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 */
41static 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
47static 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
72void 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}
99EXPORT_SYMBOL(mmc_fixup_device);
100