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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * macsonic.c | |
4 | * | |
efcce839 FT |
5 | * (C) 2005 Finn Thain |
6 | * | |
7 | * Converted to DMA API, converted to unified driver model, made it work as | |
8 | * a module again, and from the mac68k project, introduced more 32-bit cards | |
9 | * and dhd's support for 16-bit cards. | |
10 | * | |
1da177e4 LT |
11 | * (C) 1998 Alan Cox |
12 | * | |
13 | * Debugging Andreas Ehliar, Michael Schmitz | |
14 | * | |
15 | * Based on code | |
16 | * (C) 1996 by Thomas Bogendoerfer (tsbogend@bigbug.franken.de) | |
6aa20a22 | 17 | * |
1da177e4 LT |
18 | * This driver is based on work from Andreas Busse, but most of |
19 | * the code is rewritten. | |
6aa20a22 | 20 | * |
1da177e4 LT |
21 | * (C) 1995 by Andreas Busse (andy@waldorf-gmbh.de) |
22 | * | |
23 | * A driver for the Mac onboard Sonic ethernet chip. | |
24 | * | |
6aa20a22 | 25 | * 98/12/21 MSch: judged from tests on Q800, it's basically working, |
1da177e4 LT |
26 | * but eating up both receive and transmit resources |
27 | * and duplicating packets. Needs more testing. | |
28 | * | |
29 | * 99/01/03 MSch: upgraded to version 0.92 of the core driver, fixed. | |
6aa20a22 | 30 | * |
1da177e4 LT |
31 | * 00/10/31 sammy@oh.verio.com: Updated driver for 2.4 kernels, fixed problems |
32 | * on centris. | |
33 | */ | |
34 | ||
35 | #include <linux/kernel.h> | |
efcce839 | 36 | #include <linux/module.h> |
1da177e4 | 37 | #include <linux/types.h> |
1da177e4 | 38 | #include <linux/fcntl.h> |
5a0e3ad6 | 39 | #include <linux/gfp.h> |
1da177e4 | 40 | #include <linux/interrupt.h> |
1da177e4 LT |
41 | #include <linux/ioport.h> |
42 | #include <linux/in.h> | |
1da177e4 LT |
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> | |
d052d1be | 50 | #include <linux/platform_device.h> |
efcce839 | 51 | #include <linux/dma-mapping.h> |
427a57a7 | 52 | #include <linux/bitrev.h> |
5a0e3ad6 | 53 | #include <linux/slab.h> |
1da177e4 | 54 | |
1da177e4 LT |
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 | ||
efcce839 | 63 | static char mac_sonic_string[] = "macsonic"; |
1da177e4 LT |
64 | |
65 | #include "sonic.h" | |
66 | ||
efcce839 FT |
67 | /* These should basically be bus-size and endian independent (since |
68 | the SONIC is at least smart enough that it uses the same endianness | |
69 | as the host, unlike certain less enlightened Macintosh NICs) */ | |
70 | #define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \ | |
71 | + lp->reg_offset)) | |
72 | #define SONIC_WRITE(reg,val) (nubus_writew(val, dev->base_addr + (reg * 4) \ | |
73 | + lp->reg_offset)) | |
74 | ||
75 | /* use 0 for production, 1 for verification, >1 for debug */ | |
76 | #ifdef SONIC_DEBUG | |
77 | static unsigned int sonic_debug = SONIC_DEBUG; | |
6aa20a22 | 78 | #else |
efcce839 FT |
79 | static unsigned int sonic_debug = 1; |
80 | #endif | |
1da177e4 | 81 | |
1da177e4 LT |
82 | static int sonic_version_printed; |
83 | ||
1da177e4 LT |
84 | /* For onboard SONIC */ |
85 | #define ONBOARD_SONIC_REGISTERS 0x50F0A000 | |
86 | #define ONBOARD_SONIC_PROM_BASE 0x50f08000 | |
87 | ||
88 | enum macsonic_type { | |
89 | MACSONIC_DUODOCK, | |
90 | MACSONIC_APPLE, | |
91 | MACSONIC_APPLE16, | |
92 | MACSONIC_DAYNA, | |
93 | MACSONIC_DAYNALINK | |
94 | }; | |
95 | ||
96 | /* For the built-in SONIC in the Duo Dock */ | |
97 | #define DUODOCK_SONIC_REGISTERS 0xe10000 | |
98 | #define DUODOCK_SONIC_PROM_BASE 0xe12000 | |
99 | ||
100 | /* For Apple-style NuBus SONIC */ | |
101 | #define APPLE_SONIC_REGISTERS 0 | |
102 | #define APPLE_SONIC_PROM_BASE 0x40000 | |
103 | ||
104 | /* Daynalink LC SONIC */ | |
105 | #define DAYNALINK_PROM_BASE 0x400000 | |
106 | ||
107 | /* For Dayna-style NuBus SONIC (haven't seen one yet) */ | |
108 | #define DAYNA_SONIC_REGISTERS 0x180000 | |
109 | /* This is what OpenBSD says. However, this is definitely in NuBus | |
110 | ROM space so we should be able to get it by walking the NuBus | |
111 | resource directories */ | |
112 | #define DAYNA_SONIC_MAC_ADDR 0xffe004 | |
113 | ||
114 | #define SONIC_READ_PROM(addr) nubus_readb(prom_addr+addr) | |
115 | ||
1da177e4 LT |
116 | /* |
117 | * For reversing the PROM address | |
118 | */ | |
119 | ||
1da177e4 LT |
120 | static inline void bit_reverse_addr(unsigned char addr[6]) |
121 | { | |
122 | int i; | |
123 | ||
124 | for(i = 0; i < 6; i++) | |
bc63eb9c | 125 | addr[i] = bitrev8(addr[i]); |
1da177e4 LT |
126 | } |
127 | ||
f4d86754 FT |
128 | static irqreturn_t macsonic_interrupt(int irq, void *dev_id) |
129 | { | |
130 | irqreturn_t result; | |
131 | unsigned long flags; | |
132 | ||
133 | local_irq_save(flags); | |
134 | result = sonic_interrupt(irq, dev_id); | |
135 | local_irq_restore(flags); | |
136 | return result; | |
137 | } | |
138 | ||
139 | static int macsonic_open(struct net_device* dev) | |
140 | { | |
546e3abd KV |
141 | int retval; |
142 | ||
e71ef315 | 143 | retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev); |
546e3abd KV |
144 | if (retval) { |
145 | printk(KERN_ERR "%s: unable to get IRQ %d.\n", | |
146 | dev->name, dev->irq); | |
147 | goto err; | |
f4d86754 FT |
148 | } |
149 | /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes | |
150 | * in at priority level 3. However, we sometimes get the level 2 inter- | |
151 | * rupt as well, which must prevent re-entrance of the sonic handler. | |
152 | */ | |
546e3abd | 153 | if (dev->irq == IRQ_AUTO_3) { |
e71ef315 GU |
154 | retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt, 0, |
155 | "sonic", dev); | |
546e3abd KV |
156 | if (retval) { |
157 | printk(KERN_ERR "%s: unable to get IRQ %d.\n", | |
158 | dev->name, IRQ_NUBUS_9); | |
159 | goto err_irq; | |
f4d86754 | 160 | } |
546e3abd KV |
161 | } |
162 | retval = sonic_open(dev); | |
163 | if (retval) | |
164 | goto err_irq_nubus; | |
165 | return 0; | |
166 | ||
167 | err_irq_nubus: | |
168 | if (dev->irq == IRQ_AUTO_3) | |
169 | free_irq(IRQ_NUBUS_9, dev); | |
170 | err_irq: | |
171 | free_irq(dev->irq, dev); | |
172 | err: | |
173 | return retval; | |
f4d86754 FT |
174 | } |
175 | ||
176 | static int macsonic_close(struct net_device* dev) | |
177 | { | |
178 | int err; | |
179 | err = sonic_close(dev); | |
180 | free_irq(dev->irq, dev); | |
181 | if (dev->irq == IRQ_AUTO_3) | |
182 | free_irq(IRQ_NUBUS_9, dev); | |
183 | return err; | |
184 | } | |
185 | ||
c6e6d852 AB |
186 | static const struct net_device_ops macsonic_netdev_ops = { |
187 | .ndo_open = macsonic_open, | |
188 | .ndo_stop = macsonic_close, | |
189 | .ndo_start_xmit = sonic_send_packet, | |
afc4b13d | 190 | .ndo_set_rx_mode = sonic_multicast_list, |
c6e6d852 AB |
191 | .ndo_tx_timeout = sonic_tx_timeout, |
192 | .ndo_get_stats = sonic_get_stats, | |
193 | .ndo_validate_addr = eth_validate_addr, | |
c6e6d852 AB |
194 | .ndo_set_mac_address = eth_mac_addr, |
195 | }; | |
196 | ||
6980cbe4 | 197 | static int macsonic_init(struct net_device *dev) |
1da177e4 | 198 | { |
efcce839 | 199 | struct sonic_local* lp = netdev_priv(dev); |
1da177e4 LT |
200 | |
201 | /* Allocate the entire chunk of memory for the descriptors. | |
202 | Note that this cannot cross a 64K boundary. */ | |
d0320f75 JP |
203 | lp->descriptors = dma_alloc_coherent(lp->device, |
204 | SIZEOF_SONIC_DESC * | |
205 | SONIC_BUS_SCALE(lp->dma_bitmode), | |
206 | &lp->descriptors_laddr, | |
207 | GFP_KERNEL); | |
208 | if (lp->descriptors == NULL) | |
1da177e4 | 209 | return -ENOMEM; |
1da177e4 LT |
210 | |
211 | /* Now set up the pointers to point to the appropriate places */ | |
efcce839 FT |
212 | lp->cda = lp->descriptors; |
213 | lp->tda = lp->cda + (SIZEOF_SONIC_CDA | |
214 | * SONIC_BUS_SCALE(lp->dma_bitmode)); | |
1da177e4 | 215 | lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS |
efcce839 | 216 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
1da177e4 | 217 | lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS |
efcce839 | 218 | * SONIC_BUS_SCALE(lp->dma_bitmode)); |
1da177e4 | 219 | |
efcce839 FT |
220 | lp->cda_laddr = lp->descriptors_laddr; |
221 | lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA | |
222 | * SONIC_BUS_SCALE(lp->dma_bitmode)); | |
223 | lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS | |
224 | * SONIC_BUS_SCALE(lp->dma_bitmode)); | |
225 | lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS | |
226 | * SONIC_BUS_SCALE(lp->dma_bitmode)); | |
1da177e4 | 227 | |
c6e6d852 | 228 | dev->netdev_ops = &macsonic_netdev_ops; |
efcce839 | 229 | dev->watchdog_timeo = TX_TIMEOUT; |
1da177e4 LT |
230 | |
231 | /* | |
232 | * clear tally counter | |
233 | */ | |
efcce839 FT |
234 | SONIC_WRITE(SONIC_CRCT, 0xffff); |
235 | SONIC_WRITE(SONIC_FAET, 0xffff); | |
236 | SONIC_WRITE(SONIC_MPT, 0xffff); | |
1da177e4 LT |
237 | |
238 | return 0; | |
239 | } | |
240 | ||
dcaa6a94 FT |
241 | #define INVALID_MAC(mac) (memcmp(mac, "\x08\x00\x07", 3) && \ |
242 | memcmp(mac, "\x00\xA0\x40", 3) && \ | |
243 | memcmp(mac, "\x00\x80\x19", 3) && \ | |
244 | memcmp(mac, "\x00\x05\x02", 3)) | |
245 | ||
6980cbe4 | 246 | static void mac_onboard_sonic_ethernet_addr(struct net_device *dev) |
1da177e4 | 247 | { |
efcce839 | 248 | struct sonic_local *lp = netdev_priv(dev); |
1da177e4 | 249 | const int prom_addr = ONBOARD_SONIC_PROM_BASE; |
dcaa6a94 | 250 | unsigned short val; |
1da177e4 | 251 | |
dcaa6a94 FT |
252 | /* |
253 | * On NuBus boards we can sometimes look in the ROM resources. | |
254 | * No such luck for comm-slot/onboard. | |
255 | * On the PowerBook 520, the PROM base address is a mystery. | |
256 | */ | |
257 | if (hwreg_present((void *)prom_addr)) { | |
258 | int i; | |
259 | ||
260 | for (i = 0; i < 6; i++) | |
261 | dev->dev_addr[i] = SONIC_READ_PROM(i); | |
262 | if (!INVALID_MAC(dev->dev_addr)) | |
263 | return; | |
1da177e4 | 264 | |
dcaa6a94 FT |
265 | /* |
266 | * Most of the time, the address is bit-reversed. The NetBSD | |
267 | * source has a rather long and detailed historical account of | |
268 | * why this is so. | |
269 | */ | |
1da177e4 | 270 | bit_reverse_addr(dev->dev_addr); |
dcaa6a94 FT |
271 | if (!INVALID_MAC(dev->dev_addr)) |
272 | return; | |
273 | ||
1da177e4 | 274 | /* |
dcaa6a94 FT |
275 | * If we still have what seems to be a bogus address, we'll |
276 | * look in the CAM. The top entry should be ours. | |
1da177e4 | 277 | */ |
dcaa6a94 FT |
278 | printk(KERN_WARNING "macsonic: MAC address in PROM seems " |
279 | "to be invalid, trying CAM\n"); | |
280 | } else { | |
281 | printk(KERN_WARNING "macsonic: cannot read MAC address from " | |
282 | "PROM, trying CAM\n"); | |
283 | } | |
284 | ||
285 | /* This only works if MacOS has already initialized the card. */ | |
286 | ||
287 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); | |
288 | SONIC_WRITE(SONIC_CEP, 15); | |
289 | ||
290 | val = SONIC_READ(SONIC_CAP2); | |
291 | dev->dev_addr[5] = val >> 8; | |
292 | dev->dev_addr[4] = val & 0xff; | |
293 | val = SONIC_READ(SONIC_CAP1); | |
294 | dev->dev_addr[3] = val >> 8; | |
295 | dev->dev_addr[2] = val & 0xff; | |
296 | val = SONIC_READ(SONIC_CAP0); | |
297 | dev->dev_addr[1] = val >> 8; | |
298 | dev->dev_addr[0] = val & 0xff; | |
299 | ||
300 | if (!INVALID_MAC(dev->dev_addr)) | |
301 | return; | |
302 | ||
303 | /* Still nonsense ... messed up someplace! */ | |
304 | ||
305 | printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 " | |
306 | "seems invalid, will use a random MAC\n"); | |
f2cedb63 | 307 | eth_hw_addr_random(dev); |
1da177e4 LT |
308 | } |
309 | ||
6980cbe4 | 310 | static int mac_onboard_sonic_probe(struct net_device *dev) |
1da177e4 | 311 | { |
efcce839 FT |
312 | struct sonic_local* lp = netdev_priv(dev); |
313 | int sr; | |
314 | int commslot = 0; | |
6aa20a22 | 315 | |
1da177e4 LT |
316 | if (!MACH_IS_MAC) |
317 | return -ENODEV; | |
318 | ||
efcce839 | 319 | printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. "); |
6aa20a22 | 320 | |
1da177e4 LT |
321 | /* Bogus probing, on the models which may or may not have |
322 | Ethernet (BTW, the Ethernet *is* always at the same | |
323 | address, and nothing else lives there, at least if Apple's | |
324 | documentation is to be believed) */ | |
325 | if (macintosh_config->ident == MAC_MODEL_Q630 || | |
326 | macintosh_config->ident == MAC_MODEL_P588 || | |
efcce839 | 327 | macintosh_config->ident == MAC_MODEL_P575 || |
1da177e4 | 328 | macintosh_config->ident == MAC_MODEL_C610) { |
1da177e4 LT |
329 | int card_present; |
330 | ||
1da177e4 | 331 | card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS); |
1da177e4 LT |
332 | if (!card_present) { |
333 | printk("none.\n"); | |
334 | return -ENODEV; | |
335 | } | |
efcce839 | 336 | commslot = 1; |
1da177e4 LT |
337 | } |
338 | ||
6aa20a22 | 339 | printk("yes\n"); |
1da177e4 | 340 | |
efcce839 FT |
341 | /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset |
342 | * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ | |
1da177e4 LT |
343 | dev->base_addr = ONBOARD_SONIC_REGISTERS; |
344 | if (via_alt_mapping) | |
345 | dev->irq = IRQ_AUTO_3; | |
346 | else | |
347 | dev->irq = IRQ_NUBUS_9; | |
348 | ||
349 | if (!sonic_version_printed) { | |
350 | printk(KERN_INFO "%s", version); | |
351 | sonic_version_printed = 1; | |
352 | } | |
353 | printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n", | |
c2313557 | 354 | dev_name(lp->device), dev->base_addr); |
1da177e4 LT |
355 | |
356 | /* The PowerBook's SONIC is 16 bit always. */ | |
357 | if (macintosh_config->ident == MAC_MODEL_PB520) { | |
efcce839 FT |
358 | lp->reg_offset = 0; |
359 | lp->dma_bitmode = SONIC_BITMODE16; | |
360 | sr = SONIC_READ(SONIC_SR); | |
361 | } else if (commslot) { | |
1da177e4 | 362 | /* Some of the comm-slot cards are 16 bit. But some |
efcce839 FT |
363 | of them are not. The 32-bit cards use offset 2 and |
364 | have known revisions, we try reading the revision | |
365 | register at offset 2, if we don't get a known revision | |
366 | we assume 16 bit at offset 0. */ | |
367 | lp->reg_offset = 2; | |
368 | lp->dma_bitmode = SONIC_BITMODE16; | |
369 | ||
370 | sr = SONIC_READ(SONIC_SR); | |
6aa20a22 | 371 | if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101) |
efcce839 FT |
372 | /* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */ |
373 | lp->dma_bitmode = SONIC_BITMODE32; | |
374 | else { | |
375 | lp->dma_bitmode = SONIC_BITMODE16; | |
376 | lp->reg_offset = 0; | |
377 | sr = SONIC_READ(SONIC_SR); | |
1da177e4 | 378 | } |
efcce839 FT |
379 | } else { |
380 | /* All onboard cards are at offset 2 with 32 bit DMA. */ | |
381 | lp->reg_offset = 2; | |
382 | lp->dma_bitmode = SONIC_BITMODE32; | |
383 | sr = SONIC_READ(SONIC_SR); | |
1da177e4 | 384 | } |
efcce839 FT |
385 | printk(KERN_INFO |
386 | "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", | |
c2313557 | 387 | dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset); |
1da177e4 | 388 | |
efcce839 | 389 | #if 0 /* This is sometimes useful to find out how MacOS configured the card. */ |
c2313557 | 390 | printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device), |
efcce839 FT |
391 | SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff); |
392 | #endif | |
1da177e4 | 393 | |
1da177e4 | 394 | /* Software reset, then initialize control registers. */ |
efcce839 FT |
395 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
396 | ||
397 | SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS | | |
398 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | | |
399 | (lp->dma_bitmode ? SONIC_DCR_DW : 0)); | |
1da177e4 LT |
400 | |
401 | /* This *must* be written back to in order to restore the | |
efcce839 FT |
402 | * extended programmable output bits, as it may not have been |
403 | * initialised since the hardware reset. */ | |
404 | SONIC_WRITE(SONIC_DCR2, 0); | |
1da177e4 LT |
405 | |
406 | /* Clear *and* disable interrupts to be on the safe side */ | |
efcce839 FT |
407 | SONIC_WRITE(SONIC_IMR, 0); |
408 | SONIC_WRITE(SONIC_ISR, 0x7fff); | |
1da177e4 LT |
409 | |
410 | /* Now look for the MAC address. */ | |
dcaa6a94 | 411 | mac_onboard_sonic_ethernet_addr(dev); |
1da177e4 | 412 | |
1da177e4 LT |
413 | /* Shared init code */ |
414 | return macsonic_init(dev); | |
415 | } | |
416 | ||
6980cbe4 | 417 | static int mac_nubus_sonic_ethernet_addr(struct net_device *dev, |
1dd06ae8 | 418 | unsigned long prom_addr, int id) |
1da177e4 LT |
419 | { |
420 | int i; | |
421 | for(i = 0; i < 6; i++) | |
422 | dev->dev_addr[i] = SONIC_READ_PROM(i); | |
efcce839 FT |
423 | |
424 | /* Some of the addresses are bit-reversed */ | |
425 | if (id != MACSONIC_DAYNA) | |
426 | bit_reverse_addr(dev->dev_addr); | |
1da177e4 LT |
427 | |
428 | return 0; | |
429 | } | |
430 | ||
6980cbe4 | 431 | static int macsonic_ident(struct nubus_dev *ndev) |
1da177e4 | 432 | { |
6aa20a22 | 433 | if (ndev->dr_hw == NUBUS_DRHW_ASANTE_LC && |
1da177e4 LT |
434 | ndev->dr_sw == NUBUS_DRSW_SONIC_LC) |
435 | return MACSONIC_DAYNALINK; | |
436 | if (ndev->dr_hw == NUBUS_DRHW_SONIC && | |
437 | ndev->dr_sw == NUBUS_DRSW_APPLE) { | |
438 | /* There has to be a better way to do this... */ | |
439 | if (strstr(ndev->board->name, "DuoDock")) | |
440 | return MACSONIC_DUODOCK; | |
441 | else | |
442 | return MACSONIC_APPLE; | |
443 | } | |
6aa20a22 | 444 | |
efcce839 FT |
445 | if (ndev->dr_hw == NUBUS_DRHW_SMC9194 && |
446 | ndev->dr_sw == NUBUS_DRSW_DAYNA) | |
447 | return MACSONIC_DAYNA; | |
6aa20a22 | 448 | |
f8779588 | 449 | if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC && |
efcce839 FT |
450 | ndev->dr_sw == 0) { /* huh? */ |
451 | return MACSONIC_APPLE16; | |
452 | } | |
1da177e4 LT |
453 | return -1; |
454 | } | |
455 | ||
6980cbe4 | 456 | static int mac_nubus_sonic_probe(struct net_device *dev) |
1da177e4 LT |
457 | { |
458 | static int slots; | |
459 | struct nubus_dev* ndev = NULL; | |
efcce839 | 460 | struct sonic_local* lp = netdev_priv(dev); |
1da177e4 LT |
461 | unsigned long base_addr, prom_addr; |
462 | u16 sonic_dcr; | |
efcce839 FT |
463 | int id = -1; |
464 | int reg_offset, dma_bitmode; | |
6aa20a22 | 465 | |
1da177e4 LT |
466 | /* Find the first SONIC that hasn't been initialized already */ |
467 | while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, | |
468 | NUBUS_TYPE_ETHERNET, ndev)) != NULL) | |
469 | { | |
470 | /* Have we seen it already? */ | |
471 | if (slots & (1<<ndev->board->slot)) | |
472 | continue; | |
473 | slots |= 1<<ndev->board->slot; | |
474 | ||
475 | /* Is it one of ours? */ | |
476 | if ((id = macsonic_ident(ndev)) != -1) | |
477 | break; | |
478 | } | |
479 | ||
480 | if (ndev == NULL) | |
481 | return -ENODEV; | |
482 | ||
483 | switch (id) { | |
484 | case MACSONIC_DUODOCK: | |
485 | base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS; | |
486 | prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE; | |
efcce839 FT |
487 | sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 | |
488 | SONIC_DCR_TFT0; | |
1da177e4 | 489 | reg_offset = 2; |
efcce839 | 490 | dma_bitmode = SONIC_BITMODE32; |
1da177e4 LT |
491 | break; |
492 | case MACSONIC_APPLE: | |
493 | base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; | |
494 | prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE; | |
495 | sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0; | |
496 | reg_offset = 0; | |
efcce839 | 497 | dma_bitmode = SONIC_BITMODE32; |
1da177e4 LT |
498 | break; |
499 | case MACSONIC_APPLE16: | |
500 | base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; | |
501 | prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE; | |
efcce839 | 502 | sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
6aa20a22 | 503 | SONIC_DCR_PO1 | SONIC_DCR_BMS; |
1da177e4 | 504 | reg_offset = 0; |
efcce839 | 505 | dma_bitmode = SONIC_BITMODE16; |
1da177e4 LT |
506 | break; |
507 | case MACSONIC_DAYNALINK: | |
508 | base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS; | |
509 | prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE; | |
efcce839 | 510 | sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | |
6aa20a22 | 511 | SONIC_DCR_PO1 | SONIC_DCR_BMS; |
1da177e4 | 512 | reg_offset = 0; |
efcce839 | 513 | dma_bitmode = SONIC_BITMODE16; |
1da177e4 LT |
514 | break; |
515 | case MACSONIC_DAYNA: | |
516 | base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS; | |
517 | prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR; | |
efcce839 FT |
518 | sonic_dcr = SONIC_DCR_BMS | |
519 | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1; | |
1da177e4 | 520 | reg_offset = 0; |
efcce839 | 521 | dma_bitmode = SONIC_BITMODE16; |
1da177e4 LT |
522 | break; |
523 | default: | |
524 | printk(KERN_ERR "macsonic: WTF, id is %d\n", id); | |
525 | return -ENODEV; | |
526 | } | |
527 | ||
efcce839 FT |
528 | /* Danger! My arms are flailing wildly! You *must* set lp->reg_offset |
529 | * and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */ | |
1da177e4 | 530 | dev->base_addr = base_addr; |
efcce839 FT |
531 | lp->reg_offset = reg_offset; |
532 | lp->dma_bitmode = dma_bitmode; | |
1da177e4 LT |
533 | dev->irq = SLOT2IRQ(ndev->board->slot); |
534 | ||
535 | if (!sonic_version_printed) { | |
536 | printk(KERN_INFO "%s", version); | |
537 | sonic_version_printed = 1; | |
538 | } | |
539 | printk(KERN_INFO "%s: %s in slot %X\n", | |
c2313557 | 540 | dev_name(lp->device), ndev->board->name, ndev->board->slot); |
1da177e4 | 541 | printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n", |
c2313557 | 542 | dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset); |
1da177e4 | 543 | |
efcce839 | 544 | #if 0 /* This is sometimes useful to find out how MacOS configured the card. */ |
c2313557 | 545 | printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device), |
efcce839 FT |
546 | SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff); |
547 | #endif | |
1da177e4 LT |
548 | |
549 | /* Software reset, then initialize control registers. */ | |
efcce839 FT |
550 | SONIC_WRITE(SONIC_CMD, SONIC_CR_RST); |
551 | SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0)); | |
552 | /* This *must* be written back to in order to restore the | |
553 | * extended programmable output bits, since it may not have been | |
554 | * initialised since the hardware reset. */ | |
555 | SONIC_WRITE(SONIC_DCR2, 0); | |
1da177e4 LT |
556 | |
557 | /* Clear *and* disable interrupts to be on the safe side */ | |
efcce839 FT |
558 | SONIC_WRITE(SONIC_IMR, 0); |
559 | SONIC_WRITE(SONIC_ISR, 0x7fff); | |
1da177e4 LT |
560 | |
561 | /* Now look for the MAC address. */ | |
562 | if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0) | |
563 | return -ENODEV; | |
564 | ||
efcce839 FT |
565 | /* Shared init code */ |
566 | return macsonic_init(dev); | |
567 | } | |
568 | ||
6980cbe4 | 569 | static int mac_sonic_probe(struct platform_device *pdev) |
efcce839 FT |
570 | { |
571 | struct net_device *dev; | |
572 | struct sonic_local *lp; | |
573 | int err; | |
efcce839 FT |
574 | |
575 | dev = alloc_etherdev(sizeof(struct sonic_local)); | |
576 | if (!dev) | |
577 | return -ENOMEM; | |
578 | ||
579 | lp = netdev_priv(dev); | |
d74472f0 FT |
580 | lp->device = &pdev->dev; |
581 | SET_NETDEV_DEV(dev, &pdev->dev); | |
4564cba7 | 582 | platform_set_drvdata(pdev, dev); |
efcce839 FT |
583 | |
584 | /* This will catch fatal stuff like -ENOMEM as well as success */ | |
585 | err = mac_onboard_sonic_probe(dev); | |
586 | if (err == 0) | |
587 | goto found; | |
588 | if (err != -ENODEV) | |
589 | goto out; | |
590 | err = mac_nubus_sonic_probe(dev); | |
591 | if (err) | |
592 | goto out; | |
593 | found: | |
594 | err = register_netdev(dev); | |
595 | if (err) | |
596 | goto out; | |
597 | ||
e174961c | 598 | printk("%s: MAC %pM IRQ %d\n", dev->name, dev->dev_addr, dev->irq); |
1da177e4 | 599 | |
efcce839 | 600 | return 0; |
1da177e4 | 601 | |
efcce839 FT |
602 | out: |
603 | free_netdev(dev); | |
1da177e4 | 604 | |
efcce839 FT |
605 | return err; |
606 | } | |
607 | ||
608 | MODULE_DESCRIPTION("Macintosh SONIC ethernet driver"); | |
609 | module_param(sonic_debug, int, 0); | |
1da177e4 | 610 | MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)"); |
eeb9c182 | 611 | MODULE_ALIAS("platform:macsonic"); |
1da177e4 | 612 | |
efcce839 FT |
613 | #include "sonic.c" |
614 | ||
6980cbe4 | 615 | static int mac_sonic_device_remove(struct platform_device *pdev) |
1da177e4 | 616 | { |
d74472f0 | 617 | struct net_device *dev = platform_get_drvdata(pdev); |
efcce839 FT |
618 | struct sonic_local* lp = netdev_priv(dev); |
619 | ||
d74472f0 | 620 | unregister_netdev(dev); |
efcce839 FT |
621 | dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode), |
622 | lp->descriptors, lp->descriptors_laddr); | |
d74472f0 | 623 | free_netdev(dev); |
efcce839 | 624 | |
1da177e4 LT |
625 | return 0; |
626 | } | |
627 | ||
3ae5eaec | 628 | static struct platform_driver mac_sonic_driver = { |
efcce839 | 629 | .probe = mac_sonic_probe, |
6980cbe4 | 630 | .remove = mac_sonic_device_remove, |
3ae5eaec | 631 | .driver = { |
eeb9c182 | 632 | .name = mac_sonic_string, |
3ae5eaec | 633 | }, |
efcce839 FT |
634 | }; |
635 | ||
db62f684 | 636 | module_platform_driver(mac_sonic_driver); |