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-rw-r--r--arch/mips/include/asm/delay.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/mips/include/asm/delay.h b/arch/mips/include/asm/delay.h
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+++ b/arch/mips/include/asm/delay.h
@@ -0,0 +1,32 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 by Waldorf Electronics
+ * Copyright (C) 1995 - 2000, 01, 03 by Ralf Baechle
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2007 Maciej W. Rozycki
+ */
+#ifndef _ASM_DELAY_H
+#define _ASM_DELAY_H
+
+#include <linux/param.h>
+
+extern void __delay(unsigned long loops);
+extern void __ndelay(unsigned long ns);
+extern void __udelay(unsigned long us);
+
+#define ndelay(ns) __ndelay(ns)
+#define udelay(us) __udelay(us)
+
+/* make sure "usecs *= ..." in udelay do not overflow. */
+#if HZ >= 1000
+#define MAX_UDELAY_MS 1
+#elif HZ <= 200
+#define MAX_UDELAY_MS 5
+#else
+#define MAX_UDELAY_MS (1000 / HZ)
+#endif
+
+#endif /* _ASM_DELAY_H */