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/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
  42static 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}
  68omap_postcore_initcall(omap3_l3_init);
  69
  70#if defined(CONFIG_IOMMU_API)
  71
  72#include <linux/platform_data/iommu-omap.h>
  73
  74static 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
 161static struct platform_device omap3isp_device = {
 162        .name           = "omap3isp",
 163        .id             = -1,
 164        .num_resources  = ARRAY_SIZE(omap3isp_resources),
 165        .resource       = omap3isp_resources,
 166};
 167
 168static struct omap_iommu_arch_data omap3_isp_iommu = {
 169        .name = "mmu_isp",
 170};
 171
 172int 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
 185int 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)
 193static 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
 215static inline void omap_init_mbox(void) { }
 216#endif /* CONFIG_OMAP2PLUS_MBOX */
 217
 218static inline void omap_init_sti(void) {}
 219
 220#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
 221
 222static struct platform_device omap_pcm = {
 223        .name   = "omap-pcm-audio",
 224        .id     = -1,
 225};
 226
 227static void omap_init_audio(void)
 228{
 229        platform_device_register(&omap_pcm);
 230}
 231
 232#else
 233static 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
 240static 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
 277static void omap_init_mcspi(void)
 278{
 279        omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
 280}
 281
 282#else
 283static 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 */
 291static 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
 304static 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
 317static 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)
 335static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
 336};
 337#else
 338static struct resource omap_vout_resource[2] = {
 339};
 340#endif
 341
 342static 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
 349int __init omap_init_vout(void)
 350{
 351        return platform_device_register(&omap_vout_device);
 352}
 353#else
 354int __init omap_init_vout(void) { return 0; }
 355#endif
 356
 357/*-------------------------------------------------------------------------*/
 358
 359static 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}
 382omap_arch_initcall(omap2_init_devices);
 383
 384static 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}
 408omap_postcore_initcall(omap_gpmc_init);
 409