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 /*
39 * This hook just adds a quirk for all sdio devices
40 */
add_quirk_for_sdio_devices(struct mmc_card * card,int data)41 static void add_quirk_for_sdio_devices(struct mmc_card *card, int data)
42 {
43 if (mmc_card_sdio(card))
44 card->quirks |= data;
45 }
46
47 static const struct mmc_fixup mmc_fixup_methods[] = {
48 /* by default sdio devices are considered CLK_GATING broken */
49 /* good cards will be whitelisted as they are tested */
50 SDIO_FIXUP(SDIO_ANY_ID, SDIO_ANY_ID,
51 add_quirk_for_sdio_devices,
52 MMC_QUIRK_BROKEN_CLK_GATING),
53
54 SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
55 remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING),
56
57 SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
58 add_quirk, MMC_QUIRK_NONSTD_FUNC_IF),
59
60 SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
61 add_quirk, MMC_QUIRK_DISABLE_CD),
62
63 SDIO_FIXUP(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200,
64 add_quirk, MMC_QUIRK_BROKEN_BYTE_MODE_512),
65
66 SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_F0,
67 add_quirk, MMC_QUIRK_BROKEN_IRQ_POLLING),
68
69 END_FIXUP
70 };
71
mmc_fixup_device(struct mmc_card * card,const struct mmc_fixup * table)72 void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table)
73 {
74 const struct mmc_fixup *f;
75 u64 rev = cid_rev_card(card);
76
77 /* Non-core specific workarounds. */
78 if (!table)
79 table = mmc_fixup_methods;
80
81 for (f = table; f->vendor_fixup; f++) {
82 if ((f->manfid == CID_MANFID_ANY ||
83 f->manfid == card->cid.manfid) &&
84 (f->oemid == CID_OEMID_ANY ||
85 f->oemid == card->cid.oemid) &&
86 (f->name == CID_NAME_ANY ||
87 !strncmp(f->name, card->cid.prod_name,
88 sizeof(card->cid.prod_name))) &&
89 (f->cis_vendor == card->cis.vendor ||
90 f->cis_vendor == (u16) SDIO_ANY_ID) &&
91 (f->cis_device == card->cis.device ||
92 f->cis_device == (u16) SDIO_ANY_ID) &&
93 rev >= f->rev_start && rev <= f->rev_end) {
94 dev_dbg(&card->dev, "calling %pf\n", f->vendor_fixup);
95 f->vendor_fixup(card, f->data);
96 }
97 }
98 }
99 EXPORT_SYMBOL(mmc_fixup_device);
100