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