/* * This file contains work-arounds for many known SD/MMC * and SDIO hardware bugs. * * Copyright (c) 2011 Andrei Warkentin <andreiw@motorola.com> * Copyright (c) 2011 Pierre Tardy <tardyp@gmail.com> * Inspired from pci fixup code: * Copyright (c) 1999 Martin Mares <mj@ucw.cz> * */ #include <linux/types.h> #include <linux/kernel.h> #include <linux/export.h> #include <linux/mmc/card.h> #ifndef SDIO_VENDOR_ID_TI #define SDIO_VENDOR_ID_TI 0x0097 #endif #ifndef SDIO_DEVICE_ID_TI_WL1271 #define SDIO_DEVICE_ID_TI_WL1271 0x4076 #endif #ifndef SDIO_VENDOR_ID_STE #define SDIO_VENDOR_ID_STE 0x0020 #endif #ifndef SDIO_DEVICE_ID_STE_CW1200 #define SDIO_DEVICE_ID_STE_CW1200 0x2280 #endif /* * This hook just adds a quirk for all sdio devices */ static void add_quirk_for_sdio_devices(struct mmc_card *card, int data) { if (mmc_card_sdio(card)) card->quirks |= data; } static const struct mmc_fixup mmc_fixup_methods[] = { /* by default sdio devices are considered CLK_GATING broken */ /* good cards will be whitelisted as they are tested */ SDIO_FIXUP(SDIO_ANY_ID, SDIO_ANY_ID, add_quirk_for_sdio_devices, MMC_QUIRK_BROKEN_CLK_GATING), SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271, remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING), SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271, add_quirk, MMC_QUIRK_NONSTD_FUNC_IF), SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271, add_quirk, MMC_QUIRK_DISABLE_CD), SDIO_FIXUP(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200, add_quirk, MMC_QUIRK_BROKEN_BYTE_MODE_512), END_FIXUP }; void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table) { const struct mmc_fixup *f; u64 rev = cid_rev_card(card); /* Non-core specific workarounds. */ if (!table) table = mmc_fixup_methods; for (f = table; f->vendor_fixup; f++) { if ((f->manfid == CID_MANFID_ANY || f->manfid == card->cid.manfid) && (f->oemid == CID_OEMID_ANY || f->oemid == card->cid.oemid) && (f->name == CID_NAME_ANY || !strncmp(f->name, card->cid.prod_name, sizeof(card->cid.prod_name))) && (f->cis_vendor == card->cis.vendor || f->cis_vendor == (u16) SDIO_ANY_ID) && (f->cis_device == card->cis.device || f->cis_device == (u16) SDIO_ANY_ID) && rev >= f->rev_start && rev <= f->rev_end) { dev_dbg(&card->dev, "calling %pF\n", f->vendor_fixup); f->vendor_fixup(card, f->data); } } } EXPORT_SYMBOL(mmc_fixup_device);