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/spi/spi.h>
  28 #include <linux/fsl_devices.h>
  29 #include <linux/fs_enet_pd.h>
  30 #include <linux/fs_uart_pd.h>
  31
  32 #include <asm/system.h>
  33 #include <asm/atomic.h>
  34 #include <asm/io.h>
  35 #include <asm/irq.h>
  36 #include <asm/time.h>
  37 #include <asm/prom.h>
  38 #include <sysdev/fsl_soc.h>
  39 #include <mm/mmu_decl.h>
  40 #include <asm/cpm2.h>
  41
  42 extern void init_fcc_ioports(struct fs_platform_info*);
  43 extern void init_fec_ioports(struct fs_platform_info*);
  44 extern void init_smc_ioports(struct fs_uart_platform_info*);
  45 static phys_addr_t immrbase = -1;
  46
  47 phys_addr_t get_immrbase(void)
  48 {
  49         struct device_node *soc;
  50
  51         if (immrbase != -1)
  52                 return immrbase;
  53
  54         soc = of_find_node_by_type(NULL, "soc");
  55         if (soc) {
  56                 int size;
  57                 const void *prop = of_get_property(soc, "reg", &size);
  58
  59                 if (prop)
  60                         immrbase = of_translate_address(soc, prop);
  61                 of_node_put(soc);
  62         }
  63
  64         return immrbase;
  65 }
  66
  67 EXPORT_SYMBOL(get_immrbase);
  68
  69 #if defined(CONFIG_CPM2) || defined(CONFIG_8xx)
  70
  71 static u32 brgfreq = -1;
  72
  73 u32 get_brgfreq(void)
  74 {
  75         struct device_node *node;
  76         const unsigned int *prop;
  77         int size;
  78
  79         if (brgfreq != -1)
  80                 return brgfreq;
  81
  82         node = of_find_compatible_node(NULL, NULL, "fsl,cpm-brg");
  83         if (node) {
  84                 prop = of_get_property(node, "clock-frequency", &size);
  85                 if (prop && size == 4)
  86                         brgfreq = *prop;
  87
  88                 of_node_put(node);
  89                 return brgfreq;
  90         }
  91
  92         /* Legacy device binding -- will go away when no users are left. */
  93         node = of_find_node_by_type(NULL, "cpm");
  94         if (node) {
  95                 prop = of_get_property(node, "brg-frequency", &size);
  96                 if (prop && size == 4)
  97                         brgfreq = *prop;
  98
  99                 of_node_put(node);
 100         }
 101
 102         return brgfreq;
 103 }
 104
 105 EXPORT_SYMBOL(get_brgfreq);
 106
 107 static u32 fs_baudrate = -1;
 108
 109 u32 get_baudrate(void)
 110 {
 111         struct device_node *node;
 112
 113         if (fs_baudrate != -1)
 114                 return fs_baudrate;
 115
 116         node = of_find_node_by_type(NULL, "serial");
 117         if (node) {
 118                 int size;
 119                 const unsigned int *prop = of_get_property(node,
 120                                 "current-speed", &size);
 121
 122                 if (prop)
 123                         fs_baudrate = *prop;
 124                 of_node_put(node);
 125         }
 126
 127         return fs_baudrate;
 128 }
 129
 130 EXPORT_SYMBOL(get_baudrate);
 131 #endif /* CONFIG_CPM2 */
 132
 133 static int __init gfar_mdio_of_init(void)
 134 {
 135         struct device_node *np = NULL;
 136         struct platform_device *mdio_dev;
 137         struct resource res;
 138         int ret;
 139
 140         np = of_find_compatible_node(np, NULL, "fsl,gianfar-mdio");
 141
 142         /* try the deprecated version */
 143         if (!np)
 144                 np = of_find_compatible_node(np, "mdio", "gianfar");
 145
 146         if (np) {
 147                 int k;
 148                 struct device_node *child = NULL;
 149                 struct gianfar_mdio_data mdio_data;
 150
 151                 memset(&res, 0, sizeof(res));
 152                 memset(&mdio_data, 0, sizeof(mdio_data));
 153
 154                 ret = of_address_to_resource(np, 0, &res);
 155                 if (ret)
 156                         goto err;
 157
 158                 mdio_dev =
 159                     platform_device_register_simple("fsl-gianfar_mdio",
 160                                                     res.start, &res, 1);
 161                 if (IS_ERR(mdio_dev)) {
 162                         ret = PTR_ERR(mdio_dev);
 163                         goto err;
 164                 }
 165
 166                 for (k = 0; k < 32; k++)
 167                         mdio_data.irq[k] = PHY_POLL;
 168
 169                 while ((child = of_get_next_child(np, child)) != NULL) {
 170                         int irq = irq_of_parse_and_map(child, 0);
 171                         if (irq != NO_IRQ) {
 172                                 const u32 *id = of_get_property(child,
 173                                                         "reg", NULL);
 174                                 mdio_data.irq[*id] = irq;
 175                         }
 176                 }
 177
 178                 ret =
 179                     platform_device_add_data(mdio_dev, &mdio_data,
 180                                              sizeof(struct gianfar_mdio_data));
 181                 if (ret)
 182                         goto unreg;
 183         }
 184
 185         of_node_put(np);
 186         return 0;
 187
 188 unreg:
 189         platform_device_unregister(mdio_dev);
 190 err:
 191         of_node_put(np);
 192         return ret;
 193 }
 194
 195 arch_initcall(gfar_mdio_of_init);
 196
 197 static const char *gfar_tx_intr = "tx";
 198 static const char *gfar_rx_intr = "rx";
 199 static const char *gfar_err_intr = "error";
 200
 201
 202 static int __init gfar_of_init(void)
 203 {
 204         struct device_node *np;
 205         unsigned int i;
 206         struct platform_device *gfar_dev;
 207         struct resource res;
 208         int ret;
 209
 210         for (np = NULL, i = 0;
 211              (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
 212              i++) {
 213                 struct resource r[4];
 214                 struct device_node *phy, *mdio;
 215                 struct gianfar_platform_data gfar_data;
 216                 const unsigned int *id;
 217                 const char *model;
 218                 const char *ctype;
 219                 const void *mac_addr;
 220                 const phandle *ph;
 221                 int n_res = 2;
 222
 223                 memset(r, 0, sizeof(r));
 224                 memset(&gfar_data, 0, sizeof(gfar_data));
 225
 226                 ret = of_address_to_resource(np, 0, &r[0]);
 227                 if (ret)
 228                         goto err;
 229
 230                 of_irq_to_resource(np, 0, &r[1]);
 231
 232                 model = of_get_property(np, "model", NULL);
 233
 234                 /* If we aren't the FEC we have multiple interrupts */
 235                 if (model && strcasecmp(model, "FEC")) {
 236                         r[1].name = gfar_tx_intr;
 237
 238                         r[2].name = gfar_rx_intr;
 239                         of_irq_to_resource(np, 1, &r[2]);
 240
 241                         r[3].name = gfar_err_intr;
 242                         of_irq_to_resource(np, 2, &r[3]);
 243
 244                         n_res += 2;
 245                 }
 246
 247                 gfar_dev =
 248                     platform_device_register_simple("fsl-gianfar", i, &r[0],
 249                                                     n_res);
 250
 251                 if (IS_ERR(gfar_dev)) {
 252                         ret = PTR_ERR(gfar_dev);
 253                         goto err;
 254                 }
 255
 256                 mac_addr = of_get_mac_address(np);
 257                 if (mac_addr)
 258                         memcpy(gfar_data.mac_addr, mac_addr, 6);
 259
 260                 if (model && !strcasecmp(model, "TSEC"))
 261                         gfar_data.device_flags =
 262                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 263                             FSL_GIANFAR_DEV_HAS_COALESCE |
 264                             FSL_GIANFAR_DEV_HAS_RMON |
 265                             FSL_GIANFAR_DEV_HAS_MULTI_INTR;
 266                 if (model && !strcasecmp(model, "eTSEC"))
 267                         gfar_data.device_flags =
 268                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 269                             FSL_GIANFAR_DEV_HAS_COALESCE |
 270                             FSL_GIANFAR_DEV_HAS_RMON |
 271                             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
 272                             FSL_GIANFAR_DEV_HAS_CSUM |
 273                             FSL_GIANFAR_DEV_HAS_VLAN |
 274                             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 275
 276                 ctype = of_get_property(np, "phy-connection-type", NULL);
 277
 278                 /* We only care about rgmii-id.  The rest are autodetected */
 279                 if (ctype && !strcmp(ctype, "rgmii-id"))
 280                         gfar_data.interface = PHY_INTERFACE_MODE_RGMII_ID;
 281                 else
 282                         gfar_data.interface = PHY_INTERFACE_MODE_MII;
 283
 284                 ph = of_get_property(np, "phy-handle", NULL);
 285                 phy = of_find_node_by_phandle(*ph);
 286
 287                 if (phy == NULL) {
 288                         ret = -ENODEV;
 289                         goto unreg;
 290                 }
 291
 292                 mdio = of_get_parent(phy);
 293
 294                 id = of_get_property(phy, "reg", NULL);
 295                 ret = of_address_to_resource(mdio, 0, &res);
 296                 if (ret) {
 297                         of_node_put(phy);
 298                         of_node_put(mdio);
 299                         goto unreg;
 300                 }
 301
 302                 gfar_data.phy_id = *id;
 303                 gfar_data.bus_id = res.start;
 304
 305                 of_node_put(phy);
 306                 of_node_put(mdio);
 307
 308                 ret =
 309                     platform_device_add_data(gfar_dev, &gfar_data,
 310                                              sizeof(struct
 311                                                     gianfar_platform_data));
 312                 if (ret)
 313                         goto unreg;
 314         }
 315
 316         return 0;
 317
 318 unreg:
 319         platform_device_unregister(gfar_dev);
 320 err:
 321         return ret;
 322 }
 323
 324 arch_initcall(gfar_of_init);
 325
 326 #ifdef CONFIG_I2C_BOARDINFO
 327 #include <linux/i2c.h>
 328 struct i2c_driver_device {
 329         char    *of_device;
 330         char    *i2c_driver;
 331         char    *i2c_type;
 332 };
 333
 334 static struct i2c_driver_device i2c_devices[] __initdata = {
 335         {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",},
 336         {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",},
 337         {"ricoh,rv5c386",  "rtc-rs5c372", "rv5c386",},
 338         {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",},
 339         {"dallas,ds1307",  "rtc-ds1307",  "ds1307",},
 340         {"dallas,ds1337",  "rtc-ds1307",  "ds1337",},
 341         {"dallas,ds1338",  "rtc-ds1307",  "ds1338",},
 342         {"dallas,ds1339",  "rtc-ds1307",  "ds1339",},
 343         {"dallas,ds1340",  "rtc-ds1307",  "ds1340",},
 344         {"stm,m41t00",     "rtc-ds1307",  "m41t00"},
 345         {"dallas,ds1374",  "rtc-ds1374",  "rtc-ds1374",},
 346 };
 347
 348 static int __init of_find_i2c_driver(struct device_node *node,
 349                                      struct i2c_board_info *info)
 350 {
 351         int i;
 352
 353         for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) {
 354                 if (!of_device_is_compatible(node, i2c_devices[i].of_device))
 355                         continue;
 356                 if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver,
 357                             KOBJ_NAME_LEN) >= KOBJ_NAME_LEN ||
 358                     strlcpy(info->type, i2c_devices[i].i2c_type,
 359                             I2C_NAME_SIZE) >= I2C_NAME_SIZE)
 360                         return -ENOMEM;
 361                 return 0;
 362         }
 363         return -ENODEV;
 364 }
 365
 366 static void __init of_register_i2c_devices(struct device_node *adap_node,
 367                                            int bus_num)
 368 {
 369         struct device_node *node = NULL;
 370
 371         while ((node = of_get_next_child(adap_node, node))) {
 372                 struct i2c_board_info info = {};
 373                 const u32 *addr;
 374                 int len;
 375
 376                 addr = of_get_property(node, "reg", &len);
 377                 if (!addr || len < sizeof(int) || *addr > (1 << 10) - 1) {
 378                         printk(KERN_WARNING "fsl_soc.c: invalid i2c device entry\n");
 379                         continue;
 380                 }
 381
 382                 info.irq = irq_of_parse_and_map(node, 0);
 383                 if (info.irq == NO_IRQ)
 384                         info.irq = -1;
 385
 386                 if (of_find_i2c_driver(node, &info) < 0)
 387                         continue;
 388
 389                 info.addr = *addr;
 390
 391                 i2c_register_board_info(bus_num, &info, 1);
 392         }
 393 }
 394
 395 static int __init fsl_i2c_of_init(void)
 396 {
 397         struct device_node *np;
 398         unsigned int i = 0;
 399         struct platform_device *i2c_dev;
 400         int ret;
 401
 402         for_each_compatible_node(np, NULL, "fsl-i2c") {
 403                 struct resource r[2];
 404                 struct fsl_i2c_platform_data i2c_data;
 405                 const unsigned char *flags = NULL;
 406
 407                 memset(&r, 0, sizeof(r));
 408                 memset(&i2c_data, 0, sizeof(i2c_data));
 409
 410                 ret = of_address_to_resource(np, 0, &r[0]);
 411                 if (ret)
 412                         goto err;
 413
 414                 of_irq_to_resource(np, 0, &r[1]);
 415
 416                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 417                 if (IS_ERR(i2c_dev)) {
 418                         ret = PTR_ERR(i2c_dev);
 419                         goto err;
 420                 }
 421
 422                 i2c_data.device_flags = 0;
 423                 flags = of_get_property(np, "dfsrr", NULL);
 424                 if (flags)
 425                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 426
 427                 flags = of_get_property(np, "fsl5200-clocking", NULL);
 428                 if (flags)
 429                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 430
 431                 ret =
 432                     platform_device_add_data(i2c_dev, &i2c_data,
 433                                              sizeof(struct
 434                                                     fsl_i2c_platform_data));
 435                 if (ret)
 436                         goto unreg;
 437
 438                 of_register_i2c_devices(np, i++);
 439         }
 440
 441         return 0;
 442
 443 unreg:
 444         platform_device_unregister(i2c_dev);
 445 err:
 446         return ret;
 447 }
 448
 449 arch_initcall(fsl_i2c_of_init);
 450 #endif
 451
 452 #ifdef CONFIG_PPC_83xx
 453 static int __init mpc83xx_wdt_init(void)
 454 {
 455         struct resource r;
 456         struct device_node *soc, *np;
 457         struct platform_device *dev;
 458         const unsigned int *freq;
 459         int ret;
 460
 461         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 462
 463         if (!np) {
 464                 ret = -ENODEV;
 465                 goto nodev;
 466         }
 467
 468         soc = of_find_node_by_type(NULL, "soc");
 469
 470         if (!soc) {
 471                 ret = -ENODEV;
 472                 goto nosoc;
 473         }
 474
 475         freq = of_get_property(soc, "bus-frequency", NULL);
 476         if (!freq) {
 477                 ret = -ENODEV;
 478                 goto err;
 479         }
 480
 481         memset(&r, 0, sizeof(r));
 482
 483         ret = of_address_to_resource(np, 0, &r);
 484         if (ret)
 485                 goto err;
 486
 487         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 488         if (IS_ERR(dev)) {
 489                 ret = PTR_ERR(dev);
 490                 goto err;
 491         }
 492
 493         ret = platform_device_add_data(dev, freq, sizeof(int));
 494         if (ret)
 495                 goto unreg;
 496
 497         of_node_put(soc);
 498         of_node_put(np);
 499
 500         return 0;
 501
 502 unreg:
 503         platform_device_unregister(dev);
 504 err:
 505         of_node_put(soc);
 506 nosoc:
 507         of_node_put(np);
 508 nodev:
 509         return ret;
 510 }
 511
 512 arch_initcall(mpc83xx_wdt_init);
 513 #endif
 514
 515 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 516 {
 517         if (!phy_type)
 518                 return FSL_USB2_PHY_NONE;
 519         if (!strcasecmp(phy_type, "ulpi"))
 520                 return FSL_USB2_PHY_ULPI;
 521         if (!strcasecmp(phy_type, "utmi"))
 522                 return FSL_USB2_PHY_UTMI;
 523         if (!strcasecmp(phy_type, "utmi_wide"))
 524                 return FSL_USB2_PHY_UTMI_WIDE;
 525         if (!strcasecmp(phy_type, "serial"))
 526                 return FSL_USB2_PHY_SERIAL;
 527
 528         return FSL_USB2_PHY_NONE;
 529 }
 530
 531 static int __init fsl_usb_of_init(void)
 532 {
 533         struct device_node *np;
 534         unsigned int i;
 535         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
 536                 *usb_dev_dr_client = NULL;
 537         int ret;
 538
 539         for (np = NULL, i = 0;
 540              (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
 541              i++) {
 542                 struct resource r[2];
 543                 struct fsl_usb2_platform_data usb_data;
 544                 const unsigned char *prop = NULL;
 545
 546                 memset(&r, 0, sizeof(r));
 547                 memset(&usb_data, 0, sizeof(usb_data));
 548
 549                 ret = of_address_to_resource(np, 0, &r[0]);
 550                 if (ret)
 551                         goto err;
 552
 553                 of_irq_to_resource(np, 0, &r[1]);
 554
 555                 usb_dev_mph =
 556                     platform_device_register_simple("fsl-ehci", i, r, 2);
 557                 if (IS_ERR(usb_dev_mph)) {
 558                         ret = PTR_ERR(usb_dev_mph);
 559                         goto err;
 560                 }
 561
 562                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 563                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 564
 565                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 566
 567                 prop = of_get_property(np, "port0", NULL);
 568                 if (prop)
 569                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 570
 571                 prop = of_get_property(np, "port1", NULL);
 572                 if (prop)
 573                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 574
 575                 prop = of_get_property(np, "phy_type", NULL);
 576                 usb_data.phy_mode = determine_usb_phy(prop);
 577
 578                 ret =
 579                     platform_device_add_data(usb_dev_mph, &usb_data,
 580                                              sizeof(struct
 581                                                     fsl_usb2_platform_data));
 582                 if (ret)
 583                         goto unreg_mph;
 584         }
 585
 586         for (np = NULL;
 587              (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
 588              i++) {
 589                 struct resource r[2];
 590                 struct fsl_usb2_platform_data usb_data;
 591                 const unsigned char *prop = NULL;
 592
 593                 memset(&r, 0, sizeof(r));
 594                 memset(&usb_data, 0, sizeof(usb_data));
 595
 596                 ret = of_address_to_resource(np, 0, &r[0]);
 597                 if (ret)
 598                         goto unreg_mph;
 599
 600                 of_irq_to_resource(np, 0, &r[1]);
 601
 602                 prop = of_get_property(np, "dr_mode", NULL);
 603
 604                 if (!prop || !strcmp(prop, "host")) {
 605                         usb_data.operating_mode = FSL_USB2_DR_HOST;
 606                         usb_dev_dr_host = platform_device_register_simple(
 607                                         "fsl-ehci", i, r, 2);
 608                         if (IS_ERR(usb_dev_dr_host)) {
 609                                 ret = PTR_ERR(usb_dev_dr_host);
 610                                 goto err;
 611                         }
 612                 } else if (prop && !strcmp(prop, "peripheral")) {
 613                         usb_data.operating_mode = FSL_USB2_DR_DEVICE;
 614                         usb_dev_dr_client = platform_device_register_simple(
 615                                         "fsl-usb2-udc", i, r, 2);
 616                         if (IS_ERR(usb_dev_dr_client)) {
 617                                 ret = PTR_ERR(usb_dev_dr_client);
 618                                 goto err;
 619                         }
 620                 } else if (prop && !strcmp(prop, "otg")) {
 621                         usb_data.operating_mode = FSL_USB2_DR_OTG;
 622                         usb_dev_dr_host = platform_device_register_simple(
 623                                         "fsl-ehci", i, r, 2);
 624                         if (IS_ERR(usb_dev_dr_host)) {
 625                                 ret = PTR_ERR(usb_dev_dr_host);
 626                                 goto err;
 627                         }
 628                         usb_dev_dr_client = platform_device_register_simple(
 629                                         "fsl-usb2-udc", i, r, 2);
 630                         if (IS_ERR(usb_dev_dr_client)) {
 631                                 ret = PTR_ERR(usb_dev_dr_client);
 632                                 goto err;
 633                         }
 634                 } else {
 635                         ret = -EINVAL;
 636                         goto err;
 637                 }
 638
 639                 prop = of_get_property(np, "phy_type", NULL);
 640                 usb_data.phy_mode = determine_usb_phy(prop);
 641
 642                 if (usb_dev_dr_host) {
 643                         usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
 644                         usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
 645                                 dev.coherent_dma_mask;
 646                         if ((ret = platform_device_add_data(usb_dev_dr_host,
 647                                                 &usb_data, sizeof(struct
 648                                                 fsl_usb2_platform_data))))
 649                                 goto unreg_dr;
 650                 }
 651                 if (usb_dev_dr_client) {
 652                         usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
 653                         usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
 654                                 dev.coherent_dma_mask;
 655                         if ((ret = platform_device_add_data(usb_dev_dr_client,
 656                                                 &usb_data, sizeof(struct
 657                                                 fsl_usb2_platform_data))))
 658                                 goto unreg_dr;
 659                 }
 660         }
 661         return 0;
 662
 663 unreg_dr:
 664         if (usb_dev_dr_host)
 665                 platform_device_unregister(usb_dev_dr_host);
 666         if (usb_dev_dr_client)
 667                 platform_device_unregister(usb_dev_dr_client);
 668 unreg_mph:
 669         if (usb_dev_mph)
 670                 platform_device_unregister(usb_dev_mph);
 671 err:
 672         return ret;
 673 }
 674
 675 arch_initcall(fsl_usb_of_init);
 676
 677 #ifndef CONFIG_PPC_CPM_NEW_BINDING
 678 #ifdef CONFIG_CPM2
 679
 680 extern void init_scc_ioports(struct fs_uart_platform_info*);
 681
 682 static const char fcc_regs[] = "fcc_regs";
 683 static const char fcc_regs_c[] = "fcc_regs_c";
 684 static const char fcc_pram[] = "fcc_pram";
 685 static char bus_id[9][BUS_ID_SIZE];
 686
 687 static int __init fs_enet_of_init(void)
 688 {
 689         struct device_node *np;
 690         unsigned int i;
 691         struct platform_device *fs_enet_dev;
 692         struct resource res;
 693         int ret;
 694
 695         for (np = NULL, i = 0;
 696              (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
 697              i++) {
 698                 struct resource r[4];
 699                 struct device_node *phy, *mdio;
 700                 struct fs_platform_info fs_enet_data;
 701                 const unsigned int *id, *phy_addr, *phy_irq;
 702                 const void *mac_addr;
 703                 const phandle *ph;
 704                 const char *model;
 705
 706                 memset(r, 0, sizeof(r));
 707                 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
 708
 709                 ret = of_address_to_resource(np, 0, &r[0]);
 710                 if (ret)
 711                         goto err;
 712                 r[0].name = fcc_regs;
 713
 714                 ret = of_address_to_resource(np, 1, &r[1]);
 715                 if (ret)
 716                         goto err;
 717                 r[1].name = fcc_pram;
 718
 719                 ret = of_address_to_resource(np, 2, &r[2]);
 720                 if (ret)
 721                         goto err;
 722                 r[2].name = fcc_regs_c;
 723                 fs_enet_data.fcc_regs_c = r[2].start;
 724
 725                 of_irq_to_resource(np, 0, &r[3]);
 726
 727                 fs_enet_dev =
 728                     platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);
 729
 730                 if (IS_ERR(fs_enet_dev)) {
 731                         ret = PTR_ERR(fs_enet_dev);
 732                         goto err;
 733                 }
 734
 735                 model = of_get_property(np, "model", NULL);
 736                 if (model == NULL) {
 737                         ret = -ENODEV;
 738                         goto unreg;
 739                 }
 740
 741                 mac_addr = of_get_mac_address(np);
 742                 if (mac_addr)
 743                         memcpy(fs_enet_data.macaddr, mac_addr, 6);
 744
 745                 ph = of_get_property(np, "phy-handle", NULL);
 746                 phy = of_find_node_by_phandle(*ph);
 747
 748                 if (phy == NULL) {
 749                         ret = -ENODEV;
 750                         goto unreg;
 751                 }
 752
 753                 phy_addr = of_get_property(phy, "reg", NULL);
 754                 fs_enet_data.phy_addr = *phy_addr;
 755
 756                 phy_irq = of_get_property(phy, "interrupts", NULL);
 757
 758                 id = of_get_property(np, "device-id", NULL);
 759                 fs_enet_data.fs_no = *id;
 760                 strcpy(fs_enet_data.fs_type, model);
 761
 762                 mdio = of_get_parent(phy);
 763                 ret = of_address_to_resource(mdio, 0, &res);
 764                 if (ret) {
 765                         of_node_put(phy);
 766                         of_node_put(mdio);
 767                         goto unreg;
 768                 }
 769
 770                 fs_enet_data.clk_rx = *((u32 *)of_get_property(np,
 771                                                 "rx-clock", NULL));
 772                 fs_enet_data.clk_tx = *((u32 *)of_get_property(np,
 773                                                 "tx-clock", NULL));
 774
 775                 if (strstr(model, "FCC")) {
 776                         int fcc_index = *id - 1;
 777                         const unsigned char *mdio_bb_prop;
 778
 779                         fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0);
 780                         fs_enet_data.rx_ring = 32;
 781                         fs_enet_data.tx_ring = 32;
 782                         fs_enet_data.rx_copybreak = 240;
 783                         fs_enet_data.use_napi = 0;
 784                         fs_enet_data.napi_weight = 17;
 785                         fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index);
 786                         fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index);
 787                         fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index);
 788
 789                         snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x",
 790                                                         (u32)res.start, fs_enet_data.phy_addr);
 791                         fs_enet_data.bus_id = (char*)&bus_id[(*id)];
 792                         fs_enet_data.init_ioports = init_fcc_ioports;
 793
 794                         mdio_bb_prop = of_get_property(phy, "bitbang", NULL);
 795                         if (mdio_bb_prop) {
 796                                 struct platform_device *fs_enet_mdio_bb_dev;
 797                                 struct fs_mii_bb_platform_info fs_enet_mdio_bb_data;
 798
 799                                 fs_enet_mdio_bb_dev =
 800                                         platform_device_register_simple("fsl-bb-mdio",
 801                                                         i, NULL, 0);
 802                                 memset(&fs_enet_mdio_bb_data, 0,
 803                                                 sizeof(struct fs_mii_bb_platform_info));
 804                                 fs_enet_mdio_bb_data.mdio_dat.bit =
 805                                         mdio_bb_prop[0];
 806                                 fs_enet_mdio_bb_data.mdio_dir.bit =
 807                                         mdio_bb_prop[1];
 808                                 fs_enet_mdio_bb_data.mdc_dat.bit =
 809                                         mdio_bb_prop[2];
 810                                 fs_enet_mdio_bb_data.mdio_port =
 811                                         mdio_bb_prop[3];
 812                                 fs_enet_mdio_bb_data.mdc_port =
 813                                         mdio_bb_prop[4];
 814                                 fs_enet_mdio_bb_data.delay =
 815                                         mdio_bb_prop[5];
 816
 817                                 fs_enet_mdio_bb_data.irq[0] = phy_irq[0];
 818                                 fs_enet_mdio_bb_data.irq[1] = -1;
 819                                 fs_enet_mdio_bb_data.irq[2] = -1;
 820                                 fs_enet_mdio_bb_data.irq[3] = phy_irq[0];
 821                                 fs_enet_mdio_bb_data.irq[31] = -1;
 822
 823                                 fs_enet_mdio_bb_data.mdio_dat.offset =
 824                                         (u32)&cpm2_immr->im_ioport.iop_pdatc;
 825                                 fs_enet_mdio_bb_data.mdio_dir.offset =
 826                                         (u32)&cpm2_immr->im_ioport.iop_pdirc;
 827                                 fs_enet_mdio_bb_data.mdc_dat.offset =
 828                                         (u32)&cpm2_immr->im_ioport.iop_pdatc;
 829
 830                                 ret = platform_device_add_data(
 831                                                 fs_enet_mdio_bb_dev,
 832                                                 &fs_enet_mdio_bb_data,
 833                                                 sizeof(struct fs_mii_bb_platform_info));
 834                                 if (ret)
 835                                         goto unreg;
 836                         }
 837
 838                         of_node_put(phy);
 839                         of_node_put(mdio);
 840
 841                         ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
 842                                                      sizeof(struct
 843                                                             fs_platform_info));
 844                         if (ret)
 845                                 goto unreg;
 846                 }
 847         }
 848         return 0;
 849
 850 unreg:
 851         platform_device_unregister(fs_enet_dev);
 852 err:
 853         return ret;
 854 }
 855
 856 arch_initcall(fs_enet_of_init);
 857
 858 static const char scc_regs[] = "regs";
 859 static const char scc_pram[] = "pram";
 860
 861 static int __init cpm_uart_of_init(void)
 862 {
 863         struct device_node *np;
 864         unsigned int i;
 865         struct platform_device *cpm_uart_dev;
 866         int ret;
 867
 868         for (np = NULL, i = 0;
 869              (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
 870              i++) {
 871                 struct resource r[3];
 872                 struct fs_uart_platform_info cpm_uart_data;
 873                 const int *id;
 874                 const char *model;
 875
 876                 memset(r, 0, sizeof(r));
 877                 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
 878
 879                 ret = of_address_to_resource(np, 0, &r[0]);
 880                 if (ret)
 881                         goto err;
 882
 883                 r[0].name = scc_regs;
 884
 885                 ret = of_address_to_resource(np, 1, &r[1]);
 886                 if (ret)
 887                         goto err;
 888                 r[1].name = scc_pram;
 889
 890                 of_irq_to_resource(np, 0, &r[2]);
 891
 892                 cpm_uart_dev =
 893                     platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);
 894
 895                 if (IS_ERR(cpm_uart_dev)) {
 896                         ret = PTR_ERR(cpm_uart_dev);
 897                         goto err;
 898                 }
 899
 900                 id = of_get_property(np, "device-id", NULL);
 901                 cpm_uart_data.fs_no = *id;
 902
 903                 model = of_get_property(np, "model", NULL);
 904                 strcpy(cpm_uart_data.fs_type, model);
 905
 906                 cpm_uart_data.uart_clk = ppc_proc_freq;
 907
 908                 cpm_uart_data.tx_num_fifo = 4;
 909                 cpm_uart_data.tx_buf_size = 32;
 910                 cpm_uart_data.rx_num_fifo = 4;
 911                 cpm_uart_data.rx_buf_size = 32;
 912                 cpm_uart_data.clk_rx = *((u32 *)of_get_property(np,
 913                                                 "rx-clock", NULL));
 914                 cpm_uart_data.clk_tx = *((u32 *)of_get_property(np,
 915                                                 "tx-clock", NULL));
 916
 917                 ret =
 918                     platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
 919                                              sizeof(struct
 920                                                     fs_uart_platform_info));
 921                 if (ret)
 922                         goto unreg;
 923         }
 924
 925         return 0;
 926
 927 unreg:
 928         platform_device_unregister(cpm_uart_dev);
 929 err:
 930         return ret;
 931 }
 932
 933 arch_initcall(cpm_uart_of_init);
 934 #endif /* CONFIG_CPM2 */
 935
 936 #ifdef CONFIG_8xx
 937
 938 extern void init_scc_ioports(struct fs_platform_info*);
 939 extern int platform_device_skip(const char *model, int id);
 940
 941 static int __init fs_enet_mdio_of_init(void)
 942 {
 943         struct device_node *np;
 944         unsigned int i;
 945         struct platform_device *mdio_dev;
 946         struct resource res;
 947         int ret;
 948
 949         for (np = NULL, i = 0;
 950              (np = of_find_compatible_node(np, "mdio", "fs_enet")) != NULL;
 951              i++) {
 952                 struct fs_mii_fec_platform_info mdio_data;
 953
 954                 memset(&res, 0, sizeof(res));
 955                 memset(&mdio_data, 0, sizeof(mdio_data));
 956
 957                 ret = of_address_to_resource(np, 0, &res);
 958                 if (ret)
 959                         goto err;
 960
 961                 mdio_dev =
 962                     platform_device_register_simple("fsl-cpm-fec-mdio",
 963                                                     res.start, &res, 1);
 964                 if (IS_ERR(mdio_dev)) {
 965                         ret = PTR_ERR(mdio_dev);
 966                         goto err;
 967                 }
 968
 969                 mdio_data.mii_speed = ((((ppc_proc_freq + 4999999) / 2500000) / 2) & 0x3F) << 1;
 970
 971                 ret =
 972                     platform_device_add_data(mdio_dev, &mdio_data,
 973                                              sizeof(struct fs_mii_fec_platform_info));
 974                 if (ret)
 975                         goto unreg;
 976         }
 977         return 0;
 978
 979 unreg:
 980         platform_device_unregister(mdio_dev);
 981 err:
 982         return ret;
 983 }
 984
 985 arch_initcall(fs_enet_mdio_of_init);
 986
 987 static const char *enet_regs = "regs";
 988 static const char *enet_pram = "pram";
 989 static const char *enet_irq = "interrupt";
 990 static char bus_id[9][BUS_ID_SIZE];
 991
 992 static int __init fs_enet_of_init(void)
 993 {
 994         struct device_node *np;
 995         unsigned int i;
 996         struct platform_device *fs_enet_dev = NULL;
 997         struct resource res;
 998         int ret;
 999
1000         for (np = NULL, i = 0;
1001              (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
1002              i++) {
1003                 struct resource r[4];
1004                 struct device_node *phy = NULL, *mdio = NULL;
1005                 struct fs_platform_info fs_enet_data;
1006                 const unsigned int *id;
1007                 const unsigned int *phy_addr;
1008                 const void *mac_addr;
1009                 const phandle *ph;
1010                 const char *model;
1011
1012                 memset(r, 0, sizeof(r));
1013                 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
1014
1015                 model = of_get_property(np, "model", NULL);
1016                 if (model == NULL) {
1017                         ret = -ENODEV;
1018                         goto unreg;
1019                 }
1020
1021                 id = of_get_property(np, "device-id", NULL);
1022                 fs_enet_data.fs_no = *id;
1023
1024                 if (platform_device_skip(model, *id))
1025                         continue;
1026
1027                 ret = of_address_to_resource(np, 0, &r[0]);
1028                 if (ret)
1029                         goto err;
1030                 r[0].name = enet_regs;
1031
1032                 mac_addr = of_get_mac_address(np);
1033                 if (mac_addr)
1034                         memcpy(fs_enet_data.macaddr, mac_addr, 6);
1035
1036                 ph = of_get_property(np, "phy-handle", NULL);
1037                 if (ph != NULL)
1038                         phy = of_find_node_by_phandle(*ph);
1039
1040                 if (phy != NULL) {
1041                         phy_addr = of_get_property(phy, "reg", NULL);
1042                         fs_enet_data.phy_addr = *phy_addr;
1043                         fs_enet_data.has_phy = 1;
1044
1045                         mdio = of_get_parent(phy);
1046                         ret = of_address_to_resource(mdio, 0, &res);
1047                         if (ret) {
1048                                 of_node_put(phy);
1049                                 of_node_put(mdio);
1050                                 goto unreg;
1051                         }
1052                 }
1053
1054                 model = of_get_property(np, "model", NULL);
1055                 strcpy(fs_enet_data.fs_type, model);
1056
1057                 if (strstr(model, "FEC")) {
1058                         r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
1059                         r[1].flags = IORESOURCE_IRQ;
1060                         r[1].name = enet_irq;
1061
1062                         fs_enet_dev =
1063                                     platform_device_register_simple("fsl-cpm-fec", i, &r[0], 2);
1064
1065                         if (IS_ERR(fs_enet_dev)) {
1066                                 ret = PTR_ERR(fs_enet_dev);
1067                                 goto err;
1068                         }
1069
1070                         fs_enet_data.rx_ring = 128;
1071                         fs_enet_data.tx_ring = 16;
1072                         fs_enet_data.rx_copybreak = 240;
1073                         fs_enet_data.use_napi = 1;
1074                         fs_enet_data.napi_weight = 17;
1075
1076                         snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%x:%02x",
1077                                                         (u32)res.start, fs_enet_data.phy_addr);
1078                         fs_enet_data.bus_id = (char*)&bus_id[i];
1079                         fs_enet_data.init_ioports = init_fec_ioports;
1080                 }
1081                 if (strstr(model, "SCC")) {
1082                         ret = of_address_to_resource(np, 1, &r[1]);
1083                         if (ret)
1084                                 goto err;
1085                         r[1].name = enet_pram;
1086
1087                         r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
1088                         r[2].flags = IORESOURCE_IRQ;
1089                         r[2].name = enet_irq;
1090
1091                         fs_enet_dev =
1092                                     platform_device_register_simple("fsl-cpm-scc", i, &r[0], 3);
1093
1094                         if (IS_ERR(fs_enet_dev)) {
1095                                 ret = PTR_ERR(fs_enet_dev);
1096                                 goto err;
1097                         }
1098
1099                         fs_enet_data.rx_ring = 64;
1100                         fs_enet_data.tx_ring = 8;
1101                         fs_enet_data.rx_copybreak = 240;
1102                         fs_enet_data.use_napi = 1;
1103                         fs_enet_data.napi_weight = 17;
1104
1105                         snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%s", "fixed@10:1");
1106                         fs_enet_data.bus_id = (char*)&bus_id[i];
1107                         fs_enet_data.init_ioports = init_scc_ioports;
1108                 }
1109
1110                 of_node_put(phy);
1111                 of_node_put(mdio);
1112
1113                 ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
1114                                              sizeof(struct
1115                                                     fs_platform_info));
1116                 if (ret)
1117                         goto unreg;
1118         }
1119         return 0;
1120
1121 unreg:
1122         platform_device_unregister(fs_enet_dev);
1123 err:
1124         return ret;
1125 }
1126
1127 arch_initcall(fs_enet_of_init);
1128
1129 static int __init fsl_pcmcia_of_init(void)
1130 {
1131         struct device_node *np = NULL;
1132         /*
1133          * Register all the devices which type is "pcmcia"
1134          */
1135         while ((np = of_find_compatible_node(np,
1136                         "pcmcia", "fsl,pq-pcmcia")) != NULL)
1137                             of_platform_device_create(np, "m8xx-pcmcia", NULL);
1138         return 0;
1139 }
1140
1141 arch_initcall(fsl_pcmcia_of_init);
1142
1143 static const char *smc_regs = "regs";
1144 static const char *smc_pram = "pram";
1145
1146 static int __init cpm_smc_uart_of_init(void)
1147 {
1148         struct device_node *np;
1149         unsigned int i;
1150         struct platform_device *cpm_uart_dev;
1151         int ret;
1152
1153         for (np = NULL, i = 0;
1154              (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
1155              i++) {
1156                 struct resource r[3];
1157                 struct fs_uart_platform_info cpm_uart_data;
1158                 const int *id;
1159                 const char *model;
1160
1161                 memset(r, 0, sizeof(r));
1162                 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
1163
1164                 ret = of_address_to_resource(np, 0, &r[0]);
1165                 if (ret)
1166                         goto err;
1167
1168                 r[0].name = smc_regs;
1169
1170                 ret = of_address_to_resource(np, 1, &r[1]);
1171                 if (ret)
1172                         goto err;
1173                 r[1].name = smc_pram;
1174
1175                 r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
1176                 r[2].flags = IORESOURCE_IRQ;
1177
1178                 cpm_uart_dev =
1179                     platform_device_register_simple("fsl-cpm-smc:uart", i, &r[0], 3);
1180
1181                 if (IS_ERR(cpm_uart_dev)) {
1182                         ret = PTR_ERR(cpm_uart_dev);
1183                         goto err;
1184                 }
1185
1186                 model = of_get_property(np, "model", NULL);
1187                 strcpy(cpm_uart_data.fs_type, model);
1188
1189                 id = of_get_property(np, "device-id", NULL);
1190                 cpm_uart_data.fs_no = *id;
1191                 cpm_uart_data.uart_clk = ppc_proc_freq;
1192
1193                 cpm_uart_data.tx_num_fifo = 4;
1194                 cpm_uart_data.tx_buf_size = 32;
1195                 cpm_uart_data.rx_num_fifo = 4;
1196                 cpm_uart_data.rx_buf_size = 32;
1197
1198                 ret =
1199                     platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
1200                                              sizeof(struct
1201                                                     fs_uart_platform_info));
1202                 if (ret)
1203                         goto unreg;
1204         }
1205
1206         return 0;
1207
1208 unreg:
1209         platform_device_unregister(cpm_uart_dev);
1210 err:
1211         return ret;
1212 }
1213
1214 arch_initcall(cpm_smc_uart_of_init);
1215
1216 #endif /* CONFIG_8xx */
1217 #endif /* CONFIG_PPC_CPM_NEW_BINDING */
1218
1219 int __init fsl_spi_init(struct spi_board_info *board_infos,
1220                         unsigned int num_board_infos,
1221                         void (*activate_cs)(u8 cs, u8 polarity),
1222                         void (*deactivate_cs)(u8 cs, u8 polarity))
1223 {
1224         struct device_node *np;
1225         unsigned int i;
1226         const u32 *sysclk;
1227
1228         /* SPI controller is either clocked from QE or SoC clock */
1229         np = of_find_node_by_type(NULL, "qe");
1230         if (!np)
1231                 np = of_find_node_by_type(NULL, "soc");
1232
1233         if (!np)
1234                 return -ENODEV;
1235
1236         sysclk = of_get_property(np, "bus-frequency", NULL);
1237         if (!sysclk)
1238                 return -ENODEV;
1239
1240         for (np = NULL, i = 1;
1241              (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
1242              i++) {
1243                 int ret = 0;
1244                 unsigned int j;
1245                 const void *prop;
1246                 struct resource res[2];
1247                 struct platform_device *pdev;
1248                 struct fsl_spi_platform_data pdata = {
1249                         .activate_cs = activate_cs,
1250                         .deactivate_cs = deactivate_cs,
1251                 };
1252
1253                 memset(res, 0, sizeof(res));
1254
1255                 pdata.sysclk = *sysclk;
1256
1257                 prop = of_get_property(np, "reg", NULL);
1258                 if (!prop)
1259                         goto err;
1260                 pdata.bus_num = *(u32 *)prop;
1261
1262                 prop = of_get_property(np, "mode", NULL);
1263                 if (prop && !strcmp(prop, "cpu-qe"))
1264                         pdata.qe_mode = 1;
1265
1266                 for (j = 0; j < num_board_infos; j++) {
1267                         if (board_infos[j].bus_num == pdata.bus_num)
1268                                 pdata.max_chipselect++;
1269                 }
1270
1271                 if (!pdata.max_chipselect)
1272                         goto err;
1273
1274                 ret = of_address_to_resource(np, 0, &res[0]);
1275                 if (ret)
1276                         goto err;
1277
1278                 ret = of_irq_to_resource(np, 0, &res[1]);
1279                 if (ret == NO_IRQ)
1280                         goto err;
1281
1282                 pdev = platform_device_alloc("mpc83xx_spi", i);
1283                 if (!pdev)
1284                         goto err;
1285
1286                 ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
1287                 if (ret)
1288                         goto unreg;
1289
1290                 ret = platform_device_add_resources(pdev, res,
1291                                                     ARRAY_SIZE(res));
1292                 if (ret)
1293                         goto unreg;
1294
1295                 ret = platform_device_register(pdev);
1296                 if (ret)
1297                         goto unreg;
1298
1299                 continue;
1300 unreg:
1301                 platform_device_del(pdev);
1302 err:
1303                 continue;
1304         }
1305
1306         return spi_register_board_info(board_infos, num_board_infos);
1307 }
1308
1309 #if defined(CONFIG_PPC_85xx) || defined(CONFIG_PPC_86xx)
1310 static __be32 __iomem *rstcr;
1311
1312 static int __init setup_rstcr(void)
1313 {
1314         struct device_node *np;
1315         np = of_find_node_by_name(NULL, "global-utilities");
1316         if ((np && of_get_property(np, "fsl,has-rstcr", NULL))) {
1317                 const u32 *prop = of_get_property(np, "reg", NULL);
1318                 if (prop) {
1319                         /* map reset control register
1320                          * 0xE00B0 is offset of reset control register
1321                          */
1322                         rstcr = ioremap(get_immrbase() + *prop + 0xB0, 0xff);
1323                         if (!rstcr)
1324                                 printk (KERN_EMERG "Error: reset control "
1325                                                 "register not mapped!\n");
1326                 }
1327         } else
1328                 printk (KERN_INFO "rstcr compatible register does not exist!\n");
1329         if (np)
1330                 of_node_put(np);
1331         return 0;
1332 }
1333
1334 arch_initcall(setup_rstcr);
1335
1336 void fsl_rstcr_restart(char *cmd)
1337 {
1338         local_irq_disable();
1339         if (rstcr)
1340                 /* set reset control register */
1341                 out_be32(rstcr, 0x2);   /* HRESET_REQ */
1342
1343         while (1) ;
1344 }
1345 #endif