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, 56 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-pxa/pxa2xx.c b/kernel/arch/arm/mach-pxa/pxa2xx.c
new file mode 100644
index 000000000..447dcbb22
--- /dev/null
+++ b/kernel/arch/arm/mach-pxa/pxa2xx.c
@@ -0,0 +1,56 @@
+/*
+ * linux/arch/arm/mach-pxa/pxa2xx.c
+ *
+ * code specific to pxa2xx
+ *
+ * Copyright (C) 2008 Dmitry Baryshkov
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <mach/pxa2xx-regs.h>
+#include <mach/mfp-pxa25x.h>
+#include <mach/reset.h>
+#include <linux/platform_data/irda-pxaficp.h>
+
+void pxa2xx_clear_reset_status(unsigned int mask)
+{
+	/* RESET_STATUS_* has a 1:1 mapping with RCSR */
+	RCSR = mask;
+}
+
+static unsigned long pxa2xx_mfp_fir[] = {
+	GPIO46_FICP_RXD,
+	GPIO47_FICP_TXD,
+};
+
+static unsigned long pxa2xx_mfp_sir[] = {
+	GPIO46_STUART_RXD,
+	GPIO47_STUART_TXD,
+};
+
+static unsigned long pxa2xx_mfp_off[] = {
+	GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
+	GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
+};
+
+void pxa2xx_transceiver_mode(struct device *dev, int mode)
+{
+	if (mode & IR_OFF) {
+		pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
+	} else if (mode & IR_SIRMODE) {
+		pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
+	} else if (mode & IR_FIRMODE) {
+		pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
+	} else
+		BUG();
+}
+EXPORT_SYMBOL_GPL(pxa2xx_transceiver_mode);