Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Emma Mobile EV2 processor support |
| 3 | * |
| 4 | * Copyright (C) 2012 Magnus Damm |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/interrupt.h> |
| 22 | #include <linux/irq.h> |
| 23 | #include <linux/platform_device.h> |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 24 | #include <linux/platform_data/gpio-em.h> |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 25 | #include <linux/of_platform.h> |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 26 | #include <linux/delay.h> |
| 27 | #include <linux/input.h> |
| 28 | #include <linux/io.h> |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 29 | #include <linux/of_irq.h> |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 30 | #include <mach/hardware.h> |
| 31 | #include <mach/common.h> |
| 32 | #include <mach/emev2.h> |
| 33 | #include <mach/irqs.h> |
| 34 | #include <asm/mach-types.h> |
| 35 | #include <asm/mach/arch.h> |
| 36 | #include <asm/mach/map.h> |
| 37 | #include <asm/mach/time.h> |
| 38 | #include <asm/hardware/gic.h> |
| 39 | |
Magnus Damm | bd5a875 | 2012-05-16 15:45:25 +0900 | [diff] [blame] | 40 | static struct map_desc emev2_io_desc[] __initdata = { |
| 41 | #ifdef CONFIG_SMP |
| 42 | /* 128K entity map for 0xe0100000 (SMU) */ |
| 43 | { |
| 44 | .virtual = 0xe0100000, |
| 45 | .pfn = __phys_to_pfn(0xe0100000), |
| 46 | .length = SZ_128K, |
| 47 | .type = MT_DEVICE |
| 48 | }, |
| 49 | /* 2M mapping for SCU + L2 controller */ |
| 50 | { |
| 51 | .virtual = 0xf0000000, |
| 52 | .pfn = __phys_to_pfn(0x1e000000), |
| 53 | .length = SZ_2M, |
| 54 | .type = MT_DEVICE |
| 55 | }, |
| 56 | #endif |
| 57 | }; |
| 58 | |
| 59 | void __init emev2_map_io(void) |
| 60 | { |
| 61 | iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc)); |
| 62 | } |
| 63 | |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 64 | /* UART */ |
| 65 | static struct resource uart0_resources[] = { |
| 66 | [0] = { |
| 67 | .start = 0xe1020000, |
| 68 | .end = 0xe1020037, |
| 69 | .flags = IORESOURCE_MEM, |
| 70 | }, |
| 71 | [1] = { |
| 72 | .start = 40, |
| 73 | .flags = IORESOURCE_IRQ, |
| 74 | } |
| 75 | }; |
| 76 | |
| 77 | static struct platform_device uart0_device = { |
| 78 | .name = "serial8250-em", |
| 79 | .id = 0, |
| 80 | .num_resources = ARRAY_SIZE(uart0_resources), |
| 81 | .resource = uart0_resources, |
| 82 | }; |
| 83 | |
| 84 | static struct resource uart1_resources[] = { |
| 85 | [0] = { |
| 86 | .start = 0xe1030000, |
| 87 | .end = 0xe1030037, |
| 88 | .flags = IORESOURCE_MEM, |
| 89 | }, |
| 90 | [1] = { |
| 91 | .start = 41, |
| 92 | .flags = IORESOURCE_IRQ, |
| 93 | } |
| 94 | }; |
| 95 | |
| 96 | static struct platform_device uart1_device = { |
| 97 | .name = "serial8250-em", |
| 98 | .id = 1, |
| 99 | .num_resources = ARRAY_SIZE(uart1_resources), |
| 100 | .resource = uart1_resources, |
| 101 | }; |
| 102 | |
| 103 | static struct resource uart2_resources[] = { |
| 104 | [0] = { |
| 105 | .start = 0xe1040000, |
| 106 | .end = 0xe1040037, |
| 107 | .flags = IORESOURCE_MEM, |
| 108 | }, |
| 109 | [1] = { |
| 110 | .start = 42, |
| 111 | .flags = IORESOURCE_IRQ, |
| 112 | } |
| 113 | }; |
| 114 | |
| 115 | static struct platform_device uart2_device = { |
| 116 | .name = "serial8250-em", |
| 117 | .id = 2, |
| 118 | .num_resources = ARRAY_SIZE(uart2_resources), |
| 119 | .resource = uart2_resources, |
| 120 | }; |
| 121 | |
| 122 | static struct resource uart3_resources[] = { |
| 123 | [0] = { |
| 124 | .start = 0xe1050000, |
| 125 | .end = 0xe1050037, |
| 126 | .flags = IORESOURCE_MEM, |
| 127 | }, |
| 128 | [1] = { |
| 129 | .start = 43, |
| 130 | .flags = IORESOURCE_IRQ, |
| 131 | } |
| 132 | }; |
| 133 | |
| 134 | static struct platform_device uart3_device = { |
| 135 | .name = "serial8250-em", |
| 136 | .id = 3, |
| 137 | .num_resources = ARRAY_SIZE(uart3_resources), |
| 138 | .resource = uart3_resources, |
| 139 | }; |
| 140 | |
| 141 | /* STI */ |
| 142 | static struct resource sti_resources[] = { |
| 143 | [0] = { |
| 144 | .name = "STI", |
| 145 | .start = 0xe0180000, |
| 146 | .end = 0xe0180053, |
| 147 | .flags = IORESOURCE_MEM, |
| 148 | }, |
| 149 | [1] = { |
| 150 | .start = 157, |
| 151 | .flags = IORESOURCE_IRQ, |
| 152 | }, |
| 153 | }; |
| 154 | |
| 155 | static struct platform_device sti_device = { |
| 156 | .name = "em_sti", |
| 157 | .id = 0, |
| 158 | .resource = sti_resources, |
| 159 | .num_resources = ARRAY_SIZE(sti_resources), |
| 160 | }; |
| 161 | |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 162 | |
| 163 | /* GIO */ |
| 164 | static struct gpio_em_config gio0_config = { |
| 165 | .gpio_base = 0, |
| 166 | .irq_base = EMEV2_GPIO_IRQ(0), |
| 167 | .number_of_pins = 32, |
| 168 | }; |
| 169 | |
| 170 | static struct resource gio0_resources[] = { |
| 171 | [0] = { |
| 172 | .name = "GIO_000", |
| 173 | .start = 0xe0050000, |
| 174 | .end = 0xe005002b, |
| 175 | .flags = IORESOURCE_MEM, |
| 176 | }, |
| 177 | [1] = { |
| 178 | .name = "GIO_000", |
| 179 | .start = 0xe0050040, |
| 180 | .end = 0xe005005f, |
| 181 | .flags = IORESOURCE_MEM, |
| 182 | }, |
| 183 | [2] = { |
| 184 | .start = 99, |
| 185 | .flags = IORESOURCE_IRQ, |
| 186 | }, |
| 187 | [3] = { |
| 188 | .start = 100, |
| 189 | .flags = IORESOURCE_IRQ, |
| 190 | }, |
| 191 | }; |
| 192 | |
| 193 | static struct platform_device gio0_device = { |
| 194 | .name = "em_gio", |
| 195 | .id = 0, |
| 196 | .resource = gio0_resources, |
| 197 | .num_resources = ARRAY_SIZE(gio0_resources), |
| 198 | .dev = { |
| 199 | .platform_data = &gio0_config, |
| 200 | }, |
| 201 | }; |
| 202 | |
| 203 | static struct gpio_em_config gio1_config = { |
| 204 | .gpio_base = 32, |
| 205 | .irq_base = EMEV2_GPIO_IRQ(32), |
| 206 | .number_of_pins = 32, |
| 207 | }; |
| 208 | |
| 209 | static struct resource gio1_resources[] = { |
| 210 | [0] = { |
| 211 | .name = "GIO_032", |
| 212 | .start = 0xe0050080, |
| 213 | .end = 0xe00500ab, |
| 214 | .flags = IORESOURCE_MEM, |
| 215 | }, |
| 216 | [1] = { |
| 217 | .name = "GIO_032", |
| 218 | .start = 0xe00500c0, |
| 219 | .end = 0xe00500df, |
| 220 | .flags = IORESOURCE_MEM, |
| 221 | }, |
| 222 | [2] = { |
| 223 | .start = 101, |
| 224 | .flags = IORESOURCE_IRQ, |
| 225 | }, |
| 226 | [3] = { |
| 227 | .start = 102, |
| 228 | .flags = IORESOURCE_IRQ, |
| 229 | }, |
| 230 | }; |
| 231 | |
| 232 | static struct platform_device gio1_device = { |
| 233 | .name = "em_gio", |
| 234 | .id = 1, |
| 235 | .resource = gio1_resources, |
| 236 | .num_resources = ARRAY_SIZE(gio1_resources), |
| 237 | .dev = { |
| 238 | .platform_data = &gio1_config, |
| 239 | }, |
| 240 | }; |
| 241 | |
| 242 | static struct gpio_em_config gio2_config = { |
| 243 | .gpio_base = 64, |
| 244 | .irq_base = EMEV2_GPIO_IRQ(64), |
| 245 | .number_of_pins = 32, |
| 246 | }; |
| 247 | |
| 248 | static struct resource gio2_resources[] = { |
| 249 | [0] = { |
| 250 | .name = "GIO_064", |
| 251 | .start = 0xe0050100, |
| 252 | .end = 0xe005012b, |
| 253 | .flags = IORESOURCE_MEM, |
| 254 | }, |
| 255 | [1] = { |
| 256 | .name = "GIO_064", |
| 257 | .start = 0xe0050140, |
| 258 | .end = 0xe005015f, |
| 259 | .flags = IORESOURCE_MEM, |
| 260 | }, |
| 261 | [2] = { |
| 262 | .start = 103, |
| 263 | .flags = IORESOURCE_IRQ, |
| 264 | }, |
| 265 | [3] = { |
| 266 | .start = 104, |
| 267 | .flags = IORESOURCE_IRQ, |
| 268 | }, |
| 269 | }; |
| 270 | |
| 271 | static struct platform_device gio2_device = { |
| 272 | .name = "em_gio", |
| 273 | .id = 2, |
| 274 | .resource = gio2_resources, |
| 275 | .num_resources = ARRAY_SIZE(gio2_resources), |
| 276 | .dev = { |
| 277 | .platform_data = &gio2_config, |
| 278 | }, |
| 279 | }; |
| 280 | |
| 281 | static struct gpio_em_config gio3_config = { |
| 282 | .gpio_base = 96, |
| 283 | .irq_base = EMEV2_GPIO_IRQ(96), |
| 284 | .number_of_pins = 32, |
| 285 | }; |
| 286 | |
| 287 | static struct resource gio3_resources[] = { |
| 288 | [0] = { |
| 289 | .name = "GIO_096", |
| 290 | .start = 0xe0050100, |
| 291 | .end = 0xe005012b, |
| 292 | .flags = IORESOURCE_MEM, |
| 293 | }, |
| 294 | [1] = { |
| 295 | .name = "GIO_096", |
| 296 | .start = 0xe0050140, |
| 297 | .end = 0xe005015f, |
| 298 | .flags = IORESOURCE_MEM, |
| 299 | }, |
| 300 | [2] = { |
| 301 | .start = 105, |
| 302 | .flags = IORESOURCE_IRQ, |
| 303 | }, |
| 304 | [3] = { |
| 305 | .start = 106, |
| 306 | .flags = IORESOURCE_IRQ, |
| 307 | }, |
| 308 | }; |
| 309 | |
| 310 | static struct platform_device gio3_device = { |
| 311 | .name = "em_gio", |
| 312 | .id = 3, |
| 313 | .resource = gio3_resources, |
| 314 | .num_resources = ARRAY_SIZE(gio3_resources), |
| 315 | .dev = { |
| 316 | .platform_data = &gio3_config, |
| 317 | }, |
| 318 | }; |
| 319 | |
| 320 | static struct gpio_em_config gio4_config = { |
| 321 | .gpio_base = 128, |
| 322 | .irq_base = EMEV2_GPIO_IRQ(128), |
| 323 | .number_of_pins = 31, |
| 324 | }; |
| 325 | |
| 326 | static struct resource gio4_resources[] = { |
| 327 | [0] = { |
| 328 | .name = "GIO_128", |
| 329 | .start = 0xe0050200, |
| 330 | .end = 0xe005022b, |
| 331 | .flags = IORESOURCE_MEM, |
| 332 | }, |
| 333 | [1] = { |
| 334 | .name = "GIO_128", |
| 335 | .start = 0xe0050240, |
| 336 | .end = 0xe005025f, |
| 337 | .flags = IORESOURCE_MEM, |
| 338 | }, |
| 339 | [2] = { |
| 340 | .start = 107, |
| 341 | .flags = IORESOURCE_IRQ, |
| 342 | }, |
| 343 | [3] = { |
| 344 | .start = 108, |
| 345 | .flags = IORESOURCE_IRQ, |
| 346 | }, |
| 347 | }; |
| 348 | |
| 349 | static struct platform_device gio4_device = { |
| 350 | .name = "em_gio", |
| 351 | .id = 4, |
| 352 | .resource = gio4_resources, |
| 353 | .num_resources = ARRAY_SIZE(gio4_resources), |
| 354 | .dev = { |
| 355 | .platform_data = &gio4_config, |
| 356 | }, |
| 357 | }; |
| 358 | |
Tetsuyuki Kobayashi | e433d44 | 2012-09-06 20:14:07 +0900 | [diff] [blame] | 359 | static struct resource pmu_resources[] = { |
| 360 | [0] = { |
| 361 | .start = 152, |
| 362 | .end = 152, |
| 363 | .flags = IORESOURCE_IRQ, |
| 364 | }, |
| 365 | [1] = { |
| 366 | .start = 153, |
| 367 | .end = 153, |
| 368 | .flags = IORESOURCE_IRQ, |
| 369 | }, |
| 370 | }; |
| 371 | |
| 372 | static struct platform_device pmu_device = { |
| 373 | .name = "arm-pmu", |
| 374 | .id = -1, |
| 375 | .num_resources = ARRAY_SIZE(pmu_resources), |
| 376 | .resource = pmu_resources, |
| 377 | }; |
| 378 | |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 379 | static struct platform_device *emev2_early_devices[] __initdata = { |
| 380 | &uart0_device, |
| 381 | &uart1_device, |
| 382 | &uart2_device, |
| 383 | &uart3_device, |
| 384 | }; |
| 385 | |
| 386 | static struct platform_device *emev2_late_devices[] __initdata = { |
| 387 | &sti_device, |
Magnus Damm | 088efd9 | 2012-05-16 15:45:34 +0900 | [diff] [blame] | 388 | &gio0_device, |
| 389 | &gio1_device, |
| 390 | &gio2_device, |
| 391 | &gio3_device, |
| 392 | &gio4_device, |
Tetsuyuki Kobayashi | e433d44 | 2012-09-06 20:14:07 +0900 | [diff] [blame] | 393 | &pmu_device, |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 394 | }; |
| 395 | |
| 396 | void __init emev2_add_standard_devices(void) |
| 397 | { |
| 398 | emev2_clock_init(); |
| 399 | |
| 400 | platform_add_devices(emev2_early_devices, |
| 401 | ARRAY_SIZE(emev2_early_devices)); |
| 402 | |
| 403 | platform_add_devices(emev2_late_devices, |
| 404 | ARRAY_SIZE(emev2_late_devices)); |
| 405 | } |
| 406 | |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 407 | void __init emev2_init_delay(void) |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 408 | { |
| 409 | shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */ |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 410 | } |
| 411 | |
| 412 | void __init emev2_add_early_devices(void) |
| 413 | { |
| 414 | emev2_init_delay(); |
Magnus Damm | 7f627f0 | 2012-05-16 15:44:58 +0900 | [diff] [blame] | 415 | |
| 416 | early_platform_add_devices(emev2_early_devices, |
| 417 | ARRAY_SIZE(emev2_early_devices)); |
| 418 | |
| 419 | /* setup early console here as well */ |
| 420 | shmobile_setup_console(); |
| 421 | } |
| 422 | |
| 423 | void __init emev2_init_irq(void) |
| 424 | { |
| 425 | void __iomem *gic_dist_base; |
| 426 | void __iomem *gic_cpu_base; |
| 427 | |
| 428 | /* Static mappings, never released */ |
| 429 | gic_dist_base = ioremap(0xe0028000, PAGE_SIZE); |
| 430 | gic_cpu_base = ioremap(0xe0020000, PAGE_SIZE); |
| 431 | BUG_ON(!gic_dist_base || !gic_cpu_base); |
| 432 | |
| 433 | /* Use GIC to handle interrupts */ |
| 434 | gic_init(0, 29, gic_dist_base, gic_cpu_base); |
| 435 | } |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 436 | |
| 437 | #ifdef CONFIG_USE_OF |
| 438 | static const struct of_dev_auxdata emev2_auxdata_lookup[] __initconst = { |
| 439 | { } |
| 440 | }; |
| 441 | |
| 442 | void __init emev2_add_standard_devices_dt(void) |
| 443 | { |
| 444 | of_platform_populate(NULL, of_default_bus_match_table, |
| 445 | emev2_auxdata_lookup, NULL); |
| 446 | } |
| 447 | |
| 448 | static const struct of_device_id emev2_dt_irq_match[] = { |
| 449 | { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, }, |
| 450 | {}, |
| 451 | }; |
| 452 | |
| 453 | static const char *emev2_boards_compat_dt[] __initdata = { |
| 454 | "renesas,emev2", |
| 455 | NULL, |
| 456 | }; |
| 457 | |
| 458 | void __init emev2_init_irq_dt(void) |
| 459 | { |
| 460 | of_irq_init(emev2_dt_irq_match); |
| 461 | } |
| 462 | |
| 463 | DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)") |
Marc Zyngier | a62580e | 2011-09-08 13:15:22 +0100 | [diff] [blame] | 464 | .smp = smp_ops(emev2_smp_ops), |
Magnus Damm | 3d5de27 | 2012-05-16 15:45:54 +0900 | [diff] [blame] | 465 | .init_early = emev2_init_delay, |
| 466 | .nr_irqs = NR_IRQS_LEGACY, |
| 467 | .init_irq = emev2_init_irq_dt, |
| 468 | .handle_irq = gic_handle_irq, |
| 469 | .init_machine = emev2_add_standard_devices_dt, |
| 470 | .timer = &shmobile_timer, |
| 471 | .dt_compat = emev2_boards_compat_dt, |
| 472 | MACHINE_END |
| 473 | |
| 474 | #endif /* CONFIG_USE_OF */ |