git.oblomov.eu 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/fsl_devices.h>
  26 #include <linux/fs_enet_pd.h>
  27 #include <linux/fs_uart_pd.h>
  28
  29 #include <asm/system.h>
  30 #include <asm/atomic.h>
  31 #include <asm/io.h>
  32 #include <asm/irq.h>
  33 #include <asm/time.h>
  34 #include <asm/prom.h>
  35 #include <sysdev/fsl_soc.h>
  36 #include <mm/mmu_decl.h>
  37 #include <asm/cpm2.h>
  38
  39 extern void init_fcc_ioports(struct fs_platform_info*);
  40 static phys_addr_t immrbase = -1;
  41
  42 phys_addr_t get_immrbase(void)
  43 {
  44         struct device_node *soc;
  45
  46         if (immrbase != -1)
  47                 return immrbase;
  48
  49         soc = of_find_node_by_type(NULL, "soc");
  50         if (soc) {
  51                 unsigned int size;
  52                 const void *prop = get_property(soc, "reg", &size);
  53
  54                 if (prop)
  55                         immrbase = of_translate_address(soc, prop);
  56                 of_node_put(soc);
  57         };
  58
  59         return immrbase;
  60 }
  61
  62 EXPORT_SYMBOL(get_immrbase);
  63
  64 #ifdef CONFIG_CPM2
  65
  66 static u32 brgfreq = -1;
  67
  68 u32 get_brgfreq(void)
  69 {
  70         struct device_node *node;
  71
  72         if (brgfreq != -1)
  73                 return brgfreq;
  74
  75         node = of_find_node_by_type(NULL, "cpm");
  76         if (node) {
  77                 unsigned int size;
  78                 const unsigned int *prop = get_property(node, "brg-frequency",
  79                                         &size);
  80
  81                 if (prop)
  82                         brgfreq = *prop;
  83                 of_node_put(node);
  84         };
  85
  86         return brgfreq;
  87 }
  88
  89 EXPORT_SYMBOL(get_brgfreq);
  90
  91 static u32 fs_baudrate = -1;
  92
  93 u32 get_baudrate(void)
  94 {
  95         struct device_node *node;
  96
  97         if (fs_baudrate != -1)
  98                 return fs_baudrate;
  99
 100         node = of_find_node_by_type(NULL, "serial");
 101         if (node) {
 102                 unsigned int size;
 103                 const unsigned int *prop = get_property(node, "current-speed",
 104                                 &size);
 105
 106                 if (prop)
 107                         fs_baudrate = *prop;
 108                 of_node_put(node);
 109         };
 110
 111         return fs_baudrate;
 112 }
 113
 114 EXPORT_SYMBOL(get_baudrate);
 115 #endif /* CONFIG_CPM2 */
 116
 117 static int __init gfar_mdio_of_init(void)
 118 {
 119         struct device_node *np;
 120         unsigned int i;
 121         struct platform_device *mdio_dev;
 122         struct resource res;
 123         int ret;
 124
 125         for (np = NULL, i = 0;
 126              (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
 127              i++) {
 128                 int k;
 129                 struct device_node *child = NULL;
 130                 struct gianfar_mdio_data mdio_data;
 131
 132                 memset(&res, 0, sizeof(res));
 133                 memset(&mdio_data, 0, sizeof(mdio_data));
 134
 135                 ret = of_address_to_resource(np, 0, &res);
 136                 if (ret)
 137                         goto err;
 138
 139                 mdio_dev =
 140                     platform_device_register_simple("fsl-gianfar_mdio",
 141                                                     res.start, &res, 1);
 142                 if (IS_ERR(mdio_dev)) {
 143                         ret = PTR_ERR(mdio_dev);
 144                         goto err;
 145                 }
 146
 147                 for (k = 0; k < 32; k++)
 148                         mdio_data.irq[k] = -1;
 149
 150                 while ((child = of_get_next_child(np, child)) != NULL) {
 151                         int irq = irq_of_parse_and_map(child, 0);
 152                         if (irq != NO_IRQ) {
 153                                 const u32 *id = get_property(child, "reg", NULL);
 154                                 mdio_data.irq[*id] = irq;
 155                         }
 156                 }
 157
 158                 ret =
 159                     platform_device_add_data(mdio_dev, &mdio_data,
 160                                              sizeof(struct gianfar_mdio_data));
 161                 if (ret)
 162                         goto unreg;
 163         }
 164
 165         return 0;
 166
 167 unreg:
 168         platform_device_unregister(mdio_dev);
 169 err:
 170         return ret;
 171 }
 172
 173 arch_initcall(gfar_mdio_of_init);
 174
 175 static const char *gfar_tx_intr = "tx";
 176 static const char *gfar_rx_intr = "rx";
 177 static const char *gfar_err_intr = "error";
 178
 179 static int __init gfar_of_init(void)
 180 {
 181         struct device_node *np;
 182         unsigned int i;
 183         struct platform_device *gfar_dev;
 184         struct resource res;
 185         int ret;
 186
 187         for (np = NULL, i = 0;
 188              (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
 189              i++) {
 190                 struct resource r[4];
 191                 struct device_node *phy, *mdio;
 192                 struct gianfar_platform_data gfar_data;
 193                 const unsigned int *id;
 194                 const char *model;
 195                 const void *mac_addr;
 196                 const phandle *ph;
 197                 int n_res = 2;
 198
 199                 memset(r, 0, sizeof(r));
 200                 memset(&gfar_data, 0, sizeof(gfar_data));
 201
 202                 ret = of_address_to_resource(np, 0, &r[0]);
 203                 if (ret)
 204                         goto err;
 205
 206                 r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 207                 r[1].flags = IORESOURCE_IRQ;
 208
 209                 model = get_property(np, "model", NULL);
 210
 211                 /* If we aren't the FEC we have multiple interrupts */
 212                 if (model && strcasecmp(model, "FEC")) {
 213                         r[1].name = gfar_tx_intr;
 214
 215                         r[2].name = gfar_rx_intr;
 216                         r[2].start = r[2].end = irq_of_parse_and_map(np, 1);
 217                         r[2].flags = IORESOURCE_IRQ;
 218
 219                         r[3].name = gfar_err_intr;
 220                         r[3].start = r[3].end = irq_of_parse_and_map(np, 2);
 221                         r[3].flags = IORESOURCE_IRQ;
 222
 223                         n_res += 2;
 224                 }
 225
 226                 gfar_dev =
 227                     platform_device_register_simple("fsl-gianfar", i, &r[0],
 228                                                     n_res);
 229
 230                 if (IS_ERR(gfar_dev)) {
 231                         ret = PTR_ERR(gfar_dev);
 232                         goto err;
 233                 }
 234
 235                 mac_addr = get_property(np, "local-mac-address", NULL);
 236                 if (mac_addr == NULL)
 237                         mac_addr = get_property(np, "mac-address", NULL);
 238                 if (mac_addr == NULL) {
 239                         /* Obsolete */
 240                         mac_addr = get_property(np, "address", NULL);
 241                 }
 242
 243                 if (mac_addr)
 244                         memcpy(gfar_data.mac_addr, mac_addr, 6);
 245
 246                 if (model && !strcasecmp(model, "TSEC"))
 247                         gfar_data.device_flags =
 248                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 249                             FSL_GIANFAR_DEV_HAS_COALESCE |
 250                             FSL_GIANFAR_DEV_HAS_RMON |
 251                             FSL_GIANFAR_DEV_HAS_MULTI_INTR;
 252                 if (model && !strcasecmp(model, "eTSEC"))
 253                         gfar_data.device_flags =
 254                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 255                             FSL_GIANFAR_DEV_HAS_COALESCE |
 256                             FSL_GIANFAR_DEV_HAS_RMON |
 257                             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
 258                             FSL_GIANFAR_DEV_HAS_CSUM |
 259                             FSL_GIANFAR_DEV_HAS_VLAN |
 260                             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 261
 262                 ph = get_property(np, "phy-handle", NULL);
 263                 phy = of_find_node_by_phandle(*ph);
 264
 265                 if (phy == NULL) {
 266                         ret = -ENODEV;
 267                         goto unreg;
 268                 }
 269
 270                 mdio = of_get_parent(phy);
 271
 272                 id = get_property(phy, "reg", NULL);
 273                 ret = of_address_to_resource(mdio, 0, &res);
 274                 if (ret) {
 275                         of_node_put(phy);
 276                         of_node_put(mdio);
 277                         goto unreg;
 278                 }
 279
 280                 gfar_data.phy_id = *id;
 281                 gfar_data.bus_id = res.start;
 282
 283                 of_node_put(phy);
 284                 of_node_put(mdio);
 285
 286                 ret =
 287                     platform_device_add_data(gfar_dev, &gfar_data,
 288                                              sizeof(struct
 289                                                     gianfar_platform_data));
 290                 if (ret)
 291                         goto unreg;
 292         }
 293
 294         return 0;
 295
 296 unreg:
 297         platform_device_unregister(gfar_dev);
 298 err:
 299         return ret;
 300 }
 301
 302 arch_initcall(gfar_of_init);
 303
 304 static int __init fsl_i2c_of_init(void)
 305 {
 306         struct device_node *np;
 307         unsigned int i;
 308         struct platform_device *i2c_dev;
 309         int ret;
 310
 311         for (np = NULL, i = 0;
 312              (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
 313              i++) {
 314                 struct resource r[2];
 315                 struct fsl_i2c_platform_data i2c_data;
 316                 const unsigned char *flags = NULL;
 317
 318                 memset(&r, 0, sizeof(r));
 319                 memset(&i2c_data, 0, sizeof(i2c_data));
 320
 321                 ret = of_address_to_resource(np, 0, &r[0]);
 322                 if (ret)
 323                         goto err;
 324
 325                 r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 326                 r[1].flags = IORESOURCE_IRQ;
 327
 328                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 329                 if (IS_ERR(i2c_dev)) {
 330                         ret = PTR_ERR(i2c_dev);
 331                         goto err;
 332                 }
 333
 334                 i2c_data.device_flags = 0;
 335                 flags = get_property(np, "dfsrr", NULL);
 336                 if (flags)
 337                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 338
 339                 flags = get_property(np, "fsl5200-clocking", NULL);
 340                 if (flags)
 341                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 342
 343                 ret =
 344                     platform_device_add_data(i2c_dev, &i2c_data,
 345                                              sizeof(struct
 346                                                     fsl_i2c_platform_data));
 347                 if (ret)
 348                         goto unreg;
 349         }
 350
 351         return 0;
 352
 353 unreg:
 354         platform_device_unregister(i2c_dev);
 355 err:
 356         return ret;
 357 }
 358
 359 arch_initcall(fsl_i2c_of_init);
 360
 361 #ifdef CONFIG_PPC_83xx
 362 static int __init mpc83xx_wdt_init(void)
 363 {
 364         struct resource r;
 365         struct device_node *soc, *np;
 366         struct platform_device *dev;
 367         const unsigned int *freq;
 368         int ret;
 369
 370         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 371
 372         if (!np) {
 373                 ret = -ENODEV;
 374                 goto nodev;
 375         }
 376
 377         soc = of_find_node_by_type(NULL, "soc");
 378
 379         if (!soc) {
 380                 ret = -ENODEV;
 381                 goto nosoc;
 382         }
 383
 384         freq = get_property(soc, "bus-frequency", NULL);
 385         if (!freq) {
 386                 ret = -ENODEV;
 387                 goto err;
 388         }
 389
 390         memset(&r, 0, sizeof(r));
 391
 392         ret = of_address_to_resource(np, 0, &r);
 393         if (ret)
 394                 goto err;
 395
 396         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 397         if (IS_ERR(dev)) {
 398                 ret = PTR_ERR(dev);
 399                 goto err;
 400         }
 401
 402         ret = platform_device_add_data(dev, freq, sizeof(int));
 403         if (ret)
 404                 goto unreg;
 405
 406         of_node_put(soc);
 407         of_node_put(np);
 408
 409         return 0;
 410
 411 unreg:
 412         platform_device_unregister(dev);
 413 err:
 414         of_node_put(soc);
 415 nosoc:
 416         of_node_put(np);
 417 nodev:
 418         return ret;
 419 }
 420
 421 arch_initcall(mpc83xx_wdt_init);
 422 #endif
 423
 424 static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 425 {
 426         if (!phy_type)
 427                 return FSL_USB2_PHY_NONE;
 428         if (!strcasecmp(phy_type, "ulpi"))
 429                 return FSL_USB2_PHY_ULPI;
 430         if (!strcasecmp(phy_type, "utmi"))
 431                 return FSL_USB2_PHY_UTMI;
 432         if (!strcasecmp(phy_type, "utmi_wide"))
 433                 return FSL_USB2_PHY_UTMI_WIDE;
 434         if (!strcasecmp(phy_type, "serial"))
 435                 return FSL_USB2_PHY_SERIAL;
 436
 437         return FSL_USB2_PHY_NONE;
 438 }
 439
 440 static int __init fsl_usb_of_init(void)
 441 {
 442         struct device_node *np;
 443         unsigned int i;
 444         struct platform_device *usb_dev_mph = NULL, *usb_dev_dr = NULL;
 445         int ret;
 446
 447         for (np = NULL, i = 0;
 448              (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
 449              i++) {
 450                 struct resource r[2];
 451                 struct fsl_usb2_platform_data usb_data;
 452                 const unsigned char *prop = NULL;
 453
 454                 memset(&r, 0, sizeof(r));
 455                 memset(&usb_data, 0, sizeof(usb_data));
 456
 457                 ret = of_address_to_resource(np, 0, &r[0]);
 458                 if (ret)
 459                         goto err;
 460
 461                 r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 462                 r[1].flags = IORESOURCE_IRQ;
 463
 464                 usb_dev_mph =
 465                     platform_device_register_simple("fsl-ehci", i, r, 2);
 466                 if (IS_ERR(usb_dev_mph)) {
 467                         ret = PTR_ERR(usb_dev_mph);
 468                         goto err;
 469                 }
 470
 471                 usb_dev_mph->dev.coherent_dma_mask = 0xffffffffUL;
 472                 usb_dev_mph->dev.dma_mask = &usb_dev_mph->dev.coherent_dma_mask;
 473
 474                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 475
 476                 prop = get_property(np, "port0", NULL);
 477                 if (prop)
 478                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 479
 480                 prop = get_property(np, "port1", NULL);
 481                 if (prop)
 482                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 483
 484                 prop = get_property(np, "phy_type", NULL);
 485                 usb_data.phy_mode = determine_usb_phy(prop);
 486
 487                 ret =
 488                     platform_device_add_data(usb_dev_mph, &usb_data,
 489                                              sizeof(struct
 490                                                     fsl_usb2_platform_data));
 491                 if (ret)
 492                         goto unreg_mph;
 493         }
 494
 495         for (np = NULL;
 496              (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
 497              i++) {
 498                 struct resource r[2];
 499                 struct fsl_usb2_platform_data usb_data;
 500                 const unsigned char *prop = NULL;
 501
 502                 memset(&r, 0, sizeof(r));
 503                 memset(&usb_data, 0, sizeof(usb_data));
 504
 505                 ret = of_address_to_resource(np, 0, &r[0]);
 506                 if (ret)
 507                         goto unreg_mph;
 508
 509                 r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
 510                 r[1].flags = IORESOURCE_IRQ;
 511
 512                 usb_dev_dr =
 513                     platform_device_register_simple("fsl-ehci", i, r, 2);
 514                 if (IS_ERR(usb_dev_dr)) {
 515                         ret = PTR_ERR(usb_dev_dr);
 516                         goto err;
 517                 }
 518
 519                 usb_dev_dr->dev.coherent_dma_mask = 0xffffffffUL;
 520                 usb_dev_dr->dev.dma_mask = &usb_dev_dr->dev.coherent_dma_mask;
 521
 522                 usb_data.operating_mode = FSL_USB2_DR_HOST;
 523
 524                 prop = get_property(np, "phy_type", NULL);
 525                 usb_data.phy_mode = determine_usb_phy(prop);
 526
 527                 ret =
 528                     platform_device_add_data(usb_dev_dr, &usb_data,
 529                                              sizeof(struct
 530                                                     fsl_usb2_platform_data));
 531                 if (ret)
 532                         goto unreg_dr;
 533         }
 534         return 0;
 535
 536 unreg_dr:
 537         if (usb_dev_dr)
 538                 platform_device_unregister(usb_dev_dr);
 539 unreg_mph:
 540         if (usb_dev_mph)
 541                 platform_device_unregister(usb_dev_mph);
 542 err:
 543         return ret;
 544 }
 545
 546 arch_initcall(fsl_usb_of_init);
 547
 548 #ifdef CONFIG_CPM2
 549
 550 static const char fcc_regs[] = "fcc_regs";
 551 static const char fcc_regs_c[] = "fcc_regs_c";
 552 static const char fcc_pram[] = "fcc_pram";
 553 static char bus_id[9][BUS_ID_SIZE];
 554
 555 static int __init fs_enet_of_init(void)
 556 {
 557         struct device_node *np;
 558         unsigned int i;
 559         struct platform_device *fs_enet_dev;
 560         struct resource res;
 561         int ret;
 562
 563         for (np = NULL, i = 0;
 564              (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
 565              i++) {
 566                 struct resource r[4];
 567                 struct device_node *phy, *mdio;
 568                 struct fs_platform_info fs_enet_data;
 569                 const unsigned int *id, *phy_addr;
 570                 const void *mac_addr;
 571                 const phandle *ph;
 572                 const char *model;
 573
 574                 memset(r, 0, sizeof(r));
 575                 memset(&fs_enet_data, 0, sizeof(fs_enet_data));
 576
 577                 ret = of_address_to_resource(np, 0, &r[0]);
 578                 if (ret)
 579                         goto err;
 580                 r[0].name = fcc_regs;
 581
 582                 ret = of_address_to_resource(np, 1, &r[1]);
 583                 if (ret)
 584                         goto err;
 585                 r[1].name = fcc_pram;
 586
 587                 ret = of_address_to_resource(np, 2, &r[2]);
 588                 if (ret)
 589                         goto err;
 590                 r[2].name = fcc_regs_c;
 591
 592                 r[3].start = r[3].end = irq_of_parse_and_map(np, 0);
 593                 r[3].flags = IORESOURCE_IRQ;
 594
 595                 fs_enet_dev =
 596                     platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);
 597
 598                 if (IS_ERR(fs_enet_dev)) {
 599                         ret = PTR_ERR(fs_enet_dev);
 600                         goto err;
 601                 }
 602
 603                 model = get_property(np, "model", NULL);
 604                 if (model == NULL) {
 605                         ret = -ENODEV;
 606                         goto unreg;
 607                 }
 608
 609                 mac_addr = get_property(np, "mac-address", NULL);
 610                 memcpy(fs_enet_data.macaddr, mac_addr, 6);
 611
 612                 ph = get_property(np, "phy-handle", NULL);
 613                 phy = of_find_node_by_phandle(*ph);
 614
 615                 if (phy == NULL) {
 616                         ret = -ENODEV;
 617                         goto unreg;
 618                 }
 619
 620                 phy_addr = get_property(phy, "reg", NULL);
 621                 fs_enet_data.phy_addr = *phy_addr;
 622
 623                 id = get_property(np, "device-id", NULL);
 624                 fs_enet_data.fs_no = *id;
 625                 strcpy(fs_enet_data.fs_type, model);
 626
 627                 mdio = of_get_parent(phy);
 628                 ret = of_address_to_resource(mdio, 0, &res);
 629                 if (ret) {
 630                         of_node_put(phy);
 631                         of_node_put(mdio);
 632                         goto unreg;
 633                 }
 634
 635                 fs_enet_data.clk_rx = *((u32 *) get_property(np, "rx-clock", NULL));
 636                 fs_enet_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL));
 637
 638                 if (strstr(model, "FCC")) {
 639                         int fcc_index = *id - 1;
 640
 641                         fs_enet_data.dpram_offset = (u32)cpm_dpram_addr(0);
 642                         fs_enet_data.rx_ring = 32;
 643                         fs_enet_data.tx_ring = 32;
 644                         fs_enet_data.rx_copybreak = 240;
 645                         fs_enet_data.use_napi = 0;
 646                         fs_enet_data.napi_weight = 17;
 647                         fs_enet_data.mem_offset = FCC_MEM_OFFSET(fcc_index);
 648                         fs_enet_data.cp_page = CPM_CR_FCC_PAGE(fcc_index);
 649                         fs_enet_data.cp_block = CPM_CR_FCC_SBLOCK(fcc_index);
 650
 651                         snprintf((char*)&bus_id[(*id)], BUS_ID_SIZE, "%x:%02x",
 652                                                         (u32)res.start, fs_enet_data.phy_addr);
 653                         fs_enet_data.bus_id = (char*)&bus_id[(*id)];
 654                         fs_enet_data.init_ioports = init_fcc_ioports;
 655                 }
 656
 657                 of_node_put(phy);
 658                 of_node_put(mdio);
 659
 660                 ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
 661                                              sizeof(struct
 662                                                     fs_platform_info));
 663                 if (ret)
 664                         goto unreg;
 665         }
 666         return 0;
 667
 668 unreg:
 669         platform_device_unregister(fs_enet_dev);
 670 err:
 671         return ret;
 672 }
 673
 674 arch_initcall(fs_enet_of_init);
 675
 676 static const char scc_regs[] = "regs";
 677 static const char scc_pram[] = "pram";
 678
 679 static int __init cpm_uart_of_init(void)
 680 {
 681         struct device_node *np;
 682         unsigned int i;
 683         struct platform_device *cpm_uart_dev;
 684         int ret;
 685
 686         for (np = NULL, i = 0;
 687              (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
 688              i++) {
 689                 struct resource r[3];
 690                 struct fs_uart_platform_info cpm_uart_data;
 691                 const int *id;
 692                 const char *model;
 693
 694                 memset(r, 0, sizeof(r));
 695                 memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
 696
 697                 ret = of_address_to_resource(np, 0, &r[0]);
 698                 if (ret)
 699                         goto err;
 700
 701                 r[0].name = scc_regs;
 702
 703                 ret = of_address_to_resource(np, 1, &r[1]);
 704                 if (ret)
 705                         goto err;
 706                 r[1].name = scc_pram;
 707
 708                 r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
 709                 r[2].flags = IORESOURCE_IRQ;
 710
 711                 cpm_uart_dev =
 712                     platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);
 713
 714                 if (IS_ERR(cpm_uart_dev)) {
 715                         ret = PTR_ERR(cpm_uart_dev);
 716                         goto err;
 717                 }
 718
 719                 id = get_property(np, "device-id", NULL);
 720                 cpm_uart_data.fs_no = *id;
 721
 722                 model = (char*)get_property(np, "model", NULL);
 723                 strcpy(cpm_uart_data.fs_type, model);
 724
 725                 cpm_uart_data.uart_clk = ppc_proc_freq;
 726
 727                 cpm_uart_data.tx_num_fifo = 4;
 728                 cpm_uart_data.tx_buf_size = 32;
 729                 cpm_uart_data.rx_num_fifo = 4;
 730                 cpm_uart_data.rx_buf_size = 32;
 731                 cpm_uart_data.clk_rx = *((u32 *) get_property(np, "rx-clock", NULL));
 732                 cpm_uart_data.clk_tx = *((u32 *) get_property(np, "tx-clock", NULL));
 733
 734                 ret =
 735                     platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
 736                                              sizeof(struct
 737                                                     fs_uart_platform_info));
 738                 if (ret)
 739                         goto unreg;
 740         }
 741
 742         return 0;
 743
 744 unreg:
 745         platform_device_unregister(cpm_uart_dev);
 746 err:
 747         return ret;
 748 }
 749
 750 arch_initcall(cpm_uart_of_init);
 751 #endif /* CONFIG_CPM2 */