Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / mmc / core / quirks.c

diff --git a/kernel/drivers/mmc/core/quirks.c b/kernel/drivers/mmc/core/quirks.c
new file mode 100644 (file)
index 0000000..dd1d1e0
--- /dev/null
+++ b/kernel/drivers/mmc/core/quirks.c
@@ -0,0 +1,99 @@
+/*
+ *  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>
+#include <linux/mmc/sdio_ids.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
+
+#ifndef SDIO_DEVICE_ID_MARVELL_8797_F0
+#define SDIO_DEVICE_ID_MARVELL_8797_F0 0x9128
+#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),
+
+       SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_F0,
+                  add_quirk, MMC_QUIRK_BROKEN_IRQ_POLLING),
+
+       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);