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  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <linux/config.h>
  13 #include <linux/stddef.h>
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/errno.h>
  17 #include <linux/major.h>
  18 #include <linux/delay.h>
  19 #include <linux/irq.h>
  20 #include <linux/module.h>
  21 #include <linux/device.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/fsl_devices.h>
  24
  25 #include <asm/system.h>
  26 #include <asm/atomic.h>
  27 #include <asm/io.h>
  28 #include <asm/irq.h>
  29 #include <asm/prom.h>
  30 #include <sysdev/fsl_soc.h>
  31 #include <mm/mmu_decl.h>
  32
  33 static phys_addr_t immrbase = -1;
  34
  35 phys_addr_t get_immrbase(void)
  36 {
  37         struct device_node *soc;
  38
  39         if (immrbase != -1)
  40                 return immrbase;
  41
  42         soc = of_find_node_by_type(NULL, "soc");
  43         if (soc) {
  44                 unsigned int size;
  45                 void *prop = get_property(soc, "reg", &size);
  46                 immrbase = of_translate_address(soc, prop);
  47                 of_node_put(soc);
  48         };
  49
  50         return immrbase;
  51 }
  52
  53 EXPORT_SYMBOL(get_immrbase);
  54
  55 static int __init gfar_mdio_of_init(void)
  56 {
  57         struct device_node *np;
  58         unsigned int i;
  59         struct platform_device *mdio_dev;
  60         struct resource res;
  61         int ret;
  62
  63         for (np = NULL, i = 0;
  64              (np = of_find_compatible_node(np, "mdio", "gianfar")) != NULL;
  65              i++) {
  66                 int k;
  67                 struct device_node *child = NULL;
  68                 struct gianfar_mdio_data mdio_data;
  69
  70                 memset(&res, 0, sizeof(res));
  71                 memset(&mdio_data, 0, sizeof(mdio_data));
  72
  73                 ret = of_address_to_resource(np, 0, &res);
  74                 if (ret)
  75                         goto err;
  76
  77                 mdio_dev =
  78                     platform_device_register_simple("fsl-gianfar_mdio",
  79                                                     res.start, &res, 1);
  80                 if (IS_ERR(mdio_dev)) {
  81                         ret = PTR_ERR(mdio_dev);
  82                         goto err;
  83                 }
  84
  85                 for (k = 0; k < 32; k++)
  86                         mdio_data.irq[k] = -1;
  87
  88                 while ((child = of_get_next_child(np, child)) != NULL) {
  89                         if (child->n_intrs) {
  90                                 u32 *id =
  91                                     (u32 *) get_property(child, "reg", NULL);
  92                                 mdio_data.irq[*id] = child->intrs[0].line;
  93                         }
  94                 }
  95
  96                 ret =
  97                     platform_device_add_data(mdio_dev, &mdio_data,
  98                                              sizeof(struct gianfar_mdio_data));
  99                 if (ret)
 100                         goto unreg;
 101         }
 102
 103         return 0;
 104
 105 unreg:
 106         platform_device_unregister(mdio_dev);
 107 err:
 108         return ret;
 109 }
 110
 111 arch_initcall(gfar_mdio_of_init);
 112
 113 static const char *gfar_tx_intr = "tx";
 114 static const char *gfar_rx_intr = "rx";
 115 static const char *gfar_err_intr = "error";
 116
 117 static int __init gfar_of_init(void)
 118 {
 119         struct device_node *np;
 120         unsigned int i;
 121         struct platform_device *gfar_dev;
 122         struct resource res;
 123         int ret;
 124
 125         for (np = NULL, i = 0;
 126              (np = of_find_compatible_node(np, "network", "gianfar")) != NULL;
 127              i++) {
 128                 struct resource r[4];
 129                 struct device_node *phy, *mdio;
 130                 struct gianfar_platform_data gfar_data;
 131                 unsigned int *id;
 132                 char *model;
 133                 void *mac_addr;
 134                 phandle *ph;
 135
 136                 memset(r, 0, sizeof(r));
 137                 memset(&gfar_data, 0, sizeof(gfar_data));
 138
 139                 ret = of_address_to_resource(np, 0, &r[0]);
 140                 if (ret)
 141                         goto err;
 142
 143                 r[1].start = np->intrs[0].line;
 144                 r[1].end = np->intrs[0].line;
 145                 r[1].flags = IORESOURCE_IRQ;
 146
 147                 model = get_property(np, "model", NULL);
 148
 149                 /* If we aren't the FEC we have multiple interrupts */
 150                 if (model && strcasecmp(model, "FEC")) {
 151                         r[1].name = gfar_tx_intr;
 152
 153                         r[2].name = gfar_rx_intr;
 154                         r[2].start = np->intrs[1].line;
 155                         r[2].end = np->intrs[1].line;
 156                         r[2].flags = IORESOURCE_IRQ;
 157
 158                         r[3].name = gfar_err_intr;
 159                         r[3].start = np->intrs[2].line;
 160                         r[3].end = np->intrs[2].line;
 161                         r[3].flags = IORESOURCE_IRQ;
 162                 }
 163
 164                 gfar_dev =
 165                     platform_device_register_simple("fsl-gianfar", i, &r[0],
 166                                                     np->n_intrs + 1);
 167
 168                 if (IS_ERR(gfar_dev)) {
 169                         ret = PTR_ERR(gfar_dev);
 170                         goto err;
 171                 }
 172
 173                 mac_addr = get_property(np, "address", NULL);
 174                 memcpy(gfar_data.mac_addr, mac_addr, 6);
 175
 176                 if (model && !strcasecmp(model, "TSEC"))
 177                         gfar_data.device_flags =
 178                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 179                             FSL_GIANFAR_DEV_HAS_COALESCE |
 180                             FSL_GIANFAR_DEV_HAS_RMON |
 181                             FSL_GIANFAR_DEV_HAS_MULTI_INTR;
 182                 if (model && !strcasecmp(model, "eTSEC"))
 183                         gfar_data.device_flags =
 184                             FSL_GIANFAR_DEV_HAS_GIGABIT |
 185                             FSL_GIANFAR_DEV_HAS_COALESCE |
 186                             FSL_GIANFAR_DEV_HAS_RMON |
 187                             FSL_GIANFAR_DEV_HAS_MULTI_INTR |
 188                             FSL_GIANFAR_DEV_HAS_CSUM |
 189                             FSL_GIANFAR_DEV_HAS_VLAN |
 190                             FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 191
 192                 ph = (phandle *) get_property(np, "phy-handle", NULL);
 193                 phy = of_find_node_by_phandle(*ph);
 194
 195                 if (phy == NULL) {
 196                         ret = -ENODEV;
 197                         goto unreg;
 198                 }
 199
 200                 mdio = of_get_parent(phy);
 201
 202                 id = (u32 *) get_property(phy, "reg", NULL);
 203                 ret = of_address_to_resource(mdio, 0, &res);
 204                 if (ret) {
 205                         of_node_put(phy);
 206                         of_node_put(mdio);
 207                         goto unreg;
 208                 }
 209
 210                 gfar_data.phy_id = *id;
 211                 gfar_data.bus_id = res.start;
 212
 213                 of_node_put(phy);
 214                 of_node_put(mdio);
 215
 216                 ret =
 217                     platform_device_add_data(gfar_dev, &gfar_data,
 218                                              sizeof(struct
 219                                                     gianfar_platform_data));
 220                 if (ret)
 221                         goto unreg;
 222         }
 223
 224         return 0;
 225
 226 unreg:
 227         platform_device_unregister(gfar_dev);
 228 err:
 229         return ret;
 230 }
 231
 232 arch_initcall(gfar_of_init);
 233
 234 static int __init fsl_i2c_of_init(void)
 235 {
 236         struct device_node *np;
 237         unsigned int i;
 238         struct platform_device *i2c_dev;
 239         int ret;
 240
 241         for (np = NULL, i = 0;
 242              (np = of_find_compatible_node(np, "i2c", "fsl-i2c")) != NULL;
 243              i++) {
 244                 struct resource r[2];
 245                 struct fsl_i2c_platform_data i2c_data;
 246                 unsigned char *flags = NULL;
 247
 248                 memset(&r, 0, sizeof(r));
 249                 memset(&i2c_data, 0, sizeof(i2c_data));
 250
 251                 ret = of_address_to_resource(np, 0, &r[0]);
 252                 if (ret)
 253                         goto err;
 254
 255                 r[1].start = np->intrs[0].line;
 256                 r[1].end = np->intrs[0].line;
 257                 r[1].flags = IORESOURCE_IRQ;
 258
 259                 i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 260                 if (IS_ERR(i2c_dev)) {
 261                         ret = PTR_ERR(i2c_dev);
 262                         goto err;
 263                 }
 264
 265                 i2c_data.device_flags = 0;
 266                 flags = get_property(np, "dfsrr", NULL);
 267                 if (flags)
 268                         i2c_data.device_flags |= FSL_I2C_DEV_SEPARATE_DFSRR;
 269
 270                 flags = get_property(np, "fsl5200-clocking", NULL);
 271                 if (flags)
 272                         i2c_data.device_flags |= FSL_I2C_DEV_CLOCK_5200;
 273
 274                 ret =
 275                     platform_device_add_data(i2c_dev, &i2c_data,
 276                                              sizeof(struct
 277                                                     fsl_i2c_platform_data));
 278                 if (ret)
 279                         goto unreg;
 280         }
 281
 282         return 0;
 283
 284 unreg:
 285         platform_device_unregister(i2c_dev);
 286 err:
 287         return ret;
 288 }
 289
 290 arch_initcall(fsl_i2c_of_init);
 291
 292 #ifdef CONFIG_PPC_83xx
 293 static int __init mpc83xx_wdt_init(void)
 294 {
 295         struct resource r;
 296         struct device_node *soc, *np;
 297         struct platform_device *dev;
 298         unsigned int *freq;
 299         int ret;
 300
 301         np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
 302
 303         if (!np) {
 304                 ret = -ENODEV;
 305                 goto nodev;
 306         }
 307
 308         soc = of_find_node_by_type(NULL, "soc");
 309
 310         if (!soc) {
 311                 ret = -ENODEV;
 312                 goto nosoc;
 313         }
 314
 315         freq = (unsigned int *)get_property(soc, "bus-frequency", NULL);
 316         if (!freq) {
 317                 ret = -ENODEV;
 318                 goto err;
 319         }
 320
 321         memset(&r, 0, sizeof(r));
 322
 323         ret = of_address_to_resource(np, 0, &r);
 324         if (ret)
 325                 goto err;
 326
 327         dev = platform_device_register_simple("mpc83xx_wdt", 0, &r, 1);
 328         if (IS_ERR(dev)) {
 329                 ret = PTR_ERR(dev);
 330                 goto err;
 331         }
 332
 333         ret = platform_device_add_data(dev, freq, sizeof(int));
 334         if (ret)
 335                 goto unreg;
 336
 337         of_node_put(soc);
 338         of_node_put(np);
 339
 340         return 0;
 341
 342 unreg:
 343         platform_device_unregister(dev);
 344 err:
 345         of_node_put(soc);
 346 nosoc:
 347         of_node_put(np);
 348 nodev:
 349         return ret;
 350 }
 351
 352 arch_initcall(mpc83xx_wdt_init);
 353 #endif
 354
 355 static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type)
 356 {
 357         if (!phy_type)
 358                 return FSL_USB2_PHY_NONE;
 359         if (!strcasecmp(phy_type, "ulpi"))
 360                 return FSL_USB2_PHY_ULPI;
 361         if (!strcasecmp(phy_type, "utmi"))
 362                 return FSL_USB2_PHY_UTMI;
 363         if (!strcasecmp(phy_type, "utmi_wide"))
 364                 return FSL_USB2_PHY_UTMI_WIDE;
 365         if (!strcasecmp(phy_type, "serial"))
 366                 return FSL_USB2_PHY_SERIAL;
 367
 368         return FSL_USB2_PHY_NONE;
 369 }
 370
 371 static int __init fsl_usb_of_init(void)
 372 {
 373         struct device_node *np;
 374         unsigned int i;
 375         struct platform_device *usb_dev;
 376         int ret;
 377
 378         for (np = NULL, i = 0;
 379              (np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL;
 380              i++) {
 381                 struct resource r[2];
 382                 struct fsl_usb2_platform_data usb_data;
 383                 unsigned char *prop = NULL;
 384
 385                 memset(&r, 0, sizeof(r));
 386                 memset(&usb_data, 0, sizeof(usb_data));
 387
 388                 ret = of_address_to_resource(np, 0, &r[0]);
 389                 if (ret)
 390                         goto err;
 391
 392                 r[1].start = np->intrs[0].line;
 393                 r[1].end = np->intrs[0].line;
 394                 r[1].flags = IORESOURCE_IRQ;
 395
 396                 usb_dev =
 397                     platform_device_register_simple("fsl-usb2-mph", i, r, 2);
 398                 if (IS_ERR(usb_dev)) {
 399                         ret = PTR_ERR(usb_dev);
 400                         goto err;
 401                 }
 402
 403                 usb_dev->dev.coherent_dma_mask = 0xffffffffUL;
 404                 usb_dev->dev.dma_mask = &usb_dev->dev.coherent_dma_mask;
 405
 406                 usb_data.operating_mode = FSL_USB2_MPH_HOST;
 407
 408                 prop = get_property(np, "port0", NULL);
 409                 if (prop)
 410                         usb_data.port_enables |= FSL_USB2_PORT0_ENABLED;
 411
 412                 prop = get_property(np, "port1", NULL);
 413                 if (prop)
 414                         usb_data.port_enables |= FSL_USB2_PORT1_ENABLED;
 415
 416                 prop = get_property(np, "phy_type", NULL);
 417                 usb_data.phy_mode = determine_usb_phy(prop);
 418
 419                 ret =
 420                     platform_device_add_data(usb_dev, &usb_data,
 421                                              sizeof(struct
 422                                                     fsl_usb2_platform_data));
 423                 if (ret)
 424                         goto unreg;
 425         }
 426
 427         return 0;
 428
 429 unreg:
 430         platform_device_unregister(usb_dev);
 431 err:
 432         return ret;
 433 }
 434
 435 arch_initcall(fsl_usb_of_init);
 436
 437 static int __init fsl_usb_dr_of_init(void)
 438 {
 439         struct device_node *np;
 440         unsigned int i;
 441         struct platform_device *usb_dev;
 442         int ret;
 443
 444         for (np = NULL, i = 0;
 445              (np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL;
 446              i++) {
 447                 struct resource r[2];
 448                 struct fsl_usb2_platform_data usb_data;
 449                 unsigned char *prop = NULL;
 450
 451                 memset(&r, 0, sizeof(r));
 452                 memset(&usb_data, 0, sizeof(usb_data));
 453
 454                 ret = of_address_to_resource(np, 0, &r[0]);
 455                 if (ret)
 456                         goto err;
 457
 458                 r[1].start = np->intrs[0].line;
 459                 r[1].end = np->intrs[0].line;
 460                 r[1].flags = IORESOURCE_IRQ;
 461
 462                 usb_dev =
 463                     platform_device_register_simple("fsl-usb2-dr", i, r, 2);
 464                 if (IS_ERR(usb_dev)) {
 465                         ret = PTR_ERR(usb_dev);
 466                         goto err;
 467                 }
 468
 469                 usb_dev->dev.coherent_dma_mask = 0xffffffffUL;
 470                 usb_dev->dev.dma_mask = &usb_dev->dev.coherent_dma_mask;
 471
 472                 usb_data.operating_mode = FSL_USB2_DR_HOST;
 473
 474                 prop = get_property(np, "phy_type", NULL);
 475                 usb_data.phy_mode = determine_usb_phy(prop);
 476
 477                 ret =
 478                     platform_device_add_data(usb_dev, &usb_data,
 479                                              sizeof(struct
 480                                                     fsl_usb2_platform_data));
 481                 if (ret)
 482                         goto unreg;
 483         }
 484
 485         return 0;
 486
 487 unreg:
 488         platform_device_unregister(usb_dev);
 489 err:
 490         return ret;
 491 }
 492
 493 arch_initcall(fsl_usb_dr_of_init);