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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)
16 *
17 * This driver is based on work from Andreas Busse, but most of
18 * the code is rewritten.
19 *
20 * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de)
21 *
22 * A driver for the Mac onboard Sonic ethernet chip.
23 *
24 * 98/12/21 MSch: judged from tests on Q800, it's basically working,
25 * 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.
29 *
30 * 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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
53#include <asm/bootinfo.h>
54#include <asm/system.h>
55#include <asm/pgtable.h>
56#include <asm/io.h>
57#include <asm/hwtest.h>
58#include <asm/dma.h>
59#include <asm/macintosh.h>
60#include <asm/macints.h>
61#include <asm/mac_via.h>
62
Finn Thainefcce832005-08-20 15:53:22 +100063static char mac_sonic_string[] = "macsonic";
64static struct platform_device *mac_sonic_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -070065
66#include "sonic.h"
67
Finn Thainefcce832005-08-20 15:53:22 +100068/* These should basically be bus-size and endian independent (since
69 the SONIC is at least smart enough that it uses the same endianness
70 as the host, unlike certain less enlightened Macintosh NICs) */
71#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \
72 + lp->reg_offset))
73#define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \
74 + lp->reg_offset))
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
Finn Thainefcce832005-08-20 15:53:22 +100076/* use 0 for production, 1 for verification, >1 for debug */
77#ifdef SONIC_DEBUG
78static unsigned int sonic_debug = SONIC_DEBUG;
79#else
80static unsigned int sonic_debug = 1;
81#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
Linus Torvalds1da177e2005-04-16 15:20:36 -070083static int sonic_version_printed;
84
Linus Torvalds1da177e2005-04-16 15:20:36 -070085extern int mac_onboard_sonic_probe(struct net_device* dev);
86extern int mac_nubus_sonic_probe(struct net_device* dev);
87
88/* For onboard SONIC */
89#define ONBOARD_SONIC_REGISTERS 0x50F0A000
90#define ONBOARD_SONIC_PROM_BASE 0x50f08000
91
92enum macsonic_type {
93 MACSONIC_DUODOCK,
94 MACSONIC_APPLE,
95 MACSONIC_APPLE16,
96 MACSONIC_DAYNA,
97 MACSONIC_DAYNALINK
98};
99
100/* For the built-in SONIC in the Duo Dock */
101#define DUODOCK_SONIC_REGISTERS 0xe10000
102#define DUODOCK_SONIC_PROM_BASE 0xe12000
103
104/* For Apple-style NuBus SONIC */
105#define APPLE_SONIC_REGISTERS 0
106#define APPLE_SONIC_PROM_BASE 0x40000
107
108/* Daynalink LC SONIC */
109#define DAYNALINK_PROM_BASE 0x400000
110
111/* For Dayna-style NuBus SONIC (haven't seen one yet) */
112#define DAYNA_SONIC_REGISTERS 0x180000
113/* This is what OpenBSD says. However, this is definitely in NuBus
114 ROM space so we should be able to get it by walking the NuBus
115 resource directories */
116#define DAYNA_SONIC_MAC_ADDR 0xffe004
117
118#define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr)
119
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120/*
121 * For reversing the PROM address
122 */
123
124static unsigned char nibbletab[] = {0, 8, 4, 12, 2, 10, 6, 14,
125 1, 9, 5, 13, 3, 11, 7, 15};
126
127static inline void bit_reverse_addr(unsigned char addr[6])
128{
129 int i;
130
131 for(i = 0; i < 6; i++)
132 addr[i] = ((nibbletab[addr[i] & 0xf] << 4) |
133 nibbletab[(addr[i] >> 4) &0xf]);
134}
135
136int __init macsonic_init(struct net_device* dev)
137{
Finn Thainefcce832005-08-20 15:53:22 +1000138 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
140 /* Allocate the entire chunk of memory for the descriptors.
141 Note that this cannot cross a 64K boundary. */
Finn Thainefcce832005-08-20 15:53:22 +1000142 if ((lp->descriptors = dma_alloc_coherent(lp->device,
143 SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
144 &lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
145 printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 return -ENOMEM;
Finn Thainefcce832005-08-20 15:53:22 +1000147 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
149 /* Now set up the pointers to point to the appropriate places */
Finn Thainefcce832005-08-20 15:53:22 +1000150 lp->cda = lp->descriptors;
151 lp->tda = lp->cda + (SIZEOF_SONIC_CDA
152 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
Finn Thainefcce832005-08-20 15:53:22 +1000154 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
Finn Thainefcce832005-08-20 15:53:22 +1000156 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157
Finn Thainefcce832005-08-20 15:53:22 +1000158 lp->cda_laddr = lp->descriptors_laddr;
159 lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
160 * SONIC_BUS_SCALE(lp->dma_bitmode));
161 lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
162 * SONIC_BUS_SCALE(lp->dma_bitmode));
163 lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
164 * SONIC_BUS_SCALE(lp->dma_bitmode));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
166 dev->open = sonic_open;
167 dev->stop = sonic_close;
168 dev->hard_start_xmit = sonic_send_packet;
169 dev->get_stats = sonic_get_stats;
170 dev->set_multicast_list = &sonic_multicast_list;
Finn Thainefcce832005-08-20 15:53:22 +1000171 dev->tx_timeout = sonic_tx_timeout;
172 dev->watchdog_timeo = TX_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174 /*
175 * clear tally counter
176 */
Finn Thainefcce832005-08-20 15:53:22 +1000177 SONIC_WRITE(SONIC_CRCT, 0xffff);
178 SONIC_WRITE(SONIC_FAET, 0xffff);
179 SONIC_WRITE(SONIC_MPT, 0xffff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180
181 return 0;
182}
183
184int __init mac_onboard_sonic_ethernet_addr(struct net_device* dev)
185{
Finn Thainefcce832005-08-20 15:53:22 +1000186 struct sonic_local *lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 const int prom_addr = ONBOARD_SONIC_PROM_BASE;
188 int i;
189
190 /* On NuBus boards we can sometimes look in the ROM resources.
191 No such luck for comm-slot/onboard. */
192 for(i = 0; i < 6; i++)
193 dev->dev_addr[i] = SONIC_READ_PROM(i);
194
195 /* Most of the time, the address is bit-reversed. The NetBSD
196 source has a rather long and detailed historical account of
197 why this is so. */
198 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
199 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000200 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
202 bit_reverse_addr(dev->dev_addr);
203 else
204 return 0;
205
206 /* If we still have what seems to be a bogus address, we'll
207 look in the CAM. The top entry should be ours. */
208 /* Danger! This only works if MacOS has already initialized
209 the card... */
210 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
211 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000212 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
214 {
215 unsigned short val;
216
217 printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
218
Finn Thainefcce832005-08-20 15:53:22 +1000219 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
220 SONIC_WRITE(SONIC_CEP, 15);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221
Finn Thainefcce832005-08-20 15:53:22 +1000222 val = SONIC_READ(SONIC_CAP2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 dev->dev_addr[5] = val >> 8;
224 dev->dev_addr[4] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000225 val = SONIC_READ(SONIC_CAP1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 dev->dev_addr[3] = val >> 8;
227 dev->dev_addr[2] = val & 0xff;
Finn Thainefcce832005-08-20 15:53:22 +1000228 val = SONIC_READ(SONIC_CAP0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 dev->dev_addr[1] = val >> 8;
230 dev->dev_addr[0] = val & 0xff;
231
232 printk(KERN_INFO "HW Address from CAM 15: ");
233 for (i = 0; i < 6; i++) {
234 printk("%2.2x", dev->dev_addr[i]);
235 if (i < 5)
236 printk(":");
237 }
238 printk("\n");
239 } else return 0;
240
241 if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
242 memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
Finn Thainefcce832005-08-20 15:53:22 +1000243 memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 memcmp(dev->dev_addr, "\x00\x05\x02", 3))
245 {
246 /*
247 * Still nonsense ... messed up someplace!
248 */
249 printk(KERN_ERR "macsonic: ERROR (INVALID MAC)\n");
250 return -EIO;
251 } else return 0;
252}
253
254int __init mac_onboard_sonic_probe(struct net_device* dev)
255{
256 /* Bwahahaha */
257 static int once_is_more_than_enough;
Finn Thainefcce832005-08-20 15:53:22 +1000258 struct sonic_local* lp = netdev_priv(dev);
259 int sr;
260 int commslot = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261
262 if (once_is_more_than_enough)
263 return -ENODEV;
264 once_is_more_than_enough = 1;
265
266 if (!MACH_IS_MAC)
267 return -ENODEV;
268
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 if (macintosh_config->ether_type != MAC_ETHER_SONIC)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 return -ENODEV;
Finn Thainefcce832005-08-20 15:53:22 +1000271
272 printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
273
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 /* Bogus probing, on the models which may or may not have
275 Ethernet (BTW, the Ethernet *is* always at the same
276 address, and nothing else lives there, at least if Apple's
277 documentation is to be believed) */
278 if (macintosh_config->ident == MAC_MODEL_Q630 ||
279 macintosh_config->ident == MAC_MODEL_P588 ||
Finn Thainefcce832005-08-20 15:53:22 +1000280 macintosh_config->ident == MAC_MODEL_P575 ||
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281 macintosh_config->ident == MAC_MODEL_C610) {
282 unsigned long flags;
283 int card_present;
284
285 local_irq_save(flags);
286 card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
287 local_irq_restore(flags);
288
289 if (!card_present) {
290 printk("none.\n");
291 return -ENODEV;
292 }
Finn Thainefcce832005-08-20 15:53:22 +1000293 commslot = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 }
295
296 printk("yes\n");
297
Finn Thainefcce832005-08-20 15:53:22 +1000298 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
299 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 dev->base_addr = ONBOARD_SONIC_REGISTERS;
301 if (via_alt_mapping)
302 dev->irq = IRQ_AUTO_3;
303 else
304 dev->irq = IRQ_NUBUS_9;
305
306 if (!sonic_version_printed) {
307 printk(KERN_INFO "%s", version);
308 sonic_version_printed = 1;
309 }
310 printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
Finn Thainefcce832005-08-20 15:53:22 +1000311 lp->device->bus_id, dev->base_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
313 /* The PowerBook's SONIC is 16 bit always. */
314 if (macintosh_config->ident == MAC_MODEL_PB520) {
Finn Thainefcce832005-08-20 15:53:22 +1000315 lp->reg_offset = 0;
316 lp->dma_bitmode = SONIC_BITMODE16;
317 sr = SONIC_READ(SONIC_SR);
318 } else if (commslot) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 /* Some of the comm-slot cards are 16 bit. But some
Finn Thainefcce832005-08-20 15:53:22 +1000320 of them are not. The 32-bit cards use offset 2 and
321 have known revisions, we try reading the revision
322 register at offset 2, if we don't get a known revision
323 we assume 16 bit at offset 0. */
324 lp->reg_offset = 2;
325 lp->dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
Finn Thainefcce832005-08-20 15:53:22 +1000327 sr = SONIC_READ(SONIC_SR);
328 if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
329 /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
330 lp->dma_bitmode = SONIC_BITMODE32;
331 else {
332 lp->dma_bitmode = SONIC_BITMODE16;
333 lp->reg_offset = 0;
334 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 }
Finn Thainefcce832005-08-20 15:53:22 +1000336 } else {
337 /* All onboard cards are at offset 2 with 32 bit DMA. */
338 lp->reg_offset = 2;
339 lp->dma_bitmode = SONIC_BITMODE32;
340 sr = SONIC_READ(SONIC_SR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 }
Finn Thainefcce832005-08-20 15:53:22 +1000342 printk(KERN_INFO
343 "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
344 lp->device->bus_id, sr, lp->dma_bitmode?32:16, lp->reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Finn Thainefcce832005-08-20 15:53:22 +1000346#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
347 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
348 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
349#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000352 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
353
354 SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
355 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
356 (lp->dma_bitmode ? SONIC_DCR_DW : 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
358 /* This *must* be written back to in order to restore the
Finn Thainefcce832005-08-20 15:53:22 +1000359 * extended programmable output bits, as it may not have been
360 * initialised since the hardware reset. */
361 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
363 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000364 SONIC_WRITE(SONIC_IMR, 0);
365 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366
367 /* Now look for the MAC address. */
368 if (mac_onboard_sonic_ethernet_addr(dev) != 0)
369 return -ENODEV;
370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 /* Shared init code */
372 return macsonic_init(dev);
373}
374
375int __init mac_nubus_sonic_ethernet_addr(struct net_device* dev,
376 unsigned long prom_addr,
377 int id)
378{
379 int i;
380 for(i = 0; i < 6; i++)
381 dev->dev_addr[i] = SONIC_READ_PROM(i);
Finn Thainefcce832005-08-20 15:53:22 +1000382
383 /* Some of the addresses are bit-reversed */
384 if (id != MACSONIC_DAYNA)
385 bit_reverse_addr(dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
387 return 0;
388}
389
390int __init macsonic_ident(struct nubus_dev* ndev)
391{
392 if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC &&
393 ndev->dr_sw == NUBUS_DRSW_SONIC_LC)
394 return MACSONIC_DAYNALINK;
395 if (ndev->dr_hw == NUBUS_DRHW_SONIC &&
396 ndev->dr_sw == NUBUS_DRSW_APPLE) {
397 /* There has to be a better way to do this... */
398 if (strstr(ndev->board->name, "DuoDock"))
399 return MACSONIC_DUODOCK;
400 else
401 return MACSONIC_APPLE;
402 }
Finn Thainefcce832005-08-20 15:53:22 +1000403
404 if (ndev->dr_hw == NUBUS_DRHW_SMC9194 &&
405 ndev->dr_sw == NUBUS_DRSW_DAYNA)
406 return MACSONIC_DAYNA;
407
408 if (ndev->dr_hw == NUBUS_DRHW_SONIC_LC &&
409 ndev->dr_sw == 0) { /* huh? */
410 return MACSONIC_APPLE16;
411 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 return -1;
413}
414
415int __init mac_nubus_sonic_probe(struct net_device* dev)
416{
417 static int slots;
418 struct nubus_dev* ndev = NULL;
Finn Thainefcce832005-08-20 15:53:22 +1000419 struct sonic_local* lp = netdev_priv(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 unsigned long base_addr, prom_addr;
421 u16 sonic_dcr;
Finn Thainefcce832005-08-20 15:53:22 +1000422 int id = -1;
423 int reg_offset, dma_bitmode;
424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 /* Find the first SONIC that hasn't been initialized already */
426 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
427 NUBUS_TYPE_ETHERNET, ndev)) != NULL)
428 {
429 /* Have we seen it already? */
430 if (slots & (1<<ndev->board->slot))
431 continue;
432 slots |= 1<<ndev->board->slot;
433
434 /* Is it one of ours? */
435 if ((id = macsonic_ident(ndev)) != -1)
436 break;
437 }
438
439 if (ndev == NULL)
440 return -ENODEV;
441
442 switch (id) {
443 case MACSONIC_DUODOCK:
444 base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
445 prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000446 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
447 SONIC_DCR_TFT0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 reg_offset = 2;
Finn Thainefcce832005-08-20 15:53:22 +1000449 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 break;
451 case MACSONIC_APPLE:
452 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
453 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
454 sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
455 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000456 dma_bitmode = SONIC_BITMODE32;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 break;
458 case MACSONIC_APPLE16:
459 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
460 prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000461 sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
462 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000464 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 break;
466 case MACSONIC_DAYNALINK:
467 base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
468 prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
Finn Thainefcce832005-08-20 15:53:22 +1000469 sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
470 SONIC_DCR_PO1 | SONIC_DCR_BMS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000472 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 break;
474 case MACSONIC_DAYNA:
475 base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
476 prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
Finn Thainefcce832005-08-20 15:53:22 +1000477 sonic_dcr = SONIC_DCR_BMS |
478 SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 reg_offset = 0;
Finn Thainefcce832005-08-20 15:53:22 +1000480 dma_bitmode = SONIC_BITMODE16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 break;
482 default:
483 printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
484 return -ENODEV;
485 }
486
Finn Thainefcce832005-08-20 15:53:22 +1000487 /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
488 * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 dev->base_addr = base_addr;
Finn Thainefcce832005-08-20 15:53:22 +1000490 lp->reg_offset = reg_offset;
491 lp->dma_bitmode = dma_bitmode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 dev->irq = SLOT2IRQ(ndev->board->slot);
493
494 if (!sonic_version_printed) {
495 printk(KERN_INFO "%s", version);
496 sonic_version_printed = 1;
497 }
498 printk(KERN_INFO "%s: %s in slot %X\n",
Finn Thainefcce832005-08-20 15:53:22 +1000499 lp->device->bus_id, ndev->board->name, ndev->board->slot);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
Finn Thainefcce832005-08-20 15:53:22 +1000501 lp->device->bus_id, SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
Finn Thainefcce832005-08-20 15:53:22 +1000503#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
504 printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", lp->device->bus_id,
505 SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
506#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507
508 /* Software reset, then initialize control registers. */
Finn Thainefcce832005-08-20 15:53:22 +1000509 SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
510 SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
511 /* This *must* be written back to in order to restore the
512 * extended programmable output bits, since it may not have been
513 * initialised since the hardware reset. */
514 SONIC_WRITE(SONIC_DCR2, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515
516 /* Clear *and* disable interrupts to be on the safe side */
Finn Thainefcce832005-08-20 15:53:22 +1000517 SONIC_WRITE(SONIC_IMR, 0);
518 SONIC_WRITE(SONIC_ISR, 0x7fff);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
520 /* Now look for the MAC address. */
521 if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
522 return -ENODEV;
523
Finn Thainefcce832005-08-20 15:53:22 +1000524 /* Shared init code */
525 return macsonic_init(dev);
526}
527
Russell King3ae5eae2005-11-09 22:32:44 +0000528static int __init mac_sonic_probe(struct platform_device *device)
Finn Thainefcce832005-08-20 15:53:22 +1000529{
530 struct net_device *dev;
531 struct sonic_local *lp;
532 int err;
533 int i;
534
535 dev = alloc_etherdev(sizeof(struct sonic_local));
536 if (!dev)
537 return -ENOMEM;
538
539 lp = netdev_priv(dev);
Russell King3ae5eae2005-11-09 22:32:44 +0000540 lp->device = &device->dev;
541 SET_NETDEV_DEV(dev, &device->dev);
Finn Thainefcce832005-08-20 15:53:22 +1000542 SET_MODULE_OWNER(dev);
543
544 /* This will catch fatal stuff like -ENOMEM as well as success */
545 err = mac_onboard_sonic_probe(dev);
546 if (err == 0)
547 goto found;
548 if (err != -ENODEV)
549 goto out;
550 err = mac_nubus_sonic_probe(dev);
551 if (err)
552 goto out;
553found:
554 err = register_netdev(dev);
555 if (err)
556 goto out;
557
558 printk("%s: MAC ", dev->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559 for (i = 0; i < 6; i++) {
560 printk("%2.2x", dev->dev_addr[i]);
561 if (i < 5)
562 printk(":");
563 }
564 printk(" IRQ %d\n", dev->irq);
565
Finn Thainefcce832005-08-20 15:53:22 +1000566 return 0;
567
568out:
569 free_netdev(dev);
570
571 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572}
573
Finn Thainefcce832005-08-20 15:53:22 +1000574MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
575module_param(sonic_debug, int, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
577
Finn Thainefcce832005-08-20 15:53:22 +1000578#define SONIC_IRQ_FLAG IRQ_FLG_FAST
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
580#include "sonic.c"
581
Russell King3ae5eae2005-11-09 22:32:44 +0000582static int __devexit mac_sonic_device_remove (struct platform_device *device)
Finn Thainefcce832005-08-20 15:53:22 +1000583{
Russell King3ae5eae2005-11-09 22:32:44 +0000584 struct net_device *dev = platform_get_drvdata(device);
Finn Thainefcce832005-08-20 15:53:22 +1000585 struct sonic_local* lp = netdev_priv(dev);
586
587 unregister_netdev (dev);
588 dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
589 lp->descriptors, lp->descriptors_laddr);
590 free_netdev (dev);
591
592 return 0;
593}
594
Russell King3ae5eae2005-11-09 22:32:44 +0000595static struct platform_driver mac_sonic_driver = {
Finn Thainefcce832005-08-20 15:53:22 +1000596 .probe = mac_sonic_probe,
597 .remove = __devexit_p(mac_sonic_device_remove),
Russell King3ae5eae2005-11-09 22:32:44 +0000598 .driver = {
599 .name = mac_sonic_string,
600 },
Finn Thainefcce832005-08-20 15:53:22 +1000601};
602
Finn Thainefcce832005-08-20 15:53:22 +1000603static int __init mac_sonic_init_module(void)
604{
Finn Thainefcce832005-08-20 15:53:22 +1000605 int err;
606
Russell King3ae5eae2005-11-09 22:32:44 +0000607 if ((err = platform_driver_register(&mac_sonic_driver))) {
Finn Thainefcce832005-08-20 15:53:22 +1000608 printk(KERN_ERR "Driver registration failed\n");
609 return err;
610 }
611
Russell King09c65182005-11-05 21:21:10 +0000612 mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
613 if (!mac_sonic_device) {
Finn Thainefcce832005-08-20 15:53:22 +1000614 goto out_unregister;
615 }
616
Russell King09c65182005-11-05 21:21:10 +0000617 if (platform_device_add(mac_sonic_device)) {
618 platform_device_put(mac_sonic_device);
Finn Thainefcce832005-08-20 15:53:22 +1000619 mac_sonic_device = NULL;
620 }
621
622 return 0;
623
624out_unregister:
Al Viroded5ca12005-12-04 02:28:40 -0500625 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000626
627 return -ENOMEM;
628}
629
630static void __exit mac_sonic_cleanup_module(void)
631{
Russell King3ae5eae2005-11-09 22:32:44 +0000632 platform_driver_unregister(&mac_sonic_driver);
Finn Thainefcce832005-08-20 15:53:22 +1000633
634 if (mac_sonic_device) {
635 platform_device_unregister(mac_sonic_device);
636 mac_sonic_device = NULL;
637 }
638}
639
640module_init(mac_sonic_init_module);
641module_exit(mac_sonic_cleanup_module);