arch/powerpc/sysdev/fsl_soc.c

   1 /*
   2  * FSL SoC setup code
   3  *
   4  * Maintained by Kumar Gala (see MAINTAINERS for contact information)
   5  *
   6  * 2006 (c) MontaVista Software, Inc.
   7  * Vitaly Bordug <vbordug@ru.mvista.com>
   8  *
   9  * This program is free software; you can redistribute  it and/or modify it
  10  * under  the terms of  the GNU General  Public License as published by the
  11  * Free Software Foundation;  either version 2 of the  License, or (at your
  12  * option) any later version.
  13  */
  14
  15 #include <linux/stddef.h>
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/errno.h>
  19 #include <linux/major.h>
  20 #include <linux/delay.h>
  21 #include <linux/irq.h>
  22 #include <linux/module.h>
  23 #include <linux/device.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/of_platform.h>
  26 #include <linux/phy.h>
  27 #include <linux/phy_fixed.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/fsl_devices.h>
  30 #include <linux/fs_enet_pd.h>
  31 #include <linux/fs_uart_pd.h>
  32
  33 #include <asm/system.h>
  34 #include <asm/atomic.h>
  35 #include <asm/io.h>
  36 #include <asm/irq.h>
  37 #include <asm/time.h>
  38 #include <asm/prom.h>
  39 #include <sysdev/fsl_soc.h>
  40 #include <mm/mmu_decl.h>
  41 #include <asm/cpm2.h>
  42
  43 extern void init_fcc_ioports(struct fs_platform_info*);
  44 extern void init_fec_ioports(struct fs_platform_info*);
  45 extern void init_smc_ioports(struct fs_uart_platform_info*);
  46 static phys_addr_t immrbase = -1;
  47
  48 phys_addr_t get_immrbase(void)
  49 {
  50         struct device_node *soc;
  51
  52         if (immrbase != -1)
  53                 return immrbase;
  54
  55         soc = of_find_node_by_type(NULL, "soc");
  56         if (soc) {
  57                 int size;
  58                 u32 naddr;
  59                 const u32 *prop = of_get_property(soc, "#address-cells", &size);
  60
  61                 if (prop && size == 4)
  62                         naddr = *prop;
  63                 else
  64                         naddr = 2;
  65
  66                 prop = of_get_property(soc, "ranges", &size);
  67                 if (prop)
  68                         immrbase = of_translate_address(soc, prop + naddr);
  69
  70                 of_node_put(soc);
  71         }
  72
  73         return immrbase;
  74 }
  75
  76 EXPORT_SYMBOL(get_immrbase);
  77
  78 static u32 sysfreq = -1;
  79
  80 u32 fsl_get_sys_freq(void)
  81 {
  82         struct device_node *soc;
  83         const u32 *prop;
  84         int size;
  85
  86         if (sysfreq != -1)
  87                 return sysfreq;
  88
  89         soc = of_find_node_by_type(NULL, "soc");
  90         if (!soc)
  91                 return -1;
  92
  93         prop = of_get_property(soc, "clock-frequency", &size);
  94         if (!prop || size != sizeof(*prop) || *prop == 0)
  95                 prop = of_get_property(soc, "bus-frequency", &size);
  96
  97         if (prop && size == sizeof(*prop))
  98                 sysfreq = *prop;
  99
 100         of_node_put(soc);
 101         return sysfreq;
 102 }
 103 EXPORT_SYMBOL(fsl_get_sys_freq);
 104
 105 #if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
 106
 107 static u32 brgfreq = -1;
 108
 109 u32 get_brgfreq(void)
 110 {
 111         struct device_node *node;
 112         const unsigned int *prop;
 113         int size;
 114
 115         if (brgfreq != -1)
 116                 return brgfreq;
 117
 118         node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
 119         if (node) {
 120                 prop = of_get_property(node, "clock-frequency", &size);
 121                 if (prop && size == 4)
 122                         brgfreq = *prop;
 123
 124                 of_node_put(node);
 125                 return brgfreq;
 126         }
 127
 128         /* Legacy device binding -- will go away when no users are left. */
 129         node = of_find_node_by_type(NULL, "cpm");
 130         if (!node)
 131                 node = of_find_compatible_node(NULL, NULL, "fsl,qe");
 132         if (!node)
 133                 node = of_find_node_by_type(NULL, "qe");
 134
 135         if (node) {
 136                 prop = of_get_property(node, "brg-frequency", &size);
 137                 if (prop && size == 4)
 138                         brgfreq = *prop;
 139
 140                 if (brgfreq == -1 || brgfreq == 0) {
 141                         prop = of_get_property(node, "bus-frequency", &size);
 142                         if (prop && size == 4)
 143                                 brgfreq = *prop / 2;
 144                 }
 145                 of_node_put(node);
 146         }
 147
 148         return brgfreq;
 149 }
 150
 151 EXPORT_SYMBOL(get_brgfreq);
 152
 153 static u32 fs_baudrate = -1;
 154
 155 u32 get_baudrate(void)
 156 {
 157         struct device_node *node;
 158
 159         if (fs_baudrate != -1)
 160                 return fs_baudrate;
 161
 162         node = of_find_node_by_type(NULL, "serial");
 163         if (node) {
 164                 int size;
 165                 const unsigned int *prop = of_get_property(node,
 166                                 "current-speed", &size);
 167
 168                 if (prop)
 169                         fs_baudrate = *prop;
 170                 of_node_put(node);
 171         }
 172
 173         return fs_baudrate;
 174 }
 175
 176 EXPORT_SYMBOL(get_baudrate);
 177 #endif /* CONFIG_CPM2 */
 178
 179 #ifdef CONFIG_FIXED_PHY
 180 static int __init of_add_fixed_phys(void)
 181 {
 182         int ret;
 183         struct device_node *np;
 184         u32 *fixed_link;
 185         struct fixed_phy_status status = {};
 186
 187         for_each_node_by_name(np, "ethernet") {
 188                 fixed_link  = (u32 *)of_get_property(np, "fixed-link", NULL);
 189                 if (!fixed_link)
 190                         continue;
 191
 192                 status.link = 1;
 193                 status.duplex = fixed_link[1];
 194                 status.speed = fixed_link[2];
 195                 status.pause = fixed_link[3];
 196                 status.asym_pause = fixed_link[4];
 197
 198                 ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status);
 199                 if (ret) {
 200                         of_node_put(np);
 201                         return ret;
 202                 }
 203         }
 204
 205         return 0;
 206 }
 207 arch_initcall(of_add_fixed_phys);
 208 #endif /* CONFIG_FIXED_PHY */
 209
 210 static int __init gfar_mdio_of_init(void)
 211 {
 212         struct device_node *np = NULL;
 213         struct platform_device *mdio_dev;
 214         struct resource res;
 215         int ret;
 216
 217         np = of_find_compatible_node(np, NULL, "fsl,gianfar-mdio");
 218
 219         /* try the deprecated version */
 220         if (!np)
 221                 np = of_find_compatible_node(np, "mdio", "gianfar");
 222
 223         if (np) {
 224                 int k;
 225                 struct device_node *child = NULL;
 226                 struct gianfar_mdio_data mdio_data;
 227
 228                 memset(&res, 0, sizeof(res));
 229                 memset(&mdio_data, 0, sizeof(mdio_data));
 230
 231                 ret = of_address_to_resource(np, 0, &res);
 232                 if (ret)
 233                         goto err;
 234
 235                 mdio_dev =
 236                     platform_device_register_simple("fsl-gianfar_mdio",
 237                                                     res.start, &res, 1);
 238                 if (IS_ERR(mdio_dev)) {
 239                         ret = PTR_ERR(mdio_dev);
 240                         goto err;
 241                 }
 242
 243                 for (k = 0; k < 32; k++)
 244                         mdio_data.irq[k] = PHY_POLL;
 245
 246                 while ((child = of_get_next_child(np, child)) != NULL) {
 247                         int irq = irq_of_parse_and_map(child, 0);
 248                         if (irq != NO_IRQ) {
 249                                 const u32 *id = of_get_property(child,
 250                                                         "reg", NULL);
 251                                 mdio_data.irq[*id] = irq;
 252                         }
 253                 }
 254
 255                 ret =
 256                     platform_device_add_data(mdio_dev, &mdio_data,
 257                                              sizeof(struct gianfar_mdio_data));
 258                 if (ret)
 259                         goto unreg;
 260         }
 261
 262         of_node_put(np);
 263         return 0;
 264
 265 unreg:
 266         platform_device_unregister(mdio_dev);
 267 err:
 268         of_node_put(np);
 269         return ret;
 270 }
 271
 272 arch_initcall(gfar_mdio_of_init);
 273
 274 static const char *gfar_tx_intr = "tx";
 275 static const char *gfar_rx_intr = "rx";
 276 static const char *gfar_err_intr = "error";
 277
 278 static int __init gfar_of_init(void)
 279 {
 280         struct device_node *np;
 281         unsigned int i;
 282         struct platform_device *gfar_dev;
 283         struct resource res;
 284         int ret;
 285
 286         for (np = NULL, i = 0;
 287              (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
 288              i++) {
 289                 struct resource r[4];
 290                 struct device_node *phy, *mdio;
 291                 struct gianfar_platform_data gfar_data;
 292                 const unsigned int *id;
 293                 const char *model;
 294                 const char *ctype;
 295                 const void *mac_addr;
 296                 const phandle *ph;
 297                 int n_res = 2;
 298
 299                 memset(r, 0, sizeof(r));
 300                 memset(&gfar_data, 0, sizeof(gfar_data));
 301
 302                 ret = of_address_to_resource(np, 0, &r[0]);
 303                 if (ret)
 304                         goto err;
 305
 306                 of_irq_to_resource(np, 0, &r[1]);
 307
 308                 model = of_get_property(np, "model", NULL);
 309
 310                 /* If we aren't the FEC we have multiple interrupts */
 311                 if (model && strcasecmp(model, "FEC")) {
 312                         r[1].name = gfar_tx_intr;
 313
 314                         r[2].name = gfar_rx_intr;
 315                         of_irq_to_resource(np, 1, &r[2]);
 316
 317                         r[3].name = gfar_err_intr;
 318                         of_irq_to_resource(np, 2, &r[3]);
 319
 320                         n_res += 2;
 321                 }
 322
 323                 gfar_dev =
 324                     platform_device_register_simple("fsl-gianfar", i, &r[0],
 325                                                     n_res);
 326
 327                 if (IS_ERR(gfar_dev)) {
 328                         ret = PTR_ERR(gfar_dev);
 329                         goto err;
 330                 }
 331
 332                 mac_addr = of_get_mac_address(np);
 333                 if (mac_addr)
 334                         memcpy(gfar_data.mac_addr, mac_addr, 6);
 335
 336                 if (model && !strcasecmp(model, "TSEC"))
 337                         gfar_data.device_flags =
 338                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 339                             FSL_GIANFAR_DEV_HAS_COALESCE |
 340                             FSL_GIANFAR_DEV_HAS_RMON |
 341                             FSL_GIANFAR_DEV_HAS_MULTI_INTR;
 342                 if (model && !strcasecmp(model, "eTSEC"))
 343                         gfar_data.device_flags =
 344                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 345                             FSL_GIANFAR_DEV_HAS_COALESCE |
 346                             FSL_GIANFAR_DEV_HAS_RMON |
 347                             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
 348                             FSL_GIANFAR_DEV_HAS_CSUM |
 349                             FSL_GIANFAR_DEV_HAS_VLAN |
 350                             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 351
 352                 ctype = of_get_property(np, "phy-connection-type", NULL);
 353
 354                 /* We only care about rgmii-id.  The rest are autodetected */
 355                 if (ctype && !strcmp(ctype, "rgmii-id"))
 356                         gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID;
 357                 else
 358                         gfar_data.interface = PHY_INTERFACE_MODE_MII;
 359
 360                 ph = of_get_property(np, "phy-handle", NULL);
 361                 if (ph == NULL) {
 362                         u32 *fixed_link;
 363
 364                         fixed_link = (u32 *)of_get_property(np, "fixed-link",
 365                                                            NULL);
 366                         if (!fixed_link) {
 367                                 ret = -ENODEV;
 368                                 goto unreg;
 369                         }
 370
 371                         snprintf(gfar_data.bus_id, MII_BUS_ID_SIZE, "0");
 372                         gfar_data.phy_id = fixed_link[0];
 373                 } else {
 374                         phy = of_find_node_by_phandle(*ph);
 375
 376                         if (phy == NULL) {
 377                                 ret = -ENODEV;
 378                                 goto unreg;
 379                         }
 380
 381                         mdio = of_get_parent(phy);
 382
 383                         id = of_get_property(phy, "reg", NULL);
 384                         ret = of_address_to_resource(mdio, 0, &res);
 385                         if (ret) {
 386                                 of_node_put(phy);
 387                                 of_node_put(mdio);
 388                                 goto unreg;
 389                         }
 390
 391                         gfar_data.phy_id = *id;
 392                         snprintf(gfar_data.bus_id, MII_BUS_ID_SIZE, "%llx",
 393                                  (unsigned long long)res.start);
 394
 395                         of_node_put(phy);
 396                         of_node_put(mdio);
 397                 }
 398
 399                 ret =
 400                     platform_device_add_data(gfar_dev, &gfar_data,
 401                                              sizeof(struct
 402                                                     gianfar_platform_data));
 403                 if (ret)
 404                         goto unreg;
 405         }
 406
 407         return 0;
 408
 409 unreg:
 410         platform_device_unregister(gfar_dev);
 411 err:
 412         return ret;
 413 }
 414
 415 arch_initcall(gfar_of_init);
 416
 417 #ifdef CONFIG_I2C_BOARDINFO
 418 #include <linux/i2c.h>
 419 struct i2c_driver_device {
 420         char    *of_device;
 421         char    *i2c_type;
 422 };
 423
 424 static struct i2c_driver_device i2c_devices[] __initdata = {
 425         {"ricoh,rs5c372a", "rs5c372a"},
 426         {"ricoh,rs5c372b", "rs5c372b"},
 427         {"ricoh,rv5c386",  "rv5c386"},
 428         {"ricoh,rv5c387a", "rv5c387a"},
 429         {"dallas,ds1307",  "ds1307"},
 430         {"dallas,ds1337",  "ds1337"},
 431         {"dallas,ds1338",  "ds1338"},
 432         {"dallas,ds1339",  "ds1339"},
 433         {"dallas,ds1340",  "ds1340"},
 434         {"stm,m41t00",     "m41t00"},
 435         {"dallas,ds1374",  "ds1374"},
 436         {"cirrus,cs4270",  "cs4270"},
 437 };
 438
 439 static int __init of_find_i2c_driver(struct device_node *node,
 440                                      struct i2c_board_info *info)
 441 {
 442         int i;
 443
 444         for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
 445                 if (!of_device_is_compatible(node, i2c_devices[i].of_device))
 446                         continue;
 447                 if (strlcpy(info->type, i2c_devices[i].i2c_type,
 448                             I2C_NAME_SIZE) >= I2C_NAME_SIZE)
 449                         return -ENOMEM;
 450                 return 0;
 451         }
 452
 453         pr_warning("fsl_soc.c: unrecognized i2c node %s\n",
 454                 (const char *) of_get_property(node, "compatible", NULL));
 455
 456         return -ENODEV;
 457 }
 458
 459 static void __init of_register_i2c_devices(struct device_node *adap_node,
 460                                            int bus_num)
 461 {
 462         struct device_node *node = NULL;
 463
 464         while ((node = of_get_next_child(adap_node, node))) {
 465                 struct i2c_board_info info = {};
 466                 const u32 *addr;
 467                 int len;
 468
 469                 addr = of_get_property(node, "reg", &len);
 470                 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
 471                         printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
 472                         continue;
 473                 }
 474
 475                 info.irq = irq_of_parse_and_map(node, 0);
 476                 if (info.irq == NO_IRQ)
 477                         info.irq = -1;
 478
 479                 if (of_find_i2c_driver(node, &info) < 0)
 480                         continue;
 481
 482                 info.addr = *addr;
 483
 484                 i2c_register_board_info(bus_num, &info, 1);
 485         }
 486 }
 487
 488 static int __init fsl_i2c_of_init(void)
 489 {
 490         struct device_node *np;
 491         unsigned int i = 0;
 492         struct platform_device *i2c_dev;
 493         int ret;
 494
 495         for_each_compatible_node(np, NULL, "fsl-i2c") {
 496                 struct resource r[2];
 497                 struct fsl_i2c_platform_data i2c_data;
 498                 const unsigned char *flags = NULL;
 499                 int idx;
 500                 const u32 *iprop;
 501
 502                 memset(&r, 0, sizeof(r));
 503                 memset(&i2c_data, 0, sizeof(i2c_data));
 504
 505                 ret = of_address_to_resource(np, 0, &r[0]);
 506                 if (ret)
 507                         goto err;
 508
 509                 of_irq_to_resource(np, 0, &r[1]);
 510
 511                 iprop = of_get_property(np, "cell-index", NULL);
 512                 idx = iprop ? *iprop : i;
 513
 514                 i2c_dev = platform_device_register_simple("fsl-i2c", idx, r, 2);
 515                 if (IS_ERR(i2c_dev)) {
 516                         ret = PTR_ERR(i2c_dev);
 517                         goto err;
 518                 }
 519
 520                 i2c_data.device_flags = 0;
 521                 flags = of_get_property(np, "dfsrr", NULL);
 522                 if (flags)
 523                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 524
 525                 flags = of_get_property(np, "fsl5200-clocking", NULL);
 526                 if (flags)
 527                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 528
 529                 ret =
 530                     platform_device_add_data(i2c_dev, &i2c_data,
 531                                              sizeof(struct
 532                                                     fsl_i2c_platform_data));
 533                 if (ret)
 534                         goto unreg;
 535
 536                 of_register_i2c_devices(np, idx);
 537                 i++;
 538         }
 539
 540         return 0;
 541
 542 unreg:
 543         platform_device_unregister(i2c_dev);
 544 err:
 545         return ret;
 546 }
 547
 548 arch_initcall(fsl_i2c_of_init);
 549 #endif
 550
 551 #ifdef CONFIG_PPC_83xx
 552 static int __init mpc83xx_wdt_init(void)
 553 {
 554         struct resource r;
 555         struct device_node *np;
 556         struct platform_device *dev;
 557         u32 freq = fsl_get_sys_freq();
 558         int ret;
 559
 560         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 561
 562         if (!np) {
 563                 ret = -ENODEV;
 564                 goto nodev;
 565         }
 566
 567         memset(&r, 0, sizeof(r));
 568
 569         ret = of_address_to_resource(np, 0, &r);
 570         if (ret)
 571                 goto err;
 572
 573         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 574         if (IS_ERR(dev)) {
 575                 ret = PTR_ERR(dev);
 576                 goto err;
 577         }
 578
 579         ret = platform_device_add_data(dev, &freq, sizeof(freq));
 580         if (ret)
 581                 goto unreg;
 582
 583         of_node_put(np);
 584         return 0;
 585
 586 unreg:
 587         platform_device_unregister(dev);
 588 err:
 589         of_node_put(np);
 590 nodev:
 591         return ret;
 592 }
 593
 594 arch_initcall(mpc83xx_wdt_init);
 595 #endif
 596
 597 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 598 {
 599         if (!phy_type)
 600                 return FSL_USB2_PHY_NONE;
 601         if (!strcasecmp(phy_type, "ulpi"))
 602                 return FSL_USB2_PHY_ULPI;
 603         if (!strcasecmp(phy_type, "utmi"))
 604                 return FSL_USB2_PHY_UTMI;
 605         if (!strcasecmp(phy_type, "utmi_wide"))
 606                 return FSL_USB2_PHY_UTMI_WIDE;
 607         if (!strcasecmp(phy_type, "serial"))
 608                 return FSL_USB2_PHY_SERIAL;
 609
 610         return FSL_USB2_PHY_NONE;
 611 }
 612
 613 static int __init fsl_usb_of_init(void)
 614 {
 615         struct device_node *np;
 616         unsigned int i = 0;
 617         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
 618                 *usb_dev_dr_client = NULL;
 619         int ret;
 620
 621         for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
 622                 struct resource r[2];
 623                 struct fsl_usb2_platform_data usb_data;
 624                 const unsigned char *prop = NULL;
 625
 626                 memset(&r, 0, sizeof(r));
 627                 memset(&usb_data, 0, sizeof(usb_data));
 628
 629                 ret = of_address_to_resource(np, 0, &r[0]);
 630                 if (ret)
 631                         goto err;
 632
 633                 of_irq_to_resource(np, 0, &r[1]);
 634
 635                 usb_dev_mph =
 636                     platform_device_register_simple("fsl-ehci", i, r, 2);
 637                 if (IS_ERR(usb_dev_mph)) {
 638                         ret = PTR_ERR(usb_dev_mph);
 639                         goto err;
 640                 }
 641
 642                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 643                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 644
 645                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 646
 647                 prop = of_get_property(np, "port0", NULL);
 648                 if (prop)
 649                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 650
 651                 prop = of_get_property(np, "port1", NULL);
 652                 if (prop)
 653                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 654
 655                 prop = of_get_property(np, "phy_type", NULL);
 656                 usb_data.phy_mode = determine_usb_phy(prop);
 657
 658                 ret =
 659                     platform_device_add_data(usb_dev_mph, &usb_data,
 660                                              sizeof(struct
 661                                                     fsl_usb2_platform_data));
 662                 if (ret)
 663                         goto unreg_mph;
 664                 i++;
 665         }
 666
 667         for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
 668                 struct resource r[2];
 669                 struct fsl_usb2_platform_data usb_data;
 670                 const unsigned char *prop = NULL;
 671
 672                 memset(&r, 0, sizeof(r));
 673                 memset(&usb_data, 0, sizeof(usb_data));
 674
 675                 ret = of_address_to_resource(np, 0, &r[0]);
 676                 if (ret)
 677                         goto unreg_mph;
 678
 679                 of_irq_to_resource(np, 0, &r[1]);
 680
 681                 prop = of_get_property(np, "dr_mode", NULL);
 682
 683                 if (!prop || !strcmp(prop, "host")) {
 684                         usb_data.operating_mode = FSL_USB2_DR_HOST;
 685                         usb_dev_dr_host = platform_device_register_simple(
 686                                         "fsl-ehci", i, r, 2);
 687                         if (IS_ERR(usb_dev_dr_host)) {
 688                                 ret = PTR_ERR(usb_dev_dr_host);
 689                                 goto err;
 690                         }
 691                 } else if (prop && !strcmp(prop, "peripheral")) {
 692                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
 693                         usb_dev_dr_client = platform_device_register_simple(
 694                                         "fsl-usb2-udc", i, r, 2);
 695                         if (IS_ERR(usb_dev_dr_client)) {
 696                                 ret = PTR_ERR(usb_dev_dr_client);
 697                                 goto err;
 698                         }
 699                 } else if (prop && !strcmp(prop, "otg")) {
 700                         usb_data.operating_mode = FSL_USB2_DR_OTG;
 701                         usb_dev_dr_host = platform_device_register_simple(
 702                                         "fsl-ehci", i, r, 2);
 703                         if (IS_ERR(usb_dev_dr_host)) {
 704                                 ret = PTR_ERR(usb_dev_dr_host);
 705                                 goto err;
 706                         }
 707                         usb_dev_dr_client = platform_device_register_simple(
 708                                         "fsl-usb2-udc", i, r, 2);
 709                         if (IS_ERR(usb_dev_dr_client)) {
 710                                 ret = PTR_ERR(usb_dev_dr_client);
 711                                 goto err;
 712                         }
 713                 } else {
 714                         ret = -EINVAL;
 715                         goto err;
 716                 }
 717
 718                 prop = of_get_property(np, "phy_type", NULL);
 719                 usb_data.phy_mode = determine_usb_phy(prop);
 720
 721                 if (usb_dev_dr_host) {
 722                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
 723                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
 724                                 dev.coherent_dma_mask;
 725                         if ((ret = platform_device_add_data(usb_dev_dr_host,
 726                                                 &usb_data, sizeof(struct
 727                                                 fsl_usb2_platform_data))))
 728                                 goto unreg_dr;
 729                 }
 730                 if (usb_dev_dr_client) {
 731                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
 732                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
 733                                 dev.coherent_dma_mask;
 734                         if ((ret = platform_device_add_data(usb_dev_dr_client,
 735                                                 &usb_data, sizeof(struct
 736                                                 fsl_usb2_platform_data))))
 737                                 goto unreg_dr;
 738                 }
 739                 i++;
 740         }
 741         return 0;
 742
 743 unreg_dr:
 744         if (usb_dev_dr_host)
 745                 platform_device_unregister(usb_dev_dr_host);
 746         if (usb_dev_dr_client)
 747                 platform_device_unregister(usb_dev_dr_client);
 748 unreg_mph:
 749         if (usb_dev_mph)
 750                 platform_device_unregister(usb_dev_mph);
 751 err:
 752         return ret;
 753 }
 754
 755 arch_initcall(fsl_usb_of_init);
 756
 757 static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
 758                                    struct spi_board_info *board_infos,
 759                                    unsigned int num_board_infos,
 760                                    void (*activate_cs)(u8 cs, u8 polarity),
 761                                    void (*deactivate_cs)(u8 cs, u8 polarity))
 762 {
 763         struct device_node *np;
 764         unsigned int i = 0;
 765
 766         for_each_compatible_node(np, type, compatible) {
 767                 int ret;
 768                 unsigned int j;
 769                 const void *prop;
 770                 struct resource res[2];
 771                 struct platform_device *pdev;
 772                 struct fsl_spi_platform_data pdata = {
 773                         .activate_cs = activate_cs,
 774                         .deactivate_cs = deactivate_cs,
 775                 };
 776
 777                 memset(res, 0, sizeof(res));
 778
 779                 pdata.sysclk = sysclk;
 780
 781                 prop = of_get_property(np, "reg", NULL);
 782                 if (!prop)
 783                         goto err;
 784                 pdata.bus_num = *(u32 *)prop;
 785
 786                 prop = of_get_property(np, "cell-index", NULL);
 787                 if (prop)
 788                         i = *(u32 *)prop;
 789
 790                 prop = of_get_property(np, "mode", NULL);
 791                 if (prop && !strcmp(prop, "cpu-qe"))
 792                         pdata.qe_mode = 1;
 793
 794                 for (j = 0; j < num_board_infos; j++) {
 795                         if (board_infos[j].bus_num == pdata.bus_num)
 796                                 pdata.max_chipselect++;
 797                 }
 798
 799                 if (!pdata.max_chipselect)
 800                         continue;
 801
 802                 ret = of_address_to_resource(np, 0, &res[0]);
 803                 if (ret)
 804                         goto err;
 805
 806                 ret = of_irq_to_resource(np, 0, &res[1]);
 807                 if (ret == NO_IRQ)
 808                         goto err;
 809
 810                 pdev = platform_device_alloc("mpc83xx_spi", i);
 811                 if (!pdev)
 812                         goto err;
 813
 814                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
 815                 if (ret)
 816                         goto unreg;
 817
 818                 ret = platform_device_add_resources(pdev, res,
 819                                                     ARRAY_SIZE(res));
 820                 if (ret)
 821                         goto unreg;
 822
 823                 ret = platform_device_add(pdev);
 824                 if (ret)
 825                         goto unreg;
 826
 827                 goto next;
 828 unreg:
 829                 platform_device_del(pdev);
 830 err:
 831                 pr_err("%s: registration failed\n", np->full_name);
 832 next:
 833                 i++;
 834         }
 835
 836         return i;
 837 }
 838
 839 int __init fsl_spi_init(struct spi_board_info *board_infos,
 840                         unsigned int num_board_infos,
 841                         void (*activate_cs)(u8 cs, u8 polarity),
 842                         void (*deactivate_cs)(u8 cs, u8 polarity))
 843 {
 844         u32 sysclk = -1;
 845         int ret;
 846
 847 #ifdef CONFIG_QUICC_ENGINE
 848         /* SPI controller is either clocked from QE or SoC clock */
 849         sysclk = get_brgfreq();
 850 #endif
 851         if (sysclk == -1) {
 852                 sysclk = fsl_get_sys_freq();
 853                 if (sysclk == -1)
 854                         return -ENODEV;
 855         }
 856
 857         ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
 858                                num_board_infos, activate_cs, deactivate_cs);
 859         if (!ret)
 860                 of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
 861                                  num_board_infos, activate_cs, deactivate_cs);
 862
 863         return spi_register_board_info(board_infos, num_board_infos);
 864 }
 865
 866 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
 867 static __be32 __iomem *rstcr;
 868
 869 static int __init setup_rstcr(void)
 870 {
 871         struct device_node *np;
 872         np = of_find_node_by_name(NULL, "global-utilities");
 873         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
 874                 const u32 *prop = of_get_property(np, "reg", NULL);
 875                 if (prop) {
 876                         /* map reset control register
 877                          * 0xE00B0 is offset of reset control register
 878                          */
 879                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
 880                         if (!rstcr)
 881                                 printk (KERN_EMERG "Error: reset control "
 882                                                 "register not mapped!\n");
 883                 }
 884         } else
 885                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
 886         if (np)
 887                 of_node_put(np);
 888         return 0;
 889 }
 890
 891 arch_initcall(setup_rstcr);
 892
 893 void fsl_rstcr_restart(char *cmd)
 894 {
 895         local_irq_disable();
 896         if (rstcr)
 897                 /* set reset control register */
 898                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
 899
 900         while (1) ;
 901 }
 902 #endif
 903
 904 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
 905 struct platform_diu_data_ops diu_ops = {
 906         .diu_size = 1280 * 1024 * 4,    /* default one 1280x1024 buffer */
 907 };
 908 EXPORT_SYMBOL(diu_ops);
 909
 910 int __init preallocate_diu_videomemory(void)
 911 {
 912         pr_debug("diu_size=%lu\n", diu_ops.diu_size);
 913
 914         diu_ops.diu_mem = __alloc_bootmem(diu_ops.diu_size, 8, 0);
 915         if (!diu_ops.diu_mem) {
 916                 printk(KERN_ERR "fsl-diu: cannot allocate %lu bytes\n",
 917                         diu_ops.diu_size);
 918                 return -ENOMEM;
 919         }
 920
 921         pr_debug("diu_mem=%p\n", diu_ops.diu_mem);
 922
 923         rh_init(&diu_ops.diu_rh_info, 4096, ARRAY_SIZE(diu_ops.diu_rh_block),
 924                 diu_ops.diu_rh_block);
 925         return rh_attach_region(&diu_ops.diu_rh_info,
 926                                 (unsigned long) diu_ops.diu_mem,
 927                                 diu_ops.diu_size);
 928 }
 929
 930 static int __init early_parse_diufb(char *p)
 931 {
 932         if (!p)
 933                 return 1;
 934
 935         diu_ops.diu_size = _ALIGN_UP(memparse(p, &p), 8);
 936
 937         pr_debug("diu_size=%lu\n", diu_ops.diu_size);
 938
 939         return 0;
 940 }
 941 early_param("diufb", early_parse_diufb);
 942
 943 #endif