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Diffstat (limited to 'arch/blackfin/include/asm/delay.h')
| -rw-r--r-- | arch/blackfin/include/asm/delay.h | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/arch/blackfin/include/asm/delay.h b/arch/blackfin/include/asm/delay.h deleted file mode 100644 index 06c3edd03e..0000000000 --- a/arch/blackfin/include/asm/delay.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * U-Boot - delay.h Routines for introducing delays - * - * Copyright (c) 2005-2007 Analog Devices Inc. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef _BLACKFIN_DELAY_H -#define _BLACKFIN_DELAY_H - -/* - * Changes made by akbar.hussain@Lineo.com, for BLACKFIN - * Copyright (C) 1994 Hamish Macdonald - * - * Delay routines, using a pre-computed "loops_per_second" value. - */ - -static __inline__ void __delay(unsigned long loops) -{ - __asm__ __volatile__("1:\t%0 += -1;\n\t" - "cc = %0 == 0;\n\t" - "if ! cc jump 1b;\n":"=d"(loops) - :"0"(loops)); -} - -/* - * Use only for very small delays ( < 1 msec). Should probably use a - * lookup table, really, as the multiplications take much too long with - * short delays. This is a "reasonable" implementation, though (and the - * first constant multiplications gets optimized away if the delay is - * a constant) - */ -static __inline__ void __udelay(unsigned long usecs) -{ - __delay(usecs); -} - -#endif |