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, "%x",
 393                                         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_driver;
 422         char    *i2c_type;
 423 };
 424
 425 static struct i2c_driver_device i2c_devices[] __initdata = {
 426         {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
 427         {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
 428         {"ricoh,rv5c386",  "rtc-rs5c372", "rv5c386",},
 429         {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
 430         {"dallas,ds1307",  "rtc-ds1307",  "ds1307",},
 431         {"dallas,ds1337",  "rtc-ds1307",  "ds1337",},
 432         {"dallas,ds1338",  "rtc-ds1307",  "ds1338",},
 433         {"dallas,ds1339",  "rtc-ds1307",  "ds1339",},
 434         {"dallas,ds1340",  "rtc-ds1307",  "ds1340",},
 435         {"stm,m41t00",     "rtc-ds1307",  "m41t00"},
 436         {"dallas,ds1374",  "rtc-ds1374",  "rtc-ds1374",},
 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->driver_name, i2c_devices[i].i2c_driver,
 448                             KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
 449                     strlcpy(info->type, i2c_devices[i].i2c_type,
 450                             I2C_NAME_SIZE) >= I2C_NAME_SIZE)
 451                         return -ENOMEM;
 452                 return 0;
 453         }
 454         return -ENODEV;
 455 }
 456
 457 static void __init of_register_i2c_devices(struct device_node *adap_node,
 458                                            int bus_num)
 459 {
 460         struct device_node *node = NULL;
 461
 462         while ((node = of_get_next_child(adap_node, node))) {
 463                 struct i2c_board_info info = {};
 464                 const u32 *addr;
 465                 int len;
 466
 467                 addr = of_get_property(node, "reg", &len);
 468                 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
 469                         printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
 470                         continue;
 471                 }
 472
 473                 info.irq = irq_of_parse_and_map(node, 0);
 474                 if (info.irq == NO_IRQ)
 475                         info.irq = -1;
 476
 477                 if (of_find_i2c_driver(node, &info) < 0)
 478                         continue;
 479
 480                 info.addr = *addr;
 481
 482                 i2c_register_board_info(bus_num, &info, 1);
 483         }
 484 }
 485
 486 static int __init fsl_i2c_of_init(void)
 487 {
 488         struct device_node *np;
 489         unsigned int i = 0;
 490         struct platform_device *i2c_dev;
 491         int ret;
 492
 493         for_each_compatible_node(np, NULL, "fsl-i2c") {
 494                 struct resource r[2];
 495                 struct fsl_i2c_platform_data i2c_data;
 496                 const unsigned char *flags = NULL;
 497
 498                 memset(&r, 0, sizeof(r));
 499                 memset(&i2c_data, 0, sizeof(i2c_data));
 500
 501                 ret = of_address_to_resource(np, 0, &r[0]);
 502                 if (ret)
 503                         goto err;
 504
 505                 of_irq_to_resource(np, 0, &r[1]);
 506
 507                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 508                 if (IS_ERR(i2c_dev)) {
 509                         ret = PTR_ERR(i2c_dev);
 510                         goto err;
 511                 }
 512
 513                 i2c_data.device_flags = 0;
 514                 flags = of_get_property(np, "dfsrr", NULL);
 515                 if (flags)
 516                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 517
 518                 flags = of_get_property(np, "fsl5200-clocking", NULL);
 519                 if (flags)
 520                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 521
 522                 ret =
 523                     platform_device_add_data(i2c_dev, &i2c_data,
 524                                              sizeof(struct
 525                                                     fsl_i2c_platform_data));
 526                 if (ret)
 527                         goto unreg;
 528
 529                 of_register_i2c_devices(np, i++);
 530         }
 531
 532         return 0;
 533
 534 unreg:
 535         platform_device_unregister(i2c_dev);
 536 err:
 537         return ret;
 538 }
 539
 540 arch_initcall(fsl_i2c_of_init);
 541 #endif
 542
 543 #ifdef CONFIG_PPC_83xx
 544 static int __init mpc83xx_wdt_init(void)
 545 {
 546         struct resource r;
 547         struct device_node *np;
 548         struct platform_device *dev;
 549         u32 freq = fsl_get_sys_freq();
 550         int ret;
 551
 552         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 553
 554         if (!np) {
 555                 ret = -ENODEV;
 556                 goto nodev;
 557         }
 558
 559         memset(&r, 0, sizeof(r));
 560
 561         ret = of_address_to_resource(np, 0, &r);
 562         if (ret)
 563                 goto err;
 564
 565         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 566         if (IS_ERR(dev)) {
 567                 ret = PTR_ERR(dev);
 568                 goto err;
 569         }
 570
 571         ret = platform_device_add_data(dev, &freq, sizeof(freq));
 572         if (ret)
 573                 goto unreg;
 574
 575         of_node_put(np);
 576         return 0;
 577
 578 unreg:
 579         platform_device_unregister(dev);
 580 err:
 581         of_node_put(np);
 582 nodev:
 583         return ret;
 584 }
 585
 586 arch_initcall(mpc83xx_wdt_init);
 587 #endif
 588
 589 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 590 {
 591         if (!phy_type)
 592                 return FSL_USB2_PHY_NONE;
 593         if (!strcasecmp(phy_type, "ulpi"))
 594                 return FSL_USB2_PHY_ULPI;
 595         if (!strcasecmp(phy_type, "utmi"))
 596                 return FSL_USB2_PHY_UTMI;
 597         if (!strcasecmp(phy_type, "utmi_wide"))
 598                 return FSL_USB2_PHY_UTMI_WIDE;
 599         if (!strcasecmp(phy_type, "serial"))
 600                 return FSL_USB2_PHY_SERIAL;
 601
 602         return FSL_USB2_PHY_NONE;
 603 }
 604
 605 static int __init fsl_usb_of_init(void)
 606 {
 607         struct device_node *np;
 608         unsigned int i = 0;
 609         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
 610                 *usb_dev_dr_client = NULL;
 611         int ret;
 612
 613         for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
 614                 struct resource r[2];
 615                 struct fsl_usb2_platform_data usb_data;
 616                 const unsigned char *prop = NULL;
 617
 618                 memset(&r, 0, sizeof(r));
 619                 memset(&usb_data, 0, sizeof(usb_data));
 620
 621                 ret = of_address_to_resource(np, 0, &r[0]);
 622                 if (ret)
 623                         goto err;
 624
 625                 of_irq_to_resource(np, 0, &r[1]);
 626
 627                 usb_dev_mph =
 628                     platform_device_register_simple("fsl-ehci", i, r, 2);
 629                 if (IS_ERR(usb_dev_mph)) {
 630                         ret = PTR_ERR(usb_dev_mph);
 631                         goto err;
 632                 }
 633
 634                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 635                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 636
 637                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 638
 639                 prop = of_get_property(np, "port0", NULL);
 640                 if (prop)
 641                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 642
 643                 prop = of_get_property(np, "port1", NULL);
 644                 if (prop)
 645                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 646
 647                 prop = of_get_property(np, "phy_type", NULL);
 648                 usb_data.phy_mode = determine_usb_phy(prop);
 649
 650                 ret =
 651                     platform_device_add_data(usb_dev_mph, &usb_data,
 652                                              sizeof(struct
 653                                                     fsl_usb2_platform_data));
 654                 if (ret)
 655                         goto unreg_mph;
 656                 i++;
 657         }
 658
 659         for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
 660                 struct resource r[2];
 661                 struct fsl_usb2_platform_data usb_data;
 662                 const unsigned char *prop = NULL;
 663
 664                 memset(&r, 0, sizeof(r));
 665                 memset(&usb_data, 0, sizeof(usb_data));
 666
 667                 ret = of_address_to_resource(np, 0, &r[0]);
 668                 if (ret)
 669                         goto unreg_mph;
 670
 671                 of_irq_to_resource(np, 0, &r[1]);
 672
 673                 prop = of_get_property(np, "dr_mode", NULL);
 674
 675                 if (!prop || !strcmp(prop, "host")) {
 676                         usb_data.operating_mode = FSL_USB2_DR_HOST;
 677                         usb_dev_dr_host = platform_device_register_simple(
 678                                         "fsl-ehci", i, r, 2);
 679                         if (IS_ERR(usb_dev_dr_host)) {
 680                                 ret = PTR_ERR(usb_dev_dr_host);
 681                                 goto err;
 682                         }
 683                 } else if (prop && !strcmp(prop, "peripheral")) {
 684                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
 685                         usb_dev_dr_client = platform_device_register_simple(
 686                                         "fsl-usb2-udc", i, r, 2);
 687                         if (IS_ERR(usb_dev_dr_client)) {
 688                                 ret = PTR_ERR(usb_dev_dr_client);
 689                                 goto err;
 690                         }
 691                 } else if (prop && !strcmp(prop, "otg")) {
 692                         usb_data.operating_mode = FSL_USB2_DR_OTG;
 693                         usb_dev_dr_host = platform_device_register_simple(
 694                                         "fsl-ehci", i, r, 2);
 695                         if (IS_ERR(usb_dev_dr_host)) {
 696                                 ret = PTR_ERR(usb_dev_dr_host);
 697                                 goto err;
 698                         }
 699                         usb_dev_dr_client = platform_device_register_simple(
 700                                         "fsl-usb2-udc", i, r, 2);
 701                         if (IS_ERR(usb_dev_dr_client)) {
 702                                 ret = PTR_ERR(usb_dev_dr_client);
 703                                 goto err;
 704                         }
 705                 } else {
 706                         ret = -EINVAL;
 707                         goto err;
 708                 }
 709
 710                 prop = of_get_property(np, "phy_type", NULL);
 711                 usb_data.phy_mode = determine_usb_phy(prop);
 712
 713                 if (usb_dev_dr_host) {
 714                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
 715                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
 716                                 dev.coherent_dma_mask;
 717                         if ((ret = platform_device_add_data(usb_dev_dr_host,
 718                                                 &usb_data, sizeof(struct
 719                                                 fsl_usb2_platform_data))))
 720                                 goto unreg_dr;
 721                 }
 722                 if (usb_dev_dr_client) {
 723                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
 724                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
 725                                 dev.coherent_dma_mask;
 726                         if ((ret = platform_device_add_data(usb_dev_dr_client,
 727                                                 &usb_data, sizeof(struct
 728                                                 fsl_usb2_platform_data))))
 729                                 goto unreg_dr;
 730                 }
 731                 i++;
 732         }
 733         return 0;
 734
 735 unreg_dr:
 736         if (usb_dev_dr_host)
 737                 platform_device_unregister(usb_dev_dr_host);
 738         if (usb_dev_dr_client)
 739                 platform_device_unregister(usb_dev_dr_client);
 740 unreg_mph:
 741         if (usb_dev_mph)
 742                 platform_device_unregister(usb_dev_mph);
 743 err:
 744         return ret;
 745 }
 746
 747 arch_initcall(fsl_usb_of_init);
 748
 749 static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
 750                                    struct spi_board_info *board_infos,
 751                                    unsigned int num_board_infos,
 752                                    void (*activate_cs)(u8 cs, u8 polarity),
 753                                    void (*deactivate_cs)(u8 cs, u8 polarity))
 754 {
 755         struct device_node *np;
 756         unsigned int i = 0;
 757
 758         for_each_compatible_node(np, type, compatible) {
 759                 int ret;
 760                 unsigned int j;
 761                 const void *prop;
 762                 struct resource res[2];
 763                 struct platform_device *pdev;
 764                 struct fsl_spi_platform_data pdata = {
 765                         .activate_cs = activate_cs,
 766                         .deactivate_cs = deactivate_cs,
 767                 };
 768
 769                 memset(res, 0, sizeof(res));
 770
 771                 pdata.sysclk = sysclk;
 772
 773                 prop = of_get_property(np, "reg", NULL);
 774                 if (!prop)
 775                         goto err;
 776                 pdata.bus_num = *(u32 *)prop;
 777
 778                 prop = of_get_property(np, "cell-index", NULL);
 779                 if (prop)
 780                         i = *(u32 *)prop;
 781
 782                 prop = of_get_property(np, "mode", NULL);
 783                 if (prop && !strcmp(prop, "cpu-qe"))
 784                         pdata.qe_mode = 1;
 785
 786                 for (j = 0; j < num_board_infos; j++) {
 787                         if (board_infos[j].bus_num == pdata.bus_num)
 788                                 pdata.max_chipselect++;
 789                 }
 790
 791                 if (!pdata.max_chipselect)
 792                         continue;
 793
 794                 ret = of_address_to_resource(np, 0, &res[0]);
 795                 if (ret)
 796                         goto err;
 797
 798                 ret = of_irq_to_resource(np, 0, &res[1]);
 799                 if (ret == NO_IRQ)
 800                         goto err;
 801
 802                 pdev = platform_device_alloc("mpc83xx_spi", i);
 803                 if (!pdev)
 804                         goto err;
 805
 806                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
 807                 if (ret)
 808                         goto unreg;
 809
 810                 ret = platform_device_add_resources(pdev, res,
 811                                                     ARRAY_SIZE(res));
 812                 if (ret)
 813                         goto unreg;
 814
 815                 ret = platform_device_add(pdev);
 816                 if (ret)
 817                         goto unreg;
 818
 819                 goto next;
 820 unreg:
 821                 platform_device_del(pdev);
 822 err:
 823                 pr_err("%s: registration failed\n", np->full_name);
 824 next:
 825                 i++;
 826         }
 827
 828         return i;
 829 }
 830
 831 int __init fsl_spi_init(struct spi_board_info *board_infos,
 832                         unsigned int num_board_infos,
 833                         void (*activate_cs)(u8 cs, u8 polarity),
 834                         void (*deactivate_cs)(u8 cs, u8 polarity))
 835 {
 836         u32 sysclk = -1;
 837         int ret;
 838
 839 #ifdef CONFIG_QUICC_ENGINE
 840         /* SPI controller is either clocked from QE or SoC clock */
 841         sysclk = get_brgfreq();
 842 #endif
 843         if (sysclk == -1) {
 844                 sysclk = fsl_get_sys_freq();
 845                 if (sysclk == -1)
 846                         return -ENODEV;
 847         }
 848
 849         ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
 850                                num_board_infos, activate_cs, deactivate_cs);
 851         if (!ret)
 852                 of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
 853                                  num_board_infos, activate_cs, deactivate_cs);
 854
 855         return spi_register_board_info(board_infos, num_board_infos);
 856 }
 857
 858 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
 859 static __be32 __iomem *rstcr;
 860
 861 static int __init setup_rstcr(void)
 862 {
 863         struct device_node *np;
 864         np = of_find_node_by_name(NULL, "global-utilities");
 865         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
 866                 const u32 *prop = of_get_property(np, "reg", NULL);
 867                 if (prop) {
 868                         /* map reset control register
 869                          * 0xE00B0 is offset of reset control register
 870                          */
 871                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
 872                         if (!rstcr)
 873                                 printk (KERN_EMERG "Error: reset control "
 874                                                 "register not mapped!\n");
 875                 }
 876         } else
 877                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
 878         if (np)
 879                 of_node_put(np);
 880         return 0;
 881 }
 882
 883 arch_initcall(setup_rstcr);
 884
 885 void fsl_rstcr_restart(char *cmd)
 886 {
 887         local_irq_disable();
 888         if (rstcr)
 889                 /* set reset control register */
 890                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
 891
 892         while (1) ;
 893 }
 894 #endif