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();