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187b164945
The TiWi WL1251 WiFi chip needs special setup of the sdio
interface before it can be probed.
So far, this is done in omap_hsmmc_init_card() in omap_hsmmc.c
which makes it useable only if connected to omap devices
which use the omap_hsmmc. The OpenPandora is the most promient
example.
There are plans to switch to a newer sdhci-omap driver and
retire omap_hsmmc. Hence this quirk must be reworked or moved
somewhere else. Ideally to some location that is not dependent
on the specific SoC mmc host driver.
This is achieved by the new mmc_fixup_device() option introduced
by ("mmc: allow to match the device tree to apply quirks") to match
through device tree compatible string.
This quirk will be called early right after where host->ops->init_card()
and thus omap_hsmmc_init_card() was previously called.
Note that we do not need to transplant
card->ocr = 0x80;
because we rely on ("mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO").
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/774565df7f02124c003aaf8b879706352548f832.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
261 lines
7 KiB
C
261 lines
7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Private header for the mmc subsystem
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*
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* Copyright (C) 2016 Linaro Ltd
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*
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* Author: Ulf Hansson <ulf.hansson@linaro.org>
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*/
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#ifndef _MMC_CORE_CARD_H
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#define _MMC_CORE_CARD_H
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#include <linux/mmc/card.h>
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#define mmc_card_name(c) ((c)->cid.prod_name)
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#define mmc_card_id(c) (dev_name(&(c)->dev))
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#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev)
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/* Card states */
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#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
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#define MMC_STATE_READONLY (1<<1) /* card is read-only */
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#define MMC_STATE_BLOCKADDR (1<<2) /* card uses block-addressing */
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#define MMC_CARD_SDXC (1<<3) /* card is SDXC */
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#define MMC_CARD_REMOVED (1<<4) /* card has been removed */
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#define MMC_STATE_SUSPENDED (1<<5) /* card is suspended */
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#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
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#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
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#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
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#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
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#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED))
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#define mmc_card_suspended(c) ((c)->state & MMC_STATE_SUSPENDED)
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#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
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#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
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#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
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#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
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#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
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#define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
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#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)
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/*
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* The world is not perfect and supplies us with broken mmc/sdio devices.
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* For at least some of these bugs we need a work-around.
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*/
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struct mmc_fixup {
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/* CID-specific fields. */
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const char *name;
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/* Valid revision range */
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u64 rev_start, rev_end;
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unsigned int manfid;
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unsigned short oemid;
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/* SDIO-specific fields. You can use SDIO_ANY_ID here of course */
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u16 cis_vendor, cis_device;
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/* for MMC cards */
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unsigned int ext_csd_rev;
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/* Match against functions declared in device tree */
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const char *of_compatible;
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void (*vendor_fixup)(struct mmc_card *card, int data);
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int data;
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};
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#define CID_MANFID_ANY (-1u)
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#define CID_OEMID_ANY ((unsigned short) -1)
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#define CID_NAME_ANY (NULL)
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#define EXT_CSD_REV_ANY (-1u)
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#define CID_MANFID_SANDISK 0x2
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#define CID_MANFID_ATP 0x9
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#define CID_MANFID_TOSHIBA 0x11
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#define CID_MANFID_MICRON 0x13
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#define CID_MANFID_SAMSUNG 0x15
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#define CID_MANFID_APACER 0x27
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#define CID_MANFID_KINGSTON 0x70
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#define CID_MANFID_HYNIX 0x90
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#define CID_MANFID_NUMONYX 0xFE
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#define END_FIXUP { NULL }
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#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \
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_cis_vendor, _cis_device, \
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_fixup, _data, _ext_csd_rev) \
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{ \
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.name = (_name), \
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.manfid = (_manfid), \
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.oemid = (_oemid), \
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.rev_start = (_rev_start), \
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.rev_end = (_rev_end), \
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.cis_vendor = (_cis_vendor), \
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.cis_device = (_cis_device), \
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.vendor_fixup = (_fixup), \
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.data = (_data), \
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.ext_csd_rev = (_ext_csd_rev), \
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}
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#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \
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_fixup, _data, _ext_csd_rev) \
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_FIXUP_EXT(_name, _manfid, \
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_oemid, _rev_start, _rev_end, \
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SDIO_ANY_ID, SDIO_ANY_ID, \
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_fixup, _data, _ext_csd_rev) \
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#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
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MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \
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EXT_CSD_REV_ANY)
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#define MMC_FIXUP_EXT_CSD_REV(_name, _manfid, _oemid, _fixup, _data, \
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_ext_csd_rev) \
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MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \
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_ext_csd_rev)
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#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \
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_FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \
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CID_OEMID_ANY, 0, -1ull, \
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_vendor, _device, \
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_fixup, _data, EXT_CSD_REV_ANY) \
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#define SDIO_FIXUP_COMPATIBLE(_compatible, _fixup, _data) \
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{ \
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.name = CID_NAME_ANY, \
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.manfid = CID_MANFID_ANY, \
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.oemid = CID_OEMID_ANY, \
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.rev_start = 0, \
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.rev_end = -1ull, \
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.cis_vendor = SDIO_ANY_ID, \
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.cis_device = SDIO_ANY_ID, \
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.vendor_fixup = (_fixup), \
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.data = (_data), \
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.ext_csd_rev = EXT_CSD_REV_ANY, \
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.of_compatible = _compatible, \
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}
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#define cid_rev(hwrev, fwrev, year, month) \
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(((u64) hwrev) << 40 | \
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((u64) fwrev) << 32 | \
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((u64) year) << 16 | \
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((u64) month))
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#define cid_rev_card(card) \
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cid_rev(card->cid.hwrev, \
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card->cid.fwrev, \
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card->cid.year, \
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card->cid.month)
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/*
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* Unconditionally quirk add/remove.
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*/
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static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
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{
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card->quirks |= data;
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}
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static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
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{
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card->quirks &= ~data;
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}
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static inline void __maybe_unused add_limit_rate_quirk(struct mmc_card *card,
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int data)
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{
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card->quirk_max_rate = data;
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}
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static inline void __maybe_unused wl1251_quirk(struct mmc_card *card,
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int data)
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{
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/*
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* We have TI wl1251 attached to this mmc. Pass this
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* information to the SDIO core because it can't be
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* probed by normal methods.
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*/
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dev_info(card->host->parent, "found wl1251\n");
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card->quirks |= MMC_QUIRK_NONSTD_SDIO;
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card->cccr.wide_bus = 1;
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card->cis.vendor = 0x104c;
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card->cis.device = 0x9066;
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card->cis.blksize = 512;
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card->cis.max_dtr = 24000000;
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}
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/*
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* Quirk add/remove for MMC products.
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*/
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static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
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{
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if (mmc_card_mmc(card))
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card->quirks |= data;
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}
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static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
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int data)
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{
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if (mmc_card_mmc(card))
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card->quirks &= ~data;
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}
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/*
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* Quirk add/remove for SD products.
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*/
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static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
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{
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if (mmc_card_sd(card))
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card->quirks |= data;
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}
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static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
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int data)
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{
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if (mmc_card_sd(card))
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card->quirks &= ~data;
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}
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static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_LENIENT_FN0;
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}
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static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
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}
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static inline int mmc_card_disable_cd(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_DISABLE_CD;
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}
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static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
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}
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static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
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}
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static inline int mmc_card_long_read_time(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_LONG_READ_TIME;
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}
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static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
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}
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static inline int mmc_card_broken_hpi(const struct mmc_card *c)
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{
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return c->quirks & MMC_QUIRK_BROKEN_HPI;
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}
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#endif
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