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"
50 #include "prcm_mpu44xx.h"
51 #include "prminst44xx.h"
52 #include "cminst44xx.h"
59 * omap_clk_soc_init: points to a function that does the SoC-specific
60 * clock initializations
62 static int (*omap_clk_soc_init
)(void);
65 * The machine specific code may provide the extra mapping besides the
66 * default mapping provided here.
69 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
70 static struct map_desc omap24xx_io_desc
[] __initdata
= {
72 .virtual = L3_24XX_VIRT
,
73 .pfn
= __phys_to_pfn(L3_24XX_PHYS
),
74 .length
= L3_24XX_SIZE
,
78 .virtual = L4_24XX_VIRT
,
79 .pfn
= __phys_to_pfn(L4_24XX_PHYS
),
80 .length
= L4_24XX_SIZE
,
85 #ifdef CONFIG_SOC_OMAP2420
86 static struct map_desc omap242x_io_desc
[] __initdata
= {
88 .virtual = DSP_MEM_2420_VIRT
,
89 .pfn
= __phys_to_pfn(DSP_MEM_2420_PHYS
),
90 .length
= DSP_MEM_2420_SIZE
,
94 .virtual = DSP_IPI_2420_VIRT
,
95 .pfn
= __phys_to_pfn(DSP_IPI_2420_PHYS
),
96 .length
= DSP_IPI_2420_SIZE
,
100 .virtual = DSP_MMU_2420_VIRT
,
101 .pfn
= __phys_to_pfn(DSP_MMU_2420_PHYS
),
102 .length
= DSP_MMU_2420_SIZE
,
109 #ifdef CONFIG_SOC_OMAP2430
110 static struct map_desc omap243x_io_desc
[] __initdata
= {
112 .virtual = L4_WK_243X_VIRT
,
113 .pfn
= __phys_to_pfn(L4_WK_243X_PHYS
),
114 .length
= L4_WK_243X_SIZE
,
118 .virtual = OMAP243X_GPMC_VIRT
,
119 .pfn
= __phys_to_pfn(OMAP243X_GPMC_PHYS
),
120 .length
= OMAP243X_GPMC_SIZE
,
124 .virtual = OMAP243X_SDRC_VIRT
,
125 .pfn
= __phys_to_pfn(OMAP243X_SDRC_PHYS
),
126 .length
= OMAP243X_SDRC_SIZE
,
130 .virtual = OMAP243X_SMS_VIRT
,
131 .pfn
= __phys_to_pfn(OMAP243X_SMS_PHYS
),
132 .length
= OMAP243X_SMS_SIZE
,
139 #ifdef CONFIG_ARCH_OMAP3
140 static struct map_desc omap34xx_io_desc
[] __initdata
= {
142 .virtual = L3_34XX_VIRT
,
143 .pfn
= __phys_to_pfn(L3_34XX_PHYS
),
144 .length
= L3_34XX_SIZE
,
148 .virtual = L4_34XX_VIRT
,
149 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
150 .length
= L4_34XX_SIZE
,
154 .virtual = OMAP34XX_GPMC_VIRT
,
155 .pfn
= __phys_to_pfn(OMAP34XX_GPMC_PHYS
),
156 .length
= OMAP34XX_GPMC_SIZE
,
160 .virtual = OMAP343X_SMS_VIRT
,
161 .pfn
= __phys_to_pfn(OMAP343X_SMS_PHYS
),
162 .length
= OMAP343X_SMS_SIZE
,
166 .virtual = OMAP343X_SDRC_VIRT
,
167 .pfn
= __phys_to_pfn(OMAP343X_SDRC_PHYS
),
168 .length
= OMAP343X_SDRC_SIZE
,
172 .virtual = L4_PER_34XX_VIRT
,
173 .pfn
= __phys_to_pfn(L4_PER_34XX_PHYS
),
174 .length
= L4_PER_34XX_SIZE
,
178 .virtual = L4_EMU_34XX_VIRT
,
179 .pfn
= __phys_to_pfn(L4_EMU_34XX_PHYS
),
180 .length
= L4_EMU_34XX_SIZE
,
186 #ifdef CONFIG_SOC_TI81XX
187 static struct map_desc omapti81xx_io_desc
[] __initdata
= {
189 .virtual = L4_34XX_VIRT
,
190 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
191 .length
= L4_34XX_SIZE
,
197 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
198 static struct map_desc omapam33xx_io_desc
[] __initdata
= {
200 .virtual = L4_34XX_VIRT
,
201 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
202 .length
= L4_34XX_SIZE
,
206 .virtual = L4_WK_AM33XX_VIRT
,
207 .pfn
= __phys_to_pfn(L4_WK_AM33XX_PHYS
),
208 .length
= L4_WK_AM33XX_SIZE
,
214 #ifdef CONFIG_ARCH_OMAP4
215 static struct map_desc omap44xx_io_desc
[] __initdata
= {
217 .virtual = L3_44XX_VIRT
,
218 .pfn
= __phys_to_pfn(L3_44XX_PHYS
),
219 .length
= L3_44XX_SIZE
,
223 .virtual = L4_44XX_VIRT
,
224 .pfn
= __phys_to_pfn(L4_44XX_PHYS
),
225 .length
= L4_44XX_SIZE
,
229 .virtual = L4_PER_44XX_VIRT
,
230 .pfn
= __phys_to_pfn(L4_PER_44XX_PHYS
),
231 .length
= L4_PER_44XX_SIZE
,
237 #if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
238 static struct map_desc omap54xx_io_desc
[] __initdata
= {
240 .virtual = L3_54XX_VIRT
,
241 .pfn
= __phys_to_pfn(L3_54XX_PHYS
),
242 .length
= L3_54XX_SIZE
,
246 .virtual = L4_54XX_VIRT
,
247 .pfn
= __phys_to_pfn(L4_54XX_PHYS
),
248 .length
= L4_54XX_SIZE
,
252 .virtual = L4_WK_54XX_VIRT
,
253 .pfn
= __phys_to_pfn(L4_WK_54XX_PHYS
),
254 .length
= L4_WK_54XX_SIZE
,
258 .virtual = L4_PER_54XX_VIRT
,
259 .pfn
= __phys_to_pfn(L4_PER_54XX_PHYS
),
260 .length
= L4_PER_54XX_SIZE
,
266 #ifdef CONFIG_SOC_OMAP2420
267 void __init
omap242x_map_io(void)
269 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
270 iotable_init(omap242x_io_desc
, ARRAY_SIZE(omap242x_io_desc
));
274 #ifdef CONFIG_SOC_OMAP2430
275 void __init
omap243x_map_io(void)
277 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
278 iotable_init(omap243x_io_desc
, ARRAY_SIZE(omap243x_io_desc
));
282 #ifdef CONFIG_ARCH_OMAP3
283 void __init
omap3_map_io(void)
285 iotable_init(omap34xx_io_desc
, ARRAY_SIZE(omap34xx_io_desc
));
289 #ifdef CONFIG_SOC_TI81XX
290 void __init
ti81xx_map_io(void)
292 iotable_init(omapti81xx_io_desc
, ARRAY_SIZE(omapti81xx_io_desc
));
296 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
297 void __init
am33xx_map_io(void)
299 iotable_init(omapam33xx_io_desc
, ARRAY_SIZE(omapam33xx_io_desc
));
303 #ifdef CONFIG_ARCH_OMAP4
304 void __init
omap4_map_io(void)
306 iotable_init(omap44xx_io_desc
, ARRAY_SIZE(omap44xx_io_desc
));
307 omap_barriers_init();
311 #if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
312 void __init
omap5_map_io(void)
314 iotable_init(omap54xx_io_desc
, ARRAY_SIZE(omap54xx_io_desc
));
315 omap_barriers_init();
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 */
362 #ifdef CONFIG_PM_RUNTIME
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_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE
),
387 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE
));
388 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE
), NULL
);
389 omap2xxx_check_revision();
392 omap2xxx_voltagedomains_init();
393 omap242x_powerdomains_init();
394 omap242x_clockdomains_init();
395 omap2420_hwmod_init();
396 omap_hwmod_init_postsetup();
397 omap_clk_soc_init
= omap2420_dt_clk_init
;
398 rate_table
= omap2420_rate_table
;
401 void __init
omap2420_init_late(void)
403 omap_common_late_init();
405 omap2_clk_enable_autoidle_all();
409 #ifdef CONFIG_SOC_OMAP2430
410 void __init
omap2430_init_early(void)
412 omap2_set_globals_tap(OMAP243X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4900a000));
413 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE
),
414 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE
));
415 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE
),
417 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE
));
418 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE
), NULL
);
419 omap2xxx_check_revision();
422 omap2xxx_voltagedomains_init();
423 omap243x_powerdomains_init();
424 omap243x_clockdomains_init();
425 omap2430_hwmod_init();
426 omap_hwmod_init_postsetup();
427 omap_clk_soc_init
= omap2430_dt_clk_init
;
428 rate_table
= omap2430_rate_table
;
431 void __init
omap2430_init_late(void)
433 omap_common_late_init();
435 omap2_clk_enable_autoidle_all();
440 * Currently only board-omap3beagle.c should call this because of the
441 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
443 #ifdef CONFIG_ARCH_OMAP3
444 void __init
omap3_init_early(void)
446 omap2_set_globals_tap(OMAP343X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4830A000));
447 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE
),
448 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE
));
449 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE
),
451 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE
));
452 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE
), NULL
);
453 omap3xxx_check_revision();
454 omap3xxx_check_features();
457 omap3xxx_voltagedomains_init();
458 omap3xxx_powerdomains_init();
459 omap3xxx_clockdomains_init();
460 omap3xxx_hwmod_init();
461 omap_hwmod_init_postsetup();
462 omap_clk_soc_init
= omap3xxx_clk_init
;
465 void __init
omap3430_init_early(void)
468 if (of_have_populated_dt())
469 omap_clk_soc_init
= omap3430_dt_clk_init
;
472 void __init
omap35xx_init_early(void)
475 if (of_have_populated_dt())
476 omap_clk_soc_init
= omap3430_dt_clk_init
;
479 void __init
omap3630_init_early(void)
482 if (of_have_populated_dt())
483 omap_clk_soc_init
= omap3630_dt_clk_init
;
486 void __init
am35xx_init_early(void)
489 if (of_have_populated_dt())
490 omap_clk_soc_init
= am35xx_dt_clk_init
;
493 void __init
ti81xx_init_early(void)
495 omap2_set_globals_tap(OMAP343X_CLASS
,
496 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
497 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE
),
499 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE
));
500 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE
), NULL
);
501 omap3xxx_check_revision();
502 ti81xx_check_features();
503 omap3xxx_voltagedomains_init();
504 omap3xxx_powerdomains_init();
505 omap3xxx_clockdomains_init();
506 omap3xxx_hwmod_init();
507 omap_hwmod_init_postsetup();
508 if (of_have_populated_dt())
509 omap_clk_soc_init
= ti81xx_dt_clk_init
;
511 omap_clk_soc_init
= omap3xxx_clk_init
;
514 void __init
omap3_init_late(void)
516 omap_common_late_init();
518 omap2_clk_enable_autoidle_all();
521 void __init
omap3430_init_late(void)
523 omap_common_late_init();
525 omap2_clk_enable_autoidle_all();
528 void __init
omap35xx_init_late(void)
530 omap_common_late_init();
532 omap2_clk_enable_autoidle_all();
535 void __init
omap3630_init_late(void)
537 omap_common_late_init();
539 omap2_clk_enable_autoidle_all();
542 void __init
am35xx_init_late(void)
544 omap_common_late_init();
546 omap2_clk_enable_autoidle_all();
549 void __init
ti81xx_init_late(void)
551 omap_common_late_init();
553 omap2_clk_enable_autoidle_all();
557 #ifdef CONFIG_SOC_AM33XX
558 void __init
am33xx_init_early(void)
560 omap2_set_globals_tap(AM335X_CLASS
,
561 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
562 omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE
),
564 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE
));
565 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE
), NULL
);
566 omap3xxx_check_revision();
567 am33xx_check_features();
568 am33xx_powerdomains_init();
569 am33xx_clockdomains_init();
571 omap_hwmod_init_postsetup();
572 omap_clk_soc_init
= am33xx_dt_clk_init
;
575 void __init
am33xx_init_late(void)
577 omap_common_late_init();
581 #ifdef CONFIG_SOC_AM43XX
582 void __init
am43xx_init_early(void)
584 omap2_set_globals_tap(AM335X_CLASS
,
585 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
586 omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE
),
588 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE
));
589 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE
), NULL
);
590 omap_prm_base_init();
592 omap3xxx_check_revision();
593 am33xx_check_features();
594 am43xx_powerdomains_init();
595 am43xx_clockdomains_init();
597 omap_hwmod_init_postsetup();
598 omap_l2_cache_init();
599 omap_clk_soc_init
= am43xx_dt_clk_init
;
602 void __init
am43xx_init_late(void)
604 omap_common_late_init();
608 #ifdef CONFIG_ARCH_OMAP4
609 void __init
omap4430_init_early(void)
611 omap2_set_globals_tap(OMAP443X_CLASS
,
612 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
));
613 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
),
614 OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE
));
615 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE
));
616 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE
),
617 OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE
));
618 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE
));
619 omap_prm_base_init();
621 omap4xxx_check_revision();
622 omap4xxx_check_features();
623 omap4_pm_init_early();
625 omap44xx_voltagedomains_init();
626 omap44xx_powerdomains_init();
627 omap44xx_clockdomains_init();
628 omap44xx_hwmod_init();
629 omap_hwmod_init_postsetup();
630 omap_l2_cache_init();
631 omap_clk_soc_init
= omap4xxx_dt_clk_init
;
634 void __init
omap4430_init_late(void)
636 omap_common_late_init();
638 omap2_clk_enable_autoidle_all();
642 #ifdef CONFIG_SOC_OMAP5
643 void __init
omap5_init_early(void)
645 omap2_set_globals_tap(OMAP54XX_CLASS
,
646 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
));
647 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
),
648 OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE
));
649 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE
));
650 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE
),
651 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE
));
652 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
653 omap4_pm_init_early();
654 omap_prm_base_init();
657 omap5xxx_check_revision();
658 omap54xx_voltagedomains_init();
659 omap54xx_powerdomains_init();
660 omap54xx_clockdomains_init();
661 omap54xx_hwmod_init();
662 omap_hwmod_init_postsetup();
663 omap_clk_soc_init
= omap5xxx_dt_clk_init
;
666 void __init
omap5_init_late(void)
668 omap_common_late_init();
670 omap2_clk_enable_autoidle_all();
674 #ifdef CONFIG_SOC_DRA7XX
675 void __init
dra7xx_init_early(void)
677 omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE
));
678 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
),
679 OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE
));
680 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE
));
681 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_AON_BASE
),
682 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE
));
683 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
684 omap4_pm_init_early();
685 omap_prm_base_init();
688 dra7xxx_check_revision();
689 dra7xx_powerdomains_init();
690 dra7xx_clockdomains_init();
692 omap_hwmod_init_postsetup();
693 omap_clk_soc_init
= dra7xx_dt_clk_init
;
696 void __init
dra7xx_init_late(void)
698 omap_common_late_init();
700 omap2_clk_enable_autoidle_all();
705 void __init
omap_sdrc_init(struct omap_sdrc_params
*sdrc_cs0
,
706 struct omap_sdrc_params
*sdrc_cs1
)
710 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
711 omap2_sdrc_init(sdrc_cs0
, sdrc_cs1
);
712 _omap2_init_reprogram_sdrc();
716 int __init
omap_clk_init(void)
720 if (!omap_clk_soc_init
)
723 ti_clk_init_features();
725 ret
= of_prcm_init();
731 ti_dt_clk_init_retry_clks();
733 ti_dt_clockdomains_setup();
735 ret
= omap_clk_soc_init();