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