1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-omap2/io.c
5 * OMAP2 I/O mapping code
7 * Copyright (C) 2005 Nokia Corporation
8 * Copyright (C) 2007-2009 Texas Instruments
11 * Juha Yrjola <juha.yrjola@nokia.com>
12 * Syed Khasim <x0khasim@ti.com>
14 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
16 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
20 #include <linux/clk.h>
23 #include <asm/mach/map.h>
25 #include <linux/omap-dma.h>
27 #include "omap_hwmod.h"
31 #include "powerdomain.h"
32 #include "clockdomain.h"
35 #include "clock2xxx.h"
36 #include "clock3xxx.h"
47 #include "prcm_mpu44xx.h"
48 #include "prminst44xx.h"
56 * omap_clk_soc_init: points to a function that does the SoC-specific
57 * clock initializations
59 static int (*omap_clk_soc_init
)(void);
62 * The machine specific code may provide the extra mapping besides the
63 * default mapping provided here.
66 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
67 static struct map_desc omap24xx_io_desc
[] __initdata
= {
69 .virtual = L3_24XX_VIRT
,
70 .pfn
= __phys_to_pfn(L3_24XX_PHYS
),
71 .length
= L3_24XX_SIZE
,
75 .virtual = L4_24XX_VIRT
,
76 .pfn
= __phys_to_pfn(L4_24XX_PHYS
),
77 .length
= L4_24XX_SIZE
,
82 #ifdef CONFIG_SOC_OMAP2420
83 static struct map_desc omap242x_io_desc
[] __initdata
= {
85 .virtual = DSP_MEM_2420_VIRT
,
86 .pfn
= __phys_to_pfn(DSP_MEM_2420_PHYS
),
87 .length
= DSP_MEM_2420_SIZE
,
91 .virtual = DSP_IPI_2420_VIRT
,
92 .pfn
= __phys_to_pfn(DSP_IPI_2420_PHYS
),
93 .length
= DSP_IPI_2420_SIZE
,
97 .virtual = DSP_MMU_2420_VIRT
,
98 .pfn
= __phys_to_pfn(DSP_MMU_2420_PHYS
),
99 .length
= DSP_MMU_2420_SIZE
,
106 #ifdef CONFIG_SOC_OMAP2430
107 static struct map_desc omap243x_io_desc
[] __initdata
= {
109 .virtual = L4_WK_243X_VIRT
,
110 .pfn
= __phys_to_pfn(L4_WK_243X_PHYS
),
111 .length
= L4_WK_243X_SIZE
,
115 .virtual = OMAP243X_GPMC_VIRT
,
116 .pfn
= __phys_to_pfn(OMAP243X_GPMC_PHYS
),
117 .length
= OMAP243X_GPMC_SIZE
,
121 .virtual = OMAP243X_SDRC_VIRT
,
122 .pfn
= __phys_to_pfn(OMAP243X_SDRC_PHYS
),
123 .length
= OMAP243X_SDRC_SIZE
,
127 .virtual = OMAP243X_SMS_VIRT
,
128 .pfn
= __phys_to_pfn(OMAP243X_SMS_PHYS
),
129 .length
= OMAP243X_SMS_SIZE
,
136 #ifdef CONFIG_ARCH_OMAP3
137 static struct map_desc omap34xx_io_desc
[] __initdata
= {
139 .virtual = L3_34XX_VIRT
,
140 .pfn
= __phys_to_pfn(L3_34XX_PHYS
),
141 .length
= L3_34XX_SIZE
,
145 .virtual = L4_34XX_VIRT
,
146 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
147 .length
= L4_34XX_SIZE
,
151 .virtual = OMAP34XX_GPMC_VIRT
,
152 .pfn
= __phys_to_pfn(OMAP34XX_GPMC_PHYS
),
153 .length
= OMAP34XX_GPMC_SIZE
,
157 .virtual = OMAP343X_SMS_VIRT
,
158 .pfn
= __phys_to_pfn(OMAP343X_SMS_PHYS
),
159 .length
= OMAP343X_SMS_SIZE
,
163 .virtual = OMAP343X_SDRC_VIRT
,
164 .pfn
= __phys_to_pfn(OMAP343X_SDRC_PHYS
),
165 .length
= OMAP343X_SDRC_SIZE
,
169 .virtual = L4_PER_34XX_VIRT
,
170 .pfn
= __phys_to_pfn(L4_PER_34XX_PHYS
),
171 .length
= L4_PER_34XX_SIZE
,
175 .virtual = L4_EMU_34XX_VIRT
,
176 .pfn
= __phys_to_pfn(L4_EMU_34XX_PHYS
),
177 .length
= L4_EMU_34XX_SIZE
,
183 #ifdef CONFIG_SOC_TI81XX
184 static struct map_desc omapti81xx_io_desc
[] __initdata
= {
186 .virtual = L4_34XX_VIRT
,
187 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
188 .length
= L4_34XX_SIZE
,
194 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
195 static struct map_desc omapam33xx_io_desc
[] __initdata
= {
197 .virtual = L4_34XX_VIRT
,
198 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
199 .length
= L4_34XX_SIZE
,
203 .virtual = L4_WK_AM33XX_VIRT
,
204 .pfn
= __phys_to_pfn(L4_WK_AM33XX_PHYS
),
205 .length
= L4_WK_AM33XX_SIZE
,
211 #ifdef CONFIG_ARCH_OMAP4
212 static struct map_desc omap44xx_io_desc
[] __initdata
= {
214 .virtual = L3_44XX_VIRT
,
215 .pfn
= __phys_to_pfn(L3_44XX_PHYS
),
216 .length
= L3_44XX_SIZE
,
220 .virtual = L4_44XX_VIRT
,
221 .pfn
= __phys_to_pfn(L4_44XX_PHYS
),
222 .length
= L4_44XX_SIZE
,
226 .virtual = L4_PER_44XX_VIRT
,
227 .pfn
= __phys_to_pfn(L4_PER_44XX_PHYS
),
228 .length
= L4_PER_44XX_SIZE
,
234 #ifdef CONFIG_SOC_OMAP5
235 static struct map_desc omap54xx_io_desc
[] __initdata
= {
237 .virtual = L3_54XX_VIRT
,
238 .pfn
= __phys_to_pfn(L3_54XX_PHYS
),
239 .length
= L3_54XX_SIZE
,
243 .virtual = L4_54XX_VIRT
,
244 .pfn
= __phys_to_pfn(L4_54XX_PHYS
),
245 .length
= L4_54XX_SIZE
,
249 .virtual = L4_WK_54XX_VIRT
,
250 .pfn
= __phys_to_pfn(L4_WK_54XX_PHYS
),
251 .length
= L4_WK_54XX_SIZE
,
255 .virtual = L4_PER_54XX_VIRT
,
256 .pfn
= __phys_to_pfn(L4_PER_54XX_PHYS
),
257 .length
= L4_PER_54XX_SIZE
,
263 #ifdef CONFIG_SOC_DRA7XX
264 static struct map_desc dra7xx_io_desc
[] __initdata
= {
266 .virtual = L4_CFG_MPU_DRA7XX_VIRT
,
267 .pfn
= __phys_to_pfn(L4_CFG_MPU_DRA7XX_PHYS
),
268 .length
= L4_CFG_MPU_DRA7XX_SIZE
,
272 .virtual = L3_MAIN_SN_DRA7XX_VIRT
,
273 .pfn
= __phys_to_pfn(L3_MAIN_SN_DRA7XX_PHYS
),
274 .length
= L3_MAIN_SN_DRA7XX_SIZE
,
278 .virtual = L4_PER1_DRA7XX_VIRT
,
279 .pfn
= __phys_to_pfn(L4_PER1_DRA7XX_PHYS
),
280 .length
= L4_PER1_DRA7XX_SIZE
,
284 .virtual = L4_PER2_DRA7XX_VIRT
,
285 .pfn
= __phys_to_pfn(L4_PER2_DRA7XX_PHYS
),
286 .length
= L4_PER2_DRA7XX_SIZE
,
290 .virtual = L4_PER3_DRA7XX_VIRT
,
291 .pfn
= __phys_to_pfn(L4_PER3_DRA7XX_PHYS
),
292 .length
= L4_PER3_DRA7XX_SIZE
,
296 .virtual = L4_CFG_DRA7XX_VIRT
,
297 .pfn
= __phys_to_pfn(L4_CFG_DRA7XX_PHYS
),
298 .length
= L4_CFG_DRA7XX_SIZE
,
302 .virtual = L4_WKUP_DRA7XX_VIRT
,
303 .pfn
= __phys_to_pfn(L4_WKUP_DRA7XX_PHYS
),
304 .length
= L4_WKUP_DRA7XX_SIZE
,
310 #ifdef CONFIG_SOC_OMAP2420
311 void __init
omap242x_map_io(void)
313 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
314 iotable_init(omap242x_io_desc
, ARRAY_SIZE(omap242x_io_desc
));
318 #ifdef CONFIG_SOC_OMAP2430
319 void __init
omap243x_map_io(void)
321 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
322 iotable_init(omap243x_io_desc
, ARRAY_SIZE(omap243x_io_desc
));
326 #ifdef CONFIG_ARCH_OMAP3
327 void __init
omap3_map_io(void)
329 iotable_init(omap34xx_io_desc
, ARRAY_SIZE(omap34xx_io_desc
));
333 #ifdef CONFIG_SOC_TI81XX
334 void __init
ti81xx_map_io(void)
336 iotable_init(omapti81xx_io_desc
, ARRAY_SIZE(omapti81xx_io_desc
));
340 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
341 void __init
am33xx_map_io(void)
343 iotable_init(omapam33xx_io_desc
, ARRAY_SIZE(omapam33xx_io_desc
));
347 #ifdef CONFIG_ARCH_OMAP4
348 void __init
omap4_map_io(void)
350 iotable_init(omap44xx_io_desc
, ARRAY_SIZE(omap44xx_io_desc
));
351 omap_barriers_init();
355 #ifdef CONFIG_SOC_OMAP5
356 void __init
omap5_map_io(void)
358 iotable_init(omap54xx_io_desc
, ARRAY_SIZE(omap54xx_io_desc
));
359 omap_barriers_init();
363 #ifdef CONFIG_SOC_DRA7XX
364 void __init
dra7xx_map_io(void)
366 iotable_init(dra7xx_io_desc
, ARRAY_SIZE(dra7xx_io_desc
));
367 omap_barriers_init();
371 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
373 * Sets the CORE DPLL3 M2 divider to the same value that it's at
374 * currently. This has the effect of setting the SDRC SDRAM AC timing
375 * registers to the values currently defined by the kernel. Currently
376 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
377 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
378 * or passes along the return value of clk_set_rate().
380 static int __init
_omap2_init_reprogram_sdrc(void)
382 struct clk
*dpll3_m2_ck
;
386 if (!cpu_is_omap34xx())
389 dpll3_m2_ck
= clk_get(NULL
, "dpll3_m2_ck");
390 if (IS_ERR(dpll3_m2_ck
))
393 rate
= clk_get_rate(dpll3_m2_ck
);
394 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate
);
395 v
= clk_set_rate(dpll3_m2_ck
, rate
);
397 pr_err("dpll3_m2_clk rate change failed: %d\n", v
);
399 clk_put(dpll3_m2_ck
);
404 static int _set_hwmod_postsetup_state(struct omap_hwmod
*oh
, void *data
)
406 return omap_hwmod_set_postsetup_state(oh
, *(u8
*)data
);
409 static void __init __maybe_unused
omap_hwmod_init_postsetup(void)
411 u8 postsetup_state
= _HWMOD_STATE_DEFAULT
;
413 /* Set the default postsetup state for all hwmods */
414 omap_hwmod_for_each(_set_hwmod_postsetup_state
, &postsetup_state
);
417 #ifdef CONFIG_SOC_OMAP2420
418 void __init
omap2420_init_early(void)
420 omap2_set_globals_tap(OMAP242X_CLASS
, OMAP2_L4_IO_ADDRESS(0x48014000));
421 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE
),
422 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE
));
423 omap2_control_base_init();
424 omap2xxx_check_revision();
425 omap2_prcm_base_init();
426 omap2xxx_voltagedomains_init();
427 omap242x_powerdomains_init();
428 omap242x_clockdomains_init();
429 omap2420_hwmod_init();
430 omap_hwmod_init_postsetup();
431 omap_clk_soc_init
= omap2420_dt_clk_init
;
432 rate_table
= omap2420_rate_table
;
435 void __init
omap2420_init_late(void)
437 omap_pm_soc_init
= omap2_pm_init
;
441 #ifdef CONFIG_SOC_OMAP2430
442 void __init
omap2430_init_early(void)
444 omap2_set_globals_tap(OMAP243X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4900a000));
445 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE
),
446 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE
));
447 omap2_control_base_init();
448 omap2xxx_check_revision();
449 omap2_prcm_base_init();
450 omap2xxx_voltagedomains_init();
451 omap243x_powerdomains_init();
452 omap243x_clockdomains_init();
453 omap2430_hwmod_init();
454 omap_hwmod_init_postsetup();
455 omap_clk_soc_init
= omap2430_dt_clk_init
;
456 rate_table
= omap2430_rate_table
;
459 void __init
omap2430_init_late(void)
461 omap_pm_soc_init
= omap2_pm_init
;
466 * Currently only board-omap3beagle.c should call this because of the
467 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
469 #ifdef CONFIG_ARCH_OMAP3
470 void __init
omap3_init_early(void)
472 omap2_set_globals_tap(OMAP343X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4830A000));
473 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE
),
474 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE
));
475 omap2_control_base_init();
476 omap3xxx_check_revision();
477 omap3xxx_check_features();
478 omap2_prcm_base_init();
479 omap3xxx_voltagedomains_init();
480 omap3xxx_powerdomains_init();
481 omap3xxx_clockdomains_init();
482 omap3xxx_hwmod_init();
483 omap_hwmod_init_postsetup();
486 void __init
omap3430_init_early(void)
489 omap_clk_soc_init
= omap3430_dt_clk_init
;
492 void __init
omap35xx_init_early(void)
495 omap_clk_soc_init
= omap3430_dt_clk_init
;
498 void __init
omap3630_init_early(void)
501 omap_clk_soc_init
= omap3630_dt_clk_init
;
504 void __init
am35xx_init_early(void)
507 omap_clk_soc_init
= am35xx_dt_clk_init
;
510 void __init
omap3_init_late(void)
512 omap_pm_soc_init
= omap3_pm_init
;
515 void __init
ti81xx_init_late(void)
517 omap_pm_soc_init
= omap_pm_nop_init
;
521 #ifdef CONFIG_SOC_TI81XX
522 void __init
ti814x_init_early(void)
524 omap2_set_globals_tap(TI814X_CLASS
,
525 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
526 omap2_control_base_init();
527 omap3xxx_check_revision();
528 ti81xx_check_features();
529 omap2_prcm_base_init();
530 omap3xxx_voltagedomains_init();
531 omap3xxx_powerdomains_init();
532 ti814x_clockdomains_init();
534 omap_hwmod_init_postsetup();
535 omap_clk_soc_init
= dm814x_dt_clk_init
;
538 void __init
ti816x_init_early(void)
540 omap2_set_globals_tap(TI816X_CLASS
,
541 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
542 omap2_control_base_init();
543 omap3xxx_check_revision();
544 ti81xx_check_features();
545 omap2_prcm_base_init();
546 omap3xxx_voltagedomains_init();
547 omap3xxx_powerdomains_init();
548 ti816x_clockdomains_init();
550 omap_hwmod_init_postsetup();
551 omap_clk_soc_init
= dm816x_dt_clk_init
;
555 #ifdef CONFIG_SOC_AM33XX
556 void __init
am33xx_init_early(void)
558 omap2_set_globals_tap(AM335X_CLASS
,
559 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
560 omap2_control_base_init();
561 omap3xxx_check_revision();
562 am33xx_check_features();
563 omap2_prcm_base_init();
564 am33xx_powerdomains_init();
565 am33xx_clockdomains_init();
567 omap_hwmod_init_postsetup();
568 omap_clk_soc_init
= am33xx_dt_clk_init
;
571 void __init
am33xx_init_late(void)
573 omap_pm_soc_init
= amx3_common_pm_init
;
577 #ifdef CONFIG_SOC_AM43XX
578 void __init
am43xx_init_early(void)
580 omap2_set_globals_tap(AM335X_CLASS
,
581 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
582 omap2_control_base_init();
583 omap3xxx_check_revision();
584 am33xx_check_features();
585 omap2_prcm_base_init();
586 am43xx_powerdomains_init();
587 am43xx_clockdomains_init();
589 omap_hwmod_init_postsetup();
590 omap_l2_cache_init();
591 omap_clk_soc_init
= am43xx_dt_clk_init
;
594 void __init
am43xx_init_late(void)
596 omap_pm_soc_init
= amx3_common_pm_init
;
600 #ifdef CONFIG_ARCH_OMAP4
601 void __init
omap4430_init_early(void)
603 omap2_set_globals_tap(OMAP443X_CLASS
,
604 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
));
605 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE
));
606 omap2_control_base_init();
607 omap4xxx_check_revision();
608 omap4xxx_check_features();
609 omap2_prcm_base_init();
610 omap4_sar_ram_init();
611 omap4_mpuss_early_init();
612 omap4_pm_init_early();
613 omap44xx_voltagedomains_init();
614 omap44xx_powerdomains_init();
615 omap44xx_clockdomains_init();
616 omap44xx_hwmod_init();
617 omap_hwmod_init_postsetup();
618 omap_l2_cache_init();
619 omap_clk_soc_init
= omap4xxx_dt_clk_init
;
622 void __init
omap4430_init_late(void)
624 omap_pm_soc_init
= omap4_pm_init
;
628 #ifdef CONFIG_SOC_OMAP5
629 void __init
omap5_init_early(void)
631 omap2_set_globals_tap(OMAP54XX_CLASS
,
632 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
));
633 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
634 omap2_control_base_init();
635 omap2_prcm_base_init();
636 omap5xxx_check_revision();
637 omap4_sar_ram_init();
638 omap4_mpuss_early_init();
639 omap4_pm_init_early();
640 omap54xx_voltagedomains_init();
641 omap54xx_powerdomains_init();
642 omap54xx_clockdomains_init();
643 omap54xx_hwmod_init();
644 omap_hwmod_init_postsetup();
645 omap_clk_soc_init
= omap5xxx_dt_clk_init
;
648 void __init
omap5_init_late(void)
650 omap_pm_soc_init
= omap4_pm_init
;
654 #ifdef CONFIG_SOC_DRA7XX
655 void __init
dra7xx_init_early(void)
657 omap2_set_globals_tap(DRA7XX_CLASS
,
658 OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE
));
659 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
660 omap2_control_base_init();
661 omap4_pm_init_early();
662 omap2_prcm_base_init();
663 dra7xxx_check_revision();
664 dra7xx_powerdomains_init();
665 dra7xx_clockdomains_init();
667 omap_hwmod_init_postsetup();
668 omap_clk_soc_init
= dra7xx_dt_clk_init
;
671 void __init
dra7xx_init_late(void)
673 omap_pm_soc_init
= omap4_pm_init
;
678 void __init
omap_sdrc_init(struct omap_sdrc_params
*sdrc_cs0
,
679 struct omap_sdrc_params
*sdrc_cs1
)
683 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
684 omap2_sdrc_init(sdrc_cs0
, sdrc_cs1
);
685 _omap2_init_reprogram_sdrc();
689 int __init
omap_clk_init(void)
693 if (!omap_clk_soc_init
)
696 ti_clk_init_features();
698 omap2_clk_setup_ll_ops();
700 ret
= omap_control_init();
704 ret
= omap_prcm_init();
710 ti_dt_clk_init_retry_clks();
712 ti_dt_clockdomains_setup();
714 ret
= omap_clk_soc_init();