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/wl12xx.h> 23 #include <linux/platform_data/mailbox-omap.h> 24 25 #include <asm/mach-types.h> 26 #include <asm/mach/map.h> 27 28 #include <linux/omap-dma.h> 29 30 #include "iomap.h" 31 #include "omap_hwmod.h" 32 #include "omap_device.h" 33 #include "omap4-keypad.h" 34 35 #include "soc.h" 36 #include "common.h" 37 #include "mux.h" 38 #include "control.h" 39 #include "devices.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 omap3isp_device.dev.platform_data = pdata; 233 omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu; 234 235 return platform_device_register(&omap3isp_device); 236 } 237 238 #else /* !CONFIG_IOMMU_API */ 239 240 int omap3_init_camera(struct isp_platform_data *pdata) 241 { 242 return 0; 243 } 244 245 #endif 246 247 static inline void omap_init_camera(void) 248 { 249 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE) 250 if (cpu_is_omap24xx()) 251 platform_device_register(&omap2cam_device); 252 #endif 253 } 254 255 int __init omap4_keyboard_init(struct omap4_keypad_platform_data 256 *sdp4430_keypad_data, struct omap_board_data *bdata) 257 { 258 struct platform_device *pdev; 259 struct omap_hwmod *oh; 260 struct omap4_keypad_platform_data *keypad_data; 261 unsigned int id = -1; 262 char *oh_name = "kbd"; 263 char *name = "omap4-keypad"; 264 265 oh = omap_hwmod_lookup(oh_name); 266 if (!oh) { 267 pr_err("Could not look up %s\n", oh_name); 268 return -ENODEV; 269 } 270 271 keypad_data = sdp4430_keypad_data; 272 273 pdev = omap_device_build(name, id, oh, keypad_data, 274 sizeof(struct omap4_keypad_platform_data)); 275 276 if (IS_ERR(pdev)) { 277 WARN(1, "Can't build omap_device for %s:%s.\n", 278 name, oh->name); 279 return PTR_ERR(pdev); 280 } 281 oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt); 282 283 return 0; 284 } 285 286 #if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE) 287 static inline void __init omap_init_mbox(void) 288 { 289 struct omap_hwmod *oh; 290 struct platform_device *pdev; 291 struct omap_mbox_pdata *pdata; 292 293 oh = omap_hwmod_lookup("mailbox"); 294 if (!oh) { 295 pr_err("%s: unable to find hwmod\n", __func__); 296 return; 297 } 298 if (!oh->dev_attr) { 299 pr_err("%s: hwmod doesn't have valid attrs\n", __func__); 300 return; 301 } 302 303 pdata = (struct omap_mbox_pdata *)oh->dev_attr; 304 pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata)); 305 WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n", 306 __func__, PTR_ERR(pdev)); 307 } 308 #else 309 static inline void omap_init_mbox(void) { } 310 #endif /* CONFIG_OMAP2PLUS_MBOX */ 311 312 static inline void omap_init_sti(void) {} 313 314 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE) 315 316 static struct platform_device omap_pcm = { 317 .name = "omap-pcm-audio", 318 .id = -1, 319 }; 320 321 static void omap_init_audio(void) 322 { 323 platform_device_register(&omap_pcm); 324 } 325 326 #else 327 static inline void omap_init_audio(void) {} 328 #endif 329 330 #if defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI) || \ 331 defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI_MODULE) 332 333 static struct platform_device omap_hdmi_audio = { 334 .name = "omap-hdmi-audio", 335 .id = -1, 336 }; 337 338 static void __init omap_init_hdmi_audio(void) 339 { 340 struct omap_hwmod *oh; 341 struct platform_device *pdev; 342 343 oh = omap_hwmod_lookup("dss_hdmi"); 344 if (!oh) 345 return; 346 347 pdev = omap_device_build("omap-hdmi-audio-dai", -1, oh, NULL, 0); 348 WARN(IS_ERR(pdev), 349 "Can't build omap_device for omap-hdmi-audio-dai.\n"); 350 351 platform_device_register(&omap_hdmi_audio); 352 } 353 #else 354 static inline void omap_init_hdmi_audio(void) {} 355 #endif 356 357 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE) 358 359 #include <linux/platform_data/spi-omap2-mcspi.h> 360 361 static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused) 362 { 363 struct platform_device *pdev; 364 char *name = "omap2_mcspi"; 365 struct omap2_mcspi_platform_config *pdata; 366 static int spi_num; 367 struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr; 368 369 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); 370 if (!pdata) { 371 pr_err("Memory allocation for McSPI device failed\n"); 372 return -ENOMEM; 373 } 374 375 pdata->num_cs = mcspi_attrib->num_chipselect; 376 switch (oh->class->rev) { 377 case OMAP2_MCSPI_REV: 378 case OMAP3_MCSPI_REV: 379 pdata->regs_offset = 0; 380 break; 381 case OMAP4_MCSPI_REV: 382 pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET; 383 break; 384 default: 385 pr_err("Invalid McSPI Revision value\n"); 386 kfree(pdata); 387 return -EINVAL; 388 } 389 390 spi_num++; 391 pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata)); 392 WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n", 393 name, oh->name); 394 kfree(pdata); 395 return 0; 396 } 397 398 static void omap_init_mcspi(void) 399 { 400 omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL); 401 } 402 403 #else 404 static inline void omap_init_mcspi(void) {} 405 #endif 406 407 /** 408 * omap_init_rng - bind the RNG hwmod to the RNG omap_device 409 * 410 * Bind the RNG hwmod to the RNG omap_device. No return value. 411 */ 412 static void omap_init_rng(void) 413 { 414 struct omap_hwmod *oh; 415 struct platform_device *pdev; 416 417 oh = omap_hwmod_lookup("rng"); 418 if (!oh) 419 return; 420 421 pdev = omap_device_build("omap_rng", -1, oh, NULL, 0); 422 WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n"); 423 } 424 425 static void __init omap_init_sham(void) 426 { 427 struct omap_hwmod *oh; 428 struct platform_device *pdev; 429 430 oh = omap_hwmod_lookup("sham"); 431 if (!oh) 432 return; 433 434 pdev = omap_device_build("omap-sham", -1, oh, NULL, 0); 435 WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n"); 436 } 437 438 static void __init omap_init_aes(void) 439 { 440 struct omap_hwmod *oh; 441 struct platform_device *pdev; 442 443 oh = omap_hwmod_lookup("aes"); 444 if (!oh) 445 return; 446 447 pdev = omap_device_build("omap-aes", -1, oh, NULL, 0); 448 WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n"); 449 } 450 451 /*-------------------------------------------------------------------------*/ 452 453 #if defined(CONFIG_VIDEO_OMAP2_VOUT) || \ 454 defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE) 455 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) 456 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = { 457 }; 458 #else 459 static struct resource omap_vout_resource[2] = { 460 }; 461 #endif 462 463 static struct platform_device omap_vout_device = { 464 .name = "omap_vout", 465 .num_resources = ARRAY_SIZE(omap_vout_resource), 466 .resource = &omap_vout_resource[0], 467 .id = -1, 468 }; 469 static void omap_init_vout(void) 470 { 471 if (platform_device_register(&omap_vout_device) < 0) 472 printk(KERN_ERR "Unable to register OMAP-VOUT device\n"); 473 } 474 #else 475 static inline void omap_init_vout(void) {} 476 #endif 477 478 #if IS_ENABLED(CONFIG_WL12XX) 479 480 static struct wl12xx_platform_data wl12xx __initdata; 481 482 void __init omap_init_wl12xx_of(void) 483 { 484 int ret; 485 486 if (!of_have_populated_dt()) 487 return; 488 489 if (of_machine_is_compatible("ti,omap4-sdp")) { 490 wl12xx.board_ref_clock = WL12XX_REFCLOCK_26; 491 wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26; 492 wl12xx.irq = gpio_to_irq(53); 493 } else if (of_machine_is_compatible("ti,omap4-panda")) { 494 wl12xx.board_ref_clock = WL12XX_REFCLOCK_38; 495 wl12xx.irq = gpio_to_irq(53); 496 } else { 497 return; 498 } 499 500 ret = wl12xx_set_platform_data(&wl12xx); 501 if (ret) { 502 pr_err("error setting wl12xx data: %d\n", ret); 503 return; 504 } 505 } 506 #else 507 static inline void omap_init_wl12xx_of(void) 508 { 509 } 510 #endif 511 512 /*-------------------------------------------------------------------------*/ 513 514 static int __init omap2_init_devices(void) 515 { 516 /* Enable dummy states for those platforms without pinctrl support */ 517 if (!of_have_populated_dt()) 518 pinctrl_provide_dummies(); 519 520 /* 521 * please keep these calls, and their implementations above, 522 * in alphabetical order so they're easier to sort through. 523 */ 524 omap_init_audio(); 525 omap_init_camera(); 526 omap_init_hdmi_audio(); 527 omap_init_mbox(); 528 /* If dtb is there, the devices will be created dynamically */ 529 if (!of_have_populated_dt()) { 530 omap_init_mcspi(); 531 omap_init_sham(); 532 omap_init_aes(); 533 omap_init_rng(); 534 } else { 535 /* These can be removed when bindings are done */ 536 omap_init_wl12xx_of(); 537 } 538 omap_init_sti(); 539 omap_init_vout(); 540 541 return 0; 542 } 543 omap_arch_initcall(omap2_init_devices); 544