1 /* 2 * linux/arch/arm/mach-omap2/devices.c 3 * 4 * OMAP2 platform device setup/initialization 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; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 #include <linux/gpio.h> 12 #include <linux/kernel.h> 13 #include <linux/init.h> 14 #include <linux/platform_device.h> 15 #include <linux/io.h> 16 #include <linux/clk.h> 17 #include <linux/err.h> 18 #include <linux/slab.h> 19 #include <linux/of.h> 20 #include <linux/pinctrl/machine.h> 21 #include <linux/platform_data/omap4-keypad.h> 22 #include <linux/platform_data/mailbox-omap.h> 23 24 #include <asm/mach-types.h> 25 #include <asm/mach/map.h> 26 27 #include <linux/omap-dma.h> 28 29 #include "iomap.h" 30 #include "omap_hwmod.h" 31 #include "omap_device.h" 32 #include "omap4-keypad.h" 33 34 #include "soc.h" 35 #include "common.h" 36 #include "mux.h" 37 #include "control.h" 38 #include "devices.h" 39 #include "display.h" 40 41 #define L3_MODULES_MAX_LEN 12 42 #define L3_MODULES 3 43 44 static int __init omap3_l3_init(void) 45 { 46 struct omap_hwmod *oh; 47 struct platform_device *pdev; 48 char oh_name[L3_MODULES_MAX_LEN]; 49 50 /* 51 * To avoid code running on other OMAPs in 52 * multi-omap builds 53 */ 54 if (!(cpu_is_omap34xx())) 55 return -ENODEV; 56 57 snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main"); 58 59 oh = omap_hwmod_lookup(oh_name); 60 61 if (!oh) 62 pr_err("could not look up %s\n", oh_name); 63 64 pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0); 65 66 WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name); 67 68 return PTR_RET(pdev); 69 } 70 omap_postcore_initcall(omap3_l3_init); 71 72 static int __init omap4_l3_init(void) 73 { 74 int i; 75 struct omap_hwmod *oh[3]; 76 struct platform_device *pdev; 77 char oh_name[L3_MODULES_MAX_LEN]; 78 79 /* If dtb is there, the devices will be created dynamically */ 80 if (of_have_populated_dt()) 81 return -ENODEV; 82 83 /* 84 * To avoid code running on other OMAPs in 85 * multi-omap builds 86 */ 87 if (!cpu_is_omap44xx() && !soc_is_omap54xx()) 88 return -ENODEV; 89 90 for (i = 0; i < L3_MODULES; i++) { 91 snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main_%d", i+1); 92 93 oh[i] = omap_hwmod_lookup(oh_name); 94 if (!(oh[i])) 95 pr_err("could not look up %s\n", oh_name); 96 } 97 98 pdev = omap_device_build_ss("omap_l3_noc", 0, oh, 3, NULL, 0); 99 100 WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name); 101 102 return PTR_RET(pdev); 103 } 104 omap_postcore_initcall(omap4_l3_init); 105 106 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE) 107 108 static struct resource omap2cam_resources[] = { 109 { 110 .start = OMAP24XX_CAMERA_BASE, 111 .end = OMAP24XX_CAMERA_BASE + 0xfff, 112 .flags = IORESOURCE_MEM, 113 }, 114 { 115 .start = 24 + OMAP_INTC_START, 116 .flags = IORESOURCE_IRQ, 117 } 118 }; 119 120 static struct platform_device omap2cam_device = { 121 .name = "omap24xxcam", 122 .id = -1, 123 .num_resources = ARRAY_SIZE(omap2cam_resources), 124 .resource = omap2cam_resources, 125 }; 126 #endif 127 128 #if defined(CONFIG_IOMMU_API) 129 130 #include <linux/platform_data/iommu-omap.h> 131 132 static struct resource omap3isp_resources[] = { 133 { 134 .start = OMAP3430_ISP_BASE, 135 .end = OMAP3430_ISP_END, 136 .flags = IORESOURCE_MEM, 137 }, 138 { 139 .start = OMAP3430_ISP_CCP2_BASE, 140 .end = OMAP3430_ISP_CCP2_END, 141 .flags = IORESOURCE_MEM, 142 }, 143 { 144 .start = OMAP3430_ISP_CCDC_BASE, 145 .end = OMAP3430_ISP_CCDC_END, 146 .flags = IORESOURCE_MEM, 147 }, 148 { 149 .start = OMAP3430_ISP_HIST_BASE, 150 .end = OMAP3430_ISP_HIST_END, 151 .flags = IORESOURCE_MEM, 152 }, 153 { 154 .start = OMAP3430_ISP_H3A_BASE, 155 .end = OMAP3430_ISP_H3A_END, 156 .flags = IORESOURCE_MEM, 157 }, 158 { 159 .start = OMAP3430_ISP_PREV_BASE, 160 .end = OMAP3430_ISP_PREV_END, 161 .flags = IORESOURCE_MEM, 162 }, 163 { 164 .start = OMAP3430_ISP_RESZ_BASE, 165 .end = OMAP3430_ISP_RESZ_END, 166 .flags = IORESOURCE_MEM, 167 }, 168 { 169 .start = OMAP3430_ISP_SBL_BASE, 170 .end = OMAP3430_ISP_SBL_END, 171 .flags = IORESOURCE_MEM, 172 }, 173 { 174 .start = OMAP3430_ISP_CSI2A_REGS1_BASE, 175 .end = OMAP3430_ISP_CSI2A_REGS1_END, 176 .flags = IORESOURCE_MEM, 177 }, 178 { 179 .start = OMAP3430_ISP_CSIPHY2_BASE, 180 .end = OMAP3430_ISP_CSIPHY2_END, 181 .flags = IORESOURCE_MEM, 182 }, 183 { 184 .start = OMAP3630_ISP_CSI2A_REGS2_BASE, 185 .end = OMAP3630_ISP_CSI2A_REGS2_END, 186 .flags = IORESOURCE_MEM, 187 }, 188 { 189 .start = OMAP3630_ISP_CSI2C_REGS1_BASE, 190 .end = OMAP3630_ISP_CSI2C_REGS1_END, 191 .flags = IORESOURCE_MEM, 192 }, 193 { 194 .start = OMAP3630_ISP_CSIPHY1_BASE, 195 .end = OMAP3630_ISP_CSIPHY1_END, 196 .flags = IORESOURCE_MEM, 197 }, 198 { 199 .start = OMAP3630_ISP_CSI2C_REGS2_BASE, 200 .end = OMAP3630_ISP_CSI2C_REGS2_END, 201 .flags = IORESOURCE_MEM, 202 }, 203 { 204 .start = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE, 205 .end = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE + 3, 206 .flags = IORESOURCE_MEM, 207 }, 208 { 209 .start = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL, 210 .end = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL + 3, 211 .flags = IORESOURCE_MEM, 212 }, 213 { 214 .start = 24 + OMAP_INTC_START, 215 .flags = IORESOURCE_IRQ, 216 } 217 }; 218 219 static struct platform_device omap3isp_device = { 220 .name = "omap3isp", 221 .id = -1, 222 .num_resources = ARRAY_SIZE(omap3isp_resources), 223 .resource = omap3isp_resources, 224 }; 225 226 static struct omap_iommu_arch_data omap3_isp_iommu = { 227 .name = "mmu_isp", 228 }; 229 230 int omap3_init_camera(struct isp_platform_data *pdata) 231 { 232 if (of_have_populated_dt()) 233 omap3_isp_iommu.name = "480bd400.mmu"; 234 235 omap3isp_device.dev.platform_data = pdata; 236 omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu; 237 238 return platform_device_register(&omap3isp_device); 239 } 240 241 #else /* !CONFIG_IOMMU_API */ 242 243 int omap3_init_camera(struct isp_platform_data *pdata) 244 { 245 return 0; 246 } 247 248 #endif 249 250 static inline void omap_init_camera(void) 251 { 252 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE) 253 if (cpu_is_omap24xx()) 254 platform_device_register(&omap2cam_device); 255 #endif 256 } 257 258 int __init omap4_keyboard_init(struct omap4_keypad_platform_data 259 *sdp4430_keypad_data, struct omap_board_data *bdata) 260 { 261 struct platform_device *pdev; 262 struct omap_hwmod *oh; 263 struct omap4_keypad_platform_data *keypad_data; 264 unsigned int id = -1; 265 char *oh_name = "kbd"; 266 char *name = "omap4-keypad"; 267 268 oh = omap_hwmod_lookup(oh_name); 269 if (!oh) { 270 pr_err("Could not look up %s\n", oh_name); 271 return -ENODEV; 272 } 273 274 keypad_data = sdp4430_keypad_data; 275 276 pdev = omap_device_build(name, id, oh, keypad_data, 277 sizeof(struct omap4_keypad_platform_data)); 278 279 if (IS_ERR(pdev)) { 280 WARN(1, "Can't build omap_device for %s:%s.\n", 281 name, oh->name); 282 return PTR_ERR(pdev); 283 } 284 oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt); 285 286 return 0; 287 } 288 289 #if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE) 290 static inline void __init omap_init_mbox(void) 291 { 292 struct omap_hwmod *oh; 293 struct platform_device *pdev; 294 struct omap_mbox_pdata *pdata; 295 296 oh = omap_hwmod_lookup("mailbox"); 297 if (!oh) { 298 pr_err("%s: unable to find hwmod\n", __func__); 299 return; 300 } 301 if (!oh->dev_attr) { 302 pr_err("%s: hwmod doesn't have valid attrs\n", __func__); 303 return; 304 } 305 306 pdata = (struct omap_mbox_pdata *)oh->dev_attr; 307 pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata)); 308 WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n", 309 __func__, PTR_ERR(pdev)); 310 } 311 #else 312 static inline void omap_init_mbox(void) { } 313 #endif /* CONFIG_OMAP2PLUS_MBOX */ 314 315 static inline void omap_init_sti(void) {} 316 317 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE) 318 319 static struct platform_device omap_pcm = { 320 .name = "omap-pcm-audio", 321 .id = -1, 322 }; 323 324 static void omap_init_audio(void) 325 { 326 platform_device_register(&omap_pcm); 327 } 328 329 #else 330 static inline void omap_init_audio(void) {} 331 #endif 332 333 #if defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI) || \ 334 defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI_MODULE) 335 336 static struct platform_device omap_hdmi_audio = { 337 .name = "omap-hdmi-audio", 338 .id = -1, 339 }; 340 341 static void __init omap_init_hdmi_audio(void) 342 { 343 struct omap_hwmod *oh; 344 struct platform_device *pdev; 345 346 oh = omap_hwmod_lookup("dss_hdmi"); 347 if (!oh) 348 return; 349 350 pdev = omap_device_build("omap-hdmi-audio-dai", -1, oh, NULL, 0); 351 WARN(IS_ERR(pdev), 352 "Can't build omap_device for omap-hdmi-audio-dai.\n"); 353 354 platform_device_register(&omap_hdmi_audio); 355 } 356 #else 357 static inline void omap_init_hdmi_audio(void) {} 358 #endif 359 360 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE) 361 362 #include <linux/platform_data/spi-omap2-mcspi.h> 363 364 static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused) 365 { 366 struct platform_device *pdev; 367 char *name = "omap2_mcspi"; 368 struct omap2_mcspi_platform_config *pdata; 369 static int spi_num; 370 struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr; 371 372 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); 373 if (!pdata) { 374 pr_err("Memory allocation for McSPI device failed\n"); 375 return -ENOMEM; 376 } 377 378 pdata->num_cs = mcspi_attrib->num_chipselect; 379 switch (oh->class->rev) { 380 case OMAP2_MCSPI_REV: 381 case OMAP3_MCSPI_REV: 382 pdata->regs_offset = 0; 383 break; 384 case OMAP4_MCSPI_REV: 385 pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET; 386 break; 387 default: 388 pr_err("Invalid McSPI Revision value\n"); 389 kfree(pdata); 390 return -EINVAL; 391 } 392 393 spi_num++; 394 pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata)); 395 WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n", 396 name, oh->name); 397 kfree(pdata); 398 return 0; 399 } 400 401 static void omap_init_mcspi(void) 402 { 403 omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL); 404 } 405 406 #else 407 static inline void omap_init_mcspi(void) {} 408 #endif 409 410 /** 411 * omap_init_rng - bind the RNG hwmod to the RNG omap_device 412 * 413 * Bind the RNG hwmod to the RNG omap_device. No return value. 414 */ 415 static void omap_init_rng(void) 416 { 417 struct omap_hwmod *oh; 418 struct platform_device *pdev; 419 420 oh = omap_hwmod_lookup("rng"); 421 if (!oh) 422 return; 423 424 pdev = omap_device_build("omap_rng", -1, oh, NULL, 0); 425 WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n"); 426 } 427 428 static void __init omap_init_sham(void) 429 { 430 struct omap_hwmod *oh; 431 struct platform_device *pdev; 432 433 oh = omap_hwmod_lookup("sham"); 434 if (!oh) 435 return; 436 437 pdev = omap_device_build("omap-sham", -1, oh, NULL, 0); 438 WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n"); 439 } 440 441 static void __init omap_init_aes(void) 442 { 443 struct omap_hwmod *oh; 444 struct platform_device *pdev; 445 446 oh = omap_hwmod_lookup("aes"); 447 if (!oh) 448 return; 449 450 pdev = omap_device_build("omap-aes", -1, oh, NULL, 0); 451 WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n"); 452 } 453 454 /*-------------------------------------------------------------------------*/ 455 456 #if defined(CONFIG_VIDEO_OMAP2_VOUT) || \ 457 defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE) 458 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) 459 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = { 460 }; 461 #else 462 static struct resource omap_vout_resource[2] = { 463 }; 464 #endif 465 466 static struct platform_device omap_vout_device = { 467 .name = "omap_vout", 468 .num_resources = ARRAY_SIZE(omap_vout_resource), 469 .resource = &omap_vout_resource[0], 470 .id = -1, 471 }; 472 473 int __init omap_init_vout(void) 474 { 475 return platform_device_register(&omap_vout_device); 476 } 477 #else 478 int __init omap_init_vout(void) { return 0; } 479 #endif 480 481 /*-------------------------------------------------------------------------*/ 482 483 static int __init omap2_init_devices(void) 484 { 485 /* Enable dummy states for those platforms without pinctrl support */ 486 if (!of_have_populated_dt()) 487 pinctrl_provide_dummies(); 488 489 /* 490 * please keep these calls, and their implementations above, 491 * in alphabetical order so they're easier to sort through. 492 */ 493 omap_init_audio(); 494 omap_init_camera(); 495 omap_init_hdmi_audio(); 496 omap_init_mbox(); 497 /* If dtb is there, the devices will be created dynamically */ 498 if (!of_have_populated_dt()) { 499 omap_init_mcspi(); 500 omap_init_sham(); 501 omap_init_aes(); 502 omap_init_rng(); 503 } 504 omap_init_sti(); 505 506 return 0; 507 } 508 omap_arch_initcall(omap2_init_devices); 509