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, 76 insertions, 0 deletions

diff --git a/kernel/arch/mips/jz4740/clock.h b/kernel/arch/mips/jz4740/clock.h
new file mode 100644
index 000000000..5d07499d7
--- /dev/null
+++ b/kernel/arch/mips/jz4740/clock.h
@@ -0,0 +1,76 @@
+/*
+ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ *  JZ4740 SoC clock support
+ *
+ *  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.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __MIPS_JZ4740_CLOCK_H__
+#define __MIPS_JZ4740_CLOCK_H__
+
+#include <linux/list.h>
+
+struct jz4740_clock_board_data {
+	unsigned long ext_rate;
+	unsigned long rtc_rate;
+};
+
+extern struct jz4740_clock_board_data jz4740_clock_bdata;
+
+void jz4740_clock_suspend(void);
+void jz4740_clock_resume(void);
+
+struct clk;
+
+struct clk_ops {
+	unsigned long (*get_rate)(struct clk *clk);
+	unsigned long (*round_rate)(struct clk *clk, unsigned long rate);
+	int (*set_rate)(struct clk *clk, unsigned long rate);
+	int (*enable)(struct clk *clk);
+	int (*disable)(struct clk *clk);
+	int (*is_enabled)(struct clk *clk);
+
+	int (*set_parent)(struct clk *clk, struct clk *parent);
+
+};
+
+struct clk {
+	const char *name;
+	struct clk *parent;
+
+	uint32_t gate_bit;
+
+	const struct clk_ops *ops;
+
+	struct list_head list;
+
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *debugfs_entry;
+	struct dentry *debugfs_parent_entry;
+#endif
+
+};
+
+#define JZ4740_CLK_NOT_GATED ((uint32_t)-1)
+
+int clk_is_enabled(struct clk *clk);
+
+#ifdef CONFIG_DEBUG_FS
+void jz4740_clock_debugfs_init(void);
+void jz4740_clock_debugfs_add_clk(struct clk *clk);
+void jz4740_clock_debugfs_update_parent(struct clk *clk);
+#else
+static inline void jz4740_clock_debugfs_init(void) {};
+static inline void jz4740_clock_debugfs_add_clk(struct clk *clk) {};
+static inline void jz4740_clock_debugfs_update_parent(struct clk *clk) {};
+#endif
+
+#endif