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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 05d492a3235df397da6200294ea2a802749372a8 / . / board / renesas / sh7757lcr / lowlevel_init.S
blob: e4c5ea815e9b2aab7d94ee936413a38b8b1ae8f4 [file] [log] [blame]
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]1/*
2 * Copyright (C) 2011 Renesas Solutions Corp.
3 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]4 * SPDX-License-Identifier: GPL-2.0+
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]5 */
6
7#include <config.h>
8#include <version.h>
9#include <asm/processor.h>
10#include <asm/macro.h>
11
12.macro or32, addr, data
13 mov.l \addr, r1
14 mov.l \data, r0
15 mov.l @r1, r2
16 or r2, r0
17 mov.l r0, @r1
18.endm
19
20.macro wait_DBCMD
21 mov.l DBWAIT_A, r0
22 mov.l @r0, r1
23.endm
24
25 .global lowlevel_init
26 .section .spiboot1.text
27 .align 2
28
29lowlevel_init:
30
31 /*------- GPIO -------*/
32 write8 PGDR_A, PGDR_D /* eMMC power off */
33
34 write16 PACR_A, PACR_D
35 write16 PBCR_A, PBCR_D
36 write16 PCCR_A, PCCR_D
37 write16 PDCR_A, PDCR_D
38 write16 PECR_A, PECR_D
39 write16 PFCR_A, PFCR_D
40 write16 PGCR_A, PGCR_D
41 write16 PHCR_A, PHCR_D
42 write16 PICR_A, PICR_D
43 write16 PJCR_A, PJCR_D
44 write16 PKCR_A, PKCR_D
45 write16 PLCR_A, PLCR_D
46 write16 PMCR_A, PMCR_D
47 write16 PNCR_A, PNCR_D
48 write16 POCR_A, POCR_D
49 write16 PQCR_A, PQCR_D
50 write16 PRCR_A, PRCR_D
51 write16 PSCR_A, PSCR_D
52 write16 PTCR_A, PTCR_D
53 write16 PUCR_A, PUCR_D
54 write16 PVCR_A, PVCR_D
55 write16 PWCR_A, PWCR_D
56 write16 PXCR_A, PXCR_D
57 write16 PYCR_A, PYCR_D
58 write16 PZCR_A, PZCR_D
59 write16 PSEL0_A, PSEL0_D
60 write16 PSEL1_A, PSEL1_D
61 write16 PSEL2_A, PSEL2_D
62 write16 PSEL3_A, PSEL3_D
63 write16 PSEL4_A, PSEL4_D
64 write16 PSEL5_A, PSEL5_D
65 write16 PSEL6_A, PSEL6_D
66 write16 PSEL7_A, PSEL7_D
67 write16 PSEL8_A, PSEL8_D
68
69 bra exit_gpio
70 nop
71
72 .align 4
73
74/*------- GPIO -------*/
75PGDR_A: .long 0xffec0040
76PACR_A: .long 0xffec0000
77PBCR_A: .long 0xffec0002
78PCCR_A: .long 0xffec0004
79PDCR_A: .long 0xffec0006
80PECR_A: .long 0xffec0008
81PFCR_A: .long 0xffec000a
82PGCR_A: .long 0xffec000c
83PHCR_A: .long 0xffec000e
84PICR_A: .long 0xffec0010
85PJCR_A: .long 0xffec0012
86PKCR_A: .long 0xffec0014
87PLCR_A: .long 0xffec0016
88PMCR_A: .long 0xffec0018
89PNCR_A: .long 0xffec001a
90POCR_A: .long 0xffec001c
91PQCR_A: .long 0xffec0020
92PRCR_A: .long 0xffec0022
93PSCR_A: .long 0xffec0024
94PTCR_A: .long 0xffec0026
95PUCR_A: .long 0xffec0028
96PVCR_A: .long 0xffec002a
97PWCR_A: .long 0xffec002c
98PXCR_A: .long 0xffec002e
99PYCR_A: .long 0xffec0030
100PZCR_A: .long 0xffec0032
101PSEL0_A: .long 0xffec0070
102PSEL1_A: .long 0xffec0072
103PSEL2_A: .long 0xffec0074
104PSEL3_A: .long 0xffec0076
105PSEL4_A: .long 0xffec0078
106PSEL5_A: .long 0xffec007a
107PSEL6_A: .long 0xffec007c
108PSEL7_A: .long 0xffec0082
109PSEL8_A: .long 0xffec0084
110
111PGDR_D: .long 0x80
112PACR_D: .long 0x0000
113PBCR_D: .long 0x0001
114PCCR_D: .long 0x0000
115PDCR_D: .long 0x0000
116PECR_D: .long 0x0000
117PFCR_D: .long 0x0000
118PGCR_D: .long 0x0000
119PHCR_D: .long 0x0000
120PICR_D: .long 0x0000
121PJCR_D: .long 0x0000
122PKCR_D: .long 0x0003
123PLCR_D: .long 0x0000
124PMCR_D: .long 0x0000
125PNCR_D: .long 0x0000
126POCR_D: .long 0x0000
127PQCR_D: .long 0xc000
128PRCR_D: .long 0x0000
129PSCR_D: .long 0x0000
130PTCR_D: .long 0x0000
131#if defined(CONFIG_SH7757_OFFSET_SPI)
132PUCR_D: .long 0x0055
133#else
134PUCR_D: .long 0x0000
135#endif
136PVCR_D: .long 0x0000
137PWCR_D: .long 0x0000
138PXCR_D: .long 0x0000
139PYCR_D: .long 0x0000
140PZCR_D: .long 0x0000
141PSEL0_D: .long 0xfe00
142PSEL1_D: .long 0x0000
143PSEL2_D: .long 0x3000
144PSEL3_D: .long 0xff00
145PSEL4_D: .long 0x771f
146PSEL5_D: .long 0x0ffc
147PSEL6_D: .long 0x00ff
148PSEL7_D: .long 0xfc00
149PSEL8_D: .long 0x0000
150
151 .align 2
152
153exit_gpio:
154 mov #0, r14
155 mova 2f, r0
156 mov.l PC_MASK, r1
157 tst r0, r1
158 bf 2f
159
160 bra exit_pmb
161 nop
162
163 .align 2
164
165/* If CPU runs on SDRAM, PC is 0x8???????. */
166PC_MASK: .long 0x20000000
167
1682:
169 mov #1, r14
170
171 mov.l EXPEVT_A, r0
172 mov.l @r0, r0
173 mov.l EXPEVT_POWER_ON_RESET, r1
174 cmp/eq r0, r1
175 bt 1f
176
177 /*
178 * If EXPEVT value is manual reset or tlb multipul-hit,
179 * initialization of DDR3IF is not necessary.
180 */
181 bra exit_ddr
182 nop
183
1841:
185 /* For Core Reset */
186 mov.l DBACEN_A, r0
187 mov.l @r0, r0
188 cmp/eq #0, r0
189 bt 3f
190
191 /*
192 * If DBACEN == 1(DBSC was already enabled), we have to avoid the
193 * initialization of DDR3-SDRAM.
194 */
195 bra exit_ddr
196 nop
197
1983:
199 /*------- DDR3IF -------*/
200 /* oscillation stabilization time */
201 wait_timer WAIT_OSC_TIME
202
203 /* step 3 */
204 write32 DBCMD_A, DBCMD_RSTL_VAL
205 wait_timer WAIT_30US
206
207 /* step 4 */
208 write32 DBCMD_A, DBCMD_PDEN_VAL
209
210 /* step 5 */
211 write32 DBKIND_A, DBKIND_D
212
213 /* step 6 */
214 write32 DBCONF_A, DBCONF_D
215 write32 DBTR0_A, DBTR0_D
216 write32 DBTR1_A, DBTR1_D
217 write32 DBTR2_A, DBTR2_D
218 write32 DBTR3_A, DBTR3_D
219 write32 DBTR4_A, DBTR4_D
220 write32 DBTR5_A, DBTR5_D
221 write32 DBTR6_A, DBTR6_D
222 write32 DBTR7_A, DBTR7_D
223 write32 DBTR8_A, DBTR8_D
224 write32 DBTR9_A, DBTR9_D
225 write32 DBTR10_A, DBTR10_D
226 write32 DBTR11_A, DBTR11_D
227 write32 DBTR12_A, DBTR12_D
228 write32 DBTR13_A, DBTR13_D
229 write32 DBTR14_A, DBTR14_D
230 write32 DBTR15_A, DBTR15_D
231 write32 DBTR16_A, DBTR16_D
232 write32 DBTR17_A, DBTR17_D
233 write32 DBTR18_A, DBTR18_D
234 write32 DBTR19_A, DBTR19_D
235 write32 DBRNK0_A, DBRNK0_D
236
237 /* step 7 */
238 write32 DBPDCNT3_A, DBPDCNT3_D
239
240 /* step 8 */
241 write32 DBPDCNT1_A, DBPDCNT1_D
242 write32 DBPDCNT2_A, DBPDCNT2_D
243 write32 DBPDLCK_A, DBPDLCK_D
244 write32 DBPDRGA_A, DBPDRGA_D
245 write32 DBPDRGD_A, DBPDRGD_D
246
247 /* step 9 */
248 wait_timer WAIT_30US
249
250 /* step 10 */
251 write32 DBPDCNT0_A, DBPDCNT0_D
252
253 /* step 11 */
254 wait_timer WAIT_30US
255 wait_timer WAIT_30US
256
257 /* step 12 */
258 write32 DBCMD_A, DBCMD_WAIT_VAL
259 wait_DBCMD
260
261 /* step 13 */
262 write32 DBCMD_A, DBCMD_RSTH_VAL
263 wait_DBCMD
264
265 /* step 14 */
266 write32 DBCMD_A, DBCMD_WAIT_VAL
267 write32 DBCMD_A, DBCMD_WAIT_VAL
268 write32 DBCMD_A, DBCMD_WAIT_VAL
269 write32 DBCMD_A, DBCMD_WAIT_VAL
270
271 /* step 15 */
272 write32 DBCMD_A, DBCMD_PDXT_VAL
273
274 /* step 16 */
275 write32 DBCMD_A, DBCMD_MRS2_VAL
276
277 /* step 17 */
278 write32 DBCMD_A, DBCMD_MRS3_VAL
279
280 /* step 18 */
281 write32 DBCMD_A, DBCMD_MRS1_VAL
282
283 /* step 19 */
284 write32 DBCMD_A, DBCMD_MRS0_VAL
285
286 /* step 20 */
287 write32 DBCMD_A, DBCMD_ZQCL_VAL
288
289 write32 DBCMD_A, DBCMD_REF_VAL
290 write32 DBCMD_A, DBCMD_REF_VAL
291 wait_DBCMD
292
293 /* step 21 */
294 write32 DBADJ0_A, DBADJ0_D
295 write32 DBADJ1_A, DBADJ1_D
296 write32 DBADJ2_A, DBADJ2_D
297
298 /* step 22 */
299 write32 DBRFCNF0_A, DBRFCNF0_D
300 write32 DBRFCNF1_A, DBRFCNF1_D
301 write32 DBRFCNF2_A, DBRFCNF2_D
302
303 /* step 23 */
304 write32 DBCALCNF_A, DBCALCNF_D
305
306 /* step 24 */
307 write32 DBRFEN_A, DBRFEN_D
308 write32 DBCMD_A, DBCMD_SRXT_VAL
309
310 /* step 25 */
311 write32 DBACEN_A, DBACEN_D
312
313 /* step 26 */
314 wait_DBCMD
315
Nobuhiro Iwamatsu3ed81642011-10-31 13:16:02 +0900[diff] [blame]316#if defined(CONFIG_SH7757LCR_DDR_ECC)
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]317 /* enable DDR-ECC */
318 write32 ECD_ECDEN_A, ECD_ECDEN_D
319 write32 ECD_INTSR_A, ECD_INTSR_D
320 write32 ECD_SPACER_A, ECD_SPACER_D
321 write32 ECD_MCR_A, ECD_MCR_D
Nobuhiro Iwamatsu3ed81642011-10-31 13:16:02 +0900[diff] [blame]322#endif
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]323 bra exit_ddr
324 nop
325
326 .align 4
327
328EXPEVT_A: .long 0xff000024
329EXPEVT_POWER_ON_RESET: .long 0x00000000
330
331/*------- DDR3IF -------*/
332DBCMD_A: .long 0xfe800018
333DBKIND_A: .long 0xfe800020
334DBCONF_A: .long 0xfe800024
335DBTR0_A: .long 0xfe800040
336DBTR1_A: .long 0xfe800044
337DBTR2_A: .long 0xfe800048
338DBTR3_A: .long 0xfe800050
339DBTR4_A: .long 0xfe800054
340DBTR5_A: .long 0xfe800058
341DBTR6_A: .long 0xfe80005c
342DBTR7_A: .long 0xfe800060
343DBTR8_A: .long 0xfe800064
344DBTR9_A: .long 0xfe800068
345DBTR10_A: .long 0xfe80006c
346DBTR11_A: .long 0xfe800070
347DBTR12_A: .long 0xfe800074
348DBTR13_A: .long 0xfe800078
349DBTR14_A: .long 0xfe80007c
350DBTR15_A: .long 0xfe800080
351DBTR16_A: .long 0xfe800084
352DBTR17_A: .long 0xfe800088
353DBTR18_A: .long 0xfe80008c
354DBTR19_A: .long 0xfe800090
355DBRNK0_A: .long 0xfe800100
356DBPDCNT0_A: .long 0xfe800200
357DBPDCNT1_A: .long 0xfe800204
358DBPDCNT2_A: .long 0xfe800208
359DBPDCNT3_A: .long 0xfe80020c
360DBPDLCK_A: .long 0xfe800280
361DBPDRGA_A: .long 0xfe800290
362DBPDRGD_A: .long 0xfe8002a0
363DBADJ0_A: .long 0xfe8000c0
364DBADJ1_A: .long 0xfe8000c4
365DBADJ2_A: .long 0xfe8000c8
366DBRFCNF0_A: .long 0xfe8000e0
367DBRFCNF1_A: .long 0xfe8000e4
368DBRFCNF2_A: .long 0xfe8000e8
369DBCALCNF_A: .long 0xfe8000f4
370DBRFEN_A: .long 0xfe800014
371DBACEN_A: .long 0xfe800010
372DBWAIT_A: .long 0xfe80001c
373
374WAIT_OSC_TIME: .long 6000
375WAIT_30US: .long 13333
376
377DBCMD_RSTL_VAL: .long 0x20000000
378DBCMD_PDEN_VAL: .long 0x1000d73c
379DBCMD_WAIT_VAL: .long 0x0000d73c
380DBCMD_RSTH_VAL: .long 0x2100d73c
381DBCMD_PDXT_VAL: .long 0x110000c8
382DBCMD_MRS0_VAL: .long 0x28000930
383DBCMD_MRS1_VAL: .long 0x29000004
384DBCMD_MRS2_VAL: .long 0x2a000008
385DBCMD_MRS3_VAL: .long 0x2b000000
386DBCMD_ZQCL_VAL: .long 0x03000200
387DBCMD_REF_VAL: .long 0x0c000000
388DBCMD_SRXT_VAL: .long 0x19000000
389DBKIND_D: .long 0x00000007
390DBCONF_D: .long 0x0f030a01
391DBTR0_D: .long 0x00000007
392DBTR1_D: .long 0x00000006
393DBTR2_D: .long 0x00000000
394DBTR3_D: .long 0x00000007
395DBTR4_D: .long 0x00070007
396DBTR5_D: .long 0x0000001b
397DBTR6_D: .long 0x00000014
398DBTR7_D: .long 0x00000005
399DBTR8_D: .long 0x00000015
400DBTR9_D: .long 0x00000006
401DBTR10_D: .long 0x00000008
402DBTR11_D: .long 0x00000007
403DBTR12_D: .long 0x0000000e
404DBTR13_D: .long 0x00000056
405DBTR14_D: .long 0x00000006
406DBTR15_D: .long 0x00000004
407DBTR16_D: .long 0x00150002
408DBTR17_D: .long 0x000c0017
409DBTR18_D: .long 0x00000200
410DBTR19_D: .long 0x00000040
411DBRNK0_D: .long 0x00000001
412DBPDCNT0_D: .long 0x00000001
413DBPDCNT1_D: .long 0x00000001
414DBPDCNT2_D: .long 0x00000000
415DBPDCNT3_D: .long 0x00004010
416DBPDLCK_D: .long 0x0000a55a
417DBPDRGA_D: .long 0x00000028
418DBPDRGD_D: .long 0x00017100
419
420DBADJ0_D: .long 0x00000000
421DBADJ1_D: .long 0x00000000
422DBADJ2_D: .long 0x18061806
423DBRFCNF0_D: .long 0x000001ff
424DBRFCNF1_D: .long 0x08001000
425DBRFCNF2_D: .long 0x00000000
426DBCALCNF_D: .long 0x0000ffff
427DBRFEN_D: .long 0x00000001
428DBACEN_D: .long 0x00000001
429
430/*------- DDR-ECC -------*/
431ECD_ECDEN_A: .long 0xffc1012c
432ECD_ECDEN_D: .long 0x00000001
433ECD_INTSR_A: .long 0xfe900024
434ECD_INTSR_D: .long 0xffffffff
435ECD_SPACER_A: .long 0xfe900018
436ECD_SPACER_D: .long SH7757LCR_SDRAM_ECC_SETTING
437ECD_MCR_A: .long 0xfe900010
438ECD_MCR_D: .long 0x00000001
439
440 .align 2
441exit_ddr:
442
443#if defined(CONFIG_SH_32BIT)
444 /*------- set PMB -------*/
445 write32 PASCR_A, PASCR_29BIT_D
446 write32 MMUCR_A, MMUCR_D
447
448 /*****************************************************************
449 * ent virt phys v sz c wt
450 * 0 0xa0000000 0x00000000 1 128M 0 1
451 * 1 0xa8000000 0x48000000 1 128M 0 1
452 * 5 0x88000000 0x48000000 1 128M 1 1
453 */
454 write32 PMB_ADDR_SPIBOOT_A, PMB_ADDR_SPIBOOT_D
455 write32 PMB_DATA_SPIBOOT_A, PMB_DATA_SPIBOOT_D
456 write32 PMB_ADDR_DDR_C1_A, PMB_ADDR_DDR_C1_D
457 write32 PMB_DATA_DDR_C1_A, PMB_DATA_DDR_C1_D
458 write32 PMB_ADDR_DDR_N1_A, PMB_ADDR_DDR_N1_D
459 write32 PMB_DATA_DDR_N1_A, PMB_DATA_DDR_N1_D
460
461 write32 PMB_ADDR_ENTRY2, PMB_ADDR_NOT_USE_D
462 write32 PMB_ADDR_ENTRY3, PMB_ADDR_NOT_USE_D
463 write32 PMB_ADDR_ENTRY4, PMB_ADDR_NOT_USE_D
464 write32 PMB_ADDR_ENTRY6, PMB_ADDR_NOT_USE_D
465 write32 PMB_ADDR_ENTRY7, PMB_ADDR_NOT_USE_D
466 write32 PMB_ADDR_ENTRY8, PMB_ADDR_NOT_USE_D
467 write32 PMB_ADDR_ENTRY9, PMB_ADDR_NOT_USE_D
468 write32 PMB_ADDR_ENTRY10, PMB_ADDR_NOT_USE_D
469 write32 PMB_ADDR_ENTRY11, PMB_ADDR_NOT_USE_D
470 write32 PMB_ADDR_ENTRY12, PMB_ADDR_NOT_USE_D
471 write32 PMB_ADDR_ENTRY13, PMB_ADDR_NOT_USE_D
472 write32 PMB_ADDR_ENTRY14, PMB_ADDR_NOT_USE_D
473 write32 PMB_ADDR_ENTRY15, PMB_ADDR_NOT_USE_D
474
475 write32 PASCR_A, PASCR_INIT
476 mov.l DUMMY_ADDR, r0
477 icbi @r0
478#endif /* if defined(CONFIG_SH_32BIT) */
479
480exit_pmb:
481 /* CPU is running on ILRAM? */
482 mov r14, r0
483 tst #1, r0
484 bt 1f
485
486 mov.l _bss_start, r15
487 mov.l _spiboot_main, r0
488100: bsrf r0
489 nop
490
491 .align 2
492_spiboot_main: .long (spiboot_main - (100b + 4))
493_bss_start: .long bss_start
494
4951:
496
497 write32 CCR_A, CCR_D
498
499 rts
500 nop
501
502 .align 4
503
504#if defined(CONFIG_SH_32BIT)
505/*------- set PMB -------*/
506PMB_ADDR_SPIBOOT_A: .long PMB_ADDR_BASE(0)
507PMB_ADDR_DDR_N1_A: .long PMB_ADDR_BASE(1)
508PMB_ADDR_DDR_C1_A: .long PMB_ADDR_BASE(5)
509PMB_ADDR_ENTRY2: .long PMB_ADDR_BASE(2)
510PMB_ADDR_ENTRY3: .long PMB_ADDR_BASE(3)
511PMB_ADDR_ENTRY4: .long PMB_ADDR_BASE(4)
512PMB_ADDR_ENTRY6: .long PMB_ADDR_BASE(6)
513PMB_ADDR_ENTRY7: .long PMB_ADDR_BASE(7)
514PMB_ADDR_ENTRY8: .long PMB_ADDR_BASE(8)
515PMB_ADDR_ENTRY9: .long PMB_ADDR_BASE(9)
516PMB_ADDR_ENTRY10: .long PMB_ADDR_BASE(10)
517PMB_ADDR_ENTRY11: .long PMB_ADDR_BASE(11)
518PMB_ADDR_ENTRY12: .long PMB_ADDR_BASE(12)
519PMB_ADDR_ENTRY13: .long PMB_ADDR_BASE(13)
520PMB_ADDR_ENTRY14: .long PMB_ADDR_BASE(14)
521PMB_ADDR_ENTRY15: .long PMB_ADDR_BASE(15)
522
523PMB_ADDR_SPIBOOT_D: .long mk_pmb_addr_val(0xa0)
524PMB_ADDR_DDR_C1_D: .long mk_pmb_addr_val(0x88)
525PMB_ADDR_DDR_N1_D: .long mk_pmb_addr_val(0xa8)
526PMB_ADDR_NOT_USE_D: .long 0x00000000
527
528PMB_DATA_SPIBOOT_A: .long PMB_DATA_BASE(0)
529PMB_DATA_DDR_N1_A: .long PMB_DATA_BASE(1)
530PMB_DATA_DDR_C1_A: .long PMB_DATA_BASE(5)
531
532/* ppn ub v s1 s0 c wt */
533PMB_DATA_SPIBOOT_D: .long mk_pmb_data_val(0x00, 0, 1, 1, 0, 0, 1)
534PMB_DATA_DDR_C1_D: .long mk_pmb_data_val(0x48, 0, 1, 1, 0, 1, 1)
535PMB_DATA_DDR_N1_D: .long mk_pmb_data_val(0x48, 1, 1, 1, 0, 0, 1)
536
537PASCR_A: .long 0xff000070
538DUMMY_ADDR: .long 0xa0000000
539PASCR_29BIT_D: .long 0x00000000
540PASCR_INIT: .long 0x80000080
541MMUCR_A: .long 0xff000010
542MMUCR_D: .long 0x00000004 /* clear ITLB */
543#endif /* CONFIG_SH_32BIT */
544
545CCR_A: .long CCR
546CCR_D: .long CCR_CACHE_INIT