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"
58 * omap_clk_init: points to a function that does the SoC-specific
59 * clock initializations
61 int (*omap_clk_init
)(void);
64 * The machine specific code may provide the extra mapping besides the
65 * default mapping provided here.
68 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
69 static struct map_desc omap24xx_io_desc
[] __initdata
= {
71 .virtual = L3_24XX_VIRT
,
72 .pfn
= __phys_to_pfn(L3_24XX_PHYS
),
73 .length
= L3_24XX_SIZE
,
77 .virtual = L4_24XX_VIRT
,
78 .pfn
= __phys_to_pfn(L4_24XX_PHYS
),
79 .length
= L4_24XX_SIZE
,
84 #ifdef CONFIG_SOC_OMAP2420
85 static struct map_desc omap242x_io_desc
[] __initdata
= {
87 .virtual = DSP_MEM_2420_VIRT
,
88 .pfn
= __phys_to_pfn(DSP_MEM_2420_PHYS
),
89 .length
= DSP_MEM_2420_SIZE
,
93 .virtual = DSP_IPI_2420_VIRT
,
94 .pfn
= __phys_to_pfn(DSP_IPI_2420_PHYS
),
95 .length
= DSP_IPI_2420_SIZE
,
99 .virtual = DSP_MMU_2420_VIRT
,
100 .pfn
= __phys_to_pfn(DSP_MMU_2420_PHYS
),
101 .length
= DSP_MMU_2420_SIZE
,
108 #ifdef CONFIG_SOC_OMAP2430
109 static struct map_desc omap243x_io_desc
[] __initdata
= {
111 .virtual = L4_WK_243X_VIRT
,
112 .pfn
= __phys_to_pfn(L4_WK_243X_PHYS
),
113 .length
= L4_WK_243X_SIZE
,
117 .virtual = OMAP243X_GPMC_VIRT
,
118 .pfn
= __phys_to_pfn(OMAP243X_GPMC_PHYS
),
119 .length
= OMAP243X_GPMC_SIZE
,
123 .virtual = OMAP243X_SDRC_VIRT
,
124 .pfn
= __phys_to_pfn(OMAP243X_SDRC_PHYS
),
125 .length
= OMAP243X_SDRC_SIZE
,
129 .virtual = OMAP243X_SMS_VIRT
,
130 .pfn
= __phys_to_pfn(OMAP243X_SMS_PHYS
),
131 .length
= OMAP243X_SMS_SIZE
,
138 #ifdef CONFIG_ARCH_OMAP3
139 static struct map_desc omap34xx_io_desc
[] __initdata
= {
141 .virtual = L3_34XX_VIRT
,
142 .pfn
= __phys_to_pfn(L3_34XX_PHYS
),
143 .length
= L3_34XX_SIZE
,
147 .virtual = L4_34XX_VIRT
,
148 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
149 .length
= L4_34XX_SIZE
,
153 .virtual = OMAP34XX_GPMC_VIRT
,
154 .pfn
= __phys_to_pfn(OMAP34XX_GPMC_PHYS
),
155 .length
= OMAP34XX_GPMC_SIZE
,
159 .virtual = OMAP343X_SMS_VIRT
,
160 .pfn
= __phys_to_pfn(OMAP343X_SMS_PHYS
),
161 .length
= OMAP343X_SMS_SIZE
,
165 .virtual = OMAP343X_SDRC_VIRT
,
166 .pfn
= __phys_to_pfn(OMAP343X_SDRC_PHYS
),
167 .length
= OMAP343X_SDRC_SIZE
,
171 .virtual = L4_PER_34XX_VIRT
,
172 .pfn
= __phys_to_pfn(L4_PER_34XX_PHYS
),
173 .length
= L4_PER_34XX_SIZE
,
177 .virtual = L4_EMU_34XX_VIRT
,
178 .pfn
= __phys_to_pfn(L4_EMU_34XX_PHYS
),
179 .length
= L4_EMU_34XX_SIZE
,
182 #if defined(CONFIG_DEBUG_LL) && \
183 (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
185 .virtual = ZOOM_UART_VIRT
,
186 .pfn
= __phys_to_pfn(ZOOM_UART_BASE
),
194 #ifdef CONFIG_SOC_TI81XX
195 static struct map_desc omapti81xx_io_desc
[] __initdata
= {
197 .virtual = L4_34XX_VIRT
,
198 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
199 .length
= L4_34XX_SIZE
,
205 #ifdef CONFIG_SOC_AM33XX
206 static struct map_desc omapam33xx_io_desc
[] __initdata
= {
208 .virtual = L4_34XX_VIRT
,
209 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
210 .length
= L4_34XX_SIZE
,
214 .virtual = L4_WK_AM33XX_VIRT
,
215 .pfn
= __phys_to_pfn(L4_WK_AM33XX_PHYS
),
216 .length
= L4_WK_AM33XX_SIZE
,
222 #ifdef CONFIG_ARCH_OMAP4
223 static struct map_desc omap44xx_io_desc
[] __initdata
= {
225 .virtual = L3_44XX_VIRT
,
226 .pfn
= __phys_to_pfn(L3_44XX_PHYS
),
227 .length
= L3_44XX_SIZE
,
231 .virtual = L4_44XX_VIRT
,
232 .pfn
= __phys_to_pfn(L4_44XX_PHYS
),
233 .length
= L4_44XX_SIZE
,
237 .virtual = L4_PER_44XX_VIRT
,
238 .pfn
= __phys_to_pfn(L4_PER_44XX_PHYS
),
239 .length
= L4_PER_44XX_SIZE
,
242 #ifdef CONFIG_OMAP4_ERRATA_I688
244 .virtual = OMAP4_SRAM_VA
,
245 .pfn
= __phys_to_pfn(OMAP4_SRAM_PA
),
247 .type
= MT_MEMORY_SO
,
254 #ifdef CONFIG_SOC_OMAP5
255 static struct map_desc omap54xx_io_desc
[] __initdata
= {
257 .virtual = L3_54XX_VIRT
,
258 .pfn
= __phys_to_pfn(L3_54XX_PHYS
),
259 .length
= L3_54XX_SIZE
,
263 .virtual = L4_54XX_VIRT
,
264 .pfn
= __phys_to_pfn(L4_54XX_PHYS
),
265 .length
= L4_54XX_SIZE
,
269 .virtual = L4_WK_54XX_VIRT
,
270 .pfn
= __phys_to_pfn(L4_WK_54XX_PHYS
),
271 .length
= L4_WK_54XX_SIZE
,
275 .virtual = L4_PER_54XX_VIRT
,
276 .pfn
= __phys_to_pfn(L4_PER_54XX_PHYS
),
277 .length
= L4_PER_54XX_SIZE
,
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 #ifdef CONFIG_SOC_AM33XX
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 #ifdef CONFIG_SOC_OMAP5
329 void __init
omap5_map_io(void)
331 iotable_init(omap54xx_io_desc
, ARRAY_SIZE(omap54xx_io_desc
));
335 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
337 * Sets the CORE DPLL3 M2 divider to the same value that it's at
338 * currently. This has the effect of setting the SDRC SDRAM AC timing
339 * registers to the values currently defined by the kernel. Currently
340 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
341 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
342 * or passes along the return value of clk_set_rate().
344 static int __init
_omap2_init_reprogram_sdrc(void)
346 struct clk
*dpll3_m2_ck
;
350 if (!cpu_is_omap34xx())
353 dpll3_m2_ck
= clk_get(NULL
, "dpll3_m2_ck");
354 if (IS_ERR(dpll3_m2_ck
))
357 rate
= clk_get_rate(dpll3_m2_ck
);
358 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate
);
359 v
= clk_set_rate(dpll3_m2_ck
, rate
);
361 pr_err("dpll3_m2_clk rate change failed: %d\n", v
);
363 clk_put(dpll3_m2_ck
);
368 static int _set_hwmod_postsetup_state(struct omap_hwmod
*oh
, void *data
)
370 return omap_hwmod_set_postsetup_state(oh
, *(u8
*)data
);
373 static void __init
omap_hwmod_init_postsetup(void)
377 /* Set the default postsetup state for all hwmods */
378 #ifdef CONFIG_PM_RUNTIME
379 postsetup_state
= _HWMOD_STATE_IDLE
;
381 postsetup_state
= _HWMOD_STATE_ENABLED
;
383 omap_hwmod_for_each(_set_hwmod_postsetup_state
, &postsetup_state
);
385 omap_pm_if_early_init();
388 #ifdef CONFIG_SOC_OMAP2420
389 void __init
omap2420_init_early(void)
391 omap2_set_globals_tap(OMAP242X_CLASS
, OMAP2_L4_IO_ADDRESS(0x48014000));
392 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE
),
393 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE
));
394 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE
),
396 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE
));
397 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE
), NULL
);
398 omap2xxx_check_revision();
401 omap2xxx_voltagedomains_init();
402 omap242x_powerdomains_init();
403 omap242x_clockdomains_init();
404 omap2420_hwmod_init();
405 omap_hwmod_init_postsetup();
406 omap_clk_init
= omap2420_clk_init
;
409 void __init
omap2420_init_late(void)
411 omap_mux_late_init();
412 omap2_common_pm_late_init();
414 omap2_clk_enable_autoidle_all();
418 #ifdef CONFIG_SOC_OMAP2430
419 void __init
omap2430_init_early(void)
421 omap2_set_globals_tap(OMAP243X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4900a000));
422 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE
),
423 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE
));
424 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE
),
426 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE
));
427 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE
), NULL
);
428 omap2xxx_check_revision();
431 omap2xxx_voltagedomains_init();
432 omap243x_powerdomains_init();
433 omap243x_clockdomains_init();
434 omap2430_hwmod_init();
435 omap_hwmod_init_postsetup();
436 omap_clk_init
= omap2430_clk_init
;
439 void __init
omap2430_init_late(void)
441 omap_mux_late_init();
442 omap2_common_pm_late_init();
444 omap2_clk_enable_autoidle_all();
449 * Currently only board-omap3beagle.c should call this because of the
450 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
452 #ifdef CONFIG_ARCH_OMAP3
453 void __init
omap3_init_early(void)
455 omap2_set_globals_tap(OMAP343X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4830A000));
456 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE
),
457 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE
));
458 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE
),
460 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE
));
461 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE
), NULL
);
462 omap3xxx_check_revision();
463 omap3xxx_check_features();
466 omap3xxx_voltagedomains_init();
467 omap3xxx_powerdomains_init();
468 omap3xxx_clockdomains_init();
469 omap3xxx_hwmod_init();
470 omap_hwmod_init_postsetup();
471 omap_clk_init
= omap3xxx_clk_init
;
474 void __init
omap3430_init_early(void)
479 void __init
omap35xx_init_early(void)
484 void __init
omap3630_init_early(void)
489 void __init
am35xx_init_early(void)
494 void __init
ti81xx_init_early(void)
496 omap2_set_globals_tap(OMAP343X_CLASS
,
497 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
498 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE
),
500 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE
));
501 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE
), NULL
);
502 omap3xxx_check_revision();
503 ti81xx_check_features();
504 omap3xxx_voltagedomains_init();
505 omap3xxx_powerdomains_init();
506 omap3xxx_clockdomains_init();
507 omap3xxx_hwmod_init();
508 omap_hwmod_init_postsetup();
509 omap_clk_init
= omap3xxx_clk_init
;
512 void __init
omap3_init_late(void)
514 omap_mux_late_init();
515 omap2_common_pm_late_init();
517 omap2_clk_enable_autoidle_all();
520 void __init
omap3430_init_late(void)
522 omap_mux_late_init();
523 omap2_common_pm_late_init();
525 omap2_clk_enable_autoidle_all();
528 void __init
omap35xx_init_late(void)
530 omap_mux_late_init();
531 omap2_common_pm_late_init();
533 omap2_clk_enable_autoidle_all();
536 void __init
omap3630_init_late(void)
538 omap_mux_late_init();
539 omap2_common_pm_late_init();
541 omap2_clk_enable_autoidle_all();
544 void __init
am35xx_init_late(void)
546 omap_mux_late_init();
547 omap2_common_pm_late_init();
549 omap2_clk_enable_autoidle_all();
552 void __init
ti81xx_init_late(void)
554 omap_mux_late_init();
555 omap2_common_pm_late_init();
557 omap2_clk_enable_autoidle_all();
561 #ifdef CONFIG_SOC_AM33XX
562 void __init
am33xx_init_early(void)
564 omap2_set_globals_tap(AM335X_CLASS
,
565 AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE
));
566 omap2_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE
),
568 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE
));
569 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE
), NULL
);
570 omap3xxx_check_revision();
571 ti81xx_check_features();
572 am33xx_voltagedomains_init();
573 am33xx_powerdomains_init();
574 am33xx_clockdomains_init();
576 omap_hwmod_init_postsetup();
577 omap_clk_init
= am33xx_clk_init
;
581 #ifdef CONFIG_ARCH_OMAP4
582 void __init
omap4430_init_early(void)
584 omap2_set_globals_tap(OMAP443X_CLASS
,
585 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
));
586 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
),
587 OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE
));
588 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE
));
589 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE
),
590 OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE
));
591 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE
));
592 omap_prm_base_init();
594 omap4xxx_check_revision();
595 omap4xxx_check_features();
597 omap44xx_voltagedomains_init();
598 omap44xx_powerdomains_init();
599 omap44xx_clockdomains_init();
600 omap44xx_hwmod_init();
601 omap_hwmod_init_postsetup();
602 omap_clk_init
= omap4xxx_clk_init
;
605 void __init
omap4430_init_late(void)
607 omap_mux_late_init();
608 omap2_common_pm_late_init();
610 omap2_clk_enable_autoidle_all();
614 #ifdef CONFIG_SOC_OMAP5
615 void __init
omap5_init_early(void)
617 omap2_set_globals_tap(OMAP54XX_CLASS
,
618 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
));
619 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
),
620 OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE
));
621 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE
));
622 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE
),
623 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE
));
624 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
625 omap_prm_base_init();
627 omap5xxx_check_revision();
631 void __init
omap_sdrc_init(struct omap_sdrc_params
*sdrc_cs0
,
632 struct omap_sdrc_params
*sdrc_cs1
)
636 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
637 omap2_sdrc_init(sdrc_cs0
, sdrc_cs1
);
638 _omap2_init_reprogram_sdrc();