drivers/mmc/core/quirks.c

   1 /*
   2  *  This file contains work-arounds for many known SD/MMC
   3  *  and SDIO hardware bugs.
   4  *
   5  *  Copyright (c) 2011 Andrei Warkentin <andreiw@motorola.com>
   6  *  Copyright (c) 2011 Pierre Tardy <tardyp@gmail.com>
   7  *  Inspired from pci fixup code:
   8  *  Copyright (c) 1999 Martin Mares <mj@ucw.cz>
   9  *
  10  */
  11
  12 #include <linux/types.h>
  13 #include <linux/kernel.h>
  14 #include <linux/export.h>
  15 #include <linux/mmc/card.h>
  16 #include <linux/mmc/sdio_ids.h>
  17
  18 #ifndef SDIO_VENDOR_ID_TI
  19 #define SDIO_VENDOR_ID_TI               0x0097
  20 #endif
  21
  22 #ifndef SDIO_DEVICE_ID_TI_WL1271
  23 #define SDIO_DEVICE_ID_TI_WL1271        0x4076
  24 #endif
  25
  26 #ifndef SDIO_VENDOR_ID_STE
  27 #define SDIO_VENDOR_ID_STE              0x0020
  28 #endif
  29
  30 #ifndef SDIO_DEVICE_ID_STE_CW1200
  31 #define SDIO_DEVICE_ID_STE_CW1200       0x2280
  32 #endif
  33
  34 #ifndef SDIO_DEVICE_ID_MARVELL_8797_F0
  35 #define SDIO_DEVICE_ID_MARVELL_8797_F0  0x9128
  36 #endif
  37
  38 static const struct mmc_fixup mmc_fixup_methods[] = {
  39         SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
  40                    add_quirk, MMC_QUIRK_NONSTD_FUNC_IF),
  41
  42         SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
  43                    add_quirk, MMC_QUIRK_DISABLE_CD),
  44
  45         SDIO_FIXUP(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200,
  46                    add_quirk, MMC_QUIRK_BROKEN_BYTE_MODE_512),
  47
  48         SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_F0,
  49                    add_quirk, MMC_QUIRK_BROKEN_IRQ_POLLING),
  50
  51         END_FIXUP
  52 };
  53
  54 void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table)
  55 {
  56         const struct mmc_fixup *f;
  57         u64 rev = cid_rev_card(card);
  58
  59         /* Non-core specific workarounds. */
  60         if (!table)
  61                 table = mmc_fixup_methods;
  62
  63         for (f = table; f->vendor_fixup; f++) {
  64                 if ((f->manfid == CID_MANFID_ANY ||
  65                      f->manfid == card->cid.manfid) &&
  66                     (f->oemid == CID_OEMID_ANY ||
  67                      f->oemid == card->cid.oemid) &&
  68                     (f->name == CID_NAME_ANY ||
  69                      !strncmp(f->name, card->cid.prod_name,
  70                               sizeof(card->cid.prod_name))) &&
  71                     (f->cis_vendor == card->cis.vendor ||
  72                      f->cis_vendor == (u16) SDIO_ANY_ID) &&
  73                     (f->cis_device == card->cis.device ||
  74                      f->cis_device == (u16) SDIO_ANY_ID) &&
  75                     (f->ext_csd_rev == EXT_CSD_REV_ANY ||
  76                      f->ext_csd_rev == card->ext_csd.rev) &&
  77                     rev >= f->rev_start && rev <= f->rev_end) {
  78                         dev_dbg(&card->dev, "calling %pf\n", f->vendor_fixup);
  79                         f->vendor_fixup(card, f->data);
  80                 }
  81         }
  82 }
  83 EXPORT_SYMBOL(mmc_fixup_device);