git.oblomov.eu Git - linux-2.6/blob - arch/powerpc/platforms/powermac/feature.c

   1 /*
   2  *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
   3  *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
   4  *
   5  *  This program is free software; you can redistribute it and/or
   6  *  modify it under the terms of the GNU General Public License
   7  *  as published by the Free Software Foundation; either version
   8  *  2 of the License, or (at your option) any later version.
   9  *
  10  *  TODO:
  11  *
  12  *   - Replace mdelay with some schedule loop if possible
  13  *   - Shorten some obfuscated delays on some routines (like modem
  14  *     power)
  15  *   - Refcount some clocks (see darwin)
  16  *   - Split split split...
  17  *
  18  */
  19 #include <linux/types.h>
  20 #include <linux/init.h>
  21 #include <linux/delay.h>
  22 #include <linux/kernel.h>
  23 #include <linux/sched.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/adb.h>
  26 #include <linux/pmu.h>
  27 #include <linux/ioport.h>
  28 #include <linux/pci.h>
  29 #include <asm/sections.h>
  30 #include <asm/errno.h>
  31 #include <asm/ohare.h>
  32 #include <asm/heathrow.h>
  33 #include <asm/keylargo.h>
  34 #include <asm/uninorth.h>
  35 #include <asm/io.h>
  36 #include <asm/prom.h>
  37 #include <asm/machdep.h>
  38 #include <asm/pmac_feature.h>
  39 #include <asm/dbdma.h>
  40 #include <asm/pci-bridge.h>
  41 #include <asm/pmac_low_i2c.h>
  42
  43 #undef DEBUG_FEATURE
  44
  45 #ifdef DEBUG_FEATURE
  46 #define DBG(fmt...) printk(KERN_DEBUG fmt)
  47 #else
  48 #define DBG(fmt...)
  49 #endif
  50
  51 #ifdef CONFIG_6xx
  52 extern int powersave_lowspeed;
  53 #endif
  54
  55 extern int powersave_nap;
  56 extern struct device_node *k2_skiplist[2];
  57
  58 /*
  59  * We use a single global lock to protect accesses. Each driver has
  60  * to take care of its own locking
  61  */
  62 DEFINE_SPINLOCK(feature_lock);
  63
  64 #define LOCK(flags)     spin_lock_irqsave(&feature_lock, flags);
  65 #define UNLOCK(flags)   spin_unlock_irqrestore(&feature_lock, flags);
  66
  67
  68 /*
  69  * Instance of some macio stuffs
  70  */
  71 struct macio_chip macio_chips[MAX_MACIO_CHIPS];
  72
  73 struct macio_chip *macio_find(struct device_node *child, int type)
  74 {
  75         while(child) {
  76                 int     i;
  77
  78                 for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
  79                         if (child == macio_chips[i].of_node &&
  80                             (!type || macio_chips[i].type == type))
  81                                 return &macio_chips[i];
  82                 child = child->parent;
  83         }
  84         return NULL;
  85 }
  86 EXPORT_SYMBOL_GPL(macio_find);
  87
  88 static const char *macio_names[] =
  89 {
  90         "Unknown",
  91         "Grand Central",
  92         "OHare",
  93         "OHareII",
  94         "Heathrow",
  95         "Gatwick",
  96         "Paddington",
  97         "Keylargo",
  98         "Pangea",
  99         "Intrepid",
 100         "K2",
 101         "Shasta",
 102 };
 103
 104
 105 struct device_node *uninorth_node;
 106 u32 __iomem *uninorth_base;
 107
 108 static u32 uninorth_rev;
 109 static int uninorth_maj;
 110 static void __iomem *u3_ht_base;
 111
 112 /*
 113  * For each motherboard family, we have a table of functions pointers
 114  * that handle the various features.
 115  */
 116
 117 typedef long (*feature_call)(struct device_node *node, long param, long value);
 118
 119 struct feature_table_entry {
 120         unsigned int    selector;
 121         feature_call    function;
 122 };
 123
 124 struct pmac_mb_def
 125 {
 126         const char*                     model_string;
 127         const char*                     model_name;
 128         int                             model_id;
 129         struct feature_table_entry*     features;
 130         unsigned long                   board_flags;
 131 };
 132 static struct pmac_mb_def pmac_mb;
 133
 134 /*
 135  * Here are the chip specific feature functions
 136  */
 137
 138 static inline int simple_feature_tweak(struct device_node *node, int type,
 139                                        int reg, u32 mask, int value)
 140 {
 141         struct macio_chip*      macio;
 142         unsigned long           flags;
 143
 144         macio = macio_find(node, type);
 145         if (!macio)
 146                 return -ENODEV;
 147         LOCK(flags);
 148         if (value)
 149                 MACIO_BIS(reg, mask);
 150         else
 151                 MACIO_BIC(reg, mask);
 152         (void)MACIO_IN32(reg);
 153         UNLOCK(flags);
 154
 155         return 0;
 156 }
 157
 158 #ifndef CONFIG_POWER4
 159
 160 static long ohare_htw_scc_enable(struct device_node *node, long param,
 161                                  long value)
 162 {
 163         struct macio_chip*      macio;
 164         unsigned long           chan_mask;
 165         unsigned long           fcr;
 166         unsigned long           flags;
 167         int                     htw, trans;
 168         unsigned long           rmask;
 169
 170         macio = macio_find(node, 0);
 171         if (!macio)
 172                 return -ENODEV;
 173         if (!strcmp(node->name, "ch-a"))
 174                 chan_mask = MACIO_FLAG_SCCA_ON;
 175         else if (!strcmp(node->name, "ch-b"))
 176                 chan_mask = MACIO_FLAG_SCCB_ON;
 177         else
 178                 return -ENODEV;
 179
 180         htw = (macio->type == macio_heathrow || macio->type == macio_paddington
 181                 || macio->type == macio_gatwick);
 182         /* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
 183         trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
 184                  pmac_mb.model_id != PMAC_TYPE_YIKES);
 185         if (value) {
 186 #ifdef CONFIG_ADB_PMU
 187                 if ((param & 0xfff) == PMAC_SCC_IRDA)
 188                         pmu_enable_irled(1);
 189 #endif /* CONFIG_ADB_PMU */
 190                 LOCK(flags);
 191                 fcr = MACIO_IN32(OHARE_FCR);
 192                 /* Check if scc cell need enabling */
 193                 if (!(fcr & OH_SCC_ENABLE)) {
 194                         fcr |= OH_SCC_ENABLE;
 195                         if (htw) {
 196                                 /* Side effect: this will also power up the
 197                                  * modem, but it's too messy to figure out on which
 198                                  * ports this controls the tranceiver and on which
 199                                  * it controls the modem
 200                                  */
 201                                 if (trans)
 202                                         fcr &= ~HRW_SCC_TRANS_EN_N;
 203                                 MACIO_OUT32(OHARE_FCR, fcr);
 204                                 fcr |= (rmask = HRW_RESET_SCC);
 205                                 MACIO_OUT32(OHARE_FCR, fcr);
 206                         } else {
 207                                 fcr |= (rmask = OH_SCC_RESET);
 208                                 MACIO_OUT32(OHARE_FCR, fcr);
 209                         }
 210                         UNLOCK(flags);
 211                         (void)MACIO_IN32(OHARE_FCR);
 212                         mdelay(15);
 213                         LOCK(flags);
 214                         fcr &= ~rmask;
 215                         MACIO_OUT32(OHARE_FCR, fcr);
 216                 }
 217                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 218                         fcr |= OH_SCCA_IO;
 219                 if (chan_mask & MACIO_FLAG_SCCB_ON)
 220                         fcr |= OH_SCCB_IO;
 221                 MACIO_OUT32(OHARE_FCR, fcr);
 222                 macio->flags |= chan_mask;
 223                 UNLOCK(flags);
 224                 if (param & PMAC_SCC_FLAG_XMON)
 225                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
 226         } else {
 227                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
 228                         return -EPERM;
 229                 LOCK(flags);
 230                 fcr = MACIO_IN32(OHARE_FCR);
 231                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 232                         fcr &= ~OH_SCCA_IO;
 233                 if (chan_mask & MACIO_FLAG_SCCB_ON)
 234                         fcr &= ~OH_SCCB_IO;
 235                 MACIO_OUT32(OHARE_FCR, fcr);
 236                 if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
 237                         fcr &= ~OH_SCC_ENABLE;
 238                         if (htw && trans)
 239                                 fcr |= HRW_SCC_TRANS_EN_N;
 240                         MACIO_OUT32(OHARE_FCR, fcr);
 241                 }
 242                 macio->flags &= ~(chan_mask);
 243                 UNLOCK(flags);
 244                 mdelay(10);
 245 #ifdef CONFIG_ADB_PMU
 246                 if ((param & 0xfff) == PMAC_SCC_IRDA)
 247                         pmu_enable_irled(0);
 248 #endif /* CONFIG_ADB_PMU */
 249         }
 250         return 0;
 251 }
 252
 253 static long ohare_floppy_enable(struct device_node *node, long param,
 254                                 long value)
 255 {
 256         return simple_feature_tweak(node, macio_ohare,
 257                 OHARE_FCR, OH_FLOPPY_ENABLE, value);
 258 }
 259
 260 static long ohare_mesh_enable(struct device_node *node, long param, long value)
 261 {
 262         return simple_feature_tweak(node, macio_ohare,
 263                 OHARE_FCR, OH_MESH_ENABLE, value);
 264 }
 265
 266 static long ohare_ide_enable(struct device_node *node, long param, long value)
 267 {
 268         switch(param) {
 269         case 0:
 270                 /* For some reason, setting the bit in set_initial_features()
 271                  * doesn't stick. I'm still investigating... --BenH.
 272                  */
 273                 if (value)
 274                         simple_feature_tweak(node, macio_ohare,
 275                                 OHARE_FCR, OH_IOBUS_ENABLE, 1);
 276                 return simple_feature_tweak(node, macio_ohare,
 277                         OHARE_FCR, OH_IDE0_ENABLE, value);
 278         case 1:
 279                 return simple_feature_tweak(node, macio_ohare,
 280                         OHARE_FCR, OH_BAY_IDE_ENABLE, value);
 281         default:
 282                 return -ENODEV;
 283         }
 284 }
 285
 286 static long ohare_ide_reset(struct device_node *node, long param, long value)
 287 {
 288         switch(param) {
 289         case 0:
 290                 return simple_feature_tweak(node, macio_ohare,
 291                         OHARE_FCR, OH_IDE0_RESET_N, !value);
 292         case 1:
 293                 return simple_feature_tweak(node, macio_ohare,
 294                         OHARE_FCR, OH_IDE1_RESET_N, !value);
 295         default:
 296                 return -ENODEV;
 297         }
 298 }
 299
 300 static long ohare_sleep_state(struct device_node *node, long param, long value)
 301 {
 302         struct macio_chip*      macio = &macio_chips[0];
 303
 304         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
 305                 return -EPERM;
 306         if (value == 1) {
 307                 MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
 308         } else if (value == 0) {
 309                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
 310         }
 311
 312         return 0;
 313 }
 314
 315 static long heathrow_modem_enable(struct device_node *node, long param,
 316                                   long value)
 317 {
 318         struct macio_chip*      macio;
 319         u8                      gpio;
 320         unsigned long           flags;
 321
 322         macio = macio_find(node, macio_unknown);
 323         if (!macio)
 324                 return -ENODEV;
 325         gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
 326         if (!value) {
 327                 LOCK(flags);
 328                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
 329                 UNLOCK(flags);
 330                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 331                 mdelay(250);
 332         }
 333         if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
 334             pmac_mb.model_id != PMAC_TYPE_YIKES) {
 335                 LOCK(flags);
 336                 if (value)
 337                         MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 338                 else
 339                         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 340                 UNLOCK(flags);
 341                 (void)MACIO_IN32(HEATHROW_FCR);
 342                 mdelay(250);
 343         }
 344         if (value) {
 345                 LOCK(flags);
 346                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
 347                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 348                 UNLOCK(flags); mdelay(250); LOCK(flags);
 349                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
 350                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 351                 UNLOCK(flags); mdelay(250); LOCK(flags);
 352                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
 353                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 354                 UNLOCK(flags); mdelay(250);
 355         }
 356         return 0;
 357 }
 358
 359 static long heathrow_floppy_enable(struct device_node *node, long param,
 360                                    long value)
 361 {
 362         return simple_feature_tweak(node, macio_unknown,
 363                 HEATHROW_FCR,
 364                 HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
 365                 value);
 366 }
 367
 368 static long heathrow_mesh_enable(struct device_node *node, long param,
 369                                  long value)
 370 {
 371         struct macio_chip*      macio;
 372         unsigned long           flags;
 373
 374         macio = macio_find(node, macio_unknown);
 375         if (!macio)
 376                 return -ENODEV;
 377         LOCK(flags);
 378         /* Set clear mesh cell enable */
 379         if (value)
 380                 MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
 381         else
 382                 MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
 383         (void)MACIO_IN32(HEATHROW_FCR);
 384         udelay(10);
 385         /* Set/Clear termination power */
 386         if (value)
 387                 MACIO_BIC(HEATHROW_MBCR, 0x04000000);
 388         else
 389                 MACIO_BIS(HEATHROW_MBCR, 0x04000000);
 390         (void)MACIO_IN32(HEATHROW_MBCR);
 391         udelay(10);
 392         UNLOCK(flags);
 393
 394         return 0;
 395 }
 396
 397 static long heathrow_ide_enable(struct device_node *node, long param,
 398                                 long value)
 399 {
 400         switch(param) {
 401         case 0:
 402                 return simple_feature_tweak(node, macio_unknown,
 403                         HEATHROW_FCR, HRW_IDE0_ENABLE, value);
 404         case 1:
 405                 return simple_feature_tweak(node, macio_unknown,
 406                         HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
 407         default:
 408                 return -ENODEV;
 409         }
 410 }
 411
 412 static long heathrow_ide_reset(struct device_node *node, long param,
 413                                long value)
 414 {
 415         switch(param) {
 416         case 0:
 417                 return simple_feature_tweak(node, macio_unknown,
 418                         HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
 419         case 1:
 420                 return simple_feature_tweak(node, macio_unknown,
 421                         HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
 422         default:
 423                 return -ENODEV;
 424         }
 425 }
 426
 427 static long heathrow_bmac_enable(struct device_node *node, long param,
 428                                  long value)
 429 {
 430         struct macio_chip*      macio;
 431         unsigned long           flags;
 432
 433         macio = macio_find(node, 0);
 434         if (!macio)
 435                 return -ENODEV;
 436         if (value) {
 437                 LOCK(flags);
 438                 MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
 439                 MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
 440                 UNLOCK(flags);
 441                 (void)MACIO_IN32(HEATHROW_FCR);
 442                 mdelay(10);
 443                 LOCK(flags);
 444                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
 445                 UNLOCK(flags);
 446                 (void)MACIO_IN32(HEATHROW_FCR);
 447                 mdelay(10);
 448         } else {
 449                 LOCK(flags);
 450                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
 451                 UNLOCK(flags);
 452         }
 453         return 0;
 454 }
 455
 456 static long heathrow_sound_enable(struct device_node *node, long param,
 457                                   long value)
 458 {
 459         struct macio_chip*      macio;
 460         unsigned long           flags;
 461
 462         /* B&W G3 and Yikes don't support that properly (the
 463          * sound appear to never come back after beeing shut down).
 464          */
 465         if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
 466             pmac_mb.model_id == PMAC_TYPE_YIKES)
 467                 return 0;
 468
 469         macio = macio_find(node, 0);
 470         if (!macio)
 471                 return -ENODEV;
 472         if (value) {
 473                 LOCK(flags);
 474                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 475                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
 476                 UNLOCK(flags);
 477                 (void)MACIO_IN32(HEATHROW_FCR);
 478         } else {
 479                 LOCK(flags);
 480                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
 481                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 482                 UNLOCK(flags);
 483         }
 484         return 0;
 485 }
 486
 487 static u32 save_fcr[6];
 488 static u32 save_mbcr;
 489 static u32 save_gpio_levels[2];
 490 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
 491 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
 492 static u32 save_unin_clock_ctl;
 493 static struct dbdma_regs save_dbdma[13];
 494 static struct dbdma_regs save_alt_dbdma[13];
 495
 496 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
 497 {
 498         int i;
 499
 500         /* Save state & config of DBDMA channels */
 501         for (i = 0; i < 13; i++) {
 502                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
 503                         (macio->base + ((0x8000+i*0x100)>>2));
 504                 save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
 505                 save[i].cmdptr = in_le32(&chan->cmdptr);
 506                 save[i].intr_sel = in_le32(&chan->intr_sel);
 507                 save[i].br_sel = in_le32(&chan->br_sel);
 508                 save[i].wait_sel = in_le32(&chan->wait_sel);
 509         }
 510 }
 511
 512 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
 513 {
 514         int i;
 515
 516         /* Save state & config of DBDMA channels */
 517         for (i = 0; i < 13; i++) {
 518                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
 519                         (macio->base + ((0x8000+i*0x100)>>2));
 520                 out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
 521                 while (in_le32(&chan->status) & ACTIVE)
 522                         mb();
 523                 out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
 524                 out_le32(&chan->cmdptr, save[i].cmdptr);
 525                 out_le32(&chan->intr_sel, save[i].intr_sel);
 526                 out_le32(&chan->br_sel, save[i].br_sel);
 527                 out_le32(&chan->wait_sel, save[i].wait_sel);
 528         }
 529 }
 530
 531 static void heathrow_sleep(struct macio_chip *macio, int secondary)
 532 {
 533         if (secondary) {
 534                 dbdma_save(macio, save_alt_dbdma);
 535                 save_fcr[2] = MACIO_IN32(0x38);
 536                 save_fcr[3] = MACIO_IN32(0x3c);
 537         } else {
 538                 dbdma_save(macio, save_dbdma);
 539                 save_fcr[0] = MACIO_IN32(0x38);
 540                 save_fcr[1] = MACIO_IN32(0x3c);
 541                 save_mbcr = MACIO_IN32(0x34);
 542                 /* Make sure sound is shut down */
 543                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
 544                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 545                 /* This seems to be necessary as well or the fan
 546                  * keeps coming up and battery drains fast */
 547                 MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
 548                 MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
 549                 /* Make sure eth is down even if module or sleep
 550                  * won't work properly */
 551                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
 552         }
 553         /* Make sure modem is shut down */
 554         MACIO_OUT8(HRW_GPIO_MODEM_RESET,
 555                 MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
 556         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 557         MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
 558
 559         /* Let things settle */
 560         (void)MACIO_IN32(HEATHROW_FCR);
 561 }
 562
 563 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
 564 {
 565         if (secondary) {
 566                 MACIO_OUT32(0x38, save_fcr[2]);
 567                 (void)MACIO_IN32(0x38);
 568                 mdelay(1);
 569                 MACIO_OUT32(0x3c, save_fcr[3]);
 570                 (void)MACIO_IN32(0x38);
 571                 mdelay(10);
 572                 dbdma_restore(macio, save_alt_dbdma);
 573         } else {
 574                 MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
 575                 (void)MACIO_IN32(0x38);
 576                 mdelay(1);
 577                 MACIO_OUT32(0x3c, save_fcr[1]);
 578                 (void)MACIO_IN32(0x38);
 579                 mdelay(1);
 580                 MACIO_OUT32(0x34, save_mbcr);
 581                 (void)MACIO_IN32(0x38);
 582                 mdelay(10);
 583                 dbdma_restore(macio, save_dbdma);
 584         }
 585 }
 586
 587 static long heathrow_sleep_state(struct device_node *node, long param,
 588                                  long value)
 589 {
 590         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
 591                 return -EPERM;
 592         if (value == 1) {
 593                 if (macio_chips[1].type == macio_gatwick)
 594                         heathrow_sleep(&macio_chips[0], 1);
 595                 heathrow_sleep(&macio_chips[0], 0);
 596         } else if (value == 0) {
 597                 heathrow_wakeup(&macio_chips[0], 0);
 598                 if (macio_chips[1].type == macio_gatwick)
 599                         heathrow_wakeup(&macio_chips[0], 1);
 600         }
 601         return 0;
 602 }
 603
 604 static long core99_scc_enable(struct device_node *node, long param, long value)
 605 {
 606         struct macio_chip*      macio;
 607         unsigned long           flags;
 608         unsigned long           chan_mask;
 609         u32                     fcr;
 610
 611         macio = macio_find(node, 0);
 612         if (!macio)
 613                 return -ENODEV;
 614         if (!strcmp(node->name, "ch-a"))
 615                 chan_mask = MACIO_FLAG_SCCA_ON;
 616         else if (!strcmp(node->name, "ch-b"))
 617                 chan_mask = MACIO_FLAG_SCCB_ON;
 618         else
 619                 return -ENODEV;
 620
 621         if (value) {
 622                 int need_reset_scc = 0;
 623                 int need_reset_irda = 0;
 624
 625                 LOCK(flags);
 626                 fcr = MACIO_IN32(KEYLARGO_FCR0);
 627                 /* Check if scc cell need enabling */
 628                 if (!(fcr & KL0_SCC_CELL_ENABLE)) {
 629                         fcr |= KL0_SCC_CELL_ENABLE;
 630                         need_reset_scc = 1;
 631                 }
 632                 if (chan_mask & MACIO_FLAG_SCCA_ON) {
 633                         fcr |= KL0_SCCA_ENABLE;
 634                         /* Don't enable line drivers for I2S modem */
 635                         if ((param & 0xfff) == PMAC_SCC_I2S1)
 636                                 fcr &= ~KL0_SCC_A_INTF_ENABLE;
 637                         else
 638                                 fcr |= KL0_SCC_A_INTF_ENABLE;
 639                 }
 640                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
 641                         fcr |= KL0_SCCB_ENABLE;
 642                         /* Perform irda specific inits */
 643                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
 644                                 fcr &= ~KL0_SCC_B_INTF_ENABLE;
 645                                 fcr |= KL0_IRDA_ENABLE;
 646                                 fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
 647                                 fcr |= KL0_IRDA_SOURCE1_SEL;
 648                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
 649                                 fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
 650                                 need_reset_irda = 1;
 651                         } else
 652                                 fcr |= KL0_SCC_B_INTF_ENABLE;
 653                 }
 654                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
 655                 macio->flags |= chan_mask;
 656                 if (need_reset_scc)  {
 657                         MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
 658                         (void)MACIO_IN32(KEYLARGO_FCR0);
 659                         UNLOCK(flags);
 660                         mdelay(15);
 661                         LOCK(flags);
 662                         MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
 663                 }
 664                 if (need_reset_irda)  {
 665                         MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
 666                         (void)MACIO_IN32(KEYLARGO_FCR0);
 667                         UNLOCK(flags);
 668                         mdelay(15);
 669                         LOCK(flags);
 670                         MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
 671                 }
 672                 UNLOCK(flags);
 673                 if (param & PMAC_SCC_FLAG_XMON)
 674                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
 675         } else {
 676                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
 677                         return -EPERM;
 678                 LOCK(flags);
 679                 fcr = MACIO_IN32(KEYLARGO_FCR0);
 680                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 681                         fcr &= ~KL0_SCCA_ENABLE;
 682                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
 683                         fcr &= ~KL0_SCCB_ENABLE;
 684                         /* Perform irda specific clears */
 685                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
 686                                 fcr &= ~KL0_IRDA_ENABLE;
 687                                 fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
 688                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
 689                                 fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
 690                         }
 691                 }
 692                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
 693                 if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
 694                         fcr &= ~KL0_SCC_CELL_ENABLE;
 695                         MACIO_OUT32(KEYLARGO_FCR0, fcr);
 696                 }
 697                 macio->flags &= ~(chan_mask);
 698                 UNLOCK(flags);
 699                 mdelay(10);
 700         }
 701         return 0;
 702 }
 703
 704 static long
 705 core99_modem_enable(struct device_node *node, long param, long value)
 706 {
 707         struct macio_chip*      macio;
 708         u8                      gpio;
 709         unsigned long           flags;
 710
 711         /* Hack for internal USB modem */
 712         if (node == NULL) {
 713                 if (macio_chips[0].type != macio_keylargo)
 714                         return -ENODEV;
 715                 node = macio_chips[0].of_node;
 716         }
 717         macio = macio_find(node, 0);
 718         if (!macio)
 719                 return -ENODEV;
 720         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
 721         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
 722         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
 723
 724         if (!value) {
 725                 LOCK(flags);
 726                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 727                 UNLOCK(flags);
 728                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 729                 mdelay(250);
 730         }
 731         LOCK(flags);
 732         if (value) {
 733                 MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
 734                 UNLOCK(flags);
 735                 (void)MACIO_IN32(KEYLARGO_FCR2);
 736                 mdelay(250);
 737         } else {
 738                 MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
 739                 UNLOCK(flags);
 740         }
 741         if (value) {
 742                 LOCK(flags);
 743                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 744                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 745                 UNLOCK(flags); mdelay(250); LOCK(flags);
 746                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 747                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 748                 UNLOCK(flags); mdelay(250); LOCK(flags);
 749                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 750                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 751                 UNLOCK(flags); mdelay(250);
 752         }
 753         return 0;
 754 }
 755
 756 static long
 757 pangea_modem_enable(struct device_node *node, long param, long value)
 758 {
 759         struct macio_chip*      macio;
 760         u8                      gpio;
 761         unsigned long           flags;
 762
 763         /* Hack for internal USB modem */
 764         if (node == NULL) {
 765                 if (macio_chips[0].type != macio_pangea &&
 766                     macio_chips[0].type != macio_intrepid)
 767                         return -ENODEV;
 768                 node = macio_chips[0].of_node;
 769         }
 770         macio = macio_find(node, 0);
 771         if (!macio)
 772                 return -ENODEV;
 773         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
 774         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
 775         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
 776
 777         if (!value) {
 778                 LOCK(flags);
 779                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 780                 UNLOCK(flags);
 781                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 782                 mdelay(250);
 783         }
 784         LOCK(flags);
 785         if (value) {
 786                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
 787                         KEYLARGO_GPIO_OUTPUT_ENABLE);
 788                 UNLOCK(flags);
 789                 (void)MACIO_IN32(KEYLARGO_FCR2);
 790                 mdelay(250);
 791         } else {
 792                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
 793                         KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
 794                 UNLOCK(flags);
 795         }
 796         if (value) {
 797                 LOCK(flags);
 798                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 799                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 800                 UNLOCK(flags); mdelay(250); LOCK(flags);
 801                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 802                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 803                 UNLOCK(flags); mdelay(250); LOCK(flags);
 804                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 805                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 806                 UNLOCK(flags); mdelay(250);
 807         }
 808         return 0;
 809 }
 810
 811 static long
 812 core99_ata100_enable(struct device_node *node, long value)
 813 {
 814         unsigned long flags;
 815         struct pci_dev *pdev = NULL;
 816         u8 pbus, pid;
 817
 818         if (uninorth_rev < 0x24)
 819                 return -ENODEV;
 820
 821         LOCK(flags);
 822         if (value)
 823                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
 824         else
 825                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
 826         (void)UN_IN(UNI_N_CLOCK_CNTL);
 827         UNLOCK(flags);
 828         udelay(20);
 829
 830         if (value) {
 831                 if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
 832                         pdev = pci_find_slot(pbus, pid);
 833                 if (pdev == NULL)
 834                         return 0;
 835                 pci_enable_device(pdev);
 836                 pci_set_master(pdev);
 837         }
 838         return 0;
 839 }
 840
 841 static long
 842 core99_ide_enable(struct device_node *node, long param, long value)
 843 {
 844         /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
 845          * based ata-100
 846          */
 847         switch(param) {
 848             case 0:
 849                 return simple_feature_tweak(node, macio_unknown,
 850                         KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
 851             case 1:
 852                 return simple_feature_tweak(node, macio_unknown,
 853                         KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
 854             case 2:
 855                 return simple_feature_tweak(node, macio_unknown,
 856                         KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
 857             case 3:
 858                 return core99_ata100_enable(node, value);
 859             default:
 860                 return -ENODEV;
 861         }
 862 }
 863
 864 static long
 865 core99_ide_reset(struct device_node *node, long param, long value)
 866 {
 867         switch(param) {
 868             case 0:
 869                 return simple_feature_tweak(node, macio_unknown,
 870                         KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
 871             case 1:
 872                 return simple_feature_tweak(node, macio_unknown,
 873                         KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
 874             case 2:
 875                 return simple_feature_tweak(node, macio_unknown,
 876                         KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
 877             default:
 878                 return -ENODEV;
 879         }
 880 }
 881
 882 static long
 883 core99_gmac_enable(struct device_node *node, long param, long value)
 884 {
 885         unsigned long flags;
 886
 887         LOCK(flags);
 888         if (value)
 889                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
 890         else
 891                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
 892         (void)UN_IN(UNI_N_CLOCK_CNTL);
 893         UNLOCK(flags);
 894         udelay(20);
 895
 896         return 0;
 897 }
 898
 899 static long
 900 core99_gmac_phy_reset(struct device_node *node, long param, long value)
 901 {
 902         unsigned long flags;
 903         struct macio_chip *macio;
 904
 905         macio = &macio_chips[0];
 906         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
 907             macio->type != macio_intrepid)
 908                 return -ENODEV;
 909
 910         LOCK(flags);
 911         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
 912         (void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
 913         UNLOCK(flags);
 914         mdelay(10);
 915         LOCK(flags);
 916         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
 917                 KEYLARGO_GPIO_OUTOUT_DATA);
 918         UNLOCK(flags);
 919         mdelay(10);
 920
 921         return 0;
 922 }
 923
 924 static long
 925 core99_sound_chip_enable(struct device_node *node, long param, long value)
 926 {
 927         struct macio_chip*      macio;
 928         unsigned long           flags;
 929
 930         macio = macio_find(node, 0);
 931         if (!macio)
 932                 return -ENODEV;
 933
 934         /* Do a better probe code, screamer G4 desktops &
 935          * iMacs can do that too, add a recalibrate  in
 936          * the driver as well
 937          */
 938         if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
 939             pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
 940                 LOCK(flags);
 941                 if (value)
 942                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
 943                                 KEYLARGO_GPIO_OUTPUT_ENABLE |
 944                                 KEYLARGO_GPIO_OUTOUT_DATA);
 945                 else
 946                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
 947                                 KEYLARGO_GPIO_OUTPUT_ENABLE);
 948                 (void)MACIO_IN8(KL_GPIO_SOUND_POWER);
 949                 UNLOCK(flags);
 950         }
 951         return 0;
 952 }
 953
 954 static long
 955 core99_airport_enable(struct device_node *node, long param, long value)
 956 {
 957         struct macio_chip*      macio;
 958         unsigned long           flags;
 959         int                     state;
 960
 961         macio = macio_find(node, 0);
 962         if (!macio)
 963                 return -ENODEV;
 964
 965         /* Hint: we allow passing of macio itself for the sake of the
 966          * sleep code
 967          */
 968         if (node != macio->of_node &&
 969             (!node->parent || node->parent != macio->of_node))
 970                 return -ENODEV;
 971         state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
 972         if (value == state)
 973                 return 0;
 974         if (value) {
 975                 /* This code is a reproduction of OF enable-cardslot
 976                  * and init-wireless methods, slightly hacked until
 977                  * I got it working.
 978                  */
 979                 LOCK(flags);
 980                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
 981                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
 982                 UNLOCK(flags);
 983                 mdelay(10);
 984                 LOCK(flags);
 985                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
 986                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
 987                 UNLOCK(flags);
 988
 989                 mdelay(10);
 990
 991                 LOCK(flags);
 992                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
 993                 (void)MACIO_IN32(KEYLARGO_FCR2);
 994                 udelay(10);
 995                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
 996                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
 997                 udelay(10);
 998                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
 999                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
1000                 udelay(10);
1001                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1002                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1003                 udelay(10);
1004                 MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1005                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1006                 udelay(10);
1007                 MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1008                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1009                 UNLOCK(flags);
1010                 udelay(10);
1011                 MACIO_OUT32(0x1c000, 0);
1012                 mdelay(1);
1013                 MACIO_OUT8(0x1a3e0, 0x41);
1014                 (void)MACIO_IN8(0x1a3e0);
1015                 udelay(10);
1016                 LOCK(flags);
1017                 MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1018                 (void)MACIO_IN32(KEYLARGO_FCR2);
1019                 UNLOCK(flags);
1020                 mdelay(100);
1021
1022                 macio->flags |= MACIO_FLAG_AIRPORT_ON;
1023         } else {
1024                 LOCK(flags);
1025                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1026                 (void)MACIO_IN32(KEYLARGO_FCR2);
1027                 MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1028                 MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1029                 MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1030                 MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1031                 MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1032                 (void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1033                 UNLOCK(flags);
1034
1035                 macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1036         }
1037         return 0;
1038 }
1039
1040 #ifdef CONFIG_SMP
1041 static long
1042 core99_reset_cpu(struct device_node *node, long param, long value)
1043 {
1044         unsigned int reset_io = 0;
1045         unsigned long flags;
1046         struct macio_chip *macio;
1047         struct device_node *np;
1048         const int dflt_reset_lines[] = {        KL_GPIO_RESET_CPU0,
1049                                                 KL_GPIO_RESET_CPU1,
1050                                                 KL_GPIO_RESET_CPU2,
1051                                                 KL_GPIO_RESET_CPU3 };
1052
1053         macio = &macio_chips[0];
1054         if (macio->type != macio_keylargo)
1055                 return -ENODEV;
1056
1057         np = find_path_device("/cpus");
1058         if (np == NULL)
1059                 return -ENODEV;
1060         for (np = np->child; np != NULL; np = np->sibling) {
1061                 u32 *num = get_property(np, "reg", NULL);
1062                 u32 *rst = get_property(np, "soft-reset", NULL);
1063                 if (num == NULL || rst == NULL)
1064                         continue;
1065                 if (param == *num) {
1066                         reset_io = *rst;
1067                         break;
1068                 }
1069         }
1070         if (np == NULL || reset_io == 0)
1071                 reset_io = dflt_reset_lines[param];
1072
1073         LOCK(flags);
1074         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1075         (void)MACIO_IN8(reset_io);
1076         udelay(1);
1077         MACIO_OUT8(reset_io, 0);
1078         (void)MACIO_IN8(reset_io);
1079         UNLOCK(flags);
1080
1081         return 0;
1082 }
1083 #endif /* CONFIG_SMP */
1084
1085 static long
1086 core99_usb_enable(struct device_node *node, long param, long value)
1087 {
1088         struct macio_chip *macio;
1089         unsigned long flags;
1090         const char *prop;
1091         int number;
1092         u32 reg;
1093
1094         macio = &macio_chips[0];
1095         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1096             macio->type != macio_intrepid)
1097                 return -ENODEV;
1098
1099         prop = get_property(node, "AAPL,clock-id", NULL);
1100         if (!prop)
1101                 return -ENODEV;
1102         if (strncmp(prop, "usb0u048", 8) == 0)
1103                 number = 0;
1104         else if (strncmp(prop, "usb1u148", 8) == 0)
1105                 number = 2;
1106         else if (strncmp(prop, "usb2u248", 8) == 0)
1107                 number = 4;
1108         else
1109                 return -ENODEV;
1110
1111         /* Sorry for the brute-force locking, but this is only used during
1112          * sleep and the timing seem to be critical
1113          */
1114         LOCK(flags);
1115         if (value) {
1116                 /* Turn ON */
1117                 if (number == 0) {
1118                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1119                         (void)MACIO_IN32(KEYLARGO_FCR0);
1120                         UNLOCK(flags);
1121                         mdelay(1);
1122                         LOCK(flags);
1123                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1124                 } else if (number == 2) {
1125                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1126                         UNLOCK(flags);
1127                         (void)MACIO_IN32(KEYLARGO_FCR0);
1128                         mdelay(1);
1129                         LOCK(flags);
1130                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1131                 } else if (number == 4) {
1132                         MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1133                         UNLOCK(flags);
1134                         (void)MACIO_IN32(KEYLARGO_FCR1);
1135                         mdelay(1);
1136                         LOCK(flags);
1137                         MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1138                 }
1139                 if (number < 4) {
1140                         reg = MACIO_IN32(KEYLARGO_FCR4);
1141                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1142                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1143                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1144                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1145                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1146                         (void)MACIO_IN32(KEYLARGO_FCR4);
1147                         udelay(10);
1148                 } else {
1149                         reg = MACIO_IN32(KEYLARGO_FCR3);
1150                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1151                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1152                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1153                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1154                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1155                         (void)MACIO_IN32(KEYLARGO_FCR3);
1156                         udelay(10);
1157                 }
1158                 if (macio->type == macio_intrepid) {
1159                         /* wait for clock stopped bits to clear */
1160                         u32 test0 = 0, test1 = 0;
1161                         u32 status0, status1;
1162                         int timeout = 1000;
1163
1164                         UNLOCK(flags);
1165                         switch (number) {
1166                         case 0:
1167                                 test0 = UNI_N_CLOCK_STOPPED_USB0;
1168                                 test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1169                                 break;
1170                         case 2:
1171                                 test0 = UNI_N_CLOCK_STOPPED_USB1;
1172                                 test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1173                                 break;
1174                         case 4:
1175                                 test0 = UNI_N_CLOCK_STOPPED_USB2;
1176                                 test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1177                                 break;
1178                         }
1179                         do {
1180                                 if (--timeout <= 0) {
1181                                         printk(KERN_ERR "core99_usb_enable: "
1182                                                "Timeout waiting for clocks\n");
1183                                         break;
1184                                 }
1185                                 mdelay(1);
1186                                 status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1187                                 status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1188                         } while ((status0 & test0) | (status1 & test1));
1189                         LOCK(flags);
1190                 }
1191         } else {
1192                 /* Turn OFF */
1193                 if (number < 4) {
1194                         reg = MACIO_IN32(KEYLARGO_FCR4);
1195                         reg |=  KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1196                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1197                         reg |=  KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1198                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1199                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1200                         (void)MACIO_IN32(KEYLARGO_FCR4);
1201                         udelay(1);
1202                 } else {
1203                         reg = MACIO_IN32(KEYLARGO_FCR3);
1204                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1205                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1206                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1207                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1208                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1209                         (void)MACIO_IN32(KEYLARGO_FCR3);
1210                         udelay(1);
1211                 }
1212                 if (number == 0) {
1213                         if (macio->type != macio_intrepid)
1214                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1215                         (void)MACIO_IN32(KEYLARGO_FCR0);
1216                         udelay(1);
1217                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1218                         (void)MACIO_IN32(KEYLARGO_FCR0);
1219                 } else if (number == 2) {
1220                         if (macio->type != macio_intrepid)
1221                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1222                         (void)MACIO_IN32(KEYLARGO_FCR0);
1223                         udelay(1);
1224                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1225                         (void)MACIO_IN32(KEYLARGO_FCR0);
1226                 } else if (number == 4) {
1227                         udelay(1);
1228                         MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1229                         (void)MACIO_IN32(KEYLARGO_FCR1);
1230                 }
1231                 udelay(1);
1232         }
1233         UNLOCK(flags);
1234
1235         return 0;
1236 }
1237
1238 static long
1239 core99_firewire_enable(struct device_node *node, long param, long value)
1240 {
1241         unsigned long flags;
1242         struct macio_chip *macio;
1243
1244         macio = &macio_chips[0];
1245         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1246             macio->type != macio_intrepid)
1247                 return -ENODEV;
1248         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1249                 return -ENODEV;
1250
1251         LOCK(flags);
1252         if (value) {
1253                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1254                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1255         } else {
1256                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1257                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1258         }
1259         UNLOCK(flags);
1260         mdelay(1);
1261
1262         return 0;
1263 }
1264
1265 static long
1266 core99_firewire_cable_power(struct device_node *node, long param, long value)
1267 {
1268         unsigned long flags;
1269         struct macio_chip *macio;
1270
1271         /* Trick: we allow NULL node */
1272         if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1273                 return -ENODEV;
1274         macio = &macio_chips[0];
1275         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1276             macio->type != macio_intrepid)
1277                 return -ENODEV;
1278         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1279                 return -ENODEV;
1280
1281         LOCK(flags);
1282         if (value) {
1283                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1284                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1285                 udelay(10);
1286         } else {
1287                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1288                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1289         }
1290         UNLOCK(flags);
1291         mdelay(1);
1292
1293         return 0;
1294 }
1295
1296 static long
1297 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1298 {
1299         unsigned long flags;
1300
1301         if (uninorth_rev < 0xd2)
1302                 return -ENODEV;
1303
1304         LOCK(flags);
1305         if (param)
1306                 UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1307         else
1308                 UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1309         UNLOCK(flags);
1310
1311         return 0;
1312 }
1313
1314
1315 #endif /* CONFIG_POWER4 */
1316
1317 static long
1318 core99_read_gpio(struct device_node *node, long param, long value)
1319 {
1320         struct macio_chip *macio = &macio_chips[0];
1321
1322         return MACIO_IN8(param);
1323 }
1324
1325
1326 static long
1327 core99_write_gpio(struct device_node *node, long param, long value)
1328 {
1329         struct macio_chip *macio = &macio_chips[0];
1330
1331         MACIO_OUT8(param, (u8)(value & 0xff));
1332         return 0;
1333 }
1334
1335 #ifdef CONFIG_POWER4
1336 static long g5_gmac_enable(struct device_node *node, long param, long value)
1337 {
1338         struct macio_chip *macio = &macio_chips[0];
1339         unsigned long flags;
1340
1341         if (node == NULL)
1342                 return -ENODEV;
1343
1344         LOCK(flags);
1345         if (value) {
1346                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1347                 mb();
1348                 k2_skiplist[0] = NULL;
1349         } else {
1350                 k2_skiplist[0] = node;
1351                 mb();
1352                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1353         }
1354
1355         UNLOCK(flags);
1356         mdelay(1);
1357
1358         return 0;
1359 }
1360
1361 static long g5_fw_enable(struct device_node *node, long param, long value)
1362 {
1363         struct macio_chip *macio = &macio_chips[0];
1364         unsigned long flags;
1365
1366         if (node == NULL)
1367                 return -ENODEV;
1368
1369         LOCK(flags);
1370         if (value) {
1371                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1372                 mb();
1373                 k2_skiplist[1] = NULL;
1374         } else {
1375                 k2_skiplist[1] = node;
1376                 mb();
1377                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1378         }
1379
1380         UNLOCK(flags);
1381         mdelay(1);
1382
1383         return 0;
1384 }
1385
1386 static long g5_mpic_enable(struct device_node *node, long param, long value)
1387 {
1388         unsigned long flags;
1389         struct device_node *parent = of_get_parent(node);
1390         int is_u3;
1391
1392         if (parent == NULL)
1393                 return 0;
1394         is_u3 = strcmp(parent->name, "u3") == 0 ||
1395                 strcmp(parent->name, "u4") == 0;
1396         of_node_put(parent);
1397         if (!is_u3)
1398                 return 0;
1399
1400         LOCK(flags);
1401         UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1402         UNLOCK(flags);
1403
1404         return 0;
1405 }
1406
1407 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1408 {
1409         struct macio_chip *macio = &macio_chips[0];
1410         struct device_node *phy;
1411         int need_reset;
1412
1413         /*
1414          * We must not reset the combo PHYs, only the BCM5221 found in
1415          * the iMac G5.
1416          */
1417         phy = of_get_next_child(node, NULL);
1418         if (!phy)
1419                 return -ENODEV;
1420         need_reset = device_is_compatible(phy, "B5221");
1421         of_node_put(phy);
1422         if (!need_reset)
1423                 return 0;
1424
1425         /* PHY reset is GPIO 29, not in device-tree unfortunately */
1426         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1427                    KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1428         /* Thankfully, this is now always called at a time when we can
1429          * schedule by sungem.
1430          */
1431         msleep(10);
1432         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1433
1434         return 0;
1435 }
1436
1437 static long g5_i2s_enable(struct device_node *node, long param, long value)
1438 {
1439         /* Very crude implementation for now */
1440         struct macio_chip *macio = &macio_chips[0];
1441         unsigned long flags;
1442         int cell;
1443         u32 fcrs[3][3] = {
1444                 { 0,
1445                   K2_FCR1_I2S0_CELL_ENABLE |
1446                   K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
1447                   KL3_I2S0_CLK18_ENABLE
1448                 },
1449                 { KL0_SCC_A_INTF_ENABLE,
1450                   K2_FCR1_I2S1_CELL_ENABLE |
1451                   K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
1452                   KL3_I2S1_CLK18_ENABLE
1453                 },
1454                 { KL0_SCC_B_INTF_ENABLE,
1455                   SH_FCR1_I2S2_CELL_ENABLE |
1456                   SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
1457                   SH_FCR3_I2S2_CLK18_ENABLE
1458                 },
1459         };
1460
1461         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1462                 return -ENODEV;
1463         if (strncmp(node->name, "i2s-", 4))
1464                 return -ENODEV;
1465         cell = node->name[4] - 'a';
1466         switch(cell) {
1467         case 0:
1468         case 1:
1469                 break;
1470         case 2:
1471                 if (macio->type == macio_shasta)
1472                         break;
1473         default:
1474                 return -ENODEV;
1475         }
1476
1477         LOCK(flags);
1478         if (value) {
1479                 MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
1480                 MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
1481                 MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
1482         } else {
1483                 MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
1484                 MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
1485                 MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
1486         }
1487         udelay(10);
1488         UNLOCK(flags);
1489
1490         return 0;
1491 }
1492
1493
1494 #ifdef CONFIG_SMP
1495 static long g5_reset_cpu(struct device_node *node, long param, long value)
1496 {
1497         unsigned int reset_io = 0;
1498         unsigned long flags;
1499         struct macio_chip *macio;
1500         struct device_node *np;
1501
1502         macio = &macio_chips[0];
1503         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1504                 return -ENODEV;
1505
1506         np = find_path_device("/cpus");
1507         if (np == NULL)
1508                 return -ENODEV;
1509         for (np = np->child; np != NULL; np = np->sibling) {
1510                 const u32 *num = get_property(np, "reg", NULL);
1511                 const u32 *rst = get_property(np, "soft-reset", NULL);
1512                 if (num == NULL || rst == NULL)
1513                         continue;
1514                 if (param == *num) {
1515                         reset_io = *rst;
1516                         break;
1517                 }
1518         }
1519         if (np == NULL || reset_io == 0)
1520                 return -ENODEV;
1521
1522         LOCK(flags);
1523         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1524         (void)MACIO_IN8(reset_io);
1525         udelay(1);
1526         MACIO_OUT8(reset_io, 0);
1527         (void)MACIO_IN8(reset_io);
1528         UNLOCK(flags);
1529
1530         return 0;
1531 }
1532 #endif /* CONFIG_SMP */
1533
1534 /*
1535  * This can be called from pmac_smp so isn't static
1536  *
1537  * This takes the second CPU off the bus on dual CPU machines
1538  * running UP
1539  */
1540 void g5_phy_disable_cpu1(void)
1541 {
1542         if (uninorth_maj == 3)
1543                 UN_OUT(U3_API_PHY_CONFIG_1, 0);
1544 }
1545 #endif /* CONFIG_POWER4 */
1546
1547 #ifndef CONFIG_POWER4
1548
1549
1550 #ifdef CONFIG_PM
1551
1552 static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1553 {
1554         u32 temp;
1555
1556         if (sleep_mode) {
1557                 mdelay(1);
1558                 MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1559                 (void)MACIO_IN32(KEYLARGO_FCR0);
1560                 mdelay(1);
1561         }
1562
1563         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1564                                 KL0_SCC_CELL_ENABLE |
1565                                 KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1566                                 KL0_IRDA_CLK19_ENABLE);
1567
1568         MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1569         MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1570
1571         MACIO_BIC(KEYLARGO_FCR1,
1572                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1573                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1574                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1575                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1576                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1577                 KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1578                 KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1579                 KL1_UIDE_ENABLE);
1580
1581         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1582         MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1583
1584         temp = MACIO_IN32(KEYLARGO_FCR3);
1585         if (macio->rev >= 2) {
1586                 temp |= KL3_SHUTDOWN_PLL2X;
1587                 if (sleep_mode)
1588                         temp |= KL3_SHUTDOWN_PLL_TOTAL;
1589         }
1590
1591         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1592                 KL3_SHUTDOWN_PLLKW35;
1593         if (sleep_mode)
1594                 temp |= KL3_SHUTDOWN_PLLKW12;
1595         temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1596                 | KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1597         if (sleep_mode)
1598                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1599         MACIO_OUT32(KEYLARGO_FCR3, temp);
1600
1601         /* Flush posted writes & wait a bit */
1602         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1603 }
1604
1605 static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1606 {
1607         u32 temp;
1608
1609         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1610                                 KL0_SCC_CELL_ENABLE |
1611                                 KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1612
1613         MACIO_BIC(KEYLARGO_FCR1,
1614                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1615                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1616                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1617                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1618                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1619                 KL1_UIDE_ENABLE);
1620         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1621                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1622
1623         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1624
1625         temp = MACIO_IN32(KEYLARGO_FCR3);
1626         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1627                 KL3_SHUTDOWN_PLLKW35;
1628         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1629                 | KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1630         if (sleep_mode)
1631                 temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1632         MACIO_OUT32(KEYLARGO_FCR3, temp);
1633
1634         /* Flush posted writes & wait a bit */
1635         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1636 }
1637
1638 static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1639 {
1640         u32 temp;
1641
1642         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1643                   KL0_SCC_CELL_ENABLE);
1644
1645         MACIO_BIC(KEYLARGO_FCR1,
1646                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1647                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1648                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1649                 KL1_EIDE0_ENABLE);
1650         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1651                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1652
1653         temp = MACIO_IN32(KEYLARGO_FCR3);
1654         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1655                   KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1656         if (sleep_mode)
1657                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1658         MACIO_OUT32(KEYLARGO_FCR3, temp);
1659
1660         /* Flush posted writes & wait a bit */
1661         (void)MACIO_IN32(KEYLARGO_FCR0);
1662         mdelay(10);
1663 }
1664
1665
1666 static int
1667 core99_sleep(void)
1668 {
1669         struct macio_chip *macio;
1670         int i;
1671
1672         macio = &macio_chips[0];
1673         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1674             macio->type != macio_intrepid)
1675                 return -ENODEV;
1676
1677         /* We power off the wireless slot in case it was not done
1678          * by the driver. We don't power it on automatically however
1679          */
1680         if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1681                 core99_airport_enable(macio->of_node, 0, 0);
1682
1683         /* We power off the FW cable. Should be done by the driver... */
1684         if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1685                 core99_firewire_enable(NULL, 0, 0);
1686                 core99_firewire_cable_power(NULL, 0, 0);
1687         }
1688
1689         /* We make sure int. modem is off (in case driver lost it) */
1690         if (macio->type == macio_keylargo)
1691                 core99_modem_enable(macio->of_node, 0, 0);
1692         else
1693                 pangea_modem_enable(macio->of_node, 0, 0);
1694
1695         /* We make sure the sound is off as well */
1696         core99_sound_chip_enable(macio->of_node, 0, 0);
1697
1698         /*
1699          * Save various bits of KeyLargo
1700          */
1701
1702         /* Save the state of the various GPIOs */
1703         save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1704         save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1705         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1706                 save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1707         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1708                 save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1709
1710         /* Save the FCRs */
1711         if (macio->type == macio_keylargo)
1712                 save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1713         save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1714         save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1715         save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1716         save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1717         save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1718         if (macio->type == macio_pangea || macio->type == macio_intrepid)
1719                 save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1720
1721         /* Save state & config of DBDMA channels */
1722         dbdma_save(macio, save_dbdma);
1723
1724         /*
1725          * Turn off as much as we can
1726          */
1727         if (macio->type == macio_pangea)
1728                 pangea_shutdown(macio, 1);
1729         else if (macio->type == macio_intrepid)
1730                 intrepid_shutdown(macio, 1);
1731         else if (macio->type == macio_keylargo)
1732                 keylargo_shutdown(macio, 1);
1733
1734         /*
1735          * Put the host bridge to sleep
1736          */
1737
1738         save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1739         /* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1740          * enabled !
1741          */
1742         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1743                ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1744         udelay(100);
1745         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1746         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1747         mdelay(10);
1748
1749         /*
1750          * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1751          */
1752         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1753                 MACIO_BIS(0x506e0, 0x00400000);
1754                 MACIO_BIS(0x506e0, 0x80000000);
1755         }
1756         return 0;
1757 }
1758
1759 static int
1760 core99_wake_up(void)
1761 {
1762         struct macio_chip *macio;
1763         int i;
1764
1765         macio = &macio_chips[0];
1766         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1767             macio->type != macio_intrepid)
1768                 return -ENODEV;
1769
1770         /*
1771          * Wakeup the host bridge
1772          */
1773         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1774         udelay(10);
1775         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1776         udelay(10);
1777
1778         /*
1779          * Restore KeyLargo
1780          */
1781
1782         if (macio->type == macio_keylargo) {
1783                 MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1784                 (void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1785         }
1786         MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1787         (void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1788         MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1789         (void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1790         MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1791         (void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1792         MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1793         (void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1794         MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1795         (void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1796         if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1797                 MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1798                 (void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1799         }
1800
1801         dbdma_restore(macio, save_dbdma);
1802
1803         MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1804         MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1805         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1806                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1807         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1808                 MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1809
1810         /* FIXME more black magic with OpenPIC ... */
1811         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1812                 MACIO_BIC(0x506e0, 0x00400000);
1813                 MACIO_BIC(0x506e0, 0x80000000);
1814         }
1815
1816         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1817         udelay(100);
1818
1819         return 0;
1820 }
1821
1822 #endif /* CONFIG_PM */
1823
1824 static long
1825 core99_sleep_state(struct device_node *node, long param, long value)
1826 {
1827         /* Param == 1 means to enter the "fake sleep" mode that is
1828          * used for CPU speed switch
1829          */
1830         if (param == 1) {
1831                 if (value == 1) {
1832                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1833                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1834                 } else {
1835                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1836                         udelay(10);
1837                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1838                         udelay(10);
1839                 }
1840                 return 0;
1841         }
1842         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1843                 return -EPERM;
1844
1845 #ifdef CONFIG_PM
1846         if (value == 1)
1847                 return core99_sleep();
1848         else if (value == 0)
1849                 return core99_wake_up();
1850
1851 #endif /* CONFIG_PM */
1852         return 0;
1853 }
1854
1855 #endif /* CONFIG_POWER4 */
1856
1857 static long
1858 generic_dev_can_wake(struct device_node *node, long param, long value)
1859 {
1860         /* Todo: eventually check we are really dealing with on-board
1861          * video device ...
1862          */
1863
1864         if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1865                 pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1866         return 0;
1867 }
1868
1869 static long generic_get_mb_info(struct device_node *node, long param, long value)
1870 {
1871         switch(param) {
1872                 case PMAC_MB_INFO_MODEL:
1873                         return pmac_mb.model_id;
1874                 case PMAC_MB_INFO_FLAGS:
1875                         return pmac_mb.board_flags;
1876                 case PMAC_MB_INFO_NAME:
1877                         /* hack hack hack... but should work */
1878                         *((const char **)value) = pmac_mb.model_name;
1879                         return 0;
1880         }
1881         return -EINVAL;
1882 }
1883
1884
1885 /*
1886  * Table definitions
1887  */
1888
1889 /* Used on any machine
1890  */
1891 static struct feature_table_entry any_features[] = {
1892         { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
1893         { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
1894         { 0, NULL }
1895 };
1896
1897 #ifndef CONFIG_POWER4
1898
1899 /* OHare based motherboards. Currently, we only use these on the
1900  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1901  * to have issues with turning on/off those asic cells
1902  */
1903 static struct feature_table_entry ohare_features[] = {
1904         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1905         { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
1906         { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
1907         { PMAC_FTR_IDE_ENABLE,          ohare_ide_enable},
1908         { PMAC_FTR_IDE_RESET,           ohare_ide_reset},
1909         { PMAC_FTR_SLEEP_STATE,         ohare_sleep_state },
1910         { 0, NULL }
1911 };
1912
1913 /* Heathrow desktop machines (Beige G3).
1914  * Separated as some features couldn't be properly tested
1915  * and the serial port control bits appear to confuse it.
1916  */
1917 static struct feature_table_entry heathrow_desktop_features[] = {
1918         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1919         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1920         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1921         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1922         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1923         { 0, NULL }
1924 };
1925
1926 /* Heathrow based laptop, that is the Wallstreet and mainstreet
1927  * powerbooks.
1928  */
1929 static struct feature_table_entry heathrow_laptop_features[] = {
1930         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1931         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1932         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1933         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1934         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1935         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1936         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1937         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1938         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1939         { 0, NULL }
1940 };
1941
1942 /* Paddington based machines
1943  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
1944  */
1945 static struct feature_table_entry paddington_features[] = {
1946         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1947         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1948         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1949         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1950         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1951         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1952         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1953         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1954         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1955         { 0, NULL }
1956 };
1957
1958 /* Core99 & MacRISC 2 machines (all machines released since the
1959  * iBook (included), that is all AGP machines, except pangea
1960  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
1961  * used on iBook2 & iMac "flow power".
1962  */
1963 static struct feature_table_entry core99_features[] = {
1964         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1965         { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
1966         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1967         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1968         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1969         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1970         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
1971         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
1972         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1973         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1974         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
1975 #ifdef CONFIG_PM
1976         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
1977 #endif
1978 #ifdef CONFIG_SMP
1979         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
1980 #endif /* CONFIG_SMP */
1981         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
1982         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
1983         { 0, NULL }
1984 };
1985
1986 /* RackMac
1987  */
1988 static struct feature_table_entry rackmac_features[] = {
1989         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1990         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1991         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1992         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1993         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1994         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1995         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1996         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
1997         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
1998 #ifdef CONFIG_SMP
1999         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
2000 #endif /* CONFIG_SMP */
2001         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2002         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2003         { 0, NULL }
2004 };
2005
2006 /* Pangea features
2007  */
2008 static struct feature_table_entry pangea_features[] = {
2009         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2010         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2011         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2012         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2013         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2014         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2015         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2016         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2017         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2018         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2019         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2020         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2021         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2022         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2023         { 0, NULL }
2024 };
2025
2026 /* Intrepid features
2027  */
2028 static struct feature_table_entry intrepid_features[] = {
2029         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2030         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2031         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2032         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2033         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2034         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2035         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2036         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2037         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2038         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2039         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2040         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2041         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2042         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2043         { PMAC_FTR_AACK_DELAY_ENABLE,   intrepid_aack_delay_enable },
2044         { 0, NULL }
2045 };
2046
2047 #else /* CONFIG_POWER4 */
2048
2049 /* G5 features
2050  */
2051 static struct feature_table_entry g5_features[] = {
2052         { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
2053         { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
2054         { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
2055         { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
2056         { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
2057 #ifdef CONFIG_SMP
2058         { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
2059 #endif /* CONFIG_SMP */
2060         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2061         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2062         { 0, NULL }
2063 };
2064
2065 #endif /* CONFIG_POWER4 */
2066
2067 static struct pmac_mb_def pmac_mb_defs[] = {
2068 #ifndef CONFIG_POWER4
2069         /*
2070          * Desktops
2071          */
2072
2073         {       "AAPL,8500",                    "PowerMac 8500/8600",
2074                 PMAC_TYPE_PSURGE,               NULL,
2075                 0
2076         },
2077         {       "AAPL,9500",                    "PowerMac 9500/9600",
2078                 PMAC_TYPE_PSURGE,               NULL,
2079                 0
2080         },
2081         {       "AAPL,7200",                    "PowerMac 7200",
2082                 PMAC_TYPE_PSURGE,               NULL,
2083                 0
2084         },
2085         {       "AAPL,7300",                    "PowerMac 7200/7300",
2086                 PMAC_TYPE_PSURGE,               NULL,
2087                 0
2088         },
2089         {       "AAPL,7500",                    "PowerMac 7500",
2090                 PMAC_TYPE_PSURGE,               NULL,
2091                 0
2092         },
2093         {       "AAPL,ShinerESB",               "Apple Network Server",
2094                 PMAC_TYPE_ANS,                  NULL,
2095                 0
2096         },
2097         {       "AAPL,e407",                    "Alchemy",
2098                 PMAC_TYPE_ALCHEMY,              NULL,
2099                 0
2100         },
2101         {       "AAPL,e411",                    "Gazelle",
2102                 PMAC_TYPE_GAZELLE,              NULL,
2103                 0
2104         },
2105         {       "AAPL,Gossamer",                "PowerMac G3 (Gossamer)",
2106                 PMAC_TYPE_GOSSAMER,             heathrow_desktop_features,
2107                 0
2108         },
2109         {       "AAPL,PowerMac G3",             "PowerMac G3 (Silk)",
2110                 PMAC_TYPE_SILK,                 heathrow_desktop_features,
2111                 0
2112         },
2113         {       "PowerMac1,1",                  "Blue&White G3",
2114                 PMAC_TYPE_YOSEMITE,             paddington_features,
2115                 0
2116         },
2117         {       "PowerMac1,2",                  "PowerMac G4 PCI Graphics",
2118                 PMAC_TYPE_YIKES,                paddington_features,
2119                 0
2120         },
2121         {       "PowerMac2,1",                  "iMac FireWire",
2122                 PMAC_TYPE_FW_IMAC,              core99_features,
2123                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2124         },
2125         {       "PowerMac2,2",                  "iMac FireWire",
2126                 PMAC_TYPE_FW_IMAC,              core99_features,
2127                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2128         },
2129         {       "PowerMac3,1",                  "PowerMac G4 AGP Graphics",
2130                 PMAC_TYPE_SAWTOOTH,             core99_features,
2131                 PMAC_MB_OLD_CORE99
2132         },
2133         {       "PowerMac3,2",                  "PowerMac G4 AGP Graphics",
2134                 PMAC_TYPE_SAWTOOTH,             core99_features,
2135                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2136         },
2137         {       "PowerMac3,3",                  "PowerMac G4 AGP Graphics",
2138                 PMAC_TYPE_SAWTOOTH,             core99_features,
2139                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2140         },
2141         {       "PowerMac3,4",                  "PowerMac G4 Silver",
2142                 PMAC_TYPE_QUICKSILVER,          core99_features,
2143                 PMAC_MB_MAY_SLEEP
2144         },
2145         {       "PowerMac3,5",                  "PowerMac G4 Silver",
2146                 PMAC_TYPE_QUICKSILVER,          core99_features,
2147                 PMAC_MB_MAY_SLEEP
2148         },
2149         {       "PowerMac3,6",                  "PowerMac G4 Windtunnel",
2150                 PMAC_TYPE_WINDTUNNEL,           core99_features,
2151                 PMAC_MB_MAY_SLEEP,
2152         },
2153         {       "PowerMac4,1",                  "iMac \"Flower Power\"",
2154                 PMAC_TYPE_PANGEA_IMAC,          pangea_features,
2155                 PMAC_MB_MAY_SLEEP
2156         },
2157         {       "PowerMac4,2",                  "Flat panel iMac",
2158                 PMAC_TYPE_FLAT_PANEL_IMAC,      pangea_features,
2159                 PMAC_MB_CAN_SLEEP
2160         },
2161         {       "PowerMac4,4",                  "eMac",
2162                 PMAC_TYPE_EMAC,                 core99_features,
2163                 PMAC_MB_MAY_SLEEP
2164         },
2165         {       "PowerMac5,1",                  "PowerMac G4 Cube",
2166                 PMAC_TYPE_CUBE,                 core99_features,
2167                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2168         },
2169         {       "PowerMac6,1",                  "Flat panel iMac",
2170                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2171                 PMAC_MB_MAY_SLEEP,
2172         },
2173         {       "PowerMac6,3",                  "Flat panel iMac",
2174                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2175                 PMAC_MB_MAY_SLEEP,
2176         },
2177         {       "PowerMac6,4",                  "eMac",
2178                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2179                 PMAC_MB_MAY_SLEEP,
2180         },
2181         {       "PowerMac10,1",                 "Mac mini",
2182                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2183                 PMAC_MB_MAY_SLEEP,
2184         },
2185         {       "iMac,1",                       "iMac (first generation)",
2186                 PMAC_TYPE_ORIG_IMAC,            paddington_features,
2187                 0
2188         },
2189
2190         /*
2191          * Xserve's
2192          */
2193
2194         {       "RackMac1,1",                   "XServe",
2195                 PMAC_TYPE_RACKMAC,              rackmac_features,
2196                 0,
2197         },
2198         {       "RackMac1,2",                   "XServe rev. 2",
2199                 PMAC_TYPE_RACKMAC,              rackmac_features,
2200                 0,
2201         },
2202
2203         /*
2204          * Laptops
2205          */
2206
2207         {       "AAPL,3400/2400",               "PowerBook 3400",
2208                 PMAC_TYPE_HOOPER,               ohare_features,
2209                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2210         },
2211         {       "AAPL,3500",                    "PowerBook 3500",
2212                 PMAC_TYPE_KANGA,                ohare_features,
2213                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2214         },
2215         {       "AAPL,PowerBook1998",           "PowerBook Wallstreet",
2216                 PMAC_TYPE_WALLSTREET,           heathrow_laptop_features,
2217                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2218         },
2219         {       "PowerBook1,1",                 "PowerBook 101 (Lombard)",
2220                 PMAC_TYPE_101_PBOOK,            paddington_features,
2221                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2222         },
2223         {       "PowerBook2,1",                 "iBook (first generation)",
2224                 PMAC_TYPE_ORIG_IBOOK,           core99_features,
2225                 PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2226         },
2227         {       "PowerBook2,2",                 "iBook FireWire",
2228                 PMAC_TYPE_FW_IBOOK,             core99_features,
2229                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2230                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2231         },
2232         {       "PowerBook3,1",                 "PowerBook Pismo",
2233                 PMAC_TYPE_PISMO,                core99_features,
2234                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2235                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2236         },
2237         {       "PowerBook3,2",                 "PowerBook Titanium",
2238                 PMAC_TYPE_TITANIUM,             core99_features,
2239                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2240         },
2241         {       "PowerBook3,3",                 "PowerBook Titanium II",
2242                 PMAC_TYPE_TITANIUM2,            core99_features,
2243                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2244         },
2245         {       "PowerBook3,4",                 "PowerBook Titanium III",
2246                 PMAC_TYPE_TITANIUM3,            core99_features,
2247                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2248         },
2249         {       "PowerBook3,5",                 "PowerBook Titanium IV",
2250                 PMAC_TYPE_TITANIUM4,            core99_features,
2251                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2252         },
2253         {       "PowerBook4,1",                 "iBook 2",
2254                 PMAC_TYPE_IBOOK2,               pangea_features,
2255                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2256         },
2257         {       "PowerBook4,2",                 "iBook 2",
2258                 PMAC_TYPE_IBOOK2,               pangea_features,
2259                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2260         },
2261         {       "PowerBook4,3",                 "iBook 2 rev. 2",
2262                 PMAC_TYPE_IBOOK2,               pangea_features,
2263                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2264         },
2265         {       "PowerBook5,1",                 "PowerBook G4 17\"",
2266                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2267                 PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2268         },
2269         {       "PowerBook5,2",                 "PowerBook G4 15\"",
2270                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2271                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2272         },
2273         {       "PowerBook5,3",                 "PowerBook G4 17\"",
2274                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2275                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2276         },
2277         {       "PowerBook5,4",                 "PowerBook G4 15\"",
2278                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2279                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2280         },
2281         {       "PowerBook5,5",                 "PowerBook G4 17\"",
2282                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2283                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2284         },
2285         {       "PowerBook5,6",                 "PowerBook G4 15\"",
2286                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2287                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2288         },
2289         {       "PowerBook5,7",                 "PowerBook G4 17\"",
2290                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2291                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2292         },
2293         {       "PowerBook5,8",                 "PowerBook G4 15\"",
2294                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2295                 PMAC_MB_MAY_SLEEP  | PMAC_MB_MOBILE,
2296         },
2297         {       "PowerBook5,9",                 "PowerBook G4 17\"",
2298                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2299                 PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
2300         },
2301         {       "PowerBook6,1",                 "PowerBook G4 12\"",
2302                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2303                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2304         },
2305         {       "PowerBook6,2",                 "PowerBook G4",
2306                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2307                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2308         },
2309         {       "PowerBook6,3",                 "iBook G4",
2310                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2311                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2312         },
2313         {       "PowerBook6,4",                 "PowerBook G4 12\"",
2314                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2315                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2316         },
2317         {       "PowerBook6,5",                 "iBook G4",
2318                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2319                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2320         },
2321         {       "PowerBook6,7",                 "iBook G4",
2322                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2323                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2324         },
2325         {       "PowerBook6,8",                 "PowerBook G4 12\"",
2326                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2327                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2328         },
2329 #else /* CONFIG_POWER4 */
2330         {       "PowerMac7,2",                  "PowerMac G5",
2331                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2332                 0,
2333         },
2334 #ifdef CONFIG_PPC64
2335         {       "PowerMac7,3",                  "PowerMac G5",
2336                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2337                 0,
2338         },
2339         {       "PowerMac8,1",                  "iMac G5",
2340                 PMAC_TYPE_IMAC_G5,              g5_features,
2341                 0,
2342         },
2343         {       "PowerMac9,1",                  "PowerMac G5",
2344                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2345                 0,
2346         },
2347         {       "PowerMac11,2",                 "PowerMac G5 Dual Core",
2348                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2349                 0,
2350         },
2351         {       "PowerMac12,1",                 "iMac G5 (iSight)",
2352                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2353                 0,
2354         },
2355         {       "RackMac3,1",                   "XServe G5",
2356                 PMAC_TYPE_XSERVE_G5,            g5_features,
2357                 0,
2358         },
2359 #endif /* CONFIG_PPC64 */
2360 #endif /* CONFIG_POWER4 */
2361 };
2362
2363 /*
2364  * The toplevel feature_call callback
2365  */
2366 long pmac_do_feature_call(unsigned int selector, ...)
2367 {
2368         struct device_node *node;
2369         long param, value;
2370         int i;
2371         feature_call func = NULL;
2372         va_list args;
2373
2374         if (pmac_mb.features)
2375                 for (i=0; pmac_mb.features[i].function; i++)
2376                         if (pmac_mb.features[i].selector == selector) {
2377                                 func = pmac_mb.features[i].function;
2378                                 break;
2379                         }
2380         if (!func)
2381                 for (i=0; any_features[i].function; i++)
2382                         if (any_features[i].selector == selector) {
2383                                 func = any_features[i].function;
2384                                 break;
2385                         }
2386         if (!func)
2387                 return -ENODEV;
2388
2389         va_start(args, selector);
2390         node = (struct device_node*)va_arg(args, void*);
2391         param = va_arg(args, long);
2392         value = va_arg(args, long);
2393         va_end(args);
2394
2395         return func(node, param, value);
2396 }
2397
2398 static int __init probe_motherboard(void)
2399 {
2400         int i;
2401         struct macio_chip *macio = &macio_chips[0];
2402         const char *model = NULL;
2403         struct device_node *dt;
2404
2405         /* Lookup known motherboard type in device-tree. First try an
2406          * exact match on the "model" property, then try a "compatible"
2407          * match is none is found.
2408          */
2409         dt = find_devices("device-tree");
2410         if (dt != NULL)
2411                 model = get_property(dt, "model", NULL);
2412         for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2413             if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2414                 pmac_mb = pmac_mb_defs[i];
2415                 goto found;
2416             }
2417         }
2418         for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2419             if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
2420                 pmac_mb = pmac_mb_defs[i];
2421                 goto found;
2422             }
2423         }
2424
2425         /* Fallback to selection depending on mac-io chip type */
2426         switch(macio->type) {
2427 #ifndef CONFIG_POWER4
2428             case macio_grand_central:
2429                 pmac_mb.model_id = PMAC_TYPE_PSURGE;
2430                 pmac_mb.model_name = "Unknown PowerSurge";
2431                 break;
2432             case macio_ohare:
2433                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2434                 pmac_mb.model_name = "Unknown OHare-based";
2435                 break;
2436             case macio_heathrow:
2437                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2438                 pmac_mb.model_name = "Unknown Heathrow-based";
2439                 pmac_mb.features = heathrow_desktop_features;
2440                 break;
2441             case macio_paddington:
2442                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2443                 pmac_mb.model_name = "Unknown Paddington-based";
2444                 pmac_mb.features = paddington_features;
2445                 break;
2446             case macio_keylargo:
2447                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2448                 pmac_mb.model_name = "Unknown Keylargo-based";
2449                 pmac_mb.features = core99_features;
2450                 break;
2451             case macio_pangea:
2452                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2453                 pmac_mb.model_name = "Unknown Pangea-based";
2454                 pmac_mb.features = pangea_features;
2455                 break;
2456             case macio_intrepid:
2457                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2458                 pmac_mb.model_name = "Unknown Intrepid-based";
2459                 pmac_mb.features = intrepid_features;
2460                 break;
2461 #else /* CONFIG_POWER4 */
2462         case macio_keylargo2:
2463                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2464                 pmac_mb.model_name = "Unknown K2-based";
2465                 pmac_mb.features = g5_features;
2466                 break;
2467         case macio_shasta:
2468                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
2469                 pmac_mb.model_name = "Unknown Shasta-based";
2470                 pmac_mb.features = g5_features;
2471                 break;
2472 #endif /* CONFIG_POWER4 */
2473         default:
2474                 return -ENODEV;
2475         }
2476 found:
2477 #ifndef CONFIG_POWER4
2478         /* Fixup Hooper vs. Comet */
2479         if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2480                 u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2481                 if (!mach_id_ptr)
2482                         return -ENODEV;
2483                 /* Here, I used to disable the media-bay on comet. It
2484                  * appears this is wrong, the floppy connector is actually
2485                  * a kind of media-bay and works with the current driver.
2486                  */
2487                 if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2488                         pmac_mb.model_id = PMAC_TYPE_COMET;
2489                 iounmap(mach_id_ptr);
2490         }
2491
2492         /* Set default value of powersave_nap on machines that support it.
2493          * It appears that uninorth rev 3 has a problem with it, we don't
2494          * enable it on those. In theory, the flush-on-lock property is
2495          * supposed to be set when not supported, but I'm not very confident
2496          * that all Apple OF revs did it properly, I do it the paranoid way.
2497          */
2498         while (uninorth_base && uninorth_rev > 3) {
2499                 struct device_node *np = find_path_device("/cpus");
2500                 if (!np || !np->child) {
2501                         printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
2502                         break;
2503                 }
2504                 np = np->child;
2505                 /* Nap mode not supported on SMP */
2506                 if (np->sibling)
2507                         break;
2508                 /* Nap mode not supported if flush-on-lock property is present */
2509                 if (get_property(np, "flush-on-lock", NULL))
2510                         break;
2511                 powersave_nap = 1;
2512                 printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
2513                 break;
2514         }
2515
2516         /* On CPUs that support it (750FX), lowspeed by default during
2517          * NAP mode
2518          */
2519         powersave_lowspeed = 1;
2520
2521 #else /* CONFIG_POWER4 */
2522         powersave_nap = 1;
2523 #endif  /* CONFIG_POWER4 */
2524
2525         /* Check for "mobile" machine */
2526         if (model && (strncmp(model, "PowerBook", 9) == 0
2527                    || strncmp(model, "iBook", 5) == 0))
2528                 pmac_mb.board_flags |= PMAC_MB_MOBILE;
2529
2530
2531         printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2532         return 0;
2533 }
2534
2535 /* Initialize the Core99 UniNorth host bridge and memory controller
2536  */
2537 static void __init probe_uninorth(void)
2538 {
2539         const u32 *addrp;
2540         phys_addr_t address;
2541         unsigned long actrl;
2542
2543         /* Locate core99 Uni-N */
2544         uninorth_node = of_find_node_by_name(NULL, "uni-n");
2545         /* Locate G5 u3 */
2546         if (uninorth_node == NULL) {
2547                 uninorth_node = of_find_node_by_name(NULL, "u3");
2548                 uninorth_maj = 3;
2549         }
2550         /* Locate G5 u4 */
2551         if (uninorth_node == NULL) {
2552                 uninorth_node = of_find_node_by_name(NULL, "u4");
2553                 uninorth_maj = 4;
2554         }
2555         if (uninorth_node == NULL)
2556                 return;
2557
2558         addrp = get_property(uninorth_node, "reg", NULL);
2559         if (addrp == NULL)
2560                 return;
2561         address = of_translate_address(uninorth_node, addrp);
2562         if (address == 0)
2563                 return;
2564         uninorth_base = ioremap(address, 0x40000);
2565         uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2566         if (uninorth_maj == 3 || uninorth_maj == 4)
2567                 u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2568
2569         printk(KERN_INFO "Found %s memory controller & host bridge"
2570                " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
2571                uninorth_maj == 4 ? "U4" : "UniNorth",
2572                (unsigned int)address, uninorth_rev);
2573         printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2574
2575         /* Set the arbitrer QAck delay according to what Apple does
2576          */
2577         if (uninorth_rev < 0x11) {
2578                 actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2579                 actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2580                         UNI_N_ARB_CTRL_QACK_DELAY) <<
2581                         UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2582                 UN_OUT(UNI_N_ARB_CTRL, actrl);
2583         }
2584
2585         /* Some more magic as done by them in recent MacOS X on UniNorth
2586          * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2587          * memory timeout
2588          */
2589         if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
2590             uninorth_rev == 0xc0)
2591                 UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2592 }
2593
2594 static void __init probe_one_macio(const char *name, const char *compat, int type)
2595 {
2596         struct device_node*     node;
2597         int                     i;
2598         volatile u32 __iomem    *base;
2599         const u32               *addrp, *revp;
2600         phys_addr_t             addr;
2601         u64                     size;
2602
2603         for (node = NULL; (node = of_find_node_by_name(node, name)) != NULL;) {
2604                 if (!compat)
2605                         break;
2606                 if (device_is_compatible(node, compat))
2607                         break;
2608         }
2609         if (!node)
2610                 return;
2611         for(i=0; i<MAX_MACIO_CHIPS; i++) {
2612                 if (!macio_chips[i].of_node)
2613                         break;
2614                 if (macio_chips[i].of_node == node)
2615                         return;
2616         }
2617
2618         if (i >= MAX_MACIO_CHIPS) {
2619                 printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2620                 printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
2621                 return;
2622         }
2623         addrp = of_get_pci_address(node, 0, &size, NULL);
2624         if (addrp == NULL) {
2625                 printk(KERN_ERR "pmac_feature: %s: can't find base !\n",
2626                        node->full_name);
2627                 return;
2628         }
2629         addr = of_translate_address(node, addrp);
2630         if (addr == 0) {
2631                 printk(KERN_ERR "pmac_feature: %s, can't translate base !\n",
2632                        node->full_name);
2633                 return;
2634         }
2635         base = ioremap(addr, (unsigned long)size);
2636         if (!base) {
2637                 printk(KERN_ERR "pmac_feature: %s, can't map mac-io chip !\n",
2638                        node->full_name);
2639                 return;
2640         }
2641         if (type == macio_keylargo || type == macio_keylargo2) {
2642                 const u32 *did = get_property(node, "device-id", NULL);
2643                 if (*did == 0x00000025)
2644                         type = macio_pangea;
2645                 if (*did == 0x0000003e)
2646                         type = macio_intrepid;
2647                 if (*did == 0x0000004f)
2648                         type = macio_shasta;
2649         }
2650         macio_chips[i].of_node  = node;
2651         macio_chips[i].type     = type;
2652         macio_chips[i].base     = base;
2653         macio_chips[i].flags    = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
2654         macio_chips[i].name     = macio_names[type];
2655         revp = get_property(node, "revision-id", NULL);
2656         if (revp)
2657                 macio_chips[i].rev = *revp;
2658         printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2659                 macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2660 }
2661
2662 static int __init
2663 probe_macios(void)
2664 {
2665         /* Warning, ordering is important */
2666         probe_one_macio("gc", NULL, macio_grand_central);
2667         probe_one_macio("ohare", NULL, macio_ohare);
2668         probe_one_macio("pci106b,7", NULL, macio_ohareII);
2669         probe_one_macio("mac-io", "keylargo", macio_keylargo);
2670         probe_one_macio("mac-io", "paddington", macio_paddington);
2671         probe_one_macio("mac-io", "gatwick", macio_gatwick);
2672         probe_one_macio("mac-io", "heathrow", macio_heathrow);
2673         probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2674
2675         /* Make sure the "main" macio chip appear first */
2676         if (macio_chips[0].type == macio_gatwick
2677             && macio_chips[1].type == macio_heathrow) {
2678                 struct macio_chip temp = macio_chips[0];
2679                 macio_chips[0] = macio_chips[1];
2680                 macio_chips[1] = temp;
2681         }
2682         if (macio_chips[0].type == macio_ohareII
2683             && macio_chips[1].type == macio_ohare) {
2684                 struct macio_chip temp = macio_chips[0];
2685                 macio_chips[0] = macio_chips[1];
2686                 macio_chips[1] = temp;
2687         }
2688         macio_chips[0].lbus.index = 0;
2689         macio_chips[1].lbus.index = 1;
2690
2691         return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2692 }
2693
2694 static void __init
2695 initial_serial_shutdown(struct device_node *np)
2696 {
2697         int len;
2698         const struct slot_names_prop {
2699                 int     count;
2700                 char    name[1];
2701         } *slots;
2702         const char *conn;
2703         int port_type = PMAC_SCC_ASYNC;
2704         int modem = 0;
2705
2706         slots = get_property(np, "slot-names", &len);
2707         conn = get_property(np, "AAPL,connector", &len);
2708         if (conn && (strcmp(conn, "infrared") == 0))
2709                 port_type = PMAC_SCC_IRDA;
2710         else if (device_is_compatible(np, "cobalt"))
2711                 modem = 1;
2712         else if (slots && slots->count > 0) {
2713                 if (strcmp(slots->name, "IrDA") == 0)
2714                         port_type = PMAC_SCC_IRDA;
2715                 else if (strcmp(slots->name, "Modem") == 0)
2716                         modem = 1;
2717         }
2718         if (modem)
2719                 pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2720         pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2721 }
2722
2723 static void __init
2724 set_initial_features(void)
2725 {
2726         struct device_node *np;
2727
2728         /* That hack appears to be necessary for some StarMax motherboards
2729          * but I'm not too sure it was audited for side-effects on other
2730          * ohare based machines...
2731          * Since I still have difficulties figuring the right way to
2732          * differenciate them all and since that hack was there for a long
2733          * time, I'll keep it around
2734          */
2735         if (macio_chips[0].type == macio_ohare && !find_devices("via-pmu")) {
2736                 struct macio_chip *macio = &macio_chips[0];
2737                 MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2738         } else if (macio_chips[0].type == macio_ohare) {
2739                 struct macio_chip *macio = &macio_chips[0];
2740                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2741         } else if (macio_chips[1].type == macio_ohare) {
2742                 struct macio_chip *macio = &macio_chips[1];
2743                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2744         }
2745
2746 #ifdef CONFIG_POWER4
2747         if (macio_chips[0].type == macio_keylargo2 ||
2748             macio_chips[0].type == macio_shasta) {
2749 #ifndef CONFIG_SMP
2750                 /* On SMP machines running UP, we have the second CPU eating
2751                  * bus cycles. We need to take it off the bus. This is done
2752                  * from pmac_smp for SMP kernels running on one CPU
2753                  */
2754                 np = of_find_node_by_type(NULL, "cpu");
2755                 if (np != NULL)
2756                         np = of_find_node_by_type(np, "cpu");
2757                 if (np != NULL) {
2758                         g5_phy_disable_cpu1();
2759                         of_node_put(np);
2760                 }
2761 #endif /* CONFIG_SMP */
2762                 /* Enable GMAC for now for PCI probing. It will be disabled
2763                  * later on after PCI probe
2764                  */
2765                 np = of_find_node_by_name(NULL, "ethernet");
2766                 while(np) {
2767                         if (device_is_compatible(np, "K2-GMAC"))
2768                                 g5_gmac_enable(np, 0, 1);
2769                         np = of_find_node_by_name(np, "ethernet");
2770                 }
2771
2772                 /* Enable FW before PCI probe. Will be disabled later on
2773                  * Note: We should have a batter way to check that we are
2774                  * dealing with uninorth internal cell and not a PCI cell
2775                  * on the external PCI. The code below works though.
2776                  */
2777                 np = of_find_node_by_name(NULL, "firewire");
2778                 while(np) {
2779                         if (device_is_compatible(np, "pci106b,5811")) {
2780                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2781                                 g5_fw_enable(np, 0, 1);
2782                         }
2783                         np = of_find_node_by_name(np, "firewire");
2784                 }
2785         }
2786 #else /* CONFIG_POWER4 */
2787
2788         if (macio_chips[0].type == macio_keylargo ||
2789             macio_chips[0].type == macio_pangea ||
2790             macio_chips[0].type == macio_intrepid) {
2791                 /* Enable GMAC for now for PCI probing. It will be disabled
2792                  * later on after PCI probe
2793                  */
2794                 np = of_find_node_by_name(NULL, "ethernet");
2795                 while(np) {
2796                         if (np->parent
2797                             && device_is_compatible(np->parent, "uni-north")
2798                             && device_is_compatible(np, "gmac"))
2799                                 core99_gmac_enable(np, 0, 1);
2800                         np = of_find_node_by_name(np, "ethernet");
2801                 }
2802
2803                 /* Enable FW before PCI probe. Will be disabled later on
2804                  * Note: We should have a batter way to check that we are
2805                  * dealing with uninorth internal cell and not a PCI cell
2806                  * on the external PCI. The code below works though.
2807                  */
2808                 np = of_find_node_by_name(NULL, "firewire");
2809                 while(np) {
2810                         if (np->parent
2811                             && device_is_compatible(np->parent, "uni-north")
2812                             && (device_is_compatible(np, "pci106b,18") ||
2813                                 device_is_compatible(np, "pci106b,30") ||
2814                                 device_is_compatible(np, "pci11c1,5811"))) {
2815                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2816                                 core99_firewire_enable(np, 0, 1);
2817                         }
2818                         np = of_find_node_by_name(np, "firewire");
2819                 }
2820
2821                 /* Enable ATA-100 before PCI probe. */
2822                 np = of_find_node_by_name(NULL, "ata-6");
2823                 while(np) {
2824                         if (np->parent
2825                             && device_is_compatible(np->parent, "uni-north")
2826                             && device_is_compatible(np, "kauai-ata")) {
2827                                 core99_ata100_enable(np, 1);
2828                         }
2829                         np = of_find_node_by_name(np, "ata-6");
2830                 }
2831
2832                 /* Switch airport off */
2833                 np = find_devices("radio");
2834                 while(np) {
2835                         if (np && np->parent == macio_chips[0].of_node) {
2836                                 macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2837                                 core99_airport_enable(np, 0, 0);
2838                         }
2839                         np = np->next;
2840                 }
2841         }
2842
2843         /* On all machines that support sound PM, switch sound off */
2844         if (macio_chips[0].of_node)
2845                 pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2846                         macio_chips[0].of_node, 0, 0);
2847
2848         /* While on some desktop G3s, we turn it back on */
2849         if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2850                 && (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2851                     pmac_mb.model_id == PMAC_TYPE_SILK)) {
2852                 struct macio_chip *macio = &macio_chips[0];
2853                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2854                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2855         }
2856
2857 #endif /* CONFIG_POWER4 */
2858
2859         /* On all machines, switch modem & serial ports off */
2860         np = find_devices("ch-a");
2861         while(np) {
2862                 initial_serial_shutdown(np);
2863                 np = np->next;
2864         }
2865         np = find_devices("ch-b");
2866         while(np) {
2867                 initial_serial_shutdown(np);
2868                 np = np->next;
2869         }
2870 }
2871
2872 void __init
2873 pmac_feature_init(void)
2874 {
2875         /* Detect the UniNorth memory controller */
2876         probe_uninorth();
2877
2878         /* Probe mac-io controllers */
2879         if (probe_macios()) {
2880                 printk(KERN_WARNING "No mac-io chip found\n");
2881                 return;
2882         }
2883
2884         /* Probe machine type */
2885         if (probe_motherboard())
2886                 printk(KERN_WARNING "Unknown PowerMac !\n");
2887
2888         /* Set some initial features (turn off some chips that will
2889          * be later turned on)
2890          */
2891         set_initial_features();
2892 }
2893
2894 #if 0
2895 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2896 {
2897         int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2898         int     bits[8] = { 8,16,0,32,2,4,0,0 };
2899         int     freq = (frq >> 8) & 0xf;
2900
2901         if (freqs[freq] == 0)
2902                 printk("%s: Unknown HT link frequency %x\n", name, freq);
2903         else
2904                 printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2905                        name, freqs[freq],
2906                        bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2907 }
2908
2909 void __init pmac_check_ht_link(void)
2910 {
2911         u32     ufreq, freq, ucfg, cfg;
2912         struct device_node *pcix_node;
2913         u8      px_bus, px_devfn;
2914         struct pci_controller *px_hose;
2915
2916         (void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
2917         ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
2918         ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
2919         dump_HT_speeds("U3 HyperTransport", cfg, freq);
2920
2921         pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2922         if (pcix_node == NULL) {
2923                 printk("No PCI-X bridge found\n");
2924                 return;
2925         }
2926         if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2927                 printk("PCI-X bridge found but not matched to pci\n");
2928                 return;
2929         }
2930         px_hose = pci_find_hose_for_OF_device(pcix_node);
2931         if (px_hose == NULL) {
2932                 printk("PCI-X bridge found but not matched to host\n");
2933                 return;
2934         }
2935         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2936         early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2937         dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2938         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2939         early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2940         dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2941 }
2942 #endif /* 0 */
2943
2944 /*
2945  * Early video resume hook
2946  */
2947
2948 static void (*pmac_early_vresume_proc)(void *data);
2949 static void *pmac_early_vresume_data;
2950
2951 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
2952 {
2953         if (!machine_is(powermac))
2954                 return;
2955         preempt_disable();
2956         pmac_early_vresume_proc = proc;
2957         pmac_early_vresume_data = data;
2958         preempt_enable();
2959 }
2960 EXPORT_SYMBOL(pmac_set_early_video_resume);
2961
2962 void pmac_call_early_video_resume(void)
2963 {
2964         if (pmac_early_vresume_proc)
2965                 pmac_early_vresume_proc(pmac_early_vresume_data);
2966 }
2967
2968 /*
2969  * AGP related suspend/resume code
2970  */
2971
2972 static struct pci_dev *pmac_agp_bridge;
2973 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
2974 static int (*pmac_agp_resume)(struct pci_dev *bridge);
2975
2976 void pmac_register_agp_pm(struct pci_dev *bridge,
2977                                  int (*suspend)(struct pci_dev *bridge),
2978                                  int (*resume)(struct pci_dev *bridge))
2979 {
2980         if (suspend || resume) {
2981                 pmac_agp_bridge = bridge;
2982                 pmac_agp_suspend = suspend;
2983                 pmac_agp_resume = resume;
2984                 return;
2985         }
2986         if (bridge != pmac_agp_bridge)
2987                 return;
2988         pmac_agp_suspend = pmac_agp_resume = NULL;
2989         return;
2990 }
2991 EXPORT_SYMBOL(pmac_register_agp_pm);
2992
2993 void pmac_suspend_agp_for_card(struct pci_dev *dev)
2994 {
2995         if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
2996                 return;
2997         if (pmac_agp_bridge->bus != dev->bus)
2998                 return;
2999         pmac_agp_suspend(pmac_agp_bridge);
3000 }
3001 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3002
3003 void pmac_resume_agp_for_card(struct pci_dev *dev)
3004 {
3005         if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3006                 return;
3007         if (pmac_agp_bridge->bus != dev->bus)
3008                 return;
3009         pmac_agp_resume(pmac_agp_bridge);
3010 }
3011 EXPORT_SYMBOL(pmac_resume_agp_for_card);