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Diffstat (limited to 'include/asm-blackfin/delay.h')
-rw-r--r-- | include/asm-blackfin/delay.h | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/include/asm-blackfin/delay.h b/include/asm-blackfin/delay.h deleted file mode 100644 index 3af6ad3..0000000 --- a/include/asm-blackfin/delay.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * U-boot - delay.h Routines for introducing delays - * - * Copyright (c) 2005-2007 Analog Devices Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * 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., 51 Franklin St, Fifth Floor, Boston, - * MA 02110-1301 USA - */ - -#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. - */ - -extern __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) - */ -extern __inline__ void __udelay(unsigned long usecs) -{ - __delay(usecs); -} - -#endif |