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 };
 437
 438 static int __init of_find_i2c_driver(struct device_node *node,
 439                                      struct i2c_board_info *info)
 440 {
 441         int i;
 442
 443         for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
 444                 if (!of_device_is_compatible(node, i2c_devices[i].of_device))
 445                         continue;
 446                 if (strlcpy(info->type, i2c_devices[i].i2c_type,
 447                             I2C_NAME_SIZE) >= I2C_NAME_SIZE)
 448                         return -ENOMEM;
 449                 return 0;
 450         }
 451         return -ENODEV;
 452 }
 453
 454 static void __init of_register_i2c_devices(struct device_node *adap_node,
 455                                            int bus_num)
 456 {
 457         struct device_node *node = NULL;
 458
 459         while ((node = of_get_next_child(adap_node, node))) {
 460                 struct i2c_board_info info = {};
 461                 const u32 *addr;
 462                 int len;
 463
 464                 addr = of_get_property(node, "reg", &len);
 465                 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
 466                         printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
 467                         continue;
 468                 }
 469
 470                 info.irq = irq_of_parse_and_map(node, 0);
 471                 if (info.irq == NO_IRQ)
 472                         info.irq = -1;
 473
 474                 if (of_find_i2c_driver(node, &info) < 0)
 475                         continue;
 476
 477                 info.addr = *addr;
 478
 479                 i2c_register_board_info(bus_num, &info, 1);
 480         }
 481 }
 482
 483 static int __init fsl_i2c_of_init(void)
 484 {
 485         struct device_node *np;
 486         unsigned int i = 0;
 487         struct platform_device *i2c_dev;
 488         int ret;
 489
 490         for_each_compatible_node(np, NULL, "fsl-i2c") {
 491                 struct resource r[2];
 492                 struct fsl_i2c_platform_data i2c_data;
 493                 const unsigned char *flags = NULL;
 494
 495                 memset(&r, 0, sizeof(r));
 496                 memset(&i2c_data, 0, sizeof(i2c_data));
 497
 498                 ret = of_address_to_resource(np, 0, &r[0]);
 499                 if (ret)
 500                         goto err;
 501
 502                 of_irq_to_resource(np, 0, &r[1]);
 503
 504                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 505                 if (IS_ERR(i2c_dev)) {
 506                         ret = PTR_ERR(i2c_dev);
 507                         goto err;
 508                 }
 509
 510                 i2c_data.device_flags = 0;
 511                 flags = of_get_property(np, "dfsrr", NULL);
 512                 if (flags)
 513                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 514
 515                 flags = of_get_property(np, "fsl5200-clocking", NULL);
 516                 if (flags)
 517                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 518
 519                 ret =
 520                     platform_device_add_data(i2c_dev, &i2c_data,
 521                                              sizeof(struct
 522                                                     fsl_i2c_platform_data));
 523                 if (ret)
 524                         goto unreg;
 525
 526                 of_register_i2c_devices(np, i++);
 527         }
 528
 529         return 0;
 530
 531 unreg:
 532         platform_device_unregister(i2c_dev);
 533 err:
 534         return ret;
 535 }
 536
 537 arch_initcall(fsl_i2c_of_init);
 538 #endif
 539
 540 #ifdef CONFIG_PPC_83xx
 541 static int __init mpc83xx_wdt_init(void)
 542 {
 543         struct resource r;
 544         struct device_node *np;
 545         struct platform_device *dev;
 546         u32 freq = fsl_get_sys_freq();
 547         int ret;
 548
 549         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 550
 551         if (!np) {
 552                 ret = -ENODEV;
 553                 goto nodev;
 554         }
 555
 556         memset(&r, 0, sizeof(r));
 557
 558         ret = of_address_to_resource(np, 0, &r);
 559         if (ret)
 560                 goto err;
 561
 562         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 563         if (IS_ERR(dev)) {
 564                 ret = PTR_ERR(dev);
 565                 goto err;
 566         }
 567
 568         ret = platform_device_add_data(dev, &freq, sizeof(freq));
 569         if (ret)
 570                 goto unreg;
 571
 572         of_node_put(np);
 573         return 0;
 574
 575 unreg:
 576         platform_device_unregister(dev);
 577 err:
 578         of_node_put(np);
 579 nodev:
 580         return ret;
 581 }
 582
 583 arch_initcall(mpc83xx_wdt_init);
 584 #endif
 585
 586 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 587 {
 588         if (!phy_type)
 589                 return FSL_USB2_PHY_NONE;
 590         if (!strcasecmp(phy_type, "ulpi"))
 591                 return FSL_USB2_PHY_ULPI;
 592         if (!strcasecmp(phy_type, "utmi"))
 593                 return FSL_USB2_PHY_UTMI;
 594         if (!strcasecmp(phy_type, "utmi_wide"))
 595                 return FSL_USB2_PHY_UTMI_WIDE;
 596         if (!strcasecmp(phy_type, "serial"))
 597                 return FSL_USB2_PHY_SERIAL;
 598
 599         return FSL_USB2_PHY_NONE;
 600 }
 601
 602 static int __init fsl_usb_of_init(void)
 603 {
 604         struct device_node *np;
 605         unsigned int i = 0;
 606         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
 607                 *usb_dev_dr_client = NULL;
 608         int ret;
 609
 610         for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
 611                 struct resource r[2];
 612                 struct fsl_usb2_platform_data usb_data;
 613                 const unsigned char *prop = NULL;
 614
 615                 memset(&r, 0, sizeof(r));
 616                 memset(&usb_data, 0, sizeof(usb_data));
 617
 618                 ret = of_address_to_resource(np, 0, &r[0]);
 619                 if (ret)
 620                         goto err;
 621
 622                 of_irq_to_resource(np, 0, &r[1]);
 623
 624                 usb_dev_mph =
 625                     platform_device_register_simple("fsl-ehci", i, r, 2);
 626                 if (IS_ERR(usb_dev_mph)) {
 627                         ret = PTR_ERR(usb_dev_mph);
 628                         goto err;
 629                 }
 630
 631                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 632                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 633
 634                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 635
 636                 prop = of_get_property(np, "port0", NULL);
 637                 if (prop)
 638                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 639
 640                 prop = of_get_property(np, "port1", NULL);
 641                 if (prop)
 642                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 643
 644                 prop = of_get_property(np, "phy_type", NULL);
 645                 usb_data.phy_mode = determine_usb_phy(prop);
 646
 647                 ret =
 648                     platform_device_add_data(usb_dev_mph, &usb_data,
 649                                              sizeof(struct
 650                                                     fsl_usb2_platform_data));
 651                 if (ret)
 652                         goto unreg_mph;
 653                 i++;
 654         }
 655
 656         for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
 657                 struct resource r[2];
 658                 struct fsl_usb2_platform_data usb_data;
 659                 const unsigned char *prop = NULL;
 660
 661                 memset(&r, 0, sizeof(r));
 662                 memset(&usb_data, 0, sizeof(usb_data));
 663
 664                 ret = of_address_to_resource(np, 0, &r[0]);
 665                 if (ret)
 666                         goto unreg_mph;
 667
 668                 of_irq_to_resource(np, 0, &r[1]);
 669
 670                 prop = of_get_property(np, "dr_mode", NULL);
 671
 672                 if (!prop || !strcmp(prop, "host")) {
 673                         usb_data.operating_mode = FSL_USB2_DR_HOST;
 674                         usb_dev_dr_host = platform_device_register_simple(
 675                                         "fsl-ehci", i, r, 2);
 676                         if (IS_ERR(usb_dev_dr_host)) {
 677                                 ret = PTR_ERR(usb_dev_dr_host);
 678                                 goto err;
 679                         }
 680                 } else if (prop && !strcmp(prop, "peripheral")) {
 681                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
 682                         usb_dev_dr_client = platform_device_register_simple(
 683                                         "fsl-usb2-udc", i, r, 2);
 684                         if (IS_ERR(usb_dev_dr_client)) {
 685                                 ret = PTR_ERR(usb_dev_dr_client);
 686                                 goto err;
 687                         }
 688                 } else if (prop && !strcmp(prop, "otg")) {
 689                         usb_data.operating_mode = FSL_USB2_DR_OTG;
 690                         usb_dev_dr_host = platform_device_register_simple(
 691                                         "fsl-ehci", i, r, 2);
 692                         if (IS_ERR(usb_dev_dr_host)) {
 693                                 ret = PTR_ERR(usb_dev_dr_host);
 694                                 goto err;
 695                         }
 696                         usb_dev_dr_client = platform_device_register_simple(
 697                                         "fsl-usb2-udc", i, r, 2);
 698                         if (IS_ERR(usb_dev_dr_client)) {
 699                                 ret = PTR_ERR(usb_dev_dr_client);
 700                                 goto err;
 701                         }
 702                 } else {
 703                         ret = -EINVAL;
 704                         goto err;
 705                 }
 706
 707                 prop = of_get_property(np, "phy_type", NULL);
 708                 usb_data.phy_mode = determine_usb_phy(prop);
 709
 710                 if (usb_dev_dr_host) {
 711                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
 712                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
 713                                 dev.coherent_dma_mask;
 714                         if ((ret = platform_device_add_data(usb_dev_dr_host,
 715                                                 &usb_data, sizeof(struct
 716                                                 fsl_usb2_platform_data))))
 717                                 goto unreg_dr;
 718                 }
 719                 if (usb_dev_dr_client) {
 720                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
 721                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
 722                                 dev.coherent_dma_mask;
 723                         if ((ret = platform_device_add_data(usb_dev_dr_client,
 724                                                 &usb_data, sizeof(struct
 725                                                 fsl_usb2_platform_data))))
 726                                 goto unreg_dr;
 727                 }
 728                 i++;
 729         }
 730         return 0;
 731
 732 unreg_dr:
 733         if (usb_dev_dr_host)
 734                 platform_device_unregister(usb_dev_dr_host);
 735         if (usb_dev_dr_client)
 736                 platform_device_unregister(usb_dev_dr_client);
 737 unreg_mph:
 738         if (usb_dev_mph)
 739                 platform_device_unregister(usb_dev_mph);
 740 err:
 741         return ret;
 742 }
 743
 744 arch_initcall(fsl_usb_of_init);
 745
 746 static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
 747                                    struct spi_board_info *board_infos,
 748                                    unsigned int num_board_infos,
 749                                    void (*activate_cs)(u8 cs, u8 polarity),
 750                                    void (*deactivate_cs)(u8 cs, u8 polarity))
 751 {
 752         struct device_node *np;
 753         unsigned int i = 0;
 754
 755         for_each_compatible_node(np, type, compatible) {
 756                 int ret;
 757                 unsigned int j;
 758                 const void *prop;
 759                 struct resource res[2];
 760                 struct platform_device *pdev;
 761                 struct fsl_spi_platform_data pdata = {
 762                         .activate_cs = activate_cs,
 763                         .deactivate_cs = deactivate_cs,
 764                 };
 765
 766                 memset(res, 0, sizeof(res));
 767
 768                 pdata.sysclk = sysclk;
 769
 770                 prop = of_get_property(np, "reg", NULL);
 771                 if (!prop)
 772                         goto err;
 773                 pdata.bus_num = *(u32 *)prop;
 774
 775                 prop = of_get_property(np, "cell-index", NULL);
 776                 if (prop)
 777                         i = *(u32 *)prop;
 778
 779                 prop = of_get_property(np, "mode", NULL);
 780                 if (prop && !strcmp(prop, "cpu-qe"))
 781                         pdata.qe_mode = 1;
 782
 783                 for (j = 0; j < num_board_infos; j++) {
 784                         if (board_infos[j].bus_num == pdata.bus_num)
 785                                 pdata.max_chipselect++;
 786                 }
 787
 788                 if (!pdata.max_chipselect)
 789                         continue;
 790
 791                 ret = of_address_to_resource(np, 0, &res[0]);
 792                 if (ret)
 793                         goto err;
 794
 795                 ret = of_irq_to_resource(np, 0, &res[1]);
 796                 if (ret == NO_IRQ)
 797                         goto err;
 798
 799                 pdev = platform_device_alloc("mpc83xx_spi", i);
 800                 if (!pdev)
 801                         goto err;
 802
 803                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
 804                 if (ret)
 805                         goto unreg;
 806
 807                 ret = platform_device_add_resources(pdev, res,
 808                                                     ARRAY_SIZE(res));
 809                 if (ret)
 810                         goto unreg;
 811
 812                 ret = platform_device_add(pdev);
 813                 if (ret)
 814                         goto unreg;
 815
 816                 goto next;
 817 unreg:
 818                 platform_device_del(pdev);
 819 err:
 820                 pr_err("%s: registration failed\n", np->full_name);
 821 next:
 822                 i++;
 823         }
 824
 825         return i;
 826 }
 827
 828 int __init fsl_spi_init(struct spi_board_info *board_infos,
 829                         unsigned int num_board_infos,
 830                         void (*activate_cs)(u8 cs, u8 polarity),
 831                         void (*deactivate_cs)(u8 cs, u8 polarity))
 832 {
 833         u32 sysclk = -1;
 834         int ret;
 835
 836 #ifdef CONFIG_QUICC_ENGINE
 837         /* SPI controller is either clocked from QE or SoC clock */
 838         sysclk = get_brgfreq();
 839 #endif
 840         if (sysclk == -1) {
 841                 sysclk = fsl_get_sys_freq();
 842                 if (sysclk == -1)
 843                         return -ENODEV;
 844         }
 845
 846         ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
 847                                num_board_infos, activate_cs, deactivate_cs);
 848         if (!ret)
 849                 of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
 850                                  num_board_infos, activate_cs, deactivate_cs);
 851
 852         return spi_register_board_info(board_infos, num_board_infos);
 853 }
 854
 855 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
 856 static __be32 __iomem *rstcr;
 857
 858 static int __init setup_rstcr(void)
 859 {
 860         struct device_node *np;
 861         np = of_find_node_by_name(NULL, "global-utilities");
 862         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
 863                 const u32 *prop = of_get_property(np, "reg", NULL);
 864                 if (prop) {
 865                         /* map reset control register
 866                          * 0xE00B0 is offset of reset control register
 867                          */
 868                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
 869                         if (!rstcr)
 870                                 printk (KERN_EMERG "Error: reset control "
 871                                                 "register not mapped!\n");
 872                 }
 873         } else
 874                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
 875         if (np)
 876                 of_node_put(np);
 877         return 0;
 878 }
 879
 880 arch_initcall(setup_rstcr);
 881
 882 void fsl_rstcr_restart(char *cmd)
 883 {
 884         local_irq_disable();
 885         if (rstcr)
 886                 /* set reset control register */
 887                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
 888
 889         while (1) ;
 890 }
 891 #endif
 892
 893 #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
 894 struct platform_diu_data_ops diu_ops = {
 895         .diu_size = 1280 * 1024 * 4,    /* default one 1280x1024 buffer */
 896 };
 897 EXPORT_SYMBOL(diu_ops);
 898
 899 int __init preallocate_diu_videomemory(void)
 900 {
 901         pr_debug("diu_size=%lu\n", diu_ops.diu_size);
 902
 903         diu_ops.diu_mem = __alloc_bootmem(diu_ops.diu_size, 8, 0);
 904         if (!diu_ops.diu_mem) {
 905                 printk(KERN_ERR "fsl-diu: cannot allocate %lu bytes\n",
 906                         diu_ops.diu_size);
 907                 return -ENOMEM;
 908         }
 909
 910         pr_debug("diu_mem=%p\n", diu_ops.diu_mem);
 911
 912         rh_init(&diu_ops.diu_rh_info, 4096, ARRAY_SIZE(diu_ops.diu_rh_block),
 913                 diu_ops.diu_rh_block);
 914         return rh_attach_region(&diu_ops.diu_rh_info,
 915                                 (unsigned long) diu_ops.diu_mem,
 916                                 diu_ops.diu_size);
 917 }
 918
 919 static int __init early_parse_diufb(char *p)
 920 {
 921         if (!p)
 922                 return 1;
 923
 924         diu_ops.diu_size = _ALIGN_UP(memparse(p, &p), 8);
 925
 926         pr_debug("diu_size=%lu\n", diu_ops.diu_size);
 927
 928         return 0;
 929 }
 930 early_param("diufb", early_parse_diufb);
 931
 932 #endif