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"
51 #include "prcm_mpu44xx.h"
52 #include "prminst44xx.h"
60 * omap_clk_soc_init: points to a function that does the SoC-specific
61 * clock initializations
63 static int (*omap_clk_soc_init)(void);
66 * The machine specific code may provide the extra mapping besides the
67 * default mapping provided here.
70 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
71 static struct map_desc omap24xx_io_desc[] __initdata = {
73 .virtual = L3_24XX_VIRT,
74 .pfn = __phys_to_pfn(L3_24XX_PHYS),
75 .length = L3_24XX_SIZE,
79 .virtual = L4_24XX_VIRT,
80 .pfn = __phys_to_pfn(L4_24XX_PHYS),
81 .length = L4_24XX_SIZE,
86 #ifdef CONFIG_SOC_OMAP2420
87 static struct map_desc omap242x_io_desc[] __initdata = {
89 .virtual = DSP_MEM_2420_VIRT,
90 .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS),
91 .length = DSP_MEM_2420_SIZE,
95 .virtual = DSP_IPI_2420_VIRT,
96 .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS),
97 .length = DSP_IPI_2420_SIZE,
101 .virtual = DSP_MMU_2420_VIRT,
102 .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS),
103 .length = DSP_MMU_2420_SIZE,
110 #ifdef CONFIG_SOC_OMAP2430
111 static struct map_desc omap243x_io_desc[] __initdata = {
113 .virtual = L4_WK_243X_VIRT,
114 .pfn = __phys_to_pfn(L4_WK_243X_PHYS),
115 .length = L4_WK_243X_SIZE,
119 .virtual = OMAP243X_GPMC_VIRT,
120 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS),
121 .length = OMAP243X_GPMC_SIZE,
125 .virtual = OMAP243X_SDRC_VIRT,
126 .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS),
127 .length = OMAP243X_SDRC_SIZE,
131 .virtual = OMAP243X_SMS_VIRT,
132 .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS),
133 .length = OMAP243X_SMS_SIZE,
140 #ifdef CONFIG_ARCH_OMAP3
141 static struct map_desc omap34xx_io_desc[] __initdata = {
143 .virtual = L3_34XX_VIRT,
144 .pfn = __phys_to_pfn(L3_34XX_PHYS),
145 .length = L3_34XX_SIZE,
149 .virtual = L4_34XX_VIRT,
150 .pfn = __phys_to_pfn(L4_34XX_PHYS),
151 .length = L4_34XX_SIZE,
155 .virtual = OMAP34XX_GPMC_VIRT,
156 .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
157 .length = OMAP34XX_GPMC_SIZE,
161 .virtual = OMAP343X_SMS_VIRT,
162 .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS),
163 .length = OMAP343X_SMS_SIZE,
167 .virtual = OMAP343X_SDRC_VIRT,
168 .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS),
169 .length = OMAP343X_SDRC_SIZE,
173 .virtual = L4_PER_34XX_VIRT,
174 .pfn = __phys_to_pfn(L4_PER_34XX_PHYS),
175 .length = L4_PER_34XX_SIZE,
179 .virtual = L4_EMU_34XX_VIRT,
180 .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS),
181 .length = L4_EMU_34XX_SIZE,
187 #ifdef CONFIG_SOC_TI81XX
188 static struct map_desc omapti81xx_io_desc[] __initdata = {
190 .virtual = L4_34XX_VIRT,
191 .pfn = __phys_to_pfn(L4_34XX_PHYS),
192 .length = L4_34XX_SIZE,
198 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
199 static struct map_desc omapam33xx_io_desc[] __initdata = {
201 .virtual = L4_34XX_VIRT,
202 .pfn = __phys_to_pfn(L4_34XX_PHYS),
203 .length = L4_34XX_SIZE,
207 .virtual = L4_WK_AM33XX_VIRT,
208 .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS),
209 .length = L4_WK_AM33XX_SIZE,
215 #ifdef CONFIG_ARCH_OMAP4
216 static struct map_desc omap44xx_io_desc[] __initdata = {
218 .virtual = L3_44XX_VIRT,
219 .pfn = __phys_to_pfn(L3_44XX_PHYS),
220 .length = L3_44XX_SIZE,
224 .virtual = L4_44XX_VIRT,
225 .pfn = __phys_to_pfn(L4_44XX_PHYS),
226 .length = L4_44XX_SIZE,
230 .virtual = L4_PER_44XX_VIRT,
231 .pfn = __phys_to_pfn(L4_PER_44XX_PHYS),
232 .length = L4_PER_44XX_SIZE,
238 #ifdef CONFIG_SOC_OMAP5
239 static struct map_desc omap54xx_io_desc[] __initdata = {
241 .virtual = L3_54XX_VIRT,
242 .pfn = __phys_to_pfn(L3_54XX_PHYS),
243 .length = L3_54XX_SIZE,
247 .virtual = L4_54XX_VIRT,
248 .pfn = __phys_to_pfn(L4_54XX_PHYS),
249 .length = L4_54XX_SIZE,
253 .virtual = L4_WK_54XX_VIRT,
254 .pfn = __phys_to_pfn(L4_WK_54XX_PHYS),
255 .length = L4_WK_54XX_SIZE,
259 .virtual = L4_PER_54XX_VIRT,
260 .pfn = __phys_to_pfn(L4_PER_54XX_PHYS),
261 .length = L4_PER_54XX_SIZE,
267 #ifdef CONFIG_SOC_DRA7XX
268 static struct map_desc dra7xx_io_desc[] __initdata = {
270 .virtual = L4_CFG_MPU_DRA7XX_VIRT,
271 .pfn = __phys_to_pfn(L4_CFG_MPU_DRA7XX_PHYS),
272 .length = L4_CFG_MPU_DRA7XX_SIZE,
276 .virtual = L3_MAIN_SN_DRA7XX_VIRT,
277 .pfn = __phys_to_pfn(L3_MAIN_SN_DRA7XX_PHYS),
278 .length = L3_MAIN_SN_DRA7XX_SIZE,
282 .virtual = L4_PER1_DRA7XX_VIRT,
283 .pfn = __phys_to_pfn(L4_PER1_DRA7XX_PHYS),
284 .length = L4_PER1_DRA7XX_SIZE,
288 .virtual = L4_PER2_DRA7XX_VIRT,
289 .pfn = __phys_to_pfn(L4_PER2_DRA7XX_PHYS),
290 .length = L4_PER2_DRA7XX_SIZE,
294 .virtual = L4_PER3_DRA7XX_VIRT,
295 .pfn = __phys_to_pfn(L4_PER3_DRA7XX_PHYS),
296 .length = L4_PER3_DRA7XX_SIZE,
300 .virtual = L4_CFG_DRA7XX_VIRT,
301 .pfn = __phys_to_pfn(L4_CFG_DRA7XX_PHYS),
302 .length = L4_CFG_DRA7XX_SIZE,
306 .virtual = L4_WKUP_DRA7XX_VIRT,
307 .pfn = __phys_to_pfn(L4_WKUP_DRA7XX_PHYS),
308 .length = L4_WKUP_DRA7XX_SIZE,
314 #ifdef CONFIG_SOC_OMAP2420
315 void __init omap242x_map_io(void)
317 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
318 iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
322 #ifdef CONFIG_SOC_OMAP2430
323 void __init omap243x_map_io(void)
325 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
326 iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
330 #ifdef CONFIG_ARCH_OMAP3
331 void __init omap3_map_io(void)
333 iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
337 #ifdef CONFIG_SOC_TI81XX
338 void __init ti81xx_map_io(void)
340 iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
344 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
345 void __init am33xx_map_io(void)
347 iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
351 #ifdef CONFIG_ARCH_OMAP4
352 void __init omap4_map_io(void)
354 iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
355 omap_barriers_init();
359 #ifdef CONFIG_SOC_OMAP5
360 void __init omap5_map_io(void)
362 iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
363 omap_barriers_init();
367 #ifdef CONFIG_SOC_DRA7XX
368 void __init dra7xx_map_io(void)
370 iotable_init(dra7xx_io_desc, ARRAY_SIZE(dra7xx_io_desc));
371 omap_barriers_init();
375 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
377 * Sets the CORE DPLL3 M2 divider to the same value that it's at
378 * currently. This has the effect of setting the SDRC SDRAM AC timing
379 * registers to the values currently defined by the kernel. Currently
380 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
381 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
382 * or passes along the return value of clk_set_rate().
384 static int __init _omap2_init_reprogram_sdrc(void)
386 struct clk *dpll3_m2_ck;
390 if (!cpu_is_omap34xx())
393 dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
394 if (IS_ERR(dpll3_m2_ck))
397 rate = clk_get_rate(dpll3_m2_ck);
398 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
399 v = clk_set_rate(dpll3_m2_ck, rate);
401 pr_err("dpll3_m2_clk rate change failed: %d\n", v);
403 clk_put(dpll3_m2_ck);
408 static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
410 return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
413 static void __init omap_hwmod_init_postsetup(void)
417 /* Set the default postsetup state for all hwmods */
419 postsetup_state = _HWMOD_STATE_IDLE;
421 postsetup_state = _HWMOD_STATE_ENABLED;
423 omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
425 omap_pm_if_early_init();
428 static void __init __maybe_unused omap_common_late_init(void)
430 omap2_common_pm_late_init();
431 omap_soc_device_init();
434 #ifdef CONFIG_SOC_OMAP2420
435 void __init omap2420_init_early(void)
437 omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
438 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
439 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
440 omap2_control_base_init();
441 omap2xxx_check_revision();
442 omap2_prcm_base_init();
443 omap2xxx_voltagedomains_init();
444 omap242x_powerdomains_init();
445 omap242x_clockdomains_init();
446 omap2420_hwmod_init();
447 omap_hwmod_init_postsetup();
448 omap_clk_soc_init = omap2420_dt_clk_init;
449 rate_table = omap2420_rate_table;
452 void __init omap2420_init_late(void)
454 omap_common_late_init();
456 omap2_clk_enable_autoidle_all();
460 #ifdef CONFIG_SOC_OMAP2430
461 void __init omap2430_init_early(void)
463 omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
464 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
465 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
466 omap2_control_base_init();
467 omap2xxx_check_revision();
468 omap2_prcm_base_init();
469 omap2xxx_voltagedomains_init();
470 omap243x_powerdomains_init();
471 omap243x_clockdomains_init();
472 omap2430_hwmod_init();
473 omap_hwmod_init_postsetup();
474 omap_clk_soc_init = omap2430_dt_clk_init;
475 rate_table = omap2430_rate_table;
478 void __init omap2430_init_late(void)
480 omap_common_late_init();
482 omap2_clk_enable_autoidle_all();
487 * Currently only board-omap3beagle.c should call this because of the
488 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
490 #ifdef CONFIG_ARCH_OMAP3
491 void __init omap3_init_early(void)
493 omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
494 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
495 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
496 /* XXX: remove these once OMAP3 is DT only */
497 if (!of_have_populated_dt()) {
498 omap2_set_globals_control(
499 OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE));
500 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
501 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
504 omap2_control_base_init();
505 omap3xxx_check_revision();
506 omap3xxx_check_features();
507 omap2_prcm_base_init();
508 /* XXX: remove these once OMAP3 is DT only */
509 if (!of_have_populated_dt()) {
510 omap3xxx_prm_init(NULL);
511 omap3xxx_cm_init(NULL);
513 omap3xxx_voltagedomains_init();
514 omap3xxx_powerdomains_init();
515 omap3xxx_clockdomains_init();
516 omap3xxx_hwmod_init();
517 omap_hwmod_init_postsetup();
518 if (!of_have_populated_dt()) {
519 omap3_control_legacy_iomap_init();
521 omap_clk_soc_init = am35xx_clk_legacy_init;
522 else if (cpu_is_omap3630())
523 omap_clk_soc_init = omap36xx_clk_legacy_init;
524 else if (omap_rev() == OMAP3430_REV_ES1_0)
525 omap_clk_soc_init = omap3430es1_clk_legacy_init;
527 omap_clk_soc_init = omap3430_clk_legacy_init;
531 void __init omap3430_init_early(void)
534 if (of_have_populated_dt())
535 omap_clk_soc_init = omap3430_dt_clk_init;
538 void __init omap35xx_init_early(void)
541 if (of_have_populated_dt())
542 omap_clk_soc_init = omap3430_dt_clk_init;
545 void __init omap3630_init_early(void)
548 if (of_have_populated_dt())
549 omap_clk_soc_init = omap3630_dt_clk_init;
552 void __init am35xx_init_early(void)
555 if (of_have_populated_dt())
556 omap_clk_soc_init = am35xx_dt_clk_init;
559 void __init omap3_init_late(void)
561 omap_common_late_init();
563 omap2_clk_enable_autoidle_all();
566 void __init omap3430_init_late(void)
568 omap_common_late_init();
570 omap2_clk_enable_autoidle_all();
573 void __init omap35xx_init_late(void)
575 omap_common_late_init();
577 omap2_clk_enable_autoidle_all();
580 void __init omap3630_init_late(void)
582 omap_common_late_init();
584 omap2_clk_enable_autoidle_all();
587 void __init am35xx_init_late(void)
589 omap_common_late_init();
591 omap2_clk_enable_autoidle_all();
594 void __init ti81xx_init_late(void)
596 omap_common_late_init();
597 omap2_clk_enable_autoidle_all();
601 #ifdef CONFIG_SOC_TI81XX
602 void __init ti814x_init_early(void)
604 omap2_set_globals_tap(TI814X_CLASS,
605 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
606 omap2_control_base_init();
607 omap3xxx_check_revision();
608 ti81xx_check_features();
609 omap2_prcm_base_init();
610 omap3xxx_voltagedomains_init();
611 omap3xxx_powerdomains_init();
612 ti814x_clockdomains_init();
614 omap_hwmod_init_postsetup();
615 omap_clk_soc_init = dm814x_dt_clk_init;
618 void __init ti816x_init_early(void)
620 omap2_set_globals_tap(TI816X_CLASS,
621 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
622 omap2_control_base_init();
623 omap3xxx_check_revision();
624 ti81xx_check_features();
625 omap2_prcm_base_init();
626 omap3xxx_voltagedomains_init();
627 omap3xxx_powerdomains_init();
628 ti816x_clockdomains_init();
630 omap_hwmod_init_postsetup();
631 if (of_have_populated_dt())
632 omap_clk_soc_init = dm816x_dt_clk_init;
636 #ifdef CONFIG_SOC_AM33XX
637 void __init am33xx_init_early(void)
639 omap2_set_globals_tap(AM335X_CLASS,
640 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
641 omap2_control_base_init();
642 omap3xxx_check_revision();
643 am33xx_check_features();
644 omap2_prcm_base_init();
645 am33xx_powerdomains_init();
646 am33xx_clockdomains_init();
648 omap_hwmod_init_postsetup();
649 omap_clk_soc_init = am33xx_dt_clk_init;
652 void __init am33xx_init_late(void)
654 omap_common_late_init();
658 #ifdef CONFIG_SOC_AM43XX
659 void __init am43xx_init_early(void)
661 omap2_set_globals_tap(AM335X_CLASS,
662 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
663 omap2_control_base_init();
664 omap3xxx_check_revision();
665 am33xx_check_features();
666 omap2_prcm_base_init();
667 am43xx_powerdomains_init();
668 am43xx_clockdomains_init();
670 omap_hwmod_init_postsetup();
671 omap_l2_cache_init();
672 omap_clk_soc_init = am43xx_dt_clk_init;
675 void __init am43xx_init_late(void)
677 omap_common_late_init();
678 omap2_clk_enable_autoidle_all();
682 #ifdef CONFIG_ARCH_OMAP4
683 void __init omap4430_init_early(void)
685 omap2_set_globals_tap(OMAP443X_CLASS,
686 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
687 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
688 omap2_control_base_init();
689 omap4xxx_check_revision();
690 omap4xxx_check_features();
691 omap2_prcm_base_init();
692 omap4_sar_ram_init();
693 omap4_mpuss_early_init();
694 omap4_pm_init_early();
695 omap44xx_voltagedomains_init();
696 omap44xx_powerdomains_init();
697 omap44xx_clockdomains_init();
698 omap44xx_hwmod_init();
699 omap_hwmod_init_postsetup();
700 omap_l2_cache_init();
701 omap_clk_soc_init = omap4xxx_dt_clk_init;
704 void __init omap4430_init_late(void)
706 omap_common_late_init();
708 omap2_clk_enable_autoidle_all();
712 #ifdef CONFIG_SOC_OMAP5
713 void __init omap5_init_early(void)
715 omap2_set_globals_tap(OMAP54XX_CLASS,
716 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
717 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
718 omap2_control_base_init();
719 omap2_prcm_base_init();
720 omap5xxx_check_revision();
721 omap4_sar_ram_init();
722 omap4_mpuss_early_init();
723 omap4_pm_init_early();
724 omap54xx_voltagedomains_init();
725 omap54xx_powerdomains_init();
726 omap54xx_clockdomains_init();
727 omap54xx_hwmod_init();
728 omap_hwmod_init_postsetup();
729 omap_clk_soc_init = omap5xxx_dt_clk_init;
732 void __init omap5_init_late(void)
734 omap_common_late_init();
736 omap2_clk_enable_autoidle_all();
740 #ifdef CONFIG_SOC_DRA7XX
741 void __init dra7xx_init_early(void)
743 omap2_set_globals_tap(DRA7XX_CLASS,
744 OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
745 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
746 omap2_control_base_init();
747 omap4_pm_init_early();
748 omap2_prcm_base_init();
749 dra7xxx_check_revision();
750 dra7xx_powerdomains_init();
751 dra7xx_clockdomains_init();
753 omap_hwmod_init_postsetup();
754 omap_clk_soc_init = dra7xx_dt_clk_init;
757 void __init dra7xx_init_late(void)
759 omap_common_late_init();
761 omap2_clk_enable_autoidle_all();
766 void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
767 struct omap_sdrc_params *sdrc_cs1)
771 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
772 omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
773 _omap2_init_reprogram_sdrc();
777 int __init omap_clk_init(void)
781 if (!omap_clk_soc_init)
784 ti_clk_init_features();
786 omap2_clk_setup_ll_ops();
788 if (of_have_populated_dt()) {
789 ret = omap_control_init();
793 ret = omap_prcm_init();
799 ti_dt_clk_init_retry_clks();
801 ti_dt_clockdomains_setup();
804 ret = omap_clk_soc_init();