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/sram.h>
29 #include <plat/sdrc.h>
30 #include <plat/serial.h>
31 #include <plat/omap-pm.h>
32 #include <plat/omap_hwmod.h>
33 #include <plat/multi.h>
39 #include "powerdomain.h"
40 #include "clockdomain.h"
43 #include "clock2xxx.h"
44 #include "clock3xxx.h"
45 #include "clock44xx.h"
48 * The machine specific code may provide the extra mapping besides the
49 * default mapping provided here.
52 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
53 static struct map_desc omap24xx_io_desc[] __initdata = {
55 .virtual = L3_24XX_VIRT,
56 .pfn = __phys_to_pfn(L3_24XX_PHYS),
57 .length = L3_24XX_SIZE,
61 .virtual = L4_24XX_VIRT,
62 .pfn = __phys_to_pfn(L4_24XX_PHYS),
63 .length = L4_24XX_SIZE,
68 #ifdef CONFIG_SOC_OMAP2420
69 static struct map_desc omap242x_io_desc[] __initdata = {
71 .virtual = DSP_MEM_2420_VIRT,
72 .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS),
73 .length = DSP_MEM_2420_SIZE,
77 .virtual = DSP_IPI_2420_VIRT,
78 .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS),
79 .length = DSP_IPI_2420_SIZE,
83 .virtual = DSP_MMU_2420_VIRT,
84 .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS),
85 .length = DSP_MMU_2420_SIZE,
92 #ifdef CONFIG_SOC_OMAP2430
93 static struct map_desc omap243x_io_desc[] __initdata = {
95 .virtual = L4_WK_243X_VIRT,
96 .pfn = __phys_to_pfn(L4_WK_243X_PHYS),
97 .length = L4_WK_243X_SIZE,
101 .virtual = OMAP243X_GPMC_VIRT,
102 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS),
103 .length = OMAP243X_GPMC_SIZE,
107 .virtual = OMAP243X_SDRC_VIRT,
108 .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS),
109 .length = OMAP243X_SDRC_SIZE,
113 .virtual = OMAP243X_SMS_VIRT,
114 .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS),
115 .length = OMAP243X_SMS_SIZE,
122 #ifdef CONFIG_ARCH_OMAP3
123 static struct map_desc omap34xx_io_desc[] __initdata = {
125 .virtual = L3_34XX_VIRT,
126 .pfn = __phys_to_pfn(L3_34XX_PHYS),
127 .length = L3_34XX_SIZE,
131 .virtual = L4_34XX_VIRT,
132 .pfn = __phys_to_pfn(L4_34XX_PHYS),
133 .length = L4_34XX_SIZE,
137 .virtual = OMAP34XX_GPMC_VIRT,
138 .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
139 .length = OMAP34XX_GPMC_SIZE,
143 .virtual = OMAP343X_SMS_VIRT,
144 .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS),
145 .length = OMAP343X_SMS_SIZE,
149 .virtual = OMAP343X_SDRC_VIRT,
150 .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS),
151 .length = OMAP343X_SDRC_SIZE,
155 .virtual = L4_PER_34XX_VIRT,
156 .pfn = __phys_to_pfn(L4_PER_34XX_PHYS),
157 .length = L4_PER_34XX_SIZE,
161 .virtual = L4_EMU_34XX_VIRT,
162 .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS),
163 .length = L4_EMU_34XX_SIZE,
166 #if defined(CONFIG_DEBUG_LL) && \
167 (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3))
169 .virtual = ZOOM_UART_VIRT,
170 .pfn = __phys_to_pfn(ZOOM_UART_BASE),
178 #ifdef CONFIG_SOC_TI81XX
179 static struct map_desc omapti81xx_io_desc[] __initdata = {
181 .virtual = L4_34XX_VIRT,
182 .pfn = __phys_to_pfn(L4_34XX_PHYS),
183 .length = L4_34XX_SIZE,
189 #ifdef CONFIG_SOC_AM33XX
190 static struct map_desc omapam33xx_io_desc[] __initdata = {
192 .virtual = L4_34XX_VIRT,
193 .pfn = __phys_to_pfn(L4_34XX_PHYS),
194 .length = L4_34XX_SIZE,
198 .virtual = L4_WK_AM33XX_VIRT,
199 .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS),
200 .length = L4_WK_AM33XX_SIZE,
206 #ifdef CONFIG_ARCH_OMAP4
207 static struct map_desc omap44xx_io_desc[] __initdata = {
209 .virtual = L3_44XX_VIRT,
210 .pfn = __phys_to_pfn(L3_44XX_PHYS),
211 .length = L3_44XX_SIZE,
215 .virtual = L4_44XX_VIRT,
216 .pfn = __phys_to_pfn(L4_44XX_PHYS),
217 .length = L4_44XX_SIZE,
221 .virtual = L4_PER_44XX_VIRT,
222 .pfn = __phys_to_pfn(L4_PER_44XX_PHYS),
223 .length = L4_PER_44XX_SIZE,
226 #ifdef CONFIG_OMAP4_ERRATA_I688
228 .virtual = OMAP4_SRAM_VA,
229 .pfn = __phys_to_pfn(OMAP4_SRAM_PA),
231 .type = MT_MEMORY_SO,
238 #ifdef CONFIG_SOC_OMAP5
239 static struct map_desc omap54xx_io_desc[] __initdata = {
241 .virtual = L3_54XX_VIRT,
242 .pfn = __phys_to_pfn(L3_54XX_PHYS),
243 .length = L3_54XX_SIZE,
247 .virtual = L4_54XX_VIRT,
248 .pfn = __phys_to_pfn(L4_54XX_PHYS),
249 .length = L4_54XX_SIZE,
253 .virtual = L4_WK_54XX_VIRT,
254 .pfn = __phys_to_pfn(L4_WK_54XX_PHYS),
255 .length = L4_WK_54XX_SIZE,
259 .virtual = L4_PER_54XX_VIRT,
260 .pfn = __phys_to_pfn(L4_PER_54XX_PHYS),
261 .length = L4_PER_54XX_SIZE,
267 #ifdef CONFIG_SOC_OMAP2420
268 void __init omap242x_map_common_io(void)
270 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
271 iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
275 #ifdef CONFIG_SOC_OMAP2430
276 void __init omap243x_map_common_io(void)
278 iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
279 iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
283 #ifdef CONFIG_ARCH_OMAP3
284 void __init omap34xx_map_common_io(void)
286 iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
290 #ifdef CONFIG_SOC_TI81XX
291 void __init omapti81xx_map_common_io(void)
293 iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
297 #ifdef CONFIG_SOC_AM33XX
298 void __init omapam33xx_map_common_io(void)
300 iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
304 #ifdef CONFIG_ARCH_OMAP4
305 void __init omap44xx_map_common_io(void)
307 iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
308 omap_barriers_init();
312 #ifdef CONFIG_SOC_OMAP5
313 void __init omap5_map_common_io(void)
315 iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
319 * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters
321 * Sets the CORE DPLL3 M2 divider to the same value that it's at
322 * currently. This has the effect of setting the SDRC SDRAM AC timing
323 * registers to the values currently defined by the kernel. Currently
324 * only defined for OMAP3; will return 0 if called on OMAP2. Returns
325 * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2,
326 * or passes along the return value of clk_set_rate().
328 static int __init _omap2_init_reprogram_sdrc(void)
330 struct clk *dpll3_m2_ck;
334 if (!cpu_is_omap34xx())
337 dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck");
338 if (IS_ERR(dpll3_m2_ck))
341 rate = clk_get_rate(dpll3_m2_ck);
342 pr_info("Reprogramming SDRC clock to %ld Hz\n", rate);
343 v = clk_set_rate(dpll3_m2_ck, rate);
345 pr_err("dpll3_m2_clk rate change failed: %d\n", v);
347 clk_put(dpll3_m2_ck);
352 static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data)
354 return omap_hwmod_set_postsetup_state(oh, *(u8 *)data);
357 static void __init omap_common_init_early(void)
359 omap_init_consistent_dma_size();
362 static void __init omap_hwmod_init_postsetup(void)
366 /* Set the default postsetup state for all hwmods */
367 #ifdef CONFIG_PM_RUNTIME
368 postsetup_state = _HWMOD_STATE_IDLE;
370 postsetup_state = _HWMOD_STATE_ENABLED;
372 omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state);
374 omap_pm_if_early_init();
377 #ifdef CONFIG_SOC_OMAP2420
378 void __init omap2420_init_early(void)
380 omap2_set_globals_242x();
381 omap2xxx_check_revision();
382 omap_common_init_early();
383 omap2xxx_voltagedomains_init();
384 omap242x_powerdomains_init();
385 omap242x_clockdomains_init();
386 omap2420_hwmod_init();
387 omap_hwmod_init_postsetup();
391 void __init omap2420_init_late(void)
393 omap_mux_late_init();
394 omap2_common_pm_late_init();
399 #ifdef CONFIG_SOC_OMAP2430
400 void __init omap2430_init_early(void)
402 omap2_set_globals_243x();
403 omap2xxx_check_revision();
404 omap_common_init_early();
405 omap2xxx_voltagedomains_init();
406 omap243x_powerdomains_init();
407 omap243x_clockdomains_init();
408 omap2430_hwmod_init();
409 omap_hwmod_init_postsetup();
413 void __init omap2430_init_late(void)
415 omap_mux_late_init();
416 omap2_common_pm_late_init();
422 * Currently only board-omap3beagle.c should call this because of the
423 * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT.
425 #ifdef CONFIG_ARCH_OMAP3
426 void __init omap3_init_early(void)
428 omap2_set_globals_3xxx();
429 omap3xxx_check_revision();
430 omap3xxx_check_features();
431 omap_common_init_early();
432 omap3xxx_voltagedomains_init();
433 omap3xxx_powerdomains_init();
434 omap3xxx_clockdomains_init();
435 omap3xxx_hwmod_init();
436 omap_hwmod_init_postsetup();
440 void __init omap3430_init_early(void)
445 void __init omap35xx_init_early(void)
450 void __init omap3630_init_early(void)
455 void __init am35xx_init_early(void)
460 void __init ti81xx_init_early(void)
462 omap2_set_globals_ti81xx();
463 omap3xxx_check_revision();
464 ti81xx_check_features();
465 omap_common_init_early();
466 omap3xxx_voltagedomains_init();
467 omap3xxx_powerdomains_init();
468 omap3xxx_clockdomains_init();
469 omap3xxx_hwmod_init();
470 omap_hwmod_init_postsetup();
474 void __init omap3_init_late(void)
476 omap_mux_late_init();
477 omap2_common_pm_late_init();
481 void __init omap3430_init_late(void)
483 omap_mux_late_init();
484 omap2_common_pm_late_init();
488 void __init omap35xx_init_late(void)
490 omap_mux_late_init();
491 omap2_common_pm_late_init();
495 void __init omap3630_init_late(void)
497 omap_mux_late_init();
498 omap2_common_pm_late_init();
502 void __init am35xx_init_late(void)
504 omap_mux_late_init();
505 omap2_common_pm_late_init();
509 void __init ti81xx_init_late(void)
511 omap_mux_late_init();
512 omap2_common_pm_late_init();
517 #ifdef CONFIG_SOC_AM33XX
518 void __init am33xx_init_early(void)
520 omap2_set_globals_am33xx();
521 omap3xxx_check_revision();
522 ti81xx_check_features();
523 omap_common_init_early();
524 am33xx_voltagedomains_init();
525 am33xx_powerdomains_init();
526 am33xx_clockdomains_init();
528 omap_hwmod_init_postsetup();
533 #ifdef CONFIG_ARCH_OMAP4
534 void __init omap4430_init_early(void)
536 omap2_set_globals_443x();
537 omap4xxx_check_revision();
538 omap4xxx_check_features();
539 omap_common_init_early();
540 omap44xx_voltagedomains_init();
541 omap44xx_powerdomains_init();
542 omap44xx_clockdomains_init();
543 omap44xx_hwmod_init();
544 omap_hwmod_init_postsetup();
548 void __init omap4430_init_late(void)
550 omap_mux_late_init();
551 omap2_common_pm_late_init();
556 #ifdef CONFIG_SOC_OMAP5
557 void __init omap5_init_early(void)
559 omap2_set_globals_5xxx();
560 omap5xxx_check_revision();
561 omap_common_init_early();
565 void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
566 struct omap_sdrc_params *sdrc_cs1)
570 if (cpu_is_omap24xx() || omap3_has_sdrc()) {
571 omap2_sdrc_init(sdrc_cs0, sdrc_cs1);
572 _omap2_init_reprogram_sdrc();