arch/powerpc/platforms/powermac/feature.c

   1 /*
   2  *  arch/ppc/platforms/pmac_feature.c
   3  *
   4  *  Copyright (C) 1996-2001 Paul Mackerras (paulus@cs.anu.edu.au)
   5  *                          Ben. Herrenschmidt (benh@kernel.crashing.org)
   6  *
   7  *  This program is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU General Public License
   9  *  as published by the Free Software Foundation; either version
  10  *  2 of the License, or (at your option) any later version.
  11  *
  12  *  TODO:
  13  *
  14  *   - Replace mdelay with some schedule loop if possible
  15  *   - Shorten some obfuscated delays on some routines (like modem
  16  *     power)
  17  *   - Refcount some clocks (see darwin)
  18  *   - Split split split...
  19  *
  20  */
  21 #include <linux/config.h>
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/delay.h>
  25 #include <linux/kernel.h>
  26 #include <linux/sched.h>
  27 #include <linux/spinlock.h>
  28 #include <linux/adb.h>
  29 #include <linux/pmu.h>
  30 #include <linux/ioport.h>
  31 #include <linux/pci.h>
  32 #include <asm/sections.h>
  33 #include <asm/errno.h>
  34 #include <asm/ohare.h>
  35 #include <asm/heathrow.h>
  36 #include <asm/keylargo.h>
  37 #include <asm/uninorth.h>
  38 #include <asm/io.h>
  39 #include <asm/prom.h>
  40 #include <asm/machdep.h>
  41 #include <asm/pmac_feature.h>
  42 #include <asm/dbdma.h>
  43 #include <asm/pci-bridge.h>
  44 #include <asm/pmac_low_i2c.h>
  45
  46 #undef DEBUG_FEATURE
  47
  48 #ifdef DEBUG_FEATURE
  49 #define DBG(fmt...) printk(KERN_DEBUG fmt)
  50 #else
  51 #define DBG(fmt...)
  52 #endif
  53
  54 #ifdef CONFIG_6xx
  55 extern int powersave_lowspeed;
  56 #endif
  57
  58 extern int powersave_nap;
  59 extern struct device_node *k2_skiplist[2];
  60
  61
  62 /*
  63  * We use a single global lock to protect accesses. Each driver has
  64  * to take care of its own locking
  65  */
  66 static DEFINE_SPINLOCK(feature_lock);
  67
  68 #define LOCK(flags)     spin_lock_irqsave(&feature_lock, flags);
  69 #define UNLOCK(flags)   spin_unlock_irqrestore(&feature_lock, flags);
  70
  71
  72 /*
  73  * Instance of some macio stuffs
  74  */
  75 struct macio_chip macio_chips[MAX_MACIO_CHIPS];
  76
  77 struct macio_chip *macio_find(struct device_node *child, int type)
  78 {
  79         while(child) {
  80                 int     i;
  81
  82                 for (i=0; i < MAX_MACIO_CHIPS && macio_chips[i].of_node; i++)
  83                         if (child == macio_chips[i].of_node &&
  84                             (!type || macio_chips[i].type == type))
  85                                 return &macio_chips[i];
  86                 child = child->parent;
  87         }
  88         return NULL;
  89 }
  90 EXPORT_SYMBOL_GPL(macio_find);
  91
  92 static const char *macio_names[] =
  93 {
  94         "Unknown",
  95         "Grand Central",
  96         "OHare",
  97         "OHareII",
  98         "Heathrow",
  99         "Gatwick",
 100         "Paddington",
 101         "Keylargo",
 102         "Pangea",
 103         "Intrepid",
 104         "K2"
 105 };
 106
 107
 108
 109 /*
 110  * Uninorth reg. access. Note that Uni-N regs are big endian
 111  */
 112
 113 #define UN_REG(r)       (uninorth_base + ((r) >> 2))
 114 #define UN_IN(r)        (in_be32(UN_REG(r)))
 115 #define UN_OUT(r,v)     (out_be32(UN_REG(r), (v)))
 116 #define UN_BIS(r,v)     (UN_OUT((r), UN_IN(r) | (v)))
 117 #define UN_BIC(r,v)     (UN_OUT((r), UN_IN(r) & ~(v)))
 118
 119 static struct device_node *uninorth_node;
 120 static u32 __iomem *uninorth_base;
 121 static u32 uninorth_rev;
 122 static int uninorth_u3;
 123 static void __iomem *u3_ht;
 124
 125 /*
 126  * For each motherboard family, we have a table of functions pointers
 127  * that handle the various features.
 128  */
 129
 130 typedef long (*feature_call)(struct device_node *node, long param, long value);
 131
 132 struct feature_table_entry {
 133         unsigned int    selector;
 134         feature_call    function;
 135 };
 136
 137 struct pmac_mb_def
 138 {
 139         const char*                     model_string;
 140         const char*                     model_name;
 141         int                             model_id;
 142         struct feature_table_entry*     features;
 143         unsigned long                   board_flags;
 144 };
 145 static struct pmac_mb_def pmac_mb;
 146
 147 /*
 148  * Here are the chip specific feature functions
 149  */
 150
 151 static inline int simple_feature_tweak(struct device_node *node, int type,
 152                                        int reg, u32 mask, int value)
 153 {
 154         struct macio_chip*      macio;
 155         unsigned long           flags;
 156
 157         macio = macio_find(node, type);
 158         if (!macio)
 159                 return -ENODEV;
 160         LOCK(flags);
 161         if (value)
 162                 MACIO_BIS(reg, mask);
 163         else
 164                 MACIO_BIC(reg, mask);
 165         (void)MACIO_IN32(reg);
 166         UNLOCK(flags);
 167
 168         return 0;
 169 }
 170
 171 #ifndef CONFIG_POWER4
 172
 173 static long ohare_htw_scc_enable(struct device_node *node, long param,
 174                                  long value)
 175 {
 176         struct macio_chip*      macio;
 177         unsigned long           chan_mask;
 178         unsigned long           fcr;
 179         unsigned long           flags;
 180         int                     htw, trans;
 181         unsigned long           rmask;
 182
 183         macio = macio_find(node, 0);
 184         if (!macio)
 185                 return -ENODEV;
 186         if (!strcmp(node->name, "ch-a"))
 187                 chan_mask = MACIO_FLAG_SCCA_ON;
 188         else if (!strcmp(node->name, "ch-b"))
 189                 chan_mask = MACIO_FLAG_SCCB_ON;
 190         else
 191                 return -ENODEV;
 192
 193         htw = (macio->type == macio_heathrow || macio->type == macio_paddington
 194                 || macio->type == macio_gatwick);
 195         /* On these machines, the HRW_SCC_TRANS_EN_N bit mustn't be touched */
 196         trans = (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
 197                  pmac_mb.model_id != PMAC_TYPE_YIKES);
 198         if (value) {
 199 #ifdef CONFIG_ADB_PMU
 200                 if ((param & 0xfff) == PMAC_SCC_IRDA)
 201                         pmu_enable_irled(1);
 202 #endif /* CONFIG_ADB_PMU */
 203                 LOCK(flags);
 204                 fcr = MACIO_IN32(OHARE_FCR);
 205                 /* Check if scc cell need enabling */
 206                 if (!(fcr & OH_SCC_ENABLE)) {
 207                         fcr |= OH_SCC_ENABLE;
 208                         if (htw) {
 209                                 /* Side effect: this will also power up the
 210                                  * modem, but it's too messy to figure out on which
 211                                  * ports this controls the tranceiver and on which
 212                                  * it controls the modem
 213                                  */
 214                                 if (trans)
 215                                         fcr &= ~HRW_SCC_TRANS_EN_N;
 216                                 MACIO_OUT32(OHARE_FCR, fcr);
 217                                 fcr |= (rmask = HRW_RESET_SCC);
 218                                 MACIO_OUT32(OHARE_FCR, fcr);
 219                         } else {
 220                                 fcr |= (rmask = OH_SCC_RESET);
 221                                 MACIO_OUT32(OHARE_FCR, fcr);
 222                         }
 223                         UNLOCK(flags);
 224                         (void)MACIO_IN32(OHARE_FCR);
 225                         mdelay(15);
 226                         LOCK(flags);
 227                         fcr &= ~rmask;
 228                         MACIO_OUT32(OHARE_FCR, fcr);
 229                 }
 230                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 231                         fcr |= OH_SCCA_IO;
 232                 if (chan_mask & MACIO_FLAG_SCCB_ON)
 233                         fcr |= OH_SCCB_IO;
 234                 MACIO_OUT32(OHARE_FCR, fcr);
 235                 macio->flags |= chan_mask;
 236                 UNLOCK(flags);
 237                 if (param & PMAC_SCC_FLAG_XMON)
 238                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
 239         } else {
 240                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
 241                         return -EPERM;
 242                 LOCK(flags);
 243                 fcr = MACIO_IN32(OHARE_FCR);
 244                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 245                         fcr &= ~OH_SCCA_IO;
 246                 if (chan_mask & MACIO_FLAG_SCCB_ON)
 247                         fcr &= ~OH_SCCB_IO;
 248                 MACIO_OUT32(OHARE_FCR, fcr);
 249                 if ((fcr & (OH_SCCA_IO | OH_SCCB_IO)) == 0) {
 250                         fcr &= ~OH_SCC_ENABLE;
 251                         if (htw && trans)
 252                                 fcr |= HRW_SCC_TRANS_EN_N;
 253                         MACIO_OUT32(OHARE_FCR, fcr);
 254                 }
 255                 macio->flags &= ~(chan_mask);
 256                 UNLOCK(flags);
 257                 mdelay(10);
 258 #ifdef CONFIG_ADB_PMU
 259                 if ((param & 0xfff) == PMAC_SCC_IRDA)
 260                         pmu_enable_irled(0);
 261 #endif /* CONFIG_ADB_PMU */
 262         }
 263         return 0;
 264 }
 265
 266 static long ohare_floppy_enable(struct device_node *node, long param,
 267                                 long value)
 268 {
 269         return simple_feature_tweak(node, macio_ohare,
 270                 OHARE_FCR, OH_FLOPPY_ENABLE, value);
 271 }
 272
 273 static long ohare_mesh_enable(struct device_node *node, long param, long value)
 274 {
 275         return simple_feature_tweak(node, macio_ohare,
 276                 OHARE_FCR, OH_MESH_ENABLE, value);
 277 }
 278
 279 static long ohare_ide_enable(struct device_node *node, long param, long value)
 280 {
 281         switch(param) {
 282         case 0:
 283                 /* For some reason, setting the bit in set_initial_features()
 284                  * doesn't stick. I'm still investigating... --BenH.
 285                  */
 286                 if (value)
 287                         simple_feature_tweak(node, macio_ohare,
 288                                 OHARE_FCR, OH_IOBUS_ENABLE, 1);
 289                 return simple_feature_tweak(node, macio_ohare,
 290                         OHARE_FCR, OH_IDE0_ENABLE, value);
 291         case 1:
 292                 return simple_feature_tweak(node, macio_ohare,
 293                         OHARE_FCR, OH_BAY_IDE_ENABLE, value);
 294         default:
 295                 return -ENODEV;
 296         }
 297 }
 298
 299 static long ohare_ide_reset(struct device_node *node, long param, long value)
 300 {
 301         switch(param) {
 302         case 0:
 303                 return simple_feature_tweak(node, macio_ohare,
 304                         OHARE_FCR, OH_IDE0_RESET_N, !value);
 305         case 1:
 306                 return simple_feature_tweak(node, macio_ohare,
 307                         OHARE_FCR, OH_IDE1_RESET_N, !value);
 308         default:
 309                 return -ENODEV;
 310         }
 311 }
 312
 313 static long ohare_sleep_state(struct device_node *node, long param, long value)
 314 {
 315         struct macio_chip*      macio = &macio_chips[0];
 316
 317         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
 318                 return -EPERM;
 319         if (value == 1) {
 320                 MACIO_BIC(OHARE_FCR, OH_IOBUS_ENABLE);
 321         } else if (value == 0) {
 322                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
 323         }
 324
 325         return 0;
 326 }
 327
 328 static long heathrow_modem_enable(struct device_node *node, long param,
 329                                   long value)
 330 {
 331         struct macio_chip*      macio;
 332         u8                      gpio;
 333         unsigned long           flags;
 334
 335         macio = macio_find(node, macio_unknown);
 336         if (!macio)
 337                 return -ENODEV;
 338         gpio = MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1;
 339         if (!value) {
 340                 LOCK(flags);
 341                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
 342                 UNLOCK(flags);
 343                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 344                 mdelay(250);
 345         }
 346         if (pmac_mb.model_id != PMAC_TYPE_YOSEMITE &&
 347             pmac_mb.model_id != PMAC_TYPE_YIKES) {
 348                 LOCK(flags);
 349                 if (value)
 350                         MACIO_BIC(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 351                 else
 352                         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 353                 UNLOCK(flags);
 354                 (void)MACIO_IN32(HEATHROW_FCR);
 355                 mdelay(250);
 356         }
 357         if (value) {
 358                 LOCK(flags);
 359                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
 360                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 361                 UNLOCK(flags); mdelay(250); LOCK(flags);
 362                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio);
 363                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 364                 UNLOCK(flags); mdelay(250); LOCK(flags);
 365                 MACIO_OUT8(HRW_GPIO_MODEM_RESET, gpio | 1);
 366                 (void)MACIO_IN8(HRW_GPIO_MODEM_RESET);
 367                 UNLOCK(flags); mdelay(250);
 368         }
 369         return 0;
 370 }
 371
 372 static long heathrow_floppy_enable(struct device_node *node, long param,
 373                                    long value)
 374 {
 375         return simple_feature_tweak(node, macio_unknown,
 376                 HEATHROW_FCR,
 377                 HRW_SWIM_ENABLE|HRW_BAY_FLOPPY_ENABLE,
 378                 value);
 379 }
 380
 381 static long heathrow_mesh_enable(struct device_node *node, long param,
 382                                  long value)
 383 {
 384         struct macio_chip*      macio;
 385         unsigned long           flags;
 386
 387         macio = macio_find(node, macio_unknown);
 388         if (!macio)
 389                 return -ENODEV;
 390         LOCK(flags);
 391         /* Set clear mesh cell enable */
 392         if (value)
 393                 MACIO_BIS(HEATHROW_FCR, HRW_MESH_ENABLE);
 394         else
 395                 MACIO_BIC(HEATHROW_FCR, HRW_MESH_ENABLE);
 396         (void)MACIO_IN32(HEATHROW_FCR);
 397         udelay(10);
 398         /* Set/Clear termination power */
 399         if (value)
 400                 MACIO_BIC(HEATHROW_MBCR, 0x04000000);
 401         else
 402                 MACIO_BIS(HEATHROW_MBCR, 0x04000000);
 403         (void)MACIO_IN32(HEATHROW_MBCR);
 404         udelay(10);
 405         UNLOCK(flags);
 406
 407         return 0;
 408 }
 409
 410 static long heathrow_ide_enable(struct device_node *node, long param,
 411                                 long value)
 412 {
 413         switch(param) {
 414         case 0:
 415                 return simple_feature_tweak(node, macio_unknown,
 416                         HEATHROW_FCR, HRW_IDE0_ENABLE, value);
 417         case 1:
 418                 return simple_feature_tweak(node, macio_unknown,
 419                         HEATHROW_FCR, HRW_BAY_IDE_ENABLE, value);
 420         default:
 421                 return -ENODEV;
 422         }
 423 }
 424
 425 static long heathrow_ide_reset(struct device_node *node, long param,
 426                                long value)
 427 {
 428         switch(param) {
 429         case 0:
 430                 return simple_feature_tweak(node, macio_unknown,
 431                         HEATHROW_FCR, HRW_IDE0_RESET_N, !value);
 432         case 1:
 433                 return simple_feature_tweak(node, macio_unknown,
 434                         HEATHROW_FCR, HRW_IDE1_RESET_N, !value);
 435         default:
 436                 return -ENODEV;
 437         }
 438 }
 439
 440 static long heathrow_bmac_enable(struct device_node *node, long param,
 441                                  long value)
 442 {
 443         struct macio_chip*      macio;
 444         unsigned long           flags;
 445
 446         macio = macio_find(node, 0);
 447         if (!macio)
 448                 return -ENODEV;
 449         if (value) {
 450                 LOCK(flags);
 451                 MACIO_BIS(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
 452                 MACIO_BIS(HEATHROW_FCR, HRW_BMAC_RESET);
 453                 UNLOCK(flags);
 454                 (void)MACIO_IN32(HEATHROW_FCR);
 455                 mdelay(10);
 456                 LOCK(flags);
 457                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_RESET);
 458                 UNLOCK(flags);
 459                 (void)MACIO_IN32(HEATHROW_FCR);
 460                 mdelay(10);
 461         } else {
 462                 LOCK(flags);
 463                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE);
 464                 UNLOCK(flags);
 465         }
 466         return 0;
 467 }
 468
 469 static long heathrow_sound_enable(struct device_node *node, long param,
 470                                   long value)
 471 {
 472         struct macio_chip*      macio;
 473         unsigned long           flags;
 474
 475         /* B&W G3 and Yikes don't support that properly (the
 476          * sound appear to never come back after beeing shut down).
 477          */
 478         if (pmac_mb.model_id == PMAC_TYPE_YOSEMITE ||
 479             pmac_mb.model_id == PMAC_TYPE_YIKES)
 480                 return 0;
 481
 482         macio = macio_find(node, 0);
 483         if (!macio)
 484                 return -ENODEV;
 485         if (value) {
 486                 LOCK(flags);
 487                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 488                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
 489                 UNLOCK(flags);
 490                 (void)MACIO_IN32(HEATHROW_FCR);
 491         } else {
 492                 LOCK(flags);
 493                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
 494                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 495                 UNLOCK(flags);
 496         }
 497         return 0;
 498 }
 499
 500 static u32 save_fcr[6];
 501 static u32 save_mbcr;
 502 static u32 save_gpio_levels[2];
 503 static u8 save_gpio_extint[KEYLARGO_GPIO_EXTINT_CNT];
 504 static u8 save_gpio_normal[KEYLARGO_GPIO_CNT];
 505 static u32 save_unin_clock_ctl;
 506 static struct dbdma_regs save_dbdma[13];
 507 static struct dbdma_regs save_alt_dbdma[13];
 508
 509 static void dbdma_save(struct macio_chip *macio, struct dbdma_regs *save)
 510 {
 511         int i;
 512
 513         /* Save state & config of DBDMA channels */
 514         for (i = 0; i < 13; i++) {
 515                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
 516                         (macio->base + ((0x8000+i*0x100)>>2));
 517                 save[i].cmdptr_hi = in_le32(&chan->cmdptr_hi);
 518                 save[i].cmdptr = in_le32(&chan->cmdptr);
 519                 save[i].intr_sel = in_le32(&chan->intr_sel);
 520                 save[i].br_sel = in_le32(&chan->br_sel);
 521                 save[i].wait_sel = in_le32(&chan->wait_sel);
 522         }
 523 }
 524
 525 static void dbdma_restore(struct macio_chip *macio, struct dbdma_regs *save)
 526 {
 527         int i;
 528
 529         /* Save state & config of DBDMA channels */
 530         for (i = 0; i < 13; i++) {
 531                 volatile struct dbdma_regs __iomem * chan = (void __iomem *)
 532                         (macio->base + ((0x8000+i*0x100)>>2));
 533                 out_le32(&chan->control, (ACTIVE|DEAD|WAKE|FLUSH|PAUSE|RUN)<<16);
 534                 while (in_le32(&chan->status) & ACTIVE)
 535                         mb();
 536                 out_le32(&chan->cmdptr_hi, save[i].cmdptr_hi);
 537                 out_le32(&chan->cmdptr, save[i].cmdptr);
 538                 out_le32(&chan->intr_sel, save[i].intr_sel);
 539                 out_le32(&chan->br_sel, save[i].br_sel);
 540                 out_le32(&chan->wait_sel, save[i].wait_sel);
 541         }
 542 }
 543
 544 static void heathrow_sleep(struct macio_chip *macio, int secondary)
 545 {
 546         if (secondary) {
 547                 dbdma_save(macio, save_alt_dbdma);
 548                 save_fcr[2] = MACIO_IN32(0x38);
 549                 save_fcr[3] = MACIO_IN32(0x3c);
 550         } else {
 551                 dbdma_save(macio, save_dbdma);
 552                 save_fcr[0] = MACIO_IN32(0x38);
 553                 save_fcr[1] = MACIO_IN32(0x3c);
 554                 save_mbcr = MACIO_IN32(0x34);
 555                 /* Make sure sound is shut down */
 556                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_POWER_N);
 557                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
 558                 /* This seems to be necessary as well or the fan
 559                  * keeps coming up and battery drains fast */
 560                 MACIO_BIC(HEATHROW_FCR, HRW_IOBUS_ENABLE);
 561                 MACIO_BIC(HEATHROW_FCR, HRW_IDE0_RESET_N);
 562                 /* Make sure eth is down even if module or sleep
 563                  * won't work properly */
 564                 MACIO_BIC(HEATHROW_FCR, HRW_BMAC_IO_ENABLE | HRW_BMAC_RESET);
 565         }
 566         /* Make sure modem is shut down */
 567         MACIO_OUT8(HRW_GPIO_MODEM_RESET,
 568                 MACIO_IN8(HRW_GPIO_MODEM_RESET) & ~1);
 569         MACIO_BIS(HEATHROW_FCR, HRW_SCC_TRANS_EN_N);
 570         MACIO_BIC(HEATHROW_FCR, OH_SCCA_IO|OH_SCCB_IO|HRW_SCC_ENABLE);
 571
 572         /* Let things settle */
 573         (void)MACIO_IN32(HEATHROW_FCR);
 574 }
 575
 576 static void heathrow_wakeup(struct macio_chip *macio, int secondary)
 577 {
 578         if (secondary) {
 579                 MACIO_OUT32(0x38, save_fcr[2]);
 580                 (void)MACIO_IN32(0x38);
 581                 mdelay(1);
 582                 MACIO_OUT32(0x3c, save_fcr[3]);
 583                 (void)MACIO_IN32(0x38);
 584                 mdelay(10);
 585                 dbdma_restore(macio, save_alt_dbdma);
 586         } else {
 587                 MACIO_OUT32(0x38, save_fcr[0] | HRW_IOBUS_ENABLE);
 588                 (void)MACIO_IN32(0x38);
 589                 mdelay(1);
 590                 MACIO_OUT32(0x3c, save_fcr[1]);
 591                 (void)MACIO_IN32(0x38);
 592                 mdelay(1);
 593                 MACIO_OUT32(0x34, save_mbcr);
 594                 (void)MACIO_IN32(0x38);
 595                 mdelay(10);
 596                 dbdma_restore(macio, save_dbdma);
 597         }
 598 }
 599
 600 static long heathrow_sleep_state(struct device_node *node, long param,
 601                                  long value)
 602 {
 603         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
 604                 return -EPERM;
 605         if (value == 1) {
 606                 if (macio_chips[1].type == macio_gatwick)
 607                         heathrow_sleep(&macio_chips[0], 1);
 608                 heathrow_sleep(&macio_chips[0], 0);
 609         } else if (value == 0) {
 610                 heathrow_wakeup(&macio_chips[0], 0);
 611                 if (macio_chips[1].type == macio_gatwick)
 612                         heathrow_wakeup(&macio_chips[0], 1);
 613         }
 614         return 0;
 615 }
 616
 617 static long core99_scc_enable(struct device_node *node, long param, long value)
 618 {
 619         struct macio_chip*      macio;
 620         unsigned long           flags;
 621         unsigned long           chan_mask;
 622         u32                     fcr;
 623
 624         macio = macio_find(node, 0);
 625         if (!macio)
 626                 return -ENODEV;
 627         if (!strcmp(node->name, "ch-a"))
 628                 chan_mask = MACIO_FLAG_SCCA_ON;
 629         else if (!strcmp(node->name, "ch-b"))
 630                 chan_mask = MACIO_FLAG_SCCB_ON;
 631         else
 632                 return -ENODEV;
 633
 634         if (value) {
 635                 int need_reset_scc = 0;
 636                 int need_reset_irda = 0;
 637
 638                 LOCK(flags);
 639                 fcr = MACIO_IN32(KEYLARGO_FCR0);
 640                 /* Check if scc cell need enabling */
 641                 if (!(fcr & KL0_SCC_CELL_ENABLE)) {
 642                         fcr |= KL0_SCC_CELL_ENABLE;
 643                         need_reset_scc = 1;
 644                 }
 645                 if (chan_mask & MACIO_FLAG_SCCA_ON) {
 646                         fcr |= KL0_SCCA_ENABLE;
 647                         /* Don't enable line drivers for I2S modem */
 648                         if ((param & 0xfff) == PMAC_SCC_I2S1)
 649                                 fcr &= ~KL0_SCC_A_INTF_ENABLE;
 650                         else
 651                                 fcr |= KL0_SCC_A_INTF_ENABLE;
 652                 }
 653                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
 654                         fcr |= KL0_SCCB_ENABLE;
 655                         /* Perform irda specific inits */
 656                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
 657                                 fcr &= ~KL0_SCC_B_INTF_ENABLE;
 658                                 fcr |= KL0_IRDA_ENABLE;
 659                                 fcr |= KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE;
 660                                 fcr |= KL0_IRDA_SOURCE1_SEL;
 661                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
 662                                 fcr &= ~(KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
 663                                 need_reset_irda = 1;
 664                         } else
 665                                 fcr |= KL0_SCC_B_INTF_ENABLE;
 666                 }
 667                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
 668                 macio->flags |= chan_mask;
 669                 if (need_reset_scc)  {
 670                         MACIO_BIS(KEYLARGO_FCR0, KL0_SCC_RESET);
 671                         (void)MACIO_IN32(KEYLARGO_FCR0);
 672                         UNLOCK(flags);
 673                         mdelay(15);
 674                         LOCK(flags);
 675                         MACIO_BIC(KEYLARGO_FCR0, KL0_SCC_RESET);
 676                 }
 677                 if (need_reset_irda)  {
 678                         MACIO_BIS(KEYLARGO_FCR0, KL0_IRDA_RESET);
 679                         (void)MACIO_IN32(KEYLARGO_FCR0);
 680                         UNLOCK(flags);
 681                         mdelay(15);
 682                         LOCK(flags);
 683                         MACIO_BIC(KEYLARGO_FCR0, KL0_IRDA_RESET);
 684                 }
 685                 UNLOCK(flags);
 686                 if (param & PMAC_SCC_FLAG_XMON)
 687                         macio->flags |= MACIO_FLAG_SCC_LOCKED;
 688         } else {
 689                 if (macio->flags & MACIO_FLAG_SCC_LOCKED)
 690                         return -EPERM;
 691                 LOCK(flags);
 692                 fcr = MACIO_IN32(KEYLARGO_FCR0);
 693                 if (chan_mask & MACIO_FLAG_SCCA_ON)
 694                         fcr &= ~KL0_SCCA_ENABLE;
 695                 if (chan_mask & MACIO_FLAG_SCCB_ON) {
 696                         fcr &= ~KL0_SCCB_ENABLE;
 697                         /* Perform irda specific clears */
 698                         if ((param & 0xfff) == PMAC_SCC_IRDA) {
 699                                 fcr &= ~KL0_IRDA_ENABLE;
 700                                 fcr &= ~(KL0_IRDA_CLK32_ENABLE | KL0_IRDA_CLK19_ENABLE);
 701                                 fcr &= ~(KL0_IRDA_FAST_CONNECT|KL0_IRDA_DEFAULT1|KL0_IRDA_DEFAULT0);
 702                                 fcr &= ~(KL0_IRDA_SOURCE1_SEL|KL0_IRDA_SOURCE2_SEL|KL0_IRDA_HIGH_BAND);
 703                         }
 704                 }
 705                 MACIO_OUT32(KEYLARGO_FCR0, fcr);
 706                 if ((fcr & (KL0_SCCA_ENABLE | KL0_SCCB_ENABLE)) == 0) {
 707                         fcr &= ~KL0_SCC_CELL_ENABLE;
 708                         MACIO_OUT32(KEYLARGO_FCR0, fcr);
 709                 }
 710                 macio->flags &= ~(chan_mask);
 711                 UNLOCK(flags);
 712                 mdelay(10);
 713         }
 714         return 0;
 715 }
 716
 717 static long
 718 core99_modem_enable(struct device_node *node, long param, long value)
 719 {
 720         struct macio_chip*      macio;
 721         u8                      gpio;
 722         unsigned long           flags;
 723
 724         /* Hack for internal USB modem */
 725         if (node == NULL) {
 726                 if (macio_chips[0].type != macio_keylargo)
 727                         return -ENODEV;
 728                 node = macio_chips[0].of_node;
 729         }
 730         macio = macio_find(node, 0);
 731         if (!macio)
 732                 return -ENODEV;
 733         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
 734         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
 735         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
 736
 737         if (!value) {
 738                 LOCK(flags);
 739                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 740                 UNLOCK(flags);
 741                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 742                 mdelay(250);
 743         }
 744         LOCK(flags);
 745         if (value) {
 746                 MACIO_BIC(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
 747                 UNLOCK(flags);
 748                 (void)MACIO_IN32(KEYLARGO_FCR2);
 749                 mdelay(250);
 750         } else {
 751                 MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
 752                 UNLOCK(flags);
 753         }
 754         if (value) {
 755                 LOCK(flags);
 756                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 757                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 758                 UNLOCK(flags); mdelay(250); LOCK(flags);
 759                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 760                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 761                 UNLOCK(flags); mdelay(250); LOCK(flags);
 762                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 763                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 764                 UNLOCK(flags); mdelay(250);
 765         }
 766         return 0;
 767 }
 768
 769 static long
 770 pangea_modem_enable(struct device_node *node, long param, long value)
 771 {
 772         struct macio_chip*      macio;
 773         u8                      gpio;
 774         unsigned long           flags;
 775
 776         /* Hack for internal USB modem */
 777         if (node == NULL) {
 778                 if (macio_chips[0].type != macio_pangea &&
 779                     macio_chips[0].type != macio_intrepid)
 780                         return -ENODEV;
 781                 node = macio_chips[0].of_node;
 782         }
 783         macio = macio_find(node, 0);
 784         if (!macio)
 785                 return -ENODEV;
 786         gpio = MACIO_IN8(KL_GPIO_MODEM_RESET);
 787         gpio |= KEYLARGO_GPIO_OUTPUT_ENABLE;
 788         gpio &= ~KEYLARGO_GPIO_OUTOUT_DATA;
 789
 790         if (!value) {
 791                 LOCK(flags);
 792                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 793                 UNLOCK(flags);
 794                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 795                 mdelay(250);
 796         }
 797         LOCK(flags);
 798         if (value) {
 799                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
 800                         KEYLARGO_GPIO_OUTPUT_ENABLE);
 801                 UNLOCK(flags);
 802                 (void)MACIO_IN32(KEYLARGO_FCR2);
 803                 mdelay(250);
 804         } else {
 805                 MACIO_OUT8(KL_GPIO_MODEM_POWER,
 806                         KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
 807                 UNLOCK(flags);
 808         }
 809         if (value) {
 810                 LOCK(flags);
 811                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 812                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 813                 UNLOCK(flags); mdelay(250); LOCK(flags);
 814                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio);
 815                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 816                 UNLOCK(flags); mdelay(250); LOCK(flags);
 817                 MACIO_OUT8(KL_GPIO_MODEM_RESET, gpio | KEYLARGO_GPIO_OUTOUT_DATA);
 818                 (void)MACIO_IN8(KL_GPIO_MODEM_RESET);
 819                 UNLOCK(flags); mdelay(250);
 820         }
 821         return 0;
 822 }
 823
 824 static long
 825 core99_ata100_enable(struct device_node *node, long value)
 826 {
 827         unsigned long flags;
 828         struct pci_dev *pdev = NULL;
 829         u8 pbus, pid;
 830
 831         if (uninorth_rev < 0x24)
 832                 return -ENODEV;
 833
 834         LOCK(flags);
 835         if (value)
 836                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
 837         else
 838                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_ATA100);
 839         (void)UN_IN(UNI_N_CLOCK_CNTL);
 840         UNLOCK(flags);
 841         udelay(20);
 842
 843         if (value) {
 844                 if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
 845                         pdev = pci_find_slot(pbus, pid);
 846                 if (pdev == NULL)
 847                         return 0;
 848                 pci_enable_device(pdev);
 849                 pci_set_master(pdev);
 850         }
 851         return 0;
 852 }
 853
 854 static long
 855 core99_ide_enable(struct device_node *node, long param, long value)
 856 {
 857         /* Bus ID 0 to 2 are KeyLargo based IDE, busID 3 is U2
 858          * based ata-100
 859          */
 860         switch(param) {
 861             case 0:
 862                 return simple_feature_tweak(node, macio_unknown,
 863                         KEYLARGO_FCR1, KL1_EIDE0_ENABLE, value);
 864             case 1:
 865                 return simple_feature_tweak(node, macio_unknown,
 866                         KEYLARGO_FCR1, KL1_EIDE1_ENABLE, value);
 867             case 2:
 868                 return simple_feature_tweak(node, macio_unknown,
 869                         KEYLARGO_FCR1, KL1_UIDE_ENABLE, value);
 870             case 3:
 871                 return core99_ata100_enable(node, value);
 872             default:
 873                 return -ENODEV;
 874         }
 875 }
 876
 877 static long
 878 core99_ide_reset(struct device_node *node, long param, long value)
 879 {
 880         switch(param) {
 881             case 0:
 882                 return simple_feature_tweak(node, macio_unknown,
 883                         KEYLARGO_FCR1, KL1_EIDE0_RESET_N, !value);
 884             case 1:
 885                 return simple_feature_tweak(node, macio_unknown,
 886                         KEYLARGO_FCR1, KL1_EIDE1_RESET_N, !value);
 887             case 2:
 888                 return simple_feature_tweak(node, macio_unknown,
 889                         KEYLARGO_FCR1, KL1_UIDE_RESET_N, !value);
 890             default:
 891                 return -ENODEV;
 892         }
 893 }
 894
 895 static long
 896 core99_gmac_enable(struct device_node *node, long param, long value)
 897 {
 898         unsigned long flags;
 899
 900         LOCK(flags);
 901         if (value)
 902                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
 903         else
 904                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_GMAC);
 905         (void)UN_IN(UNI_N_CLOCK_CNTL);
 906         UNLOCK(flags);
 907         udelay(20);
 908
 909         return 0;
 910 }
 911
 912 static long
 913 core99_gmac_phy_reset(struct device_node *node, long param, long value)
 914 {
 915         unsigned long flags;
 916         struct macio_chip *macio;
 917
 918         macio = &macio_chips[0];
 919         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
 920             macio->type != macio_intrepid)
 921                 return -ENODEV;
 922
 923         LOCK(flags);
 924         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, KEYLARGO_GPIO_OUTPUT_ENABLE);
 925         (void)MACIO_IN8(KL_GPIO_ETH_PHY_RESET);
 926         UNLOCK(flags);
 927         mdelay(10);
 928         LOCK(flags);
 929         MACIO_OUT8(KL_GPIO_ETH_PHY_RESET, /*KEYLARGO_GPIO_OUTPUT_ENABLE | */
 930                 KEYLARGO_GPIO_OUTOUT_DATA);
 931         UNLOCK(flags);
 932         mdelay(10);
 933
 934         return 0;
 935 }
 936
 937 static long
 938 core99_sound_chip_enable(struct device_node *node, long param, long value)
 939 {
 940         struct macio_chip*      macio;
 941         unsigned long           flags;
 942
 943         macio = macio_find(node, 0);
 944         if (!macio)
 945                 return -ENODEV;
 946
 947         /* Do a better probe code, screamer G4 desktops &
 948          * iMacs can do that too, add a recalibrate  in
 949          * the driver as well
 950          */
 951         if (pmac_mb.model_id == PMAC_TYPE_PISMO ||
 952             pmac_mb.model_id == PMAC_TYPE_TITANIUM) {
 953                 LOCK(flags);
 954                 if (value)
 955                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
 956                                 KEYLARGO_GPIO_OUTPUT_ENABLE |
 957                                 KEYLARGO_GPIO_OUTOUT_DATA);
 958                 else
 959                         MACIO_OUT8(KL_GPIO_SOUND_POWER,
 960                                 KEYLARGO_GPIO_OUTPUT_ENABLE);
 961                 (void)MACIO_IN8(KL_GPIO_SOUND_POWER);
 962                 UNLOCK(flags);
 963         }
 964         return 0;
 965 }
 966
 967 static long
 968 core99_airport_enable(struct device_node *node, long param, long value)
 969 {
 970         struct macio_chip*      macio;
 971         unsigned long           flags;
 972         int                     state;
 973
 974         macio = macio_find(node, 0);
 975         if (!macio)
 976                 return -ENODEV;
 977
 978         /* Hint: we allow passing of macio itself for the sake of the
 979          * sleep code
 980          */
 981         if (node != macio->of_node &&
 982             (!node->parent || node->parent != macio->of_node))
 983                 return -ENODEV;
 984         state = (macio->flags & MACIO_FLAG_AIRPORT_ON) != 0;
 985         if (value == state)
 986                 return 0;
 987         if (value) {
 988                 /* This code is a reproduction of OF enable-cardslot
 989                  * and init-wireless methods, slightly hacked until
 990                  * I got it working.
 991                  */
 992                 LOCK(flags);
 993                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 5);
 994                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
 995                 UNLOCK(flags);
 996                 mdelay(10);
 997                 LOCK(flags);
 998                 MACIO_OUT8(KEYLARGO_GPIO_0+0xf, 4);
 999                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xf);
1000                 UNLOCK(flags);
1001
1002                 mdelay(10);
1003
1004                 LOCK(flags);
1005                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1006                 (void)MACIO_IN32(KEYLARGO_FCR2);
1007                 udelay(10);
1008                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xb, 0);
1009                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xb);
1010                 udelay(10);
1011                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xa, 0x28);
1012                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xa);
1013                 udelay(10);
1014                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+0xd, 0x28);
1015                 (void)MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+0xd);
1016                 udelay(10);
1017                 MACIO_OUT8(KEYLARGO_GPIO_0+0xd, 0x28);
1018                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xd);
1019                 udelay(10);
1020                 MACIO_OUT8(KEYLARGO_GPIO_0+0xe, 0x28);
1021                 (void)MACIO_IN8(KEYLARGO_GPIO_0+0xe);
1022                 UNLOCK(flags);
1023                 udelay(10);
1024                 MACIO_OUT32(0x1c000, 0);
1025                 mdelay(1);
1026                 MACIO_OUT8(0x1a3e0, 0x41);
1027                 (void)MACIO_IN8(0x1a3e0);
1028                 udelay(10);
1029                 LOCK(flags);
1030                 MACIO_BIS(KEYLARGO_FCR2, KL2_CARDSEL_16);
1031                 (void)MACIO_IN32(KEYLARGO_FCR2);
1032                 UNLOCK(flags);
1033                 mdelay(100);
1034
1035                 macio->flags |= MACIO_FLAG_AIRPORT_ON;
1036         } else {
1037                 LOCK(flags);
1038                 MACIO_BIC(KEYLARGO_FCR2, KL2_CARDSEL_16);
1039                 (void)MACIO_IN32(KEYLARGO_FCR2);
1040                 MACIO_OUT8(KL_GPIO_AIRPORT_0, 0);
1041                 MACIO_OUT8(KL_GPIO_AIRPORT_1, 0);
1042                 MACIO_OUT8(KL_GPIO_AIRPORT_2, 0);
1043                 MACIO_OUT8(KL_GPIO_AIRPORT_3, 0);
1044                 MACIO_OUT8(KL_GPIO_AIRPORT_4, 0);
1045                 (void)MACIO_IN8(KL_GPIO_AIRPORT_4);
1046                 UNLOCK(flags);
1047
1048                 macio->flags &= ~MACIO_FLAG_AIRPORT_ON;
1049         }
1050         return 0;
1051 }
1052
1053 #ifdef CONFIG_SMP
1054 static long
1055 core99_reset_cpu(struct device_node *node, long param, long value)
1056 {
1057         unsigned int reset_io = 0;
1058         unsigned long flags;
1059         struct macio_chip *macio;
1060         struct device_node *np;
1061         const int dflt_reset_lines[] = {        KL_GPIO_RESET_CPU0,
1062                                                 KL_GPIO_RESET_CPU1,
1063                                                 KL_GPIO_RESET_CPU2,
1064                                                 KL_GPIO_RESET_CPU3 };
1065
1066         macio = &macio_chips[0];
1067         if (macio->type != macio_keylargo)
1068                 return -ENODEV;
1069
1070         np = find_path_device("/cpus");
1071         if (np == NULL)
1072                 return -ENODEV;
1073         for (np = np->child; np != NULL; np = np->sibling) {
1074                 u32 *num = (u32 *)get_property(np, "reg", NULL);
1075                 u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
1076                 if (num == NULL || rst == NULL)
1077                         continue;
1078                 if (param == *num) {
1079                         reset_io = *rst;
1080                         break;
1081                 }
1082         }
1083         if (np == NULL || reset_io == 0)
1084                 reset_io = dflt_reset_lines[param];
1085
1086         LOCK(flags);
1087         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1088         (void)MACIO_IN8(reset_io);
1089         udelay(1);
1090         MACIO_OUT8(reset_io, 0);
1091         (void)MACIO_IN8(reset_io);
1092         UNLOCK(flags);
1093
1094         return 0;
1095 }
1096 #endif /* CONFIG_SMP */
1097
1098 static long
1099 core99_usb_enable(struct device_node *node, long param, long value)
1100 {
1101         struct macio_chip *macio;
1102         unsigned long flags;
1103         char *prop;
1104         int number;
1105         u32 reg;
1106
1107         macio = &macio_chips[0];
1108         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1109             macio->type != macio_intrepid)
1110                 return -ENODEV;
1111
1112         prop = (char *)get_property(node, "AAPL,clock-id", NULL);
1113         if (!prop)
1114                 return -ENODEV;
1115         if (strncmp(prop, "usb0u048", 8) == 0)
1116                 number = 0;
1117         else if (strncmp(prop, "usb1u148", 8) == 0)
1118                 number = 2;
1119         else if (strncmp(prop, "usb2u248", 8) == 0)
1120                 number = 4;
1121         else
1122                 return -ENODEV;
1123
1124         /* Sorry for the brute-force locking, but this is only used during
1125          * sleep and the timing seem to be critical
1126          */
1127         LOCK(flags);
1128         if (value) {
1129                 /* Turn ON */
1130                 if (number == 0) {
1131                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1132                         (void)MACIO_IN32(KEYLARGO_FCR0);
1133                         UNLOCK(flags);
1134                         mdelay(1);
1135                         LOCK(flags);
1136                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1137                 } else if (number == 2) {
1138                         MACIO_BIC(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1139                         UNLOCK(flags);
1140                         (void)MACIO_IN32(KEYLARGO_FCR0);
1141                         mdelay(1);
1142                         LOCK(flags);
1143                         MACIO_BIS(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1144                 } else if (number == 4) {
1145                         MACIO_BIC(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1146                         UNLOCK(flags);
1147                         (void)MACIO_IN32(KEYLARGO_FCR1);
1148                         mdelay(1);
1149                         LOCK(flags);
1150                         MACIO_BIS(KEYLARGO_FCR1, KL1_USB2_CELL_ENABLE);
1151                 }
1152                 if (number < 4) {
1153                         reg = MACIO_IN32(KEYLARGO_FCR4);
1154                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1155                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number));
1156                         reg &=  ~(KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1157                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1));
1158                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1159                         (void)MACIO_IN32(KEYLARGO_FCR4);
1160                         udelay(10);
1161                 } else {
1162                         reg = MACIO_IN32(KEYLARGO_FCR3);
1163                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1164                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0));
1165                         reg &=  ~(KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1166                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1));
1167                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1168                         (void)MACIO_IN32(KEYLARGO_FCR3);
1169                         udelay(10);
1170                 }
1171                 if (macio->type == macio_intrepid) {
1172                         /* wait for clock stopped bits to clear */
1173                         u32 test0 = 0, test1 = 0;
1174                         u32 status0, status1;
1175                         int timeout = 1000;
1176
1177                         UNLOCK(flags);
1178                         switch (number) {
1179                         case 0:
1180                                 test0 = UNI_N_CLOCK_STOPPED_USB0;
1181                                 test1 = UNI_N_CLOCK_STOPPED_USB0PCI;
1182                                 break;
1183                         case 2:
1184                                 test0 = UNI_N_CLOCK_STOPPED_USB1;
1185                                 test1 = UNI_N_CLOCK_STOPPED_USB1PCI;
1186                                 break;
1187                         case 4:
1188                                 test0 = UNI_N_CLOCK_STOPPED_USB2;
1189                                 test1 = UNI_N_CLOCK_STOPPED_USB2PCI;
1190                                 break;
1191                         }
1192                         do {
1193                                 if (--timeout <= 0) {
1194                                         printk(KERN_ERR "core99_usb_enable: "
1195                                                "Timeout waiting for clocks\n");
1196                                         break;
1197                                 }
1198                                 mdelay(1);
1199                                 status0 = UN_IN(UNI_N_CLOCK_STOP_STATUS0);
1200                                 status1 = UN_IN(UNI_N_CLOCK_STOP_STATUS1);
1201                         } while ((status0 & test0) | (status1 & test1));
1202                         LOCK(flags);
1203                 }
1204         } else {
1205                 /* Turn OFF */
1206                 if (number < 4) {
1207                         reg = MACIO_IN32(KEYLARGO_FCR4);
1208                         reg |=  KL4_PORT_WAKEUP_ENABLE(number) | KL4_PORT_RESUME_WAKE_EN(number) |
1209                                 KL4_PORT_CONNECT_WAKE_EN(number) | KL4_PORT_DISCONNECT_WAKE_EN(number);
1210                         reg |=  KL4_PORT_WAKEUP_ENABLE(number+1) | KL4_PORT_RESUME_WAKE_EN(number+1) |
1211                                 KL4_PORT_CONNECT_WAKE_EN(number+1) | KL4_PORT_DISCONNECT_WAKE_EN(number+1);
1212                         MACIO_OUT32(KEYLARGO_FCR4, reg);
1213                         (void)MACIO_IN32(KEYLARGO_FCR4);
1214                         udelay(1);
1215                 } else {
1216                         reg = MACIO_IN32(KEYLARGO_FCR3);
1217                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(0) | KL3_IT_PORT_RESUME_WAKE_EN(0) |
1218                                 KL3_IT_PORT_CONNECT_WAKE_EN(0) | KL3_IT_PORT_DISCONNECT_WAKE_EN(0);
1219                         reg |=  KL3_IT_PORT_WAKEUP_ENABLE(1) | KL3_IT_PORT_RESUME_WAKE_EN(1) |
1220                                 KL3_IT_PORT_CONNECT_WAKE_EN(1) | KL3_IT_PORT_DISCONNECT_WAKE_EN(1);
1221                         MACIO_OUT32(KEYLARGO_FCR3, reg);
1222                         (void)MACIO_IN32(KEYLARGO_FCR3);
1223                         udelay(1);
1224                 }
1225                 if (number == 0) {
1226                         if (macio->type != macio_intrepid)
1227                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB0_CELL_ENABLE);
1228                         (void)MACIO_IN32(KEYLARGO_FCR0);
1229                         udelay(1);
1230                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB0_PAD_SUSPEND0 | KL0_USB0_PAD_SUSPEND1));
1231                         (void)MACIO_IN32(KEYLARGO_FCR0);
1232                 } else if (number == 2) {
1233                         if (macio->type != macio_intrepid)
1234                                 MACIO_BIC(KEYLARGO_FCR0, KL0_USB1_CELL_ENABLE);
1235                         (void)MACIO_IN32(KEYLARGO_FCR0);
1236                         udelay(1);
1237                         MACIO_BIS(KEYLARGO_FCR0, (KL0_USB1_PAD_SUSPEND0 | KL0_USB1_PAD_SUSPEND1));
1238                         (void)MACIO_IN32(KEYLARGO_FCR0);
1239                 } else if (number == 4) {
1240                         udelay(1);
1241                         MACIO_BIS(KEYLARGO_FCR1, (KL1_USB2_PAD_SUSPEND0 | KL1_USB2_PAD_SUSPEND1));
1242                         (void)MACIO_IN32(KEYLARGO_FCR1);
1243                 }
1244                 udelay(1);
1245         }
1246         UNLOCK(flags);
1247
1248         return 0;
1249 }
1250
1251 static long
1252 core99_firewire_enable(struct device_node *node, long param, long value)
1253 {
1254         unsigned long flags;
1255         struct macio_chip *macio;
1256
1257         macio = &macio_chips[0];
1258         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1259             macio->type != macio_intrepid)
1260                 return -ENODEV;
1261         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1262                 return -ENODEV;
1263
1264         LOCK(flags);
1265         if (value) {
1266                 UN_BIS(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1267                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1268         } else {
1269                 UN_BIC(UNI_N_CLOCK_CNTL, UNI_N_CLOCK_CNTL_FW);
1270                 (void)UN_IN(UNI_N_CLOCK_CNTL);
1271         }
1272         UNLOCK(flags);
1273         mdelay(1);
1274
1275         return 0;
1276 }
1277
1278 static long
1279 core99_firewire_cable_power(struct device_node *node, long param, long value)
1280 {
1281         unsigned long flags;
1282         struct macio_chip *macio;
1283
1284         /* Trick: we allow NULL node */
1285         if ((pmac_mb.board_flags & PMAC_MB_HAS_FW_POWER) == 0)
1286                 return -ENODEV;
1287         macio = &macio_chips[0];
1288         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1289             macio->type != macio_intrepid)
1290                 return -ENODEV;
1291         if (!(macio->flags & MACIO_FLAG_FW_SUPPORTED))
1292                 return -ENODEV;
1293
1294         LOCK(flags);
1295         if (value) {
1296                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 0);
1297                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER);
1298                 udelay(10);
1299         } else {
1300                 MACIO_OUT8(KL_GPIO_FW_CABLE_POWER , 4);
1301                 MACIO_IN8(KL_GPIO_FW_CABLE_POWER); udelay(10);
1302         }
1303         UNLOCK(flags);
1304         mdelay(1);
1305
1306         return 0;
1307 }
1308
1309 static long
1310 intrepid_aack_delay_enable(struct device_node *node, long param, long value)
1311 {
1312         unsigned long flags;
1313
1314         if (uninorth_rev < 0xd2)
1315                 return -ENODEV;
1316
1317         LOCK(flags);
1318         if (param)
1319                 UN_BIS(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1320         else
1321                 UN_BIC(UNI_N_AACK_DELAY, UNI_N_AACK_DELAY_ENABLE);
1322         UNLOCK(flags);
1323
1324         return 0;
1325 }
1326
1327
1328 #endif /* CONFIG_POWER4 */
1329
1330 static long
1331 core99_read_gpio(struct device_node *node, long param, long value)
1332 {
1333         struct macio_chip *macio = &macio_chips[0];
1334
1335         return MACIO_IN8(param);
1336 }
1337
1338
1339 static long
1340 core99_write_gpio(struct device_node *node, long param, long value)
1341 {
1342         struct macio_chip *macio = &macio_chips[0];
1343
1344         MACIO_OUT8(param, (u8)(value & 0xff));
1345         return 0;
1346 }
1347
1348 #ifdef CONFIG_POWER4
1349 static long g5_gmac_enable(struct device_node *node, long param, long value)
1350 {
1351         struct macio_chip *macio = &macio_chips[0];
1352         unsigned long flags;
1353
1354         if (node == NULL)
1355                 return -ENODEV;
1356
1357         LOCK(flags);
1358         if (value) {
1359                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1360                 mb();
1361                 k2_skiplist[0] = NULL;
1362         } else {
1363                 k2_skiplist[0] = node;
1364                 mb();
1365                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_GMAC_CLK_ENABLE);
1366         }
1367
1368         UNLOCK(flags);
1369         mdelay(1);
1370
1371         return 0;
1372 }
1373
1374 static long g5_fw_enable(struct device_node *node, long param, long value)
1375 {
1376         struct macio_chip *macio = &macio_chips[0];
1377         unsigned long flags;
1378
1379         if (node == NULL)
1380                 return -ENODEV;
1381
1382         LOCK(flags);
1383         if (value) {
1384                 MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1385                 mb();
1386                 k2_skiplist[1] = NULL;
1387         } else {
1388                 k2_skiplist[1] = node;
1389                 mb();
1390                 MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_FW_CLK_ENABLE);
1391         }
1392
1393         UNLOCK(flags);
1394         mdelay(1);
1395
1396         return 0;
1397 }
1398
1399 static long g5_mpic_enable(struct device_node *node, long param, long value)
1400 {
1401         unsigned long flags;
1402
1403         if (node->parent == NULL || strcmp(node->parent->name, "u3"))
1404                 return 0;
1405
1406         LOCK(flags);
1407         UN_BIS(U3_TOGGLE_REG, U3_MPIC_RESET | U3_MPIC_OUTPUT_ENABLE);
1408         UNLOCK(flags);
1409
1410         return 0;
1411 }
1412
1413 static long g5_eth_phy_reset(struct device_node *node, long param, long value)
1414 {
1415         struct macio_chip *macio = &macio_chips[0];
1416         struct device_node *phy;
1417         int need_reset;
1418
1419         /*
1420          * We must not reset the combo PHYs, only the BCM5221 found in
1421          * the iMac G5.
1422          */
1423         phy = of_get_next_child(node, NULL);
1424         if (!phy)
1425                 return -ENODEV;
1426         need_reset = device_is_compatible(phy, "B5221");
1427         of_node_put(phy);
1428         if (!need_reset)
1429                 return 0;
1430
1431         /* PHY reset is GPIO 29, not in device-tree unfortunately */
1432         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29,
1433                    KEYLARGO_GPIO_OUTPUT_ENABLE | KEYLARGO_GPIO_OUTOUT_DATA);
1434         /* Thankfully, this is now always called at a time when we can
1435          * schedule by sungem.
1436          */
1437         msleep(10);
1438         MACIO_OUT8(K2_GPIO_EXTINT_0 + 29, 0);
1439
1440         return 0;
1441 }
1442
1443 static long g5_i2s_enable(struct device_node *node, long param, long value)
1444 {
1445         /* Very crude implementation for now */
1446         struct macio_chip *macio = &macio_chips[0];
1447         unsigned long flags;
1448
1449         if (value == 0)
1450                 return 0; /* don't disable yet */
1451
1452         LOCK(flags);
1453         MACIO_BIS(KEYLARGO_FCR3, KL3_CLK45_ENABLE | KL3_CLK49_ENABLE |
1454                   KL3_I2S0_CLK18_ENABLE);
1455         udelay(10);
1456         MACIO_BIS(KEYLARGO_FCR1, K2_FCR1_I2S0_CELL_ENABLE |
1457                   K2_FCR1_I2S0_CLK_ENABLE_BIT | K2_FCR1_I2S0_ENABLE);
1458         udelay(10);
1459         MACIO_BIC(KEYLARGO_FCR1, K2_FCR1_I2S0_RESET);
1460         UNLOCK(flags);
1461         udelay(10);
1462
1463         return 0;
1464 }
1465
1466
1467 #ifdef CONFIG_SMP
1468 static long g5_reset_cpu(struct device_node *node, long param, long value)
1469 {
1470         unsigned int reset_io = 0;
1471         unsigned long flags;
1472         struct macio_chip *macio;
1473         struct device_node *np;
1474
1475         macio = &macio_chips[0];
1476         if (macio->type != macio_keylargo2)
1477                 return -ENODEV;
1478
1479         np = find_path_device("/cpus");
1480         if (np == NULL)
1481                 return -ENODEV;
1482         for (np = np->child; np != NULL; np = np->sibling) {
1483                 u32 *num = (u32 *)get_property(np, "reg", NULL);
1484                 u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
1485                 if (num == NULL || rst == NULL)
1486                         continue;
1487                 if (param == *num) {
1488                         reset_io = *rst;
1489                         break;
1490                 }
1491         }
1492         if (np == NULL || reset_io == 0)
1493                 return -ENODEV;
1494
1495         LOCK(flags);
1496         MACIO_OUT8(reset_io, KEYLARGO_GPIO_OUTPUT_ENABLE);
1497         (void)MACIO_IN8(reset_io);
1498         udelay(1);
1499         MACIO_OUT8(reset_io, 0);
1500         (void)MACIO_IN8(reset_io);
1501         UNLOCK(flags);
1502
1503         return 0;
1504 }
1505 #endif /* CONFIG_SMP */
1506
1507 /*
1508  * This can be called from pmac_smp so isn't static
1509  *
1510  * This takes the second CPU off the bus on dual CPU machines
1511  * running UP
1512  */
1513 void g5_phy_disable_cpu1(void)
1514 {
1515         UN_OUT(U3_API_PHY_CONFIG_1, 0);
1516 }
1517 #endif /* CONFIG_POWER4 */
1518
1519 #ifndef CONFIG_POWER4
1520
1521 static void
1522 keylargo_shutdown(struct macio_chip *macio, int sleep_mode)
1523 {
1524         u32 temp;
1525
1526         if (sleep_mode) {
1527                 mdelay(1);
1528                 MACIO_BIS(KEYLARGO_FCR0, KL0_USB_REF_SUSPEND);
1529                 (void)MACIO_IN32(KEYLARGO_FCR0);
1530                 mdelay(1);
1531         }
1532
1533         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1534                                 KL0_SCC_CELL_ENABLE |
1535                                 KL0_IRDA_ENABLE | KL0_IRDA_CLK32_ENABLE |
1536                                 KL0_IRDA_CLK19_ENABLE);
1537
1538         MACIO_BIC(KEYLARGO_MBCR, KL_MBCR_MB0_DEV_MASK);
1539         MACIO_BIS(KEYLARGO_MBCR, KL_MBCR_MB0_IDE_ENABLE);
1540
1541         MACIO_BIC(KEYLARGO_FCR1,
1542                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1543                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1544                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1545                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1546                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1547                 KL1_EIDE0_ENABLE | KL1_EIDE0_RESET_N |
1548                 KL1_EIDE1_ENABLE | KL1_EIDE1_RESET_N |
1549                 KL1_UIDE_ENABLE);
1550
1551         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1552         MACIO_BIC(KEYLARGO_FCR2, KL2_IOBUS_ENABLE);
1553
1554         temp = MACIO_IN32(KEYLARGO_FCR3);
1555         if (macio->rev >= 2) {
1556                 temp |= KL3_SHUTDOWN_PLL2X;
1557                 if (sleep_mode)
1558                         temp |= KL3_SHUTDOWN_PLL_TOTAL;
1559         }
1560
1561         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1562                 KL3_SHUTDOWN_PLLKW35;
1563         if (sleep_mode)
1564                 temp |= KL3_SHUTDOWN_PLLKW12;
1565         temp &= ~(KL3_CLK66_ENABLE | KL3_CLK49_ENABLE | KL3_CLK45_ENABLE
1566                 | KL3_CLK31_ENABLE | KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1567         if (sleep_mode)
1568                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_VIA_CLK16_ENABLE);
1569         MACIO_OUT32(KEYLARGO_FCR3, temp);
1570
1571         /* Flush posted writes & wait a bit */
1572         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1573 }
1574
1575 static void
1576 pangea_shutdown(struct macio_chip *macio, int sleep_mode)
1577 {
1578         u32 temp;
1579
1580         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1581                                 KL0_SCC_CELL_ENABLE |
1582                                 KL0_USB0_CELL_ENABLE | KL0_USB1_CELL_ENABLE);
1583
1584         MACIO_BIC(KEYLARGO_FCR1,
1585                 KL1_AUDIO_SEL_22MCLK | KL1_AUDIO_CLK_ENABLE_BIT |
1586                 KL1_AUDIO_CLK_OUT_ENABLE | KL1_AUDIO_CELL_ENABLE |
1587                 KL1_I2S0_CELL_ENABLE | KL1_I2S0_CLK_ENABLE_BIT |
1588                 KL1_I2S0_ENABLE | KL1_I2S1_CELL_ENABLE |
1589                 KL1_I2S1_CLK_ENABLE_BIT | KL1_I2S1_ENABLE |
1590                 KL1_UIDE_ENABLE);
1591         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1592                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1593
1594         MACIO_BIS(KEYLARGO_FCR2, KL2_ALT_DATA_OUT);
1595
1596         temp = MACIO_IN32(KEYLARGO_FCR3);
1597         temp |= KL3_SHUTDOWN_PLLKW6 | KL3_SHUTDOWN_PLLKW4 |
1598                 KL3_SHUTDOWN_PLLKW35;
1599         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE | KL3_CLK31_ENABLE
1600                 | KL3_I2S0_CLK18_ENABLE | KL3_I2S1_CLK18_ENABLE);
1601         if (sleep_mode)
1602                 temp &= ~(KL3_VIA_CLK16_ENABLE | KL3_TIMER_CLK18_ENABLE);
1603         MACIO_OUT32(KEYLARGO_FCR3, temp);
1604
1605         /* Flush posted writes & wait a bit */
1606         (void)MACIO_IN32(KEYLARGO_FCR0); mdelay(1);
1607 }
1608
1609 static void
1610 intrepid_shutdown(struct macio_chip *macio, int sleep_mode)
1611 {
1612         u32 temp;
1613
1614         MACIO_BIC(KEYLARGO_FCR0,KL0_SCCA_ENABLE | KL0_SCCB_ENABLE |
1615                   KL0_SCC_CELL_ENABLE);
1616
1617         MACIO_BIC(KEYLARGO_FCR1,
1618                   /*KL1_USB2_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         if (pmac_mb.board_flags & PMAC_MB_MOBILE)
1623                 MACIO_BIC(KEYLARGO_FCR1, KL1_UIDE_RESET_N);
1624
1625         temp = MACIO_IN32(KEYLARGO_FCR3);
1626         temp &= ~(KL3_CLK49_ENABLE | KL3_CLK45_ENABLE |
1627                   KL3_I2S1_CLK18_ENABLE | KL3_I2S0_CLK18_ENABLE);
1628         if (sleep_mode)
1629                 temp &= ~(KL3_TIMER_CLK18_ENABLE | KL3_IT_VIA_CLK32_ENABLE);
1630         MACIO_OUT32(KEYLARGO_FCR3, temp);
1631
1632         /* Flush posted writes & wait a bit */
1633         (void)MACIO_IN32(KEYLARGO_FCR0);
1634         mdelay(10);
1635 }
1636
1637
1638 void pmac_tweak_clock_spreading(int enable)
1639 {
1640         struct macio_chip *macio = &macio_chips[0];
1641
1642         /* Hack for doing clock spreading on some machines PowerBooks and
1643          * iBooks. This implements the "platform-do-clockspreading" OF
1644          * property as decoded manually on various models. For safety, we also
1645          * check the product ID in the device-tree in cases we'll whack the i2c
1646          * chip to make reasonably sure we won't set wrong values in there
1647          *
1648          * Of course, ultimately, we have to implement a real parser for
1649          * the platform-do-* stuff...
1650          */
1651
1652         if (macio->type == macio_intrepid) {
1653                 if (enable)
1654                         UN_OUT(UNI_N_CLOCK_SPREADING, 2);
1655                 else
1656                         UN_OUT(UNI_N_CLOCK_SPREADING, 0);
1657                 mdelay(40);
1658         }
1659
1660         while (machine_is_compatible("PowerBook5,2") ||
1661                machine_is_compatible("PowerBook5,3") ||
1662                machine_is_compatible("PowerBook6,2") ||
1663                machine_is_compatible("PowerBook6,3")) {
1664                 struct device_node *ui2c = of_find_node_by_type(NULL, "i2c");
1665                 struct device_node *dt = of_find_node_by_name(NULL, "device-tree");
1666                 u8 buffer[9];
1667                 u32 *productID;
1668                 int i, rc, changed = 0;
1669
1670                 if (dt == NULL)
1671                         break;
1672                 productID = (u32 *)get_property(dt, "pid#", NULL);
1673                 if (productID == NULL)
1674                         break;
1675                 while(ui2c) {
1676                         struct device_node *p = of_get_parent(ui2c);
1677                         if (p && !strcmp(p->name, "uni-n"))
1678                                 break;
1679                         ui2c = of_find_node_by_type(ui2c, "i2c");
1680                 }
1681                 if (ui2c == NULL)
1682                         break;
1683                 DBG("Trying to bump clock speed for PID: %08x...\n", *productID);
1684                 rc = pmac_low_i2c_open(ui2c, 1);
1685                 if (rc != 0)
1686                         break;
1687                 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
1688                 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
1689                 DBG("read result: %d,", rc);
1690                 if (rc != 0) {
1691                         pmac_low_i2c_close(ui2c);
1692                         break;
1693                 }
1694                 for (i=0; i<9; i++)
1695                         DBG(" %02x", buffer[i]);
1696                 DBG("\n");
1697
1698                 switch(*productID) {
1699                 case 0x1182:    /* AlBook 12" rev 2 */
1700                 case 0x1183:    /* iBook G4 12" */
1701                         buffer[0] = (buffer[0] & 0x8f) | 0x70;
1702                         buffer[2] = (buffer[2] & 0x7f) | 0x00;
1703                         buffer[5] = (buffer[5] & 0x80) | 0x31;
1704                         buffer[6] = (buffer[6] & 0x40) | 0xb0;
1705                         buffer[7] = (buffer[7] & 0x00) | (enable ? 0xc0 : 0xba);
1706                         buffer[8] = (buffer[8] & 0x00) | 0x30;
1707                         changed = 1;
1708                         break;
1709                 case 0x3142:    /* AlBook 15" (ATI M10) */
1710                 case 0x3143:    /* AlBook 17" (ATI M10) */
1711                         buffer[0] = (buffer[0] & 0xaf) | 0x50;
1712                         buffer[2] = (buffer[2] & 0x7f) | 0x00;
1713                         buffer[5] = (buffer[5] & 0x80) | 0x31;
1714                         buffer[6] = (buffer[6] & 0x40) | 0xb0;
1715                         buffer[7] = (buffer[7] & 0x00) | (enable ? 0xd0 : 0xc0);
1716                         buffer[8] = (buffer[8] & 0x00) | 0x30;
1717                         changed = 1;
1718                         break;
1719                 default:
1720                         DBG("i2c-hwclock: Machine model not handled\n");
1721                         break;
1722                 }
1723                 if (!changed) {
1724                         pmac_low_i2c_close(ui2c);
1725                         break;
1726                 }
1727                 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_stdsub);
1728                 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_write, 0x80, buffer, 9);
1729                 DBG("write result: %d,", rc);
1730                 pmac_low_i2c_setmode(ui2c, pmac_low_i2c_mode_combined);
1731                 rc = pmac_low_i2c_xfer(ui2c, 0xd2 | pmac_low_i2c_read, 0x80, buffer, 9);
1732                 DBG("read result: %d,", rc);
1733                 if (rc != 0) {
1734                         pmac_low_i2c_close(ui2c);
1735                         break;
1736                 }
1737                 for (i=0; i<9; i++)
1738                         DBG(" %02x", buffer[i]);
1739                 pmac_low_i2c_close(ui2c);
1740                 break;
1741         }
1742 }
1743
1744
1745 static int
1746 core99_sleep(void)
1747 {
1748         struct macio_chip *macio;
1749         int i;
1750
1751         macio = &macio_chips[0];
1752         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1753             macio->type != macio_intrepid)
1754                 return -ENODEV;
1755
1756         /* We power off the wireless slot in case it was not done
1757          * by the driver. We don't power it on automatically however
1758          */
1759         if (macio->flags & MACIO_FLAG_AIRPORT_ON)
1760                 core99_airport_enable(macio->of_node, 0, 0);
1761
1762         /* We power off the FW cable. Should be done by the driver... */
1763         if (macio->flags & MACIO_FLAG_FW_SUPPORTED) {
1764                 core99_firewire_enable(NULL, 0, 0);
1765                 core99_firewire_cable_power(NULL, 0, 0);
1766         }
1767
1768         /* We make sure int. modem is off (in case driver lost it) */
1769         if (macio->type == macio_keylargo)
1770                 core99_modem_enable(macio->of_node, 0, 0);
1771         else
1772                 pangea_modem_enable(macio->of_node, 0, 0);
1773
1774         /* We make sure the sound is off as well */
1775         core99_sound_chip_enable(macio->of_node, 0, 0);
1776
1777         /*
1778          * Save various bits of KeyLargo
1779          */
1780
1781         /* Save the state of the various GPIOs */
1782         save_gpio_levels[0] = MACIO_IN32(KEYLARGO_GPIO_LEVELS0);
1783         save_gpio_levels[1] = MACIO_IN32(KEYLARGO_GPIO_LEVELS1);
1784         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1785                 save_gpio_extint[i] = MACIO_IN8(KEYLARGO_GPIO_EXTINT_0+i);
1786         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1787                 save_gpio_normal[i] = MACIO_IN8(KEYLARGO_GPIO_0+i);
1788
1789         /* Save the FCRs */
1790         if (macio->type == macio_keylargo)
1791                 save_mbcr = MACIO_IN32(KEYLARGO_MBCR);
1792         save_fcr[0] = MACIO_IN32(KEYLARGO_FCR0);
1793         save_fcr[1] = MACIO_IN32(KEYLARGO_FCR1);
1794         save_fcr[2] = MACIO_IN32(KEYLARGO_FCR2);
1795         save_fcr[3] = MACIO_IN32(KEYLARGO_FCR3);
1796         save_fcr[4] = MACIO_IN32(KEYLARGO_FCR4);
1797         if (macio->type == macio_pangea || macio->type == macio_intrepid)
1798                 save_fcr[5] = MACIO_IN32(KEYLARGO_FCR5);
1799
1800         /* Save state & config of DBDMA channels */
1801         dbdma_save(macio, save_dbdma);
1802
1803         /*
1804          * Turn off as much as we can
1805          */
1806         if (macio->type == macio_pangea)
1807                 pangea_shutdown(macio, 1);
1808         else if (macio->type == macio_intrepid)
1809                 intrepid_shutdown(macio, 1);
1810         else if (macio->type == macio_keylargo)
1811                 keylargo_shutdown(macio, 1);
1812
1813         /*
1814          * Put the host bridge to sleep
1815          */
1816
1817         save_unin_clock_ctl = UN_IN(UNI_N_CLOCK_CNTL);
1818         /* Note: do not switch GMAC off, driver does it when necessary, WOL must keep it
1819          * enabled !
1820          */
1821         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl &
1822                ~(/*UNI_N_CLOCK_CNTL_GMAC|*/UNI_N_CLOCK_CNTL_FW/*|UNI_N_CLOCK_CNTL_PCI*/));
1823         udelay(100);
1824         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1825         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_SLEEP);
1826         mdelay(10);
1827
1828         /*
1829          * FIXME: A bit of black magic with OpenPIC (don't ask me why)
1830          */
1831         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1832                 MACIO_BIS(0x506e0, 0x00400000);
1833                 MACIO_BIS(0x506e0, 0x80000000);
1834         }
1835         return 0;
1836 }
1837
1838 static int
1839 core99_wake_up(void)
1840 {
1841         struct macio_chip *macio;
1842         int i;
1843
1844         macio = &macio_chips[0];
1845         if (macio->type != macio_keylargo && macio->type != macio_pangea &&
1846             macio->type != macio_intrepid)
1847                 return -ENODEV;
1848
1849         /*
1850          * Wakeup the host bridge
1851          */
1852         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1853         udelay(10);
1854         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1855         udelay(10);
1856
1857         /*
1858          * Restore KeyLargo
1859          */
1860
1861         if (macio->type == macio_keylargo) {
1862                 MACIO_OUT32(KEYLARGO_MBCR, save_mbcr);
1863                 (void)MACIO_IN32(KEYLARGO_MBCR); udelay(10);
1864         }
1865         MACIO_OUT32(KEYLARGO_FCR0, save_fcr[0]);
1866         (void)MACIO_IN32(KEYLARGO_FCR0); udelay(10);
1867         MACIO_OUT32(KEYLARGO_FCR1, save_fcr[1]);
1868         (void)MACIO_IN32(KEYLARGO_FCR1); udelay(10);
1869         MACIO_OUT32(KEYLARGO_FCR2, save_fcr[2]);
1870         (void)MACIO_IN32(KEYLARGO_FCR2); udelay(10);
1871         MACIO_OUT32(KEYLARGO_FCR3, save_fcr[3]);
1872         (void)MACIO_IN32(KEYLARGO_FCR3); udelay(10);
1873         MACIO_OUT32(KEYLARGO_FCR4, save_fcr[4]);
1874         (void)MACIO_IN32(KEYLARGO_FCR4); udelay(10);
1875         if (macio->type == macio_pangea || macio->type == macio_intrepid) {
1876                 MACIO_OUT32(KEYLARGO_FCR5, save_fcr[5]);
1877                 (void)MACIO_IN32(KEYLARGO_FCR5); udelay(10);
1878         }
1879
1880         dbdma_restore(macio, save_dbdma);
1881
1882         MACIO_OUT32(KEYLARGO_GPIO_LEVELS0, save_gpio_levels[0]);
1883         MACIO_OUT32(KEYLARGO_GPIO_LEVELS1, save_gpio_levels[1]);
1884         for (i=0; i<KEYLARGO_GPIO_EXTINT_CNT; i++)
1885                 MACIO_OUT8(KEYLARGO_GPIO_EXTINT_0+i, save_gpio_extint[i]);
1886         for (i=0; i<KEYLARGO_GPIO_CNT; i++)
1887                 MACIO_OUT8(KEYLARGO_GPIO_0+i, save_gpio_normal[i]);
1888
1889         /* FIXME more black magic with OpenPIC ... */
1890         if (pmac_mb.model_id == PMAC_TYPE_SAWTOOTH) {
1891                 MACIO_BIC(0x506e0, 0x00400000);
1892                 MACIO_BIC(0x506e0, 0x80000000);
1893         }
1894
1895         UN_OUT(UNI_N_CLOCK_CNTL, save_unin_clock_ctl);
1896         udelay(100);
1897
1898         return 0;
1899 }
1900
1901 static long
1902 core99_sleep_state(struct device_node *node, long param, long value)
1903 {
1904         /* Param == 1 means to enter the "fake sleep" mode that is
1905          * used for CPU speed switch
1906          */
1907         if (param == 1) {
1908                 if (value == 1) {
1909                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_SLEEPING);
1910                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_IDLE2);
1911                 } else {
1912                         UN_OUT(UNI_N_POWER_MGT, UNI_N_POWER_MGT_NORMAL);
1913                         udelay(10);
1914                         UN_OUT(UNI_N_HWINIT_STATE, UNI_N_HWINIT_STATE_RUNNING);
1915                         udelay(10);
1916                 }
1917                 return 0;
1918         }
1919         if ((pmac_mb.board_flags & PMAC_MB_CAN_SLEEP) == 0)
1920                 return -EPERM;
1921
1922         if (value == 1)
1923                 return core99_sleep();
1924         else if (value == 0)
1925                 return core99_wake_up();
1926         return 0;
1927 }
1928
1929 #endif /* CONFIG_POWER4 */
1930
1931 static long
1932 generic_dev_can_wake(struct device_node *node, long param, long value)
1933 {
1934         /* Todo: eventually check we are really dealing with on-board
1935          * video device ...
1936          */
1937
1938         if (pmac_mb.board_flags & PMAC_MB_MAY_SLEEP)
1939                 pmac_mb.board_flags |= PMAC_MB_CAN_SLEEP;
1940         return 0;
1941 }
1942
1943 static long generic_get_mb_info(struct device_node *node, long param, long value)
1944 {
1945         switch(param) {
1946                 case PMAC_MB_INFO_MODEL:
1947                         return pmac_mb.model_id;
1948                 case PMAC_MB_INFO_FLAGS:
1949                         return pmac_mb.board_flags;
1950                 case PMAC_MB_INFO_NAME:
1951                         /* hack hack hack... but should work */
1952                         *((const char **)value) = pmac_mb.model_name;
1953                         return 0;
1954         }
1955         return -EINVAL;
1956 }
1957
1958
1959 /*
1960  * Table definitions
1961  */
1962
1963 /* Used on any machine
1964  */
1965 static struct feature_table_entry any_features[] = {
1966         { PMAC_FTR_GET_MB_INFO,         generic_get_mb_info },
1967         { PMAC_FTR_DEVICE_CAN_WAKE,     generic_dev_can_wake },
1968         { 0, NULL }
1969 };
1970
1971 #ifndef CONFIG_POWER4
1972
1973 /* OHare based motherboards. Currently, we only use these on the
1974  * 2400,3400 and 3500 series powerbooks. Some older desktops seem
1975  * to have issues with turning on/off those asic cells
1976  */
1977 static struct feature_table_entry ohare_features[] = {
1978         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
1979         { PMAC_FTR_SWIM3_ENABLE,        ohare_floppy_enable },
1980         { PMAC_FTR_MESH_ENABLE,         ohare_mesh_enable },
1981         { PMAC_FTR_IDE_ENABLE,          ohare_ide_enable},
1982         { PMAC_FTR_IDE_RESET,           ohare_ide_reset},
1983         { PMAC_FTR_SLEEP_STATE,         ohare_sleep_state },
1984         { 0, NULL }
1985 };
1986
1987 /* Heathrow desktop machines (Beige G3).
1988  * Separated as some features couldn't be properly tested
1989  * and the serial port control bits appear to confuse it.
1990  */
1991 static struct feature_table_entry heathrow_desktop_features[] = {
1992         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
1993         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
1994         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
1995         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
1996         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
1997         { 0, NULL }
1998 };
1999
2000 /* Heathrow based laptop, that is the Wallstreet and mainstreet
2001  * powerbooks.
2002  */
2003 static struct feature_table_entry heathrow_laptop_features[] = {
2004         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
2005         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
2006         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
2007         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
2008         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
2009         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
2010         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
2011         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
2012         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
2013         { 0, NULL }
2014 };
2015
2016 /* Paddington based machines
2017  * The lombard (101) powerbook, first iMac models, B&W G3 and Yikes G4.
2018  */
2019 static struct feature_table_entry paddington_features[] = {
2020         { PMAC_FTR_SCC_ENABLE,          ohare_htw_scc_enable },
2021         { PMAC_FTR_MODEM_ENABLE,        heathrow_modem_enable },
2022         { PMAC_FTR_SWIM3_ENABLE,        heathrow_floppy_enable },
2023         { PMAC_FTR_MESH_ENABLE,         heathrow_mesh_enable },
2024         { PMAC_FTR_IDE_ENABLE,          heathrow_ide_enable },
2025         { PMAC_FTR_IDE_RESET,           heathrow_ide_reset },
2026         { PMAC_FTR_BMAC_ENABLE,         heathrow_bmac_enable },
2027         { PMAC_FTR_SOUND_CHIP_ENABLE,   heathrow_sound_enable },
2028         { PMAC_FTR_SLEEP_STATE,         heathrow_sleep_state },
2029         { 0, NULL }
2030 };
2031
2032 /* Core99 & MacRISC 2 machines (all machines released since the
2033  * iBook (included), that is all AGP machines, except pangea
2034  * chipset. The pangea chipset is the "combo" UniNorth/KeyLargo
2035  * used on iBook2 & iMac "flow power".
2036  */
2037 static struct feature_table_entry core99_features[] = {
2038         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2039         { PMAC_FTR_MODEM_ENABLE,        core99_modem_enable },
2040         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2041         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2042         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2043         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2044         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2045         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2046         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2047         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2048         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2049         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2050 #ifdef CONFIG_SMP
2051         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
2052 #endif /* CONFIG_SMP */
2053         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2054         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2055         { 0, NULL }
2056 };
2057
2058 /* RackMac
2059  */
2060 static struct feature_table_entry rackmac_features[] = {
2061         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2062         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2063         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2064         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2065         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2066         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2067         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2068         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2069         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2070 #ifdef CONFIG_SMP
2071         { PMAC_FTR_RESET_CPU,           core99_reset_cpu },
2072 #endif /* CONFIG_SMP */
2073         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2074         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2075         { 0, NULL }
2076 };
2077
2078 /* Pangea features
2079  */
2080 static struct feature_table_entry pangea_features[] = {
2081         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2082         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2083         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2084         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2085         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2086         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2087         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2088         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2089         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2090         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2091         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2092         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2093         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2094         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2095         { 0, NULL }
2096 };
2097
2098 /* Intrepid features
2099  */
2100 static struct feature_table_entry intrepid_features[] = {
2101         { PMAC_FTR_SCC_ENABLE,          core99_scc_enable },
2102         { PMAC_FTR_MODEM_ENABLE,        pangea_modem_enable },
2103         { PMAC_FTR_IDE_ENABLE,          core99_ide_enable },
2104         { PMAC_FTR_IDE_RESET,           core99_ide_reset },
2105         { PMAC_FTR_GMAC_ENABLE,         core99_gmac_enable },
2106         { PMAC_FTR_GMAC_PHY_RESET,      core99_gmac_phy_reset },
2107         { PMAC_FTR_SOUND_CHIP_ENABLE,   core99_sound_chip_enable },
2108         { PMAC_FTR_AIRPORT_ENABLE,      core99_airport_enable },
2109         { PMAC_FTR_USB_ENABLE,          core99_usb_enable },
2110         { PMAC_FTR_1394_ENABLE,         core99_firewire_enable },
2111         { PMAC_FTR_1394_CABLE_POWER,    core99_firewire_cable_power },
2112         { PMAC_FTR_SLEEP_STATE,         core99_sleep_state },
2113         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2114         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2115         { PMAC_FTR_AACK_DELAY_ENABLE,   intrepid_aack_delay_enable },
2116         { 0, NULL }
2117 };
2118
2119 #else /* CONFIG_POWER4 */
2120
2121 /* G5 features
2122  */
2123 static struct feature_table_entry g5_features[] = {
2124         { PMAC_FTR_GMAC_ENABLE,         g5_gmac_enable },
2125         { PMAC_FTR_1394_ENABLE,         g5_fw_enable },
2126         { PMAC_FTR_ENABLE_MPIC,         g5_mpic_enable },
2127         { PMAC_FTR_GMAC_PHY_RESET,      g5_eth_phy_reset },
2128         { PMAC_FTR_SOUND_CHIP_ENABLE,   g5_i2s_enable },
2129 #ifdef CONFIG_SMP
2130         { PMAC_FTR_RESET_CPU,           g5_reset_cpu },
2131 #endif /* CONFIG_SMP */
2132         { PMAC_FTR_READ_GPIO,           core99_read_gpio },
2133         { PMAC_FTR_WRITE_GPIO,          core99_write_gpio },
2134         { 0, NULL }
2135 };
2136
2137 #endif /* CONFIG_POWER4 */
2138
2139 static struct pmac_mb_def pmac_mb_defs[] = {
2140 #ifndef CONFIG_POWER4
2141         /*
2142          * Desktops
2143          */
2144
2145         {       "AAPL,8500",                    "PowerMac 8500/8600",
2146                 PMAC_TYPE_PSURGE,               NULL,
2147                 0
2148         },
2149         {       "AAPL,9500",                    "PowerMac 9500/9600",
2150                 PMAC_TYPE_PSURGE,               NULL,
2151                 0
2152         },
2153         {       "AAPL,7200",                    "PowerMac 7200",
2154                 PMAC_TYPE_PSURGE,               NULL,
2155                 0
2156         },
2157         {       "AAPL,7300",                    "PowerMac 7200/7300",
2158                 PMAC_TYPE_PSURGE,               NULL,
2159                 0
2160         },
2161         {       "AAPL,7500",                    "PowerMac 7500",
2162                 PMAC_TYPE_PSURGE,               NULL,
2163                 0
2164         },
2165         {       "AAPL,ShinerESB",               "Apple Network Server",
2166                 PMAC_TYPE_ANS,                  NULL,
2167                 0
2168         },
2169         {       "AAPL,e407",                    "Alchemy",
2170                 PMAC_TYPE_ALCHEMY,              NULL,
2171                 0
2172         },
2173         {       "AAPL,e411",                    "Gazelle",
2174                 PMAC_TYPE_GAZELLE,              NULL,
2175                 0
2176         },
2177         {       "AAPL,Gossamer",                "PowerMac G3 (Gossamer)",
2178                 PMAC_TYPE_GOSSAMER,             heathrow_desktop_features,
2179                 0
2180         },
2181         {       "AAPL,PowerMac G3",             "PowerMac G3 (Silk)",
2182                 PMAC_TYPE_SILK,                 heathrow_desktop_features,
2183                 0
2184         },
2185         {       "PowerMac1,1",                  "Blue&White G3",
2186                 PMAC_TYPE_YOSEMITE,             paddington_features,
2187                 0
2188         },
2189         {       "PowerMac1,2",                  "PowerMac G4 PCI Graphics",
2190                 PMAC_TYPE_YIKES,                paddington_features,
2191                 0
2192         },
2193         {       "PowerMac2,1",                  "iMac FireWire",
2194                 PMAC_TYPE_FW_IMAC,              core99_features,
2195                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2196         },
2197         {       "PowerMac2,2",                  "iMac FireWire",
2198                 PMAC_TYPE_FW_IMAC,              core99_features,
2199                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2200         },
2201         {       "PowerMac3,1",                  "PowerMac G4 AGP Graphics",
2202                 PMAC_TYPE_SAWTOOTH,             core99_features,
2203                 PMAC_MB_OLD_CORE99
2204         },
2205         {       "PowerMac3,2",                  "PowerMac G4 AGP Graphics",
2206                 PMAC_TYPE_SAWTOOTH,             core99_features,
2207                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2208         },
2209         {       "PowerMac3,3",                  "PowerMac G4 AGP Graphics",
2210                 PMAC_TYPE_SAWTOOTH,             core99_features,
2211                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2212         },
2213         {       "PowerMac3,4",                  "PowerMac G4 Silver",
2214                 PMAC_TYPE_QUICKSILVER,          core99_features,
2215                 PMAC_MB_MAY_SLEEP
2216         },
2217         {       "PowerMac3,5",                  "PowerMac G4 Silver",
2218                 PMAC_TYPE_QUICKSILVER,          core99_features,
2219                 PMAC_MB_MAY_SLEEP
2220         },
2221         {       "PowerMac3,6",                  "PowerMac G4 Windtunnel",
2222                 PMAC_TYPE_WINDTUNNEL,           core99_features,
2223                 PMAC_MB_MAY_SLEEP,
2224         },
2225         {       "PowerMac4,1",                  "iMac \"Flower Power\"",
2226                 PMAC_TYPE_PANGEA_IMAC,          pangea_features,
2227                 PMAC_MB_MAY_SLEEP
2228         },
2229         {       "PowerMac4,2",                  "Flat panel iMac",
2230                 PMAC_TYPE_FLAT_PANEL_IMAC,      pangea_features,
2231                 PMAC_MB_CAN_SLEEP
2232         },
2233         {       "PowerMac4,4",                  "eMac",
2234                 PMAC_TYPE_EMAC,                 core99_features,
2235                 PMAC_MB_MAY_SLEEP
2236         },
2237         {       "PowerMac5,1",                  "PowerMac G4 Cube",
2238                 PMAC_TYPE_CUBE,                 core99_features,
2239                 PMAC_MB_MAY_SLEEP | PMAC_MB_OLD_CORE99
2240         },
2241         {       "PowerMac6,1",                  "Flat panel iMac",
2242                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2243                 PMAC_MB_MAY_SLEEP,
2244         },
2245         {       "PowerMac6,3",                  "Flat panel iMac",
2246                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2247                 PMAC_MB_MAY_SLEEP,
2248         },
2249         {       "PowerMac6,4",                  "eMac",
2250                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2251                 PMAC_MB_MAY_SLEEP,
2252         },
2253         {       "PowerMac10,1",                 "Mac mini",
2254                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2255                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER,
2256         },
2257         {       "iMac,1",                       "iMac (first generation)",
2258                 PMAC_TYPE_ORIG_IMAC,            paddington_features,
2259                 0
2260         },
2261
2262         /*
2263          * Xserve's
2264          */
2265
2266         {       "RackMac1,1",                   "XServe",
2267                 PMAC_TYPE_RACKMAC,              rackmac_features,
2268                 0,
2269         },
2270         {       "RackMac1,2",                   "XServe rev. 2",
2271                 PMAC_TYPE_RACKMAC,              rackmac_features,
2272                 0,
2273         },
2274
2275         /*
2276          * Laptops
2277          */
2278
2279         {       "AAPL,3400/2400",               "PowerBook 3400",
2280                 PMAC_TYPE_HOOPER,               ohare_features,
2281                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2282         },
2283         {       "AAPL,3500",                    "PowerBook 3500",
2284                 PMAC_TYPE_KANGA,                ohare_features,
2285                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2286         },
2287         {       "AAPL,PowerBook1998",           "PowerBook Wallstreet",
2288                 PMAC_TYPE_WALLSTREET,           heathrow_laptop_features,
2289                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2290         },
2291         {       "PowerBook1,1",                 "PowerBook 101 (Lombard)",
2292                 PMAC_TYPE_101_PBOOK,            paddington_features,
2293                 PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
2294         },
2295         {       "PowerBook2,1",                 "iBook (first generation)",
2296                 PMAC_TYPE_ORIG_IBOOK,           core99_features,
2297                 PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2298         },
2299         {       "PowerBook2,2",                 "iBook FireWire",
2300                 PMAC_TYPE_FW_IBOOK,             core99_features,
2301                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2302                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2303         },
2304         {       "PowerBook3,1",                 "PowerBook Pismo",
2305                 PMAC_TYPE_PISMO,                core99_features,
2306                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER |
2307                 PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
2308         },
2309         {       "PowerBook3,2",                 "PowerBook Titanium",
2310                 PMAC_TYPE_TITANIUM,             core99_features,
2311                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2312         },
2313         {       "PowerBook3,3",                 "PowerBook Titanium II",
2314                 PMAC_TYPE_TITANIUM2,            core99_features,
2315                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2316         },
2317         {       "PowerBook3,4",                 "PowerBook Titanium III",
2318                 PMAC_TYPE_TITANIUM3,            core99_features,
2319                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2320         },
2321         {       "PowerBook3,5",                 "PowerBook Titanium IV",
2322                 PMAC_TYPE_TITANIUM4,            core99_features,
2323                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2324         },
2325         {       "PowerBook4,1",                 "iBook 2",
2326                 PMAC_TYPE_IBOOK2,               pangea_features,
2327                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2328         },
2329         {       "PowerBook4,2",                 "iBook 2",
2330                 PMAC_TYPE_IBOOK2,               pangea_features,
2331                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2332         },
2333         {       "PowerBook4,3",                 "iBook 2 rev. 2",
2334                 PMAC_TYPE_IBOOK2,               pangea_features,
2335                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
2336         },
2337         {       "PowerBook5,1",                 "PowerBook G4 17\"",
2338                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2339                 PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2340         },
2341         {       "PowerBook5,2",                 "PowerBook G4 15\"",
2342                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2343                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2344         },
2345         {       "PowerBook5,3",                 "PowerBook G4 17\"",
2346                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2347                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2348         },
2349         {       "PowerBook5,4",                 "PowerBook G4 15\"",
2350                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2351                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2352         },
2353         {       "PowerBook5,5",                 "PowerBook G4 17\"",
2354                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2355                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2356         },
2357         {       "PowerBook5,6",                 "PowerBook G4 15\"",
2358                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2359                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2360         },
2361         {       "PowerBook5,7",                 "PowerBook G4 17\"",
2362                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2363                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2364         },
2365         {       "PowerBook6,1",                 "PowerBook G4 12\"",
2366                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2367                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2368         },
2369         {       "PowerBook6,2",                 "PowerBook G4",
2370                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2371                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2372         },
2373         {       "PowerBook6,3",                 "iBook G4",
2374                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2375                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2376         },
2377         {       "PowerBook6,4",                 "PowerBook G4 12\"",
2378                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2379                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2380         },
2381         {       "PowerBook6,5",                 "iBook G4",
2382                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2383                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2384         },
2385         {       "PowerBook6,7",                 "iBook G4",
2386                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2387                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2388         },
2389         {       "PowerBook6,8",                 "PowerBook G4 12\"",
2390                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
2391                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
2392         },
2393 #else /* CONFIG_POWER4 */
2394         {       "PowerMac7,2",                  "PowerMac G5",
2395                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2396                 0,
2397         },
2398 #ifdef CONFIG_PPC64
2399         {       "PowerMac7,3",                  "PowerMac G5",
2400                 PMAC_TYPE_POWERMAC_G5,          g5_features,
2401                 0,
2402         },
2403         {       "PowerMac8,1",                  "iMac G5",
2404                 PMAC_TYPE_IMAC_G5,              g5_features,
2405                 0,
2406         },
2407         {       "PowerMac9,1",                  "PowerMac G5",
2408                 PMAC_TYPE_POWERMAC_G5_U3L,      g5_features,
2409                 0,
2410         },
2411         {       "RackMac3,1",                   "XServe G5",
2412                 PMAC_TYPE_XSERVE_G5,            g5_features,
2413                 0,
2414         },
2415 #endif /* CONFIG_PPC64 */
2416 #endif /* CONFIG_POWER4 */
2417 };
2418
2419 /*
2420  * The toplevel feature_call callback
2421  */
2422 long pmac_do_feature_call(unsigned int selector, ...)
2423 {
2424         struct device_node *node;
2425         long param, value;
2426         int i;
2427         feature_call func = NULL;
2428         va_list args;
2429
2430         if (pmac_mb.features)
2431                 for (i=0; pmac_mb.features[i].function; i++)
2432                         if (pmac_mb.features[i].selector == selector) {
2433                                 func = pmac_mb.features[i].function;
2434                                 break;
2435                         }
2436         if (!func)
2437                 for (i=0; any_features[i].function; i++)
2438                         if (any_features[i].selector == selector) {
2439                                 func = any_features[i].function;
2440                                 break;
2441                         }
2442         if (!func)
2443                 return -ENODEV;
2444
2445         va_start(args, selector);
2446         node = (struct device_node*)va_arg(args, void*);
2447         param = va_arg(args, long);
2448         value = va_arg(args, long);
2449         va_end(args);
2450
2451         return func(node, param, value);
2452 }
2453
2454 static int __init probe_motherboard(void)
2455 {
2456         int i;
2457         struct macio_chip *macio = &macio_chips[0];
2458         const char *model = NULL;
2459         struct device_node *dt;
2460
2461         /* Lookup known motherboard type in device-tree. First try an
2462          * exact match on the "model" property, then try a "compatible"
2463          * match is none is found.
2464          */
2465         dt = find_devices("device-tree");
2466         if (dt != NULL)
2467                 model = (const char *) get_property(dt, "model", NULL);
2468         for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2469             if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
2470                 pmac_mb = pmac_mb_defs[i];
2471                 goto found;
2472             }
2473         }
2474         for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
2475             if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
2476                 pmac_mb = pmac_mb_defs[i];
2477                 goto found;
2478             }
2479         }
2480
2481         /* Fallback to selection depending on mac-io chip type */
2482         switch(macio->type) {
2483 #ifndef CONFIG_POWER4
2484             case macio_grand_central:
2485                 pmac_mb.model_id = PMAC_TYPE_PSURGE;
2486                 pmac_mb.model_name = "Unknown PowerSurge";
2487                 break;
2488             case macio_ohare:
2489                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
2490                 pmac_mb.model_name = "Unknown OHare-based";
2491                 break;
2492             case macio_heathrow:
2493                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
2494                 pmac_mb.model_name = "Unknown Heathrow-based";
2495                 pmac_mb.features = heathrow_desktop_features;
2496                 break;
2497             case macio_paddington:
2498                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
2499                 pmac_mb.model_name = "Unknown Paddington-based";
2500                 pmac_mb.features = paddington_features;
2501                 break;
2502             case macio_keylargo:
2503                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
2504                 pmac_mb.model_name = "Unknown Keylargo-based";
2505                 pmac_mb.features = core99_features;
2506                 break;
2507             case macio_pangea:
2508                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
2509                 pmac_mb.model_name = "Unknown Pangea-based";
2510                 pmac_mb.features = pangea_features;
2511                 break;
2512             case macio_intrepid:
2513                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
2514                 pmac_mb.model_name = "Unknown Intrepid-based";
2515                 pmac_mb.features = intrepid_features;
2516                 break;
2517 #else /* CONFIG_POWER4 */
2518         case macio_keylargo2:
2519                 pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
2520                 pmac_mb.model_name = "Unknown K2-based";
2521                 pmac_mb.features = g5_features;
2522                 break;
2523 #endif /* CONFIG_POWER4 */
2524         default:
2525                 return -ENODEV;
2526         }
2527 found:
2528 #ifndef CONFIG_POWER4
2529         /* Fixup Hooper vs. Comet */
2530         if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
2531                 u32 __iomem * mach_id_ptr = ioremap(0xf3000034, 4);
2532                 if (!mach_id_ptr)
2533                         return -ENODEV;
2534                 /* Here, I used to disable the media-bay on comet. It
2535                  * appears this is wrong, the floppy connector is actually
2536                  * a kind of media-bay and works with the current driver.
2537                  */
2538                 if (__raw_readl(mach_id_ptr) & 0x20000000UL)
2539                         pmac_mb.model_id = PMAC_TYPE_COMET;
2540                 iounmap(mach_id_ptr);
2541         }
2542 #endif /* CONFIG_POWER4 */
2543
2544 #ifdef CONFIG_6xx
2545         /* Set default value of powersave_nap on machines that support it.
2546          * It appears that uninorth rev 3 has a problem with it, we don't
2547          * enable it on those. In theory, the flush-on-lock property is
2548          * supposed to be set when not supported, but I'm not very confident
2549          * that all Apple OF revs did it properly, I do it the paranoid way.
2550          */
2551         while (uninorth_base && uninorth_rev > 3) {
2552                 struct device_node *np = find_path_device("/cpus");
2553                 if (!np || !np->child) {
2554                         printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
2555                         break;
2556                 }
2557                 np = np->child;
2558                 /* Nap mode not supported on SMP */
2559                 if (np->sibling)
2560                         break;
2561                 /* Nap mode not supported if flush-on-lock property is present */
2562                 if (get_property(np, "flush-on-lock", NULL))
2563                         break;
2564                 powersave_nap = 1;
2565                 printk(KERN_INFO "Processor NAP mode on idle enabled.\n");
2566                 break;
2567         }
2568
2569         /* On CPUs that support it (750FX), lowspeed by default during
2570          * NAP mode
2571          */
2572         powersave_lowspeed = 1;
2573 #endif /* CONFIG_6xx */
2574 #ifdef CONFIG_POWER4
2575         powersave_nap = 1;
2576 #endif
2577         /* Check for "mobile" machine */
2578         if (model && (strncmp(model, "PowerBook", 9) == 0
2579                    || strncmp(model, "iBook", 5) == 0))
2580                 pmac_mb.board_flags |= PMAC_MB_MOBILE;
2581
2582
2583         printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
2584         return 0;
2585 }
2586
2587 /* Initialize the Core99 UniNorth host bridge and memory controller
2588  */
2589 static void __init probe_uninorth(void)
2590 {
2591         unsigned long actrl;
2592
2593         /* Locate core99 Uni-N */
2594         uninorth_node = of_find_node_by_name(NULL, "uni-n");
2595         /* Locate G5 u3 */
2596         if (uninorth_node == NULL) {
2597                 uninorth_node = of_find_node_by_name(NULL, "u3");
2598                 uninorth_u3 = 1;
2599         }
2600         if (uninorth_node && uninorth_node->n_addrs > 0) {
2601                 unsigned long address = uninorth_node->addrs[0].address;
2602                 uninorth_base = ioremap(address, 0x40000);
2603                 uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
2604                 if (uninorth_u3)
2605                         u3_ht = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
2606         } else
2607                 uninorth_node = NULL;
2608
2609         if (!uninorth_node)
2610                 return;
2611
2612         printk(KERN_INFO "Found %s memory controller & host bridge, revision: %d\n",
2613                uninorth_u3 ? "U3" : "UniNorth", uninorth_rev);
2614         printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);
2615
2616         /* Set the arbitrer QAck delay according to what Apple does
2617          */
2618         if (uninorth_rev < 0x11) {
2619                 actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
2620                 actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
2621                         UNI_N_ARB_CTRL_QACK_DELAY) << UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
2622                 UN_OUT(UNI_N_ARB_CTRL, actrl);
2623         }
2624
2625         /* Some more magic as done by them in recent MacOS X on UniNorth
2626          * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
2627          * memory timeout
2628          */
2629         if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) || uninorth_rev == 0xc0)
2630                 UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
2631 }
2632
2633 static void __init probe_one_macio(const char *name, const char *compat, int type)
2634 {
2635         struct device_node*     node;
2636         int                     i;
2637         volatile u32 __iomem *  base;
2638         u32*                    revp;
2639
2640         node = find_devices(name);
2641         if (!node || !node->n_addrs)
2642                 return;
2643         if (compat)
2644                 do {
2645                         if (device_is_compatible(node, compat))
2646                                 break;
2647                         node = node->next;
2648                 } while (node);
2649         if (!node)
2650                 return;
2651         for(i=0; i<MAX_MACIO_CHIPS; i++) {
2652                 if (!macio_chips[i].of_node)
2653                         break;
2654                 if (macio_chips[i].of_node == node)
2655                         return;
2656         }
2657         if (i >= MAX_MACIO_CHIPS) {
2658                 printk(KERN_ERR "pmac_feature: Please increase MAX_MACIO_CHIPS !\n");
2659                 printk(KERN_ERR "pmac_feature: %s skipped\n", node->full_name);
2660                 return;
2661         }
2662         base = ioremap(node->addrs[0].address, node->addrs[0].size);
2663         if (!base) {
2664                 printk(KERN_ERR "pmac_feature: Can't map mac-io chip !\n");
2665                 return;
2666         }
2667         if (type == macio_keylargo) {
2668                 u32 *did = (u32 *)get_property(node, "device-id", NULL);
2669                 if (*did == 0x00000025)
2670                         type = macio_pangea;
2671                 if (*did == 0x0000003e)
2672                         type = macio_intrepid;
2673         }
2674         macio_chips[i].of_node  = node;
2675         macio_chips[i].type     = type;
2676         macio_chips[i].base     = base;
2677         macio_chips[i].flags    = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
2678         macio_chips[i].name     = macio_names[type];
2679         revp = (u32 *)get_property(node, "revision-id", NULL);
2680         if (revp)
2681                 macio_chips[i].rev = *revp;
2682         printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
2683                 macio_names[type], macio_chips[i].rev, macio_chips[i].base);
2684 }
2685
2686 static int __init
2687 probe_macios(void)
2688 {
2689         /* Warning, ordering is important */
2690         probe_one_macio("gc", NULL, macio_grand_central);
2691         probe_one_macio("ohare", NULL, macio_ohare);
2692         probe_one_macio("pci106b,7", NULL, macio_ohareII);
2693         probe_one_macio("mac-io", "keylargo", macio_keylargo);
2694         probe_one_macio("mac-io", "paddington", macio_paddington);
2695         probe_one_macio("mac-io", "gatwick", macio_gatwick);
2696         probe_one_macio("mac-io", "heathrow", macio_heathrow);
2697         probe_one_macio("mac-io", "K2-Keylargo", macio_keylargo2);
2698
2699         /* Make sure the "main" macio chip appear first */
2700         if (macio_chips[0].type == macio_gatwick
2701             && macio_chips[1].type == macio_heathrow) {
2702                 struct macio_chip temp = macio_chips[0];
2703                 macio_chips[0] = macio_chips[1];
2704                 macio_chips[1] = temp;
2705         }
2706         if (macio_chips[0].type == macio_ohareII
2707             && macio_chips[1].type == macio_ohare) {
2708                 struct macio_chip temp = macio_chips[0];
2709                 macio_chips[0] = macio_chips[1];
2710                 macio_chips[1] = temp;
2711         }
2712         macio_chips[0].lbus.index = 0;
2713         macio_chips[1].lbus.index = 1;
2714
2715         return (macio_chips[0].of_node == NULL) ? -ENODEV : 0;
2716 }
2717
2718 static void __init
2719 initial_serial_shutdown(struct device_node *np)
2720 {
2721         int len;
2722         struct slot_names_prop {
2723                 int     count;
2724                 char    name[1];
2725         } *slots;
2726         char *conn;
2727         int port_type = PMAC_SCC_ASYNC;
2728         int modem = 0;
2729
2730         slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
2731         conn = get_property(np, "AAPL,connector", &len);
2732         if (conn && (strcmp(conn, "infrared") == 0))
2733                 port_type = PMAC_SCC_IRDA;
2734         else if (device_is_compatible(np, "cobalt"))
2735                 modem = 1;
2736         else if (slots && slots->count > 0) {
2737                 if (strcmp(slots->name, "IrDA") == 0)
2738                         port_type = PMAC_SCC_IRDA;
2739                 else if (strcmp(slots->name, "Modem") == 0)
2740                         modem = 1;
2741         }
2742         if (modem)
2743                 pmac_call_feature(PMAC_FTR_MODEM_ENABLE, np, 0, 0);
2744         pmac_call_feature(PMAC_FTR_SCC_ENABLE, np, port_type, 0);
2745 }
2746
2747 static void __init
2748 set_initial_features(void)
2749 {
2750         struct device_node *np;
2751
2752         /* That hack appears to be necessary for some StarMax motherboards
2753          * but I'm not too sure it was audited for side-effects on other
2754          * ohare based machines...
2755          * Since I still have difficulties figuring the right way to
2756          * differenciate them all and since that hack was there for a long
2757          * time, I'll keep it around
2758          */
2759         if (macio_chips[0].type == macio_ohare && !find_devices("via-pmu")) {
2760                 struct macio_chip *macio = &macio_chips[0];
2761                 MACIO_OUT32(OHARE_FCR, STARMAX_FEATURES);
2762         } else if (macio_chips[0].type == macio_ohare) {
2763                 struct macio_chip *macio = &macio_chips[0];
2764                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2765         } else if (macio_chips[1].type == macio_ohare) {
2766                 struct macio_chip *macio = &macio_chips[1];
2767                 MACIO_BIS(OHARE_FCR, OH_IOBUS_ENABLE);
2768         }
2769
2770 #ifdef CONFIG_POWER4
2771         if (macio_chips[0].type == macio_keylargo2) {
2772 #ifndef CONFIG_SMP
2773                 /* On SMP machines running UP, we have the second CPU eating
2774                  * bus cycles. We need to take it off the bus. This is done
2775                  * from pmac_smp for SMP kernels running on one CPU
2776                  */
2777                 np = of_find_node_by_type(NULL, "cpu");
2778                 if (np != NULL)
2779                         np = of_find_node_by_type(np, "cpu");
2780                 if (np != NULL) {
2781                         g5_phy_disable_cpu1();
2782                         of_node_put(np);
2783                 }
2784 #endif /* CONFIG_SMP */
2785                 /* Enable GMAC for now for PCI probing. It will be disabled
2786                  * later on after PCI probe
2787                  */
2788                 np = of_find_node_by_name(NULL, "ethernet");
2789                 while(np) {
2790                         if (device_is_compatible(np, "K2-GMAC"))
2791                                 g5_gmac_enable(np, 0, 1);
2792                         np = of_find_node_by_name(np, "ethernet");
2793                 }
2794
2795                 /* Enable FW before PCI probe. Will be disabled later on
2796                  * Note: We should have a batter way to check that we are
2797                  * dealing with uninorth internal cell and not a PCI cell
2798                  * on the external PCI. The code below works though.
2799                  */
2800                 np = of_find_node_by_name(NULL, "firewire");
2801                 while(np) {
2802                         if (device_is_compatible(np, "pci106b,5811")) {
2803                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2804                                 g5_fw_enable(np, 0, 1);
2805                         }
2806                         np = of_find_node_by_name(np, "firewire");
2807                 }
2808         }
2809 #else /* CONFIG_POWER4 */
2810
2811         if (macio_chips[0].type == macio_keylargo ||
2812             macio_chips[0].type == macio_pangea ||
2813             macio_chips[0].type == macio_intrepid) {
2814                 /* Enable GMAC for now for PCI probing. It will be disabled
2815                  * later on after PCI probe
2816                  */
2817                 np = of_find_node_by_name(NULL, "ethernet");
2818                 while(np) {
2819                         if (np->parent
2820                             && device_is_compatible(np->parent, "uni-north")
2821                             && device_is_compatible(np, "gmac"))
2822                                 core99_gmac_enable(np, 0, 1);
2823                         np = of_find_node_by_name(np, "ethernet");
2824                 }
2825
2826                 /* Enable FW before PCI probe. Will be disabled later on
2827                  * Note: We should have a batter way to check that we are
2828                  * dealing with uninorth internal cell and not a PCI cell
2829                  * on the external PCI. The code below works though.
2830                  */
2831                 np = of_find_node_by_name(NULL, "firewire");
2832                 while(np) {
2833                         if (np->parent
2834                             && device_is_compatible(np->parent, "uni-north")
2835                             && (device_is_compatible(np, "pci106b,18") ||
2836                                 device_is_compatible(np, "pci106b,30") ||
2837                                 device_is_compatible(np, "pci11c1,5811"))) {
2838                                 macio_chips[0].flags |= MACIO_FLAG_FW_SUPPORTED;
2839                                 core99_firewire_enable(np, 0, 1);
2840                         }
2841                         np = of_find_node_by_name(np, "firewire");
2842                 }
2843
2844                 /* Enable ATA-100 before PCI probe. */
2845                 np = of_find_node_by_name(NULL, "ata-6");
2846                 while(np) {
2847                         if (np->parent
2848                             && device_is_compatible(np->parent, "uni-north")
2849                             && device_is_compatible(np, "kauai-ata")) {
2850                                 core99_ata100_enable(np, 1);
2851                         }
2852                         np = of_find_node_by_name(np, "ata-6");
2853                 }
2854
2855                 /* Switch airport off */
2856                 np = find_devices("radio");
2857                 while(np) {
2858                         if (np && np->parent == macio_chips[0].of_node) {
2859                                 macio_chips[0].flags |= MACIO_FLAG_AIRPORT_ON;
2860                                 core99_airport_enable(np, 0, 0);
2861                         }
2862                         np = np->next;
2863                 }
2864         }
2865
2866         /* On all machines that support sound PM, switch sound off */
2867         if (macio_chips[0].of_node)
2868                 pmac_do_feature_call(PMAC_FTR_SOUND_CHIP_ENABLE,
2869                         macio_chips[0].of_node, 0, 0);
2870
2871         /* While on some desktop G3s, we turn it back on */
2872         if (macio_chips[0].of_node && macio_chips[0].type == macio_heathrow
2873                 && (pmac_mb.model_id == PMAC_TYPE_GOSSAMER ||
2874                     pmac_mb.model_id == PMAC_TYPE_SILK)) {
2875                 struct macio_chip *macio = &macio_chips[0];
2876                 MACIO_BIS(HEATHROW_FCR, HRW_SOUND_CLK_ENABLE);
2877                 MACIO_BIC(HEATHROW_FCR, HRW_SOUND_POWER_N);
2878         }
2879
2880         /* Some machine models need the clock chip to be properly setup for
2881          * clock spreading now. This should be a platform function but we
2882          * don't do these at the moment
2883          */
2884         pmac_tweak_clock_spreading(1);
2885
2886 #endif /* CONFIG_POWER4 */
2887
2888         /* On all machines, switch modem & serial ports off */
2889         np = find_devices("ch-a");
2890         while(np) {
2891                 initial_serial_shutdown(np);
2892                 np = np->next;
2893         }
2894         np = find_devices("ch-b");
2895         while(np) {
2896                 initial_serial_shutdown(np);
2897                 np = np->next;
2898         }
2899 }
2900
2901 void __init
2902 pmac_feature_init(void)
2903 {
2904         /* Detect the UniNorth memory controller */
2905         probe_uninorth();
2906
2907         /* Probe mac-io controllers */
2908         if (probe_macios()) {
2909                 printk(KERN_WARNING "No mac-io chip found\n");
2910                 return;
2911         }
2912
2913         /* Setup low-level i2c stuffs */
2914         pmac_init_low_i2c();
2915
2916         /* Probe machine type */
2917         if (probe_motherboard())
2918                 printk(KERN_WARNING "Unknown PowerMac !\n");
2919
2920         /* Set some initial features (turn off some chips that will
2921          * be later turned on)
2922          */
2923         set_initial_features();
2924 }
2925
2926 int __init pmac_feature_late_init(void)
2927 {
2928 #if 0
2929         struct device_node *np;
2930
2931         /* Request some resources late */
2932         if (uninorth_node)
2933                 request_OF_resource(uninorth_node, 0, NULL);
2934         np = find_devices("hammerhead");
2935         if (np)
2936                 request_OF_resource(np, 0, NULL);
2937         np = find_devices("interrupt-controller");
2938         if (np)
2939                 request_OF_resource(np, 0, NULL);
2940 #endif
2941         return 0;
2942 }
2943
2944 device_initcall(pmac_feature_late_init);
2945
2946 #if 0
2947 static void dump_HT_speeds(char *name, u32 cfg, u32 frq)
2948 {
2949         int     freqs[16] = { 200,300,400,500,600,800,1000,0,0,0,0,0,0,0,0,0 };
2950         int     bits[8] = { 8,16,0,32,2,4,0,0 };
2951         int     freq = (frq >> 8) & 0xf;
2952
2953         if (freqs[freq] == 0)
2954                 printk("%s: Unknown HT link frequency %x\n", name, freq);
2955         else
2956                 printk("%s: %d MHz on main link, (%d in / %d out) bits width\n",
2957                        name, freqs[freq],
2958                        bits[(cfg >> 28) & 0x7], bits[(cfg >> 24) & 0x7]);
2959 }
2960
2961 void __init pmac_check_ht_link(void)
2962 {
2963         u32     ufreq, freq, ucfg, cfg;
2964         struct device_node *pcix_node;
2965         u8      px_bus, px_devfn;
2966         struct pci_controller *px_hose;
2967
2968         (void)in_be32(u3_ht + U3_HT_LINK_COMMAND);
2969         ucfg = cfg = in_be32(u3_ht + U3_HT_LINK_CONFIG);
2970         ufreq = freq = in_be32(u3_ht + U3_HT_LINK_FREQ);
2971         dump_HT_speeds("U3 HyperTransport", cfg, freq);
2972
2973         pcix_node = of_find_compatible_node(NULL, "pci", "pci-x");
2974         if (pcix_node == NULL) {
2975                 printk("No PCI-X bridge found\n");
2976                 return;
2977         }
2978         if (pci_device_from_OF_node(pcix_node, &px_bus, &px_devfn) != 0) {
2979                 printk("PCI-X bridge found but not matched to pci\n");
2980                 return;
2981         }
2982         px_hose = pci_find_hose_for_OF_device(pcix_node);
2983         if (px_hose == NULL) {
2984                 printk("PCI-X bridge found but not matched to host\n");
2985                 return;
2986         }
2987         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc4, &cfg);
2988         early_read_config_dword(px_hose, px_bus, px_devfn, 0xcc, &freq);
2989         dump_HT_speeds("PCI-X HT Uplink", cfg, freq);
2990         early_read_config_dword(px_hose, px_bus, px_devfn, 0xc8, &cfg);
2991         early_read_config_dword(px_hose, px_bus, px_devfn, 0xd0, &freq);
2992         dump_HT_speeds("PCI-X HT Downlink", cfg, freq);
2993 }
2994 #endif /* 0 */
2995
2996 /*
2997  * Early video resume hook
2998  */
2999
3000 static void (*pmac_early_vresume_proc)(void *data);
3001 static void *pmac_early_vresume_data;
3002
3003 void pmac_set_early_video_resume(void (*proc)(void *data), void *data)
3004 {
3005         if (_machine != _MACH_Pmac)
3006                 return;
3007         preempt_disable();
3008         pmac_early_vresume_proc = proc;
3009         pmac_early_vresume_data = data;
3010         preempt_enable();
3011 }
3012 EXPORT_SYMBOL(pmac_set_early_video_resume);
3013
3014 void pmac_call_early_video_resume(void)
3015 {
3016         if (pmac_early_vresume_proc)
3017                 pmac_early_vresume_proc(pmac_early_vresume_data);
3018 }
3019
3020 /*
3021  * AGP related suspend/resume code
3022  */
3023
3024 static struct pci_dev *pmac_agp_bridge;
3025 static int (*pmac_agp_suspend)(struct pci_dev *bridge);
3026 static int (*pmac_agp_resume)(struct pci_dev *bridge);
3027
3028 void pmac_register_agp_pm(struct pci_dev *bridge,
3029                                  int (*suspend)(struct pci_dev *bridge),
3030                                  int (*resume)(struct pci_dev *bridge))
3031 {
3032         if (suspend || resume) {
3033                 pmac_agp_bridge = bridge;
3034                 pmac_agp_suspend = suspend;
3035                 pmac_agp_resume = resume;
3036                 return;
3037         }
3038         if (bridge != pmac_agp_bridge)
3039                 return;
3040         pmac_agp_suspend = pmac_agp_resume = NULL;
3041         return;
3042 }
3043 EXPORT_SYMBOL(pmac_register_agp_pm);
3044
3045 void pmac_suspend_agp_for_card(struct pci_dev *dev)
3046 {
3047         if (pmac_agp_bridge == NULL || pmac_agp_suspend == NULL)
3048                 return;
3049         if (pmac_agp_bridge->bus != dev->bus)
3050                 return;
3051         pmac_agp_suspend(pmac_agp_bridge);
3052 }
3053 EXPORT_SYMBOL(pmac_suspend_agp_for_card);
3054
3055 void pmac_resume_agp_for_card(struct pci_dev *dev)
3056 {
3057         if (pmac_agp_bridge == NULL || pmac_agp_resume == NULL)
3058                 return;
3059         if (pmac_agp_bridge->bus != dev->bus)
3060                 return;
3061         pmac_agp_resume(pmac_agp_bridge);
3062 }
3063 EXPORT_SYMBOL(pmac_resume_agp_for_card);