2 * This file contains work-arounds for many known SD/MMC
3 * and SDIO hardware bugs.
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>
12 #include <linux/types.h>
13 #include <linux/kernel.h>
14 #include <linux/mmc/card.h>
16 #ifndef SDIO_VENDOR_ID_TI
17 #define SDIO_VENDOR_ID_TI 0x0097
20 #ifndef SDIO_DEVICE_ID_TI_WL1271
21 #define SDIO_DEVICE_ID_TI_WL1271 0x4076
24 #ifndef SDIO_VENDOR_ID_STE
25 #define SDIO_VENDOR_ID_STE 0x0020
28 #ifndef SDIO_DEVICE_ID_STE_CW1200
29 #define SDIO_DEVICE_ID_STE_CW1200 0x2280
33 * This hook just adds a quirk for all sdio devices
35 static void add_quirk_for_sdio_devices(struct mmc_card *card, int data)
37 if (mmc_card_sdio(card))
41 static const struct mmc_fixup mmc_fixup_methods[] = {
42 /* by default sdio devices are considered CLK_GATING broken */
43 /* good cards will be whitelisted as they are tested */
44 SDIO_FIXUP(SDIO_ANY_ID, SDIO_ANY_ID,
45 add_quirk_for_sdio_devices,
46 MMC_QUIRK_BROKEN_CLK_GATING),
48 SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
49 remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING),
51 SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
52 add_quirk, MMC_QUIRK_NONSTD_FUNC_IF),
54 SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
55 add_quirk, MMC_QUIRK_DISABLE_CD),
57 SDIO_FIXUP(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200,
58 add_quirk, MMC_QUIRK_BROKEN_BYTE_MODE_512),
63 void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table)
65 const struct mmc_fixup *f;
66 u64 rev = cid_rev_card(card);
68 /* Non-core specific workarounds. */
70 table = mmc_fixup_methods;
72 for (f = table; f->vendor_fixup; f++) {
73 if ((f->manfid == CID_MANFID_ANY ||
74 f->manfid == card->cid.manfid) &&
75 (f->oemid == CID_OEMID_ANY ||
76 f->oemid == card->cid.oemid) &&
77 (f->name == CID_NAME_ANY ||
78 !strncmp(f->name, card->cid.prod_name,
79 sizeof(card->cid.prod_name))) &&
80 (f->cis_vendor == card->cis.vendor ||
81 f->cis_vendor == (u16) SDIO_ANY_ID) &&
82 (f->cis_device == card->cis.device ||
83 f->cis_device == (u16) SDIO_ANY_ID) &&
84 rev >= f->rev_start && rev <= f->rev_end) {
85 dev_dbg(&card->dev, "calling %pF\n", f->vendor_fixup);
86 f->vendor_fixup(card, f->data);
90 EXPORT_SYMBOL(mmc_fixup_device);