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, 110 insertions, 0 deletions

diff --git a/kernel/drivers/vme/boards/vme_vmivme7805.c b/kernel/drivers/vme/boards/vme_vmivme7805.c
new file mode 100644
index 000000000..ac422121f
--- /dev/null
+++ b/kernel/drivers/vme/boards/vme_vmivme7805.c
@@ -0,0 +1,110 @@
+/*
+ * Support for the VMIVME-7805 board access to the Universe II bridge.
+ *
+ * Author: Arthur Benilov <arthur.benilov@iba-group.com>
+ * Copyright 2010 Ion Beam Application, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/poll.h>
+#include <linux/io.h>
+
+#include "vme_vmivme7805.h"
+
+static int vmic_probe(struct pci_dev *, const struct pci_device_id *);
+static void vmic_remove(struct pci_dev *);
+
+/** Base address to access FPGA register */
+static void __iomem *vmic_base;
+
+static const char driver_name[] = "vmivme_7805";
+
+static const struct pci_device_id vmic_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_VMIC, PCI_DEVICE_ID_VTIMR) },
+	{ },
+};
+
+static struct pci_driver vmic_driver = {
+	.name = driver_name,
+	.id_table = vmic_ids,
+	.probe = vmic_probe,
+	.remove = vmic_remove,
+};
+
+static int vmic_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	int retval;
+	u32 data;
+
+	/* Enable the device */
+	retval = pci_enable_device(pdev);
+	if (retval) {
+		dev_err(&pdev->dev, "Unable to enable device\n");
+		goto err;
+	}
+
+	/* Map Registers */
+	retval = pci_request_regions(pdev, driver_name);
+	if (retval) {
+		dev_err(&pdev->dev, "Unable to reserve resources\n");
+		goto err_resource;
+	}
+
+	/* Map registers in BAR 0 */
+	vmic_base = ioremap_nocache(pci_resource_start(pdev, 0), 16);
+	if (!vmic_base) {
+		dev_err(&pdev->dev, "Unable to remap CRG region\n");
+		retval = -EIO;
+		goto err_remap;
+	}
+
+	/* Clear the FPGA VME IF contents */
+	iowrite32(0, vmic_base + VME_CONTROL);
+
+	/* Clear any initial BERR  */
+	data = ioread32(vmic_base + VME_CONTROL) & 0x00000FFF;
+	data |= BM_VME_CONTROL_BERRST;
+	iowrite32(data, vmic_base + VME_CONTROL);
+
+	/* Enable the vme interface and byte swapping */
+	data = ioread32(vmic_base + VME_CONTROL) & 0x00000FFF;
+	data = data | BM_VME_CONTROL_MASTER_ENDIAN |
+			BM_VME_CONTROL_SLAVE_ENDIAN |
+			BM_VME_CONTROL_ABLE |
+			BM_VME_CONTROL_BERRI |
+			BM_VME_CONTROL_BPENA |
+			BM_VME_CONTROL_VBENA;
+	iowrite32(data, vmic_base + VME_CONTROL);
+
+	return 0;
+
+err_remap:
+	pci_release_regions(pdev);
+err_resource:
+	pci_disable_device(pdev);
+err:
+	return retval;
+}
+
+static void vmic_remove(struct pci_dev *pdev)
+{
+	iounmap(vmic_base);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+
+}
+
+module_pci_driver(vmic_driver);
+
+MODULE_DESCRIPTION("VMIVME-7805 board support driver");
+MODULE_AUTHOR("Arthur Benilov <arthur.benilov@iba-group.com>");
+MODULE_LICENSE("GPL");
+