mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9a0da648ff
Adds a quirk which can be turned on for SDIO devices that do not support 512 byte requests in byte mode during CMD53. These requests will always be sent in block mode instead. This patch also enables this quirk for ST-Ericsson CW1200 WLAN device. Signed-off-by: Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com> Signed-off-by: Ulf HANSSON <ulf.hansson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/*
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* This file contains work-arounds for many known SD/MMC
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* and SDIO hardware bugs.
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*
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* Copyright (c) 2011 Andrei Warkentin <andreiw@motorola.com>
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* Copyright (c) 2011 Pierre Tardy <tardyp@gmail.com>
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* Inspired from pci fixup code:
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* Copyright (c) 1999 Martin Mares <mj@ucw.cz>
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*
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/mmc/card.h>
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#ifndef SDIO_VENDOR_ID_TI
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#define SDIO_VENDOR_ID_TI 0x0097
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#endif
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#ifndef SDIO_DEVICE_ID_TI_WL1271
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#define SDIO_DEVICE_ID_TI_WL1271 0x4076
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#endif
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#ifndef SDIO_VENDOR_ID_STE
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#define SDIO_VENDOR_ID_STE 0x0020
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#endif
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#ifndef SDIO_DEVICE_ID_STE_CW1200
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#define SDIO_DEVICE_ID_STE_CW1200 0x2280
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#endif
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/*
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* This hook just adds a quirk for all sdio devices
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*/
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static void add_quirk_for_sdio_devices(struct mmc_card *card, int data)
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{
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if (mmc_card_sdio(card))
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card->quirks |= data;
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}
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static const struct mmc_fixup mmc_fixup_methods[] = {
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/* by default sdio devices are considered CLK_GATING broken */
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/* good cards will be whitelisted as they are tested */
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SDIO_FIXUP(SDIO_ANY_ID, SDIO_ANY_ID,
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add_quirk_for_sdio_devices,
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MMC_QUIRK_BROKEN_CLK_GATING),
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SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
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remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING),
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SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
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add_quirk, MMC_QUIRK_NONSTD_FUNC_IF),
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SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
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add_quirk, MMC_QUIRK_DISABLE_CD),
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SDIO_FIXUP(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200,
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add_quirk, MMC_QUIRK_BROKEN_BYTE_MODE_512),
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END_FIXUP
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};
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void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table)
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{
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const struct mmc_fixup *f;
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u64 rev = cid_rev_card(card);
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/* Non-core specific workarounds. */
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if (!table)
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table = mmc_fixup_methods;
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for (f = table; f->vendor_fixup; f++) {
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if ((f->manfid == CID_MANFID_ANY ||
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f->manfid == card->cid.manfid) &&
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(f->oemid == CID_OEMID_ANY ||
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f->oemid == card->cid.oemid) &&
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(f->name == CID_NAME_ANY ||
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!strncmp(f->name, card->cid.prod_name,
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sizeof(card->cid.prod_name))) &&
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(f->cis_vendor == card->cis.vendor ||
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f->cis_vendor == (u16) SDIO_ANY_ID) &&
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(f->cis_device == card->cis.device ||
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f->cis_device == (u16) SDIO_ANY_ID) &&
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rev >= f->rev_start && rev <= f->rev_end) {
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dev_dbg(&card->dev, "calling %pF\n", f->vendor_fixup);
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f->vendor_fixup(card, f->data);
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}
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}
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}
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EXPORT_SYMBOL(mmc_fixup_device);
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