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