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dm snapshot: permit invalid activation
[linux-2.6/mini2440.git] / drivers / net / smc91x.h
blobf8429449dc1ebf0e28a3de7e7184f72dbca38f8f
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_BFIN)
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_ARCH_OMAP)
228
229 /* We can only do 16-bit reads and writes in the static memory space. */
230 #define SMC_CAN_USE_8BIT 0
231 #define SMC_CAN_USE_16BIT 1
232 #define SMC_CAN_USE_32BIT 0
233 #define SMC_IO_SHIFT 0
234 #define SMC_NOWAIT 1
235
236 #define SMC_inw(a, r) readw((a) + (r))
237 #define SMC_outw(v, a, r) writew(v, (a) + (r))
238 #define SMC_insw(a, r, p, l) readsw((a) + (r), p, l)
239 #define SMC_outsw(a, r, p, l) writesw((a) + (r), p, l)
240
241 #include <asm/mach-types.h>
242 #include <asm/arch/cpu.h>
243
244 #define SMC_IRQ_FLAGS (( \
245 machine_is_omap_h2() \
246 || machine_is_omap_h3() \
247 || machine_is_omap_h4() \
248 || (machine_is_omap_innovator() && !cpu_is_omap1510()) \
249 ) ? IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING)
250
251
252 #elif defined(CONFIG_SH_SH4202_MICRODEV)
253
254 #define SMC_CAN_USE_8BIT 0
255 #define SMC_CAN_USE_16BIT 1
256 #define SMC_CAN_USE_32BIT 0
257
258 #define SMC_inb(a, r) inb((a) + (r) - 0xa0000000)
259 #define SMC_inw(a, r) inw((a) + (r) - 0xa0000000)
260 #define SMC_inl(a, r) inl((a) + (r) - 0xa0000000)
261 #define SMC_outb(v, a, r) outb(v, (a) + (r) - 0xa0000000)
262 #define SMC_outw(v, a, r) outw(v, (a) + (r) - 0xa0000000)
263 #define SMC_outl(v, a, r) outl(v, (a) + (r) - 0xa0000000)
264 #define SMC_insl(a, r, p, l) insl((a) + (r) - 0xa0000000, p, l)
265 #define SMC_outsl(a, r, p, l) outsl((a) + (r) - 0xa0000000, p, l)
266 #define SMC_insw(a, r, p, l) insw((a) + (r) - 0xa0000000, p, l)
267 #define SMC_outsw(a, r, p, l) outsw((a) + (r) - 0xa0000000, p, l)
268
269 #define SMC_IRQ_FLAGS (0)
270
271 #elif defined(CONFIG_ISA)
272
273 #define SMC_CAN_USE_8BIT 1
274 #define SMC_CAN_USE_16BIT 1
275 #define SMC_CAN_USE_32BIT 0
276
277 #define SMC_inb(a, r) inb((a) + (r))
278 #define SMC_inw(a, r) inw((a) + (r))
279 #define SMC_outb(v, a, r) outb(v, (a) + (r))
280 #define SMC_outw(v, a, r) outw(v, (a) + (r))
281 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
282 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
283
284 #elif defined(CONFIG_SUPERH)
285
286 #ifdef CONFIG_SOLUTION_ENGINE
287 #define SMC_CAN_USE_8BIT 0
288 #define SMC_CAN_USE_16BIT 1
289 #define SMC_CAN_USE_32BIT 0
290 #define SMC_IO_SHIFT 0
291 #define SMC_NOWAIT 1
292
293 #define SMC_inw(a, r) inw((a) + (r))
294 #define SMC_outw(v, a, r) outw(v, (a) + (r))
295 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
296 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
297
298 #else /* BOARDS */
299
300 #define SMC_CAN_USE_8BIT 1
301 #define SMC_CAN_USE_16BIT 1
302 #define SMC_CAN_USE_32BIT 1
303
304 #define SMC_inb(a, r) inb((a) + (r))
305 #define SMC_inw(a, r) inw((a) + (r))
306 #define SMC_outb(v, a, r) outb(v, (a) + (r))
307 #define SMC_outw(v, a, r) outw(v, (a) + (r))
308 #define SMC_insw(a, r, p, l) insw((a) + (r), p, l)
309 #define SMC_outsw(a, r, p, l) outsw((a) + (r), p, l)
310
311 #endif /* BOARDS */
312
313 #define set_irq_type(irq, type) do {} while (0)
314
315 #elif defined(CONFIG_M32R)
316
317 #define SMC_CAN_USE_8BIT 0
318 #define SMC_CAN_USE_16BIT 1
319 #define SMC_CAN_USE_32BIT 0
320
321 #define SMC_inb(a, r) inb(((u32)a) + (r))
322 #define SMC_inw(a, r) inw(((u32)a) + (r))
323 #define SMC_outb(v, a, r) outb(v, ((u32)a) + (r))
324 #define SMC_outw(v, a, r) outw(v, ((u32)a) + (r))
325 #define SMC_insw(a, r, p, l) insw(((u32)a) + (r), p, l)
326 #define SMC_outsw(a, r, p, l) outsw(((u32)a) + (r), p, l)
327
328 #define SMC_IRQ_FLAGS (0)
329
330 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
331 #define RPC_LSB_DEFAULT RPC_LED_100_10
332
333 #elif defined(CONFIG_MACH_LPD79520) \
334 || defined(CONFIG_MACH_LPD7A400) \
335 || defined(CONFIG_MACH_LPD7A404)
336
337 /* The LPD7X_IOBARRIER is necessary to overcome a mismatch between the
338 * way that the CPU handles chip selects and the way that the SMC chip
339 * expects the chip select to operate. Refer to
340 * Documentation/arm/Sharp-LH/IOBarrier for details. The read from
341 * IOBARRIER is a byte, in order that we read the least-common
342 * denominator. It would be wasteful to read 32 bits from an 8-bit
343 * accessible region.
344 *
345 * There is no explicit protection against interrupts intervening
346 * between the writew and the IOBARRIER. In SMC ISR there is a
347 * preamble that performs an IOBARRIER in the extremely unlikely event
348 * that the driver interrupts itself between a writew to the chip an
349 * the IOBARRIER that follows *and* the cache is large enough that the
350 * first off-chip access while handing the interrupt is to the SMC
351 * chip. Other devices in the same address space as the SMC chip must
352 * be aware of the potential for trouble and perform a similar
353 * IOBARRIER on entry to their ISR.
354 */
355
356 #include <asm/arch/constants.h> /* IOBARRIER_VIRT */
357
358 #define SMC_CAN_USE_8BIT 0
359 #define SMC_CAN_USE_16BIT 1
360 #define SMC_CAN_USE_32BIT 0
361 #define SMC_NOWAIT 0
362 #define LPD7X_IOBARRIER readb (IOBARRIER_VIRT)
363
364 #define SMC_inw(a,r)\
365 ({ unsigned short v = readw ((void*) ((a) + (r))); LPD7X_IOBARRIER; v; })
366 #define SMC_outw(v,a,r) ({ writew ((v), (a) + (r)); LPD7X_IOBARRIER; })
367
368 #define SMC_insw LPD7_SMC_insw
369 static inline void LPD7_SMC_insw (unsigned char* a, int r,
370 unsigned char* p, int l)
371 {
372 unsigned short* ps = (unsigned short*) p;
373 while (l-- > 0) {
374 *ps++ = readw (a + r);
375 LPD7X_IOBARRIER;
376 }
377 }
378
379 #define SMC_outsw LPD7_SMC_outsw
380 static inline void LPD7_SMC_outsw (unsigned char* a, int r,
381 unsigned char* p, int l)
382 {
383 unsigned short* ps = (unsigned short*) p;
384 while (l-- > 0) {
385 writew (*ps++, a + r);
386 LPD7X_IOBARRIER;
387 }
388 }
389
390 #define SMC_INTERRUPT_PREAMBLE LPD7X_IOBARRIER
391
392 #define RPC_LSA_DEFAULT RPC_LED_TX_RX
393 #define RPC_LSB_DEFAULT RPC_LED_100_10
394
395 #elif defined(CONFIG_SOC_AU1X00)
396
397 #include <au1xxx.h>
398
399 /* We can only do 16-bit reads and writes in the static memory space. */
400 #define SMC_CAN_USE_8BIT 0
401 #define SMC_CAN_USE_16BIT 1
402 #define SMC_CAN_USE_32BIT 0
403 #define SMC_IO_SHIFT 0
404 #define SMC_NOWAIT 1
405
406 #define SMC_inw(a, r) au_readw((unsigned long)((a) + (r)))
407 #define SMC_insw(a, r, p, l) \
408 do { \
409 unsigned long _a = (unsigned long)((a) + (r)); \
410 int _l = (l); \
411 u16 *_p = (u16 *)(p); \
412 while (_l-- > 0) \
413 *_p++ = au_readw(_a); \
414 } while(0)
415 #define SMC_outw(v, a, r) au_writew(v, (unsigned long)((a) + (r)))
416 #define SMC_outsw(a, r, p, l) \
417 do { \
418 unsigned long _a = (unsigned long)((a) + (r)); \
419 int _l = (l); \
420 const u16 *_p = (const u16 *)(p); \
421 while (_l-- > 0) \
422 au_writew(*_p++ , _a); \
423 } while(0)
424
425 #define SMC_IRQ_FLAGS (0)
426
427 #elif defined(CONFIG_ARCH_VERSATILE)
428
429 #define SMC_CAN_USE_8BIT 1
430 #define SMC_CAN_USE_16BIT 1
431 #define SMC_CAN_USE_32BIT 1
432 #define SMC_NOWAIT 1
433
434 #define SMC_inb(a, r) readb((a) + (r))
435 #define SMC_inw(a, r) readw((a) + (r))
436 #define SMC_inl(a, r) readl((a) + (r))
437 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
438 #define SMC_outw(v, a, r) writew(v, (a) + (r))
439 #define SMC_outl(v, a, r) writel(v, (a) + (r))
440 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
441 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
442
443 #define SMC_IRQ_FLAGS (0)
444
445 #else
446
447 #define SMC_CAN_USE_8BIT 1
448 #define SMC_CAN_USE_16BIT 1
449 #define SMC_CAN_USE_32BIT 1
450 #define SMC_NOWAIT 1
451
452 #define SMC_inb(a, r) readb((a) + (r))
453 #define SMC_inw(a, r) readw((a) + (r))
454 #define SMC_inl(a, r) readl((a) + (r))
455 #define SMC_outb(v, a, r) writeb(v, (a) + (r))
456 #define SMC_outw(v, a, r) writew(v, (a) + (r))
457 #define SMC_outl(v, a, r) writel(v, (a) + (r))
458 #define SMC_insl(a, r, p, l) readsl((a) + (r), p, l)
459 #define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l)
460
461 #define RPC_LSA_DEFAULT RPC_LED_100_10
462 #define RPC_LSB_DEFAULT RPC_LED_TX_RX
463
464 #endif
465
466 #ifdef SMC_USE_PXA_DMA
467 /*
468 * Let's use the DMA engine on the XScale PXA2xx for RX packets. This is
469 * always happening in irq context so no need to worry about races. TX is
470 * different and probably not worth it for that reason, and not as critical
471 * as RX which can overrun memory and lose packets.
472 */
473 #include <linux/dma-mapping.h>
474 #include <asm/dma.h>
475 #include <asm/arch/pxa-regs.h>
476
477 #ifdef SMC_insl
478 #undef SMC_insl
479 #define SMC_insl(a, r, p, l) \
480 smc_pxa_dma_insl(a, lp->physaddr, r, dev->dma, p, l)
481 static inline void
482 smc_pxa_dma_insl(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
483 u_char *buf, int len)
484 {
485 dma_addr_t dmabuf;
486
487 /* fallback if no DMA available */
488 if (dma == (unsigned char)-1) {
489 readsl(ioaddr + reg, buf, len);
490 return;
491 }
492
493 /* 64 bit alignment is required for memory to memory DMA */
494 if ((long)buf & 4) {
495 *((u32 *)buf) = SMC_inl(ioaddr, reg);
496 buf += 4;
497 len--;
498 }
499
500 len *= 4;
501 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
502 DCSR(dma) = DCSR_NODESC;
503 DTADR(dma) = dmabuf;
504 DSADR(dma) = physaddr + reg;
505 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
506 DCMD_WIDTH4 | (DCMD_LENGTH & len));
507 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
508 while (!(DCSR(dma) & DCSR_STOPSTATE))
509 cpu_relax();
510 DCSR(dma) = 0;
511 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
512 }
513 #endif
514
515 #ifdef SMC_insw
516 #undef SMC_insw
517 #define SMC_insw(a, r, p, l) \
518 smc_pxa_dma_insw(a, lp->physaddr, r, dev->dma, p, l)
519 static inline void
520 smc_pxa_dma_insw(void __iomem *ioaddr, u_long physaddr, int reg, int dma,
521 u_char *buf, int len)
522 {
523 dma_addr_t dmabuf;
524
525 /* fallback if no DMA available */
526 if (dma == (unsigned char)-1) {
527 readsw(ioaddr + reg, buf, len);
528 return;
529 }
530
531 /* 64 bit alignment is required for memory to memory DMA */
532 while ((long)buf & 6) {
533 *((u16 *)buf) = SMC_inw(ioaddr, reg);
534 buf += 2;
535 len--;
536 }
537
538 len *= 2;
539 dmabuf = dma_map_single(NULL, buf, len, DMA_FROM_DEVICE);
540 DCSR(dma) = DCSR_NODESC;
541 DTADR(dma) = dmabuf;
542 DSADR(dma) = physaddr + reg;
543 DCMD(dma) = (DCMD_INCTRGADDR | DCMD_BURST32 |
544 DCMD_WIDTH2 | (DCMD_LENGTH & len));
545 DCSR(dma) = DCSR_NODESC | DCSR_RUN;
546 while (!(DCSR(dma) & DCSR_STOPSTATE))
547 cpu_relax();
548 DCSR(dma) = 0;
549 dma_unmap_single(NULL, dmabuf, len, DMA_FROM_DEVICE);
550 }
551 #endif
552
553 static void
554 smc_pxa_dma_irq(int dma, void *dummy)
555 {
556 DCSR(dma) = 0;
557 }
558 #endif /* SMC_USE_PXA_DMA */
559
560
561 /*
562 * Everything a particular hardware setup needs should have been defined
563 * at this point. Add stubs for the undefined cases, mainly to avoid
564 * compilation warnings since they'll be optimized away, or to prevent buggy
565 * use of them.
566 */
567
568 #if ! SMC_CAN_USE_32BIT
569 #define SMC_inl(ioaddr, reg) ({ BUG(); 0; })
570 #define SMC_outl(x, ioaddr, reg) BUG()
571 #define SMC_insl(a, r, p, l) BUG()
572 #define SMC_outsl(a, r, p, l) BUG()
573 #endif
574
575 #if !defined(SMC_insl) || !defined(SMC_outsl)
576 #define SMC_insl(a, r, p, l) BUG()
577 #define SMC_outsl(a, r, p, l) BUG()
578 #endif
579
580 #if ! SMC_CAN_USE_16BIT
581
582 /*
583 * Any 16-bit access is performed with two 8-bit accesses if the hardware
584 * can't do it directly. Most registers are 16-bit so those are mandatory.
585 */
586 #define SMC_outw(x, ioaddr, reg) \
587 do { \
588 unsigned int __val16 = (x); \
589 SMC_outb( __val16, ioaddr, reg ); \
590 SMC_outb( __val16 >> 8, ioaddr, reg + (1 << SMC_IO_SHIFT));\
591 } while (0)
592 #define SMC_inw(ioaddr, reg) \
593 ({ \
594 unsigned int __val16; \
595 __val16 = SMC_inb( ioaddr, reg ); \
596 __val16 |= SMC_inb( ioaddr, reg + (1 << SMC_IO_SHIFT)) << 8; \
597 __val16; \
598 })
599
600 #define SMC_insw(a, r, p, l) BUG()
601 #define SMC_outsw(a, r, p, l) BUG()
602
603 #endif
604
605 #if !defined(SMC_insw) || !defined(SMC_outsw)
606 #define SMC_insw(a, r, p, l) BUG()
607 #define SMC_outsw(a, r, p, l) BUG()
608 #endif
609
610 #if ! SMC_CAN_USE_8BIT
611 #define SMC_inb(ioaddr, reg) ({ BUG(); 0; })
612 #define SMC_outb(x, ioaddr, reg) BUG()
613 #define SMC_insb(a, r, p, l) BUG()
614 #define SMC_outsb(a, r, p, l) BUG()
615 #endif
616
617 #if !defined(SMC_insb) || !defined(SMC_outsb)
618 #define SMC_insb(a, r, p, l) BUG()
619 #define SMC_outsb(a, r, p, l) BUG()
620 #endif
621
622 #ifndef SMC_CAN_USE_DATACS
623 #define SMC_CAN_USE_DATACS 0
624 #endif
625
626 #ifndef SMC_IO_SHIFT
627 #define SMC_IO_SHIFT 0
628 #endif
629
630 #ifndef SMC_IRQ_FLAGS
631 #define SMC_IRQ_FLAGS IRQF_TRIGGER_RISING
632 #endif
633
634 #ifndef SMC_INTERRUPT_PREAMBLE
635 #define SMC_INTERRUPT_PREAMBLE
636 #endif
637
638
639 /* Because of bank switching, the LAN91x uses only 16 I/O ports */
640 #define SMC_IO_EXTENT (16 << SMC_IO_SHIFT)
641 #define SMC_DATA_EXTENT (4)
642
643 /*
644 . Bank Select Register:
645 .
646 . yyyy yyyy 0000 00xx
647 . xx = bank number
648 . yyyy yyyy = 0x33, for identification purposes.
649 */
650 #define BANK_SELECT (14 << SMC_IO_SHIFT)
651
652
653 // Transmit Control Register
654 /* BANK 0 */
655 #define TCR_REG SMC_REG(0x0000, 0)
656 #define TCR_ENABLE 0x0001 // When 1 we can transmit
657 #define TCR_LOOP 0x0002 // Controls output pin LBK
658 #define TCR_FORCOL 0x0004 // When 1 will force a collision
659 #define TCR_PAD_EN 0x0080 // When 1 will pad tx frames < 64 bytes w/0
660 #define TCR_NOCRC 0x0100 // When 1 will not append CRC to tx frames
661 #define TCR_MON_CSN 0x0400 // When 1 tx monitors carrier
662 #define TCR_FDUPLX 0x0800 // When 1 enables full duplex operation
663 #define TCR_STP_SQET 0x1000 // When 1 stops tx if Signal Quality Error
664 #define TCR_EPH_LOOP 0x2000 // When 1 enables EPH block loopback
665 #define TCR_SWFDUP 0x8000 // When 1 enables Switched Full Duplex mode
666
667 #define TCR_CLEAR 0 /* do NOTHING */
668 /* the default settings for the TCR register : */
669 #define TCR_DEFAULT (TCR_ENABLE | TCR_PAD_EN)
670
671
672 // EPH Status Register
673 /* BANK 0 */
674 #define EPH_STATUS_REG SMC_REG(0x0002, 0)
675 #define ES_TX_SUC 0x0001 // Last TX was successful
676 #define ES_SNGL_COL 0x0002 // Single collision detected for last tx
677 #define ES_MUL_COL 0x0004 // Multiple collisions detected for last tx
678 #define ES_LTX_MULT 0x0008 // Last tx was a multicast
679 #define ES_16COL 0x0010 // 16 Collisions Reached
680 #define ES_SQET 0x0020 // Signal Quality Error Test
681 #define ES_LTXBRD 0x0040 // Last tx was a broadcast
682 #define ES_TXDEFR 0x0080 // Transmit Deferred
683 #define ES_LATCOL 0x0200 // Late collision detected on last tx
684 #define ES_LOSTCARR 0x0400 // Lost Carrier Sense
685 #define ES_EXC_DEF 0x0800 // Excessive Deferral
686 #define ES_CTR_ROL 0x1000 // Counter Roll Over indication
687 #define ES_LINK_OK 0x4000 // Driven by inverted value of nLNK pin
688 #define ES_TXUNRN 0x8000 // Tx Underrun
689
690
691 // Receive Control Register
692 /* BANK 0 */
693 #define RCR_REG SMC_REG(0x0004, 0)
694 #define RCR_RX_ABORT 0x0001 // Set if a rx frame was aborted
695 #define RCR_PRMS 0x0002 // Enable promiscuous mode
696 #define RCR_ALMUL 0x0004 // When set accepts all multicast frames
697 #define RCR_RXEN 0x0100 // IFF this is set, we can receive packets
698 #define RCR_STRIP_CRC 0x0200 // When set strips CRC from rx packets
699 #define RCR_ABORT_ENB 0x0200 // When set will abort rx on collision
700 #define RCR_FILT_CAR 0x0400 // When set filters leading 12 bit s of carrier
701 #define RCR_SOFTRST 0x8000 // resets the chip
702
703 /* the normal settings for the RCR register : */
704 #define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN)
705 #define RCR_CLEAR 0x0 // set it to a base state
706
707
708 // Counter Register
709 /* BANK 0 */
710 #define COUNTER_REG SMC_REG(0x0006, 0)
711
712
713 // Memory Information Register
714 /* BANK 0 */
715 #define MIR_REG SMC_REG(0x0008, 0)
716
717
718 // Receive/Phy Control Register
719 /* BANK 0 */
720 #define RPC_REG SMC_REG(0x000A, 0)
721 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
722 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
723 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
724 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
725 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
726 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
727 #define RPC_LED_RES (0x01) // LED = Reserved
728 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
729 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
730 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
731 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
732 #define RPC_LED_TX (0x06) // LED = TX packet occurred
733 #define RPC_LED_RX (0x07) // LED = RX packet occurred
734
735 #ifndef RPC_LSA_DEFAULT
736 #define RPC_LSA_DEFAULT RPC_LED_100
737 #endif
738 #ifndef RPC_LSB_DEFAULT
739 #define RPC_LSB_DEFAULT RPC_LED_FD
740 #endif
741
742 #define RPC_DEFAULT (RPC_ANEG | (RPC_LSA_DEFAULT << RPC_LSXA_SHFT) | (RPC_LSB_DEFAULT << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
743
744
745 /* Bank 0 0x0C is reserved */
746
747 // Bank Select Register
748 /* All Banks */
749 #define BSR_REG 0x000E
750
751
752 // Configuration Reg
753 /* BANK 1 */
754 #define CONFIG_REG SMC_REG(0x0000, 1)
755 #define CONFIG_EXT_PHY 0x0200 // 1=external MII, 0=internal Phy
756 #define CONFIG_GPCNTRL 0x0400 // Inverse value drives pin nCNTRL
757 #define CONFIG_NO_WAIT 0x1000 // When 1 no extra wait states on ISA bus
758 #define CONFIG_EPH_POWER_EN 0x8000 // When 0 EPH is placed into low power mode.
759
760 // Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low
761 #define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN)
762
763
764 // Base Address Register
765 /* BANK 1 */
766 #define BASE_REG SMC_REG(0x0002, 1)
767
768
769 // Individual Address Registers
770 /* BANK 1 */
771 #define ADDR0_REG SMC_REG(0x0004, 1)
772 #define ADDR1_REG SMC_REG(0x0006, 1)
773 #define ADDR2_REG SMC_REG(0x0008, 1)
774
775
776 // General Purpose Register
777 /* BANK 1 */
778 #define GP_REG SMC_REG(0x000A, 1)
779
780
781 // Control Register
782 /* BANK 1 */
783 #define CTL_REG SMC_REG(0x000C, 1)
784 #define CTL_RCV_BAD 0x4000 // When 1 bad CRC packets are received
785 #define CTL_AUTO_RELEASE 0x0800 // When 1 tx pages are released automatically
786 #define CTL_LE_ENABLE 0x0080 // When 1 enables Link Error interrupt
787 #define CTL_CR_ENABLE 0x0040 // When 1 enables Counter Rollover interrupt
788 #define CTL_TE_ENABLE 0x0020 // When 1 enables Transmit Error interrupt
789 #define CTL_EEPROM_SELECT 0x0004 // Controls EEPROM reload & store
790 #define CTL_RELOAD 0x0002 // When set reads EEPROM into registers
791 #define CTL_STORE 0x0001 // When set stores registers into EEPROM
792
793
794 // MMU Command Register
795 /* BANK 2 */
796 #define MMU_CMD_REG SMC_REG(0x0000, 2)
797 #define MC_BUSY 1 // When 1 the last release has not completed
798 #define MC_NOP (0<<5) // No Op
799 #define MC_ALLOC (1<<5) // OR with number of 256 byte packets
800 #define MC_RESET (2<<5) // Reset MMU to initial state
801 #define MC_REMOVE (3<<5) // Remove the current rx packet
802 #define MC_RELEASE (4<<5) // Remove and release the current rx packet
803 #define MC_FREEPKT (5<<5) // Release packet in PNR register
804 #define MC_ENQUEUE (6<<5) // Enqueue the packet for transmit
805 #define MC_RSTTXFIFO (7<<5) // Reset the TX FIFOs
806
807
808 // Packet Number Register
809 /* BANK 2 */
810 #define PN_REG SMC_REG(0x0002, 2)
811
812
813 // Allocation Result Register
814 /* BANK 2 */
815 #define AR_REG SMC_REG(0x0003, 2)
816 #define AR_FAILED 0x80 // Alocation Failed
817
818
819 // TX FIFO Ports Register
820 /* BANK 2 */
821 #define TXFIFO_REG SMC_REG(0x0004, 2)
822 #define TXFIFO_TEMPTY 0x80 // TX FIFO Empty
823
824 // RX FIFO Ports Register
825 /* BANK 2 */
826 #define RXFIFO_REG SMC_REG(0x0005, 2)
827 #define RXFIFO_REMPTY 0x80 // RX FIFO Empty
828
829 #define FIFO_REG SMC_REG(0x0004, 2)
830
831 // Pointer Register
832 /* BANK 2 */
833 #define PTR_REG SMC_REG(0x0006, 2)
834 #define PTR_RCV 0x8000 // 1=Receive area, 0=Transmit area
835 #define PTR_AUTOINC 0x4000 // Auto increment the pointer on each access
836 #define PTR_READ 0x2000 // When 1 the operation is a read
837
838
839 // Data Register
840 /* BANK 2 */
841 #define DATA_REG SMC_REG(0x0008, 2)
842
843
844 // Interrupt Status/Acknowledge Register
845 /* BANK 2 */
846 #define INT_REG SMC_REG(0x000C, 2)
847
848
849 // Interrupt Mask Register
850 /* BANK 2 */
851 #define IM_REG SMC_REG(0x000D, 2)
852 #define IM_MDINT 0x80 // PHY MI Register 18 Interrupt
853 #define IM_ERCV_INT 0x40 // Early Receive Interrupt
854 #define IM_EPH_INT 0x20 // Set by Ethernet Protocol Handler section
855 #define IM_RX_OVRN_INT 0x10 // Set by Receiver Overruns
856 #define IM_ALLOC_INT 0x08 // Set when allocation request is completed
857 #define IM_TX_EMPTY_INT 0x04 // Set if the TX FIFO goes empty
858 #define IM_TX_INT 0x02 // Transmit Interrupt
859 #define IM_RCV_INT 0x01 // Receive Interrupt
860
861
862 // Multicast Table Registers
863 /* BANK 3 */
864 #define MCAST_REG1 SMC_REG(0x0000, 3)
865 #define MCAST_REG2 SMC_REG(0x0002, 3)
866 #define MCAST_REG3 SMC_REG(0x0004, 3)
867 #define MCAST_REG4 SMC_REG(0x0006, 3)
868
869
870 // Management Interface Register (MII)
871 /* BANK 3 */
872 #define MII_REG SMC_REG(0x0008, 3)
873 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
874 #define MII_MDOE 0x0008 // MII Output Enable
875 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
876 #define MII_MDI 0x0002 // MII Input, pin MDI
877 #define MII_MDO 0x0001 // MII Output, pin MDO
878
879
880 // Revision Register
881 /* BANK 3 */
882 /* ( hi: chip id low: rev # ) */
883 #define REV_REG SMC_REG(0x000A, 3)
884
885
886 // Early RCV Register
887 /* BANK 3 */
888 /* this is NOT on SMC9192 */
889 #define ERCV_REG SMC_REG(0x000C, 3)
890 #define ERCV_RCV_DISCRD 0x0080 // When 1 discards a packet being received
891 #define ERCV_THRESHOLD 0x001F // ERCV Threshold Mask
892
893
894 // External Register
895 /* BANK 7 */
896 #define EXT_REG SMC_REG(0x0000, 7)
897
898
899 #define CHIP_9192 3
900 #define CHIP_9194 4
901 #define CHIP_9195 5
902 #define CHIP_9196 6
903 #define CHIP_91100 7
904 #define CHIP_91100FD 8
905 #define CHIP_91111FD 9
906
907 static const char * chip_ids[ 16 ] = {
908 NULL, NULL, NULL,
909 /* 3 */ "SMC91C90/91C92",
910 /* 4 */ "SMC91C94",
911 /* 5 */ "SMC91C95",
912 /* 6 */ "SMC91C96",
913 /* 7 */ "SMC91C100",
914 /* 8 */ "SMC91C100FD",
915 /* 9 */ "SMC91C11xFD",
916 NULL, NULL, NULL,
917 NULL, NULL, NULL};
918
919
920 /*
921 . Receive status bits
922 */
923 #define RS_ALGNERR 0x8000
924 #define RS_BRODCAST 0x4000
925 #define RS_BADCRC 0x2000
926 #define RS_ODDFRAME 0x1000
927 #define RS_TOOLONG 0x0800
928 #define RS_TOOSHORT 0x0400
929 #define RS_MULTICAST 0x0001
930 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
931
932
933 /*
934 * PHY IDs
935 * LAN83C183 == LAN91C111 Internal PHY
936 */
937 #define PHY_LAN83C183 0x0016f840
938 #define PHY_LAN83C180 0x02821c50
939
940 /*
941 * PHY Register Addresses (LAN91C111 Internal PHY)
942 *
943 * Generic PHY registers can be found in <linux/mii.h>
944 *
945 * These phy registers are specific to our on-board phy.
946 */
947
948 // PHY Configuration Register 1
949 #define PHY_CFG1_REG 0x10
950 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
951 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
952 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
953 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
954 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
955 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
956 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
957 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
958 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
959 #define PHY_CFG1_TLVL_MASK 0x003C
960 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
961
962
963 // PHY Configuration Register 2
964 #define PHY_CFG2_REG 0x11
965 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
966 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
967 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
968 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
969
970 // PHY Status Output (and Interrupt status) Register
971 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
972 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
973 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
974 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
975 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
976 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
977 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
978 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
979 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
980 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
981 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
982
983 // PHY Interrupt/Status Mask Register
984 #define PHY_MASK_REG 0x13 // Interrupt Mask
985 // Uses the same bit definitions as PHY_INT_REG
986
987
988 /*
989 * SMC91C96 ethernet config and status registers.
990 * These are in the "attribute" space.
991 */
992 #define ECOR 0x8000
993 #define ECOR_RESET 0x80
994 #define ECOR_LEVEL_IRQ 0x40
995 #define ECOR_WR_ATTRIB 0x04
996 #define ECOR_ENABLE 0x01
997
998 #define ECSR 0x8002
999 #define ECSR_IOIS8 0x20
1000 #define ECSR_PWRDWN 0x04
1001 #define ECSR_INT 0x02
1002
1003 #define ATTRIB_SIZE ((64*1024) << SMC_IO_SHIFT)
1004
1005
1006 /*
1007 * Macros to abstract register access according to the data bus
1008 * capabilities. Please use those and not the in/out primitives.
1009 * Note: the following macros do *not* select the bank -- this must
1010 * be done separately as needed in the main code. The SMC_REG() macro
1011 * only uses the bank argument for debugging purposes (when enabled).
1012 *
1013 * Note: despite inline functions being safer, everything leading to this
1014 * should preferably be macros to let BUG() display the line number in
1015 * the core source code since we're interested in the top call site
1016 * not in any inline function location.
1017 */
1018
1019 #if SMC_DEBUG > 0
1020 #define SMC_REG(reg, bank) \
1021 ({ \
1022 int __b = SMC_CURRENT_BANK(); \
1023 if (unlikely((__b & ~0xf0) != (0x3300 | bank))) { \
1024 printk( "%s: bank reg screwed (0x%04x)\n", \
1025 CARDNAME, __b ); \
1026 BUG(); \
1027 } \
1028 reg<<SMC_IO_SHIFT; \
1029 })
1030 #else
1031 #define SMC_REG(reg, bank) (reg<<SMC_IO_SHIFT)
1032 #endif
1033
1034 /*
1035 * Hack Alert: Some setups just can't write 8 or 16 bits reliably when not
1036 * aligned to a 32 bit boundary. I tell you that does exist!
1037 * Fortunately the affected register accesses can be easily worked around
1038 * since we can write zeroes to the preceeding 16 bits without adverse
1039 * effects and use a 32-bit access.
1040 *
1041 * Enforce it on any 32-bit capable setup for now.
1042 */
1043 #define SMC_MUST_ALIGN_WRITE SMC_CAN_USE_32BIT
1044
1045 #define SMC_GET_PN() \
1046 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, PN_REG)) \
1047 : (SMC_inw(ioaddr, PN_REG) & 0xFF) )
1048
1049 #define SMC_SET_PN(x) \
1050 do { \
1051 if (SMC_MUST_ALIGN_WRITE) \
1052 SMC_outl((x)<<16, ioaddr, SMC_REG(0, 2)); \
1053 else if (SMC_CAN_USE_8BIT) \
1054 SMC_outb(x, ioaddr, PN_REG); \
1055 else \
1056 SMC_outw(x, ioaddr, PN_REG); \
1057 } while (0)
1058
1059 #define SMC_GET_AR() \
1060 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, AR_REG)) \
1061 : (SMC_inw(ioaddr, PN_REG) >> 8) )
1062
1063 #define SMC_GET_TXFIFO() \
1064 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, TXFIFO_REG)) \
1065 : (SMC_inw(ioaddr, TXFIFO_REG) & 0xFF) )
1066
1067 #define SMC_GET_RXFIFO() \
1068 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, RXFIFO_REG)) \
1069 : (SMC_inw(ioaddr, TXFIFO_REG) >> 8) )
1070
1071 #define SMC_GET_INT() \
1072 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, INT_REG)) \
1073 : (SMC_inw(ioaddr, INT_REG) & 0xFF) )
1074
1075 #define SMC_ACK_INT(x) \
1076 do { \
1077 if (SMC_CAN_USE_8BIT) \
1078 SMC_outb(x, ioaddr, INT_REG); \
1079 else { \
1080 unsigned long __flags; \
1081 int __mask; \
1082 local_irq_save(__flags); \
1083 __mask = SMC_inw( ioaddr, INT_REG ) & ~0xff; \
1084 SMC_outw( __mask | (x), ioaddr, INT_REG ); \
1085 local_irq_restore(__flags); \
1086 } \
1087 } while (0)
1088
1089 #define SMC_GET_INT_MASK() \
1090 ( SMC_CAN_USE_8BIT ? (SMC_inb(ioaddr, IM_REG)) \
1091 : (SMC_inw( ioaddr, INT_REG ) >> 8) )
1092
1093 #define SMC_SET_INT_MASK(x) \
1094 do { \
1095 if (SMC_CAN_USE_8BIT) \
1096 SMC_outb(x, ioaddr, IM_REG); \
1097 else \
1098 SMC_outw((x) << 8, ioaddr, INT_REG); \
1099 } while (0)
1100
1101 #define SMC_CURRENT_BANK() SMC_inw(ioaddr, BANK_SELECT)
1102
1103 #define SMC_SELECT_BANK(x) \
1104 do { \
1105 if (SMC_MUST_ALIGN_WRITE) \
1106 SMC_outl((x)<<16, ioaddr, 12<<SMC_IO_SHIFT); \
1107 else \
1108 SMC_outw(x, ioaddr, BANK_SELECT); \
1109 } while (0)
1110
1111 #define SMC_GET_BASE() SMC_inw(ioaddr, BASE_REG)
1112
1113 #define SMC_SET_BASE(x) SMC_outw(x, ioaddr, BASE_REG)
1114
1115 #define SMC_GET_CONFIG() SMC_inw(ioaddr, CONFIG_REG)
1116
1117 #define SMC_SET_CONFIG(x) SMC_outw(x, ioaddr, CONFIG_REG)
1118
1119 #define SMC_GET_COUNTER() SMC_inw(ioaddr, COUNTER_REG)
1120
1121 #define SMC_GET_CTL() SMC_inw(ioaddr, CTL_REG)
1122
1123 #define SMC_SET_CTL(x) SMC_outw(x, ioaddr, CTL_REG)
1124
1125 #define SMC_GET_MII() SMC_inw(ioaddr, MII_REG)
1126
1127 #define SMC_SET_MII(x) SMC_outw(x, ioaddr, MII_REG)
1128
1129 #define SMC_GET_MIR() SMC_inw(ioaddr, MIR_REG)
1130
1131 #define SMC_SET_MIR(x) SMC_outw(x, ioaddr, MIR_REG)
1132
1133 #define SMC_GET_MMU_CMD() SMC_inw(ioaddr, MMU_CMD_REG)
1134
1135 #define SMC_SET_MMU_CMD(x) SMC_outw(x, ioaddr, MMU_CMD_REG)
1136
1137 #define SMC_GET_FIFO() SMC_inw(ioaddr, FIFO_REG)
1138
1139 #define SMC_GET_PTR() SMC_inw(ioaddr, PTR_REG)
1140
1141 #define SMC_SET_PTR(x) \
1142 do { \
1143 if (SMC_MUST_ALIGN_WRITE) \
1144 SMC_outl((x)<<16, ioaddr, SMC_REG(4, 2)); \
1145 else \
1146 SMC_outw(x, ioaddr, PTR_REG); \
1147 } while (0)
1148
1149 #define SMC_GET_EPH_STATUS() SMC_inw(ioaddr, EPH_STATUS_REG)
1150
1151 #define SMC_GET_RCR() SMC_inw(ioaddr, RCR_REG)
1152
1153 #define SMC_SET_RCR(x) SMC_outw(x, ioaddr, RCR_REG)
1154
1155 #define SMC_GET_REV() SMC_inw(ioaddr, REV_REG)
1156
1157 #define SMC_GET_RPC() SMC_inw(ioaddr, RPC_REG)
1158
1159 #define SMC_SET_RPC(x) \
1160 do { \
1161 if (SMC_MUST_ALIGN_WRITE) \
1162 SMC_outl((x)<<16, ioaddr, SMC_REG(8, 0)); \
1163 else \
1164 SMC_outw(x, ioaddr, RPC_REG); \
1165 } while (0)
1166
1167 #define SMC_GET_TCR() SMC_inw(ioaddr, TCR_REG)
1168
1169 #define SMC_SET_TCR(x) SMC_outw(x, ioaddr, TCR_REG)
1170
1171 #ifndef SMC_GET_MAC_ADDR
1172 #define SMC_GET_MAC_ADDR(addr) \
1173 do { \
1174 unsigned int __v; \
1175 __v = SMC_inw( ioaddr, ADDR0_REG ); \
1176 addr[0] = __v; addr[1] = __v >> 8; \
1177 __v = SMC_inw( ioaddr, ADDR1_REG ); \
1178 addr[2] = __v; addr[3] = __v >> 8; \
1179 __v = SMC_inw( ioaddr, ADDR2_REG ); \
1180 addr[4] = __v; addr[5] = __v >> 8; \
1181 } while (0)
1182 #endif
1183
1184 #define SMC_SET_MAC_ADDR(addr) \
1185 do { \
1186 SMC_outw( addr[0]|(addr[1] << 8), ioaddr, ADDR0_REG ); \
1187 SMC_outw( addr[2]|(addr[3] << 8), ioaddr, ADDR1_REG ); \
1188 SMC_outw( addr[4]|(addr[5] << 8), ioaddr, ADDR2_REG ); \
1189 } while (0)
1190
1191 #define SMC_SET_MCAST(x) \
1192 do { \
1193 const unsigned char *mt = (x); \
1194 SMC_outw( mt[0] | (mt[1] << 8), ioaddr, MCAST_REG1 ); \
1195 SMC_outw( mt[2] | (mt[3] << 8), ioaddr, MCAST_REG2 ); \
1196 SMC_outw( mt[4] | (mt[5] << 8), ioaddr, MCAST_REG3 ); \
1197 SMC_outw( mt[6] | (mt[7] << 8), ioaddr, MCAST_REG4 ); \
1198 } while (0)
1199
1200 #define SMC_PUT_PKT_HDR(status, length) \
1201 do { \
1202 if (SMC_CAN_USE_32BIT) \
1203 SMC_outl((status) | (length)<<16, ioaddr, DATA_REG); \
1204 else { \
1205 SMC_outw(status, ioaddr, DATA_REG); \
1206 SMC_outw(length, ioaddr, DATA_REG); \
1207 } \
1208 } while (0)
1209
1210 #define SMC_GET_PKT_HDR(status, length) \
1211 do { \
1212 if (SMC_CAN_USE_32BIT) { \
1213 unsigned int __val = SMC_inl(ioaddr, DATA_REG); \
1214 (status) = __val & 0xffff; \
1215 (length) = __val >> 16; \
1216 } else { \
1217 (status) = SMC_inw(ioaddr, DATA_REG); \
1218 (length) = SMC_inw(ioaddr, DATA_REG); \
1219 } \
1220 } while (0)
1221
1222 #define SMC_PUSH_DATA(p, l) \
1223 do { \
1224 if (SMC_CAN_USE_32BIT) { \
1225 void *__ptr = (p); \
1226 int __len = (l); \
1227 void __iomem *__ioaddr = ioaddr; \
1228 if (__len >= 2 && (unsigned long)__ptr & 2) { \
1229 __len -= 2; \
1230 SMC_outw(*(u16 *)__ptr, ioaddr, DATA_REG); \
1231 __ptr += 2; \
1232 } \
1233 if (SMC_CAN_USE_DATACS && lp->datacs) \
1234 __ioaddr = lp->datacs; \
1235 SMC_outsl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1236 if (__len & 2) { \
1237 __ptr += (__len & ~3); \
1238 SMC_outw(*((u16 *)__ptr), ioaddr, DATA_REG); \
1239 } \
1240 } else if (SMC_CAN_USE_16BIT) \
1241 SMC_outsw(ioaddr, DATA_REG, p, (l) >> 1); \
1242 else if (SMC_CAN_USE_8BIT) \
1243 SMC_outsb(ioaddr, DATA_REG, p, l); \
1244 } while (0)
1245
1246 #define SMC_PULL_DATA(p, l) \
1247 do { \
1248 if (SMC_CAN_USE_32BIT) { \
1249 void *__ptr = (p); \
1250 int __len = (l); \
1251 void __iomem *__ioaddr = ioaddr; \
1252 if ((unsigned long)__ptr & 2) { \
1253 /* \
1254 * We want 32bit alignment here. \
1255 * Since some buses perform a full \
1256 * 32bit fetch even for 16bit data \
1257 * we can't use SMC_inw() here. \
1258 * Back both source (on-chip) and \
1259 * destination pointers of 2 bytes. \
1260 * This is possible since the call to \
1261 * SMC_GET_PKT_HDR() already advanced \
1262 * the source pointer of 4 bytes, and \
1263 * the skb_reserve(skb, 2) advanced \
1264 * the destination pointer of 2 bytes. \
1265 */ \
1266 __ptr -= 2; \
1267 __len += 2; \
1268 SMC_SET_PTR(2|PTR_READ|PTR_RCV|PTR_AUTOINC); \
1269 } \
1270 if (SMC_CAN_USE_DATACS && lp->datacs) \
1271 __ioaddr = lp->datacs; \
1272 __len += 2; \
1273 SMC_insl(__ioaddr, DATA_REG, __ptr, __len>>2); \
1274 } else if (SMC_CAN_USE_16BIT) \
1275 SMC_insw(ioaddr, DATA_REG, p, (l) >> 1); \
1276 else if (SMC_CAN_USE_8BIT) \
1277 SMC_insb(ioaddr, DATA_REG, p, l); \
1278 } while (0)
1279
1280 #endif /* _SMC91X_H_ */
Support for the Chinese Samsung S3C2440 based development boards