arch/arm/mach-omap2/devices.c

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