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1 207 jeremybenn
/*
2
 * The authors hereby grant permission to use, copy, modify, distribute,
3
 * and license this software and its documentation for any purpose, provided
4
 * that existing copyright notices are retained in all copies and that this
5
 * notice is included verbatim in any distributions. No written agreement,
6
 * license, or royalty fee is required for any of the authorized uses.
7
 * Modifications to this software may be copyrighted by their authors
8
 * and need not follow the licensing terms described here, provided that
9
 * the new terms are clearly indicated on the first page of each file where
10
 * they apply.
11
 */
12
 
13
/************************************************************************
14
 *
15
 * anomaly_macros_rtl.h : $Revision: 1.2 $
16
 *
17
 * Copyright (C) 2008, 2009 Analog Devices, Inc.
18
 *
19
 * This file defines macros used within the run-time libraries to enable
20
 * certain anomaly workarounds for the appropriate chips and silicon
21
 * revisions. Certain macros are defined for silicon-revision none - this
22
 * is to ensure behaviour is unchanged from libraries supplied with
23
 * earlier tools versions, where a small number of anomaly workarounds
24
 * were applied in all library flavours. __FORCE_LEGACY_WORKAROUNDS__
25
 * is defined in this case.
26
 *
27
 * This file defines macros for a subset of all anomalies that may impact
28
 * the run-time libraries.
29
 *
30
 ************************************************************************/
31
 
32
 
33
#ifdef _MISRA_RULES
34
#pragma diag(push)
35
#pragma diag(suppress:misra_rule_2_4:"Assembly code in comment used to illustrate anomalous behaviour")
36
#pragma diag(suppress:misra_rule_19_4:"The definition of WA_05000204_CHECK_AVOID_FOR_REV cannot be parenthasised as it would fail when used in assembly library code.")
37
#endif /* _MISRA_RULES */
38
 
39
#if !defined(__SILICON_REVISION__)
40
#define __FORCE_LEGACY_WORKAROUNDS__
41
#endif
42
 
43
 
44
/* 05-00-0096 - PREFETCH, FLUSH, and FLUSHINV must be followed by a CSYNC
45
**
46
**  ADSP-BF531/2/3 - revs 0.0-0.1,
47
**  ADSP-BF561 - revs 0.0-0.1 (not supported in VDSP++ 4.0)
48
**
49
*/
50
#define WA_05000096 \
51
  ((defined(__ADSPBF531__) ||  \
52
    defined(__ADSPBF532__) ||  \
53
    defined(__ADSPBF533__) ||  \
54
    defined(__ADSPBF561__)) && \
55
  ((defined(__SILICON_REVISION__) && \
56
   (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x1)) || \
57
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
58
 
59
 
60
/* 05-00-0109 - Reserved bits in SYSCFG register not set at power on
61
**
62
**  ADSP-BF531/2/3 - revs 0.0-0.2 (fixed 0.3)
63
**  ADSP-BF561 - revs 0.0-0.2 (fixed 0.3. 0.0, 0.1 not supported in VDSP++ 4.0)
64
**
65
** Changes to start code.
66
*/
67
#define WA_05000109 \
68
  ((defined(__ADSPBF531__) ||  \
69
    defined(__ADSPBF532__) ||  \
70
    defined(__ADSPBF533__) ||  \
71
    defined(__ADSPBF561__)) && \
72
  ((defined(__SILICON_REVISION__) && \
73
   (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x2)) || \
74
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
75
 
76
 
77
/* 05-00-0123 - DTEST_COMMAND initiated memory access may be incorrect if
78
** data cache or DMA is active.
79
**
80
**  ADSP-BF531/2/3 - revs 0.1-0.2 (fixed 0.3)
81
**  ADSP-BF561 - revs 0.0-0.2 (0.0 and 0.1 not supported in VDSP++ 4.0)
82
*/
83
#define WA_05000123 \
84
  ((defined(__ADSPBF531__) ||  \
85
    defined(__ADSPBF532__) ||  \
86
    defined(__ADSPBF533__) ||  \
87
    defined(__ADSPBF561__)) && \
88
  ((defined(__SILICON_REVISION__) && \
89
   (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x2)) || \
90
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
91
 
92
 
93
/* 05-00-0125 - Erroneous exception when enabling cache
94
**
95
**  ADSP-BF531/2/3 - revs 0.1-0.2 (fixed 0.3)
96
**  ADSP-BF561 - revs 0.0-0.2 (0.0 and 0.1 not supported in VDSP++ 4.0)
97
**
98
*/
99
#define WA_05000125 \
100
  ((defined(__ADSPBF531__) ||  \
101
    defined(__ADSPBF532__) ||  \
102
    defined(__ADSPBF533__) ||  \
103
    defined(__ADSPBF561__)) && \
104
  ((defined(__SILICON_REVISION__) && \
105
   (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x2)) || \
106
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
107
 
108
 
109
/* 05-00-0127 - Signbits instruction not functional under certain conditions
110
**
111
**  ADSP-BF561 - from rev 0.0 (not yet fixed)
112
**
113
** The SIGNBITS instruction requires a NOP before it if one of its operands
114
** is defined in the preceding instruction.
115
**
116
*/
117
#define WA_05000127 \
118
  (defined(__SILICON_REVISION__) && defined(__ADSPBF561__))
119
 
120
 
121
/* 05-00-0137 - DMEM_CONTROL<12> is not set on Reset
122
**
123
**  ADSP-BF531/2/3 - revs 0.0-0.2 (fixed 0.3)
124
**
125
** Changes to start code.
126
**
127
*/
128
#define WA_05000137 \
129
  ((defined(__ADSPBF531__) ||  \
130
    defined(__ADSPBF532__) ||  \
131
    defined(__ADSPBF533__)) && \
132
  ((defined(__SILICON_REVISION__) && \
133
   (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x2)) || \
134
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
135
 
136
 
137
/* 05-00-0158 - "Boot fails when data cache enabled: Data from a Data Cache
138
** fill can be  corrupted after or during instruction DMA if certain core
139
** stalls exist"
140
**
141
**  Impacted:
142
**    BF533/3/1 : 0.0-0.4 (fixed 0.5)
143
**
144
** The workaround we have only works for si-revisions >= 0.3. No workaround for
145
** ealier revisions.
146
*/
147
#define WA_05000158 \
148
  ((defined(__ADSPBF531__) ||  \
149
    defined(__ADSPBF532__) ||  \
150
    defined(__ADSPBF533__)) && \
151
  ((defined(__SILICON_REVISION__) && \
152
   (__SILICON_REVISION__ == 0xffff || \
153
     (__SILICON_REVISION__ >= 0x3 && \
154
      __SILICON_REVISION__ < 0x5))) || \
155
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
156
 
157
 
158
/* 05-00-0162 - DMEM_CONTROL<12> is not set on Reset
159
**
160
**  ADSP-BF561 - revs 0.0-0.2 (fixed 0.3)
161
**
162
** Changes to start code.
163
**
164
*/
165
#define WA_05000162 \
166
  (defined(__ADSPBF561__) && \
167
  ((defined(__SILICON_REVISION__) && \
168
   (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x2)) || \
169
   defined(__FORCE_LEGACY_WORKAROUNDS__)))
170
 
171
/* 05-00-0198 - System MMR accesses may fail when stalled by preceding memory
172
** read.
173
**
174
**  Impacted:
175
**     ADSP-BF531 - rev 0.1-0.4 (fixed 0.5)
176
**     ADSP-BF532 - rev 0.1-0.4 (fixed 0.5)
177
**     ADSP-BF533 - rev 0.1-0.4 (fixed 0.5)
178
**     ADSP-BF534 - rev 0.0 (fixed 0.1)
179
**     ADSP-BF536 - rev 0.0 (fixed 0.1)
180
**     ADSP-BF537 - rev 0.0 (fixed 0.1)
181
**     ADSP-BF561 - rev 0.2-0.3 (fixed 0.4)
182
**
183
*/
184
#define WA_05000198 \
185
  (((defined(__ADSPBF531__) ||  \
186
    defined(__ADSPBF532__) ||  \
187
    defined(__ADSPBF533__)) && \
188
  (defined(__SILICON_REVISION__) && \
189
   (__SILICON_REVISION__ <= 0x4 || __SILICON_REVISION__ == 0xffff))) || \
190
  ((defined(__ADSPBF534__) ||  \
191
    defined(__ADSPBF536__) ||  \
192
    defined(__ADSPBF537__) ||  \
193
    defined(__ADSPBF539__)) && \
194
  (defined(__SILICON_REVISION__) && \
195
   (__SILICON_REVISION__ == 0x0 || __SILICON_REVISION__ == 0xffff))) || \
196
    (defined(__ADSPBF561__) && \
197
  (defined(__SILICON_REVISION__) && \
198
   (__SILICON_REVISION__ <= 0x3 || __SILICON_REVISION__ == 0xffff))))
199
 
200
 
201
/* 05-00-0199 - Current DMA Address Shows Wrong Value During Carry Fix
202
**
203
**  Impacted:
204
**     ADSP-BF53[123] - rev 0.0-0.3 (fixed 0.4)
205
**     ADSP-BF53[89] - rev 0.0-0.3 (fixed 0.4)
206
**     ADSP-BF561 - rev 0.0-0.3 (fixed 0.4)
207
**
208
** Use by System Services/Device Drivers.
209
*/
210
#define WA_05000199 \
211
  ((defined(__ADSPBF533_FAMILY__) && \
212
    (defined(__SILICON_REVISION__) && \
213
    (__SILICON_REVISION__ <= 0x3 || __SILICON_REVISION__ == 0xffff))) || \
214
   (defined(__ADSPBF538_FAMILY__) && \
215
    (defined(__SILICON_REVISION__) && \
216
    (__SILICON_REVISION__ <= 0x3 || __SILICON_REVISION__ == 0xffff))) || \
217
   (defined(__ADSPBF561__) && \
218
    (defined(__SILICON_REVISION__) && \
219
     (__SILICON_REVISION__ <= 0x3 || __SILICON_REVISION__ == 0xffff))))
220
 
221
 
222
/* 05-00-0204 - "Incorrect data read with write-through cache and
223
** allocate cache lines on reads only mode.
224
**
225
** This problem is cache related with high speed clocks. It apparently does
226
** not impact BF531 and BF532 because they cannot run at high enough clock
227
** to cause the anomaly. We build libs for BF532 though so that means we will
228
** need to do the workaround for BF532 and BF531 also.
229
**
230
** Also the 0.3 to 0.4 revision is not an inflexion for libs BF532 and BF561.
231
** This means a RT check may be required to avoid doing the WA for 0.4.
232
**
233
**  Impacted:
234
**     BF533 - 0.0-0.3 (fixed 0.4)
235
**     BF534 - 0.0 (fixed 0.1)
236
**     BF536 - 0.0 (fixed 0.1)
237
**     BF537 - 0.0 (fixed 0.1)
238
**     BF538 - 0.0 (fixed 0.1)
239
**     BF539 - 0.0 (fixed 0.1)
240
**     BF561 - 0.0-0.3 (fixed 0.4)
241
*/
242
#if defined(__ADI_LIB_BUILD__)
243
#  define __BUILDBF53123 1 /* building one single library for BF531/2/3 */
244
#else
245
#  define __BUILDBF53123 0
246
#endif
247
 
248
#define WA_05000204 \
249
   ((((__BUILDBF53123==1 && \
250
       (defined(__ADSPBF531__) || defined(__ADSPBF532__))) || \
251
      (defined(__ADSPBF533__) || defined(__ADSPBF561__))) && \
252
     (defined(__SILICON_REVISION__) && \
253
      (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ <= 0x3))) || \
254
    ((defined(__ADSPBF534__) || defined(__ADSPBF536__) || \
255
      defined(__ADSPBF537__) || defined(__ADSPBF538__) || \
256
      defined(__ADSPBF539__)) && \
257
     (defined(__SILICON_REVISION__) && \
258
      (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ == 0x0))))
259
 
260
#if ((defined(__ADSPBF531__) || defined(__ADSPBF532__) || \
261
      defined(__ADSPBF533__) || defined(__ADSPBF561__)) && \
262
     (defined(__SILICON_REVISION__) && \
263
      (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ == 0x3)))
264
/* check at RT for 0.4 revs when doing 204 workaround */
265
#  define WA_05000204_CHECK_AVOID_FOR_REV <=3
266
#elif ((defined(__ADSPBF534__) || defined(__ADSPBF536__) || \
267
        defined(__ADSPBF537__) || defined(__ADSPBF538__) || \
268
        defined(__ADSPBF539__)) && \
269
     (defined(__SILICON_REVISION__) && \
270
      (__SILICON_REVISION__ == 0xffff || __SILICON_REVISION__ == 0x0)))
271
/* check at RT for 0.4 revs when doing 204 workaround */
272
#  define WA_05000204_CHECK_AVOID_FOR_REV <1
273
#else
274
/* do not check at RT for 0.4 revs when doing 204 workaround */
275
#endif
276
 
277
 
278
/* 05-00-0209 - Speed Path in Computational Unit Affects Certain Instructions
279
**
280
**  ADSP-BF531/2/3 - revs 0.0 - 0.3 (fixed in 0.4)
281
**  ADSP-BF534/6/7 - rev 0.0 (fixed in 0.1)
282
**  ADSP-BF538/9   - rev 0.0 (fixed in 0.1)
283
**  ADSP-BF561     - revs 0.0 - 0.3 (fixed in 0.4)
284
**
285
** SIGNBITS, EXTRACT, DEPOSIT, EXPADJ require a NOP before them if
286
** one of their operands is defined in the preceding instruction.
287
*/
288
#define WA_05000209 \
289
  (defined(__SILICON_REVISION__) &&  \
290
   (((defined(__ADSPBF531__) ||  \
291
      defined(__ADSPBF532__) ||  \
292
      defined(__ADSPBF533__)) &&  \
293
     (__SILICON_REVISION__ <= 0x3 || __SILICON_REVISION__ == 0xffff)) ||  \
294
    ((defined(__ADSPBF534__) ||  \
295
      defined(__ADSPBF536__) ||  \
296
      defined(__ADSPBF537__) ||  \
297
      defined(__ADSPBF538__) ||  \
298
      defined(__ADSPBF539__)) && \
299
     (__SILICON_REVISION__ == 0x0 || __SILICON_REVISION__ == 0xffff)) || \
300
    ((defined(__ADSPBF561__)) && \
301
     (__SILICON_REVISION__ <= 0x3 || __SILICON_REVISION__ == 0xffff))))
302
 
303
 
304
/* 05-00-0212 - PORTx_FER, PORT_MUX Registers Do Not accept "writes" correctly
305
**
306
**  Impacted:
307
**     ADSP-BF53[467] - rev 0.0 (fixed 0.1)
308
**
309
** Use by System Services/Device Drivers.
310
*/
311
#define WA_05000212 \
312
  (defined(__ADSPBF537_FAMILY__) && \
313
   (defined(__SILICON_REVISION__) && \
314
    (__SILICON_REVISION__ == 0x0 || __SILICON_REVISION__ == 0xffff)))
315
 
316
 
317
/* 05-00-0258 - "Instruction Cache is corrupted when bit 9 and 12 of
318
 * the ICPLB Data registers differ"
319
 *
320
 * When bit 9 and bit 12 of the ICPLB Data MMR differ, the cache may
321
 * not update properly.  For example, for a particular cache line,
322
 * the cache tag may be valid while the contents of that cache line
323
 * are not present in the cache.
324
 *
325
 * Impacted:
326
 *
327
 * BF531/2/3 - 0.0-0.4 (fixed 0.5)
328
 * BF534/6/7/8/9 - 0.0-0.2 (fixed 0.3)
329
 * BF561 - 0.0-0.4 (fixed 0.5)
330
 * BF566 - 0.0-0.1 (fixed 0.2)
331
 * BF535/AD6532/AD6900 - all revs
332
 */
333
#define WA_05000258 \
334
  (((defined(__ADSPBF531__) || \
335
    defined(__ADSPBF532__) || \
336
    defined(__ADSPBF533__)) && \
337
   (defined(__SILICON_REVISION__) && \
338
   (__SILICON_REVISION__ <= 0x4 || \
339
    __SILICON_REVISION__ == 0xffff))) || \
340
  ((defined(__ADSPBF534__) || \
341
    defined(__ADSPBF536__) || \
342
    defined(__ADSPBF537__) || \
343
    defined(__ADSPBF538__) || \
344
    defined(__ADSPBF539__)) && \
345
   (defined(__SILICON_REVISION__) && \
346
   (__SILICON_REVISION__ <= 0x2 || \
347
    __SILICON_REVISION__ == 0xffff))) || \
348
   (defined(__ADSPBF561__) && \
349
   (defined(__SILICON_REVISION__) && \
350
   (__SILICON_REVISION__ <= 0x4 || \
351
    __SILICON_REVISION__ == 0xffff))) || \
352
   (defined(__ADSPBF566__) && \
353
   (defined(__SILICON_REVISION__) && \
354
   (__SILICON_REVISION__ <= 0x1 || \
355
    __SILICON_REVISION__ == 0xffff))) || \
356
  (!defined(__ADSPLPBLACKFIN__) && defined(__SILICON_REVISION__)))
357
 
358
 
359
/* 05-00-0259 - "Non-deterministic ICPLB descriptors delivered to
360
 * hardware". Whenever ICPLBs are disabled via an MMR write, immediately
361
 * follow this write with a CSYNC, and locate the MMR write and CSYNC
362
 * within the same aligned 64 bit word.
363
 *
364
 * This problem impacts all revisions of Blackfins.
365
 */
366
 
367
#define WA_05000259 \
368
        (defined(__ADSPBLACKFIN__) && defined(__SILICON_REVISION__))
369
 
370
 
371
/* 05-00-0261 - "DCPLB_FAULT_ADDR MMR may be corrupted".
372
 * The DCPLB_FAULT_ADDR MMR may contain the fault address of a
373
 * aborted memory access which generated both a protection exception
374
 * and a stall.
375
 *
376
 * We work around this by initially ignoring a DCPLB miss exception
377
 * on the assumption that the faulting address might be invalid.
378
 * We return without servicing. The exception will be raised
379
 * again when the faulting instruction is re-executed. The fault
380
 * address is correct this time round so the miss exception can
381
 * be serviced as normal. The only complication is we have to
382
 * ensure that we are about to service the same miss rather than
383
 * a miss raised within a higher-priority interrupt handler, where
384
 * the fault address could again be invalid. We therefore record
385
 * the last seen RETX and only service an exception when RETX and
386
 * the last seen RETX are equal.
387
 *
388
 * This problem impacts:
389
 * BF531/2/3 - rev 0.0-0.4 (fixed 0.5)
390
 * BF534/6/7/8/9 - rev 0.0-0.2 (fixed 0.3)
391
 * BF561 - rev 0.0-0.4 (fixed 0.5)
392
 *
393
 */
394
 
395
#define WA_05000261 \
396
  (((defined(__ADSPBF531__) || \
397
    defined(__ADSPBF532__) || \
398
    defined(__ADSPBF533__)) && \
399
   (defined(__SILICON_REVISION__) && \
400
   (__SILICON_REVISION__ <= 0x4 || \
401
    __SILICON_REVISION__ == 0xffff))) || \
402
  ((defined(__ADSPBF534__) || \
403
    defined(__ADSPBF536__) || \
404
    defined(__ADSPBF537__) || \
405
    defined(__ADSPBF538__) || \
406
    defined(__ADSPBF539__)) && \
407
   (defined(__SILICON_REVISION__) && \
408
   (__SILICON_REVISION__ <= 0x2 || \
409
    __SILICON_REVISION__ == 0xffff))) || \
410
   (defined(__ADSPBF561__) && \
411
   (defined(__SILICON_REVISION__) && \
412
   (__SILICON_REVISION__ <= 0x4 || \
413
    __SILICON_REVISION__ == 0xffff))))
414
 
415
/* 05-00-0229 - "SPI Slave Boot Mode Modifies Registers".
416
 * When the SPI slave boot completes, the final DMA IRQ is cleared
417
 * but the DMA5_CONFIG and SPI_CTL registers are not reset to their
418
 * default states.
419
 *
420
 * We work around this by resetting the registers to their default
421
 * values at the beginning of the CRT. The only issue would be when
422
 * users boot from flash and make use of the DMA or serial port.
423
 * In this case, users would need to modify the CRT.
424
 *
425
 * This problem impacts all revisions of ADSP-BF531/2/3/8/9
426
 */
427
 
428
#define WA_05000229 \
429
        (defined(__ADSPBLACKFIN__) && defined (__SILICON_REVISION__) && \
430
         (defined(__ADSPBF531__) || defined(__ADSPBF532__) || \
431
          defined(__ADSPBF533__) || defined(__ADSPBF538__) || \
432
          defined(__ADSPBF539__)))
433
 
434
/* 05-00-0283 - "A system MMR write is stalled indefinitely when killed in a
435
 * particular stage".
436
 *
437
 * Where an interrupt occurs killing a stalled system MMR write, and the ISR
438
 * executes an SSYNC, execution execution may stall indefinitely".
439
 *
440
 * The workaround is to execute a mispredicted jump over a dummy MMR read,
441
 * thus killing the read. Also to avoid a system MMR write in two slots
442
 * after a not predicted conditional jump.
443
 *
444
 * This problem impacts:
445
 * BF531/2/3 - < 0.6
446
 * BF534/6/7 - < 0.3
447
 * BF538/9 - < 0.4
448
 * BF561/6 - < 0.5
449
 *
450
 * Since this impacts 538/9 0.3 but not 534 0.3 (the libraries that they use)
451
 * we have to enable this workaround for the 534 0.3 libraries (see bottom
452
 * two lines).
453
 */
454
 
455
#define WA_05000283 \
456
        (defined (__SILICON_REVISION__) && \
457
         (((defined(__ADSPBF531__) ||  \
458
            defined(__ADSPBF532__) ||  \
459
            defined(__ADSPBF533__)) && \
460
           (__SILICON_REVISION__ == 0xffff || \
461
            __SILICON_REVISION__ < 0x6)) || \
462
          ((defined(__ADSPBF534__) ||  \
463
            defined(__ADSPBF536__) ||  \
464
            defined(__ADSPBF537__)) && \
465
           (__SILICON_REVISION__ == 0xffff || \
466
            __SILICON_REVISION__ < 0x3)) || \
467
          ((defined(__ADSPBF538__) ||  \
468
            defined(__ADSPBF539__)) &&  \
469
           (__SILICON_REVISION__ == 0xffff || \
470
            __SILICON_REVISION__ < 0x4)) || \
471
          (defined(__ADSPBF561__)) || \
472
          (defined(__ADSPBF534__) && __SILICON_REVISION__ == 0x3 && \
473
           defined(__ADI_LIB_BUILD__))))
474
 
475
 
476
/* 05-00-0311 - Erroneous Flag (GPIO) Pin Operations under Specific Sequences
477
**
478
**  Impacted:
479
**     ADSP-BF53[123] - 0.0-0.5 (fixed in 0.6)
480
**
481
** Use by System Services/Device Drivers.
482
*/
483
#define WA_05000311 \
484
  (defined(__ADSPBF533_FAMILY__) && \
485
   (defined(__SILICON_REVISION__) && \
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    (__SILICON_REVISION__ <= 0x5 || __SILICON_REVISION__ == 0xffff)))
487
 
488
 
489
/* 05-00-0323 - Erroneous Flag (GPIO) Pin Operations under Specific Sequences
490
**
491
**  Impacted:
492
**     ADSP-BF561 - all supported revisions
493
**
494
** Use by System Services/Device Drivers.
495
*/
496
#define WA_05000323 \
497
  (defined(__ADSPBF561__) && defined(__SILICON_REVISION__))
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499
 
500
/* 05-00-0365 - DMAs that Go Urgent during Tight Core Writes to External
501
**              Memory Are Blocked
502
**
503
**  Impacted:
504
**     ADSP-BF54[24789] - all supported revisions
505
**     ADSP-BF54[24789]M - all supported revisions
506
**
507
** Use by System Services/Device Drivers.
508
*/
509
#define WA_05000365 \
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  ((defined(__ADSPBF548_FAMILY__) || defined(__ADSPBF548M_FAMILY__)) && \
511
   defined(__SILICON_REVISION__))
512
 
513
 
514
/* 05-00-0380 - Data Read From L3 Memory by USB DMA May be Corrupted
515
**
516
**  Impacted:
517
**     ADSP-BF52[357] - rev 0.0-0.1 (fixed 0.2)
518
**
519
** Use by System Services/Device Drivers.
520
*/
521
#define WA_05000380 \
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  (defined(__ADSPBF527_FAMILY__) && \
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   (defined(__SILICON_REVISION__) && \
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    (__SILICON_REVISION__ <= 0x1 || __SILICON_REVISION__ == 0xffff)))
525
 
526
 
527
/* 05-00-0412 - "TESTSET Instruction Causes Data Corruption with Writeback Data
528
 * Cache Enabled"
529
 *
530
 * If you use the testset instruction to operate on L2 memory and you have data
531
 * in external memory that is cached using WB mode, data in external memory
532
 * and/or L2 memory can be corrupted.
533
 *
534
 * Workaround: Either do not use writeback cache or precede the TESTSET
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 * instruction with an SSYNC instruction. If preceding the TESTSET instruction
536
 * by an SSYNC instruction, do the following:
537
 *
538
 *   CLI R0
539
 *   R1 = [P0]  // perform a dummy read to make sure CPLB is installed
540
 *   NOP
541
 *   NOP
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 *   SSYNC
543
 *   TESTSET (P0)
544
 *   STI R0
545
 *
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 * This problem impacts:
547
 * BF561/6 - rev 0.0-0.5
548
 *
549
 */
550
 
551
#define WA_05000412 \
552
        (defined (__SILICON_REVISION__) && defined(__ADSPBF561__))
553
 
554
 
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/* 05-00-0428 - "Lost/Corrupted Write to L2 Memory Following Speculative Read
556
 * by Core B from L2 Memory"
557
 *
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 * This issue occurs only when the accesses are performed by core B of a BF561.
559
 *
560
 * When a write to internal L2 memory follows a speculative read from internal
561
 * L2 memory, the L2 write may be lost or corrupted. For this anomaly to occur,
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 * the speculative read must be caused by a read in the shadow of a branch. The
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 * accesses do not have to be consecutive accesses. In other words, the problem
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 * can occur even if there are multiple instructions between the speculative
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 * read and the write, as shown in the following example:
566
 *
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 *   R1 = 1; R2 = 1;
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 *   CC = R1 == R2;
569
 *   IF CC JUMP X;  // Always true...
570
 *   R0 = [P0];     // If any of these three loads accesses L2 memory from Core
571
 *   R1 = [P1];     // B, speculative execution in the pipeline causes the
572
 *   R2 = [P2];     // anomaly trigger condition.
573
 *   X:
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 *   ...            // Any number of instructions...
575
 *   [P0] = R0;  // This write can be corrupted or lost.
576
 *
577
 * The issue does not occur if the speculative read access is caused by an
578
 * interrupt or exception.
579
 *
580
 * The workaround required depends upon the conditional branch instruction.
581
 * If the evaluated condition is true and the branch is predicted, then the
582
 * workaround is to ensure that the target instruction is not be a load
583
 * instruction, for example:
584
 *
585
 *   IF CC JUMP X (BP);
586
 *   ...
587
 *   X: <load that might be from L2 memory>
588
 *
589
 * If the evaluated condition is false and the branch is not predicted, then
590
 * the workaround is to make sure that none of the three instructions that
591
 * are executed after the conditional JUMP are load instructions, for example:
592
 *
593
 *   IF CC JUMP ...;
594
 *   <load that might be from L2 memory>
595
 *   <load that might be from L2 memory>
596
 *   <load that might be from L2 memory>
597
 *
598
 * This problem impacts:
599
 * BF561 - rev 0.4,0.5
600
 *
601
 */
602
 
603
#define WA_05000428 \
604
        (defined(__SILICON_REVISION__) && \
605
         defined(__ADSPBF561__)        && \
606
         ((__SILICON_REVISION__ == 0xffff) || \
607
          (__SILICON_REVISION__ == 0x4)    || \
608
          (__SILICON_REVISION__ == 0x5)))
609
 
610
 
611
#ifdef _MISRA_RULES
612
#pragma diag(pop)
613
#endif /* _MISRA_RULES */
614
 

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