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"
44 #include "prcm_mpu44xx.h"
45 #include "prminst44xx.h"
51 #include "omap-secure.h"
54 * omap_clk_soc_init: points to a function that does the SoC-specific
55 * clock initializations
57 static int (*omap_clk_soc_init
)(void);
60 * The machine specific code may provide the extra mapping besides the
61 * default mapping provided here.
64 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
65 static struct map_desc omap24xx_io_desc
[] __initdata
= {
67 .virtual = L3_24XX_VIRT
,
68 .pfn
= __phys_to_pfn(L3_24XX_PHYS
),
69 .length
= L3_24XX_SIZE
,
73 .virtual = L4_24XX_VIRT
,
74 .pfn
= __phys_to_pfn(L4_24XX_PHYS
),
75 .length
= L4_24XX_SIZE
,
80 #ifdef CONFIG_SOC_OMAP2420
81 static struct map_desc omap242x_io_desc
[] __initdata
= {
83 .virtual = DSP_MEM_2420_VIRT
,
84 .pfn
= __phys_to_pfn(DSP_MEM_2420_PHYS
),
85 .length
= DSP_MEM_2420_SIZE
,
89 .virtual = DSP_IPI_2420_VIRT
,
90 .pfn
= __phys_to_pfn(DSP_IPI_2420_PHYS
),
91 .length
= DSP_IPI_2420_SIZE
,
95 .virtual = DSP_MMU_2420_VIRT
,
96 .pfn
= __phys_to_pfn(DSP_MMU_2420_PHYS
),
97 .length
= DSP_MMU_2420_SIZE
,
104 #ifdef CONFIG_SOC_OMAP2430
105 static struct map_desc omap243x_io_desc
[] __initdata
= {
107 .virtual = L4_WK_243X_VIRT
,
108 .pfn
= __phys_to_pfn(L4_WK_243X_PHYS
),
109 .length
= L4_WK_243X_SIZE
,
113 .virtual = OMAP243X_GPMC_VIRT
,
114 .pfn
= __phys_to_pfn(OMAP243X_GPMC_PHYS
),
115 .length
= OMAP243X_GPMC_SIZE
,
119 .virtual = OMAP243X_SDRC_VIRT
,
120 .pfn
= __phys_to_pfn(OMAP243X_SDRC_PHYS
),
121 .length
= OMAP243X_SDRC_SIZE
,
125 .virtual = OMAP243X_SMS_VIRT
,
126 .pfn
= __phys_to_pfn(OMAP243X_SMS_PHYS
),
127 .length
= OMAP243X_SMS_SIZE
,
134 #ifdef CONFIG_ARCH_OMAP3
135 static struct map_desc omap34xx_io_desc
[] __initdata
= {
137 .virtual = L3_34XX_VIRT
,
138 .pfn
= __phys_to_pfn(L3_34XX_PHYS
),
139 .length
= L3_34XX_SIZE
,
143 .virtual = L4_34XX_VIRT
,
144 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
145 .length
= L4_34XX_SIZE
,
149 .virtual = OMAP34XX_GPMC_VIRT
,
150 .pfn
= __phys_to_pfn(OMAP34XX_GPMC_PHYS
),
151 .length
= OMAP34XX_GPMC_SIZE
,
155 .virtual = OMAP343X_SMS_VIRT
,
156 .pfn
= __phys_to_pfn(OMAP343X_SMS_PHYS
),
157 .length
= OMAP343X_SMS_SIZE
,
161 .virtual = OMAP343X_SDRC_VIRT
,
162 .pfn
= __phys_to_pfn(OMAP343X_SDRC_PHYS
),
163 .length
= OMAP343X_SDRC_SIZE
,
167 .virtual = L4_PER_34XX_VIRT
,
168 .pfn
= __phys_to_pfn(L4_PER_34XX_PHYS
),
169 .length
= L4_PER_34XX_SIZE
,
173 .virtual = L4_EMU_34XX_VIRT
,
174 .pfn
= __phys_to_pfn(L4_EMU_34XX_PHYS
),
175 .length
= L4_EMU_34XX_SIZE
,
181 #ifdef CONFIG_SOC_TI81XX
182 static struct map_desc omapti81xx_io_desc
[] __initdata
= {
184 .virtual = L4_34XX_VIRT
,
185 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
186 .length
= L4_34XX_SIZE
,
192 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
193 static struct map_desc omapam33xx_io_desc
[] __initdata
= {
195 .virtual = L4_34XX_VIRT
,
196 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
197 .length
= L4_34XX_SIZE
,
201 .virtual = L4_WK_AM33XX_VIRT
,
202 .pfn
= __phys_to_pfn(L4_WK_AM33XX_PHYS
),
203 .length
= L4_WK_AM33XX_SIZE
,
209 #ifdef CONFIG_ARCH_OMAP4
210 static struct map_desc omap44xx_io_desc
[] __initdata
= {
212 .virtual = L3_44XX_VIRT
,
213 .pfn
= __phys_to_pfn(L3_44XX_PHYS
),
214 .length
= L3_44XX_SIZE
,
218 .virtual = L4_44XX_VIRT
,
219 .pfn
= __phys_to_pfn(L4_44XX_PHYS
),
220 .length
= L4_44XX_SIZE
,
224 .virtual = L4_PER_44XX_VIRT
,
225 .pfn
= __phys_to_pfn(L4_PER_44XX_PHYS
),
226 .length
= L4_PER_44XX_SIZE
,
232 #ifdef CONFIG_SOC_OMAP5
233 static struct map_desc omap54xx_io_desc
[] __initdata
= {
235 .virtual = L3_54XX_VIRT
,
236 .pfn
= __phys_to_pfn(L3_54XX_PHYS
),
237 .length
= L3_54XX_SIZE
,
241 .virtual = L4_54XX_VIRT
,
242 .pfn
= __phys_to_pfn(L4_54XX_PHYS
),
243 .length
= L4_54XX_SIZE
,
247 .virtual = L4_WK_54XX_VIRT
,
248 .pfn
= __phys_to_pfn(L4_WK_54XX_PHYS
),
249 .length
= L4_WK_54XX_SIZE
,
253 .virtual = L4_PER_54XX_VIRT
,
254 .pfn
= __phys_to_pfn(L4_PER_54XX_PHYS
),
255 .length
= L4_PER_54XX_SIZE
,
261 #ifdef CONFIG_SOC_DRA7XX
262 static struct map_desc dra7xx_io_desc
[] __initdata
= {
264 .virtual = L4_CFG_MPU_DRA7XX_VIRT
,
265 .pfn
= __phys_to_pfn(L4_CFG_MPU_DRA7XX_PHYS
),
266 .length
= L4_CFG_MPU_DRA7XX_SIZE
,
270 .virtual = L3_MAIN_SN_DRA7XX_VIRT
,
271 .pfn
= __phys_to_pfn(L3_MAIN_SN_DRA7XX_PHYS
),
272 .length
= L3_MAIN_SN_DRA7XX_SIZE
,
276 .virtual = L4_PER1_DRA7XX_VIRT
,
277 .pfn
= __phys_to_pfn(L4_PER1_DRA7XX_PHYS
),
278 .length
= L4_PER1_DRA7XX_SIZE
,
282 .virtual = L4_PER2_DRA7XX_VIRT
,
283 .pfn
= __phys_to_pfn(L4_PER2_DRA7XX_PHYS
),
284 .length
= L4_PER2_DRA7XX_SIZE
,
288 .virtual = L4_PER3_DRA7XX_VIRT
,
289 .pfn
= __phys_to_pfn(L4_PER3_DRA7XX_PHYS
),
290 .length
= L4_PER3_DRA7XX_SIZE
,
294 .virtual = L4_CFG_DRA7XX_VIRT
,
295 .pfn
= __phys_to_pfn(L4_CFG_DRA7XX_PHYS
),
296 .length
= L4_CFG_DRA7XX_SIZE
,
300 .virtual = L4_WKUP_DRA7XX_VIRT
,
301 .pfn
= __phys_to_pfn(L4_WKUP_DRA7XX_PHYS
),
302 .length
= L4_WKUP_DRA7XX_SIZE
,
308 #ifdef CONFIG_SOC_OMAP2420
309 void __init
omap242x_map_io(void)
311 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
312 iotable_init(omap242x_io_desc
, ARRAY_SIZE(omap242x_io_desc
));
316 #ifdef CONFIG_SOC_OMAP2430
317 void __init
omap243x_map_io(void)
319 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
320 iotable_init(omap243x_io_desc
, ARRAY_SIZE(omap243x_io_desc
));
324 #ifdef CONFIG_ARCH_OMAP3
325 void __init
omap3_map_io(void)
327 iotable_init(omap34xx_io_desc
, ARRAY_SIZE(omap34xx_io_desc
));
331 #ifdef CONFIG_SOC_TI81XX
332 void __init
ti81xx_map_io(void)
334 iotable_init(omapti81xx_io_desc
, ARRAY_SIZE(omapti81xx_io_desc
));
338 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
339 void __init
am33xx_map_io(void)
341 iotable_init(omapam33xx_io_desc
, ARRAY_SIZE(omapam33xx_io_desc
));
345 #ifdef CONFIG_ARCH_OMAP4
346 void __init
omap4_map_io(void)
348 iotable_init(omap44xx_io_desc
, ARRAY_SIZE(omap44xx_io_desc
));
349 omap_barriers_init();
353 #ifdef CONFIG_SOC_OMAP5
354 void __init
omap5_map_io(void)
356 iotable_init(omap54xx_io_desc
, ARRAY_SIZE(omap54xx_io_desc
));
357 omap_barriers_init();
361 #ifdef CONFIG_SOC_DRA7XX
362 void __init
dra7xx_map_io(void)
364 iotable_init(dra7xx_io_desc
, ARRAY_SIZE(dra7xx_io_desc
));
365 omap_barriers_init();
369 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
371 * Sets the CORE DPLL3 M2 divider to the same value that it's at
372 * currently. This has the effect of setting the SDRC SDRAM AC timing
373 * registers to the values currently defined by the kernel. Currently
374 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
375 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
376 * or passes along the return value of clk_set_rate().
378 static int __init
_omap2_init_reprogram_sdrc(void)
380 struct clk
*dpll3_m2_ck
;
384 if (!cpu_is_omap34xx())
387 dpll3_m2_ck
= clk_get(NULL
, "dpll3_m2_ck");
388 if (IS_ERR(dpll3_m2_ck
))
391 rate
= clk_get_rate(dpll3_m2_ck
);
392 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate
);
393 v
= clk_set_rate(dpll3_m2_ck
, rate
);
395 pr_err("dpll3_m2_clk rate change failed: %d\n", v
);
397 clk_put(dpll3_m2_ck
);
402 #ifdef CONFIG_OMAP_HWMOD
403 static int _set_hwmod_postsetup_state(struct omap_hwmod
*oh
, void *data
)
405 return omap_hwmod_set_postsetup_state(oh
, *(u8
*)data
);
408 static void __init __maybe_unused
omap_hwmod_init_postsetup(void)
410 u8 postsetup_state
= _HWMOD_STATE_DEFAULT
;
412 /* Set the default postsetup state for all hwmods */
413 omap_hwmod_for_each(_set_hwmod_postsetup_state
, &postsetup_state
);
416 static inline void omap_hwmod_init_postsetup(void)
421 #ifdef CONFIG_SOC_OMAP2420
422 void __init
omap2420_init_early(void)
424 omap2_set_globals_tap(OMAP242X_CLASS
, OMAP2_L4_IO_ADDRESS(0x48014000));
425 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE
),
426 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE
));
427 omap2_control_base_init();
428 omap2xxx_check_revision();
429 omap2_prcm_base_init();
430 omap2xxx_voltagedomains_init();
431 omap242x_powerdomains_init();
432 omap242x_clockdomains_init();
433 omap2420_hwmod_init();
434 omap_hwmod_init_postsetup();
435 omap_clk_soc_init
= omap2420_dt_clk_init
;
436 rate_table
= omap2420_rate_table
;
440 #ifdef CONFIG_SOC_OMAP2430
441 void __init
omap2430_init_early(void)
443 omap2_set_globals_tap(OMAP243X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4900a000));
444 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE
),
445 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE
));
446 omap2_control_base_init();
447 omap2xxx_check_revision();
448 omap2_prcm_base_init();
449 omap2xxx_voltagedomains_init();
450 omap243x_powerdomains_init();
451 omap243x_clockdomains_init();
452 omap2430_hwmod_init();
453 omap_hwmod_init_postsetup();
454 omap_clk_soc_init
= omap2430_dt_clk_init
;
455 rate_table
= omap2430_rate_table
;
460 * Currently only board-omap3beagle.c should call this because of the
461 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
463 #ifdef CONFIG_ARCH_OMAP3
464 static void __init
omap3_init_early(void)
466 omap2_set_globals_tap(OMAP343X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4830A000));
467 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE
),
468 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE
));
469 omap2_control_base_init();
470 omap3xxx_check_revision();
471 omap3xxx_check_features();
472 omap2_prcm_base_init();
473 omap3xxx_voltagedomains_init();
474 omap3xxx_powerdomains_init();
475 omap3xxx_clockdomains_init();
476 omap3xxx_hwmod_init();
477 omap_hwmod_init_postsetup();
481 void __init
omap3430_init_early(void)
484 omap_clk_soc_init
= omap3430_dt_clk_init
;
487 void __init
omap3630_init_early(void)
490 omap_clk_soc_init
= omap3630_dt_clk_init
;
493 void __init
am35xx_init_early(void)
496 omap_clk_soc_init
= am35xx_dt_clk_init
;
499 void __init
omap3_init_late(void)
501 omap_pm_soc_init
= omap3_pm_init
;
504 void __init
ti81xx_init_late(void)
506 omap_pm_soc_init
= omap_pm_nop_init
;
510 #ifdef CONFIG_SOC_TI81XX
511 void __init
ti814x_init_early(void)
513 omap2_set_globals_tap(TI814X_CLASS
,
514 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
515 omap2_control_base_init();
516 omap3xxx_check_revision();
517 ti81xx_check_features();
518 omap2_prcm_base_init();
519 omap3xxx_voltagedomains_init();
520 omap3xxx_powerdomains_init();
521 ti814x_clockdomains_init();
523 omap_hwmod_init_postsetup();
524 omap_clk_soc_init
= dm814x_dt_clk_init
;
528 void __init
ti816x_init_early(void)
530 omap2_set_globals_tap(TI816X_CLASS
,
531 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
532 omap2_control_base_init();
533 omap3xxx_check_revision();
534 ti81xx_check_features();
535 omap2_prcm_base_init();
536 omap3xxx_voltagedomains_init();
537 omap3xxx_powerdomains_init();
538 ti816x_clockdomains_init();
540 omap_hwmod_init_postsetup();
541 omap_clk_soc_init
= dm816x_dt_clk_init
;
546 #ifdef CONFIG_SOC_AM33XX
547 void __init
am33xx_init_early(void)
549 omap2_set_globals_tap(AM335X_CLASS
,
550 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
551 omap2_control_base_init();
552 omap3xxx_check_revision();
553 am33xx_check_features();
554 omap2_prcm_base_init();
555 am33xx_powerdomains_init();
556 am33xx_clockdomains_init();
557 omap_clk_soc_init
= am33xx_dt_clk_init
;
561 void __init
am33xx_init_late(void)
563 omap_pm_soc_init
= amx3_common_pm_init
;
567 #ifdef CONFIG_SOC_AM43XX
568 void __init
am43xx_init_early(void)
570 omap2_set_globals_tap(AM335X_CLASS
,
571 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
572 omap2_control_base_init();
573 omap3xxx_check_revision();
574 am33xx_check_features();
575 omap2_prcm_base_init();
576 am43xx_powerdomains_init();
577 am43xx_clockdomains_init();
578 omap_l2_cache_init();
579 omap_clk_soc_init
= am43xx_dt_clk_init
;
583 void __init
am43xx_init_late(void)
585 omap_pm_soc_init
= amx3_common_pm_init
;
589 #ifdef CONFIG_ARCH_OMAP4
590 void __init
omap4430_init_early(void)
592 omap2_set_globals_tap(OMAP443X_CLASS
,
593 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
));
594 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE
));
595 omap2_control_base_init();
596 omap4xxx_check_revision();
597 omap4xxx_check_features();
598 omap2_prcm_base_init();
599 omap4_sar_ram_init();
600 omap4_mpuss_early_init();
601 omap4_pm_init_early();
602 omap44xx_voltagedomains_init();
603 omap44xx_powerdomains_init();
604 omap44xx_clockdomains_init();
605 omap_l2_cache_init();
606 omap_clk_soc_init
= omap4xxx_dt_clk_init
;
610 void __init
omap4430_init_late(void)
612 omap_pm_soc_init
= omap4_pm_init
;
616 #ifdef CONFIG_SOC_OMAP5
617 void __init
omap5_init_early(void)
619 omap2_set_globals_tap(OMAP54XX_CLASS
,
620 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
));
621 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
622 omap2_control_base_init();
623 omap2_prcm_base_init();
624 omap5xxx_check_revision();
625 omap4_sar_ram_init();
626 omap4_mpuss_early_init();
627 omap4_pm_init_early();
628 omap54xx_voltagedomains_init();
629 omap54xx_powerdomains_init();
630 omap54xx_clockdomains_init();
631 omap_clk_soc_init
= omap5xxx_dt_clk_init
;
635 void __init
omap5_init_late(void)
637 omap_pm_soc_init
= omap4_pm_init
;
641 #ifdef CONFIG_SOC_DRA7XX
642 void __init
dra7xx_init_early(void)
644 omap2_set_globals_tap(DRA7XX_CLASS
,
645 OMAP2_L4_IO_ADDRESS(DRA7XX_TAP_BASE
));
646 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
647 omap2_control_base_init();
648 omap4_pm_init_early();
649 omap2_prcm_base_init();
650 dra7xxx_check_revision();
651 dra7xx_powerdomains_init();
652 dra7xx_clockdomains_init();
653 omap_clk_soc_init
= dra7xx_dt_clk_init
;
657 void __init
dra7xx_init_late(void)
659 omap_pm_soc_init
= omap4_pm_init
;
664 void __init
omap_sdrc_init(struct omap_sdrc_params
*sdrc_cs0
,
665 struct omap_sdrc_params
*sdrc_cs1
)
669 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
670 omap2_sdrc_init(sdrc_cs0
, sdrc_cs1
);
671 _omap2_init_reprogram_sdrc();
675 int __init
omap_clk_init(void)
679 if (!omap_clk_soc_init
)
682 ti_clk_init_features();
684 omap2_clk_setup_ll_ops();
686 ret
= omap_control_init();
690 ret
= omap_prcm_init();
696 ti_dt_clk_init_retry_clks();
698 ti_dt_clockdomains_setup();
700 ret
= omap_clk_soc_init();