/* * (C) Copyright 2008 * Texas Instruments, * * Richard Woodruff * Syed Mohammed Khasim * * 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., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include #include /* FIXME: dumping ground for prototypes */ /************************************************************ * sdelay() - simple spin loop. Will be constant time as * its generally used in bypass conditions only. This * is necessary until timers are accessible. * * not inline to increase chances its in cache when called *************************************************************/ void sdelay(unsigned long loops) { __asm__ volatile ("1:\n" "subs %0, %1, #1\n" "bne 1b":"=r" (loops):"0"(loops)); }