err.no Git - linux-2.6/blob - 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                         snprintf(gfar_data.bus_id, MII_BUS_ID_SIZE, "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                         snprintf(gfar_data.bus_id, MII_BUS_ID_SIZE, "%x",
 366                                         res.start);
 367
 368                         of_node_put(phy);
 369                         of_node_put(mdio);
 370                 }
 371
 372                 ret =
 373                     platform_device_add_data(gfar_dev, &gfar_data,
 374                                              sizeof(struct
 375                                                     gianfar_platform_data));
 376                 if (ret)
 377                         goto unreg;
 378         }
 379
 380         return 0;
 381
 382 unreg:
 383         platform_device_unregister(gfar_dev);
 384 err:
 385         return ret;
 386 }
 387
 388 arch_initcall(gfar_of_init);
 389
 390 #ifdef CONFIG_I2C_BOARDINFO
 391 #include <linux/i2c.h>
 392 struct i2c_driver_device {
 393         char    *of_device;
 394         char    *i2c_driver;
 395         char    *i2c_type;
 396 };
 397
 398 static struct i2c_driver_device i2c_devices[] __initdata = {
 399         {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
 400         {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
 401         {"ricoh,rv5c386",  "rtc-rs5c372", "rv5c386",},
 402         {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
 403         {"dallas,ds1307",  "rtc-ds1307",  "ds1307",},
 404         {"dallas,ds1337",  "rtc-ds1307",  "ds1337",},
 405         {"dallas,ds1338",  "rtc-ds1307",  "ds1338",},
 406         {"dallas,ds1339",  "rtc-ds1307",  "ds1339",},
 407         {"dallas,ds1340",  "rtc-ds1307",  "ds1340",},
 408         {"stm,m41t00",     "rtc-ds1307",  "m41t00"},
 409         {"dallas,ds1374",  "rtc-ds1374",  "rtc-ds1374",},
 410 };
 411
 412 static int __init of_find_i2c_driver(struct device_node *node,
 413                                      struct i2c_board_info *info)
 414 {
 415         int i;
 416
 417         for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
 418                 if (!of_device_is_compatible(node, i2c_devices[i].of_device))
 419                         continue;
 420                 if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver,
 421                             KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
 422                     strlcpy(info->type, i2c_devices[i].i2c_type,
 423                             I2C_NAME_SIZE) >= I2C_NAME_SIZE)
 424                         return -ENOMEM;
 425                 return 0;
 426         }
 427         return -ENODEV;
 428 }
 429
 430 static void __init of_register_i2c_devices(struct device_node *adap_node,
 431                                            int bus_num)
 432 {
 433         struct device_node *node = NULL;
 434
 435         while ((node = of_get_next_child(adap_node, node))) {
 436                 struct i2c_board_info info = {};
 437                 const u32 *addr;
 438                 int len;
 439
 440                 addr = of_get_property(node, "reg", &len);
 441                 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
 442                         printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
 443                         continue;
 444                 }
 445
 446                 info.irq = irq_of_parse_and_map(node, 0);
 447                 if (info.irq == NO_IRQ)
 448                         info.irq = -1;
 449
 450                 if (of_find_i2c_driver(node, &info) < 0)
 451                         continue;
 452
 453                 info.addr = *addr;
 454
 455                 i2c_register_board_info(bus_num, &info, 1);
 456         }
 457 }
 458
 459 static int __init fsl_i2c_of_init(void)
 460 {
 461         struct device_node *np;
 462         unsigned int i = 0;
 463         struct platform_device *i2c_dev;
 464         int ret;
 465
 466         for_each_compatible_node(np, NULL, "fsl-i2c") {
 467                 struct resource r[2];
 468                 struct fsl_i2c_platform_data i2c_data;
 469                 const unsigned char *flags = NULL;
 470
 471                 memset(&r, 0, sizeof(r));
 472                 memset(&i2c_data, 0, sizeof(i2c_data));
 473
 474                 ret = of_address_to_resource(np, 0, &r[0]);
 475                 if (ret)
 476                         goto err;
 477
 478                 of_irq_to_resource(np, 0, &r[1]);
 479
 480                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 481                 if (IS_ERR(i2c_dev)) {
 482                         ret = PTR_ERR(i2c_dev);
 483                         goto err;
 484                 }
 485
 486                 i2c_data.device_flags = 0;
 487                 flags = of_get_property(np, "dfsrr", NULL);
 488                 if (flags)
 489                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 490
 491                 flags = of_get_property(np, "fsl5200-clocking", NULL);
 492                 if (flags)
 493                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 494
 495                 ret =
 496                     platform_device_add_data(i2c_dev, &i2c_data,
 497                                              sizeof(struct
 498                                                     fsl_i2c_platform_data));
 499                 if (ret)
 500                         goto unreg;
 501
 502                 of_register_i2c_devices(np, i++);
 503         }
 504
 505         return 0;
 506
 507 unreg:
 508         platform_device_unregister(i2c_dev);
 509 err:
 510         return ret;
 511 }
 512
 513 arch_initcall(fsl_i2c_of_init);
 514 #endif
 515
 516 #ifdef CONFIG_PPC_83xx
 517 static int __init mpc83xx_wdt_init(void)
 518 {
 519         struct resource r;
 520         struct device_node *soc, *np;
 521         struct platform_device *dev;
 522         const unsigned int *freq;
 523         int ret;
 524
 525         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 526
 527         if (!np) {
 528                 ret = -ENODEV;
 529                 goto nodev;
 530         }
 531
 532         soc = of_find_node_by_type(NULL, "soc");
 533
 534         if (!soc) {
 535                 ret = -ENODEV;
 536                 goto nosoc;
 537         }
 538
 539         freq = of_get_property(soc, "bus-frequency", NULL);
 540         if (!freq) {
 541                 ret = -ENODEV;
 542                 goto err;
 543         }
 544
 545         memset(&r, 0, sizeof(r));
 546
 547         ret = of_address_to_resource(np, 0, &r);
 548         if (ret)
 549                 goto err;
 550
 551         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 552         if (IS_ERR(dev)) {
 553                 ret = PTR_ERR(dev);
 554                 goto err;
 555         }
 556
 557         ret = platform_device_add_data(dev, freq, sizeof(int));
 558         if (ret)
 559                 goto unreg;
 560
 561         of_node_put(soc);
 562         of_node_put(np);
 563
 564         return 0;
 565
 566 unreg:
 567         platform_device_unregister(dev);
 568 err:
 569         of_node_put(soc);
 570 nosoc:
 571         of_node_put(np);
 572 nodev:
 573         return ret;
 574 }
 575
 576 arch_initcall(mpc83xx_wdt_init);
 577 #endif
 578
 579 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 580 {
 581         if (!phy_type)
 582                 return FSL_USB2_PHY_NONE;
 583         if (!strcasecmp(phy_type, "ulpi"))
 584                 return FSL_USB2_PHY_ULPI;
 585         if (!strcasecmp(phy_type, "utmi"))
 586                 return FSL_USB2_PHY_UTMI;
 587         if (!strcasecmp(phy_type, "utmi_wide"))
 588                 return FSL_USB2_PHY_UTMI_WIDE;
 589         if (!strcasecmp(phy_type, "serial"))
 590                 return FSL_USB2_PHY_SERIAL;
 591
 592         return FSL_USB2_PHY_NONE;
 593 }
 594
 595 static int __init fsl_usb_of_init(void)
 596 {
 597         struct device_node *np;
 598         unsigned int i = 0;
 599         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
 600                 *usb_dev_dr_client = NULL;
 601         int ret;
 602
 603         for_each_compatible_node(np, NULL, "fsl-usb2-mph") {
 604                 struct resource r[2];
 605                 struct fsl_usb2_platform_data usb_data;
 606                 const unsigned char *prop = NULL;
 607
 608                 memset(&r, 0, sizeof(r));
 609                 memset(&usb_data, 0, sizeof(usb_data));
 610
 611                 ret = of_address_to_resource(np, 0, &r[0]);
 612                 if (ret)
 613                         goto err;
 614
 615                 of_irq_to_resource(np, 0, &r[1]);
 616
 617                 usb_dev_mph =
 618                     platform_device_register_simple("fsl-ehci", i, r, 2);
 619                 if (IS_ERR(usb_dev_mph)) {
 620                         ret = PTR_ERR(usb_dev_mph);
 621                         goto err;
 622                 }
 623
 624                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 625                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 626
 627                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 628
 629                 prop = of_get_property(np, "port0", NULL);
 630                 if (prop)
 631                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 632
 633                 prop = of_get_property(np, "port1", NULL);
 634                 if (prop)
 635                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 636
 637                 prop = of_get_property(np, "phy_type", NULL);
 638                 usb_data.phy_mode = determine_usb_phy(prop);
 639
 640                 ret =
 641                     platform_device_add_data(usb_dev_mph, &usb_data,
 642                                              sizeof(struct
 643                                                     fsl_usb2_platform_data));
 644                 if (ret)
 645                         goto unreg_mph;
 646                 i++;
 647         }
 648
 649         for_each_compatible_node(np, NULL, "fsl-usb2-dr") {
 650                 struct resource r[2];
 651                 struct fsl_usb2_platform_data usb_data;
 652                 const unsigned char *prop = NULL;
 653
 654                 memset(&r, 0, sizeof(r));
 655                 memset(&usb_data, 0, sizeof(usb_data));
 656
 657                 ret = of_address_to_resource(np, 0, &r[0]);
 658                 if (ret)
 659                         goto unreg_mph;
 660
 661                 of_irq_to_resource(np, 0, &r[1]);
 662
 663                 prop = of_get_property(np, "dr_mode", NULL);
 664
 665                 if (!prop || !strcmp(prop, "host")) {
 666                         usb_data.operating_mode = FSL_USB2_DR_HOST;
 667                         usb_dev_dr_host = platform_device_register_simple(
 668                                         "fsl-ehci", i, r, 2);
 669                         if (IS_ERR(usb_dev_dr_host)) {
 670                                 ret = PTR_ERR(usb_dev_dr_host);
 671                                 goto err;
 672                         }
 673                 } else if (prop && !strcmp(prop, "peripheral")) {
 674                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
 675                         usb_dev_dr_client = platform_device_register_simple(
 676                                         "fsl-usb2-udc", i, r, 2);
 677                         if (IS_ERR(usb_dev_dr_client)) {
 678                                 ret = PTR_ERR(usb_dev_dr_client);
 679                                 goto err;
 680                         }
 681                 } else if (prop && !strcmp(prop, "otg")) {
 682                         usb_data.operating_mode = FSL_USB2_DR_OTG;
 683                         usb_dev_dr_host = platform_device_register_simple(
 684                                         "fsl-ehci", i, r, 2);
 685                         if (IS_ERR(usb_dev_dr_host)) {
 686                                 ret = PTR_ERR(usb_dev_dr_host);
 687                                 goto err;
 688                         }
 689                         usb_dev_dr_client = platform_device_register_simple(
 690                                         "fsl-usb2-udc", i, r, 2);
 691                         if (IS_ERR(usb_dev_dr_client)) {
 692                                 ret = PTR_ERR(usb_dev_dr_client);
 693                                 goto err;
 694                         }
 695                 } else {
 696                         ret = -EINVAL;
 697                         goto err;
 698                 }
 699
 700                 prop = of_get_property(np, "phy_type", NULL);
 701                 usb_data.phy_mode = determine_usb_phy(prop);
 702
 703                 if (usb_dev_dr_host) {
 704                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
 705                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
 706                                 dev.coherent_dma_mask;
 707                         if ((ret = platform_device_add_data(usb_dev_dr_host,
 708                                                 &usb_data, sizeof(struct
 709                                                 fsl_usb2_platform_data))))
 710                                 goto unreg_dr;
 711                 }
 712                 if (usb_dev_dr_client) {
 713                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
 714                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
 715                                 dev.coherent_dma_mask;
 716                         if ((ret = platform_device_add_data(usb_dev_dr_client,
 717                                                 &usb_data, sizeof(struct
 718                                                 fsl_usb2_platform_data))))
 719                                 goto unreg_dr;
 720                 }
 721                 i++;
 722         }
 723         return 0;
 724
 725 unreg_dr:
 726         if (usb_dev_dr_host)
 727                 platform_device_unregister(usb_dev_dr_host);
 728         if (usb_dev_dr_client)
 729                 platform_device_unregister(usb_dev_dr_client);
 730 unreg_mph:
 731         if (usb_dev_mph)
 732                 platform_device_unregister(usb_dev_mph);
 733 err:
 734         return ret;
 735 }
 736
 737 arch_initcall(fsl_usb_of_init);
 738
 739 #ifndef CONFIG_PPC_CPM_NEW_BINDING
 740 #ifdef CONFIG_CPM2
 741
 742 extern void init_scc_ioports(struct fs_uart_platform_info*);
 743
 744 static const char fcc_regs[] = "fcc_regs";
 745 static const char fcc_regs_c[] = "fcc_regs_c";
 746 static const char fcc_pram[] = "fcc_pram";
 747 static char bus_id[9][BUS_ID_SIZE];
 748
 749 static int __init fs_enet_of_init(void)
 750 {
 751         struct device_node *np;
 752         unsigned int i;
 753         struct platform_device *fs_enet_dev;
 754         struct resource res;
 755         int ret;
 756
 757         for (np = NULL, i = 0;
 758              (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
 759              i++) {
 760                 struct resource r[4];
 761                 struct device_node *phy, *mdio;
 762                 struct fs_platform_info fs_enet_data;
 763                 const unsigned int *id, *phy_addr, *phy_irq;
 764                 const void *mac_addr;
 765                 const phandle *ph;
 766                 const char *model;
 767
 768                 memset(r, 0, sizeof(r));
 769                 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
 770
 771                 ret = of_address_to_resource(np, 0, &r[0]);
 772                 if (ret)
 773                         goto err;
 774                 r[0].name = fcc_regs;
 775
 776                 ret = of_address_to_resource(np, 1, &r[1]);
 777                 if (ret)
 778                         goto err;
 779                 r[1].name = fcc_pram;
 780
 781                 ret = of_address_to_resource(np, 2, &r[2]);
 782                 if (ret)
 783                         goto err;
 784                 r[2].name = fcc_regs_c;
 785                 fs_enet_data.fcc_regs_c = r[2].start;
 786
 787                 of_irq_to_resource(np, 0, &r[3]);
 788
 789                 fs_enet_dev =
 790                     platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);
 791
 792                 if (IS_ERR(fs_enet_dev)) {
 793                         ret = PTR_ERR(fs_enet_dev);
 794                         goto err;
 795                 }
 796
 797                 model = of_get_property(np, "model", NULL);
 798                 if (model == NULL) {
 799                         ret = -ENODEV;
 800                         goto unreg;
 801                 }
 802
 803                 mac_addr = of_get_mac_address(np);
 804                 if (mac_addr)
 805                         memcpy(fs_enet_data.macaddr, mac_addr, 6);
 806
 807                 ph = of_get_property(np, "phy-handle", NULL);
 808                 phy = of_find_node_by_phandle(*ph);
 809
 810                 if (phy == NULL) {
 811                         ret = -ENODEV;
 812                         goto unreg;
 813                 }
 814
 815                 phy_addr = of_get_property(phy, "reg", NULL);
 816                 fs_enet_data.phy_addr = *phy_addr;
 817
 818                 phy_irq = of_get_property(phy, "interrupts", NULL);
 819
 820                 id = of_get_property(np, "device-id", NULL);
 821                 fs_enet_data.fs_no = *id;
 822                 strcpy(fs_enet_data.fs_type, model);
 823
 824                 mdio = of_get_parent(phy);
 825                 ret = of_address_to_resource(mdio, 0, &res);
 826                 if (ret) {
 827                         of_node_put(phy);
 828                         of_node_put(mdio);
 829                         goto unreg;
 830                 }
 831
 832                 fs_enet_data.clk_rx = *((u32 *)of_get_property(np,
 833                                                 "rx-clock", NULL));
 834                 fs_enet_data.clk_tx = *((u32 *)of_get_property(np,
 835                                                 "tx-clock", NULL));
 836
 837                 if (strstr(model, "FCC")) {
 838                         int fcc_index = *id - 1;
 839                         const unsigned char *mdio_bb_prop;
 840
 841                         fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0);
 842                         fs_enet_data.rx_ring = 32;
 843                         fs_enet_data.tx_ring = 32;
 844                         fs_enet_data.rx_copybreak = 240;
 845                         fs_enet_data.use_napi = 0;
 846                         fs_enet_data.napi_weight = 17;
 847                         fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index);
 848                         fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index);
 849                         fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index);
 850
 851                         snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x",
 852                                                         (u32)res.start, fs_enet_data.phy_addr);
 853                         fs_enet_data.bus_id = (char*)&bus_id[(*id)];
 854                         fs_enet_data.init_ioports = init_fcc_ioports;
 855
 856                         mdio_bb_prop = of_get_property(phy, "bitbang", NULL);
 857                         if (mdio_bb_prop) {
 858                                 struct platform_device *fs_enet_mdio_bb_dev;
 859                                 struct fs_mii_bb_platform_info fs_enet_mdio_bb_data;
 860
 861                                 fs_enet_mdio_bb_dev =
 862                                         platform_device_register_simple("fsl-bb-mdio",
 863                                                         i, NULL, 0);
 864                                 memset(&fs_enet_mdio_bb_data, 0,
 865                                                 sizeof(struct fs_mii_bb_platform_info));
 866                                 fs_enet_mdio_bb_data.mdio_dat.bit =
 867                                         mdio_bb_prop[0];
 868                                 fs_enet_mdio_bb_data.mdio_dir.bit =
 869                                         mdio_bb_prop[1];
 870                                 fs_enet_mdio_bb_data.mdc_dat.bit =
 871                                         mdio_bb_prop[2];
 872                                 fs_enet_mdio_bb_data.mdio_port =
 873                                         mdio_bb_prop[3];
 874                                 fs_enet_mdio_bb_data.mdc_port =
 875                                         mdio_bb_prop[4];
 876                                 fs_enet_mdio_bb_data.delay =
 877                                         mdio_bb_prop[5];
 878
 879                                 fs_enet_mdio_bb_data.irq[0] = phy_irq[0];
 880                                 fs_enet_mdio_bb_data.irq[1] = -1;
 881                                 fs_enet_mdio_bb_data.irq[2] = -1;
 882                                 fs_enet_mdio_bb_data.irq[3] = phy_irq[0];
 883                                 fs_enet_mdio_bb_data.irq[31] = -1;
 884
 885                                 fs_enet_mdio_bb_data.mdio_dat.offset =
 886                                         (u32)&cpm2_immr->im_ioport.iop_pdatc;
 887                                 fs_enet_mdio_bb_data.mdio_dir.offset =
 888                                         (u32)&cpm2_immr->im_ioport.iop_pdirc;
 889                                 fs_enet_mdio_bb_data.mdc_dat.offset =
 890                                         (u32)&cpm2_immr->im_ioport.iop_pdatc;
 891
 892                                 ret = platform_device_add_data(
 893                                                 fs_enet_mdio_bb_dev,
 894                                                 &fs_enet_mdio_bb_data,
 895                                                 sizeof(struct fs_mii_bb_platform_info));
 896                                 if (ret)
 897                                         goto unreg;
 898                         }
 899
 900                         of_node_put(phy);
 901                         of_node_put(mdio);
 902
 903                         ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
 904                                                      sizeof(struct
 905                                                             fs_platform_info));
 906                         if (ret)
 907                                 goto unreg;
 908                 }
 909         }
 910         return 0;
 911
 912 unreg:
 913         platform_device_unregister(fs_enet_dev);
 914 err:
 915         return ret;
 916 }
 917
 918 arch_initcall(fs_enet_of_init);
 919
 920 static const char scc_regs[] = "regs";
 921 static const char scc_pram[] = "pram";
 922
 923 static int __init cpm_uart_of_init(void)
 924 {
 925         struct device_node *np;
 926         unsigned int i;
 927         struct platform_device *cpm_uart_dev;
 928         int ret;
 929
 930         for (np = NULL, i = 0;
 931              (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
 932              i++) {
 933                 struct resource r[3];
 934                 struct fs_uart_platform_info cpm_uart_data;
 935                 const int *id;
 936                 const char *model;
 937
 938                 memset(r, 0, sizeof(r));
 939                 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
 940
 941                 ret = of_address_to_resource(np, 0, &r[0]);
 942                 if (ret)
 943                         goto err;
 944
 945                 r[0].name = scc_regs;
 946
 947                 ret = of_address_to_resource(np, 1, &r[1]);
 948                 if (ret)
 949                         goto err;
 950                 r[1].name = scc_pram;
 951
 952                 of_irq_to_resource(np, 0, &r[2]);
 953
 954                 cpm_uart_dev =
 955                     platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);
 956
 957                 if (IS_ERR(cpm_uart_dev)) {
 958                         ret = PTR_ERR(cpm_uart_dev);
 959                         goto err;
 960                 }
 961
 962                 id = of_get_property(np, "device-id", NULL);
 963                 cpm_uart_data.fs_no = *id;
 964
 965                 model = of_get_property(np, "model", NULL);
 966                 strcpy(cpm_uart_data.fs_type, model);
 967
 968                 cpm_uart_data.uart_clk = ppc_proc_freq;
 969
 970                 cpm_uart_data.tx_num_fifo = 4;
 971                 cpm_uart_data.tx_buf_size = 32;
 972                 cpm_uart_data.rx_num_fifo = 4;
 973                 cpm_uart_data.rx_buf_size = 32;
 974                 cpm_uart_data.clk_rx = *((u32 *)of_get_property(np,
 975                                                 "rx-clock", NULL));
 976                 cpm_uart_data.clk_tx = *((u32 *)of_get_property(np,
 977                                                 "tx-clock", NULL));
 978
 979                 ret =
 980                     platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
 981                                              sizeof(struct
 982                                                     fs_uart_platform_info));
 983                 if (ret)
 984                         goto unreg;
 985         }
 986
 987         return 0;
 988
 989 unreg:
 990         platform_device_unregister(cpm_uart_dev);
 991 err:
 992         return ret;
 993 }
 994
 995 arch_initcall(cpm_uart_of_init);
 996 #endif /* CONFIG_CPM2 */
 997
 998 #ifdef CONFIG_8xx
 999
1000 extern void init_scc_ioports(struct fs_platform_info*);
1001 extern int platform_device_skip(const char *model, int id);
1002
1003 static int __init fs_enet_mdio_of_init(void)
1004 {
1005         struct device_node *np;
1006         unsigned int i;
1007         struct platform_device *mdio_dev;
1008         struct resource res;
1009         int ret;
1010
1011         for (np = NULL, i = 0;
1012              (np = of_find_compatible_node(np, "mdio", "fs_enet")) != NULL;
1013              i++) {
1014                 struct fs_mii_fec_platform_info mdio_data;
1015
1016                 memset(&res, 0, sizeof(res));
1017                 memset(&mdio_data, 0, sizeof(mdio_data));
1018
1019                 ret = of_address_to_resource(np, 0, &res);
1020                 if (ret)
1021                         goto err;
1022
1023                 mdio_dev =
1024                     platform_device_register_simple("fsl-cpm-fec-mdio",
1025                                                     res.start, &res, 1);
1026                 if (IS_ERR(mdio_dev)) {
1027                         ret = PTR_ERR(mdio_dev);
1028                         goto err;
1029                 }
1030
1031                 mdio_data.mii_speed = ((((ppc_proc_freq + 4999999) / 2500000) / 2) & 0x3F) << 1;
1032
1033                 ret =
1034                     platform_device_add_data(mdio_dev, &mdio_data,
1035                                              sizeof(struct fs_mii_fec_platform_info));
1036                 if (ret)
1037                         goto unreg;
1038         }
1039         return 0;
1040
1041 unreg:
1042         platform_device_unregister(mdio_dev);
1043 err:
1044         return ret;
1045 }
1046
1047 arch_initcall(fs_enet_mdio_of_init);
1048
1049 static const char *enet_regs = "regs";
1050 static const char *enet_pram = "pram";
1051 static const char *enet_irq = "interrupt";
1052 static char bus_id[9][BUS_ID_SIZE];
1053
1054 static int __init fs_enet_of_init(void)
1055 {
1056         struct device_node *np;
1057         unsigned int i;
1058         struct platform_device *fs_enet_dev = NULL;
1059         struct resource res;
1060         int ret;
1061
1062         for (np = NULL, i = 0;
1063              (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
1064              i++) {
1065                 struct resource r[4];
1066                 struct device_node *phy = NULL, *mdio = NULL;
1067                 struct fs_platform_info fs_enet_data;
1068                 const unsigned int *id;
1069                 const unsigned int *phy_addr;
1070                 const void *mac_addr;
1071                 const phandle *ph;
1072                 const char *model;
1073
1074                 memset(r, 0, sizeof(r));
1075                 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
1076
1077                 model = of_get_property(np, "model", NULL);
1078                 if (model == NULL) {
1079                         ret = -ENODEV;
1080                         goto unreg;
1081                 }
1082
1083                 id = of_get_property(np, "device-id", NULL);
1084                 fs_enet_data.fs_no = *id;
1085
1086                 if (platform_device_skip(model, *id))
1087                         continue;
1088
1089                 ret = of_address_to_resource(np, 0, &r[0]);
1090                 if (ret)
1091                         goto err;
1092                 r[0].name = enet_regs;
1093
1094                 mac_addr = of_get_mac_address(np);
1095                 if (mac_addr)
1096                         memcpy(fs_enet_data.macaddr, mac_addr, 6);
1097
1098                 ph = of_get_property(np, "phy-handle", NULL);
1099                 if (ph != NULL)
1100                         phy = of_find_node_by_phandle(*ph);
1101
1102                 if (phy != NULL) {
1103                         phy_addr = of_get_property(phy, "reg", NULL);
1104                         fs_enet_data.phy_addr = *phy_addr;
1105                         fs_enet_data.has_phy = 1;
1106
1107                         mdio = of_get_parent(phy);
1108                         ret = of_address_to_resource(mdio, 0, &res);
1109                         if (ret) {
1110                                 of_node_put(phy);
1111                                 of_node_put(mdio);
1112                                 goto unreg;
1113                         }
1114                 }
1115
1116                 model = of_get_property(np, "model", NULL);
1117                 strcpy(fs_enet_data.fs_type, model);
1118
1119                 if (strstr(model, "FEC")) {
1120                         r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
1121                         r[1].flags = IORESOURCE_IRQ;
1122                         r[1].name = enet_irq;
1123
1124                         fs_enet_dev =
1125                                     platform_device_register_simple("fsl-cpm-fec", i, &r[0], 2);
1126
1127                         if (IS_ERR(fs_enet_dev)) {
1128                                 ret = PTR_ERR(fs_enet_dev);
1129                                 goto err;
1130                         }
1131
1132                         fs_enet_data.rx_ring = 128;
1133                         fs_enet_data.tx_ring = 16;
1134                         fs_enet_data.rx_copybreak = 240;
1135                         fs_enet_data.use_napi = 1;
1136                         fs_enet_data.napi_weight = 17;
1137
1138                         snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%x:%02x",
1139                                                         (u32)res.start, fs_enet_data.phy_addr);
1140                         fs_enet_data.bus_id = (char*)&bus_id[i];
1141                         fs_enet_data.init_ioports = init_fec_ioports;
1142                 }
1143                 if (strstr(model, "SCC")) {
1144                         ret = of_address_to_resource(np, 1, &r[1]);
1145                         if (ret)
1146                                 goto err;
1147                         r[1].name = enet_pram;
1148
1149                         r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
1150                         r[2].flags = IORESOURCE_IRQ;
1151                         r[2].name = enet_irq;
1152
1153                         fs_enet_dev =
1154                                     platform_device_register_simple("fsl-cpm-scc", i, &r[0], 3);
1155
1156                         if (IS_ERR(fs_enet_dev)) {
1157                                 ret = PTR_ERR(fs_enet_dev);
1158                                 goto err;
1159                         }
1160
1161                         fs_enet_data.rx_ring = 64;
1162                         fs_enet_data.tx_ring = 8;
1163                         fs_enet_data.rx_copybreak = 240;
1164                         fs_enet_data.use_napi = 1;
1165                         fs_enet_data.napi_weight = 17;
1166
1167                         snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%s", "fixed@10:1");
1168                         fs_enet_data.bus_id = (char*)&bus_id[i];
1169                         fs_enet_data.init_ioports = init_scc_ioports;
1170                 }
1171
1172                 of_node_put(phy);
1173                 of_node_put(mdio);
1174
1175                 ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
1176                                              sizeof(struct
1177                                                     fs_platform_info));
1178                 if (ret)
1179                         goto unreg;
1180         }
1181         return 0;
1182
1183 unreg:
1184         platform_device_unregister(fs_enet_dev);
1185 err:
1186         return ret;
1187 }
1188
1189 arch_initcall(fs_enet_of_init);
1190
1191 static int __init fsl_pcmcia_of_init(void)
1192 {
1193         struct device_node *np;
1194         /*
1195          * Register all the devices which type is "pcmcia"
1196          */
1197         for_each_compatible_node(np, "pcmcia", "fsl,pq-pcmcia")
1198                 of_platform_device_create(np, "m8xx-pcmcia", NULL);
1199         return 0;
1200 }
1201
1202 arch_initcall(fsl_pcmcia_of_init);
1203
1204 static const char *smc_regs = "regs";
1205 static const char *smc_pram = "pram";
1206
1207 static int __init cpm_smc_uart_of_init(void)
1208 {
1209         struct device_node *np;
1210         unsigned int i;
1211         struct platform_device *cpm_uart_dev;
1212         int ret;
1213
1214         for (np = NULL, i = 0;
1215              (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
1216              i++) {
1217                 struct resource r[3];
1218                 struct fs_uart_platform_info cpm_uart_data;
1219                 const int *id;
1220                 const char *model;
1221
1222                 memset(r, 0, sizeof(r));
1223                 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
1224
1225                 ret = of_address_to_resource(np, 0, &r[0]);
1226                 if (ret)
1227                         goto err;
1228
1229                 r[0].name = smc_regs;
1230
1231                 ret = of_address_to_resource(np, 1, &r[1]);
1232                 if (ret)
1233                         goto err;
1234                 r[1].name = smc_pram;
1235
1236                 r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
1237                 r[2].flags = IORESOURCE_IRQ;
1238
1239                 cpm_uart_dev =
1240                     platform_device_register_simple("fsl-cpm-smc:uart", i, &r[0], 3);
1241
1242                 if (IS_ERR(cpm_uart_dev)) {
1243                         ret = PTR_ERR(cpm_uart_dev);
1244                         goto err;
1245                 }
1246
1247                 model = of_get_property(np, "model", NULL);
1248                 strcpy(cpm_uart_data.fs_type, model);
1249
1250                 id = of_get_property(np, "device-id", NULL);
1251                 cpm_uart_data.fs_no = *id;
1252                 cpm_uart_data.uart_clk = ppc_proc_freq;
1253
1254                 cpm_uart_data.tx_num_fifo = 4;
1255                 cpm_uart_data.tx_buf_size = 32;
1256                 cpm_uart_data.rx_num_fifo = 4;
1257                 cpm_uart_data.rx_buf_size = 32;
1258
1259                 ret =
1260                     platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
1261                                              sizeof(struct
1262                                                     fs_uart_platform_info));
1263                 if (ret)
1264                         goto unreg;
1265         }
1266
1267         return 0;
1268
1269 unreg:
1270         platform_device_unregister(cpm_uart_dev);
1271 err:
1272         return ret;
1273 }
1274
1275 arch_initcall(cpm_smc_uart_of_init);
1276
1277 #endif /* CONFIG_8xx */
1278 #endif /* CONFIG_PPC_CPM_NEW_BINDING */
1279
1280 static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
1281                                    struct spi_board_info *board_infos,
1282                                    unsigned int num_board_infos,
1283                                    void (*activate_cs)(u8 cs, u8 polarity),
1284                                    void (*deactivate_cs)(u8 cs, u8 polarity))
1285 {
1286         struct device_node *np;
1287         unsigned int i = 0;
1288
1289         for_each_compatible_node(np, type, compatible) {
1290                 int ret;
1291                 unsigned int j;
1292                 const void *prop;
1293                 struct resource res[2];
1294                 struct platform_device *pdev;
1295                 struct fsl_spi_platform_data pdata = {
1296                         .activate_cs = activate_cs,
1297                         .deactivate_cs = deactivate_cs,
1298                 };
1299
1300                 memset(res, 0, sizeof(res));
1301
1302                 pdata.sysclk = sysclk;
1303
1304                 prop = of_get_property(np, "reg", NULL);
1305                 if (!prop)
1306                         goto err;
1307                 pdata.bus_num = *(u32 *)prop;
1308
1309                 prop = of_get_property(np, "cell-index", NULL);
1310                 if (prop)
1311                         i = *(u32 *)prop;
1312
1313                 prop = of_get_property(np, "mode", NULL);
1314                 if (prop && !strcmp(prop, "cpu-qe"))
1315                         pdata.qe_mode = 1;
1316
1317                 for (j = 0; j < num_board_infos; j++) {
1318                         if (board_infos[j].bus_num == pdata.bus_num)
1319                                 pdata.max_chipselect++;
1320                 }
1321
1322                 if (!pdata.max_chipselect)
1323                         continue;
1324
1325                 ret = of_address_to_resource(np, 0, &res[0]);
1326                 if (ret)
1327                         goto err;
1328
1329                 ret = of_irq_to_resource(np, 0, &res[1]);
1330                 if (ret == NO_IRQ)
1331                         goto err;
1332
1333                 pdev = platform_device_alloc("mpc83xx_spi", i);
1334                 if (!pdev)
1335                         goto err;
1336
1337                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
1338                 if (ret)
1339                         goto unreg;
1340
1341                 ret = platform_device_add_resources(pdev, res,
1342                                                     ARRAY_SIZE(res));
1343                 if (ret)
1344                         goto unreg;
1345
1346                 ret = platform_device_add(pdev);
1347                 if (ret)
1348                         goto unreg;
1349
1350                 goto next;
1351 unreg:
1352                 platform_device_del(pdev);
1353 err:
1354                 pr_err("%s: registration failed\n", np->full_name);
1355 next:
1356                 i++;
1357         }
1358
1359         return i;
1360 }
1361
1362 int __init fsl_spi_init(struct spi_board_info *board_infos,
1363                         unsigned int num_board_infos,
1364                         void (*activate_cs)(u8 cs, u8 polarity),
1365                         void (*deactivate_cs)(u8 cs, u8 polarity))
1366 {
1367         u32 sysclk = -1;
1368         int ret;
1369
1370 #ifdef CONFIG_QUICC_ENGINE
1371         /* SPI controller is either clocked from QE or SoC clock */
1372         sysclk = get_brgfreq();
1373 #endif
1374         if (sysclk == -1) {
1375                 struct device_node *np;
1376                 const u32 *freq;
1377                 int size;
1378
1379                 np = of_find_node_by_type(NULL, "soc");
1380                 if (!np)
1381                         return -ENODEV;
1382
1383                 freq = of_get_property(np, "clock-frequency", &size);
1384                 if (!freq || size != sizeof(*freq) || *freq == 0) {
1385                         freq = of_get_property(np, "bus-frequency", &size);
1386                         if (!freq || size != sizeof(*freq) || *freq == 0) {
1387                                 of_node_put(np);
1388                                 return -ENODEV;
1389                         }
1390                 }
1391
1392                 sysclk = *freq;
1393                 of_node_put(np);
1394         }
1395
1396         ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
1397                                num_board_infos, activate_cs, deactivate_cs);
1398         if (!ret)
1399                 of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
1400                                  num_board_infos, activate_cs, deactivate_cs);
1401
1402         return spi_register_board_info(board_infos, num_board_infos);
1403 }
1404
1405 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
1406 static __be32 __iomem *rstcr;
1407
1408 static int __init setup_rstcr(void)
1409 {
1410         struct device_node *np;
1411         np = of_find_node_by_name(NULL, "global-utilities");
1412         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
1413                 const u32 *prop = of_get_property(np, "reg", NULL);
1414                 if (prop) {
1415                         /* map reset control register
1416                          * 0xE00B0 is offset of reset control register
1417                          */
1418                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
1419                         if (!rstcr)
1420                                 printk (KERN_EMERG "Error: reset control "
1421                                                 "register not mapped!\n");
1422                 }
1423         } else
1424                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
1425         if (np)
1426                 of_node_put(np);
1427         return 0;
1428 }
1429
1430 arch_initcall(setup_rstcr);
1431
1432 void fsl_rstcr_restart(char *cmd)
1433 {
1434         local_irq_disable();
1435         if (rstcr)
1436                 /* set reset control register */
1437                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
1438
1439         while (1) ;
1440 }
1441 #endif