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 struct dbdma_regs save_dbdma[13];
 490 static struct dbdma_regs save_alt_dbdma[13];
 491
 492 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
 493 {
 494         int i;
 495
 496         /* Save state & config of DBDMA channels */
 497         for (i = 0; i < 13; i++) {
 498                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
 499                         (macio->base + ((0x8000+i*0x100)>>2));
 500                 save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
 501                 save[i].cmdptr = in_le32(&chan->cmdptr);
 502                 save[i].intr_sel = in_le32(&chan->intr_sel);
 503                 save[i].br_sel = in_le32(&chan->br_sel);
 504                 save[i].wait_sel = in_le32(&chan->wait_sel);
 505         }
 506 }
 507
 508 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
 509 {
 510         int i;
 511
 512         /* Save state & config of DBDMA channels */
 513         for (i = 0; i < 13; i++) {
 514                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
 515                         (macio->base + ((0x8000+i*0x100)>>2));
 516                 out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
 517                 while (in_le32(&chan->status) & ACTIVE)
 518                         mb();
 519                 out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
 520                 out_le32(&chan->cmdptr, save[i].cmdptr);
 521                 out_le32(&chan->intr_sel, save[i].intr_sel);
 522                 out_le32(&chan->br_sel, save[i].br_sel);
 523                 out_le32(&chan->wait_sel, save[i].wait_sel);
 524         }
 525 }
 526
 527 static void heathrow_sleep(struct macio_chip *macio, int secondary)
 528 {
 529         if (secondary) {
 530                 dbdma_save(macio, save_alt_dbdma);
 531                 save_fcr[2] = MACIO_IN32(0x38);
 532                 save_fcr[3] = MACIO_IN32(0x3c);
 533         } else {
 534                 dbdma_save(macio, save_dbdma);
 535                 save_fcr[0] = MACIO_IN32(0x38);
 536                 save_fcr[1] = MACIO_IN32(0x3c);
 537                 save_mbcr = MACIO_IN32(0x34);
 538                 /* Make sure sound is shut down */
 539                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
 540                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 541                 /* This seems to be necessary as well or the fan
 542                  * keeps coming up and battery drains fast */
 543                 MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
 544                 MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
 545                 /* Make sure eth is down even if module or sleep
 546                  * won't work properly */
 547                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
 548         }
 549         /* Make sure modem is shut down */
 550         MACIO_OUT8(HRW_GPIO_MODEM_RESET,
 551                 MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
 552         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 553         MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
 554
 555         /* Let things settle */
 556         (void)MACIO_IN32(HEATHROW_FCR);
 557 }
 558
 559 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
 560 {
 561         if (secondary) {
 562                 MACIO_OUT32(0x38, save_fcr[2]);
 563                 (void)MACIO_IN32(0x38);
 564                 mdelay(1);
 565                 MACIO_OUT32(0x3c, save_fcr[3]);
 566                 (void)MACIO_IN32(0x38);
 567                 mdelay(10);
 568                 dbdma_restore(macio, save_alt_dbdma);
 569         } else {
 570                 MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
 571                 (void)MACIO_IN32(0x38);
 572                 mdelay(1);
 573                 MACIO_OUT32(0x3c, save_fcr[1]);
 574                 (void)MACIO_IN32(0x38);
 575                 mdelay(1);
 576                 MACIO_OUT32(0x34, save_mbcr);
 577                 (void)MACIO_IN32(0x38);
 578                 mdelay(10);
 579                 dbdma_restore(macio, save_dbdma);
 580         }
 581 }
 582
 583 static long heathrow_sleep_state(struct device_node *node, long param,
 584                                  long value)
 585 {
 586         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
 587                 return -EPERM;
 588         if (value == 1) {
 589                 if (macio_chips[1].type == macio_gatwick)
 590                         heathrow_sleep(&macio_chips[0], 1);
 591                 heathrow_sleep(&macio_chips[0], 0);
 592         } else if (value == 0) {
 593                 heathrow_wakeup(&macio_chips[0], 0);
 594                 if (macio_chips[1].type == macio_gatwick)
 595                         heathrow_wakeup(&macio_chips[0], 1);
 596         }
 597         return 0;
 598 }
 599
 600 static long core99_scc_enable(struct device_node *node, long param, long value)
 601 {
 602         struct macio_chip*      macio;
 603         unsigned long           flags;
 604         unsigned long           chan_mask;
 605         u32                     fcr;
 606
 607         macio = macio_find(node, 0);
 608         if (!macio)
 609                 return -ENODEV;
 610         if (!strcmp(node->name, "ch-a"))
 611                 chan_mask = MACIO_FLAG_SCCA_ON;
 612         else if (!strcmp(node->name, "ch-b"))
 613                 chan_mask = MACIO_FLAG_SCCB_ON;
 614         else
 615                 return -ENODEV;
 616
 617         if (value) {
 618                 int need_reset_scc = 0;
 619                 int need_reset_irda = 0;
 620
 621                 LOCK(flags);
 622                 fcr = MACIO_IN32(KEYLARGO_FCR0);
 623                 /* Check if scc cell need enabling */
 624                 if (!(fcr & KL0_SCC_CELL_ENABLE)) {
 625                         fcr |= KL0_SCC_CELL_ENABLE;
 626                         need_reset_scc = 1;
 627                 }
 628                 if (chan_mask & MACIO_FLAG_SCCA_ON) {
 629                         fcr |= KL0_SCCA_ENABLE;
 630                         /* Don't enable line drivers for I2S modem */
 631                         if ((param & 0xfff) == PMAC_SCC_I2S1)
 632                                 fcr &= ~KL0_SCC_A_INTF_ENABLE;
 633                         else
 634                                 fcr |= KL0_SCC_A_INTF_ENABLE;
 635                 }
 636                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
 637                         fcr |= KL0_SCCB_ENABLE;
 638                         /* Perform irda specific inits */
 639                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
 640                                 fcr &= ~KL0_SCC_B_INTF_ENABLE;
 641                                 fcr |= KL0_IRDA_ENABLE;
 642                                 fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
 643                                 fcr |= KL0_IRDA_SOURCE1_SEL;
 644                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
 645                                 fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
 646                                 need_reset_irda = 1;
 647                         } else
 648                                 fcr |= KL0_SCC_B_INTF_ENABLE;
 649                 }
 650                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
 651                 macio->flags |= chan_mask;
 652                 if (need_reset_scc)  {
 653                         MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
 654                         (void)MACIO_IN32(KEYLARGO_FCR0);
 655                         UNLOCK(flags);
 656                         mdelay(15);
 657                         LOCK(flags);
 658                         MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
 659                 }
 660                 if (need_reset_irda)  {
 661                         MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
 662                         (void)MACIO_IN32(KEYLARGO_FCR0);
 663                         UNLOCK(flags);
 664                         mdelay(15);
 665                         LOCK(flags);
 666                         MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
 667                 }
 668                 UNLOCK(flags);
 669                 if (param & PMAC_SCC_FLAG_XMON)
 670                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
 671         } else {
 672                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
 673                         return -EPERM;
 674                 LOCK(flags);
 675                 fcr = MACIO_IN32(KEYLARGO_FCR0);
 676                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 677                         fcr &= ~KL0_SCCA_ENABLE;
 678                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
 679                         fcr &= ~KL0_SCCB_ENABLE;
 680                         /* Perform irda specific clears */
 681                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
 682                                 fcr &= ~KL0_IRDA_ENABLE;
 683                                 fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
 684                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
 685                                 fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
 686                         }
 687                 }
 688                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
 689                 if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
 690                         fcr &= ~KL0_SCC_CELL_ENABLE;
 691                         MACIO_OUT32(KEYLARGO_FCR0, fcr);
 692                 }
 693                 macio->flags &= ~(chan_mask);
 694                 UNLOCK(flags);
 695                 mdelay(10);
 696         }
 697         return 0;
 698 }
 699
 700 static long
 701 core99_modem_enable(struct device_node *node, long param, long value)
 702 {
 703         struct macio_chip*      macio;
 704         u8                      gpio;
 705         unsigned long           flags;
 706
 707         /* Hack for internal USB modem */
 708         if (node == NULL) {
 709                 if (macio_chips[0].type != macio_keylargo)
 710                         return -ENODEV;
 711                 node = macio_chips[0].of_node;
 712         }
 713         macio = macio_find(node, 0);
 714         if (!macio)
 715                 return -ENODEV;
 716         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
 717         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
 718         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
 719
 720         if (!value) {
 721                 LOCK(flags);
 722                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 723                 UNLOCK(flags);
 724                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 725                 mdelay(250);
 726         }
 727         LOCK(flags);
 728         if (value) {
 729                 MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
 730                 UNLOCK(flags);
 731                 (void)MACIO_IN32(KEYLARGO_FCR2);
 732                 mdelay(250);
 733         } else {
 734                 MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
 735                 UNLOCK(flags);
 736         }
 737         if (value) {
 738                 LOCK(flags);
 739                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 740                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 741                 UNLOCK(flags); mdelay(250); LOCK(flags);
 742                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 743                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 744                 UNLOCK(flags); mdelay(250); LOCK(flags);
 745                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 746                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 747                 UNLOCK(flags); mdelay(250);
 748         }
 749         return 0;
 750 }
 751
 752 static long
 753 pangea_modem_enable(struct device_node *node, long param, long value)
 754 {
 755         struct macio_chip*      macio;
 756         u8                      gpio;
 757         unsigned long           flags;
 758
 759         /* Hack for internal USB modem */
 760         if (node == NULL) {
 761                 if (macio_chips[0].type != macio_pangea &&
 762                     macio_chips[0].type != macio_intrepid)
 763                         return -ENODEV;
 764                 node = macio_chips[0].of_node;
 765         }
 766         macio = macio_find(node, 0);
 767         if (!macio)
 768                 return -ENODEV;
 769         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
 770         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
 771         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
 772
 773         if (!value) {
 774                 LOCK(flags);
 775                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 776                 UNLOCK(flags);
 777                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 778                 mdelay(250);
 779         }
 780         LOCK(flags);
 781         if (value) {
 782                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
 783                         KEYLARGO_GPIO_OUTPUT_ENABLE);
 784                 UNLOCK(flags);
 785                 (void)MACIO_IN32(KEYLARGO_FCR2);
 786                 mdelay(250);
 787         } else {
 788                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
 789                         KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
 790                 UNLOCK(flags);
 791         }
 792         if (value) {
 793                 LOCK(flags);
 794                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 795                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 796                 UNLOCK(flags); mdelay(250); LOCK(flags);
 797                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 798                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 799                 UNLOCK(flags); mdelay(250); LOCK(flags);
 800                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 801                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 802                 UNLOCK(flags); mdelay(250);
 803         }
 804         return 0;
 805 }
 806
 807 static long
 808 core99_ata100_enable(struct device_node *node, long value)
 809 {
 810         unsigned long flags;
 811         struct pci_dev *pdev = NULL;
 812         u8 pbus, pid;
 813         int rc;
 814
 815         if (uninorth_rev < 0x24)
 816                 return -ENODEV;
 817
 818         LOCK(flags);
 819         if (value)
 820                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
 821         else
 822                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
 823         (void)UN_IN(UNI_N_CLOCK_CNTL);
 824         UNLOCK(flags);
 825         udelay(20);
 826
 827         if (value) {
 828                 if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
 829                         pdev = pci_find_slot(pbus, pid);
 830                 if (pdev == NULL)
 831                         return 0;
 832                 rc = pci_enable_device(pdev);
 833                 if (rc)
 834                         return rc;
 835                 pci_set_master(pdev);
 836         }
 837         return 0;
 838 }
 839
 840 static long
 841 core99_ide_enable(struct device_node *node, long param, long value)
 842 {
 843         /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
 844          * based ata-100
 845          */
 846         switch(param) {
 847             case 0:
 848                 return simple_feature_tweak(node, macio_unknown,
 849                         KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
 850             case 1:
 851                 return simple_feature_tweak(node, macio_unknown,
 852                         KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
 853             case 2:
 854                 return simple_feature_tweak(node, macio_unknown,
 855                         KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
 856             case 3:
 857                 return core99_ata100_enable(node, value);
 858             default:
 859                 return -ENODEV;
 860         }
 861 }
 862
 863 static long
 864 core99_ide_reset(struct device_node *node, long param, long value)
 865 {
 866         switch(param) {
 867             case 0:
 868                 return simple_feature_tweak(node, macio_unknown,
 869                         KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
 870             case 1:
 871                 return simple_feature_tweak(node, macio_unknown,
 872                         KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
 873             case 2:
 874                 return simple_feature_tweak(node, macio_unknown,
 875                         KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
 876             default:
 877                 return -ENODEV;
 878         }
 879 }
 880
 881 static long
 882 core99_gmac_enable(struct device_node *node, long param, long value)
 883 {
 884         unsigned long flags;
 885
 886         LOCK(flags);
 887         if (value)
 888                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
 889         else
 890                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
 891         (void)UN_IN(UNI_N_CLOCK_CNTL);
 892         UNLOCK(flags);
 893         udelay(20);
 894
 895         return 0;
 896 }
 897
 898 static long
 899 core99_gmac_phy_reset(struct device_node *node, long param, long value)
 900 {
 901         unsigned long flags;
 902         struct macio_chip *macio;
 903
 904         macio = &macio_chips[0];
 905         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
 906             macio->type != macio_intrepid)
 907                 return -ENODEV;
 908
 909         LOCK(flags);
 910         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
 911         (void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
 912         UNLOCK(flags);
 913         mdelay(10);
 914         LOCK(flags);
 915         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
 916                 KEYLARGO_GPIO_OUTOUT_DATA);
 917         UNLOCK(flags);
 918         mdelay(10);
 919
 920         return 0;
 921 }
 922
 923 static long
 924 core99_sound_chip_enable(struct device_node *node, long param, long value)
 925 {
 926         struct macio_chip*      macio;
 927         unsigned long           flags;
 928
 929         macio = macio_find(node, 0);
 930         if (!macio)
 931                 return -ENODEV;
 932
 933         /* Do a better probe code, screamer G4 desktops &
 934          * iMacs can do that too, add a recalibrate  in
 935          * the driver as well
 936          */
 937         if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
 938             pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
 939                 LOCK(flags);
 940                 if (value)
 941                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
 942                                 KEYLARGO_GPIO_OUTPUT_ENABLE |
 943                                 KEYLARGO_GPIO_OUTOUT_DATA);
 944                 else
 945                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
 946                                 KEYLARGO_GPIO_OUTPUT_ENABLE);
 947                 (void)MACIO_IN8(KL_GPIO_SOUND_POWER);
 948                 UNLOCK(flags);
 949         }
 950         return 0;
 951 }
 952
 953 static long
 954 core99_airport_enable(struct device_node *node, long param, long value)
 955 {
 956         struct macio_chip*      macio;
 957         unsigned long           flags;
 958         int                     state;
 959
 960         macio = macio_find(node, 0);
 961         if (!macio)
 962                 return -ENODEV;
 963
 964         /* Hint: we allow passing of macio itself for the sake of the
 965          * sleep code
 966          */
 967         if (node != macio->of_node &&
 968             (!node->parent || node->parent != macio->of_node))
 969                 return -ENODEV;
 970         state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
 971         if (value == state)
 972                 return 0;
 973         if (value) {
 974                 /* This code is a reproduction of OF enable-cardslot
 975                  * and init-wireless methods, slightly hacked until
 976                  * I got it working.
 977                  */
 978                 LOCK(flags);
 979                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
 980                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
 981                 UNLOCK(flags);
 982                 mdelay(10);
 983                 LOCK(flags);
 984                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
 985                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
 986                 UNLOCK(flags);
 987
 988                 mdelay(10);
 989
 990                 LOCK(flags);
 991                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
 992                 (void)MACIO_IN32(KEYLARGO_FCR2);
 993                 udelay(10);
 994                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
 995                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
 996                 udelay(10);
 997                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
 998                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
 999                 udelay(10);
1000                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1001                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1002                 udelay(10);
1003                 MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1004                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1005                 udelay(10);
1006                 MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1007                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1008                 UNLOCK(flags);
1009                 udelay(10);
1010                 MACIO_OUT32(0x1c000, 0);
1011                 mdelay(1);
1012                 MACIO_OUT8(0x1a3e0, 0x41);
1013                 (void)MACIO_IN8(0x1a3e0);
1014                 udelay(10);
1015                 LOCK(flags);
1016                 MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1017                 (void)MACIO_IN32(KEYLARGO_FCR2);
1018                 UNLOCK(flags);
1019                 mdelay(100);
1020
1021                 macio->flags |= MACIO_FLAG_AIRPORT_ON;
1022         } else {
1023                 LOCK(flags);
1024                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1025                 (void)MACIO_IN32(KEYLARGO_FCR2);
1026                 MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1027                 MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1028                 MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1029                 MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1030                 MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1031                 (void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1032                 UNLOCK(flags);
1033
1034                 macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1035         }
1036         return 0;
1037 }
1038
1039 #ifdef CONFIG_SMP
1040 static long
1041 core99_reset_cpu(struct device_node *node, long param, long value)
1042 {
1043         unsigned int reset_io = 0;
1044         unsigned long flags;
1045         struct macio_chip *macio;
1046         struct device_node *np;
1047         const int dflt_reset_lines[] = {        KL_GPIO_RESET_CPU0,
1048                                                 KL_GPIO_RESET_CPU1,
1049                                                 KL_GPIO_RESET_CPU2,
1050                                                 KL_GPIO_RESET_CPU3 };
1051
1052         macio = &macio_chips[0];
1053         if (macio->type != macio_keylargo)
1054                 return -ENODEV;
1055
1056         np = find_path_device("/cpus");
1057         if (np == NULL)
1058                 return -ENODEV;
1059         for (np = np->child; np != NULL; np = np->sibling) {
1060                 const u32 *num = get_property(np, "reg", NULL);
1061                 const u32 *rst = get_property(np, "soft-reset", NULL);
1062                 if (num == NULL || rst == NULL)
1063                         continue;
1064                 if (param == *num) {
1065                         reset_io = *rst;
1066                         break;
1067                 }
1068         }
1069         if (np == NULL || reset_io == 0)
1070                 reset_io = dflt_reset_lines[param];
1071
1072         LOCK(flags);
1073         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1074         (void)MACIO_IN8(reset_io);
1075         udelay(1);
1076         MACIO_OUT8(reset_io, 0);
1077         (void)MACIO_IN8(reset_io);
1078         UNLOCK(flags);
1079
1080         return 0;
1081 }
1082 #endif /* CONFIG_SMP */
1083
1084 static long
1085 core99_usb_enable(struct device_node *node, long param, long value)
1086 {
1087         struct macio_chip *macio;
1088         unsigned long flags;
1089         const char *prop;
1090         int number;
1091         u32 reg;
1092
1093         macio = &macio_chips[0];
1094         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1095             macio->type != macio_intrepid)
1096                 return -ENODEV;
1097
1098         prop = get_property(node, "AAPL,clock-id", NULL);
1099         if (!prop)
1100                 return -ENODEV;
1101         if (strncmp(prop, "usb0u048", 8) == 0)
1102                 number = 0;
1103         else if (strncmp(prop, "usb1u148", 8) == 0)
1104                 number = 2;
1105         else if (strncmp(prop, "usb2u248", 8) == 0)
1106                 number = 4;
1107         else
1108                 return -ENODEV;
1109
1110         /* Sorry for the brute-force locking, but this is only used during
1111          * sleep and the timing seem to be critical
1112          */
1113         LOCK(flags);
1114         if (value) {
1115                 /* Turn ON */
1116                 if (number == 0) {
1117                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1118                         (void)MACIO_IN32(KEYLARGO_FCR0);
1119                         UNLOCK(flags);
1120                         mdelay(1);
1121                         LOCK(flags);
1122                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1123                 } else if (number == 2) {
1124                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1125                         UNLOCK(flags);
1126                         (void)MACIO_IN32(KEYLARGO_FCR0);
1127                         mdelay(1);
1128                         LOCK(flags);
1129                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1130                 } else if (number == 4) {
1131                         MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1132                         UNLOCK(flags);
1133                         (void)MACIO_IN32(KEYLARGO_FCR1);
1134                         mdelay(1);
1135                         LOCK(flags);
1136                         MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1137                 }
1138                 if (number < 4) {
1139                         reg = MACIO_IN32(KEYLARGO_FCR4);
1140                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1141                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1142                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1143                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1144                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1145                         (void)MACIO_IN32(KEYLARGO_FCR4);
1146                         udelay(10);
1147                 } else {
1148                         reg = MACIO_IN32(KEYLARGO_FCR3);
1149                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1150                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1151                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1152                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1153                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1154                         (void)MACIO_IN32(KEYLARGO_FCR3);
1155                         udelay(10);
1156                 }
1157                 if (macio->type == macio_intrepid) {
1158                         /* wait for clock stopped bits to clear */
1159                         u32 test0 = 0, test1 = 0;
1160                         u32 status0, status1;
1161                         int timeout = 1000;
1162
1163                         UNLOCK(flags);
1164                         switch (number) {
1165                         case 0:
1166                                 test0 = UNI_N_CLOCK_STOPPED_USB0;
1167                                 test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1168                                 break;
1169                         case 2:
1170                                 test0 = UNI_N_CLOCK_STOPPED_USB1;
1171                                 test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1172                                 break;
1173                         case 4:
1174                                 test0 = UNI_N_CLOCK_STOPPED_USB2;
1175                                 test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1176                                 break;
1177                         }
1178                         do {
1179                                 if (--timeout <= 0) {
1180                                         printk(KERN_ERR "core99_usb_enable: "
1181                                                "Timeout waiting for clocks\n");
1182                                         break;
1183                                 }
1184                                 mdelay(1);
1185                                 status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1186                                 status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1187                         } while ((status0 & test0) | (status1 & test1));
1188                         LOCK(flags);
1189                 }
1190         } else {
1191                 /* Turn OFF */
1192                 if (number < 4) {
1193                         reg = MACIO_IN32(KEYLARGO_FCR4);
1194                         reg |=  KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1195                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1196                         reg |=  KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1197                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1198                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1199                         (void)MACIO_IN32(KEYLARGO_FCR4);
1200                         udelay(1);
1201                 } else {
1202                         reg = MACIO_IN32(KEYLARGO_FCR3);
1203                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1204                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1205                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1206                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1207                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1208                         (void)MACIO_IN32(KEYLARGO_FCR3);
1209                         udelay(1);
1210                 }
1211                 if (number == 0) {
1212                         if (macio->type != macio_intrepid)
1213                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1214                         (void)MACIO_IN32(KEYLARGO_FCR0);
1215                         udelay(1);
1216                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1217                         (void)MACIO_IN32(KEYLARGO_FCR0);
1218                 } else if (number == 2) {
1219                         if (macio->type != macio_intrepid)
1220                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1221                         (void)MACIO_IN32(KEYLARGO_FCR0);
1222                         udelay(1);
1223                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1224                         (void)MACIO_IN32(KEYLARGO_FCR0);
1225                 } else if (number == 4) {
1226                         udelay(1);
1227                         MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1228                         (void)MACIO_IN32(KEYLARGO_FCR1);
1229                 }
1230                 udelay(1);
1231         }
1232         UNLOCK(flags);
1233
1234         return 0;
1235 }
1236
1237 static long
1238 core99_firewire_enable(struct device_node *node, long param, long value)
1239 {
1240         unsigned long flags;
1241         struct macio_chip *macio;
1242
1243         macio = &macio_chips[0];
1244         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1245             macio->type != macio_intrepid)
1246                 return -ENODEV;
1247         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1248                 return -ENODEV;
1249
1250         LOCK(flags);
1251         if (value) {
1252                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1253                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1254         } else {
1255                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1256                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1257         }
1258         UNLOCK(flags);
1259         mdelay(1);
1260
1261         return 0;
1262 }
1263
1264 static long
1265 core99_firewire_cable_power(struct device_node *node, long param, long value)
1266 {
1267         unsigned long flags;
1268         struct macio_chip *macio;
1269
1270         /* Trick: we allow NULL node */
1271         if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1272                 return -ENODEV;
1273         macio = &macio_chips[0];
1274         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1275             macio->type != macio_intrepid)
1276                 return -ENODEV;
1277         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1278                 return -ENODEV;
1279
1280         LOCK(flags);
1281         if (value) {
1282                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1283                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1284                 udelay(10);
1285         } else {
1286                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1287                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1288         }
1289         UNLOCK(flags);
1290         mdelay(1);
1291
1292         return 0;
1293 }
1294
1295 static long
1296 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1297 {
1298         unsigned long flags;
1299
1300         if (uninorth_rev < 0xd2)
1301                 return -ENODEV;
1302
1303         LOCK(flags);
1304         if (param)
1305                 UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1306         else
1307                 UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1308         UNLOCK(flags);
1309
1310         return 0;
1311 }
1312
1313
1314 #endif /* CONFIG_POWER4 */
1315
1316 static long
1317 core99_read_gpio(struct device_node *node, long param, long value)
1318 {
1319         struct macio_chip *macio = &macio_chips[0];
1320
1321         return MACIO_IN8(param);
1322 }
1323
1324
1325 static long
1326 core99_write_gpio(struct device_node *node, long param, long value)
1327 {
1328         struct macio_chip *macio = &macio_chips[0];
1329
1330         MACIO_OUT8(param, (u8)(value & 0xff));
1331         return 0;
1332 }
1333
1334 #ifdef CONFIG_POWER4
1335 static long g5_gmac_enable(struct device_node *node, long param, long value)
1336 {
1337         struct macio_chip *macio = &macio_chips[0];
1338         unsigned long flags;
1339
1340         if (node == NULL)
1341                 return -ENODEV;
1342
1343         LOCK(flags);
1344         if (value) {
1345                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1346                 mb();
1347                 k2_skiplist[0] = NULL;
1348         } else {
1349                 k2_skiplist[0] = node;
1350                 mb();
1351                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1352         }
1353
1354         UNLOCK(flags);
1355         mdelay(1);
1356
1357         return 0;
1358 }
1359
1360 static long g5_fw_enable(struct device_node *node, long param, long value)
1361 {
1362         struct macio_chip *macio = &macio_chips[0];
1363         unsigned long flags;
1364
1365         if (node == NULL)
1366                 return -ENODEV;
1367
1368         LOCK(flags);
1369         if (value) {
1370                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1371                 mb();
1372                 k2_skiplist[1] = NULL;
1373         } else {
1374                 k2_skiplist[1] = node;
1375                 mb();
1376                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1377         }
1378
1379         UNLOCK(flags);
1380         mdelay(1);
1381
1382         return 0;
1383 }
1384
1385 static long g5_mpic_enable(struct device_node *node, long param, long value)
1386 {
1387         unsigned long flags;
1388         struct device_node *parent = of_get_parent(node);
1389         int is_u3;
1390
1391         if (parent == NULL)
1392                 return 0;
1393         is_u3 = strcmp(parent->name, "u3") == 0 ||
1394                 strcmp(parent->name, "u4") == 0;
1395         of_node_put(parent);
1396         if (!is_u3)
1397                 return 0;
1398
1399         LOCK(flags);
1400         UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1401         UNLOCK(flags);
1402
1403         return 0;
1404 }
1405
1406 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1407 {
1408         struct macio_chip *macio = &macio_chips[0];
1409         struct device_node *phy;
1410         int need_reset;
1411
1412         /*
1413          * We must not reset the combo PHYs, only the BCM5221 found in
1414          * the iMac G5.
1415          */
1416         phy = of_get_next_child(node, NULL);
1417         if (!phy)
1418                 return -ENODEV;
1419         need_reset = device_is_compatible(phy, "B5221");
1420         of_node_put(phy);
1421         if (!need_reset)
1422                 return 0;
1423
1424         /* PHY reset is GPIO 29, not in device-tree unfortunately */
1425         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1426                    KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1427         /* Thankfully, this is now always called at a time when we can
1428          * schedule by sungem.
1429          */
1430         msleep(10);
1431         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1432
1433         return 0;
1434 }
1435
1436 static long g5_i2s_enable(struct device_node *node, long param, long value)
1437 {
1438         /* Very crude implementation for now */
1439         struct macio_chip *macio = &macio_chips[0];
1440         unsigned long flags;
1441         int cell;
1442         u32 fcrs[3][3] = {
1443                 { 0,
1444                   K2_FCR1_I2S0_CELL_ENABLE |
1445                   K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE,
1446                   KL3_I2S0_CLK18_ENABLE
1447                 },
1448                 { KL0_SCC_A_INTF_ENABLE,
1449                   K2_FCR1_I2S1_CELL_ENABLE |
1450                   K2_FCR1_I2S1_CLK_ENABLE_BIT | K2_FCR1_I2S1_ENABLE,
1451                   KL3_I2S1_CLK18_ENABLE
1452                 },
1453                 { KL0_SCC_B_INTF_ENABLE,
1454                   SH_FCR1_I2S2_CELL_ENABLE |
1455                   SH_FCR1_I2S2_CLK_ENABLE_BIT | SH_FCR1_I2S2_ENABLE,
1456                   SH_FCR3_I2S2_CLK18_ENABLE
1457                 },
1458         };
1459
1460         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1461                 return -ENODEV;
1462         if (strncmp(node->name, "i2s-", 4))
1463                 return -ENODEV;
1464         cell = node->name[4] - 'a';
1465         switch(cell) {
1466         case 0:
1467         case 1:
1468                 break;
1469         case 2:
1470                 if (macio->type == macio_shasta)
1471                         break;
1472         default:
1473                 return -ENODEV;
1474         }
1475
1476         LOCK(flags);
1477         if (value) {
1478                 MACIO_BIC(KEYLARGO_FCR0, fcrs[cell][0]);
1479                 MACIO_BIS(KEYLARGO_FCR1, fcrs[cell][1]);
1480                 MACIO_BIS(KEYLARGO_FCR3, fcrs[cell][2]);
1481         } else {
1482                 MACIO_BIC(KEYLARGO_FCR3, fcrs[cell][2]);
1483                 MACIO_BIC(KEYLARGO_FCR1, fcrs[cell][1]);
1484                 MACIO_BIS(KEYLARGO_FCR0, fcrs[cell][0]);
1485         }
1486         udelay(10);
1487         UNLOCK(flags);
1488
1489         return 0;
1490 }
1491
1492
1493 #ifdef CONFIG_SMP
1494 static long g5_reset_cpu(struct device_node *node, long param, long value)
1495 {
1496         unsigned int reset_io = 0;
1497         unsigned long flags;
1498         struct macio_chip *macio;
1499         struct device_node *np;
1500
1501         macio = &macio_chips[0];
1502         if (macio->type != macio_keylargo2 && macio->type != macio_shasta)
1503                 return -ENODEV;
1504
1505         np = find_path_device("/cpus");
1506         if (np == NULL)
1507                 return -ENODEV;
1508         for (np = np->child; np != NULL; np = np->sibling) {
1509                 const u32 *num = get_property(np, "reg", NULL);
1510                 const u32 *rst = get_property(np, "soft-reset", NULL);
1511                 if (num == NULL || rst == NULL)
1512                         continue;
1513                 if (param == *num) {
1514                         reset_io = *rst;
1515                         break;
1516                 }
1517         }
1518         if (np == NULL || reset_io == 0)
1519                 return -ENODEV;
1520
1521         LOCK(flags);
1522         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1523         (void)MACIO_IN8(reset_io);
1524         udelay(1);
1525         MACIO_OUT8(reset_io, 0);
1526         (void)MACIO_IN8(reset_io);
1527         UNLOCK(flags);
1528
1529         return 0;
1530 }
1531 #endif /* CONFIG_SMP */
1532
1533 /*
1534  * This can be called from pmac_smp so isn't static
1535  *
1536  * This takes the second CPU off the bus on dual CPU machines
1537  * running UP
1538  */
1539 void g5_phy_disable_cpu1(void)
1540 {
1541         if (uninorth_maj == 3)
1542                 UN_OUT(U3_API_PHY_CONFIG_1, 0);
1543 }
1544 #endif /* CONFIG_POWER4 */
1545
1546 #ifndef CONFIG_POWER4
1547
1548
1549 #ifdef CONFIG_PM
1550 static u32 save_gpio_levels[2];
1551 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
1552 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
1553 static u32 save_unin_clock_ctl;
1554
1555 static void keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1556 {
1557         u32 temp;
1558
1559         if (sleep_mode) {
1560                 mdelay(1);
1561                 MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1562                 (void)MACIO_IN32(KEYLARGO_FCR0);
1563                 mdelay(1);
1564         }
1565
1566         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1567                                 KL0_SCC_CELL_ENABLE |
1568                                 KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1569                                 KL0_IRDA_CLK19_ENABLE);
1570
1571         MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1572         MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1573
1574         MACIO_BIC(KEYLARGO_FCR1,
1575                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1576                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1577                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1578                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1579                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1580                 KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1581                 KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1582                 KL1_UIDE_ENABLE);
1583
1584         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1585         MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1586
1587         temp = MACIO_IN32(KEYLARGO_FCR3);
1588         if (macio->rev >= 2) {
1589                 temp |= KL3_SHUTDOWN_PLL2X;
1590                 if (sleep_mode)
1591                         temp |= KL3_SHUTDOWN_PLL_TOTAL;
1592         }
1593
1594         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1595                 KL3_SHUTDOWN_PLLKW35;
1596         if (sleep_mode)
1597                 temp |= KL3_SHUTDOWN_PLLKW12;
1598         temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1599                 | KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1600         if (sleep_mode)
1601                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1602         MACIO_OUT32(KEYLARGO_FCR3, temp);
1603
1604         /* Flush posted writes & wait a bit */
1605         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1606 }
1607
1608 static void pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1609 {
1610         u32 temp;
1611
1612         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1613                                 KL0_SCC_CELL_ENABLE |
1614                                 KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1615
1616         MACIO_BIC(KEYLARGO_FCR1,
1617                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1618                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1619                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1620                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1621                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1622                 KL1_UIDE_ENABLE);
1623         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1624                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1625
1626         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1627
1628         temp = MACIO_IN32(KEYLARGO_FCR3);
1629         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1630                 KL3_SHUTDOWN_PLLKW35;
1631         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1632                 | KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1633         if (sleep_mode)
1634                 temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1635         MACIO_OUT32(KEYLARGO_FCR3, temp);
1636
1637         /* Flush posted writes & wait a bit */
1638         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1639 }
1640
1641 static void intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1642 {
1643         u32 temp;
1644
1645         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1646                   KL0_SCC_CELL_ENABLE);
1647
1648         MACIO_BIC(KEYLARGO_FCR1,
1649                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1650                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1651                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1652                 KL1_EIDE0_ENABLE);
1653         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1654                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1655
1656         temp = MACIO_IN32(KEYLARGO_FCR3);
1657         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1658                   KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1659         if (sleep_mode)
1660                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1661         MACIO_OUT32(KEYLARGO_FCR3, temp);
1662
1663         /* Flush posted writes & wait a bit */
1664         (void)MACIO_IN32(KEYLARGO_FCR0);
1665         mdelay(10);
1666 }
1667
1668
1669 static int
1670 core99_sleep(void)
1671 {
1672         struct macio_chip *macio;
1673         int i;
1674
1675         macio = &macio_chips[0];
1676         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1677             macio->type != macio_intrepid)
1678                 return -ENODEV;
1679
1680         /* We power off the wireless slot in case it was not done
1681          * by the driver. We don't power it on automatically however
1682          */
1683         if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1684                 core99_airport_enable(macio->of_node, 0, 0);
1685
1686         /* We power off the FW cable. Should be done by the driver... */
1687         if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1688                 core99_firewire_enable(NULL, 0, 0);
1689                 core99_firewire_cable_power(NULL, 0, 0);
1690         }
1691
1692         /* We make sure int. modem is off (in case driver lost it) */
1693         if (macio->type == macio_keylargo)
1694                 core99_modem_enable(macio->of_node, 0, 0);
1695         else
1696                 pangea_modem_enable(macio->of_node, 0, 0);
1697
1698         /* We make sure the sound is off as well */
1699         core99_sound_chip_enable(macio->of_node, 0, 0);
1700
1701         /*
1702          * Save various bits of KeyLargo
1703          */
1704
1705         /* Save the state of the various GPIOs */
1706         save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1707         save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1708         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1709                 save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1710         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1711                 save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1712
1713         /* Save the FCRs */
1714         if (macio->type == macio_keylargo)
1715                 save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1716         save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1717         save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1718         save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1719         save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1720         save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1721         if (macio->type == macio_pangea || macio->type == macio_intrepid)
1722                 save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1723
1724         /* Save state & config of DBDMA channels */
1725         dbdma_save(macio, save_dbdma);
1726
1727         /*
1728          * Turn off as much as we can
1729          */
1730         if (macio->type == macio_pangea)
1731                 pangea_shutdown(macio, 1);
1732         else if (macio->type == macio_intrepid)
1733                 intrepid_shutdown(macio, 1);
1734         else if (macio->type == macio_keylargo)
1735                 keylargo_shutdown(macio, 1);
1736
1737         /*
1738          * Put the host bridge to sleep
1739          */
1740
1741         save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1742         /* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1743          * enabled !
1744          */
1745         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1746                ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1747         udelay(100);
1748         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1749         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1750         mdelay(10);
1751
1752         /*
1753          * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1754          */
1755         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1756                 MACIO_BIS(0x506e0, 0x00400000);
1757                 MACIO_BIS(0x506e0, 0x80000000);
1758         }
1759         return 0;
1760 }
1761
1762 static int
1763 core99_wake_up(void)
1764 {
1765         struct macio_chip *macio;
1766         int i;
1767
1768         macio = &macio_chips[0];
1769         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1770             macio->type != macio_intrepid)
1771                 return -ENODEV;
1772
1773         /*
1774          * Wakeup the host bridge
1775          */
1776         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1777         udelay(10);
1778         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1779         udelay(10);
1780
1781         /*
1782          * Restore KeyLargo
1783          */
1784
1785         if (macio->type == macio_keylargo) {
1786                 MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1787                 (void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1788         }
1789         MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1790         (void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1791         MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1792         (void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1793         MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1794         (void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1795         MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1796         (void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1797         MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1798         (void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1799         if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1800                 MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1801                 (void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1802         }
1803
1804         dbdma_restore(macio, save_dbdma);
1805
1806         MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1807         MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1808         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1809                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1810         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1811                 MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1812
1813         /* FIXME more black magic with OpenPIC ... */
1814         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1815                 MACIO_BIC(0x506e0, 0x00400000);
1816                 MACIO_BIC(0x506e0, 0x80000000);
1817         }
1818
1819         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1820         udelay(100);
1821
1822         return 0;
1823 }
1824
1825 #endif /* CONFIG_PM */
1826
1827 static long
1828 core99_sleep_state(struct device_node *node, long param, long value)
1829 {
1830         /* Param == 1 means to enter the "fake sleep" mode that is
1831          * used for CPU speed switch
1832          */
1833         if (param == 1) {
1834                 if (value == 1) {
1835                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1836                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1837                 } else {
1838                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1839                         udelay(10);
1840                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1841                         udelay(10);
1842                 }
1843                 return 0;
1844         }
1845         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1846                 return -EPERM;
1847
1848 #ifdef CONFIG_PM
1849         if (value == 1)
1850                 return core99_sleep();
1851         else if (value == 0)
1852                 return core99_wake_up();
1853
1854 #endif /* CONFIG_PM */
1855         return 0;
1856 }
1857
1858 #endif /* CONFIG_POWER4 */
1859
1860 static long
1861 generic_dev_can_wake(struct device_node *node, long param, long value)
1862 {
1863         /* Todo: eventually check we are really dealing with on-board
1864          * video device ...
1865          */
1866
1867         if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1868                 pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1869         return 0;
1870 }
1871
1872 static long generic_get_mb_info(struct device_node *node, long param, long value)
1873 {
1874         switch(param) {
1875                 case PMAC_MB_INFO_MODEL:
1876                         return pmac_mb.model_id;
1877                 case PMAC_MB_INFO_FLAGS:
1878                         return pmac_mb.board_flags;
1879                 case PMAC_MB_INFO_NAME:
1880                         /* hack hack hack... but should work */
1881                         *((const char **)value) = pmac_mb.model_name;
1882                         return 0;
1883         }
1884         return -EINVAL;
1885 }
1886
1887
1888 /*
1889  * Table definitions
1890  */
1891
1892 /* Used on any machine
1893  */
1894 static struct feature_table_entry any_features[] = {
1895         { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
1896         { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
1897         { 0, NULL }
1898 };
1899
1900 #ifndef CONFIG_POWER4
1901
1902 /* OHare based motherboards. Currently, we only use these on the
1903  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1904  * to have issues with turning on/off those asic cells
1905  */
1906 static struct feature_table_entry ohare_features[] = {
1907         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1908         { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
1909         { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
1910         { PMAC_FTR_IDE_ENABLE,          ohare_ide_enable},
1911         { PMAC_FTR_IDE_RESET,           ohare_ide_reset},
1912         { PMAC_FTR_SLEEP_STATE,         ohare_sleep_state },
1913         { 0, NULL }
1914 };
1915
1916 /* Heathrow desktop machines (Beige G3).
1917  * Separated as some features couldn't be properly tested
1918  * and the serial port control bits appear to confuse it.
1919  */
1920 static struct feature_table_entry heathrow_desktop_features[] = {
1921         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1922         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1923         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1924         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1925         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1926         { 0, NULL }
1927 };
1928
1929 /* Heathrow based laptop, that is the Wallstreet and mainstreet
1930  * powerbooks.
1931  */
1932 static struct feature_table_entry heathrow_laptop_features[] = {
1933         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1934         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1935         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1936         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1937         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1938         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1939         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1940         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1941         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1942         { 0, NULL }
1943 };
1944
1945 /* Paddington based machines
1946  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
1947  */
1948 static struct feature_table_entry paddington_features[] = {
1949         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1950         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
1951         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1952         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1953         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1954         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1955         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1956         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
1957         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
1958         { 0, NULL }
1959 };
1960
1961 /* Core99 & MacRISC 2 machines (all machines released since the
1962  * iBook (included), that is all AGP machines, except pangea
1963  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
1964  * used on iBook2 & iMac "flow power".
1965  */
1966 static struct feature_table_entry core99_features[] = {
1967         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1968         { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
1969         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1970         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1971         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1972         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1973         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
1974         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
1975         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1976         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1977         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
1978 #ifdef CONFIG_PM
1979         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
1980 #endif
1981 #ifdef CONFIG_SMP
1982         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
1983 #endif /* CONFIG_SMP */
1984         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
1985         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
1986         { 0, NULL }
1987 };
1988
1989 /* RackMac
1990  */
1991 static struct feature_table_entry rackmac_features[] = {
1992         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
1993         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
1994         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
1995         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
1996         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
1997         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
1998         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
1999         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2000         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2001 #ifdef CONFIG_SMP
2002         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
2003 #endif /* CONFIG_SMP */
2004         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2005         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2006         { 0, NULL }
2007 };
2008
2009 /* Pangea features
2010  */
2011 static struct feature_table_entry pangea_features[] = {
2012         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2013         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2014         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2015         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2016         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2017         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2018         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2019         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2020         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2021         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2022         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2023         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2024         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2025         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2026         { 0, NULL }
2027 };
2028
2029 /* Intrepid features
2030  */
2031 static struct feature_table_entry intrepid_features[] = {
2032         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2033         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2034         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2035         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2036         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2037         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2038         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2039         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2040         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2041         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2042         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2043         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2044         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2045         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2046         { PMAC_FTR_AACK_DELAY_ENABLE,   intrepid_aack_delay_enable },
2047         { 0, NULL }
2048 };
2049
2050 #else /* CONFIG_POWER4 */
2051
2052 /* G5 features
2053  */
2054 static struct feature_table_entry g5_features[] = {
2055         { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
2056         { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
2057         { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
2058         { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
2059         { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
2060 #ifdef CONFIG_SMP
2061         { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
2062 #endif /* CONFIG_SMP */
2063         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2064         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2065         { 0, NULL }
2066 };
2067
2068 #endif /* CONFIG_POWER4 */
2069
2070 static struct pmac_mb_def pmac_mb_defs[] = {
2071 #ifndef CONFIG_POWER4
2072         /*
2073          * Desktops
2074          */
2075
2076         {       "AAPL,8500",                    "PowerMac 8500/8600",
2077                 PMAC_TYPE_PSURGE,               NULL,
2078                 0
2079         },
2080         {       "AAPL,9500",                    "PowerMac 9500/9600",
2081                 PMAC_TYPE_PSURGE,               NULL,
2082                 0
2083         },
2084         {       "AAPL,7200",                    "PowerMac 7200",
2085                 PMAC_TYPE_PSURGE,               NULL,
2086                 0
2087         },
2088         {       "AAPL,7300",                    "PowerMac 7200/7300",
2089                 PMAC_TYPE_PSURGE,               NULL,
2090                 0
2091         },
2092         {       "AAPL,7500",                    "PowerMac 7500",
2093                 PMAC_TYPE_PSURGE,               NULL,
2094                 0
2095         },
2096         {       "AAPL,ShinerESB",               "Apple Network Server",
2097                 PMAC_TYPE_ANS,                  NULL,
2098                 0
2099         },
2100         {       "AAPL,e407",                    "Alchemy",
2101                 PMAC_TYPE_ALCHEMY,              NULL,
2102                 0
2103         },
2104         {       "AAPL,e411",                    "Gazelle",
2105                 PMAC_TYPE_GAZELLE,              NULL,
2106                 0
2107         },
2108         {       "AAPL,Gossamer",                "PowerMac G3 (Gossamer)",
2109                 PMAC_TYPE_GOSSAMER,             heathrow_desktop_features,
2110                 0
2111         },
2112         {       "AAPL,PowerMac G3",             "PowerMac G3 (Silk)",
2113                 PMAC_TYPE_SILK,                 heathrow_desktop_features,
2114                 0
2115         },
2116         {       "PowerMac1,1",                  "Blue&White G3",
2117                 PMAC_TYPE_YOSEMITE,             paddington_features,
2118                 0
2119         },
2120         {       "PowerMac1,2",                  "PowerMac G4 PCI Graphics",
2121                 PMAC_TYPE_YIKES,                paddington_features,
2122                 0
2123         },
2124         {       "PowerMac2,1",                  "iMac FireWire",
2125                 PMAC_TYPE_FW_IMAC,              core99_features,
2126                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2127         },
2128         {       "PowerMac2,2",                  "iMac FireWire",
2129                 PMAC_TYPE_FW_IMAC,              core99_features,
2130                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2131         },
2132         {       "PowerMac3,1",                  "PowerMac G4 AGP Graphics",
2133                 PMAC_TYPE_SAWTOOTH,             core99_features,
2134                 PMAC_MB_OLD_CORE99
2135         },
2136         {       "PowerMac3,2",                  "PowerMac G4 AGP Graphics",
2137                 PMAC_TYPE_SAWTOOTH,             core99_features,
2138                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2139         },
2140         {       "PowerMac3,3",                  "PowerMac G4 AGP Graphics",
2141                 PMAC_TYPE_SAWTOOTH,             core99_features,
2142                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2143         },
2144         {       "PowerMac3,4",                  "PowerMac G4 Silver",
2145                 PMAC_TYPE_QUICKSILVER,          core99_features,
2146                 PMAC_MB_MAY_SLEEP
2147         },
2148         {       "PowerMac3,5",                  "PowerMac G4 Silver",
2149                 PMAC_TYPE_QUICKSILVER,          core99_features,
2150                 PMAC_MB_MAY_SLEEP
2151         },
2152         {       "PowerMac3,6",                  "PowerMac G4 Windtunnel",
2153                 PMAC_TYPE_WINDTUNNEL,           core99_features,
2154                 PMAC_MB_MAY_SLEEP,
2155         },
2156         {       "PowerMac4,1",                  "iMac \"Flower Power\"",
2157                 PMAC_TYPE_PANGEA_IMAC,          pangea_features,
2158                 PMAC_MB_MAY_SLEEP
2159         },
2160         {       "PowerMac4,2",                  "Flat panel iMac",
2161                 PMAC_TYPE_FLAT_PANEL_IMAC,      pangea_features,
2162                 PMAC_MB_CAN_SLEEP
2163         },
2164         {       "PowerMac4,4",                  "eMac",
2165                 PMAC_TYPE_EMAC,                 core99_features,
2166                 PMAC_MB_MAY_SLEEP
2167         },
2168         {       "PowerMac5,1",                  "PowerMac G4 Cube",
2169                 PMAC_TYPE_CUBE,                 core99_features,
2170                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2171         },
2172         {       "PowerMac6,1",                  "Flat panel iMac",
2173                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2174                 PMAC_MB_MAY_SLEEP,
2175         },
2176         {       "PowerMac6,3",                  "Flat panel iMac",
2177                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2178                 PMAC_MB_MAY_SLEEP,
2179         },
2180         {       "PowerMac6,4",                  "eMac",
2181                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2182                 PMAC_MB_MAY_SLEEP,
2183         },
2184         {       "PowerMac10,1",                 "Mac mini",
2185                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2186                 PMAC_MB_MAY_SLEEP,
2187         },
2188         {       "iMac,1",                       "iMac (first generation)",
2189                 PMAC_TYPE_ORIG_IMAC,            paddington_features,
2190                 0
2191         },
2192
2193         /*
2194          * Xserve's
2195          */
2196
2197         {       "RackMac1,1",                   "XServe",
2198                 PMAC_TYPE_RACKMAC,              rackmac_features,
2199                 0,
2200         },
2201         {       "RackMac1,2",                   "XServe rev. 2",
2202                 PMAC_TYPE_RACKMAC,              rackmac_features,
2203                 0,
2204         },
2205
2206         /*
2207          * Laptops
2208          */
2209
2210         {       "AAPL,3400/2400",               "PowerBook 3400",
2211                 PMAC_TYPE_HOOPER,               ohare_features,
2212                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2213         },
2214         {       "AAPL,3500",                    "PowerBook 3500",
2215                 PMAC_TYPE_KANGA,                ohare_features,
2216                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2217         },
2218         {       "AAPL,PowerBook1998",           "PowerBook Wallstreet",
2219                 PMAC_TYPE_WALLSTREET,           heathrow_laptop_features,
2220                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2221         },
2222         {       "PowerBook1,1",                 "PowerBook 101 (Lombard)",
2223                 PMAC_TYPE_101_PBOOK,            paddington_features,
2224                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2225         },
2226         {       "PowerBook2,1",                 "iBook (first generation)",
2227                 PMAC_TYPE_ORIG_IBOOK,           core99_features,
2228                 PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2229         },
2230         {       "PowerBook2,2",                 "iBook FireWire",
2231                 PMAC_TYPE_FW_IBOOK,             core99_features,
2232                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2233                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2234         },
2235         {       "PowerBook3,1",                 "PowerBook Pismo",
2236                 PMAC_TYPE_PISMO,                core99_features,
2237                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2238                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2239         },
2240         {       "PowerBook3,2",                 "PowerBook Titanium",
2241                 PMAC_TYPE_TITANIUM,             core99_features,
2242                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2243         },
2244         {       "PowerBook3,3",                 "PowerBook Titanium II",
2245                 PMAC_TYPE_TITANIUM2,            core99_features,
2246                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2247         },
2248         {       "PowerBook3,4",                 "PowerBook Titanium III",
2249                 PMAC_TYPE_TITANIUM3,            core99_features,
2250                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2251         },
2252         {       "PowerBook3,5",                 "PowerBook Titanium IV",
2253                 PMAC_TYPE_TITANIUM4,            core99_features,
2254                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2255         },
2256         {       "PowerBook4,1",                 "iBook 2",
2257                 PMAC_TYPE_IBOOK2,               pangea_features,
2258                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2259         },
2260         {       "PowerBook4,2",                 "iBook 2",
2261                 PMAC_TYPE_IBOOK2,               pangea_features,
2262                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2263         },
2264         {       "PowerBook4,3",                 "iBook 2 rev. 2",
2265                 PMAC_TYPE_IBOOK2,               pangea_features,
2266                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2267         },
2268         {       "PowerBook5,1",                 "PowerBook G4 17\"",
2269                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2270                 PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2271         },
2272         {       "PowerBook5,2",                 "PowerBook G4 15\"",
2273                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2274                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2275         },
2276         {       "PowerBook5,3",                 "PowerBook G4 17\"",
2277                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2278                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2279         },
2280         {       "PowerBook5,4",                 "PowerBook G4 15\"",
2281                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2282                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2283         },
2284         {       "PowerBook5,5",                 "PowerBook G4 17\"",
2285                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2286                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2287         },
2288         {       "PowerBook5,6",                 "PowerBook G4 15\"",
2289                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2290                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2291         },
2292         {       "PowerBook5,7",                 "PowerBook G4 17\"",
2293                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2294                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2295         },
2296         {       "PowerBook5,8",                 "PowerBook G4 15\"",
2297                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2298                 PMAC_MB_MAY_SLEEP  | PMAC_MB_MOBILE,
2299         },
2300         {       "PowerBook5,9",                 "PowerBook G4 17\"",
2301                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2302                 PMAC_MB_MAY_SLEEP | PMAC_MB_MOBILE,
2303         },
2304         {       "PowerBook6,1",                 "PowerBook G4 12\"",
2305                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2306                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2307         },
2308         {       "PowerBook6,2",                 "PowerBook G4",
2309                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2310                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2311         },
2312         {       "PowerBook6,3",                 "iBook G4",
2313                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2314                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2315         },
2316         {       "PowerBook6,4",                 "PowerBook G4 12\"",
2317                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2318                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2319         },
2320         {       "PowerBook6,5",                 "iBook G4",
2321                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2322                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2323         },
2324         {       "PowerBook6,7",                 "iBook G4",
2325                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2326                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2327         },
2328         {       "PowerBook6,8",                 "PowerBook G4 12\"",
2329                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2330                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2331         },
2332 #else /* CONFIG_POWER4 */
2333         {       "PowerMac7,2",                  "PowerMac G5",
2334                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2335                 0,
2336         },
2337 #ifdef CONFIG_PPC64
2338         {       "PowerMac7,3",                  "PowerMac G5",
2339                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2340                 0,
2341         },
2342         {       "PowerMac8,1",                  "iMac G5",
2343                 PMAC_TYPE_IMAC_G5,              g5_features,
2344                 0,
2345         },
2346         {       "PowerMac9,1",                  "PowerMac G5",
2347                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2348                 0,
2349         },
2350         {       "PowerMac11,2",                 "PowerMac G5 Dual Core",
2351                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2352                 0,
2353         },
2354         {       "PowerMac12,1",                 "iMac G5 (iSight)",
2355                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2356                 0,
2357         },
2358         {       "RackMac3,1",                   "XServe G5",
2359                 PMAC_TYPE_XSERVE_G5,            g5_features,
2360                 0,
2361         },
2362 #endif /* CONFIG_PPC64 */
2363 #endif /* CONFIG_POWER4 */
2364 };
2365
2366 /*
2367  * The toplevel feature_call callback
2368  */
2369 long pmac_do_feature_call(unsigned int selector, ...)
2370 {
2371         struct device_node *node;
2372         long param, value;
2373         int i;
2374         feature_call func = NULL;
2375         va_list args;
2376
2377         if (pmac_mb.features)
2378                 for (i=0; pmac_mb.features[i].function; i++)
2379                         if (pmac_mb.features[i].selector == selector) {
2380                                 func = pmac_mb.features[i].function;
2381                                 break;
2382                         }
2383         if (!func)
2384                 for (i=0; any_features[i].function; i++)
2385                         if (any_features[i].selector == selector) {
2386                                 func = any_features[i].function;
2387                                 break;
2388                         }
2389         if (!func)
2390                 return -ENODEV;
2391
2392         va_start(args, selector);
2393         node = (struct device_node*)va_arg(args, void*);
2394         param = va_arg(args, long);
2395         value = va_arg(args, long);
2396         va_end(args);
2397
2398         return func(node, param, value);
2399 }
2400
2401 static int __init probe_motherboard(void)
2402 {
2403         int i;
2404         struct macio_chip *macio = &macio_chips[0];
2405         const char *model = NULL;
2406         struct device_node *dt;
2407
2408         /* Lookup known motherboard type in device-tree. First try an
2409          * exact match on the "model" property, then try a "compatible"
2410          * match is none is found.
2411          */
2412         dt = find_devices("device-tree");
2413         if (dt != NULL)
2414                 model = get_property(dt, "model", NULL);
2415         for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2416             if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2417                 pmac_mb = pmac_mb_defs[i];
2418                 goto found;
2419             }
2420         }
2421         for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2422             if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
2423                 pmac_mb = pmac_mb_defs[i];
2424                 goto found;
2425             }
2426         }
2427
2428         /* Fallback to selection depending on mac-io chip type */
2429         switch(macio->type) {
2430 #ifndef CONFIG_POWER4
2431             case macio_grand_central:
2432                 pmac_mb.model_id = PMAC_TYPE_PSURGE;
2433                 pmac_mb.model_name = "Unknown PowerSurge";
2434                 break;
2435             case macio_ohare:
2436                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2437                 pmac_mb.model_name = "Unknown OHare-based";
2438                 break;
2439             case macio_heathrow:
2440                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2441                 pmac_mb.model_name = "Unknown Heathrow-based";
2442                 pmac_mb.features = heathrow_desktop_features;
2443                 break;
2444             case macio_paddington:
2445                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2446                 pmac_mb.model_name = "Unknown Paddington-based";
2447                 pmac_mb.features = paddington_features;
2448                 break;
2449             case macio_keylargo:
2450                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2451                 pmac_mb.model_name = "Unknown Keylargo-based";
2452                 pmac_mb.features = core99_features;
2453                 break;
2454             case macio_pangea:
2455                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2456                 pmac_mb.model_name = "Unknown Pangea-based";
2457                 pmac_mb.features = pangea_features;
2458                 break;
2459             case macio_intrepid:
2460                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2461                 pmac_mb.model_name = "Unknown Intrepid-based";
2462                 pmac_mb.features = intrepid_features;
2463                 break;
2464 #else /* CONFIG_POWER4 */
2465         case macio_keylargo2:
2466                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2467                 pmac_mb.model_name = "Unknown K2-based";
2468                 pmac_mb.features = g5_features;
2469                 break;
2470         case macio_shasta:
2471                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_SHASTA;
2472                 pmac_mb.model_name = "Unknown Shasta-based";
2473                 pmac_mb.features = g5_features;
2474                 break;
2475 #endif /* CONFIG_POWER4 */
2476         default:
2477                 return -ENODEV;
2478         }
2479 found:
2480 #ifndef CONFIG_POWER4
2481         /* Fixup Hooper vs. Comet */
2482         if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2483                 u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2484                 if (!mach_id_ptr)
2485                         return -ENODEV;
2486                 /* Here, I used to disable the media-bay on comet. It
2487                  * appears this is wrong, the floppy connector is actually
2488                  * a kind of media-bay and works with the current driver.
2489                  */
2490                 if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2491                         pmac_mb.model_id = PMAC_TYPE_COMET;
2492                 iounmap(mach_id_ptr);
2493         }
2494
2495         /* Set default value of powersave_nap on machines that support it.
2496          * It appears that uninorth rev 3 has a problem with it, we don't
2497          * enable it on those. In theory, the flush-on-lock property is
2498          * supposed to be set when not supported, but I'm not very confident
2499          * that all Apple OF revs did it properly, I do it the paranoid way.
2500          */
2501         while (uninorth_base && uninorth_rev > 3) {
2502                 struct device_node *np = find_path_device("/cpus");
2503                 if (!np || !np->child) {
2504                         printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
2505                         break;
2506                 }
2507                 np = np->child;
2508                 /* Nap mode not supported on SMP */
2509                 if (np->sibling)
2510                         break;
2511                 /* Nap mode not supported if flush-on-lock property is present */
2512                 if (get_property(np, "flush-on-lock", NULL))
2513                         break;
2514                 powersave_nap = 1;
2515                 printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n");
2516                 break;
2517         }
2518
2519         /* On CPUs that support it (750FX), lowspeed by default during
2520          * NAP mode
2521          */
2522         powersave_lowspeed = 1;
2523
2524 #else /* CONFIG_POWER4 */
2525         powersave_nap = 1;
2526 #endif  /* CONFIG_POWER4 */
2527
2528         /* Check for "mobile" machine */
2529         if (model && (strncmp(model, "PowerBook", 9) == 0
2530                    || strncmp(model, "iBook", 5) == 0))
2531                 pmac_mb.board_flags |= PMAC_MB_MOBILE;
2532
2533
2534         printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2535         return 0;
2536 }
2537
2538 /* Initialize the Core99 UniNorth host bridge and memory controller
2539  */
2540 static void __init probe_uninorth(void)
2541 {
2542         const u32 *addrp;
2543         phys_addr_t address;
2544         unsigned long actrl;
2545
2546         /* Locate core99 Uni-N */
2547         uninorth_node = of_find_node_by_name(NULL, "uni-n");
2548         /* Locate G5 u3 */
2549         if (uninorth_node == NULL) {
2550                 uninorth_node = of_find_node_by_name(NULL, "u3");
2551                 uninorth_maj = 3;
2552         }
2553         /* Locate G5 u4 */
2554         if (uninorth_node == NULL) {
2555                 uninorth_node = of_find_node_by_name(NULL, "u4");
2556                 uninorth_maj = 4;
2557         }
2558         if (uninorth_node == NULL)
2559                 return;
2560
2561         addrp = get_property(uninorth_node, "reg", NULL);
2562         if (addrp == NULL)
2563                 return;
2564         address = of_translate_address(uninorth_node, addrp);
2565         if (address == 0)
2566                 return;
2567         uninorth_base = ioremap(address, 0x40000);
2568         uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2569         if (uninorth_maj == 3 || uninorth_maj == 4)
2570                 u3_ht_base = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2571
2572         printk(KERN_INFO "Found %s memory controller & host bridge"
2573                " @ 0x%08x revision: 0x%02x\n", uninorth_maj == 3 ? "U3" :
2574                uninorth_maj == 4 ? "U4" : "UniNorth",
2575                (unsigned int)address, uninorth_rev);
2576         printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2577
2578         /* Set the arbitrer QAck delay according to what Apple does
2579          */
2580         if (uninorth_rev < 0x11) {
2581                 actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2582                 actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2583                         UNI_N_ARB_CTRL_QACK_DELAY) <<
2584                         UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2585                 UN_OUT(UNI_N_ARB_CTRL, actrl);
2586         }
2587
2588         /* Some more magic as done by them in recent MacOS X on UniNorth
2589          * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2590          * memory timeout
2591          */
2592         if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) ||
2593             uninorth_rev == 0xc0)
2594                 UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2595 }
2596
2597 static void __init probe_one_macio(const char *name, const char *compat, int type)
2598 {
2599         struct device_node*     node;
2600         int                     i;
2601         volatile u32 __iomem    *base;
2602         const u32               *addrp, *revp;
2603         phys_addr_t             addr;
2604         u64                     size;
2605
2606         for (node = NULL; (node = of_find_node_by_name(node, name)) != NULL;) {
2607                 if (!compat)
2608                         break;
2609                 if (device_is_compatible(node, compat))
2610                         break;
2611         }
2612         if (!node)
2613                 return;
2614         for(i=0; i<MAX_MACIO_CHIPS; i++) {
2615                 if (!macio_chips[i].of_node)
2616                         break;
2617                 if (macio_chips[i].of_node == node)
2618                         return;
2619         }
2620
2621         if (i >= MAX_MACIO_CHIPS) {
2622                 printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2623                 printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
2624                 return;
2625         }
2626         addrp = of_get_pci_address(node, 0, &size, NULL);
2627         if (addrp == NULL) {
2628                 printk(KERN_ERR "pmac_feature: %s: can't find base !\n",
2629                        node->full_name);
2630                 return;
2631         }
2632         addr = of_translate_address(node, addrp);
2633         if (addr == 0) {
2634                 printk(KERN_ERR "pmac_feature: %s, can't translate base !\n",
2635                        node->full_name);
2636                 return;
2637         }
2638         base = ioremap(addr, (unsigned long)size);
2639         if (!base) {
2640                 printk(KERN_ERR "pmac_feature: %s, can't map mac-io chip !\n",
2641                        node->full_name);
2642                 return;
2643         }
2644         if (type == macio_keylargo || type == macio_keylargo2) {
2645                 const u32 *did = get_property(node, "device-id", NULL);
2646                 if (*did == 0x00000025)
2647                         type = macio_pangea;
2648                 if (*did == 0x0000003e)
2649                         type = macio_intrepid;
2650                 if (*did == 0x0000004f)
2651                         type = macio_shasta;
2652         }
2653         macio_chips[i].of_node  = node;
2654         macio_chips[i].type     = type;
2655         macio_chips[i].base     = base;
2656         macio_chips[i].flags    = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
2657         macio_chips[i].name     = macio_names[type];
2658         revp = get_property(node, "revision-id", NULL);
2659         if (revp)
2660                 macio_chips[i].rev = *revp;
2661         printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2662                 macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2663 }
2664
2665 static int __init
2666 probe_macios(void)
2667 {
2668         /* Warning, ordering is important */
2669         probe_one_macio("gc", NULL, macio_grand_central);
2670         probe_one_macio("ohare", NULL, macio_ohare);
2671         probe_one_macio("pci106b,7", NULL, macio_ohareII);
2672         probe_one_macio("mac-io", "keylargo", macio_keylargo);
2673         probe_one_macio("mac-io", "paddington", macio_paddington);
2674         probe_one_macio("mac-io", "gatwick", macio_gatwick);
2675         probe_one_macio("mac-io", "heathrow", macio_heathrow);
2676         probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2677
2678         /* Make sure the "main" macio chip appear first */
2679         if (macio_chips[0].type == macio_gatwick
2680             && macio_chips[1].type == macio_heathrow) {
2681                 struct macio_chip temp = macio_chips[0];
2682                 macio_chips[0] = macio_chips[1];
2683                 macio_chips[1] = temp;
2684         }
2685         if (macio_chips[0].type == macio_ohareII
2686             && macio_chips[1].type == macio_ohare) {
2687                 struct macio_chip temp = macio_chips[0];
2688                 macio_chips[0] = macio_chips[1];
2689                 macio_chips[1] = temp;
2690         }
2691         macio_chips[0].lbus.index = 0;
2692         macio_chips[1].lbus.index = 1;
2693
2694         return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2695 }
2696
2697 static void __init
2698 initial_serial_shutdown(struct device_node *np)
2699 {
2700         int len;
2701         const struct slot_names_prop {
2702                 int     count;
2703                 char    name[1];
2704         } *slots;
2705         const char *conn;
2706         int port_type = PMAC_SCC_ASYNC;
2707         int modem = 0;
2708
2709         slots = get_property(np, "slot-names", &len);
2710         conn = get_property(np, "AAPL,connector", &len);
2711         if (conn && (strcmp(conn, "infrared") == 0))
2712                 port_type = PMAC_SCC_IRDA;
2713         else if (device_is_compatible(np, "cobalt"))
2714                 modem = 1;
2715         else if (slots && slots->count > 0) {
2716                 if (strcmp(slots->name, "IrDA") == 0)
2717                         port_type = PMAC_SCC_IRDA;
2718                 else if (strcmp(slots->name, "Modem") == 0)
2719                         modem = 1;
2720         }
2721         if (modem)
2722                 pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2723         pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2724 }
2725
2726 static void __init
2727 set_initial_features(void)
2728 {
2729         struct device_node *np;
2730
2731         /* That hack appears to be necessary for some StarMax motherboards
2732          * but I'm not too sure it was audited for side-effects on other
2733          * ohare based machines...
2734          * Since I still have difficulties figuring the right way to
2735          * differenciate them all and since that hack was there for a long
2736          * time, I'll keep it around
2737          */
2738         if (macio_chips[0].type == macio_ohare && !find_devices("via-pmu")) {
2739                 struct macio_chip *macio = &macio_chips[0];
2740                 MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2741         } else if (macio_chips[0].type == macio_ohare) {
2742                 struct macio_chip *macio = &macio_chips[0];
2743                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2744         } else if (macio_chips[1].type == macio_ohare) {
2745                 struct macio_chip *macio = &macio_chips[1];
2746                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2747         }
2748
2749 #ifdef CONFIG_POWER4
2750         if (macio_chips[0].type == macio_keylargo2 ||
2751             macio_chips[0].type == macio_shasta) {
2752 #ifndef CONFIG_SMP
2753                 /* On SMP machines running UP, we have the second CPU eating
2754                  * bus cycles. We need to take it off the bus. This is done
2755                  * from pmac_smp for SMP kernels running on one CPU
2756                  */
2757                 np = of_find_node_by_type(NULL, "cpu");
2758                 if (np != NULL)
2759                         np = of_find_node_by_type(np, "cpu");
2760                 if (np != NULL) {
2761                         g5_phy_disable_cpu1();
2762                         of_node_put(np);
2763                 }
2764 #endif /* CONFIG_SMP */
2765                 /* Enable GMAC for now for PCI probing. It will be disabled
2766                  * later on after PCI probe
2767                  */
2768                 np = of_find_node_by_name(NULL, "ethernet");
2769                 while(np) {
2770                         if (device_is_compatible(np, "K2-GMAC"))
2771                                 g5_gmac_enable(np, 0, 1);
2772                         np = of_find_node_by_name(np, "ethernet");
2773                 }
2774
2775                 /* Enable FW before PCI probe. Will be disabled later on
2776                  * Note: We should have a batter way to check that we are
2777                  * dealing with uninorth internal cell and not a PCI cell
2778                  * on the external PCI. The code below works though.
2779                  */
2780                 np = of_find_node_by_name(NULL, "firewire");
2781                 while(np) {
2782                         if (device_is_compatible(np, "pci106b,5811")) {
2783                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2784                                 g5_fw_enable(np, 0, 1);
2785                         }
2786                         np = of_find_node_by_name(np, "firewire");
2787                 }
2788         }
2789 #else /* CONFIG_POWER4 */
2790
2791         if (macio_chips[0].type == macio_keylargo ||
2792             macio_chips[0].type == macio_pangea ||
2793             macio_chips[0].type == macio_intrepid) {
2794                 /* Enable GMAC for now for PCI probing. It will be disabled
2795                  * later on after PCI probe
2796                  */
2797                 np = of_find_node_by_name(NULL, "ethernet");
2798                 while(np) {
2799                         if (np->parent
2800                             && device_is_compatible(np->parent, "uni-north")
2801                             && device_is_compatible(np, "gmac"))
2802                                 core99_gmac_enable(np, 0, 1);
2803                         np = of_find_node_by_name(np, "ethernet");
2804                 }
2805
2806                 /* Enable FW before PCI probe. Will be disabled later on
2807                  * Note: We should have a batter way to check that we are
2808                  * dealing with uninorth internal cell and not a PCI cell
2809                  * on the external PCI. The code below works though.
2810                  */
2811                 np = of_find_node_by_name(NULL, "firewire");
2812                 while(np) {
2813                         if (np->parent
2814                             && device_is_compatible(np->parent, "uni-north")
2815                             && (device_is_compatible(np, "pci106b,18") ||
2816                                 device_is_compatible(np, "pci106b,30") ||
2817                                 device_is_compatible(np, "pci11c1,5811"))) {
2818                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2819                                 core99_firewire_enable(np, 0, 1);
2820                         }
2821                         np = of_find_node_by_name(np, "firewire");
2822                 }
2823
2824                 /* Enable ATA-100 before PCI probe. */
2825                 np = of_find_node_by_name(NULL, "ata-6");
2826                 while(np) {
2827                         if (np->parent
2828                             && device_is_compatible(np->parent, "uni-north")
2829                             && device_is_compatible(np, "kauai-ata")) {
2830                                 core99_ata100_enable(np, 1);
2831                         }
2832                         np = of_find_node_by_name(np, "ata-6");
2833                 }
2834
2835                 /* Switch airport off */
2836                 np = find_devices("radio");
2837                 while(np) {
2838                         if (np && np->parent == macio_chips[0].of_node) {
2839                                 macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2840                                 core99_airport_enable(np, 0, 0);
2841                         }
2842                         np = np->next;
2843                 }
2844         }
2845
2846         /* On all machines that support sound PM, switch sound off */
2847         if (macio_chips[0].of_node)
2848                 pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2849                         macio_chips[0].of_node, 0, 0);
2850
2851         /* While on some desktop G3s, we turn it back on */
2852         if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2853                 && (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2854                     pmac_mb.model_id == PMAC_TYPE_SILK)) {
2855                 struct macio_chip *macio = &macio_chips[0];
2856                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2857                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2858         }
2859
2860 #endif /* CONFIG_POWER4 */
2861
2862         /* On all machines, switch modem & serial ports off */
2863         np = find_devices("ch-a");
2864         while(np) {
2865                 initial_serial_shutdown(np);
2866                 np = np->next;
2867         }
2868         np = find_devices("ch-b");
2869         while(np) {
2870                 initial_serial_shutdown(np);
2871                 np = np->next;
2872         }
2873 }
2874
2875 void __init
2876 pmac_feature_init(void)
2877 {
2878         /* Detect the UniNorth memory controller */
2879         probe_uninorth();
2880
2881         /* Probe mac-io controllers */
2882         if (probe_macios()) {
2883                 printk(KERN_WARNING "No mac-io chip found\n");
2884                 return;
2885         }
2886
2887         /* Probe machine type */
2888         if (probe_motherboard())
2889                 printk(KERN_WARNING "Unknown PowerMac !\n");
2890
2891         /* Set some initial features (turn off some chips that will
2892          * be later turned on)
2893          */
2894         set_initial_features();
2895 }
2896
2897 #if 0
2898 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2899 {
2900         int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2901         int     bits[8] = { 8,16,0,32,2,4,0,0 };
2902         int     freq = (frq >> 8) & 0xf;
2903
2904         if (freqs[freq] == 0)
2905                 printk("%s: Unknown HT link frequency %x\n", name, freq);
2906         else
2907                 printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2908                        name, freqs[freq],
2909                        bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2910 }
2911
2912 void __init pmac_check_ht_link(void)
2913 {
2914         u32     ufreq, freq, ucfg, cfg;
2915         struct device_node *pcix_node;
2916         u8      px_bus, px_devfn;
2917         struct pci_controller *px_hose;
2918
2919         (void)in_be32(u3_ht_base + U3_HT_LINK_COMMAND);
2920         ucfg = cfg = in_be32(u3_ht_base + U3_HT_LINK_CONFIG);
2921         ufreq = freq = in_be32(u3_ht_base + U3_HT_LINK_FREQ);
2922         dump_HT_speeds("U3 HyperTransport", cfg, freq);
2923
2924         pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2925         if (pcix_node == NULL) {
2926                 printk("No PCI-X bridge found\n");
2927                 return;
2928         }
2929         if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2930                 printk("PCI-X bridge found but not matched to pci\n");
2931                 return;
2932         }
2933         px_hose = pci_find_hose_for_OF_device(pcix_node);
2934         if (px_hose == NULL) {
2935                 printk("PCI-X bridge found but not matched to host\n");
2936                 return;
2937         }
2938         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2939         early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2940         dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2941         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2942         early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2943         dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2944 }
2945 #endif /* 0 */
2946
2947 /*
2948  * Early video resume hook
2949  */
2950
2951 static void (*pmac_early_vresume_proc)(void *data);
2952 static void *pmac_early_vresume_data;
2953
2954 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
2955 {
2956         if (!machine_is(powermac))
2957                 return;
2958         preempt_disable();
2959         pmac_early_vresume_proc = proc;
2960         pmac_early_vresume_data = data;
2961         preempt_enable();
2962 }
2963 EXPORT_SYMBOL(pmac_set_early_video_resume);
2964
2965 void pmac_call_early_video_resume(void)
2966 {
2967         if (pmac_early_vresume_proc)
2968                 pmac_early_vresume_proc(pmac_early_vresume_data);
2969 }
2970
2971 /*
2972  * AGP related suspend/resume code
2973  */
2974
2975 static struct pci_dev *pmac_agp_bridge;
2976 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
2977 static int (*pmac_agp_resume)(struct pci_dev *bridge);
2978
2979 void pmac_register_agp_pm(struct pci_dev *bridge,
2980                                  int (*suspend)(struct pci_dev *bridge),
2981                                  int (*resume)(struct pci_dev *bridge))
2982 {
2983         if (suspend || resume) {
2984                 pmac_agp_bridge = bridge;
2985                 pmac_agp_suspend = suspend;
2986                 pmac_agp_resume = resume;
2987                 return;
2988         }
2989         if (bridge != pmac_agp_bridge)
2990                 return;
2991         pmac_agp_suspend = pmac_agp_resume = NULL;
2992         return;
2993 }
2994 EXPORT_SYMBOL(pmac_register_agp_pm);
2995
2996 void pmac_suspend_agp_for_card(struct pci_dev *dev)
2997 {
2998         if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
2999                 return;
3000         if (pmac_agp_bridge->bus != dev->bus)
3001                 return;
3002         pmac_agp_suspend(pmac_agp_bridge);
3003 }
3004 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3005
3006 void pmac_resume_agp_for_card(struct pci_dev *dev)
3007 {
3008         if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3009                 return;
3010         if (pmac_agp_bridge->bus != dev->bus)
3011                 return;
3012         pmac_agp_resume(pmac_agp_bridge);
3013 }
3014 EXPORT_SYMBOL(pmac_resume_agp_for_card);