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 <plat-omap/dma-omap.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"
47 * The machine specific code may provide the extra mapping besides the
48 * default mapping provided here.
51 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
52 static struct map_desc omap24xx_io_desc[] __initdata = {
54 .virtual = L3_24XX_VIRT,
55 .pfn = __phys_to_pfn(L3_24XX_PHYS),
56 .length = L3_24XX_SIZE,
60 .virtual = L4_24XX_VIRT,
61 .pfn = __phys_to_pfn(L4_24XX_PHYS),
62 .length = L4_24XX_SIZE,
67 #ifdef CONFIG_SOC_OMAP2420
68 static struct map_desc omap242x_io_desc[] __initdata = {
70 .virtual = DSP_MEM_2420_VIRT,
71 .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS),
72 .length = DSP_MEM_2420_SIZE,
76 .virtual = DSP_IPI_2420_VIRT,
77 .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS),
78 .length = DSP_IPI_2420_SIZE,
82 .virtual = DSP_MMU_2420_VIRT,
83 .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS),
84 .length = DSP_MMU_2420_SIZE,
91 #ifdef CONFIG_SOC_OMAP2430
92 static struct map_desc omap243x_io_desc[] __initdata = {
94 .virtual = L4_WK_243X_VIRT,
95 .pfn = __phys_to_pfn(L4_WK_243X_PHYS),
96 .length = L4_WK_243X_SIZE,
100 .virtual = OMAP243X_GPMC_VIRT,
101 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS),
102 .length = OMAP243X_GPMC_SIZE,
106 .virtual = OMAP243X_SDRC_VIRT,
107 .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS),
108 .length = OMAP243X_SDRC_SIZE,
112 .virtual = OMAP243X_SMS_VIRT,
113 .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS),
114 .length = OMAP243X_SMS_SIZE,
121 #ifdef CONFIG_ARCH_OMAP3
122 static struct map_desc omap34xx_io_desc[] __initdata = {
124 .virtual = L3_34XX_VIRT,
125 .pfn = __phys_to_pfn(L3_34XX_PHYS),
126 .length = L3_34XX_SIZE,
130 .virtual = L4_34XX_VIRT,
131 .pfn = __phys_to_pfn(L4_34XX_PHYS),
132 .length = L4_34XX_SIZE,
136 .virtual = OMAP34XX_GPMC_VIRT,
137 .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
138 .length = OMAP34XX_GPMC_SIZE,
142 .virtual = OMAP343X_SMS_VIRT,
143 .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS),
144 .length = OMAP343X_SMS_SIZE,
148 .virtual = OMAP343X_SDRC_VIRT,
149 .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS),
150 .length = OMAP343X_SDRC_SIZE,
154 .virtual = L4_PER_34XX_VIRT,
155 .pfn = __phys_to_pfn(L4_PER_34XX_PHYS),
156 .length = L4_PER_34XX_SIZE,
160 .virtual = L4_EMU_34XX_VIRT,
161 .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS),
162 .length = L4_EMU_34XX_SIZE,
165 #if defined(CONFIG_DEBUG_LL) && \
166 (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
168 .virtual = ZOOM_UART_VIRT,
169 .pfn = __phys_to_pfn(ZOOM_UART_BASE),
177 #ifdef CONFIG_SOC_TI81XX
178 static struct map_desc omapti81xx_io_desc[] __initdata = {
180 .virtual = L4_34XX_VIRT,
181 .pfn = __phys_to_pfn(L4_34XX_PHYS),
182 .length = L4_34XX_SIZE,
188 #ifdef CONFIG_SOC_AM33XX
189 static struct map_desc omapam33xx_io_desc[] __initdata = {
191 .virtual = L4_34XX_VIRT,
192 .pfn = __phys_to_pfn(L4_34XX_PHYS),
193 .length = L4_34XX_SIZE,
197 .virtual = L4_WK_AM33XX_VIRT,
198 .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS),
199 .length = L4_WK_AM33XX_SIZE,
205 #ifdef CONFIG_ARCH_OMAP4
206 static struct map_desc omap44xx_io_desc[] __initdata = {
208 .virtual = L3_44XX_VIRT,
209 .pfn = __phys_to_pfn(L3_44XX_PHYS),
210 .length = L3_44XX_SIZE,
214 .virtual = L4_44XX_VIRT,
215 .pfn = __phys_to_pfn(L4_44XX_PHYS),
216 .length = L4_44XX_SIZE,
220 .virtual = L4_PER_44XX_VIRT,
221 .pfn = __phys_to_pfn(L4_PER_44XX_PHYS),
222 .length = L4_PER_44XX_SIZE,
225 #ifdef CONFIG_OMAP4_ERRATA_I688
227 .virtual = OMAP4_SRAM_VA,
228 .pfn = __phys_to_pfn(OMAP4_SRAM_PA),
230 .type = MT_MEMORY_SO,
237 #ifdef CONFIG_SOC_OMAP5
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_common_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_common_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 omap34xx_map_common_io(void)
285 iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
289 #ifdef CONFIG_SOC_TI81XX
290 void __init omapti81xx_map_common_io(void)
292 iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
296 #ifdef CONFIG_SOC_AM33XX
297 void __init omapam33xx_map_common_io(void)
299 iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
303 #ifdef CONFIG_ARCH_OMAP4
304 void __init omap44xx_map_common_io(void)
306 iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
307 omap_barriers_init();
311 #ifdef CONFIG_SOC_OMAP5
312 void __init omap5_map_common_io(void)
314 iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
318 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
320 * Sets the CORE DPLL3 M2 divider to the same value that it's at
321 * currently. This has the effect of setting the SDRC SDRAM AC timing
322 * registers to the values currently defined by the kernel. Currently
323 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
324 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
325 * or passes along the return value of clk_set_rate().
327 static int __init _omap2_init_reprogram_sdrc(void)
329 struct clk *dpll3_m2_ck;
333 if (!cpu_is_omap34xx())
336 dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
337 if (IS_ERR(dpll3_m2_ck))
340 rate = clk_get_rate(dpll3_m2_ck);
341 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
342 v = clk_set_rate(dpll3_m2_ck, rate);
344 pr_err("dpll3_m2_clk rate change failed: %d\n", v);
346 clk_put(dpll3_m2_ck);
351 static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
353 return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
356 static void __init omap_hwmod_init_postsetup(void)
360 /* Set the default postsetup state for all hwmods */
361 #ifdef CONFIG_PM_RUNTIME
362 postsetup_state = _HWMOD_STATE_IDLE;
364 postsetup_state = _HWMOD_STATE_ENABLED;
366 omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
368 omap_pm_if_early_init();
371 #ifdef CONFIG_SOC_OMAP2420
372 void __init omap2420_init_early(void)
374 omap2_set_globals_242x();
375 omap2xxx_check_revision();
376 omap2xxx_voltagedomains_init();
377 omap242x_powerdomains_init();
378 omap242x_clockdomains_init();
379 omap2420_hwmod_init();
380 omap_hwmod_init_postsetup();
384 void __init omap2420_init_late(void)
386 omap_mux_late_init();
387 omap2_common_pm_late_init();
392 #ifdef CONFIG_SOC_OMAP2430
393 void __init omap2430_init_early(void)
395 omap2_set_globals_243x();
396 omap2xxx_check_revision();
397 omap2xxx_voltagedomains_init();
398 omap243x_powerdomains_init();
399 omap243x_clockdomains_init();
400 omap2430_hwmod_init();
401 omap_hwmod_init_postsetup();
405 void __init omap2430_init_late(void)
407 omap_mux_late_init();
408 omap2_common_pm_late_init();
414 * Currently only board-omap3beagle.c should call this because of the
415 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
417 #ifdef CONFIG_ARCH_OMAP3
418 void __init omap3_init_early(void)
420 omap2_set_globals_3xxx();
421 omap3xxx_check_revision();
422 omap3xxx_check_features();
423 omap3xxx_voltagedomains_init();
424 omap3xxx_powerdomains_init();
425 omap3xxx_clockdomains_init();
426 omap3xxx_hwmod_init();
427 omap_hwmod_init_postsetup();
431 void __init omap3430_init_early(void)
436 void __init omap35xx_init_early(void)
441 void __init omap3630_init_early(void)
446 void __init am35xx_init_early(void)
451 void __init ti81xx_init_early(void)
453 omap2_set_globals_ti81xx();
454 omap3xxx_check_revision();
455 ti81xx_check_features();
456 omap3xxx_voltagedomains_init();
457 omap3xxx_powerdomains_init();
458 omap3xxx_clockdomains_init();
459 omap3xxx_hwmod_init();
460 omap_hwmod_init_postsetup();
464 void __init omap3_init_late(void)
466 omap_mux_late_init();
467 omap2_common_pm_late_init();
471 void __init omap3430_init_late(void)
473 omap_mux_late_init();
474 omap2_common_pm_late_init();
478 void __init omap35xx_init_late(void)
480 omap_mux_late_init();
481 omap2_common_pm_late_init();
485 void __init omap3630_init_late(void)
487 omap_mux_late_init();
488 omap2_common_pm_late_init();
492 void __init am35xx_init_late(void)
494 omap_mux_late_init();
495 omap2_common_pm_late_init();
499 void __init ti81xx_init_late(void)
501 omap_mux_late_init();
502 omap2_common_pm_late_init();
507 #ifdef CONFIG_SOC_AM33XX
508 void __init am33xx_init_early(void)
510 omap2_set_globals_am33xx();
511 omap3xxx_check_revision();
512 ti81xx_check_features();
513 am33xx_voltagedomains_init();
514 am33xx_powerdomains_init();
515 am33xx_clockdomains_init();
517 omap_hwmod_init_postsetup();
522 #ifdef CONFIG_ARCH_OMAP4
523 void __init omap4430_init_early(void)
525 omap2_set_globals_443x();
526 omap4xxx_check_revision();
527 omap4xxx_check_features();
528 omap44xx_voltagedomains_init();
529 omap44xx_powerdomains_init();
530 omap44xx_clockdomains_init();
531 omap44xx_hwmod_init();
532 omap_hwmod_init_postsetup();
536 void __init omap4430_init_late(void)
538 omap_mux_late_init();
539 omap2_common_pm_late_init();
544 #ifdef CONFIG_SOC_OMAP5
545 void __init omap5_init_early(void)
547 omap2_set_globals_5xxx();
548 omap5xxx_check_revision();
552 void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
553 struct omap_sdrc_params *sdrc_cs1)
557 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
558 omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
559 _omap2_init_reprogram_sdrc();