From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001
From: Srikant Patnaik
Date: Sun, 11 Jan 2015 12:28:04 +0530
Subject: Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
---
 arch/openrisc/lib/delay.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 arch/openrisc/lib/delay.c

(limited to 'arch/openrisc/lib/delay.c')

diff --git a/arch/openrisc/lib/delay.c b/arch/openrisc/lib/delay.c
new file mode 100644
index 00000000..01d9740a
--- /dev/null
+++ b/arch/openrisc/lib/delay.c
@@ -0,0 +1,60 @@
+/*
+ * OpenRISC Linux
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others.  All original copyrights apply as per the original source
+ * declaration.
+ *
+ * Modifications for the OpenRISC architecture:
+ * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
+ *
+ *      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
+ *
+ * Precise Delay Loops
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <asm/delay.h>
+#include <asm/timex.h>
+#include <asm/processor.h>
+
+int __devinit read_current_timer(unsigned long *timer_value)
+{
+	*timer_value = mfspr(SPR_TTCR);
+	return 0;
+}
+
+void __delay(unsigned long cycles)
+{
+	cycles_t target = get_cycles() + cycles;
+
+	while (get_cycles() < target)
+		cpu_relax();
+}
+EXPORT_SYMBOL(__delay);
+
+inline void __const_udelay(unsigned long xloops)
+{
+	unsigned long long loops;
+
+	loops = xloops * loops_per_jiffy * HZ;
+
+	__delay(loops >> 32);
+}
+EXPORT_SYMBOL(__const_udelay);
+
+void __udelay(unsigned long usecs)
+{
+	__const_udelay(usecs * 0x10C7UL); /* 2**32 / 1000000 (rounded up) */
+}
+EXPORT_SYMBOL(__udelay);
+
+void __ndelay(unsigned long nsecs)
+{
+	__const_udelay(nsecs * 0x5UL); /* 2**32 / 1000000000 (rounded up) */
+}
+EXPORT_SYMBOL(__ndelay);
-- 
cgit