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 * The machine specific code may provide the extra mapping besides the
59 * default mapping provided here.
62 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
63 static struct map_desc omap24xx_io_desc
[] __initdata
= {
65 .virtual = L3_24XX_VIRT
,
66 .pfn
= __phys_to_pfn(L3_24XX_PHYS
),
67 .length
= L3_24XX_SIZE
,
71 .virtual = L4_24XX_VIRT
,
72 .pfn
= __phys_to_pfn(L4_24XX_PHYS
),
73 .length
= L4_24XX_SIZE
,
78 #ifdef CONFIG_SOC_OMAP2420
79 static struct map_desc omap242x_io_desc
[] __initdata
= {
81 .virtual = DSP_MEM_2420_VIRT
,
82 .pfn
= __phys_to_pfn(DSP_MEM_2420_PHYS
),
83 .length
= DSP_MEM_2420_SIZE
,
87 .virtual = DSP_IPI_2420_VIRT
,
88 .pfn
= __phys_to_pfn(DSP_IPI_2420_PHYS
),
89 .length
= DSP_IPI_2420_SIZE
,
93 .virtual = DSP_MMU_2420_VIRT
,
94 .pfn
= __phys_to_pfn(DSP_MMU_2420_PHYS
),
95 .length
= DSP_MMU_2420_SIZE
,
102 #ifdef CONFIG_SOC_OMAP2430
103 static struct map_desc omap243x_io_desc
[] __initdata
= {
105 .virtual = L4_WK_243X_VIRT
,
106 .pfn
= __phys_to_pfn(L4_WK_243X_PHYS
),
107 .length
= L4_WK_243X_SIZE
,
111 .virtual = OMAP243X_GPMC_VIRT
,
112 .pfn
= __phys_to_pfn(OMAP243X_GPMC_PHYS
),
113 .length
= OMAP243X_GPMC_SIZE
,
117 .virtual = OMAP243X_SDRC_VIRT
,
118 .pfn
= __phys_to_pfn(OMAP243X_SDRC_PHYS
),
119 .length
= OMAP243X_SDRC_SIZE
,
123 .virtual = OMAP243X_SMS_VIRT
,
124 .pfn
= __phys_to_pfn(OMAP243X_SMS_PHYS
),
125 .length
= OMAP243X_SMS_SIZE
,
132 #ifdef CONFIG_ARCH_OMAP3
133 static struct map_desc omap34xx_io_desc
[] __initdata
= {
135 .virtual = L3_34XX_VIRT
,
136 .pfn
= __phys_to_pfn(L3_34XX_PHYS
),
137 .length
= L3_34XX_SIZE
,
141 .virtual = L4_34XX_VIRT
,
142 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
143 .length
= L4_34XX_SIZE
,
147 .virtual = OMAP34XX_GPMC_VIRT
,
148 .pfn
= __phys_to_pfn(OMAP34XX_GPMC_PHYS
),
149 .length
= OMAP34XX_GPMC_SIZE
,
153 .virtual = OMAP343X_SMS_VIRT
,
154 .pfn
= __phys_to_pfn(OMAP343X_SMS_PHYS
),
155 .length
= OMAP343X_SMS_SIZE
,
159 .virtual = OMAP343X_SDRC_VIRT
,
160 .pfn
= __phys_to_pfn(OMAP343X_SDRC_PHYS
),
161 .length
= OMAP343X_SDRC_SIZE
,
165 .virtual = L4_PER_34XX_VIRT
,
166 .pfn
= __phys_to_pfn(L4_PER_34XX_PHYS
),
167 .length
= L4_PER_34XX_SIZE
,
171 .virtual = L4_EMU_34XX_VIRT
,
172 .pfn
= __phys_to_pfn(L4_EMU_34XX_PHYS
),
173 .length
= L4_EMU_34XX_SIZE
,
176 #if defined(CONFIG_DEBUG_LL) && \
177 (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
179 .virtual = ZOOM_UART_VIRT
,
180 .pfn
= __phys_to_pfn(ZOOM_UART_BASE
),
188 #ifdef CONFIG_SOC_TI81XX
189 static struct map_desc omapti81xx_io_desc
[] __initdata
= {
191 .virtual = L4_34XX_VIRT
,
192 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
193 .length
= L4_34XX_SIZE
,
199 #ifdef CONFIG_SOC_AM33XX
200 static struct map_desc omapam33xx_io_desc
[] __initdata
= {
202 .virtual = L4_34XX_VIRT
,
203 .pfn
= __phys_to_pfn(L4_34XX_PHYS
),
204 .length
= L4_34XX_SIZE
,
208 .virtual = L4_WK_AM33XX_VIRT
,
209 .pfn
= __phys_to_pfn(L4_WK_AM33XX_PHYS
),
210 .length
= L4_WK_AM33XX_SIZE
,
216 #ifdef CONFIG_ARCH_OMAP4
217 static struct map_desc omap44xx_io_desc
[] __initdata
= {
219 .virtual = L3_44XX_VIRT
,
220 .pfn
= __phys_to_pfn(L3_44XX_PHYS
),
221 .length
= L3_44XX_SIZE
,
225 .virtual = L4_44XX_VIRT
,
226 .pfn
= __phys_to_pfn(L4_44XX_PHYS
),
227 .length
= L4_44XX_SIZE
,
231 .virtual = L4_PER_44XX_VIRT
,
232 .pfn
= __phys_to_pfn(L4_PER_44XX_PHYS
),
233 .length
= L4_PER_44XX_SIZE
,
236 #ifdef CONFIG_OMAP4_ERRATA_I688
238 .virtual = OMAP4_SRAM_VA
,
239 .pfn
= __phys_to_pfn(OMAP4_SRAM_PA
),
241 .type
= MT_MEMORY_SO
,
248 #ifdef CONFIG_SOC_OMAP5
249 static struct map_desc omap54xx_io_desc
[] __initdata
= {
251 .virtual = L3_54XX_VIRT
,
252 .pfn
= __phys_to_pfn(L3_54XX_PHYS
),
253 .length
= L3_54XX_SIZE
,
257 .virtual = L4_54XX_VIRT
,
258 .pfn
= __phys_to_pfn(L4_54XX_PHYS
),
259 .length
= L4_54XX_SIZE
,
263 .virtual = L4_WK_54XX_VIRT
,
264 .pfn
= __phys_to_pfn(L4_WK_54XX_PHYS
),
265 .length
= L4_WK_54XX_SIZE
,
269 .virtual = L4_PER_54XX_VIRT
,
270 .pfn
= __phys_to_pfn(L4_PER_54XX_PHYS
),
271 .length
= L4_PER_54XX_SIZE
,
277 #ifdef CONFIG_SOC_OMAP2420
278 void __init
omap242x_map_io(void)
280 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
281 iotable_init(omap242x_io_desc
, ARRAY_SIZE(omap242x_io_desc
));
285 #ifdef CONFIG_SOC_OMAP2430
286 void __init
omap243x_map_io(void)
288 iotable_init(omap24xx_io_desc
, ARRAY_SIZE(omap24xx_io_desc
));
289 iotable_init(omap243x_io_desc
, ARRAY_SIZE(omap243x_io_desc
));
293 #ifdef CONFIG_ARCH_OMAP3
294 void __init
omap3_map_io(void)
296 iotable_init(omap34xx_io_desc
, ARRAY_SIZE(omap34xx_io_desc
));
300 #ifdef CONFIG_SOC_TI81XX
301 void __init
ti81xx_map_io(void)
303 iotable_init(omapti81xx_io_desc
, ARRAY_SIZE(omapti81xx_io_desc
));
307 #ifdef CONFIG_SOC_AM33XX
308 void __init
am33xx_map_io(void)
310 iotable_init(omapam33xx_io_desc
, ARRAY_SIZE(omapam33xx_io_desc
));
314 #ifdef CONFIG_ARCH_OMAP4
315 void __init
omap4_map_io(void)
317 iotable_init(omap44xx_io_desc
, ARRAY_SIZE(omap44xx_io_desc
));
318 omap_barriers_init();
322 #ifdef CONFIG_SOC_OMAP5
323 void __init
omap5_map_io(void)
325 iotable_init(omap54xx_io_desc
, ARRAY_SIZE(omap54xx_io_desc
));
329 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
331 * Sets the CORE DPLL3 M2 divider to the same value that it's at
332 * currently. This has the effect of setting the SDRC SDRAM AC timing
333 * registers to the values currently defined by the kernel. Currently
334 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
335 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
336 * or passes along the return value of clk_set_rate().
338 static int __init
_omap2_init_reprogram_sdrc(void)
340 struct clk
*dpll3_m2_ck
;
344 if (!cpu_is_omap34xx())
347 dpll3_m2_ck
= clk_get(NULL
, "dpll3_m2_ck");
348 if (IS_ERR(dpll3_m2_ck
))
351 rate
= clk_get_rate(dpll3_m2_ck
);
352 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate
);
353 v
= clk_set_rate(dpll3_m2_ck
, rate
);
355 pr_err("dpll3_m2_clk rate change failed: %d\n", v
);
357 clk_put(dpll3_m2_ck
);
362 static int _set_hwmod_postsetup_state(struct omap_hwmod
*oh
, void *data
)
364 return omap_hwmod_set_postsetup_state(oh
, *(u8
*)data
);
367 static void __init
omap_hwmod_init_postsetup(void)
371 /* Set the default postsetup state for all hwmods */
372 #ifdef CONFIG_PM_RUNTIME
373 postsetup_state
= _HWMOD_STATE_IDLE
;
375 postsetup_state
= _HWMOD_STATE_ENABLED
;
377 omap_hwmod_for_each(_set_hwmod_postsetup_state
, &postsetup_state
);
379 omap_pm_if_early_init();
382 #ifdef CONFIG_SOC_OMAP2420
383 void __init
omap2420_init_early(void)
385 omap2_set_globals_tap(OMAP242X_CLASS
, OMAP2_L4_IO_ADDRESS(0x48014000));
386 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE
),
387 OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE
));
388 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE
),
390 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE
));
391 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE
), NULL
);
392 omap2xxx_check_revision();
395 omap2xxx_voltagedomains_init();
396 omap242x_powerdomains_init();
397 omap242x_clockdomains_init();
398 omap2420_hwmod_init();
399 omap_hwmod_init_postsetup();
403 void __init
omap2420_init_late(void)
405 omap_mux_late_init();
406 omap2_common_pm_late_init();
408 omap2_clk_enable_autoidle_all();
412 #ifdef CONFIG_SOC_OMAP2430
413 void __init
omap2430_init_early(void)
415 omap2_set_globals_tap(OMAP243X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4900a000));
416 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE
),
417 OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE
));
418 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE
),
420 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE
));
421 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE
), NULL
);
422 omap2xxx_check_revision();
425 omap2xxx_voltagedomains_init();
426 omap243x_powerdomains_init();
427 omap243x_clockdomains_init();
428 omap2430_hwmod_init();
429 omap_hwmod_init_postsetup();
433 void __init
omap2430_init_late(void)
435 omap_mux_late_init();
436 omap2_common_pm_late_init();
438 omap2_clk_enable_autoidle_all();
443 * Currently only board-omap3beagle.c should call this because of the
444 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
446 #ifdef CONFIG_ARCH_OMAP3
447 void __init
omap3_init_early(void)
449 omap2_set_globals_tap(OMAP343X_CLASS
, OMAP2_L4_IO_ADDRESS(0x4830A000));
450 omap2_set_globals_sdrc(OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE
),
451 OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE
));
452 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE
),
454 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE
));
455 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE
), NULL
);
456 omap3xxx_check_revision();
457 omap3xxx_check_features();
460 omap3xxx_voltagedomains_init();
461 omap3xxx_powerdomains_init();
462 omap3xxx_clockdomains_init();
463 omap3xxx_hwmod_init();
464 omap_hwmod_init_postsetup();
468 void __init
omap3430_init_early(void)
473 void __init
omap35xx_init_early(void)
478 void __init
omap3630_init_early(void)
483 void __init
am35xx_init_early(void)
488 void __init
ti81xx_init_early(void)
490 omap2_set_globals_tap(OMAP343X_CLASS
,
491 OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE
));
492 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE
),
494 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE
));
495 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE
), NULL
);
496 omap3xxx_check_revision();
497 ti81xx_check_features();
498 omap3xxx_voltagedomains_init();
499 omap3xxx_powerdomains_init();
500 omap3xxx_clockdomains_init();
501 omap3xxx_hwmod_init();
502 omap_hwmod_init_postsetup();
506 void __init
omap3_init_late(void)
508 omap_mux_late_init();
509 omap2_common_pm_late_init();
511 omap2_clk_enable_autoidle_all();
514 void __init
omap3430_init_late(void)
516 omap_mux_late_init();
517 omap2_common_pm_late_init();
519 omap2_clk_enable_autoidle_all();
522 void __init
omap35xx_init_late(void)
524 omap_mux_late_init();
525 omap2_common_pm_late_init();
527 omap2_clk_enable_autoidle_all();
530 void __init
omap3630_init_late(void)
532 omap_mux_late_init();
533 omap2_common_pm_late_init();
535 omap2_clk_enable_autoidle_all();
538 void __init
am35xx_init_late(void)
540 omap_mux_late_init();
541 omap2_common_pm_late_init();
543 omap2_clk_enable_autoidle_all();
546 void __init
ti81xx_init_late(void)
548 omap_mux_late_init();
549 omap2_common_pm_late_init();
551 omap2_clk_enable_autoidle_all();
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_set_globals_control(AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE
),
562 omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE
));
563 omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE
), NULL
);
564 omap3xxx_check_revision();
565 ti81xx_check_features();
566 am33xx_voltagedomains_init();
567 am33xx_powerdomains_init();
568 am33xx_clockdomains_init();
570 omap_hwmod_init_postsetup();
575 #ifdef CONFIG_ARCH_OMAP4
576 void __init
omap4430_init_early(void)
578 omap2_set_globals_tap(OMAP443X_CLASS
,
579 OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
));
580 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE
),
581 OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE
));
582 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE
));
583 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE
),
584 OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE
));
585 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE
));
586 omap_prm_base_init();
588 omap4xxx_check_revision();
589 omap4xxx_check_features();
591 omap44xx_voltagedomains_init();
592 omap44xx_powerdomains_init();
593 omap44xx_clockdomains_init();
594 omap44xx_hwmod_init();
595 omap_hwmod_init_postsetup();
599 void __init
omap4430_init_late(void)
601 omap_mux_late_init();
602 omap2_common_pm_late_init();
604 omap2_clk_enable_autoidle_all();
608 #ifdef CONFIG_SOC_OMAP5
609 void __init
omap5_init_early(void)
611 omap2_set_globals_tap(OMAP54XX_CLASS
,
612 OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
));
613 omap2_set_globals_control(OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE
),
614 OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE
));
615 omap2_set_globals_prm(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE
));
616 omap2_set_globals_cm(OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE
),
617 OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE
));
618 omap2_set_globals_prcm_mpu(OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE
));
619 omap_prm_base_init();
621 omap5xxx_check_revision();
625 void __init
omap_sdrc_init(struct omap_sdrc_params
*sdrc_cs0
,
626 struct omap_sdrc_params
*sdrc_cs1
)
630 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
631 omap2_sdrc_init(sdrc_cs0
, sdrc_cs1
);
632 _omap2_init_reprogram_sdrc();