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Use access mode instead of open flags to determine needed permissions
[pv_ops_mirror.git] / drivers / net / smc91x.h
blob07b7f7120e374854be1a296496916690c587cc38
1 /*------------------------------------------------------------------------
2 . smc91x.h - macros for SMSC's 91C9x/91C1xx single-chip Ethernet device.
3 .
4 . Copyright (C) 1996 by Erik Stahlman
5 . Copyright (C) 2001 Standard Microsystems Corporation
6 . Developed by Simple Network Magic Corporation
7 . Copyright (C) 2003 Monta Vista Software, Inc.
8 . Unified SMC91x driver by Nicolas Pitre
9 .
10 . This program is free software; you can redistribute it and/or modify
11 . it under the terms of the GNU General Public License as published by
12 . the Free Software Foundation; either version 2 of the License, or
13 . (at your option) any later version.
14 .
15 . This program is distributed in the hope that it will be useful,
16 . but WITHOUT ANY WARRANTY; without even the implied warranty of
17 . MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 . GNU General Public License for more details.
19 .
20 . You should have received a copy of the GNU General Public License
21 . along with this program; if not, write to the Free Software
22 . Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 .
24 . Information contained in this file was obtained from the LAN91C111
25 . manual from SMC. To get a copy, if you really want one, you can find
26 . information under www.smsc.com.
27 .
28 . Authors
29 . Erik Stahlman <erik@vt.edu>
30 . Daris A Nevil <dnevil@snmc.com>
31 . Nicolas Pitre <nico@cam.org>
32 .
33 ---------------------------------------------------------------------------*/
34 #ifndef _SMC91X_H_
35 #define _SMC91X_H_
36
37
38 /*
39 * Define your architecture specific bus configuration parameters here.
40 */
41
42 #if defined(CONFIG_ARCH_LUBBOCK)
43
44 /* We can only do 16-bit reads and writes in the static memory space. */
45 #define SMC_CAN_USE_8BIT 0
46 #define SMC_CAN_USE_16BIT 1
47 #define SMC_CAN_USE_32BIT 0
48 #define SMC_NOWAIT 1
49
50 /* The first two address lines aren't connected... */
51 #define SMC_IO_SHIFT 2
52
53 #define SMC_inw(a, r) readw((a) + (r))
54 #define SMC_outw(v, a, r) writew(v, (a) + (r))
55 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
56 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
57
58 #elif defined(CONFIG_BLACKFIN)
59
60 #define SMC_IRQ_FLAGS IRQF_TRIGGER_HIGH
61 #define RPC_LSA_DEFAULT RPC_LED_100_10
62 #define RPC_LSB_DEFAULT RPC_LED_TX_RX
63
64 # if defined (CONFIG_BFIN561_EZKIT)
65 #define SMC_CAN_USE_8BIT 0
66 #define SMC_CAN_USE_16BIT 1
67 #define SMC_CAN_USE_32BIT 1
68 #define SMC_IO_SHIFT 0
69 #define SMC_NOWAIT 1
70 #define SMC_USE_BFIN_DMA 0
71
72
73 #define SMC_inw(a, r) readw((a) + (r))
74 #define SMC_outw(v, a, r) writew(v, (a) + (r))
75 #define SMC_inl(a, r) readl((a) + (r))
76 #define SMC_outl(v, a, r) writel(v, (a) + (r))
77 #define SMC_outsl(a, r, p, l) outsl((unsigned long *)((a) + (r)), p, l)
78 #define SMC_insl(a, r, p, l) insl ((unsigned long *)((a) + (r)), p, l)
79 # else
80 #define SMC_CAN_USE_8BIT 0
81 #define SMC_CAN_USE_16BIT 1
82 #define SMC_CAN_USE_32BIT 0
83 #define SMC_IO_SHIFT 0
84 #define SMC_NOWAIT 1
85 #define SMC_USE_BFIN_DMA 0
86
87
88 #define SMC_inw(a, r) readw((a) + (r))
89 #define SMC_outw(v, a, r) writew(v, (a) + (r))
90 #define SMC_outsw(a, r, p, l) outsw((unsigned long *)((a) + (r)), p, l)
91 #define SMC_insw(a, r, p, l) insw ((unsigned long *)((a) + (r)), p, l)
92 # endif
93 /* check if the mac in reg is valid */
94 #define SMC_GET_MAC_ADDR(addr) \
95 do { \
96 unsigned int __v; \
97 __v = SMC_inw(ioaddr, ADDR0_REG); \
98 addr[0] = __v; addr[1] = __v >> 8; \
99 __v = SMC_inw(ioaddr, ADDR1_REG); \
100 addr[2] = __v; addr[3] = __v >> 8; \
101 __v = SMC_inw(ioaddr, ADDR2_REG); \
102 addr[4] = __v; addr[5] = __v >> 8; \
103 if (*(u32 *)(&addr[0]) == 0xFFFFFFFF) { \
104 random_ether_addr(addr); \
105 } \
106 } while (0)
107 #elif defined(CONFIG_REDWOOD_5) || defined(CONFIG_REDWOOD_6)
108
109 /* We can only do 16-bit reads and writes in the static memory space. */
110 #define SMC_CAN_USE_8BIT 0
111 #define SMC_CAN_USE_16BIT 1
112 #define SMC_CAN_USE_32BIT 0
113 #define SMC_NOWAIT 1
114
115 #define SMC_IO_SHIFT 0
116
117 #define SMC_inw(a, r) in_be16((volatile u16 *)((a) + (r)))
118 #define SMC_outw(v, a, r) out_be16((volatile u16 *)((a) + (r)), v)
119 #define SMC_insw(a, r, p, l) \
120 do { \
121 unsigned long __port = (a) + (r); \
122 u16 *__p = (u16 *)(p); \
123 int __l = (l); \
124 insw(__port, __p, __l); \
125 while (__l > 0) { \
126 *__p = swab16(*__p); \
127 __p++; \
128 __l--; \
129 } \
130 } while (0)
131 #define SMC_outsw(a, r, p, l) \
132 do { \
133 unsigned long __port = (a) + (r); \
134 u16 *__p = (u16 *)(p); \
135 int __l = (l); \
136 while (__l > 0) { \
137 /* Believe it or not, the swab isn't needed. */ \
138 outw( /* swab16 */ (*__p++), __port); \
139 __l--; \
140 } \
141 } while (0)
142 #define SMC_IRQ_FLAGS (0)
143
144 #elif defined(CONFIG_SA1100_PLEB)
145 /* We can only do 16-bit reads and writes in the static memory space. */
146 #define SMC_CAN_USE_8BIT 1
147 #define SMC_CAN_USE_16BIT 1
148 #define SMC_CAN_USE_32BIT 0
149 #define SMC_IO_SHIFT 0
150 #define SMC_NOWAIT 1
151
152 #define SMC_inb(a, r) readb((a) + (r))
153 #define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
154 #define SMC_inw(a, r) readw((a) + (r))
155 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
156 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
157 #define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
158 #define SMC_outw(v, a, r) writew(v, (a) + (r))
159 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
160
161 #define SMC_IRQ_FLAGS (0)
162
163 #elif defined(CONFIG_SA1100_ASSABET)
164
165 #include <asm/arch/neponset.h>
166
167 /* We can only do 8-bit reads and writes in the static memory space. */
168 #define SMC_CAN_USE_8BIT 1
169 #define SMC_CAN_USE_16BIT 0
170 #define SMC_CAN_USE_32BIT 0
171 #define SMC_NOWAIT 1
172
173 /* The first two address lines aren't connected... */
174 #define SMC_IO_SHIFT 2
175
176 #define SMC_inb(a, r) readb((a) + (r))
177 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
178 #define SMC_insb(a, r, p, l) readsb((a) + (r), p, (l))
179 #define SMC_outsb(a, r, p, l) writesb((a) + (r), p, (l))
180
181 #elif defined(CONFIG_MACH_LOGICPD_PXA270)
182
183 #define SMC_CAN_USE_8BIT 0
184 #define SMC_CAN_USE_16BIT 1
185 #define SMC_CAN_USE_32BIT 0
186 #define SMC_IO_SHIFT 0
187 #define SMC_NOWAIT 1
188
189 #define SMC_inw(a, r) readw((a) + (r))
190 #define SMC_outw(v, a, r) writew(v, (a) + (r))
191 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
192 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
193
194 #elif defined(CONFIG_ARCH_INNOKOM) || \
195 defined(CONFIG_MACH_MAINSTONE) || \
196 defined(CONFIG_ARCH_PXA_IDP) || \
197 defined(CONFIG_ARCH_RAMSES)
198
199 #define SMC_CAN_USE_8BIT 1
200 #define SMC_CAN_USE_16BIT 1
201 #define SMC_CAN_USE_32BIT 1
202 #define SMC_IO_SHIFT 0
203 #define SMC_NOWAIT 1
204 #define SMC_USE_PXA_DMA 1
205
206 #define SMC_inb(a, r) readb((a) + (r))
207 #define SMC_inw(a, r) readw((a) + (r))
208 #define SMC_inl(a, r) readl((a) + (r))
209 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
210 #define SMC_outl(v, a, r) writel(v, (a) + (r))
211 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
212 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
213
214 /* We actually can't write halfwords properly if not word aligned */
215 static inline void
216 SMC_outw(u16 val, void __iomem *ioaddr, int reg)
217 {
218 if (reg & 2) {
219 unsigned int v = val << 16;
220 v |= readl(ioaddr + (reg & ~2)) & 0xffff;
221 writel(v, ioaddr + (reg & ~2));
222 } else {
223 writew(val, ioaddr + reg);
224 }
225 }
226
227 #elif defined(CONFIG_MACH_ZYLONITE)
228
229 #define SMC_CAN_USE_8BIT 1
230 #define SMC_CAN_USE_16BIT 1
231 #define SMC_CAN_USE_32BIT 0
232 #define SMC_IO_SHIFT 0
233 #define SMC_NOWAIT 1
234 #define SMC_USE_PXA_DMA 1
235 #define SMC_inb(a, r) readb((a) + (r))
236 #define SMC_inw(a, r) readw((a) + (r))
237 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
238 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
239 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
240 #define SMC_outw(v, a, r) writew(v, (a) + (r))
241
242 #elif defined(CONFIG_ARCH_OMAP)
243
244 /* We can only do 16-bit reads and writes in the static memory space. */
245 #define SMC_CAN_USE_8BIT 0
246 #define SMC_CAN_USE_16BIT 1
247 #define SMC_CAN_USE_32BIT 0
248 #define SMC_IO_SHIFT 0
249 #define SMC_NOWAIT 1
250
251 #define SMC_inw(a, r) readw((a) + (r))
252 #define SMC_outw(v, a, r) writew(v, (a) + (r))
253 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
254 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
255
256 #include <asm/mach-types.h>
257 #include <asm/arch/cpu.h>
258
259 #define SMC_IRQ_FLAGS (( \
260 machine_is_omap_h2() \
261 || machine_is_omap_h3() \
262 || machine_is_omap_h4() \
263 || (machine_is_omap_innovator() && !cpu_is_omap1510()) \
264 ) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING)
265
266
267 #elif defined(CONFIG_SH_SH4202_MICRODEV)
268
269 #define SMC_CAN_USE_8BIT 0
270 #define SMC_CAN_USE_16BIT 1
271 #define SMC_CAN_USE_32BIT 0
272
273 #define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
274 #define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
275 #define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
276 #define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
277 #define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
278 #define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
279 #define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
280 #define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
281 #define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
282 #define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
283
284 #define SMC_IRQ_FLAGS (0)
285
286 #elif defined(CONFIG_ISA)
287
288 #define SMC_CAN_USE_8BIT 1
289 #define SMC_CAN_USE_16BIT 1
290 #define SMC_CAN_USE_32BIT 0
291
292 #define SMC_inb(a, r) inb((a) + (r))
293 #define SMC_inw(a, r) inw((a) + (r))
294 #define SMC_outb(v, a, r) outb(v, (a) + (r))
295 #define SMC_outw(v, a, r) outw(v, (a) + (r))
296 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
297 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
298
299 #elif defined(CONFIG_SUPERH)
300
301 #ifdef CONFIG_SOLUTION_ENGINE
302 #define SMC_IRQ_FLAGS (0)
303 #define SMC_CAN_USE_8BIT 0
304 #define SMC_CAN_USE_16BIT 1
305 #define SMC_CAN_USE_32BIT 0
306 #define SMC_IO_SHIFT 0
307 #define SMC_NOWAIT 1
308
309 #define SMC_inw(a, r) inw((a) + (r))
310 #define SMC_outw(v, a, r) outw(v, (a) + (r))
311 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
312 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
313
314 #else /* BOARDS */
315
316 #define SMC_CAN_USE_8BIT 1
317 #define SMC_CAN_USE_16BIT 1
318 #define SMC_CAN_USE_32BIT 0
319
320 #define SMC_inb(a, r) inb((a) + (r))
321 #define SMC_inw(a, r) inw((a) + (r))
322 #define SMC_outb(v, a, r) outb(v, (a) + (r))
323 #define SMC_outw(v, a, r) outw(v, (a) + (r))
324 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
325 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
326
327 #endif /* BOARDS */
328
329 #elif defined(CONFIG_M32R)
330
331 #define SMC_CAN_USE_8BIT 0
332 #define SMC_CAN_USE_16BIT 1
333 #define SMC_CAN_USE_32BIT 0
334
335 #define SMC_inb(a, r) inb(((u32)a) + (r))
336 #define SMC_inw(a, r) inw(((u32)a) + (r))
337 #define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
338 #define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
339 #define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
340 #define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
341
342 #define SMC_IRQ_FLAGS (0)
343
344 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
345 #define RPC_LSB_DEFAULT RPC_LED_100_10
346
347 #elif defined(CONFIG_MACH_LPD79520) \
348 || defined(CONFIG_MACH_LPD7A400) \
349 || defined(CONFIG_MACH_LPD7A404)
350
351 /* The LPD7X_IOBARRIER is necessary to overcome a mismatch between the
352 * way that the CPU handles chip selects and the way that the SMC chip
353 * expects the chip select to operate. Refer to
354 * Documentation/arm/Sharp-LH/IOBarrier for details. The read from
355 * IOBARRIER is a byte, in order that we read the least-common
356 * denominator. It would be wasteful to read 32 bits from an 8-bit
357 * accessible region.
358 *
359 * There is no explicit protection against interrupts intervening
360 * between the writew and the IOBARRIER. In SMC ISR there is a
361 * preamble that performs an IOBARRIER in the extremely unlikely event
362 * that the driver interrupts itself between a writew to the chip an
363 * the IOBARRIER that follows *and* the cache is large enough that the
364 * first off-chip access while handing the interrupt is to the SMC
365 * chip. Other devices in the same address space as the SMC chip must
366 * be aware of the potential for trouble and perform a similar
367 * IOBARRIER on entry to their ISR.
368 */
369
370 #include <asm/arch/constants.h> /* IOBARRIER_VIRT */
371
372 #define SMC_CAN_USE_8BIT 0
373 #define SMC_CAN_USE_16BIT 1
374 #define SMC_CAN_USE_32BIT 0
375 #define SMC_NOWAIT 0
376 #define LPD7X_IOBARRIER readb (IOBARRIER_VIRT)
377
378 #define SMC_inw(a,r)\
379 ({ unsigned short v = readw ((void*) ((a) + (r))); LPD7X_IOBARRIER; v; })
380 #define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7X_IOBARRIER; })
381
382 #define SMC_insw LPD7_SMC_insw
383 static inline void LPD7_SMC_insw (unsigned char* a, int r,
384 unsigned char* p, int l)
385 {
386 unsigned short* ps = (unsigned short*) p;
387 while (l-- > 0) {
388 *ps++ = readw (a + r);
389 LPD7X_IOBARRIER;
390 }
391 }
392
393 #define SMC_outsw LPD7_SMC_outsw
394 static inline void LPD7_SMC_outsw (unsigned char* a, int r,
395 unsigned char* p, int l)
396 {
397 unsigned short* ps = (unsigned short*) p;
398 while (l-- > 0) {
399 writew (*ps++, a + r);
400 LPD7X_IOBARRIER;
401 }
402 }
403
404 #define SMC_INTERRUPT_PREAMBLE LPD7X_IOBARRIER
405
406 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
407 #define RPC_LSB_DEFAULT RPC_LED_100_10
408
409 #elif defined(CONFIG_SOC_AU1X00)
410
411 #include <au1xxx.h>
412
413 /* We can only do 16-bit reads and writes in the static memory space. */
414 #define SMC_CAN_USE_8BIT 0
415 #define SMC_CAN_USE_16BIT 1
416 #define SMC_CAN_USE_32BIT 0
417 #define SMC_IO_SHIFT 0
418 #define SMC_NOWAIT 1
419
420 #define SMC_inw(a, r) au_readw((unsigned long)((a) + (r)))
421 #define SMC_insw(a, r, p, l) \
422 do { \
423 unsigned long _a = (unsigned long)((a) + (r)); \
424 int _l = (l); \
425 u16 *_p = (u16 *)(p); \
426 while (_l-- > 0) \
427 *_p++ = au_readw(_a); \
428 } while(0)
429 #define SMC_outw(v, a, r) au_writew(v, (unsigned long)((a) + (r)))
430 #define SMC_outsw(a, r, p, l) \
431 do { \
432 unsigned long _a = (unsigned long)((a) + (r)); \
433 int _l = (l); \
434 const u16 *_p = (const u16 *)(p); \
435 while (_l-- > 0) \
436 au_writew(*_p++ , _a); \
437 } while(0)
438
439 #define SMC_IRQ_FLAGS (0)
440
441 #elif defined(CONFIG_ARCH_VERSATILE)
442
443 #define SMC_CAN_USE_8BIT 1
444 #define SMC_CAN_USE_16BIT 1
445 #define SMC_CAN_USE_32BIT 1
446 #define SMC_NOWAIT 1
447
448 #define SMC_inb(a, r) readb((a) + (r))
449 #define SMC_inw(a, r) readw((a) + (r))
450 #define SMC_inl(a, r) readl((a) + (r))
451 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
452 #define SMC_outw(v, a, r) writew(v, (a) + (r))
453 #define SMC_outl(v, a, r) writel(v, (a) + (r))
454 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
455 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
456
457 #define SMC_IRQ_FLAGS (0)
458
459 #else
460
461 #define SMC_CAN_USE_8BIT 1
462 #define SMC_CAN_USE_16BIT 1
463 #define SMC_CAN_USE_32BIT 1
464 #define SMC_NOWAIT 1
465
466 #define SMC_inb(a, r) readb((a) + (r))
467 #define SMC_inw(a, r) readw((a) + (r))
468 #define SMC_inl(a, r) readl((a) + (r))
469 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
470 #define SMC_outw(v, a, r) writew(v, (a) + (r))
471 #define SMC_outl(v, a, r) writel(v, (a) + (r))
472 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
473 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
474
475 #define RPC_LSA_DEFAULT RPC_LED_100_10
476 #define RPC_LSB_DEFAULT RPC_LED_TX_RX
477
478 #endif
479
480
481 /* store this information for the driver.. */
482 struct smc_local {
483 /*
484 * If I have to wait until memory is available to send a
485 * packet, I will store the skbuff here, until I get the
486 * desired memory. Then, I'll send it out and free it.
487 */
488 struct sk_buff *pending_tx_skb;
489 struct tasklet_struct tx_task;
490
491 /* version/revision of the SMC91x chip */
492 int version;
493
494 /* Contains the current active transmission mode */
495 int tcr_cur_mode;
496
497 /* Contains the current active receive mode */
498 int rcr_cur_mode;
499
500 /* Contains the current active receive/phy mode */
501 int rpc_cur_mode;
502 int ctl_rfduplx;
503 int ctl_rspeed;
504
505 u32 msg_enable;
506 u32 phy_type;
507 struct mii_if_info mii;
508
509 /* work queue */
510 struct work_struct phy_configure;
511 struct net_device *dev;
512 int work_pending;
513
514 spinlock_t lock;
515
516 #ifdef SMC_USE_PXA_DMA
517 /* DMA needs the physical address of the chip */
518 u_long physaddr;
519 struct device *device;
520 #endif
521 void __iomem *base;
522 void __iomem *datacs;
523 };
524
525
526 #ifdef SMC_USE_PXA_DMA
527 /*
528 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
529 * always happening in irq context so no need to worry about races. TX is
530 * different and probably not worth it for that reason, and not as critical
531 * as RX which can overrun memory and lose packets.
532 */
533 #include <linux/dma-mapping.h>
534 #include <asm/dma.h>
535 #include <asm/arch/pxa-regs.h>
536
537 #ifdef SMC_insl
538 #undef SMC_insl
539 #define SMC_insl(a, r, p, l) \
540 smc_pxa_dma_insl(a, lp, r, dev->dma, p, l)
541 static inline void
542 smc_pxa_dma_insl(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma,
543 u_char *buf, int len)
544 {
545 u_long physaddr = lp->physaddr;
546 dma_addr_t dmabuf;
547
548 /* fallback if no DMA available */
549 if (dma == (unsigned char)-1) {
550 readsl(ioaddr + reg, buf, len);
551 return;
552 }
553
554 /* 64 bit alignment is required for memory to memory DMA */
555 if ((long)buf & 4) {
556 *((u32 *)buf) = SMC_inl(ioaddr, reg);
557 buf += 4;
558 len--;
559 }
560
561 len *= 4;
562 dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE);
563 DCSR(dma) = DCSR_NODESC;
564 DTADR(dma) = dmabuf;
565 DSADR(dma) = physaddr + reg;
566 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
567 DCMD_WIDTH4 | (DCMD_LENGTH & len));
568 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
569 while (!(DCSR(dma) & DCSR_STOPSTATE))
570 cpu_relax();
571 DCSR(dma) = 0;
572 dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE);
573 }
574 #endif
575
576 #ifdef SMC_insw
577 #undef SMC_insw
578 #define SMC_insw(a, r, p, l) \
579 smc_pxa_dma_insw(a, lp, r, dev->dma, p, l)
580 static inline void
581 smc_pxa_dma_insw(void __iomem *ioaddr, struct smc_local *lp, int reg, int dma,
582 u_char *buf, int len)
583 {
584 u_long physaddr = lp->physaddr;
585 dma_addr_t dmabuf;
586
587 /* fallback if no DMA available */
588 if (dma == (unsigned char)-1) {
589 readsw(ioaddr + reg, buf, len);
590 return;
591 }
592
593 /* 64 bit alignment is required for memory to memory DMA */
594 while ((long)buf & 6) {
595 *((u16 *)buf) = SMC_inw(ioaddr, reg);
596 buf += 2;
597 len--;
598 }
599
600 len *= 2;
601 dmabuf = dma_map_single(lp->device, buf, len, DMA_FROM_DEVICE);
602 DCSR(dma) = DCSR_NODESC;
603 DTADR(dma) = dmabuf;
604 DSADR(dma) = physaddr + reg;
605 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
606 DCMD_WIDTH2 | (DCMD_LENGTH & len));
607 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
608 while (!(DCSR(dma) & DCSR_STOPSTATE))
609 cpu_relax();
610 DCSR(dma) = 0;
611 dma_unmap_single(lp->device, dmabuf, len, DMA_FROM_DEVICE);
612 }
613 #endif
614
615 static void
616 smc_pxa_dma_irq(int dma, void *dummy)
617 {
618 DCSR(dma) = 0;
619 }
620 #endif /* SMC_USE_PXA_DMA */
621
622
623 /*
624 * Everything a particular hardware setup needs should have been defined
625 * at this point. Add stubs for the undefined cases, mainly to avoid
626 * compilation warnings since they'll be optimized away, or to prevent buggy
627 * use of them.
628 */
629
630 #if ! SMC_CAN_USE_32BIT
631 #define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
632 #define SMC_outl(x, ioaddr, reg) BUG()
633 #define SMC_insl(a, r, p, l) BUG()
634 #define SMC_outsl(a, r, p, l) BUG()
635 #endif
636
637 #if !defined(SMC_insl) || !defined(SMC_outsl)
638 #define SMC_insl(a, r, p, l) BUG()
639 #define SMC_outsl(a, r, p, l) BUG()
640 #endif
641
642 #if ! SMC_CAN_USE_16BIT
643
644 /*
645 * Any 16-bit access is performed with two 8-bit accesses if the hardware
646 * can't do it directly. Most registers are 16-bit so those are mandatory.
647 */
648 #define SMC_outw(x, ioaddr, reg) \
649 do { \
650 unsigned int __val16 = (x); \
651 SMC_outb( __val16, ioaddr, reg ); \
652 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
653 } while (0)
654 #define SMC_inw(ioaddr, reg) \
655 ({ \
656 unsigned int __val16; \
657 __val16 = SMC_inb( ioaddr, reg ); \
658 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
659 __val16; \
660 })
661
662 #define SMC_insw(a, r, p, l) BUG()
663 #define SMC_outsw(a, r, p, l) BUG()
664
665 #endif
666
667 #if !defined(SMC_insw) || !defined(SMC_outsw)
668 #define SMC_insw(a, r, p, l) BUG()
669 #define SMC_outsw(a, r, p, l) BUG()
670 #endif
671
672 #if ! SMC_CAN_USE_8BIT
673 #define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
674 #define SMC_outb(x, ioaddr, reg) BUG()
675 #define SMC_insb(a, r, p, l) BUG()
676 #define SMC_outsb(a, r, p, l) BUG()
677 #endif
678
679 #if !defined(SMC_insb) || !defined(SMC_outsb)
680 #define SMC_insb(a, r, p, l) BUG()
681 #define SMC_outsb(a, r, p, l) BUG()
682 #endif
683
684 #ifndef SMC_CAN_USE_DATACS
685 #define SMC_CAN_USE_DATACS 0
686 #endif
687
688 #ifndef SMC_IO_SHIFT
689 #define SMC_IO_SHIFT 0
690 #endif
691
692 #ifndef SMC_IRQ_FLAGS
693 #define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING
694 #endif
695
696 #ifndef SMC_INTERRUPT_PREAMBLE
697 #define SMC_INTERRUPT_PREAMBLE
698 #endif
699
700
701 /* Because of bank switching, the LAN91x uses only 16 I/O ports */
702 #define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
703 #define SMC_DATA_EXTENT (4)
704
705 /*
706 . Bank Select Register:
707 .
708 . yyyy yyyy 0000 00xx
709 . xx = bank number
710 . yyyy yyyy = 0x33, for identification purposes.
711 */
712 #define BANK_SELECT (14 << SMC_IO_SHIFT)
713
714
715 // Transmit Control Register
716 /* BANK 0 */
717 #define TCR_REG SMC_REG(0x0000, 0)
718 #define TCR_ENABLE 0x0001 // When 1 we can transmit
719 #define TCR_LOOP 0x0002 // Controls output pin LBK
720 #define TCR_FORCOL 0x0004 // When 1 will force a collision
721 #define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
722 #define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
723 #define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
724 #define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
725 #define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
726 #define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
727 #define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
728
729 #define TCR_CLEAR 0 /* do NOTHING */
730 /* the default settings for the TCR register : */
731 #define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
732
733
734 // EPH Status Register
735 /* BANK 0 */
736 #define EPH_STATUS_REG SMC_REG(0x0002, 0)
737 #define ES_TX_SUC 0x0001 // Last TX was successful
738 #define ES_SNGL_COL 0x0002 // Single collision detected for last tx
739 #define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
740 #define ES_LTX_MULT 0x0008 // Last tx was a multicast
741 #define ES_16COL 0x0010 // 16 Collisions Reached
742 #define ES_SQET 0x0020 // Signal Quality Error Test
743 #define ES_LTXBRD 0x0040 // Last tx was a broadcast
744 #define ES_TXDEFR 0x0080 // Transmit Deferred
745 #define ES_LATCOL 0x0200 // Late collision detected on last tx
746 #define ES_LOSTCARR 0x0400 // Lost Carrier Sense
747 #define ES_EXC_DEF 0x0800 // Excessive Deferral
748 #define ES_CTR_ROL 0x1000 // Counter Roll Over indication
749 #define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
750 #define ES_TXUNRN 0x8000 // Tx Underrun
751
752
753 // Receive Control Register
754 /* BANK 0 */
755 #define RCR_REG SMC_REG(0x0004, 0)
756 #define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
757 #define RCR_PRMS 0x0002 // Enable promiscuous mode
758 #define RCR_ALMUL 0x0004 // When set accepts all multicast frames
759 #define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
760 #define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
761 #define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
762 #define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
763 #define RCR_SOFTRST 0x8000 // resets the chip
764
765 /* the normal settings for the RCR register : */
766 #define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
767 #define RCR_CLEAR 0x0 // set it to a base state
768
769
770 // Counter Register
771 /* BANK 0 */
772 #define COUNTER_REG SMC_REG(0x0006, 0)
773
774
775 // Memory Information Register
776 /* BANK 0 */
777 #define MIR_REG SMC_REG(0x0008, 0)
778
779
780 // Receive/Phy Control Register
781 /* BANK 0 */
782 #define RPC_REG SMC_REG(0x000A, 0)
783 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
784 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
785 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
786 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
787 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
788 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
789 #define RPC_LED_RES (0x01) // LED = Reserved
790 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
791 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
792 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
793 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
794 #define RPC_LED_TX (0x06) // LED = TX packet occurred
795 #define RPC_LED_RX (0x07) // LED = RX packet occurred
796
797 #ifndef RPC_LSA_DEFAULT
798 #define RPC_LSA_DEFAULT RPC_LED_100
799 #endif
800 #ifndef RPC_LSB_DEFAULT
801 #define RPC_LSB_DEFAULT RPC_LED_FD
802 #endif
803
804 #define RPC_DEFAULT (RPC_ANEG | (RPC_LSA_DEFAULT << RPC_LSXA_SHFT) | (RPC_LSB_DEFAULT << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
805
806
807 /* Bank 0 0x0C is reserved */
808
809 // Bank Select Register
810 /* All Banks */
811 #define BSR_REG 0x000E
812
813
814 // Configuration Reg
815 /* BANK 1 */
816 #define CONFIG_REG SMC_REG(0x0000, 1)
817 #define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
818 #define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
819 #define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
820 #define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
821
822 // Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
823 #define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
824
825
826 // Base Address Register
827 /* BANK 1 */
828 #define BASE_REG SMC_REG(0x0002, 1)
829
830
831 // Individual Address Registers
832 /* BANK 1 */
833 #define ADDR0_REG SMC_REG(0x0004, 1)
834 #define ADDR1_REG SMC_REG(0x0006, 1)
835 #define ADDR2_REG SMC_REG(0x0008, 1)
836
837
838 // General Purpose Register
839 /* BANK 1 */
840 #define GP_REG SMC_REG(0x000A, 1)
841
842
843 // Control Register
844 /* BANK 1 */
845 #define CTL_REG SMC_REG(0x000C, 1)
846 #define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
847 #define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
848 #define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
849 #define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
850 #define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
851 #define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
852 #define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
853 #define CTL_STORE 0x0001 // When set stores registers into EEPROM
854
855
856 // MMU Command Register
857 /* BANK 2 */
858 #define MMU_CMD_REG SMC_REG(0x0000, 2)
859 #define MC_BUSY 1 // When 1 the last release has not completed
860 #define MC_NOP (0<<5) // No Op
861 #define MC_ALLOC (1<<5) // OR with number of 256 byte packets
862 #define MC_RESET (2<<5) // Reset MMU to initial state
863 #define MC_REMOVE (3<<5) // Remove the current rx packet
864 #define MC_RELEASE (4<<5) // Remove and release the current rx packet
865 #define MC_FREEPKT (5<<5) // Release packet in PNR register
866 #define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
867 #define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
868
869
870 // Packet Number Register
871 /* BANK 2 */
872 #define PN_REG SMC_REG(0x0002, 2)
873
874
875 // Allocation Result Register
876 /* BANK 2 */
877 #define AR_REG SMC_REG(0x0003, 2)
878 #define AR_FAILED 0x80 // Alocation Failed
879
880
881 // TX FIFO Ports Register
882 /* BANK 2 */
883 #define TXFIFO_REG SMC_REG(0x0004, 2)
884 #define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
885
886 // RX FIFO Ports Register
887 /* BANK 2 */
888 #define RXFIFO_REG SMC_REG(0x0005, 2)
889 #define RXFIFO_REMPTY 0x80 // RX FIFO Empty
890
891 #define FIFO_REG SMC_REG(0x0004, 2)
892
893 // Pointer Register
894 /* BANK 2 */
895 #define PTR_REG SMC_REG(0x0006, 2)
896 #define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
897 #define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
898 #define PTR_READ 0x2000 // When 1 the operation is a read
899
900
901 // Data Register
902 /* BANK 2 */
903 #define DATA_REG SMC_REG(0x0008, 2)
904
905
906 // Interrupt Status/Acknowledge Register
907 /* BANK 2 */
908 #define INT_REG SMC_REG(0x000C, 2)
909
910
911 // Interrupt Mask Register
912 /* BANK 2 */
913 #define IM_REG SMC_REG(0x000D, 2)
914 #define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
915 #define IM_ERCV_INT 0x40 // Early Receive Interrupt
916 #define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
917 #define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
918 #define IM_ALLOC_INT 0x08 // Set when allocation request is completed
919 #define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
920 #define IM_TX_INT 0x02 // Transmit Interrupt
921 #define IM_RCV_INT 0x01 // Receive Interrupt
922
923
924 // Multicast Table Registers
925 /* BANK 3 */
926 #define MCAST_REG1 SMC_REG(0x0000, 3)
927 #define MCAST_REG2 SMC_REG(0x0002, 3)
928 #define MCAST_REG3 SMC_REG(0x0004, 3)
929 #define MCAST_REG4 SMC_REG(0x0006, 3)
930
931
932 // Management Interface Register (MII)
933 /* BANK 3 */
934 #define MII_REG SMC_REG(0x0008, 3)
935 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
936 #define MII_MDOE 0x0008 // MII Output Enable
937 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
938 #define MII_MDI 0x0002 // MII Input, pin MDI
939 #define MII_MDO 0x0001 // MII Output, pin MDO
940
941
942 // Revision Register
943 /* BANK 3 */
944 /* ( hi: chip id low: rev # ) */
945 #define REV_REG SMC_REG(0x000A, 3)
946
947
948 // Early RCV Register
949 /* BANK 3 */
950 /* this is NOT on SMC9192 */
951 #define ERCV_REG SMC_REG(0x000C, 3)
952 #define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
953 #define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
954
955
956 // External Register
957 /* BANK 7 */
958 #define EXT_REG SMC_REG(0x0000, 7)
959
960
961 #define CHIP_9192 3
962 #define CHIP_9194 4
963 #define CHIP_9195 5
964 #define CHIP_9196 6
965 #define CHIP_91100 7
966 #define CHIP_91100FD 8
967 #define CHIP_91111FD 9
968
969 static const char * chip_ids[ 16 ] = {
970 NULL, NULL, NULL,
971 /* 3 */ "SMC91C90/91C92",
972 /* 4 */ "SMC91C94",
973 /* 5 */ "SMC91C95",
974 /* 6 */ "SMC91C96",
975 /* 7 */ "SMC91C100",
976 /* 8 */ "SMC91C100FD",
977 /* 9 */ "SMC91C11xFD",
978 NULL, NULL, NULL,
979 NULL, NULL, NULL};
980
981
982 /*
983 . Receive status bits
984 */
985 #define RS_ALGNERR 0x8000
986 #define RS_BRODCAST 0x4000
987 #define RS_BADCRC 0x2000
988 #define RS_ODDFRAME 0x1000
989 #define RS_TOOLONG 0x0800
990 #define RS_TOOSHORT 0x0400
991 #define RS_MULTICAST 0x0001
992 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
993
994
995 /*
996 * PHY IDs
997 * LAN83C183 == LAN91C111 Internal PHY
998 */
999 #define PHY_LAN83C183 0x0016f840
1000 #define PHY_LAN83C180 0x02821c50
1001
1002 /*
1003 * PHY Register Addresses (LAN91C111 Internal PHY)
1004 *
1005 * Generic PHY registers can be found in <linux/mii.h>
1006 *
1007 * These phy registers are specific to our on-board phy.
1008 */
1009
1010 // PHY Configuration Register 1
1011 #define PHY_CFG1_REG 0x10
1012 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
1013 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
1014 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
1015 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
1016 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
1017 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
1018 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
1019 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
1020 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
1021 #define PHY_CFG1_TLVL_MASK 0x003C
1022 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
1023
1024
1025 // PHY Configuration Register 2
1026 #define PHY_CFG2_REG 0x11
1027 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
1028 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
1029 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
1030 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
1031
1032 // PHY Status Output (and Interrupt status) Register
1033 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
1034 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
1035 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
1036 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
1037 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
1038 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
1039 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
1040 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
1041 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
1042 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
1043 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
1044
1045 // PHY Interrupt/Status Mask Register
1046 #define PHY_MASK_REG 0x13 // Interrupt Mask
1047 // Uses the same bit definitions as PHY_INT_REG
1048
1049
1050 /*
1051 * SMC91C96 ethernet config and status registers.
1052 * These are in the "attribute" space.
1053 */
1054 #define ECOR 0x8000
1055 #define ECOR_RESET 0x80
1056 #define ECOR_LEVEL_IRQ 0x40
1057 #define ECOR_WR_ATTRIB 0x04
1058 #define ECOR_ENABLE 0x01
1059
1060 #define ECSR 0x8002
1061 #define ECSR_IOIS8 0x20
1062 #define ECSR_PWRDWN 0x04
1063 #define ECSR_INT 0x02
1064
1065 #define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
1066
1067
1068 /*
1069 * Macros to abstract register access according to the data bus
1070 * capabilities. Please use those and not the in/out primitives.
1071 * Note: the following macros do *not* select the bank -- this must
1072 * be done separately as needed in the main code. The SMC_REG() macro
1073 * only uses the bank argument for debugging purposes (when enabled).
1074 *
1075 * Note: despite inline functions being safer, everything leading to this
1076 * should preferably be macros to let BUG() display the line number in
1077 * the core source code since we're interested in the top call site
1078 * not in any inline function location.
1079 */
1080
1081 #if SMC_DEBUG > 0
1082 #define SMC_REG(reg, bank) \
1083 ({ \
1084 int __b = SMC_CURRENT_BANK(); \
1085 if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
1086 printk( "%s: bank reg screwed (0x%04x)\n", \
1087 CARDNAME, __b ); \
1088 BUG(); \
1089 } \
1090 reg<<SMC_IO_SHIFT; \
1091 })
1092 #else
1093 #define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
1094 #endif
1095
1096 /*
1097 * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
1098 * aligned to a 32 bit boundary. I tell you that does exist!
1099 * Fortunately the affected register accesses can be easily worked around
1100 * since we can write zeroes to the preceeding 16 bits without adverse
1101 * effects and use a 32-bit access.
1102 *
1103 * Enforce it on any 32-bit capable setup for now.
1104 */
1105 #define SMC_MUST_ALIGN_WRITE SMC_CAN_USE_32BIT
1106
1107 #define SMC_GET_PN() \
1108 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, PN_REG)) \
1109 : (SMC_inw(ioaddr, PN_REG) & 0xFF) )
1110
1111 #define SMC_SET_PN(x) \
1112 do { \
1113 if (SMC_MUST_ALIGN_WRITE) \
1114 SMC_outl((x)<<16, ioaddr, SMC_REG(0, 2)); \
1115 else if (SMC_CAN_USE_8BIT) \
1116 SMC_outb(x, ioaddr, PN_REG); \
1117 else \
1118 SMC_outw(x, ioaddr, PN_REG); \
1119 } while (0)
1120
1121 #define SMC_GET_AR() \
1122 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, AR_REG)) \
1123 : (SMC_inw(ioaddr, PN_REG) >> 8) )
1124
1125 #define SMC_GET_TXFIFO() \
1126 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, TXFIFO_REG)) \
1127 : (SMC_inw(ioaddr, TXFIFO_REG) & 0xFF) )
1128
1129 #define SMC_GET_RXFIFO() \
1130 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, RXFIFO_REG)) \
1131 : (SMC_inw(ioaddr, TXFIFO_REG) >> 8) )
1132
1133 #define SMC_GET_INT() \
1134 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, INT_REG)) \
1135 : (SMC_inw(ioaddr, INT_REG) & 0xFF) )
1136
1137 #define SMC_ACK_INT(x) \
1138 do { \
1139 if (SMC_CAN_USE_8BIT) \
1140 SMC_outb(x, ioaddr, INT_REG); \
1141 else { \
1142 unsigned long __flags; \
1143 int __mask; \
1144 local_irq_save(__flags); \
1145 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
1146 SMC_outw( __mask | (x), ioaddr, INT_REG ); \
1147 local_irq_restore(__flags); \
1148 } \
1149 } while (0)
1150
1151 #define SMC_GET_INT_MASK() \
1152 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, IM_REG)) \
1153 : (SMC_inw( ioaddr, INT_REG ) >> 8) )
1154
1155 #define SMC_SET_INT_MASK(x) \
1156 do { \
1157 if (SMC_CAN_USE_8BIT) \
1158 SMC_outb(x, ioaddr, IM_REG); \
1159 else \
1160 SMC_outw((x) << 8, ioaddr, INT_REG); \
1161 } while (0)
1162
1163 #define SMC_CURRENT_BANK() SMC_inw(ioaddr, BANK_SELECT)
1164
1165 #define SMC_SELECT_BANK(x) \
1166 do { \
1167 if (SMC_MUST_ALIGN_WRITE) \
1168 SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
1169 else \
1170 SMC_outw(x, ioaddr, BANK_SELECT); \
1171 } while (0)
1172
1173 #define SMC_GET_BASE() SMC_inw(ioaddr, BASE_REG)
1174
1175 #define SMC_SET_BASE(x) SMC_outw(x, ioaddr, BASE_REG)
1176
1177 #define SMC_GET_CONFIG() SMC_inw(ioaddr, CONFIG_REG)
1178
1179 #define SMC_SET_CONFIG(x) SMC_outw(x, ioaddr, CONFIG_REG)
1180
1181 #define SMC_GET_COUNTER() SMC_inw(ioaddr, COUNTER_REG)
1182
1183 #define SMC_GET_CTL() SMC_inw(ioaddr, CTL_REG)
1184
1185 #define SMC_SET_CTL(x) SMC_outw(x, ioaddr, CTL_REG)
1186
1187 #define SMC_GET_MII() SMC_inw(ioaddr, MII_REG)
1188
1189 #define SMC_SET_MII(x) SMC_outw(x, ioaddr, MII_REG)
1190
1191 #define SMC_GET_MIR() SMC_inw(ioaddr, MIR_REG)
1192
1193 #define SMC_SET_MIR(x) SMC_outw(x, ioaddr, MIR_REG)
1194
1195 #define SMC_GET_MMU_CMD() SMC_inw(ioaddr, MMU_CMD_REG)
1196
1197 #define SMC_SET_MMU_CMD(x) SMC_outw(x, ioaddr, MMU_CMD_REG)
1198
1199 #define SMC_GET_FIFO() SMC_inw(ioaddr, FIFO_REG)
1200
1201 #define SMC_GET_PTR() SMC_inw(ioaddr, PTR_REG)
1202
1203 #define SMC_SET_PTR(x) \
1204 do { \
1205 if (SMC_MUST_ALIGN_WRITE) \
1206 SMC_outl((x)<<16, ioaddr, SMC_REG(4, 2)); \
1207 else \
1208 SMC_outw(x, ioaddr, PTR_REG); \
1209 } while (0)
1210
1211 #define SMC_GET_EPH_STATUS() SMC_inw(ioaddr, EPH_STATUS_REG)
1212
1213 #define SMC_GET_RCR() SMC_inw(ioaddr, RCR_REG)
1214
1215 #define SMC_SET_RCR(x) SMC_outw(x, ioaddr, RCR_REG)
1216
1217 #define SMC_GET_REV() SMC_inw(ioaddr, REV_REG)
1218
1219 #define SMC_GET_RPC() SMC_inw(ioaddr, RPC_REG)
1220
1221 #define SMC_SET_RPC(x) \
1222 do { \
1223 if (SMC_MUST_ALIGN_WRITE) \
1224 SMC_outl((x)<<16, ioaddr, SMC_REG(8, 0)); \
1225 else \
1226 SMC_outw(x, ioaddr, RPC_REG); \
1227 } while (0)
1228
1229 #define SMC_GET_TCR() SMC_inw(ioaddr, TCR_REG)
1230
1231 #define SMC_SET_TCR(x) SMC_outw(x, ioaddr, TCR_REG)
1232
1233 #ifndef SMC_GET_MAC_ADDR
1234 #define SMC_GET_MAC_ADDR(addr) \
1235 do { \
1236 unsigned int __v; \
1237 __v = SMC_inw( ioaddr, ADDR0_REG ); \
1238 addr[0] = __v; addr[1] = __v >> 8; \
1239 __v = SMC_inw( ioaddr, ADDR1_REG ); \
1240 addr[2] = __v; addr[3] = __v >> 8; \
1241 __v = SMC_inw( ioaddr, ADDR2_REG ); \
1242 addr[4] = __v; addr[5] = __v >> 8; \
1243 } while (0)
1244 #endif
1245
1246 #define SMC_SET_MAC_ADDR(addr) \
1247 do { \
1248 SMC_outw( addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG ); \
1249 SMC_outw( addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG ); \
1250 SMC_outw( addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG ); \
1251 } while (0)
1252
1253 #define SMC_SET_MCAST(x) \
1254 do { \
1255 const unsigned char *mt = (x); \
1256 SMC_outw( mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1 ); \
1257 SMC_outw( mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2 ); \
1258 SMC_outw( mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3 ); \
1259 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
1260 } while (0)
1261
1262 #define SMC_PUT_PKT_HDR(status, length) \
1263 do { \
1264 if (SMC_CAN_USE_32BIT) \
1265 SMC_outl((status) | (length)<<16, ioaddr, DATA_REG); \
1266 else { \
1267 SMC_outw(status, ioaddr, DATA_REG); \
1268 SMC_outw(length, ioaddr, DATA_REG); \
1269 } \
1270 } while (0)
1271
1272 #define SMC_GET_PKT_HDR(status, length) \
1273 do { \
1274 if (SMC_CAN_USE_32BIT) { \
1275 unsigned int __val = SMC_inl(ioaddr, DATA_REG); \
1276 (status) = __val & 0xffff; \
1277 (length) = __val >> 16; \
1278 } else { \
1279 (status) = SMC_inw(ioaddr, DATA_REG); \
1280 (length) = SMC_inw(ioaddr, DATA_REG); \
1281 } \
1282 } while (0)
1283
1284 #define SMC_PUSH_DATA(p, l) \
1285 do { \
1286 if (SMC_CAN_USE_32BIT) { \
1287 void *__ptr = (p); \
1288 int __len = (l); \
1289 void __iomem *__ioaddr = ioaddr; \
1290 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1291 __len -= 2; \
1292 SMC_outw(*(u16 *)__ptr, ioaddr, DATA_REG); \
1293 __ptr += 2; \
1294 } \
1295 if (SMC_CAN_USE_DATACS && lp->datacs) \
1296 __ioaddr = lp->datacs; \
1297 SMC_outsl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1298 if (__len & 2) { \
1299 __ptr += (__len & ~3); \
1300 SMC_outw(*((u16 *)__ptr), ioaddr, DATA_REG); \
1301 } \
1302 } else if (SMC_CAN_USE_16BIT) \
1303 SMC_outsw(ioaddr, DATA_REG, p, (l) >> 1); \
1304 else if (SMC_CAN_USE_8BIT) \
1305 SMC_outsb(ioaddr, DATA_REG, p, l); \
1306 } while (0)
1307
1308 #define SMC_PULL_DATA(p, l) \
1309 do { \
1310 if (SMC_CAN_USE_32BIT) { \
1311 void *__ptr = (p); \
1312 int __len = (l); \
1313 void __iomem *__ioaddr = ioaddr; \
1314 if ((unsigned long)__ptr & 2) { \
1315 /* \
1316 * We want 32bit alignment here. \
1317 * Since some buses perform a full \
1318 * 32bit fetch even for 16bit data \
1319 * we can't use SMC_inw() here. \
1320 * Back both source (on-chip) and \
1321 * destination pointers of 2 bytes. \
1322 * This is possible since the call to \
1323 * SMC_GET_PKT_HDR() already advanced \
1324 * the source pointer of 4 bytes, and \
1325 * the skb_reserve(skb, 2) advanced \
1326 * the destination pointer of 2 bytes. \
1327 */ \
1328 __ptr -= 2; \
1329 __len += 2; \
1330 SMC_SET_PTR(2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
1331 } \
1332 if (SMC_CAN_USE_DATACS && lp->datacs) \
1333 __ioaddr = lp->datacs; \
1334 __len += 2; \
1335 SMC_insl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1336 } else if (SMC_CAN_USE_16BIT) \
1337 SMC_insw(ioaddr, DATA_REG, p, (l) >> 1); \
1338 else if (SMC_CAN_USE_8BIT) \
1339 SMC_insb(ioaddr, DATA_REG, p, l); \
1340 } while (0)
1341
1342 #endif /* _SMC91X_H_ */
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