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-rw-r--r--arch/nds32/include/asm/delay.h39
1 files changed, 0 insertions, 39 deletions
diff --git a/arch/nds32/include/asm/delay.h b/arch/nds32/include/asm/delay.h
deleted file mode 100644
index 56ea3894f8f8..000000000000
--- a/arch/nds32/include/asm/delay.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#ifndef __NDS32_DELAY_H__
-#define __NDS32_DELAY_H__
-
-#include <asm/param.h>
-
-/* There is no clocksource cycle counter in the CPU. */
-static inline void __delay(unsigned long loops)
-{
- __asm__ __volatile__(".align 2\n"
- "1:\n"
- "\taddi\t%0, %0, -1\n"
- "\tbgtz\t%0, 1b\n"
- :"=r"(loops)
- :"0"(loops));
-}
-
-static inline void __udelay(unsigned long usecs, unsigned long lpj)
-{
- usecs *= (unsigned long)(((0x8000000000000000ULL / (500000 / HZ)) +
- 0x80000000ULL) >> 32);
- usecs = (unsigned long)(((unsigned long long)usecs * lpj) >> 32);
- __delay(usecs);
-}
-
-#define udelay(usecs) __udelay((usecs), loops_per_jiffy)
-
-/* 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