drivers/ide/pci/pdc202xx_new.c

   1 /*
   2  *  Promise TX2/TX4/TX2000/133 IDE driver
   3  *
   4  *  This program is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU General Public License
   6  *  as published by the Free Software Foundation; either version
   7  *  2 of the License, or (at your option) any later version.
   8  *
   9  *  Split from:
  10  *  linux/drivers/ide/pdc202xx.c        Version 0.35    Mar. 30, 2002
  11  *  Copyright (C) 1998-2002             Andre Hedrick <andre@linux-ide.org>
  12  *  Portions Copyright (C) 1999 Promise Technology, Inc.
  13  *  Author: Frank Tiernan (frankt@promise.com)
  14  *  Released under terms of General Public License
  15  */
  16
  17 #include <linux/config.h>
  18 #include <linux/module.h>
  19 #include <linux/types.h>
  20 #include <linux/kernel.h>
  21 #include <linux/delay.h>
  22 #include <linux/timer.h>
  23 #include <linux/mm.h>
  24 #include <linux/ioport.h>
  25 #include <linux/blkdev.h>
  26 #include <linux/hdreg.h>
  27 #include <linux/interrupt.h>
  28 #include <linux/pci.h>
  29 #include <linux/init.h>
  30 #include <linux/ide.h>
  31
  32 #include <asm/io.h>
  33 #include <asm/irq.h>
  34
  35 #ifdef CONFIG_PPC_PMAC
  36 #include <asm/prom.h>
  37 #include <asm/pci-bridge.h>
  38 #endif
  39
  40 #include "pdc202xx_new.h"
  41
  42 #define PDC202_DEBUG_CABLE      0
  43
  44 #if defined(DISPLAY_PDC202XX_TIMINGS) && defined(CONFIG_PROC_FS)
  45 #include <linux/stat.h>
  46 #include <linux/proc_fs.h>
  47
  48 static u8 pdcnew_proc = 0;
  49 #define PDC202_MAX_DEVS         5
  50 static struct pci_dev *pdc202_devs[PDC202_MAX_DEVS];
  51 static int n_pdc202_devs;
  52
  53 static char * pdcnew_info(char *buf, struct pci_dev *dev)
  54 {
  55         char *p = buf;
  56
  57         p += sprintf(p, "\n                                ");
  58         switch(dev->device) {
  59                 case PCI_DEVICE_ID_PROMISE_20277:
  60                         p += sprintf(p, "SBFastTrak 133 Lite"); break;
  61                 case PCI_DEVICE_ID_PROMISE_20276:
  62                         p += sprintf(p, "MBFastTrak 133 Lite"); break;
  63                 case PCI_DEVICE_ID_PROMISE_20275:
  64                         p += sprintf(p, "MBUltra133"); break;
  65                 case PCI_DEVICE_ID_PROMISE_20271:
  66                         p += sprintf(p, "FastTrak TX2000"); break;
  67                 case PCI_DEVICE_ID_PROMISE_20270:
  68                         p += sprintf(p, "FastTrak LP/TX2/TX4"); break;
  69                 case PCI_DEVICE_ID_PROMISE_20269:
  70                         p += sprintf(p, "Ultra133 TX2"); break;
  71                 case PCI_DEVICE_ID_PROMISE_20268:
  72                         p += sprintf(p, "Ultra100 TX2"); break;
  73                 default:
  74                         p += sprintf(p, "Ultra series"); break;
  75                         break;
  76         }
  77         p += sprintf(p, " Chipset.\n");
  78         return (char *)p;
  79 }
  80
  81 static int pdcnew_get_info (char *buffer, char **addr, off_t offset, int count)
  82 {
  83         char *p = buffer;
  84         int i, len;
  85
  86         for (i = 0; i < n_pdc202_devs; i++) {
  87                 struct pci_dev *dev     = pdc202_devs[i];
  88                 p = pdcnew_info(buffer, dev);
  89         }
  90         /* p - buffer must be less than 4k! */
  91         len = (p - buffer) - offset;
  92         *addr = buffer + offset;
  93
  94         return len > count ? count : len;
  95 }
  96 #endif  /* defined(DISPLAY_PDC202XX_TIMINGS) && defined(CONFIG_PROC_FS) */
  97
  98
  99 static u8 pdcnew_ratemask (ide_drive_t *drive)
 100 {
 101         u8 mode;
 102
 103         switch(HWIF(drive)->pci_dev->device) {
 104                 case PCI_DEVICE_ID_PROMISE_20277:
 105                 case PCI_DEVICE_ID_PROMISE_20276:
 106                 case PCI_DEVICE_ID_PROMISE_20275:
 107                 case PCI_DEVICE_ID_PROMISE_20271:
 108                 case PCI_DEVICE_ID_PROMISE_20269:
 109                         mode = 4;
 110                         break;
 111                 case PCI_DEVICE_ID_PROMISE_20270:
 112                 case PCI_DEVICE_ID_PROMISE_20268:
 113                         mode = 3;
 114                         break;
 115                 default:
 116                         return 0;
 117         }
 118         if (!eighty_ninty_three(drive))
 119                 mode = min(mode, (u8)1);
 120         return mode;
 121 }
 122
 123 static int check_in_drive_lists (ide_drive_t *drive, const char **list)
 124 {
 125         struct hd_driveid *id = drive->id;
 126
 127         if (pdc_quirk_drives == list) {
 128                 while (*list) {
 129                         if (strstr(id->model, *list++)) {
 130                                 return 2;
 131                         }
 132                 }
 133         } else {
 134                 while (*list) {
 135                         if (!strcmp(*list++,id->model)) {
 136                                 return 1;
 137                         }
 138                 }
 139         }
 140         return 0;
 141 }
 142
 143 static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 144 {
 145         ide_hwif_t *hwif        = HWIF(drive);
 146         unsigned long indexreg  = hwif->dma_vendor1;
 147         unsigned long datareg   = hwif->dma_vendor3;
 148         u8 thold                = 0x10;
 149         u8 adj                  = (drive->dn%2) ? 0x08 : 0x00;
 150         u8 speed                = ide_rate_filter(pdcnew_ratemask(drive), xferspeed);
 151
 152         if (speed == XFER_UDMA_2) {
 153                 hwif->OUTB((thold + adj), indexreg);
 154                 hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
 155         }
 156
 157         switch (speed) {
 158                 case XFER_UDMA_7:
 159                         speed = XFER_UDMA_6;
 160                 case XFER_UDMA_6:       set_ultra(0x1a, 0x01, 0xcb); break;
 161                 case XFER_UDMA_5:       set_ultra(0x1a, 0x02, 0xcb); break;
 162                 case XFER_UDMA_4:       set_ultra(0x1a, 0x03, 0xcd); break;
 163                 case XFER_UDMA_3:       set_ultra(0x1a, 0x05, 0xcd); break;
 164                 case XFER_UDMA_2:       set_ultra(0x2a, 0x07, 0xcd); break;
 165                 case XFER_UDMA_1:       set_ultra(0x3a, 0x0a, 0xd0); break;
 166                 case XFER_UDMA_0:       set_ultra(0x4a, 0x0f, 0xd5); break;
 167                 case XFER_MW_DMA_2:     set_ata2(0x69, 0x25); break;
 168                 case XFER_MW_DMA_1:     set_ata2(0x6b, 0x27); break;
 169                 case XFER_MW_DMA_0:     set_ata2(0xdf, 0x5f); break;
 170                 case XFER_PIO_4:        set_pio(0x23, 0x09, 0x25); break;
 171                 case XFER_PIO_3:        set_pio(0x27, 0x0d, 0x35); break;
 172                 case XFER_PIO_2:        set_pio(0x23, 0x26, 0x64); break;
 173                 case XFER_PIO_1:        set_pio(0x46, 0x29, 0xa4); break;
 174                 case XFER_PIO_0:        set_pio(0xfb, 0x2b, 0xac); break;
 175                 default:
 176                         ;
 177         }
 178
 179         return (ide_config_drive_speed(drive, speed));
 180 }
 181
 182 /*   0    1    2    3    4    5    6   7   8
 183  * 960, 480, 390, 300, 240, 180, 120, 90, 60
 184  *           180, 150, 120,  90,  60
 185  * DMA_Speed
 186  * 180, 120,  90,  90,  90,  60,  30
 187  *  11,   5,   4,   3,   2,   1,   0
 188  */
 189 static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
 190 {
 191         u8 speed;
 192
 193         if (pio == 5) pio = 4;
 194         speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);
 195
 196         (void)pdcnew_new_tune_chipset(drive, speed);
 197 }
 198
 199 static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
 200 {
 201         hwif->OUTB(0x0b, hwif->dma_vendor1);
 202         return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
 203 }
 204 static int config_chipset_for_dma (ide_drive_t *drive)
 205 {
 206         struct hd_driveid *id   = drive->id;
 207         ide_hwif_t *hwif        = HWIF(drive);
 208         u8 speed                = -1;
 209         u8 cable;
 210
 211         u8 ultra_66             = ((id->dma_ultra & 0x0010) ||
 212                                    (id->dma_ultra & 0x0008)) ? 1 : 0;
 213
 214         cable = pdcnew_new_cable_detect(hwif);
 215
 216         if (ultra_66 && cable) {
 217                 printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
 218                 printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
 219         }
 220
 221         if (drive->media != ide_disk)
 222                 return 0;
 223         if (id->capability & 4) {       /* IORDY_EN & PREFETCH_EN */
 224                 hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
 225                 hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3);
 226         }
 227
 228         speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
 229
 230         if (!(speed)) {
 231                 hwif->tuneproc(drive, 5);
 232                 return 0;
 233         }
 234
 235         (void) hwif->speedproc(drive, speed);
 236         return ide_dma_enable(drive);
 237 }
 238
 239 static int pdcnew_config_drive_xfer_rate (ide_drive_t *drive)
 240 {
 241         ide_hwif_t *hwif        = HWIF(drive);
 242         struct hd_driveid *id   = drive->id;
 243
 244         drive->init_speed = 0;
 245
 246         if (id && (id->capability & 1) && drive->autodma) {
 247                 /* Consult the list of known "bad" drives */
 248                 if (__ide_dma_bad_drive(drive))
 249                         goto fast_ata_pio;
 250                 if (id->field_valid & 4) {
 251                         if (id->dma_ultra & hwif->ultra_mask) {
 252                                 /* Force if Capable UltraDMA */
 253                                 int dma = config_chipset_for_dma(drive);
 254                                 if ((id->field_valid & 2) && !dma)
 255                                         goto try_dma_modes;
 256                         }
 257                 } else if (id->field_valid & 2) {
 258 try_dma_modes:
 259                         if ((id->dma_mword & hwif->mwdma_mask) ||
 260                             (id->dma_1word & hwif->swdma_mask)) {
 261                                 /* Force if Capable regular DMA modes */
 262                                 if (!config_chipset_for_dma(drive))
 263                                         goto no_dma_set;
 264                         }
 265                 } else if (__ide_dma_good_drive(drive) &&
 266                             (id->eide_dma_time < 150)) {
 267                                 goto no_dma_set;
 268                         /* Consult the list of known "good" drives */
 269                         if (!config_chipset_for_dma(drive))
 270                                 goto no_dma_set;
 271                 } else {
 272                         goto fast_ata_pio;
 273                 }
 274                 return hwif->ide_dma_on(drive);
 275         } else if ((id->capability & 8) || (id->field_valid & 2)) {
 276 fast_ata_pio:
 277 no_dma_set:
 278                 hwif->tuneproc(drive, 5);
 279                 return hwif->ide_dma_off_quietly(drive);
 280         }
 281         /* IORDY not supported */
 282         return 0;
 283 }
 284
 285 static int pdcnew_quirkproc (ide_drive_t *drive)
 286 {
 287         return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
 288 }
 289
 290 static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
 291 {
 292         if (HWIF(drive)->resetproc != NULL)
 293                 HWIF(drive)->resetproc(drive);
 294         return __ide_dma_lostirq(drive);
 295 }
 296
 297 static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
 298 {
 299         if (HWIF(drive)->resetproc != NULL)
 300                 HWIF(drive)->resetproc(drive);
 301         return __ide_dma_timeout(drive);
 302 }
 303
 304 static void pdcnew_new_reset (ide_drive_t *drive)
 305 {
 306         /*
 307          * Deleted this because it is redundant from the caller.
 308          */
 309         printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
 310                 HWIF(drive)->channel ? "Secondary" : "Primary");
 311 }
 312
 313 static void pdcnew_reset_host (ide_hwif_t *hwif)
 314 {
 315 //      unsigned long high_16   = hwif->dma_base - (8*(hwif->channel));
 316         unsigned long high_16   = hwif->dma_master;
 317         u8 udma_speed_flag      = hwif->INB(high_16|0x001f);
 318
 319         hwif->OUTB((udma_speed_flag | 0x10), (high_16|0x001f));
 320         mdelay(100);
 321         hwif->OUTB((udma_speed_flag & ~0x10), (high_16|0x001f));
 322         mdelay(2000);   /* 2 seconds ?! */
 323
 324         printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
 325                 hwif->channel ? "Secondary" : "Primary");
 326 }
 327
 328 void pdcnew_reset (ide_drive_t *drive)
 329 {
 330         ide_hwif_t *hwif        = HWIF(drive);
 331         ide_hwif_t *mate        = hwif->mate;
 332
 333         pdcnew_reset_host(hwif);
 334         pdcnew_reset_host(mate);
 335 #if 0
 336         /*
 337          * FIXME: Have to kick all the drives again :-/
 338          * What a pain in the ACE!
 339          */
 340         if (hwif->present) {
 341                 u16 hunit = 0;
 342                 for (hunit = 0; hunit < MAX_DRIVES; ++hunit) {
 343                         ide_drive_t *hdrive = &hwif->drives[hunit];
 344                         if (hdrive->present) {
 345                                 if (hwif->ide_dma_check)
 346                                         hwif->ide_dma_check(hdrive);
 347                                 else
 348                                         hwif->tuneproc(hdrive, 5);
 349                         }
 350                 }
 351         }
 352         if (mate->present) {
 353                 u16 munit = 0;
 354                 for (munit = 0; munit < MAX_DRIVES; ++munit) {
 355                         ide_drive_t *mdrive = &mate->drives[munit];
 356                         if (mdrive->present) {
 357                                 if (mate->ide_dma_check)
 358                                         mate->ide_dma_check(mdrive);
 359                                 else
 360                                         mate->tuneproc(mdrive, 5);
 361                         }
 362                 }
 363         }
 364 #else
 365         hwif->tuneproc(drive, 5);
 366 #endif
 367 }
 368
 369 #ifdef CONFIG_PPC_PMAC
 370 static void __devinit apple_kiwi_init(struct pci_dev *pdev)
 371 {
 372         struct device_node *np = pci_device_to_OF_node(pdev);
 373         unsigned int class_rev = 0;
 374         unsigned long mmio;
 375         u8 conf;
 376
 377         if (np == NULL || !device_is_compatible(np, "kiwi-root"))
 378                 return;
 379
 380         pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
 381         class_rev &= 0xff;
 382
 383         if (class_rev >= 0x03) {
 384                 /* Setup chip magic config stuff (from darwin) */
 385                 pci_read_config_byte(pdev, 0x40, &conf);
 386                 pci_write_config_byte(pdev, 0x40, conf | 0x01);
 387         }
 388         mmio = (unsigned long)ioremap(pci_resource_start(pdev, 5),
 389                                       pci_resource_len(pdev, 5));
 390
 391         /* Setup some PLL stuffs */
 392         switch (pdev->device) {
 393         case PCI_DEVICE_ID_PROMISE_20270:
 394                 writew(0x0d2b, mmio + 0x1202);
 395                 mdelay(30);
 396                 break;
 397         case PCI_DEVICE_ID_PROMISE_20271:
 398                 writew(0x0826, mmio + 0x1202);
 399                 mdelay(30);
 400                 break;
 401         }
 402
 403         iounmap((void *)mmio);
 404 }
 405 #endif /* CONFIG_PPC_PMAC */
 406
 407 static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
 408 {
 409         if (dev->resource[PCI_ROM_RESOURCE].start) {
 410                 pci_write_config_dword(dev, PCI_ROM_ADDRESS,
 411                         dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 412                 printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n",
 413                         name, dev->resource[PCI_ROM_RESOURCE].start);
 414         }
 415
 416 #ifdef CONFIG_PPC_PMAC
 417         apple_kiwi_init(dev);
 418 #endif
 419
 420 #if defined(DISPLAY_PDC202XX_TIMINGS) && defined(CONFIG_PROC_FS)
 421         pdc202_devs[n_pdc202_devs++] = dev;
 422
 423         if (!pdcnew_proc) {
 424                 pdcnew_proc = 1;
 425                 ide_pci_create_host_proc("pdcnew", pdcnew_get_info);
 426         }
 427 #endif /* DISPLAY_PDC202XX_TIMINGS && CONFIG_PROC_FS */
 428
 429         return dev->irq;
 430 }
 431
 432 static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
 433 {
 434         hwif->autodma = 0;
 435
 436         hwif->tuneproc  = &pdcnew_tune_drive;
 437         hwif->quirkproc = &pdcnew_quirkproc;
 438         hwif->speedproc = &pdcnew_new_tune_chipset;
 439         hwif->resetproc = &pdcnew_new_reset;
 440
 441         hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
 442
 443         hwif->ultra_mask = 0x7f;
 444         hwif->mwdma_mask = 0x07;
 445
 446         hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
 447         hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
 448         hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
 449         if (!(hwif->udma_four))
 450                 hwif->udma_four = (pdcnew_new_cable_detect(hwif)) ? 0 : 1;
 451         if (!noautodma)
 452                 hwif->autodma = 1;
 453         hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
 454 #if PDC202_DEBUG_CABLE
 455         printk(KERN_DEBUG "%s: %s-pin cable\n",
 456                 hwif->name, hwif->udma_four ? "80" : "40");
 457 #endif /* PDC202_DEBUG_CABLE */
 458 }
 459
 460 static void __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
 461 {
 462         ide_setup_pci_device(dev, d);
 463 }
 464
 465 static void __devinit init_setup_pdc20270(struct pci_dev *dev, ide_pci_device_t *d)
 466 {
 467         struct pci_dev *findev = NULL;
 468
 469         if ((dev->bus->self &&
 470              dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
 471             (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
 472                 if (PCI_SLOT(dev->devfn) & 2) {
 473                         return;
 474                 }
 475                 d->extra = 0;
 476                 while ((findev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
 477                         if ((findev->vendor == dev->vendor) &&
 478                             (findev->device == dev->device) &&
 479                             (PCI_SLOT(findev->devfn) & 2)) {
 480                                 if (findev->irq != dev->irq) {
 481                                         findev->irq = dev->irq;
 482                                 }
 483                                 ide_setup_pci_devices(dev, findev, d);
 484                                 return;
 485                         }
 486                 }
 487         }
 488         ide_setup_pci_device(dev, d);
 489 }
 490
 491 static void __devinit init_setup_pdc20276(struct pci_dev *dev, ide_pci_device_t *d)
 492 {
 493         if ((dev->bus->self) &&
 494             (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
 495             ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
 496              (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
 497                 printk(KERN_INFO "ide: Skipping Promise PDC20276 "
 498                         "attached to I2O RAID controller.\n");
 499                 return;
 500         }
 501         ide_setup_pci_device(dev, d);
 502 }
 503
 504 /**
 505  *      pdc202new_init_one      -       called when a pdc202xx is found
 506  *      @dev: the pdc202new device
 507  *      @id: the matching pci id
 508  *
 509  *      Called when the PCI registration layer (or the IDE initialization)
 510  *      finds a device matching our IDE device tables.
 511  */
 512
 513 static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 514 {
 515         ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
 516
 517         d->init_setup(dev, d);
 518         return 0;
 519 }
 520
 521 static struct pci_device_id pdc202new_pci_tbl[] = {
 522         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 523         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
 524         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
 525         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
 526         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
 527         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
 528         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
 529         { 0, },
 530 };
 531 MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
 532
 533 static struct pci_driver driver = {
 534         .name           = "Promise IDE",
 535         .id_table       = pdc202new_pci_tbl,
 536         .probe          = pdc202new_init_one,
 537 };
 538
 539 static int pdc202new_ide_init(void)
 540 {
 541         return ide_pci_register_driver(&driver);
 542 }
 543
 544 module_init(pdc202new_ide_init);
 545
 546 MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
 547 MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
 548 MODULE_LICENSE("GPL");