i386/linux-2.3.21/arch/ppc/kernel/pmac_setup.c

   1 /*
   2  *  linux/arch/ppc/kernel/setup.c
   3  *
   4  *  PowerPC version
   5  *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
   6  *
   7  *  Adapted for Power Macintosh by Paul Mackerras
   8  *    Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
   9  *
  10  *  Derived from "arch/alpha/kernel/setup.c"
  11  *    Copyright (C) 1995 Linus Torvalds
  12  *
  13  *  This program is free software; you can redistribute it and/or
  14  *  modify it under the terms of the GNU General Public License
  15  *  as published by the Free Software Foundation; either version
  16  *  2 of the License, or (at your option) any later version.
  17  *
  18  */
  19
  20 /*
  21  * bootup setup stuff..
  22  */
  23
  24 #include <linux/config.h>
  25 #include <linux/init.h>
  26 #include <linux/errno.h>
  27 #include <linux/sched.h>
  28 #include <linux/kernel.h>
  29 #include <linux/mm.h>
  30 #include <linux/stddef.h>
  31 #include <linux/unistd.h>
  32 #include <linux/ptrace.h>
  33 #include <linux/malloc.h>
  34 #include <linux/user.h>
  35 #include <linux/a.out.h>
  36 #include <linux/tty.h>
  37 #include <linux/string.h>
  38 #include <linux/delay.h>
  39 #include <linux/ioport.h>
  40 #include <linux/major.h>
  41 #include <linux/blk.h>
  42 #include <linux/vt_kern.h>
  43 #include <linux/console.h>
  44 #include <linux/ide.h>
  45 #include <linux/pci.h>
  46 #include <linux/adb.h>
  47 #include <linux/cuda.h>
  48 #include <linux/pmu.h>
  49
  50 #include <asm/init.h>
  51 #include <asm/prom.h>
  52 #include <asm/system.h>
  53 #include <asm/pgtable.h>
  54 #include <asm/bitops.h>
  55 #include <asm/io.h>
  56 #include <asm/pci-bridge.h>
  57 #include <asm/ohare.h>
  58 #include <asm/mediabay.h>
  59 #include <asm/feature.h>
  60 #include <asm/ide.h>
  61 #include <asm/machdep.h>
  62 #include <asm/keyboard.h>
  63 #include <asm/dma.h>
  64
  65 #include "time.h"
  66 #include "local_irq.h"
  67 #include "pmac_pic.h"
  68
  69 #undef SHOW_GATWICK_IRQS
  70
  71 unsigned long pmac_get_rtc_time(void);
  72 int pmac_set_rtc_time(unsigned long nowtime);
  73 void pmac_read_rtc_time(void);
  74 void pmac_calibrate_decr(void);
  75 void pmac_setup_pci_ptrs(void);
  76
  77 extern int mackbd_setkeycode(unsigned int scancode, unsigned int keycode);
  78 extern int mackbd_getkeycode(unsigned int scancode);
  79 extern int mackbd_translate(unsigned char scancode, unsigned char *keycode,
  80                            char raw_mode);
  81 extern char mackbd_unexpected_up(unsigned char keycode);
  82 extern void mackbd_leds(unsigned char leds);
  83 extern void mackbd_init_hw(void);
  84 #ifdef CONFIG_MAGIC_SYSRQ
  85 unsigned char mackbd_sysrq_xlate[128];
  86 #endif /* CONFIG_MAGIC_SYSRQ */
  87 extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);
  88 extern int pckbd_getkeycode(unsigned int scancode);
  89 extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,
  90                            char raw_mode);
  91 extern char pckbd_unexpected_up(unsigned char keycode);
  92 extern void pckbd_leds(unsigned char leds);
  93 extern void pckbd_init_hw(void);
  94
  95 unsigned char drive_info;
  96
  97 int ppc_override_l2cr = 0;
  98 int ppc_override_l2cr_value;
  99
 100 extern char saved_command_line[];
 101
 102 #define DEFAULT_ROOT_DEVICE 0x0801      /* sda1 - slightly silly choice */
 103
 104 extern void zs_kgdb_hook(int tty_num);
 105 static void ohare_init(void);
 106 static void init_p2pbridge(void);
 107
 108 __pmac
 109 int
 110 pmac_get_cpuinfo(char *buffer)
 111 {
 112         int len;
 113         struct device_node *np;
 114         char *pp;
 115         int plen;
 116
 117         /* find motherboard type */
 118         len = sprintf(buffer, "machine\t\t: ");
 119         np = find_devices("device-tree");
 120         if (np != NULL) {
 121                 pp = (char *) get_property(np, "model", NULL);
 122                 if (pp != NULL)
 123                         len += sprintf(buffer+len, "%s\n", pp);
 124                 else
 125                         len += sprintf(buffer+len, "PowerMac\n");
 126                 pp = (char *) get_property(np, "compatible", &plen);
 127                 if (pp != NULL) {
 128                         len += sprintf(buffer+len, "motherboard\t:");
 129                         while (plen > 0) {
 130                                 int l = strlen(pp) + 1;
 131                                 len += sprintf(buffer+len, " %s", pp);
 132                                 plen -= l;
 133                                 pp += l;
 134                         }
 135                         buffer[len++] = '\n';
 136                 }
 137         } else
 138                 len += sprintf(buffer+len, "PowerMac\n");
 139
 140         /* find l2 cache info */
 141         np = find_devices("l2-cache");
 142         if (np == 0)
 143                 np = find_type_devices("cache");
 144         if (np != 0) {
 145                 unsigned int *ic = (unsigned int *)
 146                         get_property(np, "i-cache-size", NULL);
 147                 unsigned int *dc = (unsigned int *)
 148                         get_property(np, "d-cache-size", NULL);
 149                 len += sprintf(buffer+len, "L2 cache\t:");
 150                 if (get_property(np, "cache-unified", NULL) != 0 && dc) {
 151                         len += sprintf(buffer+len, " %dK unified", *dc / 1024);
 152                 } else {
 153                         if (ic)
 154                                 len += sprintf(buffer+len, " %dK instruction",
 155                                                *ic / 1024);
 156                         if (dc)
 157                                 len += sprintf(buffer+len, "%s %dK data",
 158                                                (ic? " +": ""), *dc / 1024);
 159                 }
 160                 pp = get_property(np, "ram-type", NULL);
 161                 if (pp)
 162                         len += sprintf(buffer+len, " %s", pp);
 163                 buffer[len++] = '\n';
 164         }
 165
 166         /* find ram info */
 167         np = find_devices("memory");
 168         if (np != 0) {
 169                 int n;
 170                 struct reg_property *reg = (struct reg_property *)
 171                         get_property(np, "reg", &n);
 172
 173                 if (reg != 0) {
 174                         unsigned long total = 0;
 175
 176                         for (n /= sizeof(struct reg_property); n > 0; --n)
 177                                 total += (reg++)->size;
 178                         len += sprintf(buffer+len, "memory\t\t: %luMB\n",
 179                                        total >> 20);
 180                 }
 181         }
 182
 183         /* Checks "l2cr-value" property in the registry */
 184         np = find_devices("cpus");
 185         if (np == 0)
 186                 np = find_type_devices("cpu");
 187         if (np != 0) {
 188                 unsigned int *l2cr = (unsigned int *)
 189                         get_property(np, "l2cr-value", NULL);
 190                 if (l2cr != 0) {
 191                         len += sprintf(buffer+len, "l2cr override\t: 0x%x\n", *l2cr);
 192                 }
 193         }
 194
 195         return len;
 196 }
 197
 198 #ifdef CONFIG_SCSI
 199 /* Find the device number for the disk (if any) at target tgt
 200    on host adaptor host.
 201    XXX this really really should be in drivers/scsi/sd.c. */
 202 #include <linux/blkdev.h>
 203 #include "../../../drivers/scsi/scsi.h"
 204 #include "../../../drivers/scsi/sd.h"
 205 #include "../../../drivers/scsi/hosts.h"
 206
 207 #define SD_MAJOR(i)             (!(i) ? SCSI_DISK0_MAJOR : SCSI_DISK1_MAJOR-1+(i))
 208 #define SD_MAJOR_NUMBER(i)      SD_MAJOR((i) >> 8)
 209 #define SD_MINOR_NUMBER(i)      ((i) & 255)
 210 #define MKDEV_SD_PARTITION(i)   MKDEV(SD_MAJOR_NUMBER(i), SD_MINOR_NUMBER(i))
 211 #define MKDEV_SD(index)         MKDEV_SD_PARTITION((index) << 4)
 212
 213 __init
 214 kdev_t sd_find_target(void *host, int tgt)
 215 {
 216     Scsi_Disk *dp;
 217     int i;
 218 #ifdef CONFIG_BLK_DEV_SD
 219     for (dp = rscsi_disks, i = 0; i < sd_template.dev_max; ++i, ++dp)
 220         if (dp->device != NULL && dp->device->host == host
 221             && dp->device->id == tgt)
 222             return MKDEV_SD(i);
 223 #endif /* CONFIG_BLK_DEV_SD */
 224     return 0;
 225 }
 226 #endif
 227
 228 /*
 229  * Dummy mksound function that does nothing.
 230  * The real one is in the dmasound driver.
 231  */
 232 __pmac
 233 static void
 234 pmac_mksound(unsigned int hz, unsigned int ticks)
 235 {
 236 }
 237
 238 static volatile u32 *sysctrl_regs;
 239
 240 void __init
 241 pmac_setup_arch(unsigned long *memory_start_p, unsigned long *memory_end_p)
 242 {
 243         struct device_node *cpu;
 244         int *fp;
 245
 246         /* Set loops_per_sec to a half-way reasonable value,
 247            for use until calibrate_delay gets called. */
 248         cpu = find_type_devices("cpu");
 249         if (cpu != 0) {
 250                 fp = (int *) get_property(cpu, "clock-frequency", NULL);
 251                 if (fp != 0) {
 252                         switch (_get_PVR() >> 16) {
 253                         case 4:         /* 604 */
 254                         case 9:         /* 604e */
 255                         case 10:        /* mach V (604ev5) */
 256                         case 20:        /* 620 */
 257                                 loops_per_sec = *fp;
 258                                 break;
 259                         default:        /* 601, 603, etc. */
 260                                 loops_per_sec = *fp / 2;
 261                         }
 262                 } else
 263                         loops_per_sec = 50000000;
 264         }
 265
 266         /* this area has the CPU identification register
 267            and some registers used by smp boards */
 268         sysctrl_regs = (volatile u32 *) ioremap(0xf8000000, 0x1000);
 269         __ioremap(0xffc00000, 0x400000, pgprot_val(PAGE_READONLY));
 270         ohare_init();
 271
 272         *memory_start_p = pmac_find_bridges(*memory_start_p, *memory_end_p);
 273         init_p2pbridge();
 274
 275         /* Checks "l2cr-value" property in the registry */
 276         if ( (_get_PVR() >> 16) == 8) {
 277                 struct device_node *np = find_devices("cpus");
 278                 if (np == 0)
 279                         np = find_type_devices("cpu");
 280                 if (np != 0) {
 281                         unsigned int *l2cr = (unsigned int *)
 282                                 get_property(np, "l2cr-value", NULL);
 283                         if (l2cr != 0) {
 284                                 ppc_override_l2cr = 1;
 285                                 ppc_override_l2cr_value = *l2cr;
 286                                 _set_L2CR(0);
 287                                 _set_L2CR(ppc_override_l2cr_value);
 288                         }
 289                 }
 290         }
 291
 292         if (ppc_override_l2cr)
 293                 printk(KERN_INFO "L2CR overriden (0x%x), backside cache is %s\n",
 294                         ppc_override_l2cr_value, (ppc_override_l2cr_value & 0x80000000)
 295                                 ? "enabled" : "disabled");
 296
 297         feature_init();
 298
 299 #ifdef CONFIG_KGDB
 300         zs_kgdb_hook(0);
 301 #endif
 302
 303 #ifdef CONFIG_ADB_CUDA
 304         find_via_cuda();
 305 #endif
 306 #ifdef CONFIG_ADB_PMU
 307         find_via_pmu();
 308 #endif
 309
 310 #ifdef CONFIG_DUMMY_CONSOLE
 311         conswitchp = &dummy_con;
 312 #endif
 313
 314         kd_mksound = pmac_mksound;
 315
 316 #ifdef CONFIG_BLK_DEV_INITRD
 317         if (initrd_start)
 318                 ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
 319         else
 320 #endif
 321                 ROOT_DEV = to_kdev_t(DEFAULT_ROOT_DEVICE);
 322 }
 323
 324 /*
 325  * Tweak the PCI-PCI bridge chip on the blue & white G3s.
 326  */
 327 static void __init init_p2pbridge(void)
 328 {
 329         struct device_node *p2pbridge;
 330         unsigned char bus, devfn;
 331         unsigned short val;
 332
 333         /* XXX it would be better here to identify the specific
 334            PCI-PCI bridge chip we have. */
 335         if ((p2pbridge = find_devices("pci-bridge")) == 0
 336             || p2pbridge->parent == NULL
 337             || strcmp(p2pbridge->parent->name, "pci") != 0)
 338                 return;
 339
 340         if (pci_device_loc(p2pbridge, &bus, &devfn) < 0)
 341                 return;
 342
 343         pcibios_read_config_word(bus, devfn, PCI_BRIDGE_CONTROL, &val);
 344         val &= ~PCI_BRIDGE_CTL_MASTER_ABORT;
 345         pcibios_write_config_word(bus, devfn, PCI_BRIDGE_CONTROL, val);
 346         pcibios_read_config_word(bus, devfn, PCI_BRIDGE_CONTROL, &val);
 347 }
 348
 349 static void __init ohare_init(void)
 350 {
 351         /*
 352          * Turn on the L2 cache.
 353          * We assume that we have a PSX memory controller iff
 354          * we have an ohare I/O controller.
 355          */
 356         if (find_devices("ohare") != NULL) {
 357                 if (((sysctrl_regs[2] >> 24) & 0xf) >= 3) {
 358                         if (sysctrl_regs[4] & 0x10)
 359                                 sysctrl_regs[4] |= 0x04000020;
 360                         else
 361                                 sysctrl_regs[4] |= 0x04000000;
 362                         printk(KERN_INFO "Level 2 cache enabled\n");
 363                 }
 364         }
 365 }
 366
 367 extern char *bootpath;
 368 extern char *bootdevice;
 369 void *boot_host;
 370 int boot_target;
 371 int boot_part;
 372 kdev_t boot_dev;
 373
 374 void __init
 375 pmac_init2(void)
 376 {
 377         pmac_nvram_init();
 378 #ifdef CONFIG_PMAC_PBOOK
 379         media_bay_init();
 380 #endif
 381 }
 382
 383 #ifdef CONFIG_SCSI
 384 void __init
 385 note_scsi_host(struct device_node *node, void *host)
 386 {
 387         int l;
 388         char *p;
 389
 390         l = strlen(node->full_name);
 391         if (bootpath != NULL && bootdevice != NULL
 392             && strncmp(node->full_name, bootdevice, l) == 0
 393             && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
 394                 boot_host = host;
 395                 /*
 396                  * There's a bug in OF 1.0.5.  (Why am I not surprised.)
 397                  * If you pass a path like scsi/sd@1:0 to canon, it returns
 398                  * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
 399                  * That is, the scsi target number doesn't get preserved.
 400                  * So we pick the target number out of bootpath and use that.
 401                  */
 402                 p = strstr(bootpath, "/sd@");
 403                 if (p != NULL) {
 404                         p += 4;
 405                         boot_target = simple_strtoul(p, NULL, 10);
 406                         p = strchr(p, ':');
 407                         if (p != NULL)
 408                                 boot_part = simple_strtoul(p + 1, NULL, 10);
 409                 }
 410         }
 411 }
 412 #endif
 413
 414 #ifdef CONFIG_BLK_DEV_IDE_PMAC
 415 extern int pmac_ide_count;
 416 extern struct device_node *pmac_ide_node[];
 417 static int ide_majors[] = { 3, 22, 33, 34, 56, 57, 88, 89 };
 418
 419 kdev_t __init find_ide_boot(void)
 420 {
 421         char *p;
 422         int i, n;
 423
 424         if (bootdevice == NULL)
 425                 return 0;
 426         p = strrchr(bootdevice, '/');
 427         if (p == NULL)
 428                 return 0;
 429         n = p - bootdevice;
 430
 431         /*
 432          * Look through the list of IDE interfaces for this one.
 433          */
 434         for (i = 0; i < pmac_ide_count; ++i) {
 435                 char *name = pmac_ide_node[i]->full_name;
 436                 if (memcmp(name, bootdevice, n) == 0 && name[n] == 0) {
 437                         /* XXX should cope with the 2nd drive as well... */
 438                         return MKDEV(ide_majors[i], 0);
 439                 }
 440         }
 441
 442         return 0;
 443 }
 444 #endif /* CONFIG_BLK_DEV_IDE_PMAC */
 445
 446 void __init find_boot_device(void)
 447 {
 448 #ifdef CONFIG_SCSI
 449         if (boot_host != NULL) {
 450                 boot_dev = sd_find_target(boot_host, boot_target);
 451                 if (boot_dev != 0)
 452                         return;
 453         }
 454 #endif
 455 #ifdef CONFIG_BLK_DEV_IDE_PMAC
 456         boot_dev = find_ide_boot();
 457 #endif
 458 }
 459
 460 /* can't be __init - can be called whenever a disk is first accessed */
 461 __pmac
 462 void note_bootable_part(kdev_t dev, int part)
 463 {
 464         static int found_boot = 0;
 465         char *p;
 466
 467         /* Do nothing if the root has been set already. */
 468         if (ROOT_DEV != to_kdev_t(DEFAULT_ROOT_DEVICE))
 469                 return;
 470         p = strstr(saved_command_line, "root=");
 471         if (p != NULL && (p == saved_command_line || p[-1] == ' '))
 472                 return;
 473
 474         if (!found_boot) {
 475                 find_boot_device();
 476                 found_boot = 1;
 477         }
 478         if (dev == boot_dev) {
 479                 ROOT_DEV = MKDEV(MAJOR(dev), MINOR(dev) + part);
 480                 boot_dev = NODEV;
 481                 printk(" (root)");
 482         }
 483 }
 484
 485 void
 486 pmac_restart(char *cmd)
 487 {
 488 #ifdef CONFIG_ADB_CUDA
 489         struct adb_request req;
 490 #endif /* CONFIG_ADB_CUDA */
 491
 492         switch (sys_ctrler) {
 493 #ifdef CONFIG_ADB_CUDA
 494         case SYS_CTRLER_CUDA:
 495                 cuda_request(&req, NULL, 2, CUDA_PACKET,
 496                              CUDA_RESET_SYSTEM);
 497                 for (;;)
 498                         cuda_poll();
 499                 break;
 500 #endif /* CONFIG_ADB_CUDA */
 501 #ifdef CONFIG_ADB_PMU
 502         case SYS_CTRLER_PMU:
 503                 pmu_restart();
 504                 break;
 505 #endif /* CONFIG_ADB_PMU */
 506         default:
 507         }
 508 }
 509
 510 void
 511 pmac_power_off(void)
 512 {
 513 #ifdef CONFIG_ADB_CUDA
 514         struct adb_request req;
 515 #endif /* CONFIG_ADB_CUDA */
 516
 517         switch (sys_ctrler) {
 518 #ifdef CONFIG_ADB_CUDA
 519         case SYS_CTRLER_CUDA:
 520                 cuda_request(&req, NULL, 2, CUDA_PACKET,
 521                              CUDA_POWERDOWN);
 522                 for (;;)
 523                         cuda_poll();
 524                 break;
 525 #endif /* CONFIG_ADB_CUDA */
 526 #ifdef CONFIG_ADB_PMU
 527         case SYS_CTRLER_PMU:
 528                 pmu_shutdown();
 529                 break;
 530 #endif /* CONFIG_ADB_PMU */
 531         default:
 532         }
 533 }
 534
 535 void
 536 pmac_halt(void)
 537 {
 538    pmac_power_off();
 539 }
 540
 541
 542 #if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
 543 /*
 544  * IDE stuff.
 545  */
 546 void
 547 pmac_ide_insw(ide_ioreg_t port, void *buf, int ns)
 548 {
 549         _insw_ns((unsigned short *)(port+_IO_BASE), buf, ns);
 550 }
 551
 552 void
 553 pmac_ide_outsw(ide_ioreg_t port, void *buf, int ns)
 554 {
 555         _outsw_ns((unsigned short *)(port+_IO_BASE), buf, ns);
 556 }
 557
 558 int
 559 pmac_ide_default_irq(ide_ioreg_t base)
 560 {
 561         return 0;
 562 }
 563
 564 ide_ioreg_t
 565 pmac_ide_default_io_base(int index)
 566 {
 567 #if defined(CONFIG_BLK_DEV_IDE_PMAC)
 568         return pmac_ide_regbase[index];
 569 #else
 570         return 0;
 571 #endif
 572 }
 573
 574 int
 575 pmac_ide_check_region(ide_ioreg_t from, unsigned int extent)
 576 {
 577         return 0;
 578 }
 579
 580 void
 581 pmac_ide_request_region(ide_ioreg_t from,
 582                         unsigned int extent,
 583                         const char *name)
 584 {
 585 }
 586
 587 void
 588 pmac_ide_release_region(ide_ioreg_t from,
 589                         unsigned int extent)
 590 {
 591 }
 592
 593 /* Convert the shorts/longs in hd_driveid from little to big endian;
 594  * chars are endian independant, of course, but strings need to be flipped.
 595  * (Despite what it says in drivers/block/ide.h, they come up as little
 596  * endian...)
 597  *
 598  * Changes to linux/hdreg.h may require changes here. */
 599 void
 600 pmac_ide_fix_driveid(struct hd_driveid *id)
 601 {
 602         ppc_generic_ide_fix_driveid(id);
 603 }
 604
 605 #if defined(CONFIG_BLK_DEV_IDE_PMAC)
 606 /* This is declared in drivers/block/ide-pmac.c */
 607 void pmac_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq);
 608 #else
 609 /*
 610  * This registers the standard ports for this architecture with the IDE
 611  * driver.
 612  */
 613 void pmac_ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
 614 {
 615 }
 616 #endif
 617 #endif
 618
 619 void __init
 620 pmac_init(unsigned long r3, unsigned long r4, unsigned long r5,
 621           unsigned long r6, unsigned long r7)
 622 {
 623         pmac_setup_pci_ptrs();
 624
 625         /* isa_io_base gets set in pmac_find_bridges */
 626         isa_mem_base = PMAC_ISA_MEM_BASE;
 627         pci_dram_offset = PMAC_PCI_DRAM_OFFSET;
 628         ISA_DMA_THRESHOLD = ~0L;
 629         DMA_MODE_READ = 1;
 630         DMA_MODE_WRITE = 2;
 631
 632         ppc_md.setup_arch     = pmac_setup_arch;
 633         ppc_md.setup_residual = NULL;
 634         ppc_md.get_cpuinfo    = pmac_get_cpuinfo;
 635         ppc_md.irq_cannonicalize = NULL;
 636         ppc_md.init_IRQ       = pmac_pic_init;
 637         ppc_md.get_irq        = pmac_get_irq;
 638         ppc_md.init           = pmac_init2;
 639
 640         ppc_md.restart        = pmac_restart;
 641         ppc_md.power_off      = pmac_power_off;
 642         ppc_md.halt           = pmac_halt;
 643
 644         ppc_md.time_init      = NULL;
 645         ppc_md.set_rtc_time   = pmac_set_rtc_time;
 646         ppc_md.get_rtc_time   = pmac_get_rtc_time;
 647         ppc_md.calibrate_decr = pmac_calibrate_decr;
 648
 649 #if defined(CONFIG_VT) && defined(CONFIG_ADB_KEYBOARD)
 650         ppc_md.kbd_setkeycode    = mackbd_setkeycode;
 651         ppc_md.kbd_getkeycode    = mackbd_getkeycode;
 652         ppc_md.kbd_translate     = mackbd_translate;
 653         ppc_md.kbd_unexpected_up = mackbd_unexpected_up;
 654         ppc_md.kbd_leds          = mackbd_leds;
 655         ppc_md.kbd_init_hw       = mackbd_init_hw;
 656 #ifdef CONFIG_MAGIC_SYSRQ
 657         ppc_md.ppc_kbd_sysrq_xlate       = mackbd_sysrq_xlate;
 658         SYSRQ_KEY = 0x69;
 659 #endif
 660 #endif
 661
 662 #if defined(CONFIG_BLK_DEV_IDE_PMAC)
 663         ppc_ide_md.insw = pmac_ide_insw;
 664         ppc_ide_md.outsw = pmac_ide_outsw;
 665         ppc_ide_md.default_irq = pmac_ide_default_irq;
 666         ppc_ide_md.default_io_base = pmac_ide_default_io_base;
 667         ppc_ide_md.ide_check_region = pmac_ide_check_region;
 668         ppc_ide_md.ide_request_region = pmac_ide_request_region;
 669         ppc_ide_md.ide_release_region = pmac_ide_release_region;
 670         ppc_ide_md.fix_driveid = pmac_ide_fix_driveid;
 671         ppc_ide_md.ide_init_hwif = pmac_ide_init_hwif_ports;
 672
 673         ppc_ide_md.io_base = _IO_BASE;  /* actually too early for this :-( */
 674 #endif
 675 }