/*
- * This file contains work-arounds for many known sdio hardware
- * bugs.
+ * 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/mmc/card.h>
-#include <linux/mod_devicetable.h>
-/*
- * The world is not perfect and supplies us with broken mmc/sdio devices.
- * For at least a part of these bugs we need a work-around
- */
-
-struct mmc_fixup {
- u16 vendor, device; /* You can use SDIO_ANY_ID here of course */
- void (*vendor_fixup)(struct mmc_card *card, int data);
- int data;
-};
-
-/*
- * This hook just adds a quirk unconditionnally
- */
-static void __maybe_unused add_quirk(struct mmc_card *card, int data)
-{
- card->quirks |= data;
-}
+#ifndef SDIO_VENDOR_ID_TI
+#define SDIO_VENDOR_ID_TI 0x0097
+#endif
-/*
- * This hook just removes a quirk unconditionnally
- */
-static void __maybe_unused remove_quirk(struct mmc_card *card, int data)
-{
- card->quirks &= ~data;
-}
+#ifndef SDIO_DEVICE_ID_TI_WL1271
+#define SDIO_DEVICE_ID_TI_WL1271 0x4076
+#endif
/*
* This hook just adds a quirk for all sdio devices
card->quirks |= data;
}
-#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
-
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_ANY_ID, SDIO_ANY_ID,
- add_quirk_for_sdio_devices, MMC_QUIRK_BROKEN_CLK_GATING },
- { SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
- remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING },
- { SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
- add_quirk, MMC_QUIRK_NONSTD_FUNC_IF },
- { SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
- add_quirk, MMC_QUIRK_DISABLE_CD },
- { 0 }
+ 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),
+
+ END_FIXUP
};
-void mmc_fixup_device(struct mmc_card *card)
+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 = mmc_fixup_methods; f->vendor_fixup; f++) {
- if ((f->vendor == card->cis.vendor
- || f->vendor == (u16) SDIO_ANY_ID) &&
- (f->device == card->cis.device
- || f->device == (u16) SDIO_ANY_ID)) {
+ 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);
}
#define LINUX_MMC_CARD_H
#include <linux/mmc/core.h>
+#include <linux/mod_devicetable.h>
struct mmc_cid {
unsigned int manfid;
struct dentry *debugfs_root;
};
-void mmc_fixup_device(struct mmc_card *dev);
+/*
+ * The world is not perfect and supplies us with broken mmc/sdio devices.
+ * For at least some of these bugs we need a work-around.
+ */
+
+struct mmc_fixup {
+ /* CID-specific fields. */
+ const char *name;
+
+ /* Valid revision range */
+ u64 rev_start, rev_end;
+
+ unsigned int manfid;
+ unsigned short oemid;
+
+ /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */
+ u16 cis_vendor, cis_device;
+
+ void (*vendor_fixup)(struct mmc_card *card, int data);
+ int data;
+};
+
+#define CID_MANFID_ANY (-1ul)
+#define CID_OEMID_ANY ((unsigned short) -1)
+#define CID_NAME_ANY (NULL)
+
+#define END_FIXUP { 0 }
+
+#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \
+ _cis_vendor, _cis_device, \
+ _fixup, _data) \
+ { \
+ .name = (_name), \
+ .manfid = (_manfid), \
+ .oemid = (_oemid), \
+ .rev_start = (_rev_start), \
+ .rev_end = (_rev_end), \
+ .cis_vendor = (_cis_vendor), \
+ .cis_device = (_cis_device), \
+ .vendor_fixup = (_fixup), \
+ .data = (_data), \
+ }
+
+#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \
+ _fixup, _data) \
+ _FIXUP_EXT(_name, _manfid, \
+ _oemid, _rev_start, _rev_end, \
+ SDIO_ANY_ID, SDIO_ANY_ID, \
+ _fixup, _data) \
+
+#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
+ MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data)
+
+#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \
+ _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \
+ CID_OEMID_ANY, 0, -1ull, \
+ _vendor, _device, \
+ _fixup, _data) \
+
+#define cid_rev(hwrev, fwrev, year, month) \
+ (((u64) hwrev) << 40 | \
+ ((u64) fwrev) << 32 | \
+ ((u64) year) << 16 | \
+ ((u64) month))
+
+#define cid_rev_card(card) \
+ cid_rev(card->cid.hwrev, \
+ card->cid.fwrev, \
+ card->cid.year, \
+ card->cid.month)
+
+/*
+ * This hook just adds a quirk unconditionally.
+ */
+static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
+{
+ card->quirks |= data;
+}
+
+/*
+ * This hook just removes a quirk unconditionally.
+ */
+static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
+{
+ card->quirks &= ~data;
+}
#define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC)
#define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD)
extern int mmc_register_driver(struct mmc_driver *);
extern void mmc_unregister_driver(struct mmc_driver *);
+extern void mmc_fixup_device(struct mmc_card *card,
+ const struct mmc_fixup *table);
+
#endif
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff