Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 99 insertions, 0 deletions

diff --git a/kernel/drivers/mmc/core/quirks.c b/kernel/drivers/mmc/core/quirks.c
new file mode 100644
index 000000000..dd1d1e0fe
--- /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);