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fe8c2806
WD		 1# Porting U-Boot onto RPXlite board
2# Written by Yoo. Jonghoon
3# E-Mail : yooth@ipone.co.kr
4# IP ONE Inc.
5
6# Since 2001. 1. 29
7
8# Shell : bash
9# Cross-compile tools : Montavista Hardhat
10# Debugging tools : Windriver VisionProbe (PowerPC BDM)
11# ppcboot ver. : ppcboot-0.8.1
12
13###############################################################
14# 1. Hardware setting
15###############################################################
16
171.1. Board, BDM settings
18 Install board, BDM, connect each other
19
201.2. Save Register value
21 Boot with board-on monitor program and save the
22 register values with BDM.
23
241.3. Configure flash programmer
25 Check flash memory area in the memory map.
26 0xFFC00000 - 0xFFFFFFFF
27
28 Boot monitor program is at
29 0xFFF00000
30
31 You can program on-board flash memory with VisionClick
32 flash programmer. Set the target flash device as:
33
34 29DL800B
35
36 (?) The flash memory device in the board *is* 29LV800B,
37 but I cannot program it with '29LV800B' option.
38 (in VisionClick flash programming tools)
39 I don't know why...
40
411.4. Save boot monitor program *IMPORTANT*
42 Upload boot monitor program from board to file.
43 boot monitor program starts at 0xFFF00000
44
451.5. Test flash memory programming
46 Try to erase boot program in the flash memory,
47 and re-write them.
48 *WARNING* YOU MUST SAVE BOOT PROGRAM TO FILE
49 BEFORE ERASING FLASH
50
51###############################################################
52# 2. U-Boot setting
53###############################################################
54
552.1. Download U-Boot tarball at
56 ftp://ftp.denx.de
57 (The latest version is ppcboot-0.8.1.tar.bz2)
58
59 To extract the archive use the following syntax :
60 > bzip2 -cd ppcboot-0.8.1.tar.bz2 | tar xf -
61
622.2. Add the following lines in '.profile'
63 export PATH=$PATH:/opt/hardhat/devkit/ppc/8xx/bin
64
652.3. Make board specific config, for example:
66 > cd ppcboot-0.8.1
67 > make TQM860L_config
68
69 Now we can build ppcboot bin files.
70 After make all, you must see these files in your
71 ppcboot root directory.
72
73 ppcboot
74 ppcboot.bin
75 ppcboot.srec
76 ppcboot.map
77
782.4. Make your own board directory into the
79 ppcboot-0.8.1/board
80 and make your board-specific files here.
81
82 For exmanple, tqm8xx files are composed of
83 .depend : Nothing
84 Makefile : To make config file
85 config.mk : Sets base address
86 flash.c : Flash memory control files
87 ppcboot.lds : linker(ld) script? (I don't know this yet)
88 tqm8xx.c : DRAM control and board check routines
89
90 And, add your board config lines in the
91 ppcboot-0.8.1/Makefile
92
93 Finally, add config_(your board).h file in the
94 ppcboot-0.8.1/include/
95
96 I've made board/rpxlite directory, and just copied
97 tqm8xx settings for now.
98
99 Rebuild ppcboot for rpxlite board:
100 > make rpxlite_config
101 > make
102
103###############################################################
104# 3. U-Boot porting
105###############################################################
106
1073.1. My RPXlite files are based on tqm8xx board files.
108 > cd board
109 > cp -r tqm8xx RPXLITE
110 > cd RPXLITE
111 > mv tqm8xx.c RPXLITE.c
112 > cd ../../include
113 > cp config_tqm8xx.h config_RPXLITE.h
114
1153.2. Modified files are:
116 board/RPXLITE/RPXLITE.c /* DRAM-related routines */
117 board/RPXLITE/flash.c /* flash-related routines */
118 board/RPXLITE/config.mk /* set text base address */
a47a12be 119 arch/powerpc/cpu/mpc8xx/serial.c /* board specific register setting */
fe8c2806
WD		 120 include/config_RPXLITE.h /* board specific registers */
121
122 See 'reg_config.txt' for register values in detail.
123
124###############################################################
125# 4. Running Linux
126###############################################################
127
128
fe8c2806
WD		 129###############################################################
130# Misc Information
131###############################################################
132
133mem_config.txt:
134===============
135
136Flash memory device : AM29LV800BB (1Mx8Bit) x 4 device
137manufacturer id : 01 (AMD)
138device id : 5B (AM29LV800B)
139size : 4Mbyte
140sector # : 19
141
142Sector information :
143
144number start addr. size
14500 FFC0_0000 64
14601 FFC1_0000 32
14702 FFC1_8000 32
14803 FFC2_0000 128
14904 FFC4_0000 256
15005 FFC8_0000 256
15106 FFCC_0000 256
15207 FFD0_0000 256
15308 FFD4_0000 256
15409 FFD8_0000 256
15510 FFDC_0000 256
15611 FFE0_0000 256
15712 FFE4_0000 256
15813 FFE8_0000 256
15914 FFEC_0000 256
16015 FFF0_0000 256
16116 FFF4_0000 256
16217 FFF8_0000 256
16318 FFFC_0000 256
164
165
166reg_config.txt:
167===============
168
169
170/*------------------------------------------------------------------- */
171/*------------------------------------------------------------------- */
172/* SIU (System Interface Unit) */
173/* */
174/*------------------------------------------------------------------- */
175/*------------------------------------------------------------------- */
176
177
178/*### IMMR */
179/*### Internal Memory Map Register */
180/*### Chap. 11.4.1 */
181
182 ISB = 0xFA20 /* Set the Immap base = 0xFA20 0000 */
183 PARTNUM = 0x21
184 MASKNUM = 0x00
185
186 => 0xFA20 2100
187
188---------------------------------------------------------------------
189
190/*### SIUMCR */
191/*### SIU Module Configuration Register */
192/*### Chap. 11.4.2 */
193/*### Offset : 0x0000 0000 */
194
195 EARB = 0
196 EARP = 0
197 DSHW = 0
198 DBGC = 0
199 DBPC = 0
200 FRC = 0
201 DLK = 0
202 OPAR = 0
203 PNCS = 0
204 DPC = 0
205 MPRE = 0
206 MLRC = 10 /* ~KR/~RETRY/~IRQ4/SPKROUT functions as ~KR/~TRTRY */
207 AEME = 0
208 SEME = 0
209 BSC = 0
210 GB5E = 0
211 B2DD = 0
212 B3DD = 0
213
214 => 0x0000 0800
215
216---------------------------------------------------------------------
217
218/*### SYPCR */
219/*### System Protection Control Register */
220/*### Chap. 11.4.3 */
221/*### Offset : 0x0000 0004 */
222
223 SWTC = 0xFFFF /* SW watchdog timer count = 0xFFFF */
224 BMT = 0x06 /* BUS monitoring timing */
225 BME = 1 /* BUS monitor enable */
226 SWF = 1
227 SWE = 0 /* SW watchdog disable */
228 SWRI = 0
229 SWP = 1
230
231 => 0xFFFF 0689
232
233---------------------------------------------------------------------
234
235/*### TESR */
236/*### Transfer Error Status Register */
237/*### Chap. 11.4.4 */
238/*### Offset : 0x0000 0020 */
239
240 IEXT = 0
241 ITMT = 0
242 IPB = 0000
243 DEXT = 0
244 DTMT = 0
245 DPB = 0000
246
247 => 0x0000 0000
248
249---------------------------------------------------------------------
250
251/*### SIPEND */
252/*### SIU Interrupt Pending Register */
253/*### Chap. 11.5.4.1 */
254/*### Offset : 0x0000 0010 */
255
256 IRQ0~IRQ7 = 0
257 LVL0~LVL7 = 0
258
259 => 0x0000 0000
260
261---------------------------------------------------------------------
262
263/*### SIMASK */
264/*### SIU Interrupt Mask Register */
265/*### Chap. 11.5.4.2 */
266/*### Offset : 0x0000 0014 */
267
268 IRM0~IRM7 = 0 /* Mask all interrupts */
269 LVL0~LVL7 = 0
270
271 => 0x0000 0000
272
273---------------------------------------------------------------------
274
275/*### SIEL */
276/*### SIU Interrupt Edge/Level Register */
277/*### Chap. 11.5.4.3 */
278/*### Offset : 0x0000 0018 */
279
280 ED0~ED7 = 0 /* Low level triggered */
281 WMn0~WMn7 = 0 /* Not allowed to exit from low-power mode */
282
283 => 0x0000 0000
284
285---------------------------------------------------------------------
286
287/*### SIVEC */
288/*### SIU Interrupt Vector Register */
289/*### Chap. 11.5.4.4 */
290/*### Offset : 0x0000 001C */
291
292 INTC = 3C /* The lowest interrupt is pending..(?) */
293
294 => 0x3C00 0000
295
296---------------------------------------------------------------------
297
298/*### SWSR */
299/*### Software Service Register */
300/*### Chap. 11.7.1 */
301/*### Offset : 0x0000 001E */
302
303 SEQ = 0
304
305 => 0x0000
306
307---------------------------------------------------------------------
308
309/*### SDCR */
310/*### SDMA Configuration Register */
311/*### Chap. 20.2.1 */
312/*### Offset : 0x0000 0032 */
313
314 FRZ = 0
315 RAID = 01 /* Priority level 5 (BR5) (normal operation) */
316
317 => 0x0000 0001
318
319
320/*------------------------------------------------------------------- */
321/*------------------------------------------------------------------- */
322/* UPMA (User Programmable Machine A) */
323/* */
324/*------------------------------------------------------------------- */
325/*------------------------------------------------------------------- */
326
327/*### Chap. 16.6.4.1 */
328/*### Offset = 0x0000 017c */
329
330 T0 = CFFF CC24 /* Single Read */
331 T1 = 0FFF CC04
332 T2 = 0CAF CC04
333 T3 = 03AF CC08
334 T4 = 3FBF CC27 /* last */
335 T5 = FFFF CC25
336 T6 = FFFF CC25
337 T7 = FFFF CC25
338 T8 = CFFF CC24 /* Burst Read */
339 T9 = 0FFF CC04
340 T10 = 0CAF CC84
341 T11 = 03AF CC88
342 T12 = 3FBF CC27 /* last */
343 T13 = FFFF CC25
344 T14 = FFFF CC25
345 T15 = FFFF CC25
346 T16 = FFFF CC25
347 T17 = FFFF CC25
348 T18 = FFFF CC25
349 T19 = FFFF CC25
350 T20 = FFFF CC25
351 T21 = FFFF CC25
352 T22 = FFFF CC25
353 T23 = FFFF CC25
354 T24 = CFFF CC24 /* Single Write */
355 T25 = 0FFF CC04
356 T26 = 0CFF CC04
357 T27 = 03FF CC00
358 T28 = 3FFF CC27 /* last */
359 T29 = FFFF CC25
360 T30 = FFFF CC25
361 T31 = FFFF CC25
362 T32 = CFFF CC24 /* Burst Write */
363 T33 = 0FFF CC04
364 T34 = 0CFF CC80
365 T35 = 03FF CC8C
366 T36 = 0CFF CC00
367 T37 = 33FF CC27 /* last */
368 T38 = FFFF CC25
369 T39 = FFFF CC25
370 T40 = FFFF CC25
371 T41 = FFFF CC25
372 T42 = FFFF CC25
373 T43 = FFFF CC25
374 T44 = FFFF CC25
375 T45 = FFFF CC25
376 T46 = FFFF CC25
377 T47 = FFFF CC25
378 T48 = C0FF CC24 /* Refresh */
379 T49 = 03FF CC24
380 T50 = 0FFF CC24
381 T51 = 0FFF CC24
382 T52 = 3FFF CC27 /* last */
383 T53 = FFFF CC25
384 T54 = FFFF CC25
385 T55 = FFFF CC25
386 T56 = FFFF CC25
387 T57 = FFFF CC25
388 T58 = FFFF CC25
389 T59 = FFFF CC25
390 T60 = FFFF CC25 /* Exception */
391 T61 = FFFF CC25
392 T62 = FFFF CC25
393 T63 = FFFF CC25
394
395
396/*------------------------------------------------------------------- */
397/*------------------------------------------------------------------- */
398/* UPMB */
399/* */
400/*------------------------------------------------------------------- */
401/*------------------------------------------------------------------- */
402---------------------------------------------------------------------
403
404/*### Chap. 16.6.4.1 */
405
406
407/*------------------------------------------------------------------- */
408/*------------------------------------------------------------------- */
409/* MEMC */
410/* */
411/*------------------------------------------------------------------- */
412/*------------------------------------------------------------------- */
413---------------------------------------------------------------------
414
415/*### BR0 & OR0 */
416/*### Base Registers & Option Registers */
417/*### Chap. 16.4.1 & 16.4.2 */
418/*### Offset : BR0(0x0000 0100) & OR0(0x0000 0104) */
419/*### Flash memory */
420
421 BA = 1111 1110 0000 0000 0 /* Base addr = 0xFE00 0000 */
422 AT = 000
423 PS = 00
424 PARE = 0
425 WP = 0
426 MS = 0 /* GPCM */
427 V = 1 /* Valid */
428
429 => 0xFE00 0001
430
431 AM = 1111 1110 0000 0000 0 /* 32MBytes */
432 ATM = 000
433 CSNT/SAM = 0
434 ACS/G5LA,G5LS = 00
435 BIH = 1 /* Burst inhibited */
436 SCY = 0100 /* cycle length = 4 */
437 SETA = 0
438 TRLX = 0
439 EHTR = 0
440
441 => 0xFE00 0140
442
443/*### BR1 & OR1 */
444/*### Base Registers & Option Registers */
445/*### Chap. 16.4.1 & 16.4.2 */
446/*### Offset : BR1(0x0000 0108) & OR1(0x0000 010C) */
447/*### SDRAM */
448
449 BA = 0000 0000 0000 0000 0 /* Base addr = 0x0000 0000 */
450 AT = 000
451 PS = 00
452 PARE = 0
453 WP = 0
53677ef1 454 MS = 1 /* UPMA */
fe8c2806
WD		 455 V = 1 /* Valid */
456
457 => 0x0000 0081
458
459 AM = 1111 1110 0000 0000 /* 32MBytes */
460 ATM = 000
461 CSNT/SAM = 1
462 ACS/G5LA,G5LS = 11
463 BIH = 0
464 SCY = 0000 /* cycle length = 0 */
465 SETA = 0
466 TRLX = 0
467 EHTR = 0
468
469 => 0xFE00 0E00
470
471/*### BR2 & OR2 */
472/*### Base Registers & Option Registers */
473/*### Chap. 16.4.1 & 16.4.2 */
474/*### Offset : BR2(0x0000 0110) & OR2(0x0000 0114) */
475
476 BR2 & OR2 = 0x0000 0000 /* Not used */
477
478/*### BR3 & OR3 */
479/*### Base Registers & Option Registers */
480/*### Chap. 16.4.1 & 16.4.2 */
481/*### Offset : BR3(0x0000 0118) & OR3(0x0000 011C) */
482/*### BCSR */
483
484 BA = 1111 1010 0100 0000 0 /* Base addr = 0xFA40 0000 */
485 AT = 000
486 PS = 00
487 PARE = 0
488 WP = 0
53677ef1 489 MS = 0 /* GPCM */
fe8c2806
WD		 490 V = 1 /* Valid */
491
492 => 0xFA40 0001
493
494 AM = 1111 1111 0111 1111 1 /* (?) */
495 ATM = 000
496 CSNT/SAM = 1
497 ACS/G5LA,G5LS = 00
498 BIH = 1 /* Burst inhibited */
499 SCY = 0001 /* cycle length = 1 */
500 SETA = 0
501 TRLX = 0
502
503 => 0xFF7F 8910
504
505/*### BR4 & OR4 */
506/*### Base Registers & Option Registers */
507/*### Chap. 16.4.1 & 16.4.2 */
508/*### Offset : BR4(0x0000 0120) & OR4(0x0000 0124) */
509/*### NVRAM & SRAM */
510
511 BA = 1111 1010 0000 0000 0 /* Base addr = 0xFA00 0000 */
512 AT = 000
513 PS = 01
514 PARE = 0
515 WP = 0
53677ef1 516 MS = 0 /* GPCM */
fe8c2806
WD		 517 V = 1 /* Valid */
518
519 => 0xFA00 0401
520
521 AM = 1111 1111 1111 1000 0 /* 8MByte */
522 ATM = 000
523 CSNT/SAM = 1
524 ACS/G5LA,G5LS = 00
525 BIH = 1 /* Burst inhibited */
526 SCY = 0111 /* cycle length = 7 */
527 SETA = 0
528 TRLX = 0
529
530 => 0xFFF8 0970
531
532/*### BR5 & OR5 */
533/*### Base Registers & Option Registers */
534/*### Chap. 16.4.1 & 16.4.2 */
535/*### Offset : BR2(0x0000 0128) & OR2(0x0000 012C) */
536
537 BR5 & OR5 = 0x0000 0000 /* Not used */
538
539/*### BR6 & OR6 */
540/*### Base Registers & Option Registers */
541/*### Chap. 16.4.1 & 16.4.2 */
542/*### Offset : BR2(0x0000 0130) & OR2(0x0000 0134) */
543
544 BR6 & OR6 = 0x0000 0000 /* Not used */
545
546/*### BR7 & OR7 */
547/*### Base Registers & Option Registers */
548/*### Chap. 16.4.1 & 16.4.2 */
549/*### Offset : BR7(0x0000 0138) & OR7(0x0000 013C) */
550
551 BR7 & OR7 = 0x0000 0000 /* Not used */
552
553/*### MAR */
554/*### Memory Address Register */
555/*### Chap. 16.4.7 */
556/*### Offset : 0x0000 0164 */
557
558 MA = External memory address
559
560/*### MCR */
561/*### Memory Command Register */
562/*### Chap. 16.4.5 */
563/*### Offset : 0x0000 0168 */
564
565 OP = xx /* Command op code */
566 UM = 1 /* Select UPMA */
567 MB = 001 /* Select CS1 */
568 MCLF = xxxx /* Loop times */
569 MAD = xx xxxx /* Memory array index */
570
571/*### MAMR */
572/*### Machine A Mode Register */
573/*### Chap. 16.4.4 */
574/*### Offset : 0x0000 0170 */
575
576 PTA = 0101 1000
577 PTAE = 1 /* Periodic timer A enabled */
578 AMA = 010
579 DSA = 00
580 G0CLA = 000
581 GPLA4DIS = 1
582 RLFA = 0100
583 WLFA = 0011
584 TLFA = 0000
585
586 => 0x58A0 1430
587
588/*### MBMR */
589/*### Machine B Mode Register */
590/*### Chap. 16.4.4 */
591/*### Offset : 0x0000 0174 */
592
593 PTA = 0100 1110
594 PTAE = 0 /* Periodic timer B disabled */
595 AMA = 000
596 DSA = 00
597 G0CLA = 000
598 GPLA4DIS = 1
599 RLFA = 0000
600 WLFA = 0000
601 TLFA = 0000
602
603 => 0x4E00 1000
604
605/*### MSTAT */
606/*### Memory Status Register */
607/*### Chap. 16.4.3 */
608/*### Offset : 0x0000 0178 */
609
610 PER0~PER7 = Parity error
611 WPER = Write protection error
612
613 => 0x0000
614
615/*### MPTPR */
616/*### Memory Periodic Timer Prescaler Register */
617/*### Chap. 16.4.8 */
618/*### Offset : 0x0000 017A */
619
620 PTP = 0000 1000 /* Divide by 8 */
621
622 => 0x0800
623
624/*### MDR */
625/*### Memory Data Register */
626/*### Chap. 16.4.6 */
627/*### Offset : 0x0000 017C */
628
629 MD = Memory data contains the RAM array word
630
631
632/*------------------------------------------------------------------- */
633/*------------------------------------------------------------------- */
634/* TIMERS */
635/* */
636/*------------------------------------------------------------------- */
637/*------------------------------------------------------------------- */
638---------------------------------------------------------------------
639
640/*### TBREFx */
641/*### Timebase Reference Registers */
642/*### Chap. 11.9.2 */
643/*### Offset : TBREFF0(0x0000 0204)/TBREFF1(0x0000 0208) */
644/*### (Locked) */
645
646 TBREFF0 = 0xFFFF FFFF
647 TBREFF1 = 0xFFFF FFFF
648
649---------------------------------------------------------------------
650
651/*### TBSCR */
652/*### Timebase Status and Control Registers */
653/*### Chap. 11.9.3 */
654/*### Offset : 0x0000 0200 */
655/*### (Locked) */
656
657 TBIRQ = 00000000
658 REF0 = 0
659 REF1 = 0
660 REFE0 = 0 /* Reference interrupt disable */
661 REFE1 = 0
662 TBF = 1
663 TBE = 1 /* Timebase enable */
664
665 => 0x0003
666
667---------------------------------------------------------------------
668
669/*### RTCSC */
670/*### Real-Time Clock Status and Control Registers */
671/*### Chap. 11.10.1 */
672/*### Offset : 0x0000 0220 */
673/*### (Locked) */
674
675 RTCIRQ = 00000000
676 SEC = 1
677 ALR = 0
678 38K = 0 /* PITRTCLK is driven by 32.768KHz */
679 SIE = 0
680 ALE = 0
681 RTF = 0
682 RTE = 1 /* Real-Time clock enabled */
683
684 => 0x0081
685
686---------------------------------------------------------------------
687
688/*### RTC */
689/*### Real-Time Clock Registers */
690/*### Chap. 11.10.2 */
691/*### Offset : 0x0000 0224 */
692/*### (Locked) */
693
694 RTC = Real time clock measured in second
695
696---------------------------------------------------------------------
697
698/*### RTCAL */
699/*### Real-Time Clock Alarm Registers */
700/*### Chap. 11.10.3 */
701/*### Offset : 0x0000 022C */
702/*### (Locked) */
703
704 ALARM = 0xFFFF FFFF
705
706---------------------------------------------------------------------
707
708/*### RTSEC */
709/*### Real-Time Clock Alarm Second Registers */
710/*### Chap. 11.10.4 */
711/*### Offset : 0x0000 0228 */
712/*### (Locked) */
713
714 COUNTER = Counter bits(fraction of a second)
715
716---------------------------------------------------------------------
717
718/*### PISCR */
719/*### Periodic Interrupt Status and Control Register */
720/*### Chap. 11.11.1 */
721/*### Offset : 0x0000 0240 */
722/*### (Locked) */
723
724 PIRQ = 0
725 PS = 0 /* Write 1 to clear */
726 PIE = 0
727 PITF = 1
728 PTE = 0 /* PIT disabled */
729
730---------------------------------------------------------------------
731
732/*### PITC */
733/*### PIT Count Register */
734/*### Chap. 11.11.2 */
735/*### Offset : 0x0000 0244 */
736/*### (Locked) */
737
738 PITC = PIT count
739
740---------------------------------------------------------------------
741
742/*### PITR */
743/*### PIT Register */
744/*### Chap. 11.11.3 */
745/*### Offset : 0x0000 0248 */
746/*### (Locked) */
747
748 PIT = PIT count /* Read only */
749
750
fe8c2806
WD		 751/*------------------------------------------------------------------- */
752/*------------------------------------------------------------------- */
753/* CLOCKS */
754/* */
755/*------------------------------------------------------------------- */
756/*------------------------------------------------------------------- */
757---------------------------------------------------------------------
758
759
760---------------------------------------------------------------------
761
762/*### SCCR */
763/*### System Clock and Reset Control Register */
764/*### Chap. 15.6.1 */
765/*### Offset : 0x0000 0280 */
766/*### (Locked) */
767
768 COM = 11 /* Clock output disabled */
769 TBS = 1 /* Timebase frequency source is GCLK2 divided by 16 */
770 RTDIV = 0 /* The clock is divided by 4 */
771 RTSEL = 0 /* OSCM(Crystal oscillator) is selected */
772 CRQEN = 0
773 PRQEN = 0
774 EBDF = 00 /* CLKOUT is GCLK2 divided by 1 */
775 DFSYNC = 00 /* Divided by 1 (normal operation) */
776 DFBRG = 00 /* Divided by 1 (normal operation) */
777 DFNL = 000
778 DFNH = 000
779
780 => 0x6200 0000
781
782---------------------------------------------------------------------
783
784/*### PLPRCR */
785/*### PLL, Low-Power, and Reset Control Register */
786/*### Chap. 15.6.2 */
787/*### Offset : 0x0000 0284 */
788/*### (Locked) */
789
790 MF = 0x005 /* 48MHz (?) ( = 8MHz * (MF+1) ) */
791 SPLSS = 0
792 TEXPS = 0
793 TMIST = 0
794 CSRC = 0 /* The general system clock is generated by the DFNH field */
795 LPM = 00 /* Normal high/normal low mode */
796 CSR = 0
797 LOLRE = 0
798 FIOPD = 0
799
800 => 0x0050 0000
801
802---------------------------------------------------------------------
803
804/*### RSR */
805/*### Reset Status Register */
806/*### Chap. 12.2 */
807/*### Offset : 0x0000 0288 */
808/*### (Locked) */
809
810 EHRS = External hard reset
811 ESRS = External soft reset
812 LLRS = Loss-of-lock reset
813 SWRS = Software watchdog reset
814 CSRS = Check stop reset
815 DBHRS = Debug port hard reset
816 DBSRS = Debug port soft reset
817 JTRS = JTAG reset
818
819
fe8c2806
WD		 820/*------------------------------------------------------------------- */
821/*------------------------------------------------------------------- */
822/* DMA */
823/* */
824/*------------------------------------------------------------------- */
825/*------------------------------------------------------------------- */
826---------------------------------------------------------------------
827
828/*### SDSR */
829/*### SDMA Status Register */
830/*### Chap. 20.2.2 */
831/*### Offset : 0x0000 0908 */
832
833 SBER = 0 /* SDMA channel bus error */
834 DSP2 = 0 /* DSP chain2 (Tx) interrupt */
835 DSP1 = 0 /* DSP chain1 (Rx) interrupt */
836
837 => 0x00
838
839/*### SDMR */
840/*### SDMA Mask Register */
841/*### Chap. 20.2.3 */
842/*### Offset : 0x0000 090C */
843
844 SBER = 0
845 DSP2 = 0
846 DSP1 = 0 /* All interrupts are masked */
847
848 => 0x00
849
850/*### SDAR */
851/*### SDMA Address Register */
852/*### Chap. 20.2.4 */
853/*### Offset : 0x0000 0904 */
854
855 AR = 0xxxxx xxxx /* current system address */
856
857 => 0xFA20 23AC
858
859/*### IDSRx */
860/*### IDMA Status Register */
861/*### Chap. 20.3.3.2 */
862/*### Offset : IDSR1(0x0000 0910) & IDSR2(0x0000 0918) */
863
864 AD = 0
865 DONE = 0
866 OB = 0
867
868 => 0x00
869
870/*### IDMRx */
871/*### IDMA Mask Register */
872/*### Chap. 20.3.3.3 */
873/*### Offset : IDMR1(0x0000 0914) & IDMR2(0x0000 091C) */
874
875 AD = 0
876 DONE = 0
877 OB = 0
"Das U-Boot" Source Tree