tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
38static 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
54void 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}
83EXPORT_SYMBOL(mmc_fixup_device);