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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2005 Nokia Corporation
   4  * Author: Paul Mundt <paul.mundt@nokia.com>
   5  *
   6  * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
   7  *
   8  * Modified from the original mach-omap/omap2/board-generic.c did by Paul
   9  * to support the OMAP2+ device tree boards with an unique board file.
  10  */
  11 #include <linux/io.h>
  12 #include <linux/of_irq.h>
  13 #include <linux/of_platform.h>
  14 #include <linux/irqdomain.h>
  15 #include <linux/clocksource.h>
  16 #include <linux/clockchips.h>
  17
  18 #include <asm/setup.h>
  19 #include <asm/mach/arch.h>
  20 #include <asm/system_info.h>
  21
  22 #include "common.h"
  23
  24 static const struct of_device_id omap_dt_match_table[] __initconst = {
  25         { .compatible = "simple-bus", },
  26         { .compatible = "ti,omap-infra", },
  27         { }
  28 };
  29
  30 static void __init __maybe_unused omap_generic_init(void)
  31 {
  32         pdata_quirks_init(omap_dt_match_table);
  33         omap_soc_device_init();
  34 }
  35
  36 /* Clocks are needed early, see drivers/clocksource for the rest */
  37 static void __init __maybe_unused omap_init_time_of(void)
  38 {
  39         omap_clk_init();
  40         timer_probe();
  41 }
  42
  43 /* Used by am437x for ARM timer in non-SMP configurations */
  44 #if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)
  45 void tick_broadcast(const struct cpumask *mask)
  46 {
  47 }
  48 #endif
  49
  50 #ifdef CONFIG_SOC_OMAP2420
  51 static const char *const omap242x_boards_compat[] __initconst = {
  52         "ti,omap2420",
  53         NULL,
  54 };
  55
  56 DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
  57         .reserve        = omap_reserve,
  58         .map_io         = omap242x_map_io,
  59         .init_early     = omap2420_init_early,
  60         .init_machine   = omap_generic_init,
  61         .init_time      = omap_init_time_of,
  62         .dt_compat      = omap242x_boards_compat,
  63         .restart        = omap2xxx_restart,
  64 MACHINE_END
  65 #endif
  66
  67 #ifdef CONFIG_SOC_OMAP2430
  68 static const char *const omap243x_boards_compat[] __initconst = {
  69         "ti,omap2430",
  70         NULL,
  71 };
  72
  73 DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
  74         .reserve        = omap_reserve,
  75         .map_io         = omap243x_map_io,
  76         .init_early     = omap2430_init_early,
  77         .init_machine   = omap_generic_init,
  78         .init_time      = omap_init_time_of,
  79         .dt_compat      = omap243x_boards_compat,
  80         .restart        = omap2xxx_restart,
  81 MACHINE_END
  82 #endif
  83
  84 #ifdef CONFIG_ARCH_OMAP3
  85 /* Some boards need board name for legacy userspace in /proc/cpuinfo */
  86 static const char *const n900_boards_compat[] __initconst = {
  87         "nokia,omap3-n900",
  88         NULL,
  89 };
  90
  91 /* Set system_rev from atags */
  92 static void __init rx51_set_system_rev(const struct tag *tags)
  93 {
  94         const struct tag *tag;
  95
  96         if (tags->hdr.tag != ATAG_CORE)
  97                 return;
  98
  99         for_each_tag(tag, tags) {
 100                 if (tag->hdr.tag == ATAG_REVISION) {
 101                         system_rev = tag->u.revision.rev;
 102                         break;
 103                 }
 104         }
 105 }
 106
 107 /* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags,
 108  * save them while the data is still not overwritten
 109  */
 110 static void __init rx51_reserve(void)
 111 {
 112         const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100);
 113
 114         save_atags(tags);
 115         rx51_set_system_rev(tags);
 116         omap_reserve();
 117 }
 118
 119 DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board")
 120         .reserve        = rx51_reserve,
 121         .map_io         = omap3_map_io,
 122         .init_early     = omap3430_init_early,
 123         .init_machine   = omap_generic_init,
 124         .init_late      = omap3_init_late,
 125         .init_time      = omap_init_time_of,
 126         .dt_compat      = n900_boards_compat,
 127         .restart        = omap3xxx_restart,
 128 MACHINE_END
 129
 130 /* Generic omap3 boards, most boards can use these */
 131 static const char *const omap3_boards_compat[] __initconst = {
 132         "ti,omap3430",
 133         "ti,omap3",
 134         NULL,
 135 };
 136
 137 DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
 138         .reserve        = omap_reserve,
 139         .map_io         = omap3_map_io,
 140         .init_early     = omap3430_init_early,
 141         .init_machine   = omap_generic_init,
 142         .init_late      = omap3_init_late,
 143         .init_time      = omap_init_time_of,
 144         .dt_compat      = omap3_boards_compat,
 145         .restart        = omap3xxx_restart,
 146 MACHINE_END
 147
 148 static const char *const omap36xx_boards_compat[] __initconst = {
 149         "ti,omap3630",
 150         "ti,omap36xx",
 151         NULL,
 152 };
 153
 154 DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
 155         .reserve        = omap_reserve,
 156         .map_io         = omap3_map_io,
 157         .init_early     = omap3630_init_early,
 158         .init_machine   = omap_generic_init,
 159         .init_late      = omap3_init_late,
 160         .init_time      = omap_init_time_of,
 161         .dt_compat      = omap36xx_boards_compat,
 162         .restart        = omap3xxx_restart,
 163 MACHINE_END
 164
 165 static const char *const omap3_gp_boards_compat[] __initconst = {
 166         "ti,omap3-beagle",
 167         "timll,omap3-devkit8000",
 168         NULL,
 169 };
 170
 171 DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
 172         .reserve        = omap_reserve,
 173         .map_io         = omap3_map_io,
 174         .init_early     = omap3430_init_early,
 175         .init_machine   = omap_generic_init,
 176         .init_late      = omap3_init_late,
 177         .init_time      = omap_init_time_of,
 178         .dt_compat      = omap3_gp_boards_compat,
 179         .restart        = omap3xxx_restart,
 180 MACHINE_END
 181
 182 static const char *const am3517_boards_compat[] __initconst = {
 183         "ti,am3517",
 184         NULL,
 185 };
 186
 187 DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)")
 188         .reserve        = omap_reserve,
 189         .map_io         = omap3_map_io,
 190         .init_early     = am35xx_init_early,
 191         .init_machine   = omap_generic_init,
 192         .init_late      = omap3_init_late,
 193         .init_time      = omap_init_time_of,
 194         .dt_compat      = am3517_boards_compat,
 195         .restart        = omap3xxx_restart,
 196 MACHINE_END
 197 #endif
 198
 199 #ifdef CONFIG_SOC_TI81XX
 200 static const char *const ti814x_boards_compat[] __initconst = {
 201         "ti,dm8148",
 202         "ti,dm814",
 203         NULL,
 204 };
 205
 206 DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)")
 207         .reserve        = omap_reserve,
 208         .map_io         = ti81xx_map_io,
 209         .init_early     = ti814x_init_early,
 210         .init_machine   = omap_generic_init,
 211         .init_late      = ti81xx_init_late,
 212         .init_time      = omap_init_time_of,
 213         .dt_compat      = ti814x_boards_compat,
 214         .restart        = ti81xx_restart,
 215 MACHINE_END
 216
 217 static const char *const ti816x_boards_compat[] __initconst = {
 218         "ti,dm8168",
 219         "ti,dm816",
 220         NULL,
 221 };
 222
 223 DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)")
 224         .reserve        = omap_reserve,
 225         .map_io         = ti81xx_map_io,
 226         .init_early     = ti816x_init_early,
 227         .init_machine   = omap_generic_init,
 228         .init_late      = ti81xx_init_late,
 229         .init_time      = omap_init_time_of,
 230         .dt_compat      = ti816x_boards_compat,
 231         .restart        = ti81xx_restart,
 232 MACHINE_END
 233 #endif
 234
 235 #ifdef CONFIG_SOC_AM33XX
 236 static const char *const am33xx_boards_compat[] __initconst = {
 237         "ti,am33xx",
 238         NULL,
 239 };
 240
 241 DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
 242         .reserve        = omap_reserve,
 243         .map_io         = am33xx_map_io,
 244         .init_early     = am33xx_init_early,
 245         .init_machine   = omap_generic_init,
 246         .init_late      = am33xx_init_late,
 247         .init_time      = omap_init_time_of,
 248         .dt_compat      = am33xx_boards_compat,
 249         .restart        = am33xx_restart,
 250 MACHINE_END
 251 #endif
 252
 253 #ifdef CONFIG_ARCH_OMAP4
 254 static const char *const omap4_boards_compat[] __initconst = {
 255         "ti,omap4460",
 256         "ti,omap4430",
 257         "ti,omap4",
 258         NULL,
 259 };
 260
 261 DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
 262         .l2c_aux_val    = OMAP_L2C_AUX_CTRL,
 263         .l2c_aux_mask   = 0xcf9fffff,
 264         .l2c_write_sec  = omap4_l2c310_write_sec,
 265         .reserve        = omap_reserve,
 266         .smp            = smp_ops(omap4_smp_ops),
 267         .map_io         = omap4_map_io,
 268         .init_early     = omap4430_init_early,
 269         .init_irq       = omap_gic_of_init,
 270         .init_machine   = omap_generic_init,
 271         .init_late      = omap4430_init_late,
 272         .init_time      = omap_init_time_of,
 273         .dt_compat      = omap4_boards_compat,
 274         .restart        = omap44xx_restart,
 275 MACHINE_END
 276 #endif
 277
 278 #ifdef CONFIG_SOC_OMAP5
 279 static const char *const omap5_boards_compat[] __initconst = {
 280         "ti,omap5432",
 281         "ti,omap5430",
 282         "ti,omap5",
 283         NULL,
 284 };
 285
 286 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
 287 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 288         .dma_zone_size  = SZ_2G,
 289 #endif
 290         .reserve        = omap_reserve,
 291         .smp            = smp_ops(omap4_smp_ops),
 292         .map_io         = omap5_map_io,
 293         .init_early     = omap5_init_early,
 294         .init_irq       = omap_gic_of_init,
 295         .init_machine   = omap_generic_init,
 296         .init_late      = omap5_init_late,
 297         .init_time      = omap5_realtime_timer_init,
 298         .dt_compat      = omap5_boards_compat,
 299         .restart        = omap44xx_restart,
 300 MACHINE_END
 301 #endif
 302
 303 #ifdef CONFIG_SOC_AM43XX
 304 static const char *const am43_boards_compat[] __initconst = {
 305         "ti,am4372",
 306         "ti,am43",
 307         NULL,
 308 };
 309
 310 DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
 311         .l2c_aux_val    = OMAP_L2C_AUX_CTRL,
 312         .l2c_aux_mask   = 0xcf9fffff,
 313         .l2c_write_sec  = omap4_l2c310_write_sec,
 314         .map_io         = am33xx_map_io,
 315         .init_early     = am43xx_init_early,
 316         .init_late      = am43xx_init_late,
 317         .init_irq       = omap_gic_of_init,
 318         .init_machine   = omap_generic_init,
 319         .init_time      = omap_init_time_of,
 320         .dt_compat      = am43_boards_compat,
 321         .restart        = omap44xx_restart,
 322 MACHINE_END
 323 #endif
 324
 325 #ifdef CONFIG_SOC_DRA7XX
 326 static const char *const dra74x_boards_compat[] __initconst = {
 327         "ti,dra762",
 328         "ti,am5728",
 329         "ti,am5726",
 330         "ti,dra742",
 331         "ti,dra7",
 332         NULL,
 333 };
 334
 335 DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
 336 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 337         .dma_zone_size  = SZ_2G,
 338 #endif
 339         .reserve        = omap_reserve,
 340         .smp            = smp_ops(omap4_smp_ops),
 341         .map_io         = dra7xx_map_io,
 342         .init_early     = dra7xx_init_early,
 343         .init_late      = dra7xx_init_late,
 344         .init_irq       = omap_gic_of_init,
 345         .init_machine   = omap_generic_init,
 346         .init_time      = omap5_realtime_timer_init,
 347         .dt_compat      = dra74x_boards_compat,
 348         .restart        = omap44xx_restart,
 349 MACHINE_END
 350
 351 static const char *const dra72x_boards_compat[] __initconst = {
 352         "ti,am5718",
 353         "ti,am5716",
 354         "ti,dra722",
 355         "ti,dra718",
 356         NULL,
 357 };
 358
 359 DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
 360 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 361         .dma_zone_size  = SZ_2G,
 362 #endif
 363         .reserve        = omap_reserve,
 364         .map_io         = dra7xx_map_io,
 365         .init_early     = dra7xx_init_early,
 366         .init_late      = dra7xx_init_late,
 367         .init_irq       = omap_gic_of_init,
 368         .init_machine   = omap_generic_init,
 369         .init_time      = omap5_realtime_timer_init,
 370         .dt_compat      = dra72x_boards_compat,
 371         .restart        = omap44xx_restart,
 372 MACHINE_END
 373 #endif