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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 55daf1c45c6fee60840842f86796368a766c01e9 / . / board / renesas / sh7757lcr / lowlevel_init.S
blob: ee288f807f5eff17fa8fd839931fa9f755a07c66 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0+ */
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]2/*
3 * Copyright (C) 2011 Renesas Solutions Corp.
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]4 */
5
6#include <config.h>
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]7#include <asm/processor.h>
8#include <asm/macro.h>
9
10.macro or32, addr, data
11 mov.l \addr, r1
12 mov.l \data, r0
13 mov.l @r1, r2
14 or r2, r0
15 mov.l r0, @r1
16.endm
17
18.macro wait_DBCMD
19 mov.l DBWAIT_A, r0
20 mov.l @r0, r1
21.endm
22
23 .global lowlevel_init
24 .section .spiboot1.text
25 .align 2
26
27lowlevel_init:
28
29 /*------- GPIO -------*/
30 write8 PGDR_A, PGDR_D /* eMMC power off */
31
32 write16 PACR_A, PACR_D
33 write16 PBCR_A, PBCR_D
34 write16 PCCR_A, PCCR_D
35 write16 PDCR_A, PDCR_D
36 write16 PECR_A, PECR_D
37 write16 PFCR_A, PFCR_D
38 write16 PGCR_A, PGCR_D
39 write16 PHCR_A, PHCR_D
40 write16 PICR_A, PICR_D
41 write16 PJCR_A, PJCR_D
42 write16 PKCR_A, PKCR_D
43 write16 PLCR_A, PLCR_D
44 write16 PMCR_A, PMCR_D
45 write16 PNCR_A, PNCR_D
46 write16 POCR_A, POCR_D
47 write16 PQCR_A, PQCR_D
48 write16 PRCR_A, PRCR_D
49 write16 PSCR_A, PSCR_D
50 write16 PTCR_A, PTCR_D
51 write16 PUCR_A, PUCR_D
52 write16 PVCR_A, PVCR_D
53 write16 PWCR_A, PWCR_D
54 write16 PXCR_A, PXCR_D
55 write16 PYCR_A, PYCR_D
56 write16 PZCR_A, PZCR_D
57 write16 PSEL0_A, PSEL0_D
58 write16 PSEL1_A, PSEL1_D
59 write16 PSEL2_A, PSEL2_D
60 write16 PSEL3_A, PSEL3_D
61 write16 PSEL4_A, PSEL4_D
62 write16 PSEL5_A, PSEL5_D
63 write16 PSEL6_A, PSEL6_D
64 write16 PSEL7_A, PSEL7_D
65 write16 PSEL8_A, PSEL8_D
66
67 bra exit_gpio
68 nop
69
70 .align 4
71
72/*------- GPIO -------*/
73PGDR_A: .long 0xffec0040
74PACR_A: .long 0xffec0000
75PBCR_A: .long 0xffec0002
76PCCR_A: .long 0xffec0004
77PDCR_A: .long 0xffec0006
78PECR_A: .long 0xffec0008
79PFCR_A: .long 0xffec000a
80PGCR_A: .long 0xffec000c
81PHCR_A: .long 0xffec000e
82PICR_A: .long 0xffec0010
83PJCR_A: .long 0xffec0012
84PKCR_A: .long 0xffec0014
85PLCR_A: .long 0xffec0016
86PMCR_A: .long 0xffec0018
87PNCR_A: .long 0xffec001a
88POCR_A: .long 0xffec001c
89PQCR_A: .long 0xffec0020
90PRCR_A: .long 0xffec0022
91PSCR_A: .long 0xffec0024
92PTCR_A: .long 0xffec0026
93PUCR_A: .long 0xffec0028
94PVCR_A: .long 0xffec002a
95PWCR_A: .long 0xffec002c
96PXCR_A: .long 0xffec002e
97PYCR_A: .long 0xffec0030
98PZCR_A: .long 0xffec0032
99PSEL0_A: .long 0xffec0070
100PSEL1_A: .long 0xffec0072
101PSEL2_A: .long 0xffec0074
102PSEL3_A: .long 0xffec0076
103PSEL4_A: .long 0xffec0078
104PSEL5_A: .long 0xffec007a
105PSEL6_A: .long 0xffec007c
106PSEL7_A: .long 0xffec0082
107PSEL8_A: .long 0xffec0084
108
109PGDR_D: .long 0x80
110PACR_D: .long 0x0000
111PBCR_D: .long 0x0001
112PCCR_D: .long 0x0000
113PDCR_D: .long 0x0000
114PECR_D: .long 0x0000
115PFCR_D: .long 0x0000
116PGCR_D: .long 0x0000
117PHCR_D: .long 0x0000
118PICR_D: .long 0x0000
119PJCR_D: .long 0x0000
120PKCR_D: .long 0x0003
121PLCR_D: .long 0x0000
122PMCR_D: .long 0x0000
123PNCR_D: .long 0x0000
124POCR_D: .long 0x0000
125PQCR_D: .long 0xc000
126PRCR_D: .long 0x0000
127PSCR_D: .long 0x0000
128PTCR_D: .long 0x0000
129#if defined(CONFIG_SH7757_OFFSET_SPI)
130PUCR_D: .long 0x0055
131#else
132PUCR_D: .long 0x0000
133#endif
134PVCR_D: .long 0x0000
135PWCR_D: .long 0x0000
136PXCR_D: .long 0x0000
137PYCR_D: .long 0x0000
138PZCR_D: .long 0x0000
139PSEL0_D: .long 0xfe00
140PSEL1_D: .long 0x0000
141PSEL2_D: .long 0x3000
142PSEL3_D: .long 0xff00
143PSEL4_D: .long 0x771f
144PSEL5_D: .long 0x0ffc
145PSEL6_D: .long 0x00ff
146PSEL7_D: .long 0xfc00
147PSEL8_D: .long 0x0000
148
149 .align 2
150
151exit_gpio:
152 mov #0, r14
153 mova 2f, r0
154 mov.l PC_MASK, r1
155 tst r0, r1
156 bf 2f
157
158 bra exit_pmb
159 nop
160
161 .align 2
162
163/* If CPU runs on SDRAM, PC is 0x8???????. */
164PC_MASK: .long 0x20000000
165
1662:
167 mov #1, r14
168
169 mov.l EXPEVT_A, r0
170 mov.l @r0, r0
171 mov.l EXPEVT_POWER_ON_RESET, r1
172 cmp/eq r0, r1
173 bt 1f
174
175 /*
176 * If EXPEVT value is manual reset or tlb multipul-hit,
177 * initialization of DDR3IF is not necessary.
178 */
179 bra exit_ddr
180 nop
181
1821:
183 /* For Core Reset */
184 mov.l DBACEN_A, r0
185 mov.l @r0, r0
186 cmp/eq #0, r0
187 bt 3f
188
189 /*
190 * If DBACEN == 1(DBSC was already enabled), we have to avoid the
191 * initialization of DDR3-SDRAM.
192 */
193 bra exit_ddr
194 nop
195
1963:
197 /*------- DDR3IF -------*/
198 /* oscillation stabilization time */
199 wait_timer WAIT_OSC_TIME
200
201 /* step 3 */
202 write32 DBCMD_A, DBCMD_RSTL_VAL
203 wait_timer WAIT_30US
204
205 /* step 4 */
206 write32 DBCMD_A, DBCMD_PDEN_VAL
207
208 /* step 5 */
209 write32 DBKIND_A, DBKIND_D
210
211 /* step 6 */
212 write32 DBCONF_A, DBCONF_D
213 write32 DBTR0_A, DBTR0_D
214 write32 DBTR1_A, DBTR1_D
215 write32 DBTR2_A, DBTR2_D
216 write32 DBTR3_A, DBTR3_D
217 write32 DBTR4_A, DBTR4_D
218 write32 DBTR5_A, DBTR5_D
219 write32 DBTR6_A, DBTR6_D
220 write32 DBTR7_A, DBTR7_D
221 write32 DBTR8_A, DBTR8_D
222 write32 DBTR9_A, DBTR9_D
223 write32 DBTR10_A, DBTR10_D
224 write32 DBTR11_A, DBTR11_D
225 write32 DBTR12_A, DBTR12_D
226 write32 DBTR13_A, DBTR13_D
227 write32 DBTR14_A, DBTR14_D
228 write32 DBTR15_A, DBTR15_D
229 write32 DBTR16_A, DBTR16_D
230 write32 DBTR17_A, DBTR17_D
231 write32 DBTR18_A, DBTR18_D
232 write32 DBTR19_A, DBTR19_D
233 write32 DBRNK0_A, DBRNK0_D
234
235 /* step 7 */
236 write32 DBPDCNT3_A, DBPDCNT3_D
237
238 /* step 8 */
239 write32 DBPDCNT1_A, DBPDCNT1_D
240 write32 DBPDCNT2_A, DBPDCNT2_D
241 write32 DBPDLCK_A, DBPDLCK_D
242 write32 DBPDRGA_A, DBPDRGA_D
243 write32 DBPDRGD_A, DBPDRGD_D
244
245 /* step 9 */
246 wait_timer WAIT_30US
247
248 /* step 10 */
249 write32 DBPDCNT0_A, DBPDCNT0_D
250
251 /* step 11 */
252 wait_timer WAIT_30US
253 wait_timer WAIT_30US
254
255 /* step 12 */
256 write32 DBCMD_A, DBCMD_WAIT_VAL
257 wait_DBCMD
258
259 /* step 13 */
260 write32 DBCMD_A, DBCMD_RSTH_VAL
261 wait_DBCMD
262
263 /* step 14 */
264 write32 DBCMD_A, DBCMD_WAIT_VAL
265 write32 DBCMD_A, DBCMD_WAIT_VAL
266 write32 DBCMD_A, DBCMD_WAIT_VAL
267 write32 DBCMD_A, DBCMD_WAIT_VAL
268
269 /* step 15 */
270 write32 DBCMD_A, DBCMD_PDXT_VAL
271
272 /* step 16 */
273 write32 DBCMD_A, DBCMD_MRS2_VAL
274
275 /* step 17 */
276 write32 DBCMD_A, DBCMD_MRS3_VAL
277
278 /* step 18 */
279 write32 DBCMD_A, DBCMD_MRS1_VAL
280
281 /* step 19 */
282 write32 DBCMD_A, DBCMD_MRS0_VAL
283
284 /* step 20 */
285 write32 DBCMD_A, DBCMD_ZQCL_VAL
286
287 write32 DBCMD_A, DBCMD_REF_VAL
288 write32 DBCMD_A, DBCMD_REF_VAL
289 wait_DBCMD
290
291 /* step 21 */
292 write32 DBADJ0_A, DBADJ0_D
293 write32 DBADJ1_A, DBADJ1_D
294 write32 DBADJ2_A, DBADJ2_D
295
296 /* step 22 */
297 write32 DBRFCNF0_A, DBRFCNF0_D
298 write32 DBRFCNF1_A, DBRFCNF1_D
299 write32 DBRFCNF2_A, DBRFCNF2_D
300
301 /* step 23 */
302 write32 DBCALCNF_A, DBCALCNF_D
303
304 /* step 24 */
305 write32 DBRFEN_A, DBRFEN_D
306 write32 DBCMD_A, DBCMD_SRXT_VAL
307
308 /* step 25 */
309 write32 DBACEN_A, DBACEN_D
310
311 /* step 26 */
312 wait_DBCMD
313
Nobuhiro Iwamatsu3ed81642011-10-31 13:16:02 +0900[diff] [blame]314#if defined(CONFIG_SH7757LCR_DDR_ECC)
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]315 /* enable DDR-ECC */
316 write32 ECD_ECDEN_A, ECD_ECDEN_D
317 write32 ECD_INTSR_A, ECD_INTSR_D
318 write32 ECD_SPACER_A, ECD_SPACER_D
319 write32 ECD_MCR_A, ECD_MCR_D
Nobuhiro Iwamatsu3ed81642011-10-31 13:16:02 +0900[diff] [blame]320#endif
Yoshihiro Shimoda8e9c8972011-02-02 10:05:36 +0900[diff] [blame]321 bra exit_ddr
322 nop
323
324 .align 4
325
326EXPEVT_A: .long 0xff000024
327EXPEVT_POWER_ON_RESET: .long 0x00000000
328
329/*------- DDR3IF -------*/
330DBCMD_A: .long 0xfe800018
331DBKIND_A: .long 0xfe800020
332DBCONF_A: .long 0xfe800024
333DBTR0_A: .long 0xfe800040
334DBTR1_A: .long 0xfe800044
335DBTR2_A: .long 0xfe800048
336DBTR3_A: .long 0xfe800050
337DBTR4_A: .long 0xfe800054
338DBTR5_A: .long 0xfe800058
339DBTR6_A: .long 0xfe80005c
340DBTR7_A: .long 0xfe800060
341DBTR8_A: .long 0xfe800064
342DBTR9_A: .long 0xfe800068
343DBTR10_A: .long 0xfe80006c
344DBTR11_A: .long 0xfe800070
345DBTR12_A: .long 0xfe800074
346DBTR13_A: .long 0xfe800078
347DBTR14_A: .long 0xfe80007c
348DBTR15_A: .long 0xfe800080
349DBTR16_A: .long 0xfe800084
350DBTR17_A: .long 0xfe800088
351DBTR18_A: .long 0xfe80008c
352DBTR19_A: .long 0xfe800090
353DBRNK0_A: .long 0xfe800100
354DBPDCNT0_A: .long 0xfe800200
355DBPDCNT1_A: .long 0xfe800204
356DBPDCNT2_A: .long 0xfe800208
357DBPDCNT3_A: .long 0xfe80020c
358DBPDLCK_A: .long 0xfe800280
359DBPDRGA_A: .long 0xfe800290
360DBPDRGD_A: .long 0xfe8002a0
361DBADJ0_A: .long 0xfe8000c0
362DBADJ1_A: .long 0xfe8000c4
363DBADJ2_A: .long 0xfe8000c8
364DBRFCNF0_A: .long 0xfe8000e0
365DBRFCNF1_A: .long 0xfe8000e4
366DBRFCNF2_A: .long 0xfe8000e8
367DBCALCNF_A: .long 0xfe8000f4
368DBRFEN_A: .long 0xfe800014
369DBACEN_A: .long 0xfe800010
370DBWAIT_A: .long 0xfe80001c
371
372WAIT_OSC_TIME: .long 6000
373WAIT_30US: .long 13333
374
375DBCMD_RSTL_VAL: .long 0x20000000
376DBCMD_PDEN_VAL: .long 0x1000d73c
377DBCMD_WAIT_VAL: .long 0x0000d73c
378DBCMD_RSTH_VAL: .long 0x2100d73c
379DBCMD_PDXT_VAL: .long 0x110000c8
380DBCMD_MRS0_VAL: .long 0x28000930
381DBCMD_MRS1_VAL: .long 0x29000004
382DBCMD_MRS2_VAL: .long 0x2a000008
383DBCMD_MRS3_VAL: .long 0x2b000000
384DBCMD_ZQCL_VAL: .long 0x03000200
385DBCMD_REF_VAL: .long 0x0c000000
386DBCMD_SRXT_VAL: .long 0x19000000
387DBKIND_D: .long 0x00000007
388DBCONF_D: .long 0x0f030a01
389DBTR0_D: .long 0x00000007
390DBTR1_D: .long 0x00000006
391DBTR2_D: .long 0x00000000
392DBTR3_D: .long 0x00000007
393DBTR4_D: .long 0x00070007
394DBTR5_D: .long 0x0000001b
395DBTR6_D: .long 0x00000014
396DBTR7_D: .long 0x00000005
397DBTR8_D: .long 0x00000015
398DBTR9_D: .long 0x00000006
399DBTR10_D: .long 0x00000008
400DBTR11_D: .long 0x00000007
401DBTR12_D: .long 0x0000000e
402DBTR13_D: .long 0x00000056
403DBTR14_D: .long 0x00000006
404DBTR15_D: .long 0x00000004
405DBTR16_D: .long 0x00150002
406DBTR17_D: .long 0x000c0017
407DBTR18_D: .long 0x00000200
408DBTR19_D: .long 0x00000040
409DBRNK0_D: .long 0x00000001
410DBPDCNT0_D: .long 0x00000001
411DBPDCNT1_D: .long 0x00000001
412DBPDCNT2_D: .long 0x00000000
413DBPDCNT3_D: .long 0x00004010
414DBPDLCK_D: .long 0x0000a55a
415DBPDRGA_D: .long 0x00000028
416DBPDRGD_D: .long 0x00017100
417
418DBADJ0_D: .long 0x00000000
419DBADJ1_D: .long 0x00000000
420DBADJ2_D: .long 0x18061806
421DBRFCNF0_D: .long 0x000001ff
422DBRFCNF1_D: .long 0x08001000
423DBRFCNF2_D: .long 0x00000000
424DBCALCNF_D: .long 0x0000ffff
425DBRFEN_D: .long 0x00000001
426DBACEN_D: .long 0x00000001
427
428/*------- DDR-ECC -------*/
429ECD_ECDEN_A: .long 0xffc1012c
430ECD_ECDEN_D: .long 0x00000001
431ECD_INTSR_A: .long 0xfe900024
432ECD_INTSR_D: .long 0xffffffff
433ECD_SPACER_A: .long 0xfe900018
434ECD_SPACER_D: .long SH7757LCR_SDRAM_ECC_SETTING
435ECD_MCR_A: .long 0xfe900010
436ECD_MCR_D: .long 0x00000001
437
438 .align 2
439exit_ddr:
440
441#if defined(CONFIG_SH_32BIT)
442 /*------- set PMB -------*/
443 write32 PASCR_A, PASCR_29BIT_D
444 write32 MMUCR_A, MMUCR_D
445
446 /*****************************************************************
447 * ent virt phys v sz c wt
448 * 0 0xa0000000 0x00000000 1 128M 0 1
449 * 1 0xa8000000 0x48000000 1 128M 0 1
450 * 5 0x88000000 0x48000000 1 128M 1 1
451 */
452 write32 PMB_ADDR_SPIBOOT_A, PMB_ADDR_SPIBOOT_D
453 write32 PMB_DATA_SPIBOOT_A, PMB_DATA_SPIBOOT_D
454 write32 PMB_ADDR_DDR_C1_A, PMB_ADDR_DDR_C1_D
455 write32 PMB_DATA_DDR_C1_A, PMB_DATA_DDR_C1_D
456 write32 PMB_ADDR_DDR_N1_A, PMB_ADDR_DDR_N1_D
457 write32 PMB_DATA_DDR_N1_A, PMB_DATA_DDR_N1_D
458
459 write32 PMB_ADDR_ENTRY2, PMB_ADDR_NOT_USE_D
460 write32 PMB_ADDR_ENTRY3, PMB_ADDR_NOT_USE_D
461 write32 PMB_ADDR_ENTRY4, PMB_ADDR_NOT_USE_D
462 write32 PMB_ADDR_ENTRY6, PMB_ADDR_NOT_USE_D
463 write32 PMB_ADDR_ENTRY7, PMB_ADDR_NOT_USE_D
464 write32 PMB_ADDR_ENTRY8, PMB_ADDR_NOT_USE_D
465 write32 PMB_ADDR_ENTRY9, PMB_ADDR_NOT_USE_D
466 write32 PMB_ADDR_ENTRY10, PMB_ADDR_NOT_USE_D
467 write32 PMB_ADDR_ENTRY11, PMB_ADDR_NOT_USE_D
468 write32 PMB_ADDR_ENTRY12, PMB_ADDR_NOT_USE_D
469 write32 PMB_ADDR_ENTRY13, PMB_ADDR_NOT_USE_D
470 write32 PMB_ADDR_ENTRY14, PMB_ADDR_NOT_USE_D
471 write32 PMB_ADDR_ENTRY15, PMB_ADDR_NOT_USE_D
472
473 write32 PASCR_A, PASCR_INIT
474 mov.l DUMMY_ADDR, r0
475 icbi @r0
476#endif /* if defined(CONFIG_SH_32BIT) */
477
478exit_pmb:
479 /* CPU is running on ILRAM? */
480 mov r14, r0
481 tst #1, r0
482 bt 1f
483
484 mov.l _bss_start, r15
485 mov.l _spiboot_main, r0
486100: bsrf r0
487 nop
488
489 .align 2
490_spiboot_main: .long (spiboot_main - (100b + 4))
491_bss_start: .long bss_start
492
4931:
494
495 write32 CCR_A, CCR_D
496
497 rts
498 nop
499
500 .align 4
501
502#if defined(CONFIG_SH_32BIT)
503/*------- set PMB -------*/
504PMB_ADDR_SPIBOOT_A: .long PMB_ADDR_BASE(0)
505PMB_ADDR_DDR_N1_A: .long PMB_ADDR_BASE(1)
506PMB_ADDR_DDR_C1_A: .long PMB_ADDR_BASE(5)
507PMB_ADDR_ENTRY2: .long PMB_ADDR_BASE(2)
508PMB_ADDR_ENTRY3: .long PMB_ADDR_BASE(3)
509PMB_ADDR_ENTRY4: .long PMB_ADDR_BASE(4)
510PMB_ADDR_ENTRY6: .long PMB_ADDR_BASE(6)
511PMB_ADDR_ENTRY7: .long PMB_ADDR_BASE(7)
512PMB_ADDR_ENTRY8: .long PMB_ADDR_BASE(8)
513PMB_ADDR_ENTRY9: .long PMB_ADDR_BASE(9)
514PMB_ADDR_ENTRY10: .long PMB_ADDR_BASE(10)
515PMB_ADDR_ENTRY11: .long PMB_ADDR_BASE(11)
516PMB_ADDR_ENTRY12: .long PMB_ADDR_BASE(12)
517PMB_ADDR_ENTRY13: .long PMB_ADDR_BASE(13)
518PMB_ADDR_ENTRY14: .long PMB_ADDR_BASE(14)
519PMB_ADDR_ENTRY15: .long PMB_ADDR_BASE(15)
520
521PMB_ADDR_SPIBOOT_D: .long mk_pmb_addr_val(0xa0)
522PMB_ADDR_DDR_C1_D: .long mk_pmb_addr_val(0x88)
523PMB_ADDR_DDR_N1_D: .long mk_pmb_addr_val(0xa8)
524PMB_ADDR_NOT_USE_D: .long 0x00000000
525
526PMB_DATA_SPIBOOT_A: .long PMB_DATA_BASE(0)
527PMB_DATA_DDR_N1_A: .long PMB_DATA_BASE(1)
528PMB_DATA_DDR_C1_A: .long PMB_DATA_BASE(5)
529
530/* ppn ub v s1 s0 c wt */
531PMB_DATA_SPIBOOT_D: .long mk_pmb_data_val(0x00, 0, 1, 1, 0, 0, 1)
532PMB_DATA_DDR_C1_D: .long mk_pmb_data_val(0x48, 0, 1, 1, 0, 1, 1)
533PMB_DATA_DDR_N1_D: .long mk_pmb_data_val(0x48, 1, 1, 1, 0, 0, 1)
534
535PASCR_A: .long 0xff000070
536DUMMY_ADDR: .long 0xa0000000
537PASCR_29BIT_D: .long 0x00000000
538PASCR_INIT: .long 0x80000080
539MMUCR_A: .long 0xff000010
540MMUCR_D: .long 0x00000004 /* clear ITLB */
541#endif /* CONFIG_SH_32BIT */
542
543CCR_A: .long CCR
544CCR_D: .long CCR_CACHE_INIT