SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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  *  Copyright (C) 2005-2006             MontaVista Software, Inc.
  13  *  Portions Copyright (C) 1999 Promise Technology, Inc.
  14  *  Author: Frank Tiernan (frankt@promise.com)
  15  *  Released under terms of General Public License
  16  */
  17
  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 #define PDC202_DEBUG_CABLE      0
  41
  42 static const char *pdc_quirk_drives[] = {
  43         "QUANTUM FIREBALLlct08 08",
  44         "QUANTUM FIREBALLP KA6.4",
  45         "QUANTUM FIREBALLP KA9.1",
  46         "QUANTUM FIREBALLP LM20.4",
  47         "QUANTUM FIREBALLP KX13.6",
  48         "QUANTUM FIREBALLP KX20.5",
  49         "QUANTUM FIREBALLP KX27.3",
  50         "QUANTUM FIREBALLP LM20.5",
  51         NULL
  52 };
  53
  54 #define set_2regs(a, b)                                 \
  55         do {                                            \
  56                 hwif->OUTB((a + adj), indexreg);        \
  57                 hwif->OUTB(b, datareg);                 \
  58         } while(0)
  59
  60 #define set_ultra(a, b, c)                              \
  61         do {                                            \
  62                 set_2regs(0x10,(a));                    \
  63                 set_2regs(0x11,(b));                    \
  64                 set_2regs(0x12,(c));                    \
  65         } while(0)
  66
  67 #define set_ata2(a, b)                                  \
  68         do {                                            \
  69                 set_2regs(0x0e,(a));                    \
  70                 set_2regs(0x0f,(b));                    \
  71         } while(0)
  72
  73 #define set_pio(a, b, c)                                \
  74         do {                                            \
  75                 set_2regs(0x0c,(a));                    \
  76                 set_2regs(0x0d,(b));                    \
  77                 set_2regs(0x13,(c));                    \
  78         } while(0)
  79
  80 static u8 pdcnew_ratemask (ide_drive_t *drive)
  81 {
  82         u8 mode;
  83
  84         switch(HWIF(drive)->pci_dev->device) {
  85                 case PCI_DEVICE_ID_PROMISE_20277:
  86                 case PCI_DEVICE_ID_PROMISE_20276:
  87                 case PCI_DEVICE_ID_PROMISE_20275:
  88                 case PCI_DEVICE_ID_PROMISE_20271:
  89                 case PCI_DEVICE_ID_PROMISE_20269:
  90                         mode = 4;
  91                         break;
  92                 case PCI_DEVICE_ID_PROMISE_20270:
  93                 case PCI_DEVICE_ID_PROMISE_20268:
  94                         mode = 3;
  95                         break;
  96                 default:
  97                         return 0;
  98         }
  99         if (!eighty_ninty_three(drive))
 100                 mode = min(mode, (u8)1);
 101         return mode;
 102 }
 103
 104 static int check_in_drive_lists (ide_drive_t *drive, const char **list)
 105 {
 106         struct hd_driveid *id = drive->id;
 107
 108         if (pdc_quirk_drives == list) {
 109                 while (*list) {
 110                         if (strstr(id->model, *list++)) {
 111                                 return 2;
 112                         }
 113                 }
 114         } else {
 115                 while (*list) {
 116                         if (!strcmp(*list++,id->model)) {
 117                                 return 1;
 118                         }
 119                 }
 120         }
 121         return 0;
 122 }
 123
 124 static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 125 {
 126         ide_hwif_t *hwif        = HWIF(drive);
 127         unsigned long indexreg  = hwif->dma_vendor1;
 128         unsigned long datareg   = hwif->dma_vendor3;
 129         u8 thold                = 0x10;
 130         u8 adj                  = (drive->dn%2) ? 0x08 : 0x00;
 131         u8 speed                = ide_rate_filter(pdcnew_ratemask(drive), xferspeed);
 132
 133         if (speed == XFER_UDMA_2) {
 134                 hwif->OUTB((thold + adj), indexreg);
 135                 hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
 136         }
 137
 138         switch (speed) {
 139                 case XFER_UDMA_7:
 140                         speed = XFER_UDMA_6;
 141                 case XFER_UDMA_6:       set_ultra(0x1a, 0x01, 0xcb); break;
 142                 case XFER_UDMA_5:       set_ultra(0x1a, 0x02, 0xcb); break;
 143                 case XFER_UDMA_4:       set_ultra(0x1a, 0x03, 0xcd); break;
 144                 case XFER_UDMA_3:       set_ultra(0x1a, 0x05, 0xcd); break;
 145                 case XFER_UDMA_2:       set_ultra(0x2a, 0x07, 0xcd); break;
 146                 case XFER_UDMA_1:       set_ultra(0x3a, 0x0a, 0xd0); break;
 147                 case XFER_UDMA_0:       set_ultra(0x4a, 0x0f, 0xd5); break;
 148                 case XFER_MW_DMA_2:     set_ata2(0x69, 0x25); break;
 149                 case XFER_MW_DMA_1:     set_ata2(0x6b, 0x27); break;
 150                 case XFER_MW_DMA_0:     set_ata2(0xdf, 0x5f); break;
 151                 case XFER_PIO_4:        set_pio(0x23, 0x09, 0x25); break;
 152                 case XFER_PIO_3:        set_pio(0x27, 0x0d, 0x35); break;
 153                 case XFER_PIO_2:        set_pio(0x23, 0x26, 0x64); break;
 154                 case XFER_PIO_1:        set_pio(0x46, 0x29, 0xa4); break;
 155                 case XFER_PIO_0:        set_pio(0xfb, 0x2b, 0xac); break;
 156                 default:
 157                         ;
 158         }
 159
 160         return (ide_config_drive_speed(drive, speed));
 161 }
 162
 163 /*   0    1    2    3    4    5    6   7   8
 164  * 960, 480, 390, 300, 240, 180, 120, 90, 60
 165  *           180, 150, 120,  90,  60
 166  * DMA_Speed
 167  * 180, 120,  90,  90,  90,  60,  30
 168  *  11,   5,   4,   3,   2,   1,   0
 169  */
 170 static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
 171 {
 172         pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
 173         (void)pdcnew_new_tune_chipset(drive, XFER_PIO_0 + pio);
 174 }
 175
 176 static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
 177 {
 178         hwif->OUTB(0x0b, hwif->dma_vendor1);
 179         return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
 180 }
 181 static int config_chipset_for_dma (ide_drive_t *drive)
 182 {
 183         struct hd_driveid *id   = drive->id;
 184         ide_hwif_t *hwif        = HWIF(drive);
 185         u8 speed                = -1;
 186         u8 cable;
 187
 188         u8 ultra_66             = ((id->dma_ultra & 0x0010) ||
 189                                    (id->dma_ultra & 0x0008)) ? 1 : 0;
 190
 191         cable = pdcnew_new_cable_detect(hwif);
 192
 193         if (ultra_66 && cable) {
 194                 printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
 195                 printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
 196         }
 197
 198         if (drive->media != ide_disk)
 199                 return 0;
 200         if (id->capability & 4) {       /* IORDY_EN & PREFETCH_EN */
 201                 hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
 202                 hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3);
 203         }
 204
 205         speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
 206
 207         if (!speed)
 208                 return 0;
 209
 210         (void) hwif->speedproc(drive, speed);
 211         return ide_dma_enable(drive);
 212 }
 213
 214 static int pdcnew_config_drive_xfer_rate (ide_drive_t *drive)
 215 {
 216         ide_hwif_t *hwif        = HWIF(drive);
 217         struct hd_driveid *id   = drive->id;
 218
 219         drive->init_speed = 0;
 220
 221         if (id && (id->capability & 1) && drive->autodma) {
 222
 223                 if (ide_use_dma(drive)) {
 224                         if (config_chipset_for_dma(drive))
 225                                 return hwif->ide_dma_on(drive);
 226                 }
 227
 228                 goto fast_ata_pio;
 229
 230         } else if ((id->capability & 8) || (id->field_valid & 2)) {
 231 fast_ata_pio:
 232                 hwif->tuneproc(drive, 255);
 233                 return hwif->ide_dma_off_quietly(drive);
 234         }
 235         /* IORDY not supported */
 236         return 0;
 237 }
 238
 239 static int pdcnew_quirkproc (ide_drive_t *drive)
 240 {
 241         return ((int) check_in_drive_lists(drive, pdc_quirk_drives));
 242 }
 243
 244 static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
 245 {
 246         if (HWIF(drive)->resetproc != NULL)
 247                 HWIF(drive)->resetproc(drive);
 248         return __ide_dma_lostirq(drive);
 249 }
 250
 251 static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
 252 {
 253         if (HWIF(drive)->resetproc != NULL)
 254                 HWIF(drive)->resetproc(drive);
 255         return __ide_dma_timeout(drive);
 256 }
 257
 258 static void pdcnew_new_reset (ide_drive_t *drive)
 259 {
 260         /*
 261          * Deleted this because it is redundant from the caller.
 262          */
 263         printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
 264                 HWIF(drive)->channel ? "Secondary" : "Primary");
 265 }
 266
 267 #ifdef CONFIG_PPC_PMAC
 268 static void __devinit apple_kiwi_init(struct pci_dev *pdev)
 269 {
 270         struct device_node *np = pci_device_to_OF_node(pdev);
 271         unsigned int class_rev = 0;
 272         void __iomem *mmio;
 273         u8 conf;
 274
 275         if (np == NULL || !device_is_compatible(np, "kiwi-root"))
 276                 return;
 277
 278         pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
 279         class_rev &= 0xff;
 280
 281         if (class_rev >= 0x03) {
 282                 /* Setup chip magic config stuff (from darwin) */
 283                 pci_read_config_byte(pdev, 0x40, &conf);
 284                 pci_write_config_byte(pdev, 0x40, conf | 0x01);
 285         }
 286         mmio = ioremap(pci_resource_start(pdev, 5),
 287                                       pci_resource_len(pdev, 5));
 288
 289         /* Setup some PLL stuffs */
 290         switch (pdev->device) {
 291         case PCI_DEVICE_ID_PROMISE_20270:
 292                 writew(0x0d2b, mmio + 0x1202);
 293                 mdelay(30);
 294                 break;
 295         case PCI_DEVICE_ID_PROMISE_20271:
 296                 writew(0x0826, mmio + 0x1202);
 297                 mdelay(30);
 298                 break;
 299         }
 300
 301         iounmap(mmio);
 302 }
 303 #endif /* CONFIG_PPC_PMAC */
 304
 305 static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
 306 {
 307         if (dev->resource[PCI_ROM_RESOURCE].start) {
 308                 pci_write_config_dword(dev, PCI_ROM_ADDRESS,
 309                         dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 310                 printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
 311                         (unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
 312         }
 313
 314 #ifdef CONFIG_PPC_PMAC
 315         apple_kiwi_init(dev);
 316 #endif
 317
 318         return dev->irq;
 319 }
 320
 321 static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
 322 {
 323         hwif->autodma = 0;
 324
 325         hwif->tuneproc  = &pdcnew_tune_drive;
 326         hwif->quirkproc = &pdcnew_quirkproc;
 327         hwif->speedproc = &pdcnew_new_tune_chipset;
 328         hwif->resetproc = &pdcnew_new_reset;
 329
 330         hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
 331
 332         hwif->ultra_mask = 0x7f;
 333         hwif->mwdma_mask = 0x07;
 334
 335         hwif->err_stops_fifo = 1;
 336
 337         hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
 338         hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
 339         hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
 340         if (!(hwif->udma_four))
 341                 hwif->udma_four = (pdcnew_new_cable_detect(hwif)) ? 0 : 1;
 342         if (!noautodma)
 343                 hwif->autodma = 1;
 344         hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
 345 #if PDC202_DEBUG_CABLE
 346         printk(KERN_DEBUG "%s: %s-pin cable\n",
 347                 hwif->name, hwif->udma_four ? "80" : "40");
 348 #endif /* PDC202_DEBUG_CABLE */
 349 }
 350
 351 static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
 352 {
 353         return ide_setup_pci_device(dev, d);
 354 }
 355
 356 static int __devinit init_setup_pdc20270(struct pci_dev *dev,
 357                                          ide_pci_device_t *d)
 358 {
 359         struct pci_dev *findev = NULL;
 360         int ret;
 361
 362         if ((dev->bus->self &&
 363              dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
 364             (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
 365                 if (PCI_SLOT(dev->devfn) & 2)
 366                         return -ENODEV;
 367                 d->extra = 0;
 368                 while ((findev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
 369                         if ((findev->vendor == dev->vendor) &&
 370                             (findev->device == dev->device) &&
 371                             (PCI_SLOT(findev->devfn) & 2)) {
 372                                 if (findev->irq != dev->irq) {
 373                                         findev->irq = dev->irq;
 374                                 }
 375                                 ret = ide_setup_pci_devices(dev, findev, d);
 376                                 pci_dev_put(findev);
 377                                 return ret;
 378                         }
 379                 }
 380         }
 381         return ide_setup_pci_device(dev, d);
 382 }
 383
 384 static int __devinit init_setup_pdc20276(struct pci_dev *dev,
 385                                          ide_pci_device_t *d)
 386 {
 387         if ((dev->bus->self) &&
 388             (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
 389             ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
 390              (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
 391                 printk(KERN_INFO "ide: Skipping Promise PDC20276 "
 392                         "attached to I2O RAID controller.\n");
 393                 return -ENODEV;
 394         }
 395         return ide_setup_pci_device(dev, d);
 396 }
 397
 398 static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
 399         {       /* 0 */
 400                 .name           = "PDC20268",
 401                 .init_setup     = init_setup_pdcnew,
 402                 .init_chipset   = init_chipset_pdcnew,
 403                 .init_hwif      = init_hwif_pdc202new,
 404                 .channels       = 2,
 405                 .autodma        = AUTODMA,
 406                 .bootable       = OFF_BOARD,
 407         },{     /* 1 */
 408                 .name           = "PDC20269",
 409                 .init_setup     = init_setup_pdcnew,
 410                 .init_chipset   = init_chipset_pdcnew,
 411                 .init_hwif      = init_hwif_pdc202new,
 412                 .channels       = 2,
 413                 .autodma        = AUTODMA,
 414                 .bootable       = OFF_BOARD,
 415         },{     /* 2 */
 416                 .name           = "PDC20270",
 417                 .init_setup     = init_setup_pdc20270,
 418                 .init_chipset   = init_chipset_pdcnew,
 419                 .init_hwif      = init_hwif_pdc202new,
 420                 .channels       = 2,
 421                 .autodma        = AUTODMA,
 422                 .bootable       = OFF_BOARD,
 423         },{     /* 3 */
 424                 .name           = "PDC20271",
 425                 .init_setup     = init_setup_pdcnew,
 426                 .init_chipset   = init_chipset_pdcnew,
 427                 .init_hwif      = init_hwif_pdc202new,
 428                 .channels       = 2,
 429                 .autodma        = AUTODMA,
 430                 .bootable       = OFF_BOARD,
 431         },{     /* 4 */
 432                 .name           = "PDC20275",
 433                 .init_setup     = init_setup_pdcnew,
 434                 .init_chipset   = init_chipset_pdcnew,
 435                 .init_hwif      = init_hwif_pdc202new,
 436                 .channels       = 2,
 437                 .autodma        = AUTODMA,
 438                 .bootable       = OFF_BOARD,
 439         },{     /* 5 */
 440                 .name           = "PDC20276",
 441                 .init_setup     = init_setup_pdc20276,
 442                 .init_chipset   = init_chipset_pdcnew,
 443                 .init_hwif      = init_hwif_pdc202new,
 444                 .channels       = 2,
 445                 .autodma        = AUTODMA,
 446                 .bootable       = OFF_BOARD,
 447         },{     /* 6 */
 448                 .name           = "PDC20277",
 449                 .init_setup     = init_setup_pdcnew,
 450                 .init_chipset   = init_chipset_pdcnew,
 451                 .init_hwif      = init_hwif_pdc202new,
 452                 .channels       = 2,
 453                 .autodma        = AUTODMA,
 454                 .bootable       = OFF_BOARD,
 455         }
 456 };
 457
 458 /**
 459  *      pdc202new_init_one      -       called when a pdc202xx is found
 460  *      @dev: the pdc202new device
 461  *      @id: the matching pci id
 462  *
 463  *      Called when the PCI registration layer (or the IDE initialization)
 464  *      finds a device matching our IDE device tables.
 465  */
 466
 467 static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 468 {
 469         ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
 470
 471         return d->init_setup(dev, d);
 472 }
 473
 474 static struct pci_device_id pdc202new_pci_tbl[] = {
 475         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 476         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
 477         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
 478         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
 479         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
 480         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
 481         { PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
 482         { 0, },
 483 };
 484 MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
 485
 486 static struct pci_driver driver = {
 487         .name           = "Promise_IDE",
 488         .id_table       = pdc202new_pci_tbl,
 489         .probe          = pdc202new_init_one,
 490 };
 491
 492 static int pdc202new_ide_init(void)
 493 {
 494         return ide_pci_register_driver(&driver);
 495 }
 496
 497 module_init(pdc202new_ide_init);
 498
 499 MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
 500 MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
 501 MODULE_LICENSE("GPL");