via_alt_mapping)
331 dev->irq = IRQ_AUTO_3;
332 else
333 dev->irq = IRQ_NUBUS_9;
334
335 if (!sonic_version_printed) {
336 printk(KERN_INFO "%s", version);
337 sonic_version_printed = 1;
338 }
339 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
Finn Thainefcce832005-08-20 15:53:22 +1000340 lp->device->bus_id, dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
342 /* The PowerBook's SONIC is 16 bit always. */
343 if (macintosh_config->ident == MAC_MODEL_PB520) {
Finn Thainefcce832005-08-20 15:53:22 +1000344 lp->reg_offset = 0;
345 lp->dma_bitmode = SONIC_BITMODE16;
346 sr = SONIC_READ(SONIC_SR);
347 } else if (commslot) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 /* Some of the comm-slot cards are 16 bit. But some
Finn Thainefcce832005-08-20 15:53:22 +1000349 of them are not. The 32-bit cards use offset 2 and
350 have known revisions, we try reading the revision
351 register at offset 2, if we don't get a known revision
352 we assume 16 bit at offset 0. */
353 lp->reg_offset = 2;
354 lp->dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
Finn Thainefcce832005-08-20 15:53:22 +1000356 sr = SONIC_READ(SONIC_SR);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400357 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
Finn Thainefcce832005-08-20 15:53:22 +1000358 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
359 lp->dma_bitmode = SONIC_BITMODE32;
360 else {
361 lp->dma_bitmode = SONIC_BITMODE16;
362 lp->reg_offset = 0;
363 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 }
Finn Thainefcce832005-08-20 15:53:22 +1000365 } else {
366 /* All onboard cards are at offset 2 with 32 bit DMA. */
367 lp->reg_offset = 2;
368 lp->dma_bitmode = SONIC_BITMODE32;
369 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 }
Finn Thainefcce832005-08-20 15:53:22 +1000371 printk(KERN_INFO
372 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
373 lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374
Finn Thainefcce832005-08-20 15:53:22 +1000375#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
376 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
377 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
378#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000381 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
382
383 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
384 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
385 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
387 /* This *must* be written back to in order to restore the
Finn Thainefcce832005-08-20 15:53:22 +1000388 * extended programmable output bits, as it may not have been
389 * initialised since the hardware reset. */
390 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
392 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000393 SONIC_WRITE(SONIC_IMR, 0);
394 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395
396 /* Now look for the MAC address. */
397 if (mac_onboard_sonic_ethernet_addr(dev) != 0)
398 return -ENODEV;
399
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 /* Shared init code */
401 return macsonic_init(dev);
402}
403
Adrian Bunk44f74c02008-06-10 01:23:47 +0300404static int __init mac_nubus_sonic_ethernet_addr(struct net_device *dev,
405 unsigned long prom_addr,
406 int id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407{
408 int i;
409 for(i = 0; i < 6; i++)
410 dev->dev_addr[i] = SONIC_READ_PROM(i);
Finn Thainefcce832005-08-20 15:53:22 +1000411
412 /* Some of the addresses are bit-reversed */
413 if (id != MACSONIC_DAYNA)
414 bit_reverse_addr(dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415
416 return 0;
417}
418
Adrian Bunk44f74c02008-06-10 01:23:47 +0300419static int __init macsonic_ident(struct nubus_dev *ndev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420{
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400421 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
423 return MACSONIC_DAYNALINK;
424 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
425 ndev->dr_sw == NUBUS_DRSW_APPLE) {
426 /* There has to be a better way to do this... */
427 if (strstr(ndev->board->name, "DuoDock"))
428 return MACSONIC_DUODOCK;
429 else
430 return MACSONIC_APPLE;
431 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400432
Finn Thainefcce832005-08-20 15:53:22 +1000433 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
434 ndev->dr_sw == NUBUS_DRSW_DAYNA)
435 return MACSONIC_DAYNA;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400436
Finn Thainf8779582007-05-01 22:32:53 +0200437 if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
Finn Thainefcce832005-08-20 15:53:22 +1000438 ndev->dr_sw == 0) { /* huh? */
439 return MACSONIC_APPLE16;
440 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 return -1;
442}
443
Adrian Bunk44f74c02008-06-10 01:23:47 +0300444static int __init mac_nubus_sonic_probe(struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445{
446 static int slots;
447 struct nubus_dev* ndev = NULL;
Finn Thainefcce832005-08-20 15:53:22 +1000448 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 unsigned long base_addr, prom_addr;
450 u16 sonic_dcr;
Finn Thainefcce832005-08-20 15:53:22 +1000451 int id = -1;
452 int reg_offset, dma_bitmode;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400453
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 /* Find the first SONIC that hasn't been initialized already */
455 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
456 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
457 {
458 /* Have we seen it already? */
459 if (slots & (1<<ndev->board->slot))
460 continue;
461 slots |= 1<<ndev->board->slot;
462
463 /* Is it one of ours? */
464 if ((id = macsonic_ident(ndev)) != -1)
465 break;
466 }
467
468 if (ndev == NULL)
469 return -ENODEV;
470
471 switch (id) {
472 case MACSONIC_DUODOCK:
473 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
474 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000475 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
476 SONIC_DCR_TFT0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 reg_offset = 2;
Finn Thainefcce832005-08-20 15:53:22 +1000478 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 break;
480 case MACSONIC_APPLE:
481 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
482 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
483 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
484 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000485 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 break;
487 case MACSONIC_APPLE16:
488 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
489 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000490 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400491 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000493 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 break;
495 case MACSONIC_DAYNALINK:
496 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
497 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000498 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400499 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000501 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 break;
503 case MACSONIC_DAYNA:
504 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
505 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
Finn Thainefcce832005-08-20 15:53:22 +1000506 sonic_dcr = SONIC_DCR_BMS |
507 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000509 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510 break;
511 default:
512 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
513 return -ENODEV;
514 }
515
Finn Thainefcce832005-08-20 15:53:22 +1000516 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
517 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 dev->base_addr = base_addr;
Finn Thainefcce832005-08-20 15:53:22 +1000519 lp->reg_offset = reg_offset;
520 lp->dma_bitmode = dma_bitmode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 dev->irq = SLOT2IRQ(ndev->board->slot);
522
523 if (!sonic_version_printed) {
524 printk(KERN_INFO "%s", version);
525 sonic_version_printed = 1;
526 }
527 printk(KERN_INFO "%s: %s in slot %X\n",
Finn Thainefcce832005-08-20 15:53:22 +1000528 lp->device->bus_id, ndev->board->name, ndev->board->slot);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
Finn Thainefcce832005-08-20 15:53:22 +1000530 lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531
Finn Thainefcce832005-08-20 15:53:22 +1000532#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
533 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
534 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
535#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536
537 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000538 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
539 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
540 /* This *must* be written back to in order to restore the
541 * extended programmable output bits, since it may not have been
542 * initialised since the hardware reset. */
543 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
545 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000546 SONIC_WRITE(SONIC_IMR, 0);
547 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548
549 /* Now look for the MAC address. */
550 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
551 return -ENODEV;
552
Finn Thainefcce832005-08-20 15:53:22 +1000553 /* Shared init code */
554 return macsonic_init(dev);
555}
556
Finn Thaind74472f2007-05-01 22:33:02 +0200557static int __init mac_sonic_probe(struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000558{
559 struct net_device *dev;
560 struct sonic_local *lp;
561 int err;
Finn Thainefcce832005-08-20 15:53:22 +1000562
563 dev = alloc_etherdev(sizeof(struct sonic_local));
564 if (!dev)
565 return -ENOMEM;
566
567 lp = netdev_priv(dev);
Finn Thaind74472f2007-05-01 22:33:02 +0200568 lp->device = &pdev->dev;
569 SET_NETDEV_DEV(dev, &pdev->dev);
Finn Thainefcce832005-08-20 15:53:22 +1000570
571 /* This will catch fatal stuff like -ENOMEM as well as success */
572 err = mac_onboard_sonic_probe(dev);
573 if (err == 0)
574 goto found;
575 if (err != -ENODEV)
576 goto out;
577 err = mac_nubus_sonic_probe(dev);
578 if (err)
579 goto out;
580found:
581 err = register_netdev(dev);
582 if (err)
583 goto out;
584
Johannes Berge1749612008-10-27 15:59:26 -0700585 printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586
Finn Thainefcce832005-08-20 15:53:22 +1000587 return 0;
588
589out:
590 free_netdev(dev);
591
592 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593}
594
Finn Thainefcce832005-08-20 15:53:22 +1000595MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
596module_param(sonic_debug, int, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
598
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599#include "sonic.c"
600
Finn Thaind74472f2007-05-01 22:33:02 +0200601static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
Finn Thainefcce832005-08-20 15:53:22 +1000602{
Finn Thaind74472f2007-05-01 22:33:02 +0200603 struct net_device *dev = platform_get_drvdata(pdev);
Finn Thainefcce832005-08-20 15:53:22 +1000604 struct sonic_local* lp = netdev_priv(dev);
605
Finn Thaind74472f2007-05-01 22:33:02 +0200606 unregister_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000607 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
608 lp->descriptors, lp->descriptors_laddr);
Finn Thaind74472f2007-05-01 22:33:02 +0200609 free_netdev(dev);
Finn Thainefcce832005-08-20 15:53:22 +1000610
611 return 0;
612}
613
Russell King3ae5eae2005-11-09 22:32:44 +0000614static struct platform_driver mac_sonic_driver = {
Finn Thainefcce832005-08-20 15:53:22 +1000615 .probe = mac_sonic_probe,
616 .remove = __devexit_p(mac_sonic_device_remove),
Russell King3ae5eae2005-11-09 22:32:44 +0000617 .driver = {
618 .name = mac_sonic_string,
619 },
Finn Thainefcce832005-08-20 15:53:22 +1000620};
621
Finn Thainefcce832005-08-20 15:53:22 +1000622static int __init mac_sonic_init_module(void)
623{
Finn Thainefcce832005-08-20 15:53:22 +1000624 int err;
625
Russell King3ae5eae2005-11-09 22:32:44 +0000626 if ((err = platform_driver_register(&mac_sonic_driver))) {
Finn Thainefcce832005-08-20 15:53:22 +1000627 printk(KERN_ERR "Driver registration failed\n");
628 return err;
629 }
630
Russell King09c65182005-11-05 21:21:10 +0000631 mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
Finn Thaind74472f2007-05-01 22:33:02 +0200632 if (!mac_sonic_device)
Finn Thainefcce832005-08-20 15:53:22 +1000633 goto out_unregister;
Finn Thainefcce832005-08-20 15:53:22 +1000634
Russell King09c65182005-11-05 21:21:10 +0000635 if (platform_device_add(mac_sonic_device)) {
636 platform_device_put(mac_sonic_device);
Finn Thainefcce832005-08-20 15:53:22 +1000637 mac_sonic_device = NULL;
638 }
639
640 return 0;
641
642out_unregister:
Al Viroded5ca12005-12-04 02:28:40 -0500643 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000644
645 return -ENOMEM;
646}
647
648static void __exit mac_sonic_cleanup_module(void)
649{
Russell King3ae5eae2005-11-09 22:32:44 +0000650 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000651
652 if (mac_sonic_device) {
653 platform_device_unregister(mac_sonic_device);
654 mac_sonic_device = NULL;
655 }
656}
657
658module_init(mac_sonic_init_module);
659module_exit(mac_sonic_cleanup_module);