1/* $NetBSD: cpufunc_asm_arm1136.S,v 1.4 2013/08/18 06:28:18 matt Exp $ */ 2 3/* 4 * Copyright (c) 2007 Microsoft 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Microsoft 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTERS BE LIABLE FOR ANY DIRECT, 23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32#include "assym.h" 33#include <machine/asm.h> 34#include <arm/locore.h> 35 36RCSID("$NetBSD: cpufunc_asm_arm1136.S,v 1.4 2013/08/18 06:28:18 matt Exp $") 37 38ENTRY_NP(arm1136_sleep_rev0) /* errata 336501 */ 39 mov r0, #0 40 mcr p15, 0, r0, c7, c10, 2 /* clean data cache line (via index) */ 41 mcr p15, 0, r0, c7, c10, 5 /* data memory barrier */ 42 mcr p15, 0, r0, c7, c0, 4 /* wait for interrupt */ 43 RET 44END(arm1136_sleep_rev0) 45