arch/arm/mach-omap2/board-generic.c

   1 /*
   2  * Copyright (C) 2005 Nokia Corporation
   3  * Author: Paul Mundt <paul.mundt@nokia.com>
   4  *
   5  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
   6  *
   7  * Modified from the original mach-omap/omap2/board-generic.c did by Paul
   8  * to support the OMAP2+ device tree boards with an unique board file.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14 #include <linux/io.h>
  15 #include <linux/of_irq.h>
  16 #include <linux/of_platform.h>
  17 #include <linux/irqdomain.h>
  18
  19 #include <asm/setup.h>
  20 #include <asm/mach/arch.h>
  21 #include <asm/system_info.h>
  22
  23 #include "common.h"
  24
  25 static const struct of_device_id omap_dt_match_table[] __initconst = {
  26         { .compatible = "simple-bus", },
  27         { .compatible = "ti,omap-infra", },
  28         { }
  29 };
  30
  31 static void __init __maybe_unused omap_generic_init(void)
  32 {
  33         pdata_quirks_init(omap_dt_match_table);
  34         omap_soc_device_init();
  35 }
  36
  37 #ifdef CONFIG_SOC_OMAP2420
  38 static const char *const omap242x_boards_compat[] __initconst = {
  39         "ti,omap2420",
  40         NULL,
  41 };
  42
  43 DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
  44         .reserve        = omap_reserve,
  45         .map_io         = omap242x_map_io,
  46         .init_early     = omap2420_init_early,
  47         .init_machine   = omap_generic_init,
  48         .init_time      = omap_init_time,
  49         .dt_compat      = omap242x_boards_compat,
  50         .restart        = omap2xxx_restart,
  51 MACHINE_END
  52 #endif
  53
  54 #ifdef CONFIG_SOC_OMAP2430
  55 static const char *const omap243x_boards_compat[] __initconst = {
  56         "ti,omap2430",
  57         NULL,
  58 };
  59
  60 DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
  61         .reserve        = omap_reserve,
  62         .map_io         = omap243x_map_io,
  63         .init_early     = omap2430_init_early,
  64         .init_machine   = omap_generic_init,
  65         .init_time      = omap_init_time,
  66         .dt_compat      = omap243x_boards_compat,
  67         .restart        = omap2xxx_restart,
  68 MACHINE_END
  69 #endif
  70
  71 #ifdef CONFIG_ARCH_OMAP3
  72 /* Some boards need board name for legacy userspace in /proc/cpuinfo */
  73 static const char *const n900_boards_compat[] __initconst = {
  74         "nokia,omap3-n900",
  75         NULL,
  76 };
  77
  78 /* Set system_rev from atags */
  79 static void __init rx51_set_system_rev(const struct tag *tags)
  80 {
  81         const struct tag *tag;
  82
  83         if (tags->hdr.tag != ATAG_CORE)
  84                 return;
  85
  86         for_each_tag(tag, tags) {
  87                 if (tag->hdr.tag == ATAG_REVISION) {
  88                         system_rev = tag->u.revision.rev;
  89                         break;
  90                 }
  91         }
  92 }
  93
  94 /* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
  95  * save them while the data is still not overwritten
  96  */
  97 static void __init rx51_reserve(void)
  98 {
  99         const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100);
 100
 101         save_atags(tags);
 102         rx51_set_system_rev(tags);
 103         omap_reserve();
 104 }
 105
 106 DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board")
 107         .reserve        = rx51_reserve,
 108         .map_io         = omap3_map_io,
 109         .init_early     = omap3430_init_early,
 110         .init_machine   = omap_generic_init,
 111         .init_late      = omap3_init_late,
 112         .init_time      = omap_init_time,
 113         .dt_compat      = n900_boards_compat,
 114         .restart        = omap3xxx_restart,
 115 MACHINE_END
 116
 117 /* Generic omap3 boards, most boards can use these */
 118 static const char *const omap3_boards_compat[] __initconst = {
 119         "ti,omap3430",
 120         "ti,omap3",
 121         NULL,
 122 };
 123
 124 DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
 125         .reserve        = omap_reserve,
 126         .map_io         = omap3_map_io,
 127         .init_early     = omap3430_init_early,
 128         .init_machine   = omap_generic_init,
 129         .init_late      = omap3_init_late,
 130         .init_time      = omap_init_time,
 131         .dt_compat      = omap3_boards_compat,
 132         .restart        = omap3xxx_restart,
 133 MACHINE_END
 134
 135 static const char *const omap36xx_boards_compat[] __initconst = {
 136         "ti,omap3630",
 137         "ti,omap36xx",
 138         NULL,
 139 };
 140
 141 DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
 142         .reserve        = omap_reserve,
 143         .map_io         = omap3_map_io,
 144         .init_early     = omap3630_init_early,
 145         .init_machine   = omap_generic_init,
 146         .init_late      = omap3_init_late,
 147         .init_time      = omap_init_time,
 148         .dt_compat      = omap36xx_boards_compat,
 149         .restart        = omap3xxx_restart,
 150 MACHINE_END
 151
 152 static const char *const omap3_gp_boards_compat[] __initconst = {
 153         "ti,omap3-beagle",
 154         "timll,omap3-devkit8000",
 155         NULL,
 156 };
 157
 158 DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
 159         .reserve        = omap_reserve,
 160         .map_io         = omap3_map_io,
 161         .init_early     = omap3430_init_early,
 162         .init_machine   = omap_generic_init,
 163         .init_late      = omap3_init_late,
 164         .init_time      = omap3_secure_sync32k_timer_init,
 165         .dt_compat      = omap3_gp_boards_compat,
 166         .restart        = omap3xxx_restart,
 167 MACHINE_END
 168
 169 static const char *const am3517_boards_compat[] __initconst = {
 170         "ti,am3517",
 171         NULL,
 172 };
 173
 174 DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)")
 175         .reserve        = omap_reserve,
 176         .map_io         = omap3_map_io,
 177         .init_early     = am35xx_init_early,
 178         .init_machine   = omap_generic_init,
 179         .init_late      = omap3_init_late,
 180         .init_time      = omap3_gptimer_timer_init,
 181         .dt_compat      = am3517_boards_compat,
 182         .restart        = omap3xxx_restart,
 183 MACHINE_END
 184 #endif
 185
 186 #ifdef CONFIG_SOC_TI81XX
 187 static const char *const ti814x_boards_compat[] __initconst = {
 188         "ti,dm8148",
 189         "ti,dm814",
 190         NULL,
 191 };
 192
 193 DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)")
 194         .reserve        = omap_reserve,
 195         .map_io         = ti81xx_map_io,
 196         .init_early     = ti814x_init_early,
 197         .init_machine   = omap_generic_init,
 198         .init_late      = ti81xx_init_late,
 199         .init_time      = omap3_gptimer_timer_init,
 200         .dt_compat      = ti814x_boards_compat,
 201         .restart        = ti81xx_restart,
 202 MACHINE_END
 203
 204 static const char *const ti816x_boards_compat[] __initconst = {
 205         "ti,dm8168",
 206         "ti,dm816",
 207         NULL,
 208 };
 209
 210 DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)")
 211         .reserve        = omap_reserve,
 212         .map_io         = ti81xx_map_io,
 213         .init_early     = ti816x_init_early,
 214         .init_machine   = omap_generic_init,
 215         .init_late      = ti81xx_init_late,
 216         .init_time      = omap3_gptimer_timer_init,
 217         .dt_compat      = ti816x_boards_compat,
 218         .restart        = ti81xx_restart,
 219 MACHINE_END
 220 #endif
 221
 222 #ifdef CONFIG_SOC_AM33XX
 223 static const char *const am33xx_boards_compat[] __initconst = {
 224         "ti,am33xx",
 225         NULL,
 226 };
 227
 228 DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
 229         .reserve        = omap_reserve,
 230         .map_io         = am33xx_map_io,
 231         .init_early     = am33xx_init_early,
 232         .init_machine   = omap_generic_init,
 233         .init_late      = am33xx_init_late,
 234         .init_time      = omap3_gptimer_timer_init,
 235         .dt_compat      = am33xx_boards_compat,
 236         .restart        = am33xx_restart,
 237 MACHINE_END
 238 #endif
 239
 240 #ifdef CONFIG_ARCH_OMAP4
 241 static const char *const omap4_boards_compat[] __initconst = {
 242         "ti,omap4460",
 243         "ti,omap4430",
 244         "ti,omap4",
 245         NULL,
 246 };
 247
 248 DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
 249         .l2c_aux_val    = OMAP_L2C_AUX_CTRL,
 250         .l2c_aux_mask   = 0xcf9fffff,
 251         .l2c_write_sec  = omap4_l2c310_write_sec,
 252         .reserve        = omap_reserve,
 253         .smp            = smp_ops(omap4_smp_ops),
 254         .map_io         = omap4_map_io,
 255         .init_early     = omap4430_init_early,
 256         .init_irq       = omap_gic_of_init,
 257         .init_machine   = omap_generic_init,
 258         .init_late      = omap4430_init_late,
 259         .init_time      = omap4_local_timer_init,
 260         .dt_compat      = omap4_boards_compat,
 261         .restart        = omap44xx_restart,
 262 MACHINE_END
 263 #endif
 264
 265 #ifdef CONFIG_SOC_OMAP5
 266 static const char *const omap5_boards_compat[] __initconst = {
 267         "ti,omap5432",
 268         "ti,omap5430",
 269         "ti,omap5",
 270         NULL,
 271 };
 272
 273 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
 274 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 275         .dma_zone_size  = SZ_2G,
 276 #endif
 277         .reserve        = omap_reserve,
 278         .smp            = smp_ops(omap4_smp_ops),
 279         .map_io         = omap5_map_io,
 280         .init_early     = omap5_init_early,
 281         .init_irq       = omap_gic_of_init,
 282         .init_machine   = omap_generic_init,
 283         .init_late      = omap5_init_late,
 284         .init_time      = omap5_realtime_timer_init,
 285         .dt_compat      = omap5_boards_compat,
 286         .restart        = omap44xx_restart,
 287 MACHINE_END
 288 #endif
 289
 290 #ifdef CONFIG_SOC_AM43XX
 291 static const char *const am43_boards_compat[] __initconst = {
 292         "ti,am4372",
 293         "ti,am43",
 294         NULL,
 295 };
 296
 297 DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
 298         .l2c_aux_val    = OMAP_L2C_AUX_CTRL,
 299         .l2c_aux_mask   = 0xcf9fffff,
 300         .l2c_write_sec  = omap4_l2c310_write_sec,
 301         .map_io         = am33xx_map_io,
 302         .init_early     = am43xx_init_early,
 303         .init_late      = am43xx_init_late,
 304         .init_irq       = omap_gic_of_init,
 305         .init_machine   = omap_generic_init,
 306         .init_time      = omap3_gptimer_timer_init,
 307         .dt_compat      = am43_boards_compat,
 308         .restart        = omap44xx_restart,
 309 MACHINE_END
 310 #endif
 311
 312 #ifdef CONFIG_SOC_DRA7XX
 313 static const char *const dra74x_boards_compat[] __initconst = {
 314         "ti,dra762",
 315         "ti,am5728",
 316         "ti,am5726",
 317         "ti,dra742",
 318         "ti,dra7",
 319         NULL,
 320 };
 321
 322 DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
 323 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 324         .dma_zone_size  = SZ_2G,
 325 #endif
 326         .reserve        = omap_reserve,
 327         .smp            = smp_ops(omap4_smp_ops),
 328         .map_io         = dra7xx_map_io,
 329         .init_early     = dra7xx_init_early,
 330         .init_late      = dra7xx_init_late,
 331         .init_irq       = omap_gic_of_init,
 332         .init_machine   = omap_generic_init,
 333         .init_time      = omap5_realtime_timer_init,
 334         .dt_compat      = dra74x_boards_compat,
 335         .restart        = omap44xx_restart,
 336 MACHINE_END
 337
 338 static const char *const dra72x_boards_compat[] __initconst = {
 339         "ti,am5718",
 340         "ti,am5716",
 341         "ti,dra722",
 342         "ti,dra718",
 343         NULL,
 344 };
 345
 346 DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
 347 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 348         .dma_zone_size  = SZ_2G,
 349 #endif
 350         .reserve        = omap_reserve,
 351         .map_io         = dra7xx_map_io,
 352         .init_early     = dra7xx_init_early,
 353         .init_late      = dra7xx_init_late,
 354         .init_irq       = omap_gic_of_init,
 355         .init_machine   = omap_generic_init,
 356         .init_time      = omap5_realtime_timer_init,
 357         .dt_compat      = dra72x_boards_compat,
 358         .restart        = omap44xx_restart,
 359 MACHINE_END
 360 #endif