linux/arch/arm/mach-omap2/devices.c
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   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
  44static 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}
  70omap_postcore_initcall(omap3_l3_init);
  71
  72static 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}
 104omap_postcore_initcall(omap4_l3_init);
 105
 106#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 107
 108static 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
 120static 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
 132static 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
 219static struct platform_device omap3isp_device = {
 220        .name           = "omap3isp",
 221        .id             = -1,
 222        .num_resources  = ARRAY_SIZE(omap3isp_resources),
 223        .resource       = omap3isp_resources,
 224};
 225
 226static struct omap_iommu_arch_data omap3_isp_iommu = {
 227        .name = "mmu_isp",
 228};
 229
 230int 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
 240int omap3_init_camera(struct isp_platform_data *pdata)
 241{
 242        return 0;
 243}
 244
 245#endif
 246
 247static 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
 255int __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)
 287static 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
 309static inline void omap_init_mbox(void) { }
 310#endif /* CONFIG_OMAP2PLUS_MBOX */
 311
 312static inline void omap_init_sti(void) {}
 313
 314#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
 315
 316static struct platform_device omap_pcm = {
 317        .name   = "omap-pcm-audio",
 318        .id     = -1,
 319};
 320
 321static void omap_init_audio(void)
 322{
 323        platform_device_register(&omap_pcm);
 324}
 325
 326#else
 327static 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
 333static struct platform_device omap_hdmi_audio = {
 334        .name   = "omap-hdmi-audio",
 335        .id     = -1,
 336};
 337
 338static 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
 354static 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
 361static 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
 398static void omap_init_mcspi(void)
 399{
 400        omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
 401}
 402
 403#else
 404static 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 */
 412static 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
 425static 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
 438static 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)
 456static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
 457};
 458#else
 459static struct resource omap_vout_resource[2] = {
 460};
 461#endif
 462
 463static 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
 470int __init omap_init_vout(void)
 471{
 472        return platform_device_register(&omap_vout_device);
 473}
 474#else
 475int __init omap_init_vout(void) { return 0; }
 476#endif
 477
 478/*-------------------------------------------------------------------------*/
 479
 480static int __init omap2_init_devices(void)
 481{
 482        /* Enable dummy states for those platforms without pinctrl support */
 483        if (!of_have_populated_dt())
 484                pinctrl_provide_dummies();
 485
 486        /*
 487         * please keep these calls, and their implementations above,
 488         * in alphabetical order so they're easier to sort through.
 489         */
 490        omap_init_audio();
 491        omap_init_camera();
 492        omap_init_hdmi_audio();
 493        omap_init_mbox();
 494        /* If dtb is there, the devices will be created dynamically */
 495        if (!of_have_populated_dt()) {
 496                omap_init_mcspi();
 497                omap_init_sham();
 498                omap_init_aes();
 499                omap_init_rng();
 500        }
 501        omap_init_sti();
 502
 503        return 0;
 504}
 505omap_arch_initcall(omap2_init_devices);
 506