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,
234 #ifdef CONFIG_OMAP4_ERRATA_I688
236 .virtual = OMAP4_SRAM_VA,
237 .pfn = __phys_to_pfn(OMAP4_SRAM_PA),
239 .type = MT_MEMORY_RW_SO,
246 #if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
247 static struct map_desc omap54xx_io_desc[] __initdata = {
249 .virtual = L3_54XX_VIRT,
250 .pfn = __phys_to_pfn(L3_54XX_PHYS),
251 .length = L3_54XX_SIZE,
255 .virtual = L4_54XX_VIRT,
256 .pfn = __phys_to_pfn(L4_54XX_PHYS),
257 .length = L4_54XX_SIZE,
261 .virtual = L4_WK_54XX_VIRT,
262 .pfn = __phys_to_pfn(L4_WK_54XX_PHYS),
263 .length = L4_WK_54XX_SIZE,
267 .virtual = L4_PER_54XX_VIRT,
268 .pfn = __phys_to_pfn(L4_PER_54XX_PHYS),
269 .length = L4_PER_54XX_SIZE,
272 #ifdef CONFIG_OMAP4_ERRATA_I688
274 .virtual = OMAP4_SRAM_VA,
275 .pfn = __phys_to_pfn(OMAP4_SRAM_PA),
277 .type = MT_MEMORY_RW_SO,
283 #ifdef CONFIG_SOC_OMAP2420
284 void __init omap242x_map_io(void)
286 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
287 iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
291 #ifdef CONFIG_SOC_OMAP2430
292 void __init omap243x_map_io(void)
294 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
295 iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
299 #ifdef CONFIG_ARCH_OMAP3
300 void __init omap3_map_io(void)
302 iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
306 #ifdef CONFIG_SOC_TI81XX
307 void __init ti81xx_map_io(void)
309 iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
313 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
314 void __init am33xx_map_io(void)
316 iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
320 #ifdef CONFIG_ARCH_OMAP4
321 void __init omap4_map_io(void)
323 iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
324 omap_barriers_init();
328 #if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
329 void __init omap5_map_io(void)
331 iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
332 omap_barriers_init();
336 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
338 * Sets the CORE DPLL3 M2 divider to the same value that it's at
339 * currently. This has the effect of setting the SDRC SDRAM AC timing
340 * registers to the values currently defined by the kernel. Currently
341 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
342 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
343 * or passes along the return value of clk_set_rate().
345 static int __init _omap2_init_reprogram_sdrc(void)
347 struct clk *dpll3_m2_ck;
351 if (!cpu_is_omap34xx())
354 dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
355 if (IS_ERR(dpll3_m2_ck))
358 rate = clk_get_rate(dpll3_m2_ck);
359 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
360 v = clk_set_rate(dpll3_m2_ck, rate);
362 pr_err("dpll3_m2_clk rate change failed: %d\n", v);
364 clk_put(dpll3_m2_ck);
369 static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
371 return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
374 static void __init omap_hwmod_init_postsetup(void)
378 /* Set the default postsetup state for all hwmods */
379 #ifdef CONFIG_PM_RUNTIME
380 postsetup_state = _HWMOD_STATE_IDLE;
382 postsetup_state = _HWMOD_STATE_ENABLED;
384 omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
386 omap_pm_if_early_init();
389 static void __init __maybe_unused omap_common_late_init(void)
391 omap_mux_late_init();
392 omap2_common_pm_late_init();
393 omap_soc_device_init();
396 #ifdef CONFIG_SOC_OMAP2420
397 void __init omap2420_init_early(void)
399 omap2_set_globals_tap(OMAP242X_CLASS, OMAP2_L4_IO_ADDRESS(0x48014000));
400 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
401 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE));
402 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
404 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE));
405 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE), NULL);
406 omap2xxx_check_revision();
409 omap2xxx_voltagedomains_init();
410 omap242x_powerdomains_init();
411 omap242x_clockdomains_init();
412 omap2420_hwmod_init();
413 omap_hwmod_init_postsetup();
414 if (of_have_populated_dt()) {
415 omap_clk_soc_init = omap2420_dt_clk_init;
416 rate_table = omap2420_rate_table;
418 omap_clk_soc_init = omap2420_clk_init;
422 void __init omap2420_init_late(void)
424 omap_common_late_init();
426 omap2_clk_enable_autoidle_all();
430 #ifdef CONFIG_SOC_OMAP2430
431 void __init omap2430_init_early(void)
433 omap2_set_globals_tap(OMAP243X_CLASS, OMAP2_L4_IO_ADDRESS(0x4900a000));
434 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
435 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE));
436 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
438 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE));
439 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE), NULL);
440 omap2xxx_check_revision();
443 omap2xxx_voltagedomains_init();
444 omap243x_powerdomains_init();
445 omap243x_clockdomains_init();
446 omap2430_hwmod_init();
447 omap_hwmod_init_postsetup();
448 if (of_have_populated_dt()) {
449 omap_clk_soc_init = omap2430_dt_clk_init;
450 rate_table = omap2430_rate_table;
452 omap_clk_soc_init = omap2430_clk_init;
456 void __init omap2430_init_late(void)
458 omap_common_late_init();
460 omap2_clk_enable_autoidle_all();
465 * Currently only board-omap3beagle.c should call this because of the
466 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
468 #ifdef CONFIG_ARCH_OMAP3
469 void __init omap3_init_early(void)
471 omap2_set_globals_tap(OMAP343X_CLASS, OMAP2_L4_IO_ADDRESS(0x4830A000));
472 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
473 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE));
474 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
476 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE));
477 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE), NULL);
478 omap3xxx_check_revision();
479 omap3xxx_check_features();
482 omap3xxx_voltagedomains_init();
483 omap3xxx_powerdomains_init();
484 omap3xxx_clockdomains_init();
485 omap3xxx_hwmod_init();
486 omap_hwmod_init_postsetup();
487 omap_clk_soc_init = omap3xxx_clk_init;
490 void __init omap3430_init_early(void)
493 if (of_have_populated_dt())
494 omap_clk_soc_init = omap3430_dt_clk_init;
497 void __init omap35xx_init_early(void)
500 if (of_have_populated_dt())
501 omap_clk_soc_init = omap3430_dt_clk_init;
504 void __init omap3630_init_early(void)
507 if (of_have_populated_dt())
508 omap_clk_soc_init = omap3630_dt_clk_init;
511 void __init am35xx_init_early(void)
514 if (of_have_populated_dt())
515 omap_clk_soc_init = am35xx_dt_clk_init;
518 void __init ti81xx_init_early(void)
520 omap2_set_globals_tap(OMAP343X_CLASS,
521 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE));
522 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
524 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE));
525 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE), NULL);
526 omap3xxx_check_revision();
527 ti81xx_check_features();
528 omap3xxx_voltagedomains_init();
529 omap3xxx_powerdomains_init();
530 omap3xxx_clockdomains_init();
531 omap3xxx_hwmod_init();
532 omap_hwmod_init_postsetup();
533 if (of_have_populated_dt())
534 omap_clk_soc_init = ti81xx_dt_clk_init;
536 omap_clk_soc_init = omap3xxx_clk_init;
539 void __init omap3_init_late(void)
541 omap_common_late_init();
543 omap2_clk_enable_autoidle_all();
546 void __init omap3430_init_late(void)
548 omap_common_late_init();
550 omap2_clk_enable_autoidle_all();
553 void __init omap35xx_init_late(void)
555 omap_common_late_init();
557 omap2_clk_enable_autoidle_all();
560 void __init omap3630_init_late(void)
562 omap_common_late_init();
564 omap2_clk_enable_autoidle_all();
567 void __init am35xx_init_late(void)
569 omap_common_late_init();
571 omap2_clk_enable_autoidle_all();
574 void __init ti81xx_init_late(void)
576 omap_common_late_init();
578 omap2_clk_enable_autoidle_all();
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_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
589 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
590 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL);
591 omap3xxx_check_revision();
592 am33xx_check_features();
593 am33xx_powerdomains_init();
594 am33xx_clockdomains_init();
596 omap_hwmod_init_postsetup();
597 omap_clk_soc_init = am33xx_dt_clk_init;
600 void __init am33xx_init_late(void)
602 omap_common_late_init();
606 #ifdef CONFIG_SOC_AM43XX
607 void __init am43xx_init_early(void)
609 omap2_set_globals_tap(AM335X_CLASS,
610 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE));
611 omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
613 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
614 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
615 omap_prm_base_init();
617 omap3xxx_check_revision();
618 am33xx_check_features();
619 am43xx_powerdomains_init();
620 am43xx_clockdomains_init();
622 omap_hwmod_init_postsetup();
623 omap_l2_cache_init();
624 omap_clk_soc_init = am43xx_dt_clk_init;
627 void __init am43xx_init_late(void)
629 omap_common_late_init();
633 #ifdef CONFIG_ARCH_OMAP4
634 void __init omap4430_init_early(void)
636 omap2_set_globals_tap(OMAP443X_CLASS,
637 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE));
638 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
639 OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE));
640 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE));
641 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
642 OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE));
643 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE));
644 omap_prm_base_init();
646 omap4xxx_check_revision();
647 omap4xxx_check_features();
648 omap4_pm_init_early();
650 omap44xx_voltagedomains_init();
651 omap44xx_powerdomains_init();
652 omap44xx_clockdomains_init();
653 omap44xx_hwmod_init();
654 omap_hwmod_init_postsetup();
655 omap_l2_cache_init();
656 omap_clk_soc_init = omap4xxx_dt_clk_init;
659 void __init omap4430_init_late(void)
661 omap_common_late_init();
663 omap2_clk_enable_autoidle_all();
667 #ifdef CONFIG_SOC_OMAP5
668 void __init omap5_init_early(void)
670 omap2_set_globals_tap(OMAP54XX_CLASS,
671 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE));
672 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
673 OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE));
674 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
675 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
676 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
677 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
678 omap_prm_base_init();
681 omap5xxx_check_revision();
682 omap54xx_voltagedomains_init();
683 omap54xx_powerdomains_init();
684 omap54xx_clockdomains_init();
685 omap54xx_hwmod_init();
686 omap_hwmod_init_postsetup();
687 omap_clk_soc_init = omap5xxx_dt_clk_init;
690 void __init omap5_init_late(void)
692 omap_common_late_init();
696 #ifdef CONFIG_SOC_DRA7XX
697 void __init dra7xx_init_early(void)
699 omap2_set_globals_tap(-1, OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE));
700 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
701 OMAP2_L4_IO_ADDRESS(DRA7XX_CTRL_BASE));
702 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE));
703 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(DRA7XX_CM_CORE_AON_BASE),
704 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE));
705 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE));
706 omap_prm_base_init();
709 dra7xxx_check_revision();
710 dra7xx_powerdomains_init();
711 dra7xx_clockdomains_init();
713 omap_hwmod_init_postsetup();
714 omap_clk_soc_init = dra7xx_dt_clk_init;
717 void __init dra7xx_init_late(void)
719 omap_common_late_init();
724 void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
725 struct omap_sdrc_params *sdrc_cs1)
729 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
730 omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
731 _omap2_init_reprogram_sdrc();
735 int __init omap_clk_init(void)
739 if (!omap_clk_soc_init)
742 ret = of_prcm_init();
744 ret = omap_clk_soc_init();