2 * linux/arch/arm/mach-omap2/io.c
4 * OMAP2 I/O mapping code
6 * Copyright (C) 2005 Nokia Corporation
7 * Copyright (C) 2007-2009 Texas Instruments
10 * Juha Yrjola <juha.yrjola@nokia.com>
11 * Syed Khasim <x0khasim@ti.com>
13 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
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.
19 #include <linux/module.h>
20 #include <linux/kernel.h>
21 #include <linux/init.h>
23 #include <linux/clk.h>
26 #include <asm/mach/map.h>
28 #include <linux/omap-dma.h>
30 #include "omap_hwmod.h"
34 #include "powerdomain.h"
35 #include "clockdomain.h"
38 #include "clock2xxx.h"
39 #include "clock3xxx.h"
40 #include "clock44xx.h"
52 #include "prcm_mpu44xx.h"
53 #include "prminst44xx.h"
61 * omap_clk_soc_init: points to a function that does the SoC-specific
62 * clock initializations
64 static int (*omap_clk_soc_init
)(void);
67 * The machine specific code may provide the extra mapping besides the
68 * default mapping provided here.
71 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
72 static struct map_desc omap24xx_io_desc
[] __initdata
= {
74 .virtual = L3_24XX_VIRT
,
75 .pfn
= __phys_to_pfn(L3_24XX_PHYS
),
76 .length
= L3_24XX_SIZE
,
80 .virtual = L4_24XX_VIRT
,
81 .pfn
= __phys_to_pfn(L4_24XX_PHYS
),
82 .length
= L4_24XX_SIZE
,
87 #ifdef CONFIG_SOC_OMAP2420
88 static struct map_desc omap242x_io_desc
[] __initdata
= {
90 .virtual = DSP_MEM_2420_VIRT
,
91 .pfn
= __phys_to_pfn(DSP_MEM_2420_PHYS
),
92 .length
= DSP_MEM_2420_SIZE
,
96 .virtual = DSP_IPI_2420_VIRT
,
97 .pfn
= __phys_to_pfn(DSP_IPI_2420_PHYS
),
98 .length
= DSP_IPI_2420_SIZE
,
102 .virtual = DSP_MMU_2420_VIRT
,
103 .pfn
= __phys_to_pfn(DSP_MMU_2420_PHYS
),
104 .length
= DSP_MMU_2420_SIZE
,
111 #ifdef CONFIG_SOC_OMAP2430
112 static struct map_desc omap243x_io_desc
[] __initdata
= {
114 .virtual = L4_WK_243X_VIRT
,
115 .pfn
= __phys_to_pfn(L4_WK_243X_PHYS
),
116 .length
= L4_WK_243X_SIZE
,
120 .virtual = OMAP243X_GPMC_VIRT
,
121 .pfn
= __phys_to_pfn(OMAP243X_GPMC_PHYS
),
122 .length
= OMAP243X_GPMC_SIZE
,
126 .virtual = OMAP243X_SDRC_VIRT
,
127 .pfn
= __phys_to_pfn(OMAP243X_SDRC_PHYS
),
128 .length
= OMAP243X_SDRC_SIZE
,
132 .virtual = OMAP243X_SMS_VIRT
,
133 .pfn
= __phys_to_pfn(OMAP243X_SMS_PHYS
),
134 .length
= OMAP243X_SMS_SIZE
,
141 #ifdef CONFIG_ARCH_OMAP3
142 static struct map_desc omap34xx_io_desc
[] __initdata
= {
144 .virtual = L3_34XX_VIRT
,
145 .pfn
= __phys_to_pfn(L3_34XX_PHYS
),
146 .length
= L3_34XX_SIZE
,
150 .virtual = L4_34XX_VIRT
,
151 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
152 .length
= L4_34XX_SIZE
,
156 .virtual = OMAP34XX_GPMC_VIRT
,
157 .pfn
= __phys_to_pfn(OMAP34XX_GPMC_PHYS
),
158 .length
= OMAP34XX_GPMC_SIZE
,
162 .virtual = OMAP343X_SMS_VIRT
,
163 .pfn
= __phys_to_pfn(OMAP343X_SMS_PHYS
),
164 .length
= OMAP343X_SMS_SIZE
,
168 .virtual = OMAP343X_SDRC_VIRT
,
169 .pfn
= __phys_to_pfn(OMAP343X_SDRC_PHYS
),
170 .length
= OMAP343X_SDRC_SIZE
,
174 .virtual = L4_PER_34XX_VIRT
,
175 .pfn
= __phys_to_pfn(L4_PER_34XX_PHYS
),
176 .length
= L4_PER_34XX_SIZE
,
180 .virtual = L4_EMU_34XX_VIRT
,
181 .pfn
= __phys_to_pfn(L4_EMU_34XX_PHYS
),
182 .length
= L4_EMU_34XX_SIZE
,
188 #ifdef CONFIG_SOC_TI81XX
189 static struct map_desc omapti81xx_io_desc
[] __initdata
= {
191 .virtual = L4_34XX_VIRT
,
192 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
193 .length
= L4_34XX_SIZE
,
199 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
200 static struct map_desc omapam33xx_io_desc
[] __initdata
= {
202 .virtual = L4_34XX_VIRT
,
203 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
204 .length
= L4_34XX_SIZE
,
208 .virtual = L4_WK_AM33XX_VIRT
,
209 .pfn
= __phys_to_pfn(L4_WK_AM33XX_PHYS
),
210 .length
= L4_WK_AM33XX_SIZE
,
216 #ifdef CONFIG_ARCH_OMAP4
217 static struct map_desc omap44xx_io_desc
[] __initdata
= {
219 .virtual = L3_44XX_VIRT
,
220 .pfn
= __phys_to_pfn(L3_44XX_PHYS
),
221 .length
= L3_44XX_SIZE
,
225 .virtual = L4_44XX_VIRT
,
226 .pfn
= __phys_to_pfn(L4_44XX_PHYS
),
227 .length
= L4_44XX_SIZE
,
231 .virtual = L4_PER_44XX_VIRT
,
232 .pfn
= __phys_to_pfn(L4_PER_44XX_PHYS
),
233 .length
= L4_PER_44XX_SIZE
,
239 #if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
240 static struct map_desc omap54xx_io_desc
[] __initdata
= {
242 .virtual = L3_54XX_VIRT
,
243 .pfn
= __phys_to_pfn(L3_54XX_PHYS
),
244 .length
= L3_54XX_SIZE
,
248 .virtual = L4_54XX_VIRT
,
249 .pfn
= __phys_to_pfn(L4_54XX_PHYS
),
250 .length
= L4_54XX_SIZE
,
254 .virtual = L4_WK_54XX_VIRT
,
255 .pfn
= __phys_to_pfn(L4_WK_54XX_PHYS
),
256 .length
= L4_WK_54XX_SIZE
,
260 .virtual = L4_PER_54XX_VIRT
,
261 .pfn
= __phys_to_pfn(L4_PER_54XX_PHYS
),
262 .length
= L4_PER_54XX_SIZE
,
268 #ifdef CONFIG_SOC_OMAP2420
269 void __init
omap242x_map_io(void)
271 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
272 iotable_init(omap242x_io_desc
, ARRAY_SIZE(omap242x_io_desc
));
276 #ifdef CONFIG_SOC_OMAP2430
277 void __init
omap243x_map_io(void)
279 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
280 iotable_init(omap243x_io_desc
, ARRAY_SIZE(omap243x_io_desc
));
284 #ifdef CONFIG_ARCH_OMAP3
285 void __init
omap3_map_io(void)
287 iotable_init(omap34xx_io_desc
, ARRAY_SIZE(omap34xx_io_desc
));
291 #ifdef CONFIG_SOC_TI81XX
292 void __init
ti81xx_map_io(void)
294 iotable_init(omapti81xx_io_desc
, ARRAY_SIZE(omapti81xx_io_desc
));
298 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
299 void __init
am33xx_map_io(void)
301 iotable_init(omapam33xx_io_desc
, ARRAY_SIZE(omapam33xx_io_desc
));
305 #ifdef CONFIG_ARCH_OMAP4
306 void __init
omap4_map_io(void)
308 iotable_init(omap44xx_io_desc
, ARRAY_SIZE(omap44xx_io_desc
));
312 #if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
313 void __init
omap5_map_io(void)
315 iotable_init(omap54xx_io_desc
, ARRAY_SIZE(omap54xx_io_desc
));
319 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
321 * Sets the CORE DPLL3 M2 divider to the same value that it's at
322 * currently. This has the effect of setting the SDRC SDRAM AC timing
323 * registers to the values currently defined by the kernel. Currently
324 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
325 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
326 * or passes along the return value of clk_set_rate().
328 static int __init
_omap2_init_reprogram_sdrc(void)
330 struct clk
*dpll3_m2_ck
;
334 if (!cpu_is_omap34xx())
337 dpll3_m2_ck
= clk_get(NULL
, "dpll3_m2_ck");
338 if (IS_ERR(dpll3_m2_ck
))
341 rate
= clk_get_rate(dpll3_m2_ck
);
342 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate
);
343 v
= clk_set_rate(dpll3_m2_ck
, rate
);
345 pr_err("dpll3_m2_clk rate change failed: %d\n", v
);
347 clk_put(dpll3_m2_ck
);
352 static int _set_hwmod_postsetup_state(struct omap_hwmod
*oh
, void *data
)
354 return omap_hwmod_set_postsetup_state(oh
, *(u8
*)data
);
357 static void __init
omap_hwmod_init_postsetup(void)
361 /* Set the default postsetup state for all hwmods */
363 postsetup_state
= _HWMOD_STATE_IDLE
;
365 postsetup_state
= _HWMOD_STATE_ENABLED
;
367 omap_hwmod_for_each(_set_hwmod_postsetup_state
, &postsetup_state
);
369 omap_pm_if_early_init();
372 static void __init __maybe_unused
omap_common_late_init(void)
374 omap_mux_late_init();
375 omap2_common_pm_late_init();
376 omap_soc_device_init();
379 #ifdef CONFIG_SOC_OMAP2420
380 void __init
omap2420_init_early(void)
382 omap2_set_globals_tap(OMAP242X_CLASS
, OMAP2_L4_IO_ADDRESS(0x48014000));
383 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE
),
384 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE
));
385 omap2_control_base_init();
386 omap2xxx_check_revision();
387 omap2_prcm_base_init();
388 omap2xxx_voltagedomains_init();
389 omap242x_powerdomains_init();
390 omap242x_clockdomains_init();
391 omap2420_hwmod_init();
392 omap_hwmod_init_postsetup();
393 omap_clk_soc_init
= omap2420_dt_clk_init
;
394 rate_table
= omap2420_rate_table
;
397 void __init
omap2420_init_late(void)
399 omap_common_late_init();
401 omap2_clk_enable_autoidle_all();
405 #ifdef CONFIG_SOC_OMAP2430
406 void __init
omap2430_init_early(void)
408 omap2_set_globals_tap(OMAP243X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4900a000));
409 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE
),
410 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE
));
411 omap2_control_base_init();
412 omap2xxx_check_revision();
413 omap2_prcm_base_init();
414 omap2xxx_voltagedomains_init();
415 omap243x_powerdomains_init();
416 omap243x_clockdomains_init();
417 omap2430_hwmod_init();
418 omap_hwmod_init_postsetup();
419 omap_clk_soc_init
= omap2430_dt_clk_init
;
420 rate_table
= omap2430_rate_table
;
423 void __init
omap2430_init_late(void)
425 omap_common_late_init();
427 omap2_clk_enable_autoidle_all();
432 * Currently only board-omap3beagle.c should call this because of the
433 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
435 #ifdef CONFIG_ARCH_OMAP3
436 void __init
omap3_init_early(void)
438 omap2_set_globals_tap(OMAP343X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4830A000));
439 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE
),
440 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE
));
441 /* XXX: remove these once OMAP3 is DT only */
442 if (!of_have_populated_dt()) {
443 omap2_set_globals_control(
444 OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE
));
445 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE
));
446 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE
),
449 omap2_control_base_init();
450 omap3xxx_check_revision();
451 omap3xxx_check_features();
452 omap2_prcm_base_init();
453 /* XXX: remove these once OMAP3 is DT only */
454 if (!of_have_populated_dt()) {
455 omap3xxx_prm_init(NULL
);
456 omap3xxx_cm_init(NULL
);
458 omap3xxx_voltagedomains_init();
459 omap3xxx_powerdomains_init();
460 omap3xxx_clockdomains_init();
461 omap3xxx_hwmod_init();
462 omap_hwmod_init_postsetup();
463 if (!of_have_populated_dt()) {
464 omap3_control_legacy_iomap_init();
466 omap_clk_soc_init
= am35xx_clk_legacy_init
;
467 else if (cpu_is_omap3630())
468 omap_clk_soc_init
= omap36xx_clk_legacy_init
;
469 else if (omap_rev() == OMAP3430_REV_ES1_0
)
470 omap_clk_soc_init
= omap3430es1_clk_legacy_init
;
472 omap_clk_soc_init
= omap3430_clk_legacy_init
;
476 void __init
omap3430_init_early(void)
479 if (of_have_populated_dt())
480 omap_clk_soc_init
= omap3430_dt_clk_init
;
483 void __init
omap35xx_init_early(void)
486 if (of_have_populated_dt())
487 omap_clk_soc_init
= omap3430_dt_clk_init
;
490 void __init
omap3630_init_early(void)
493 if (of_have_populated_dt())
494 omap_clk_soc_init
= omap3630_dt_clk_init
;
497 void __init
am35xx_init_early(void)
500 if (of_have_populated_dt())
501 omap_clk_soc_init
= am35xx_dt_clk_init
;
504 void __init
omap3_init_late(void)
506 omap_common_late_init();
508 omap2_clk_enable_autoidle_all();
511 void __init
omap3430_init_late(void)
513 omap_common_late_init();
515 omap2_clk_enable_autoidle_all();
518 void __init
omap35xx_init_late(void)
520 omap_common_late_init();
522 omap2_clk_enable_autoidle_all();
525 void __init
omap3630_init_late(void)
527 omap_common_late_init();
529 omap2_clk_enable_autoidle_all();
532 void __init
am35xx_init_late(void)
534 omap_common_late_init();
536 omap2_clk_enable_autoidle_all();
539 void __init
ti81xx_init_late(void)
541 omap_common_late_init();
542 omap2_clk_enable_autoidle_all();
546 #ifdef CONFIG_SOC_TI81XX
547 void __init
ti814x_init_early(void)
549 omap2_set_globals_tap(TI814X_CLASS
,
550 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
551 omap2_control_base_init();
552 omap3xxx_check_revision();
553 ti81xx_check_features();
554 omap2_prcm_base_init();
555 omap3xxx_voltagedomains_init();
556 omap3xxx_powerdomains_init();
557 ti81xx_clockdomains_init();
559 omap_hwmod_init_postsetup();
560 if (of_have_populated_dt())
561 omap_clk_soc_init
= ti81xx_dt_clk_init
;
564 void __init
ti816x_init_early(void)
566 omap2_set_globals_tap(TI816X_CLASS
,
567 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
568 omap2_control_base_init();
569 omap3xxx_check_revision();
570 ti81xx_check_features();
571 omap2_prcm_base_init();
572 omap3xxx_voltagedomains_init();
573 omap3xxx_powerdomains_init();
574 ti81xx_clockdomains_init();
576 omap_hwmod_init_postsetup();
577 if (of_have_populated_dt())
578 omap_clk_soc_init
= ti81xx_dt_clk_init
;
582 #ifdef CONFIG_SOC_AM33XX
583 void __init
am33xx_init_early(void)
585 omap2_set_globals_tap(AM335X_CLASS
,
586 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
587 omap2_control_base_init();
588 omap3xxx_check_revision();
589 am33xx_check_features();
590 omap2_prcm_base_init();
591 am33xx_powerdomains_init();
592 am33xx_clockdomains_init();
594 omap_hwmod_init_postsetup();
595 omap_clk_soc_init
= am33xx_dt_clk_init
;
598 void __init
am33xx_init_late(void)
600 omap_common_late_init();
604 #ifdef CONFIG_SOC_AM43XX
605 void __init
am43xx_init_early(void)
607 omap2_set_globals_tap(AM335X_CLASS
,
608 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
609 omap2_control_base_init();
610 omap3xxx_check_revision();
611 am33xx_check_features();
612 omap2_prcm_base_init();
613 am43xx_powerdomains_init();
614 am43xx_clockdomains_init();
616 omap_hwmod_init_postsetup();
617 omap_l2_cache_init();
618 omap_clk_soc_init
= am43xx_dt_clk_init
;
621 void __init
am43xx_init_late(void)
623 omap_common_late_init();
627 #ifdef CONFIG_ARCH_OMAP4
628 void __init
omap4430_init_early(void)
630 omap2_set_globals_tap(OMAP443X_CLASS
,
631 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
));
632 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE
));
633 omap2_control_base_init();
634 omap4xxx_check_revision();
635 omap4xxx_check_features();
636 omap2_prcm_base_init();
637 omap4_pm_init_early();
638 omap44xx_voltagedomains_init();
639 omap44xx_powerdomains_init();
640 omap44xx_clockdomains_init();
641 omap44xx_hwmod_init();
642 omap_hwmod_init_postsetup();
643 omap_l2_cache_init();
644 omap_clk_soc_init
= omap4xxx_dt_clk_init
;
647 void __init
omap4430_init_late(void)
649 omap_common_late_init();
651 omap2_clk_enable_autoidle_all();
655 #ifdef CONFIG_SOC_OMAP5
656 void __init
omap5_init_early(void)
658 omap2_set_globals_tap(OMAP54XX_CLASS
,
659 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
));
660 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
661 omap2_control_base_init();
662 omap4_pm_init_early();
663 omap2_prcm_base_init();
664 omap5xxx_check_revision();
665 omap54xx_voltagedomains_init();
666 omap54xx_powerdomains_init();
667 omap54xx_clockdomains_init();
668 omap54xx_hwmod_init();
669 omap_hwmod_init_postsetup();
670 omap_clk_soc_init
= omap5xxx_dt_clk_init
;
673 void __init
omap5_init_late(void)
675 omap_common_late_init();
677 omap2_clk_enable_autoidle_all();
681 #ifdef CONFIG_SOC_DRA7XX
682 void __init
dra7xx_init_early(void)
684 omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE
));
685 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
686 omap2_control_base_init();
687 omap4_pm_init_early();
688 omap2_prcm_base_init();
689 dra7xxx_check_revision();
690 dra7xx_powerdomains_init();
691 dra7xx_clockdomains_init();
693 omap_hwmod_init_postsetup();
694 omap_clk_soc_init
= dra7xx_dt_clk_init
;
697 void __init
dra7xx_init_late(void)
699 omap_common_late_init();
701 omap2_clk_enable_autoidle_all();
706 void __init
omap_sdrc_init(struct omap_sdrc_params
*sdrc_cs0
,
707 struct omap_sdrc_params
*sdrc_cs1
)
711 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
712 omap2_sdrc_init(sdrc_cs0
, sdrc_cs1
);
713 _omap2_init_reprogram_sdrc();
717 int __init
omap_clk_init(void)
721 if (!omap_clk_soc_init
)
724 ti_clk_init_features();
726 if (of_have_populated_dt()) {
727 ret
= omap_control_init();
731 ret
= omap_prcm_init();
737 ti_dt_clk_init_retry_clks();
739 ti_dt_clockdomains_setup();
742 ret
= omap_clk_soc_init();