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1/*
2 * linux/arch/arm/mach-omap2/io.c
3 *
4 * OMAP2 I/O mapping code
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Copyright (C) 2007-2009 Texas Instruments
8 *
9 * Author:
10 * Juha Yrjola <juha.yrjola@nokia.com>
11 * Syed Khasim <x0khasim@ti.com>
12 *
13 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License version 2 as
17 * published by the Free Software Foundation.
18 */
19#include <linux/module.h>
20#include <linux/kernel.h>
21#include <linux/init.h>
22#include <linux/io.h>
23#include <linux/clk.h>
24
25#include <asm/tlb.h>
26#include <asm/mach/map.h>
27
28#include <linux/omap-dma.h>
29
30#include "omap_hwmod.h"
31#include "soc.h"
32#include "iomap.h"
33#include "voltage.h"
34#include "powerdomain.h"
35#include "clockdomain.h"
36#include "common.h"
37#include "clock.h"
38#include "clock2xxx.h"
39#include "clock3xxx.h"
40#include "clock44xx.h"
41#include "omap-pm.h"
42#include "sdrc.h"
43#include "control.h"
44#include "serial.h"
45#include "sram.h"
46#include "cm2xxx.h"
47#include "cm3xxx.h"
48#include "prm.h"
49#include "cm.h"
50#include "prcm_mpu44xx.h"
51#include "prminst44xx.h"
52#include "cminst44xx.h"
53#include "prm2xxx.h"
54#include "prm3xxx.h"
55#include "prm44xx.h"
56
57/*
58 * omap_clk_soc_init: points to a function that does the SoC-specific
59 * clock initializations
60 */
61static int (*omap_clk_soc_init)(void);
62
63/*
64 * The machine specific code may provide the extra mapping besides the
65 * default mapping provided here.
66 */
67
68#if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
69static struct map_desc omap24xx_io_desc[] __initdata = {
70 {
71 .virtual = L3_24XX_VIRT,
72 .pfn = __phys_to_pfn(L3_24XX_PHYS),
73 .length = L3_24XX_SIZE,
74 .type = MT_DEVICE
75 },
76 {
77 .virtual = L4_24XX_VIRT,
78 .pfn = __phys_to_pfn(L4_24XX_PHYS),
79 .length = L4_24XX_SIZE,
80 .type = MT_DEVICE
81 },
82};
83
84#ifdef CONFIG_SOC_OMAP2420
85static struct map_desc omap242x_io_desc[] __initdata = {
86 {
87 .virtual = DSP_MEM_2420_VIRT,
88 .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS),
89 .length = DSP_MEM_2420_SIZE,
90 .type = MT_DEVICE
91 },
92 {
93 .virtual = DSP_IPI_2420_VIRT,
94 .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS),
95 .length = DSP_IPI_2420_SIZE,
96 .type = MT_DEVICE
97 },
98 {
99 .virtual = DSP_MMU_2420_VIRT,
100 .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS),
101 .length = DSP_MMU_2420_SIZE,
102 .type = MT_DEVICE
103 },
104};
105
106#endif
107
108#ifdef CONFIG_SOC_OMAP2430
109static struct map_desc omap243x_io_desc[] __initdata = {
110 {
111 .virtual = L4_WK_243X_VIRT,
112 .pfn = __phys_to_pfn(L4_WK_243X_PHYS),
113 .length = L4_WK_243X_SIZE,
114 .type = MT_DEVICE
115 },
116 {
117 .virtual = OMAP243X_GPMC_VIRT,
118 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS),
119 .length = OMAP243X_GPMC_SIZE,
120 .type = MT_DEVICE
121 },
122 {
123 .virtual = OMAP243X_SDRC_VIRT,
124 .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS),
125 .length = OMAP243X_SDRC_SIZE,
126 .type = MT_DEVICE
127 },
128 {
129 .virtual = OMAP243X_SMS_VIRT,
130 .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS),
131 .length = OMAP243X_SMS_SIZE,
132 .type = MT_DEVICE
133 },
134};
135#endif
136#endif
137
138#ifdef CONFIG_ARCH_OMAP3
139static struct map_desc omap34xx_io_desc[] __initdata = {
140 {
141 .virtual = L3_34XX_VIRT,
142 .pfn = __phys_to_pfn(L3_34XX_PHYS),
143 .length = L3_34XX_SIZE,
144 .type = MT_DEVICE
145 },
146 {
147 .virtual = L4_34XX_VIRT,
148 .pfn = __phys_to_pfn(L4_34XX_PHYS),
149 .length = L4_34XX_SIZE,
150 .type = MT_DEVICE
151 },
152 {
153 .virtual = OMAP34XX_GPMC_VIRT,
154 .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
155 .length = OMAP34XX_GPMC_SIZE,
156 .type = MT_DEVICE
157 },
158 {
159 .virtual = OMAP343X_SMS_VIRT,
160 .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS),
161 .length = OMAP343X_SMS_SIZE,
162 .type = MT_DEVICE
163 },
164 {
165 .virtual = OMAP343X_SDRC_VIRT,
166 .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS),
167 .length = OMAP343X_SDRC_SIZE,
168 .type = MT_DEVICE
169 },
170 {
171 .virtual = L4_PER_34XX_VIRT,
172 .pfn = __phys_to_pfn(L4_PER_34XX_PHYS),
173 .length = L4_PER_34XX_SIZE,
174 .type = MT_DEVICE
175 },
176 {
177 .virtual = L4_EMU_34XX_VIRT,
178 .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS),
179 .length = L4_EMU_34XX_SIZE,
180 .type = MT_DEVICE
181 },
182};
183#endif
184
185#ifdef CONFIG_SOC_TI81XX
186static struct map_desc omapti81xx_io_desc[] __initdata = {
187 {
188 .virtual = L4_34XX_VIRT,
189 .pfn = __phys_to_pfn(L4_34XX_PHYS),
190 .length = L4_34XX_SIZE,
191 .type = MT_DEVICE
192 }
193};
194#endif
195
196#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
197static struct map_desc omapam33xx_io_desc[] __initdata = {
198 {
199 .virtual = L4_34XX_VIRT,
200 .pfn = __phys_to_pfn(L4_34XX_PHYS),
201 .length = L4_34XX_SIZE,
202 .type = MT_DEVICE
203 },
204 {
205 .virtual = L4_WK_AM33XX_VIRT,
206 .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS),
207 .length = L4_WK_AM33XX_SIZE,
208 .type = MT_DEVICE
209 }
210};
211#endif
212
213#ifdef CONFIG_ARCH_OMAP4
214static struct map_desc omap44xx_io_desc[] __initdata = {
215 {
216 .virtual = L3_44XX_VIRT,
217 .pfn = __phys_to_pfn(L3_44XX_PHYS),
218 .length = L3_44XX_SIZE,
219 .type = MT_DEVICE,
220 },
221 {
222 .virtual = L4_44XX_VIRT,
223 .pfn = __phys_to_pfn(L4_44XX_PHYS),
224 .length = L4_44XX_SIZE,
225 .type = MT_DEVICE,
226 },
227 {
228 .virtual = L4_PER_44XX_VIRT,
229 .pfn = __phys_to_pfn(L4_PER_44XX_PHYS),
230 .length = L4_PER_44XX_SIZE,
231 .type = MT_DEVICE,
232 },
233#ifdef CONFIG_OMAP4_ERRATA_I688
234 {
235 .virtual = OMAP4_SRAM_VA,
236 .pfn = __phys_to_pfn(OMAP4_SRAM_PA),
237 .length = PAGE_SIZE,
238 .type = MT_MEMORY_RW_SO,
239 },
240#endif
241
242};
243#endif
244
245#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
246static struct map_desc omap54xx_io_desc[] __initdata = {
247 {
248 .virtual = L3_54XX_VIRT,
249 .pfn = __phys_to_pfn(L3_54XX_PHYS),
250 .length = L3_54XX_SIZE,
251 .type = MT_DEVICE,
252 },
253 {
254 .virtual = L4_54XX_VIRT,
255 .pfn = __phys_to_pfn(L4_54XX_PHYS),
256 .length = L4_54XX_SIZE,
257 .type = MT_DEVICE,
258 },
259 {
260 .virtual = L4_WK_54XX_VIRT,
261 .pfn = __phys_to_pfn(L4_WK_54XX_PHYS),
262 .length = L4_WK_54XX_SIZE,
263 .type = MT_DEVICE,
264 },
265 {
266 .virtual = L4_PER_54XX_VIRT,
267 .pfn = __phys_to_pfn(L4_PER_54XX_PHYS),
268 .length = L4_PER_54XX_SIZE,
269 .type = MT_DEVICE,
270 },
271#ifdef CONFIG_OMAP4_ERRATA_I688
272 {
273 .virtual = OMAP4_SRAM_VA,
274 .pfn = __phys_to_pfn(OMAP4_SRAM_PA),
275 .length = PAGE_SIZE,
276 .type = MT_MEMORY_RW_SO,
277 },
278#endif
279};
280#endif
281
282#ifdef CONFIG_SOC_OMAP2420
283void __init omap242x_map_io(void)
284{
285 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
286 iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
287}
288#endif
289
290#ifdef CONFIG_SOC_OMAP2430
291void __init omap243x_map_io(void)
292{
293 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
294 iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
295}
296#endif
297
298#ifdef CONFIG_ARCH_OMAP3
299void __init omap3_map_io(void)
300{
301 iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
302}
303#endif
304
305#ifdef CONFIG_SOC_TI81XX
306void __init ti81xx_map_io(void)
307{
308 iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
309}
310#endif
311
312#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
313void __init am33xx_map_io(void)
314{
315 iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
316}
317#endif
318
319#ifdef CONFIG_ARCH_OMAP4
320void __init omap4_map_io(void)
321{
322 iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
323 omap_barriers_init();
324}
325#endif
326
327#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
328void __init omap5_map_io(void)
329{
330 iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
331 omap_barriers_init();
332}
333#endif
334/*
335 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
336 *
337 * Sets the CORE DPLL3 M2 divider to the same value that it's at
338 * currently. This has the effect of setting the SDRC SDRAM AC timing
339 * registers to the values currently defined by the kernel. Currently
340 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
341 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
342 * or passes along the return value of clk_set_rate().
343 */
344static int __init _omap2_init_reprogram_sdrc(void)
345{
346 struct clk *dpll3_m2_ck;
347 int v = -EINVAL;
348 long rate;
349
350 if (!cpu_is_omap34xx())
351 return 0;
352
353 dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
354 if (IS_ERR(dpll3_m2_ck))
355 return -EINVAL;
356
357 rate = clk_get_rate(dpll3_m2_ck);
358 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
359 v = clk_set_rate(dpll3_m2_ck, rate);
360 if (v)
361 pr_err("dpll3_m2_clk rate change failed: %d\n", v);
362
363 clk_put(dpll3_m2_ck);
364
365 return v;
366}
367
368static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
369{
370 return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
371}
372
373static void __init omap_hwmod_init_postsetup(void)
374{
375 u8 postsetup_state;
376
377 /* Set the default postsetup state for all hwmods */
378#ifdef CONFIG_PM_RUNTIME
379 postsetup_state = _HWMOD_STATE_IDLE;
380#else
381 postsetup_state = _HWMOD_STATE_ENABLED;
382#endif
383 omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
384
385 omap_pm_if_early_init();
386}
387
388static void __init __maybe_unused omap_common_late_init(void)
389{
390 omap_mux_late_init();
391 omap2_common_pm_late_init();
392 omap_soc_device_init();
393}
394
395#ifdef CONFIG_SOC_OMAP2420
396void __init omap2420_init_early(void)
397{
398 omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
399 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
400 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
401 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
402 NULL);
403 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
404 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), NULL);
405 omap2xxx_check_revision();
406 omap2xxx_prm_init();
407 omap2xxx_cm_init();
408 omap2xxx_voltagedomains_init();
409 omap242x_powerdomains_init();
410 omap242x_clockdomains_init();
411 omap2420_hwmod_init();
412 omap_hwmod_init_postsetup();
413 omap_clk_soc_init = omap2420_clk_init;
414}
415
416void __init omap2420_init_late(void)
417{
418 omap_common_late_init();
419 omap2_pm_init();
420 omap2_clk_enable_autoidle_all();
421}
422#endif
423
424#ifdef CONFIG_SOC_OMAP2430
425void __init omap2430_init_early(void)
426{
427 omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
428 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
429 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
430 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
431 NULL);
432 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
433 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), NULL);
434 omap2xxx_check_revision();
435 omap2xxx_prm_init();
436 omap2xxx_cm_init();
437 omap2xxx_voltagedomains_init();
438 omap243x_powerdomains_init();
439 omap243x_clockdomains_init();
440 omap2430_hwmod_init();
441 omap_hwmod_init_postsetup();
442 omap_clk_soc_init = omap2430_clk_init;
443}
444
445void __init omap2430_init_late(void)
446{
447 omap_common_late_init();
448 omap2_pm_init();
449 omap2_clk_enable_autoidle_all();
450}
451#endif
452
453/*
454 * Currently only board-omap3beagle.c should call this because of the
455 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
456 */
457#ifdef CONFIG_ARCH_OMAP3
458void __init omap3_init_early(void)
459{
460 omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
461 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
462 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
463 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
464 NULL);
465 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
466 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
467 omap3xxx_check_revision();
468 omap3xxx_check_features();
469 omap3xxx_prm_init();
470 omap3xxx_cm_init();
471 omap3xxx_voltagedomains_init();
472 omap3xxx_powerdomains_init();
473 omap3xxx_clockdomains_init();
474 omap3xxx_hwmod_init();
475 omap_hwmod_init_postsetup();
476 omap_clk_soc_init = omap3xxx_clk_init;
477}
478
479void __init omap3430_init_early(void)
480{
481 omap3_init_early();
482 if (of_have_populated_dt())
483 omap_clk_soc_init = omap3430_dt_clk_init;
484}
485
486void __init omap35xx_init_early(void)
487{
488 omap3_init_early();
489 if (of_have_populated_dt())
490 omap_clk_soc_init = omap3430_dt_clk_init;
491}
492
493void __init omap3630_init_early(void)
494{
495 omap3_init_early();
496 if (of_have_populated_dt())
497 omap_clk_soc_init = omap3630_dt_clk_init;
498}
499
500void __init am35xx_init_early(void)
501{
502 omap3_init_early();
503 if (of_have_populated_dt())
504 omap_clk_soc_init = am35xx_dt_clk_init;
505}
506
507void __init ti81xx_init_early(void)
508{
509 omap2_set_globals_tap(OMAP343X_CLASS,
510 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
511 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
512 NULL);
513 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
514 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
515 omap3xxx_check_revision();
516 ti81xx_check_features();
517 omap3xxx_voltagedomains_init();
518 omap3xxx_powerdomains_init();
519 omap3xxx_clockdomains_init();
520 omap3xxx_hwmod_init();
521 omap_hwmod_init_postsetup();
522 if (of_have_populated_dt())
523 omap_clk_soc_init = ti81xx_dt_clk_init;
524 else
525 omap_clk_soc_init = omap3xxx_clk_init;
526}
527
528void __init omap3_init_late(void)
529{
530 omap_common_late_init();
531 omap3_pm_init();
532 omap2_clk_enable_autoidle_all();
533}
534
535void __init omap3430_init_late(void)
536{
537 omap_common_late_init();
538 omap3_pm_init();
539 omap2_clk_enable_autoidle_all();
540}
541
542void __init omap35xx_init_late(void)
543{
544 omap_common_late_init();
545 omap3_pm_init();
546 omap2_clk_enable_autoidle_all();
547}
548
549void __init omap3630_init_late(void)
550{
551 omap_common_late_init();
552 omap3_pm_init();
553 omap2_clk_enable_autoidle_all();
554}
555
556void __init am35xx_init_late(void)
557{
558 omap_common_late_init();
559 omap3_pm_init();
560 omap2_clk_enable_autoidle_all();
561}
562
563void __init ti81xx_init_late(void)
564{
565 omap_common_late_init();
566 omap3_pm_init();
567 omap2_clk_enable_autoidle_all();
568}
569#endif
570
571#ifdef CONFIG_SOC_AM33XX
572void __init am33xx_init_early(void)
573{
574 omap2_set_globals_tap(AM335X_CLASS,
575 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
576 omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
577 NULL);
578 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
579 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL);
580 omap3xxx_check_revision();
581 am33xx_check_features();
582 am33xx_powerdomains_init();
583 am33xx_clockdomains_init();
584 am33xx_hwmod_init();
585 omap_hwmod_init_postsetup();
586 omap_clk_soc_init = am33xx_dt_clk_init;
587}
588
589void __init am33xx_init_late(void)
590{
591 omap_common_late_init();
592}
593#endif
594
595#ifdef CONFIG_SOC_AM43XX
596void __init am43xx_init_early(void)
597{
598 omap2_set_globals_tap(AM335X_CLASS,
599 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
600 omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
601 NULL);
602 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
603 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
604 omap_prm_base_init();
605 omap_cm_base_init();
606 omap3xxx_check_revision();
607 am33xx_check_features();
608 am43xx_powerdomains_init();
609 am43xx_clockdomains_init();
610 am43xx_hwmod_init();
611 omap_hwmod_init_postsetup();
612 omap_clk_soc_init = am43xx_dt_clk_init;
613}
614
615void __init am43xx_init_late(void)
616{
617 omap_common_late_init();
618}
619#endif
620
621#ifdef CONFIG_ARCH_OMAP4
622void __init omap4430_init_early(void)
623{
624 omap2_set_globals_tap(OMAP443X_CLASS,
625 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
626 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
627 OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
628 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
629 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
630 OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
631 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
632 omap_prm_base_init();
633 omap_cm_base_init();
634 omap4xxx_check_revision();
635 omap4xxx_check_features();
636 omap4_pm_init_early();
637 omap44xx_prm_init();
638 omap44xx_voltagedomains_init();
639 omap44xx_powerdomains_init();
640 omap44xx_clockdomains_init();
641 omap44xx_hwmod_init();
642 omap_hwmod_init_postsetup();
643 omap_clk_soc_init = omap4xxx_dt_clk_init;
644}
645
646void __init omap4430_init_late(void)
647{
648 omap_common_late_init();
649 omap4_pm_init();
650 omap2_clk_enable_autoidle_all();
651}
652#endif
653
654#ifdef CONFIG_SOC_OMAP5
655void __init omap5_init_early(void)
656{
657 omap2_set_globals_tap(OMAP54XX_CLASS,
658 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
659 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
660 OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
661 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
662 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
663 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
664 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
665 omap_prm_base_init();
666 omap_cm_base_init();
667 omap44xx_prm_init();
668 omap5xxx_check_revision();
669 omap54xx_voltagedomains_init();
670 omap54xx_powerdomains_init();
671 omap54xx_clockdomains_init();
672 omap54xx_hwmod_init();
673 omap_hwmod_init_postsetup();
674 omap_clk_soc_init = omap5xxx_dt_clk_init;
675}
676
677void __init omap5_init_late(void)
678{
679 omap_common_late_init();
680}
681#endif
682
683#ifdef CONFIG_SOC_DRA7XX
684void __init dra7xx_init_early(void)
685{
686 omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
687 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
688 OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
689 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
690 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_AON_BASE),
691 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
692 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
693 omap_prm_base_init();
694 omap_cm_base_init();
695 omap44xx_prm_init();
696 dra7xx_powerdomains_init();
697 dra7xx_clockdomains_init();
698 dra7xx_hwmod_init();
699 omap_hwmod_init_postsetup();
700 omap_clk_soc_init = dra7xx_dt_clk_init;
701}
702
703void __init dra7xx_init_late(void)
704{
705 omap_common_late_init();
706}
707#endif
708
709
710void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
711 struct omap_sdrc_params *sdrc_cs1)
712{
713 omap_sram_init();
714
715 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
716 omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
717 _omap2_init_reprogram_sdrc();
718 }
719}
720
721int __init omap_clk_init(void)
722{
723 int ret = 0;
724
725 if (!omap_clk_soc_init)
726 return 0;
727
728 ret = of_prcm_init();
729 if (!ret)
730 ret = omap_clk_soc_init();
731
732 return ret;
733}
1/*
2 * linux/arch/arm/mach-omap2/io.c
3 *
4 * OMAP2 I/O mapping code
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Copyright (C) 2007-2009 Texas Instruments
8 *
9 * Author:
10 * Juha Yrjola <juha.yrjola@nokia.com>
11 * Syed Khasim <x0khasim@ti.com>
12 *
13 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License version 2 as
17 * published by the Free Software Foundation.
18 */
19
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/init.h>
23#include <linux/io.h>
24#include <linux/clk.h>
25#include <linux/omapfb.h>
26
27#include <asm/tlb.h>
28
29#include <asm/mach/map.h>
30
31#include <plat/sram.h>
32#include <plat/sdrc.h>
33#include <plat/serial.h>
34
35#include "clock2xxx.h"
36#include "clock3xxx.h"
37#include "clock44xx.h"
38#include "io.h"
39
40#include <plat/omap-pm.h>
41#include "powerdomain.h"
42
43#include "clockdomain.h"
44#include <plat/omap_hwmod.h>
45#include <plat/multi.h>
46
47/*
48 * The machine specific code may provide the extra mapping besides the
49 * default mapping provided here.
50 */
51
52#ifdef CONFIG_ARCH_OMAP2
53static struct map_desc omap24xx_io_desc[] __initdata = {
54 {
55 .virtual = L3_24XX_VIRT,
56 .pfn = __phys_to_pfn(L3_24XX_PHYS),
57 .length = L3_24XX_SIZE,
58 .type = MT_DEVICE
59 },
60 {
61 .virtual = L4_24XX_VIRT,
62 .pfn = __phys_to_pfn(L4_24XX_PHYS),
63 .length = L4_24XX_SIZE,
64 .type = MT_DEVICE
65 },
66};
67
68#ifdef CONFIG_SOC_OMAP2420
69static struct map_desc omap242x_io_desc[] __initdata = {
70 {
71 .virtual = DSP_MEM_2420_VIRT,
72 .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS),
73 .length = DSP_MEM_2420_SIZE,
74 .type = MT_DEVICE
75 },
76 {
77 .virtual = DSP_IPI_2420_VIRT,
78 .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS),
79 .length = DSP_IPI_2420_SIZE,
80 .type = MT_DEVICE
81 },
82 {
83 .virtual = DSP_MMU_2420_VIRT,
84 .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS),
85 .length = DSP_MMU_2420_SIZE,
86 .type = MT_DEVICE
87 },
88};
89
90#endif
91
92#ifdef CONFIG_SOC_OMAP2430
93static struct map_desc omap243x_io_desc[] __initdata = {
94 {
95 .virtual = L4_WK_243X_VIRT,
96 .pfn = __phys_to_pfn(L4_WK_243X_PHYS),
97 .length = L4_WK_243X_SIZE,
98 .type = MT_DEVICE
99 },
100 {
101 .virtual = OMAP243X_GPMC_VIRT,
102 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS),
103 .length = OMAP243X_GPMC_SIZE,
104 .type = MT_DEVICE
105 },
106 {
107 .virtual = OMAP243X_SDRC_VIRT,
108 .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS),
109 .length = OMAP243X_SDRC_SIZE,
110 .type = MT_DEVICE
111 },
112 {
113 .virtual = OMAP243X_SMS_VIRT,
114 .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS),
115 .length = OMAP243X_SMS_SIZE,
116 .type = MT_DEVICE
117 },
118};
119#endif
120#endif
121
122#ifdef CONFIG_ARCH_OMAP3
123static struct map_desc omap34xx_io_desc[] __initdata = {
124 {
125 .virtual = L3_34XX_VIRT,
126 .pfn = __phys_to_pfn(L3_34XX_PHYS),
127 .length = L3_34XX_SIZE,
128 .type = MT_DEVICE
129 },
130 {
131 .virtual = L4_34XX_VIRT,
132 .pfn = __phys_to_pfn(L4_34XX_PHYS),
133 .length = L4_34XX_SIZE,
134 .type = MT_DEVICE
135 },
136 {
137 .virtual = OMAP34XX_GPMC_VIRT,
138 .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
139 .length = OMAP34XX_GPMC_SIZE,
140 .type = MT_DEVICE
141 },
142 {
143 .virtual = OMAP343X_SMS_VIRT,
144 .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS),
145 .length = OMAP343X_SMS_SIZE,
146 .type = MT_DEVICE
147 },
148 {
149 .virtual = OMAP343X_SDRC_VIRT,
150 .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS),
151 .length = OMAP343X_SDRC_SIZE,
152 .type = MT_DEVICE
153 },
154 {
155 .virtual = L4_PER_34XX_VIRT,
156 .pfn = __phys_to_pfn(L4_PER_34XX_PHYS),
157 .length = L4_PER_34XX_SIZE,
158 .type = MT_DEVICE
159 },
160 {
161 .virtual = L4_EMU_34XX_VIRT,
162 .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS),
163 .length = L4_EMU_34XX_SIZE,
164 .type = MT_DEVICE
165 },
166#if defined(CONFIG_DEBUG_LL) && \
167 (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
168 {
169 .virtual = ZOOM_UART_VIRT,
170 .pfn = __phys_to_pfn(ZOOM_UART_BASE),
171 .length = SZ_1M,
172 .type = MT_DEVICE
173 },
174#endif
175};
176#endif
177
178#ifdef CONFIG_SOC_OMAPTI816X
179static struct map_desc omapti816x_io_desc[] __initdata = {
180 {
181 .virtual = L4_34XX_VIRT,
182 .pfn = __phys_to_pfn(L4_34XX_PHYS),
183 .length = L4_34XX_SIZE,
184 .type = MT_DEVICE
185 },
186};
187#endif
188
189#ifdef CONFIG_ARCH_OMAP4
190static struct map_desc omap44xx_io_desc[] __initdata = {
191 {
192 .virtual = L3_44XX_VIRT,
193 .pfn = __phys_to_pfn(L3_44XX_PHYS),
194 .length = L3_44XX_SIZE,
195 .type = MT_DEVICE,
196 },
197 {
198 .virtual = L4_44XX_VIRT,
199 .pfn = __phys_to_pfn(L4_44XX_PHYS),
200 .length = L4_44XX_SIZE,
201 .type = MT_DEVICE,
202 },
203 {
204 .virtual = OMAP44XX_GPMC_VIRT,
205 .pfn = __phys_to_pfn(OMAP44XX_GPMC_PHYS),
206 .length = OMAP44XX_GPMC_SIZE,
207 .type = MT_DEVICE,
208 },
209 {
210 .virtual = OMAP44XX_EMIF1_VIRT,
211 .pfn = __phys_to_pfn(OMAP44XX_EMIF1_PHYS),
212 .length = OMAP44XX_EMIF1_SIZE,
213 .type = MT_DEVICE,
214 },
215 {
216 .virtual = OMAP44XX_EMIF2_VIRT,
217 .pfn = __phys_to_pfn(OMAP44XX_EMIF2_PHYS),
218 .length = OMAP44XX_EMIF2_SIZE,
219 .type = MT_DEVICE,
220 },
221 {
222 .virtual = OMAP44XX_DMM_VIRT,
223 .pfn = __phys_to_pfn(OMAP44XX_DMM_PHYS),
224 .length = OMAP44XX_DMM_SIZE,
225 .type = MT_DEVICE,
226 },
227 {
228 .virtual = L4_PER_44XX_VIRT,
229 .pfn = __phys_to_pfn(L4_PER_44XX_PHYS),
230 .length = L4_PER_44XX_SIZE,
231 .type = MT_DEVICE,
232 },
233 {
234 .virtual = L4_EMU_44XX_VIRT,
235 .pfn = __phys_to_pfn(L4_EMU_44XX_PHYS),
236 .length = L4_EMU_44XX_SIZE,
237 .type = MT_DEVICE,
238 },
239};
240#endif
241
242static void __init _omap2_map_common_io(void)
243{
244 /* Normally devicemaps_init() would flush caches and tlb after
245 * mdesc->map_io(), but we must also do it here because of the CPU
246 * revision check below.
247 */
248 local_flush_tlb_all();
249 flush_cache_all();
250
251 omap2_check_revision();
252 omap_sram_init();
253}
254
255#ifdef CONFIG_SOC_OMAP2420
256void __init omap242x_map_common_io(void)
257{
258 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
259 iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
260 _omap2_map_common_io();
261}
262#endif
263
264#ifdef CONFIG_SOC_OMAP2430
265void __init omap243x_map_common_io(void)
266{
267 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
268 iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
269 _omap2_map_common_io();
270}
271#endif
272
273#ifdef CONFIG_ARCH_OMAP3
274void __init omap34xx_map_common_io(void)
275{
276 iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
277 _omap2_map_common_io();
278}
279#endif
280
281#ifdef CONFIG_SOC_OMAPTI816X
282void __init omapti816x_map_common_io(void)
283{
284 iotable_init(omapti816x_io_desc, ARRAY_SIZE(omapti816x_io_desc));
285 _omap2_map_common_io();
286}
287#endif
288
289#ifdef CONFIG_ARCH_OMAP4
290void __init omap44xx_map_common_io(void)
291{
292 iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
293 _omap2_map_common_io();
294}
295#endif
296
297/*
298 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
299 *
300 * Sets the CORE DPLL3 M2 divider to the same value that it's at
301 * currently. This has the effect of setting the SDRC SDRAM AC timing
302 * registers to the values currently defined by the kernel. Currently
303 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
304 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
305 * or passes along the return value of clk_set_rate().
306 */
307static int __init _omap2_init_reprogram_sdrc(void)
308{
309 struct clk *dpll3_m2_ck;
310 int v = -EINVAL;
311 long rate;
312
313 if (!cpu_is_omap34xx())
314 return 0;
315
316 dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
317 if (IS_ERR(dpll3_m2_ck))
318 return -EINVAL;
319
320 rate = clk_get_rate(dpll3_m2_ck);
321 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
322 v = clk_set_rate(dpll3_m2_ck, rate);
323 if (v)
324 pr_err("dpll3_m2_clk rate change failed: %d\n", v);
325
326 clk_put(dpll3_m2_ck);
327
328 return v;
329}
330
331static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
332{
333 return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
334}
335
336/* See irq.c, omap4-common.c and entry-macro.S */
337void __iomem *omap_irq_base;
338
339void __init omap2_init_common_infrastructure(void)
340{
341 u8 postsetup_state;
342
343 if (cpu_is_omap242x()) {
344 omap2xxx_powerdomains_init();
345 omap2xxx_clockdomains_init();
346 omap2420_hwmod_init();
347 } else if (cpu_is_omap243x()) {
348 omap2xxx_powerdomains_init();
349 omap2xxx_clockdomains_init();
350 omap2430_hwmod_init();
351 } else if (cpu_is_omap34xx()) {
352 omap3xxx_powerdomains_init();
353 omap3xxx_clockdomains_init();
354 omap3xxx_hwmod_init();
355 } else if (cpu_is_omap44xx()) {
356 omap44xx_powerdomains_init();
357 omap44xx_clockdomains_init();
358 omap44xx_hwmod_init();
359 } else {
360 pr_err("Could not init hwmod data - unknown SoC\n");
361 }
362
363 /* Set the default postsetup state for all hwmods */
364#ifdef CONFIG_PM_RUNTIME
365 postsetup_state = _HWMOD_STATE_IDLE;
366#else
367 postsetup_state = _HWMOD_STATE_ENABLED;
368#endif
369 omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
370
371 /*
372 * Set the default postsetup state for unusual modules (like
373 * MPU WDT).
374 *
375 * The postsetup_state is not actually used until
376 * omap_hwmod_late_init(), so boards that desire full watchdog
377 * coverage of kernel initialization can reprogram the
378 * postsetup_state between the calls to
379 * omap2_init_common_infra() and omap2_init_common_devices().
380 *
381 * XXX ideally we could detect whether the MPU WDT was currently
382 * enabled here and make this conditional
383 */
384 postsetup_state = _HWMOD_STATE_DISABLED;
385 omap_hwmod_for_each_by_class("wd_timer",
386 _set_hwmod_postsetup_state,
387 &postsetup_state);
388
389 omap_pm_if_early_init();
390
391 if (cpu_is_omap2420())
392 omap2420_clk_init();
393 else if (cpu_is_omap2430())
394 omap2430_clk_init();
395 else if (cpu_is_omap34xx())
396 omap3xxx_clk_init();
397 else if (cpu_is_omap44xx())
398 omap4xxx_clk_init();
399 else
400 pr_err("Could not init clock framework - unknown SoC\n");
401}
402
403void __init omap2_init_common_devices(struct omap_sdrc_params *sdrc_cs0,
404 struct omap_sdrc_params *sdrc_cs1)
405{
406 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
407 omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
408 _omap2_init_reprogram_sdrc();
409 }
410
411}
412
413/*
414 * NOTE: Please use ioremap + __raw_read/write where possible instead of these
415 */
416
417u8 omap_readb(u32 pa)
418{
419 return __raw_readb(OMAP2_L4_IO_ADDRESS(pa));
420}
421EXPORT_SYMBOL(omap_readb);
422
423u16 omap_readw(u32 pa)
424{
425 return __raw_readw(OMAP2_L4_IO_ADDRESS(pa));
426}
427EXPORT_SYMBOL(omap_readw);
428
429u32 omap_readl(u32 pa)
430{
431 return __raw_readl(OMAP2_L4_IO_ADDRESS(pa));
432}
433EXPORT_SYMBOL(omap_readl);
434
435void omap_writeb(u8 v, u32 pa)
436{
437 __raw_writeb(v, OMAP2_L4_IO_ADDRESS(pa));
438}
439EXPORT_SYMBOL(omap_writeb);
440
441void omap_writew(u16 v, u32 pa)
442{
443 __raw_writew(v, OMAP2_L4_IO_ADDRESS(pa));
444}
445EXPORT_SYMBOL(omap_writew);
446
447void omap_writel(u32 v, u32 pa)
448{
449 __raw_writel(v, OMAP2_L4_IO_ADDRESS(pa));
450}
451EXPORT_SYMBOL(omap_writel);