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 #if defined(CONFIG_CPM2) || defined(CONFIG_QUICC_ENGINE) || defined(CONFIG_8xx)
  79
  80 static u32 brgfreq = -1;
  81
  82 u32 get_brgfreq(void)
  83 {
  84         struct device_node *node;
  85         const unsigned int *prop;
  86         int size;
  87
  88         if (brgfreq != -1)
  89                 return brgfreq;
  90
  91         node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
  92         if (node) {
  93                 prop = of_get_property(node, "clock-frequency", &size);
  94                 if (prop && size == 4)
  95                         brgfreq = *prop;
  96
  97                 of_node_put(node);
  98                 return brgfreq;
  99         }
 100
 101         /* Legacy device binding -- will go away when no users are left. */
 102         node = of_find_node_by_type(NULL, "cpm");
 103         if (!node)
 104                 node = of_find_compatible_node(NULL, NULL, "fsl,qe");
 105         if (!node)
 106                 node = of_find_node_by_type(NULL, "qe");
 107
 108         if (node) {
 109                 prop = of_get_property(node, "brg-frequency", &size);
 110                 if (prop && size == 4)
 111                         brgfreq = *prop;
 112
 113                 if (brgfreq == -1 || brgfreq == 0) {
 114                         prop = of_get_property(node, "bus-frequency", &size);
 115                         if (prop && size == 4)
 116                                 brgfreq = *prop / 2;
 117                 }
 118                 of_node_put(node);
 119         }
 120
 121         return brgfreq;
 122 }
 123
 124 EXPORT_SYMBOL(get_brgfreq);
 125
 126 static u32 fs_baudrate = -1;
 127
 128 u32 get_baudrate(void)
 129 {
 130         struct device_node *node;
 131
 132         if (fs_baudrate != -1)
 133                 return fs_baudrate;
 134
 135         node = of_find_node_by_type(NULL, "serial");
 136         if (node) {
 137                 int size;
 138                 const unsigned int *prop = of_get_property(node,
 139                                 "current-speed", &size);
 140
 141                 if (prop)
 142                         fs_baudrate = *prop;
 143                 of_node_put(node);
 144         }
 145
 146         return fs_baudrate;
 147 }
 148
 149 EXPORT_SYMBOL(get_baudrate);
 150 #endif /* CONFIG_CPM2 */
 151
 152 #ifdef CONFIG_FIXED_PHY
 153 static int __init of_add_fixed_phys(void)
 154 {
 155         int ret;
 156         struct device_node *np;
 157         u32 *fixed_link;
 158         struct fixed_phy_status status = {};
 159
 160         for_each_node_by_name(np, "ethernet") {
 161                 fixed_link  = (u32 *)of_get_property(np, "fixed-link", NULL);
 162                 if (!fixed_link)
 163                         continue;
 164
 165                 status.link = 1;
 166                 status.duplex = fixed_link[1];
 167                 status.speed = fixed_link[2];
 168                 status.pause = fixed_link[3];
 169                 status.asym_pause = fixed_link[4];
 170
 171                 ret = fixed_phy_add(PHY_POLL, fixed_link[0], &status);
 172                 if (ret) {
 173                         of_node_put(np);
 174                         return ret;
 175                 }
 176         }
 177
 178         return 0;
 179 }
 180 arch_initcall(of_add_fixed_phys);
 181 #endif /* CONFIG_FIXED_PHY */
 182
 183 static int __init gfar_mdio_of_init(void)
 184 {
 185         struct device_node *np = NULL;
 186         struct platform_device *mdio_dev;
 187         struct resource res;
 188         int ret;
 189
 190         np = of_find_compatible_node(np, NULL, "fsl,gianfar-mdio");
 191
 192         /* try the deprecated version */
 193         if (!np)
 194                 np = of_find_compatible_node(np, "mdio", "gianfar");
 195
 196         if (np) {
 197                 int k;
 198                 struct device_node *child = NULL;
 199                 struct gianfar_mdio_data mdio_data;
 200
 201                 memset(&res, 0, sizeof(res));
 202                 memset(&mdio_data, 0, sizeof(mdio_data));
 203
 204                 ret = of_address_to_resource(np, 0, &res);
 205                 if (ret)
 206                         goto err;
 207
 208                 mdio_dev =
 209                     platform_device_register_simple("fsl-gianfar_mdio",
 210                                                     res.start, &res, 1);
 211                 if (IS_ERR(mdio_dev)) {
 212                         ret = PTR_ERR(mdio_dev);
 213                         goto err;
 214                 }
 215
 216                 for (k = 0; k < 32; k++)
 217                         mdio_data.irq[k] = PHY_POLL;
 218
 219                 while ((child = of_get_next_child(np, child)) != NULL) {
 220                         int irq = irq_of_parse_and_map(child, 0);
 221                         if (irq != NO_IRQ) {
 222                                 const u32 *id = of_get_property(child,
 223                                                         "reg", NULL);
 224                                 mdio_data.irq[*id] = irq;
 225                         }
 226                 }
 227
 228                 ret =
 229                     platform_device_add_data(mdio_dev, &mdio_data,
 230                                              sizeof(struct gianfar_mdio_data));
 231                 if (ret)
 232                         goto unreg;
 233         }
 234
 235         of_node_put(np);
 236         return 0;
 237
 238 unreg:
 239         platform_device_unregister(mdio_dev);
 240 err:
 241         of_node_put(np);
 242         return ret;
 243 }
 244
 245 arch_initcall(gfar_mdio_of_init);
 246
 247 static const char *gfar_tx_intr = "tx";
 248 static const char *gfar_rx_intr = "rx";
 249 static const char *gfar_err_intr = "error";
 250
 251 static int __init gfar_of_init(void)
 252 {
 253         struct device_node *np;
 254         unsigned int i;
 255         struct platform_device *gfar_dev;
 256         struct resource res;
 257         int ret;
 258
 259         for (np = NULL, i = 0;
 260              (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
 261              i++) {
 262                 struct resource r[4];
 263                 struct device_node *phy, *mdio;
 264                 struct gianfar_platform_data gfar_data;
 265                 const unsigned int *id;
 266                 const char *model;
 267                 const char *ctype;
 268                 const void *mac_addr;
 269                 const phandle *ph;
 270                 int n_res = 2;
 271
 272                 memset(r, 0, sizeof(r));
 273                 memset(&gfar_data, 0, sizeof(gfar_data));
 274
 275                 ret = of_address_to_resource(np, 0, &r[0]);
 276                 if (ret)
 277                         goto err;
 278
 279                 of_irq_to_resource(np, 0, &r[1]);
 280
 281                 model = of_get_property(np, "model", NULL);
 282
 283                 /* If we aren't the FEC we have multiple interrupts */
 284                 if (model && strcasecmp(model, "FEC")) {
 285                         r[1].name = gfar_tx_intr;
 286
 287                         r[2].name = gfar_rx_intr;
 288                         of_irq_to_resource(np, 1, &r[2]);
 289
 290                         r[3].name = gfar_err_intr;
 291                         of_irq_to_resource(np, 2, &r[3]);
 292
 293                         n_res += 2;
 294                 }
 295
 296                 gfar_dev =
 297                     platform_device_register_simple("fsl-gianfar", i, &r[0],
 298                                                     n_res);
 299
 300                 if (IS_ERR(gfar_dev)) {
 301                         ret = PTR_ERR(gfar_dev);
 302                         goto err;
 303                 }
 304
 305                 mac_addr = of_get_mac_address(np);
 306                 if (mac_addr)
 307                         memcpy(gfar_data.mac_addr, mac_addr, 6);
 308
 309                 if (model && !strcasecmp(model, "TSEC"))
 310                         gfar_data.device_flags =
 311                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 312                             FSL_GIANFAR_DEV_HAS_COALESCE |
 313                             FSL_GIANFAR_DEV_HAS_RMON |
 314                             FSL_GIANFAR_DEV_HAS_MULTI_INTR;
 315                 if (model && !strcasecmp(model, "eTSEC"))
 316                         gfar_data.device_flags =
 317                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 318                             FSL_GIANFAR_DEV_HAS_COALESCE |
 319                             FSL_GIANFAR_DEV_HAS_RMON |
 320                             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
 321                             FSL_GIANFAR_DEV_HAS_CSUM |
 322                             FSL_GIANFAR_DEV_HAS_VLAN |
 323                             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 324
 325                 ctype = of_get_property(np, "phy-connection-type", NULL);
 326
 327                 /* We only care about rgmii-id.  The rest are autodetected */
 328                 if (ctype && !strcmp(ctype, "rgmii-id"))
 329                         gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID;
 330                 else
 331                         gfar_data.interface = PHY_INTERFACE_MODE_MII;
 332
 333                 ph = of_get_property(np, "phy-handle", NULL);
 334                 if (ph == NULL) {
 335                         u32 *fixed_link;
 336
 337                         fixed_link = (u32 *)of_get_property(np, "fixed-link",
 338                                                            NULL);
 339                         if (!fixed_link) {
 340                                 ret = -ENODEV;
 341                                 goto unreg;
 342                         }
 343
 344                         gfar_data.bus_id = 0;
 345                         gfar_data.phy_id = fixed_link[0];
 346                 } else {
 347                         phy = of_find_node_by_phandle(*ph);
 348
 349                         if (phy == NULL) {
 350                                 ret = -ENODEV;
 351                                 goto unreg;
 352                         }
 353
 354                         mdio = of_get_parent(phy);
 355
 356                         id = of_get_property(phy, "reg", NULL);
 357                         ret = of_address_to_resource(mdio, 0, &res);
 358                         if (ret) {
 359                                 of_node_put(phy);
 360                                 of_node_put(mdio);
 361                                 goto unreg;
 362                         }
 363
 364                         gfar_data.phy_id = *id;
 365                         gfar_data.bus_id = res.start;
 366
 367                         of_node_put(phy);
 368                         of_node_put(mdio);
 369                 }
 370
 371                 ret =
 372                     platform_device_add_data(gfar_dev, &gfar_data,
 373                                              sizeof(struct
 374                                                     gianfar_platform_data));
 375                 if (ret)
 376                         goto unreg;
 377         }
 378
 379         return 0;
 380
 381 unreg:
 382         platform_device_unregister(gfar_dev);
 383 err:
 384         return ret;
 385 }
 386
 387 arch_initcall(gfar_of_init);
 388
 389 #ifdef CONFIG_I2C_BOARDINFO
 390 #include <linux/i2c.h>
 391 struct i2c_driver_device {
 392         char    *of_device;
 393         char    *i2c_driver;
 394         char    *i2c_type;
 395 };
 396
 397 static struct i2c_driver_device i2c_devices[] __initdata = {
 398         {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
 399         {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
 400         {"ricoh,rv5c386",  "rtc-rs5c372", "rv5c386",},
 401         {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
 402         {"dallas,ds1307",  "rtc-ds1307",  "ds1307",},
 403         {"dallas,ds1337",  "rtc-ds1307",  "ds1337",},
 404         {"dallas,ds1338",  "rtc-ds1307",  "ds1338",},
 405         {"dallas,ds1339",  "rtc-ds1307",  "ds1339",},
 406         {"dallas,ds1340",  "rtc-ds1307",  "ds1340",},
 407         {"stm,m41t00",     "rtc-ds1307",  "m41t00"},
 408         {"dallas,ds1374",  "rtc-ds1374",  "rtc-ds1374",},
 409 };
 410
 411 static int __init of_find_i2c_driver(struct device_node *node,
 412                                      struct i2c_board_info *info)
 413 {
 414         int i;
 415
 416         for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
 417                 if (!of_device_is_compatible(node, i2c_devices[i].of_device))
 418                         continue;
 419                 if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver,
 420                             KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
 421                     strlcpy(info->type, i2c_devices[i].i2c_type,
 422                             I2C_NAME_SIZE) >= I2C_NAME_SIZE)
 423                         return -ENOMEM;
 424                 return 0;
 425         }
 426         return -ENODEV;
 427 }
 428
 429 static void __init of_register_i2c_devices(struct device_node *adap_node,
 430                                            int bus_num)
 431 {
 432         struct device_node *node = NULL;
 433
 434         while ((node = of_get_next_child(adap_node, node))) {
 435                 struct i2c_board_info info = {};
 436                 const u32 *addr;
 437                 int len;
 438
 439                 addr = of_get_property(node, "reg", &len);
 440                 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
 441                         printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
 442                         continue;
 443                 }
 444
 445                 info.irq = irq_of_parse_and_map(node, 0);
 446                 if (info.irq == NO_IRQ)
 447                         info.irq = -1;
 448
 449                 if (of_find_i2c_driver(node, &info) < 0)
 450                         continue;
 451
 452                 info.addr = *addr;
 453
 454                 i2c_register_board_info(bus_num, &info, 1);
 455         }
 456 }
 457
 458 static int __init fsl_i2c_of_init(void)
 459 {
 460         struct device_node *np;
 461         unsigned int i = 0;
 462         struct platform_device *i2c_dev;
 463         int ret;
 464
 465         for_each_compatible_node(np, NULL, "fsl-i2c") {
 466                 struct resource r[2];
 467                 struct fsl_i2c_platform_data i2c_data;
 468                 const unsigned char *flags = NULL;
 469
 470                 memset(&r, 0, sizeof(r));
 471                 memset(&i2c_data, 0, sizeof(i2c_data));
 472
 473                 ret = of_address_to_resource(np, 0, &r[0]);
 474                 if (ret)
 475                         goto err;
 476
 477                 of_irq_to_resource(np, 0, &r[1]);
 478
 479                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 480                 if (IS_ERR(i2c_dev)) {
 481                         ret = PTR_ERR(i2c_dev);
 482                         goto err;
 483                 }
 484
 485                 i2c_data.device_flags = 0;
 486                 flags = of_get_property(np, "dfsrr", NULL);
 487                 if (flags)
 488                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 489
 490                 flags = of_get_property(np, "fsl5200-clocking", NULL);
 491                 if (flags)
 492                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 493
 494                 ret =
 495                     platform_device_add_data(i2c_dev, &i2c_data,
 496                                              sizeof(struct
 497                                                     fsl_i2c_platform_data));
 498                 if (ret)
 499                         goto unreg;
 500
 501                 of_register_i2c_devices(np, i++);
 502         }
 503
 504         return 0;
 505
 506 unreg:
 507         platform_device_unregister(i2c_dev);
 508 err:
 509         return ret;
 510 }
 511
 512 arch_initcall(fsl_i2c_of_init);
 513 #endif
 514
 515 #ifdef CONFIG_PPC_83xx
 516 static int __init mpc83xx_wdt_init(void)
 517 {
 518         struct resource r;
 519         struct device_node *soc, *np;
 520         struct platform_device *dev;
 521         const unsigned int *freq;
 522         int ret;
 523
 524         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 525
 526         if (!np) {
 527                 ret = -ENODEV;
 528                 goto nodev;
 529         }
 530
 531         soc = of_find_node_by_type(NULL, "soc");
 532
 533         if (!soc) {
 534                 ret = -ENODEV;
 535                 goto nosoc;
 536         }
 537
 538         freq = of_get_property(soc, "bus-frequency", NULL);
 539         if (!freq) {
 540                 ret = -ENODEV;
 541                 goto err;
 542         }
 543
 544         memset(&r, 0, sizeof(r));
 545
 546         ret = of_address_to_resource(np, 0, &r);
 547         if (ret)
 548                 goto err;
 549
 550         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 551         if (IS_ERR(dev)) {
 552                 ret = PTR_ERR(dev);
 553                 goto err;
 554         }
 555
 556         ret = platform_device_add_data(dev, freq, sizeof(int));
 557         if (ret)
 558                 goto unreg;
 559
 560         of_node_put(soc);
 561         of_node_put(np);
 562
 563         return 0;
 564
 565 unreg:
 566         platform_device_unregister(dev);
 567 err:
 568         of_node_put(soc);
 569 nosoc:
 570         of_node_put(np);
 571 nodev:
 572         return ret;
 573 }
 574
 575 arch_initcall(mpc83xx_wdt_init);
 576 #endif
 577
 578 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 579 {
 580         if (!phy_type)
 581                 return FSL_USB2_PHY_NONE;
 582         if (!strcasecmp(phy_type, "ulpi"))
 583                 return FSL_USB2_PHY_ULPI;
 584         if (!strcasecmp(phy_type, "utmi"))
 585                 return FSL_USB2_PHY_UTMI;
 586         if (!strcasecmp(phy_type, "utmi_wide"))
 587                 return FSL_USB2_PHY_UTMI_WIDE;
 588         if (!strcasecmp(phy_type, "serial"))
 589                 return FSL_USB2_PHY_SERIAL;
 590
 591         return FSL_USB2_PHY_NONE;
 592 }
 593
 594 static int __init fsl_usb_of_init(void)
 595 {
 596         struct device_node *np;
 597         unsigned int i = 0;
 598         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
 599                 *usb_dev_dr_client = NULL;
 600         int ret;
 601
 602         for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
 603                 struct resource r[2];
 604                 struct fsl_usb2_platform_data usb_data;
 605                 const unsigned char *prop = NULL;
 606
 607                 memset(&r, 0, sizeof(r));
 608                 memset(&usb_data, 0, sizeof(usb_data));
 609
 610                 ret = of_address_to_resource(np, 0, &r[0]);
 611                 if (ret)
 612                         goto err;
 613
 614                 of_irq_to_resource(np, 0, &r[1]);
 615
 616                 usb_dev_mph =
 617                     platform_device_register_simple("fsl-ehci", i, r, 2);
 618                 if (IS_ERR(usb_dev_mph)) {
 619                         ret = PTR_ERR(usb_dev_mph);
 620                         goto err;
 621                 }
 622
 623                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 624                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 625
 626                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 627
 628                 prop = of_get_property(np, "port0", NULL);
 629                 if (prop)
 630                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 631
 632                 prop = of_get_property(np, "port1", NULL);
 633                 if (prop)
 634                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 635
 636                 prop = of_get_property(np, "phy_type", NULL);
 637                 usb_data.phy_mode = determine_usb_phy(prop);
 638
 639                 ret =
 640                     platform_device_add_data(usb_dev_mph, &usb_data,
 641                                              sizeof(struct
 642                                                     fsl_usb2_platform_data));
 643                 if (ret)
 644                         goto unreg_mph;
 645                 i++;
 646         }
 647
 648         for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
 649                 struct resource r[2];
 650                 struct fsl_usb2_platform_data usb_data;
 651                 const unsigned char *prop = NULL;
 652
 653                 memset(&r, 0, sizeof(r));
 654                 memset(&usb_data, 0, sizeof(usb_data));
 655
 656                 ret = of_address_to_resource(np, 0, &r[0]);
 657                 if (ret)
 658                         goto unreg_mph;
 659
 660                 of_irq_to_resource(np, 0, &r[1]);
 661
 662                 prop = of_get_property(np, "dr_mode", NULL);
 663
 664                 if (!prop || !strcmp(prop, "host")) {
 665                         usb_data.operating_mode = FSL_USB2_DR_HOST;
 666                         usb_dev_dr_host = platform_device_register_simple(
 667                                         "fsl-ehci", i, r, 2);
 668                         if (IS_ERR(usb_dev_dr_host)) {
 669                                 ret = PTR_ERR(usb_dev_dr_host);
 670                                 goto err;
 671                         }
 672                 } else if (prop && !strcmp(prop, "peripheral")) {
 673                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
 674                         usb_dev_dr_client = platform_device_register_simple(
 675                                         "fsl-usb2-udc", i, r, 2);
 676                         if (IS_ERR(usb_dev_dr_client)) {
 677                                 ret = PTR_ERR(usb_dev_dr_client);
 678                                 goto err;
 679                         }
 680                 } else if (prop && !strcmp(prop, "otg")) {
 681                         usb_data.operating_mode = FSL_USB2_DR_OTG;
 682                         usb_dev_dr_host = platform_device_register_simple(
 683                                         "fsl-ehci", i, r, 2);
 684                         if (IS_ERR(usb_dev_dr_host)) {
 685                                 ret = PTR_ERR(usb_dev_dr_host);
 686                                 goto err;
 687                         }
 688                         usb_dev_dr_client = platform_device_register_simple(
 689                                         "fsl-usb2-udc", i, r, 2);
 690                         if (IS_ERR(usb_dev_dr_client)) {
 691                                 ret = PTR_ERR(usb_dev_dr_client);
 692                                 goto err;
 693                         }
 694                 } else {
 695                         ret = -EINVAL;
 696                         goto err;
 697                 }
 698
 699                 prop = of_get_property(np, "phy_type", NULL);
 700                 usb_data.phy_mode = determine_usb_phy(prop);
 701
 702                 if (usb_dev_dr_host) {
 703                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
 704                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
 705                                 dev.coherent_dma_mask;
 706                         if ((ret = platform_device_add_data(usb_dev_dr_host,
 707                                                 &usb_data, sizeof(struct
 708                                                 fsl_usb2_platform_data))))
 709                                 goto unreg_dr;
 710                 }
 711                 if (usb_dev_dr_client) {
 712                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
 713                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
 714                                 dev.coherent_dma_mask;
 715                         if ((ret = platform_device_add_data(usb_dev_dr_client,
 716                                                 &usb_data, sizeof(struct
 717                                                 fsl_usb2_platform_data))))
 718                                 goto unreg_dr;
 719                 }
 720                 i++;
 721         }
 722         return 0;
 723
 724 unreg_dr:
 725         if (usb_dev_dr_host)
 726                 platform_device_unregister(usb_dev_dr_host);
 727         if (usb_dev_dr_client)
 728                 platform_device_unregister(usb_dev_dr_client);
 729 unreg_mph:
 730         if (usb_dev_mph)
 731                 platform_device_unregister(usb_dev_mph);
 732 err:
 733         return ret;
 734 }
 735
 736 arch_initcall(fsl_usb_of_init);
 737
 738 static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
 739                                    struct spi_board_info *board_infos,
 740                                    unsigned int num_board_infos,
 741                                    void (*activate_cs)(u8 cs, u8 polarity),
 742                                    void (*deactivate_cs)(u8 cs, u8 polarity))
 743 {
 744         struct device_node *np;
 745         unsigned int i = 0;
 746
 747         for_each_compatible_node(np, type, compatible) {
 748                 int ret;
 749                 unsigned int j;
 750                 const void *prop;
 751                 struct resource res[2];
 752                 struct platform_device *pdev;
 753                 struct fsl_spi_platform_data pdata = {
 754                         .activate_cs = activate_cs,
 755                         .deactivate_cs = deactivate_cs,
 756                 };
 757
 758                 memset(res, 0, sizeof(res));
 759
 760                 pdata.sysclk = sysclk;
 761
 762                 prop = of_get_property(np, "reg", NULL);
 763                 if (!prop)
 764                         goto err;
 765                 pdata.bus_num = *(u32 *)prop;
 766
 767                 prop = of_get_property(np, "cell-index", NULL);
 768                 if (prop)
 769                         i = *(u32 *)prop;
 770
 771                 prop = of_get_property(np, "mode", NULL);
 772                 if (prop && !strcmp(prop, "cpu-qe"))
 773                         pdata.qe_mode = 1;
 774
 775                 for (j = 0; j < num_board_infos; j++) {
 776                         if (board_infos[j].bus_num == pdata.bus_num)
 777                                 pdata.max_chipselect++;
 778                 }
 779
 780                 if (!pdata.max_chipselect)
 781                         continue;
 782
 783                 ret = of_address_to_resource(np, 0, &res[0]);
 784                 if (ret)
 785                         goto err;
 786
 787                 ret = of_irq_to_resource(np, 0, &res[1]);
 788                 if (ret == NO_IRQ)
 789                         goto err;
 790
 791                 pdev = platform_device_alloc("mpc83xx_spi", i);
 792                 if (!pdev)
 793                         goto err;
 794
 795                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
 796                 if (ret)
 797                         goto unreg;
 798
 799                 ret = platform_device_add_resources(pdev, res,
 800                                                     ARRAY_SIZE(res));
 801                 if (ret)
 802                         goto unreg;
 803
 804                 ret = platform_device_add(pdev);
 805                 if (ret)
 806                         goto unreg;
 807
 808                 goto next;
 809 unreg:
 810                 platform_device_del(pdev);
 811 err:
 812                 pr_err("%s: registration failed\n", np->full_name);
 813 next:
 814                 i++;
 815         }
 816
 817         return i;
 818 }
 819
 820 int __init fsl_spi_init(struct spi_board_info *board_infos,
 821                         unsigned int num_board_infos,
 822                         void (*activate_cs)(u8 cs, u8 polarity),
 823                         void (*deactivate_cs)(u8 cs, u8 polarity))
 824 {
 825         u32 sysclk = -1;
 826         int ret;
 827
 828 #ifdef CONFIG_QUICC_ENGINE
 829         /* SPI controller is either clocked from QE or SoC clock */
 830         sysclk = get_brgfreq();
 831 #endif
 832         if (sysclk == -1) {
 833                 struct device_node *np;
 834                 const u32 *freq;
 835                 int size;
 836
 837                 np = of_find_node_by_type(NULL, "soc");
 838                 if (!np)
 839                         return -ENODEV;
 840
 841                 freq = of_get_property(np, "clock-frequency", &size);
 842                 if (!freq || size != sizeof(*freq) || *freq == 0) {
 843                         freq = of_get_property(np, "bus-frequency", &size);
 844                         if (!freq || size != sizeof(*freq) || *freq == 0) {
 845                                 of_node_put(np);
 846                                 return -ENODEV;
 847                         }
 848                 }
 849
 850                 sysclk = *freq;
 851                 of_node_put(np);
 852         }
 853
 854         ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
 855                                num_board_infos, activate_cs, deactivate_cs);
 856         if (!ret)
 857                 of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
 858                                  num_board_infos, activate_cs, deactivate_cs);
 859
 860         return spi_register_board_info(board_infos, num_board_infos);
 861 }
 862
 863 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
 864 static __be32 __iomem *rstcr;
 865
 866 static int __init setup_rstcr(void)
 867 {
 868         struct device_node *np;
 869         np = of_find_node_by_name(NULL, "global-utilities");
 870         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
 871                 const u32 *prop = of_get_property(np, "reg", NULL);
 872                 if (prop) {
 873                         /* map reset control register
 874                          * 0xE00B0 is offset of reset control register
 875                          */
 876                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
 877                         if (!rstcr)
 878                                 printk (KERN_EMERG "Error: reset control "
 879                                                 "register not mapped!\n");
 880                 }
 881         } else
 882                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
 883         if (np)
 884                 of_node_put(np);
 885         return 0;
 886 }
 887
 888 arch_initcall(setup_rstcr);
 889
 890 void fsl_rstcr_restart(char *cmd)
 891 {
 892         local_irq_disable();
 893         if (rstcr)
 894                 /* set reset control register */
 895                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
 896
 897         while (1) ;
 898 }
 899 #endif