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srt0.S revision 1.1 
      1 /*	$NetBSD: srt0.S,v 1.1 2002/02/10 01:58:20 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed for the NetBSD Project by
     20  *	Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #include <machine/asm.h>
     39 
     40 ASENTRY_NP(_start)
     41 	b	_C_LABEL(startup)
     42 
     43 ENTRY(cpufunc_id)
     44 	mrc	p15, 0, r0, c0, c0, 0
     45 	mov	pc, lr
     46 
     47 	.data
     48 
     49 	.global	_C_LABEL(sa110_cache_clean_addr)
     50 _C_LABEL(sa110_cache_clean_addr):
     51 	.word	0x00000000
     52 
     53 	.global	_C_LABEL(sa110_cache_clean_size)
     54 _C_LABEL(sa110_cache_clean_size):
     55 	.word	0x00008000
     56 
     57 	.text
     58 Lsa110_cache_clean_addr:
     59 	.word	_C_LABEL(sa110_cache_clean_addr)
     60 Lsa110_cache_clean_size:
     61 	.word	_C_LABEL(sa110_cache_clean_size)
     62 
     63 ENTRY(sa110_cache_syncI)
     64 	ldr	r2, Lsa110_cache_clean_addr
     65 	ldmia	r2, {r0, r1}
     66 
     67 1:	ldr	r2, [r0], #32			/* clean D$ */
     68 	subs	r1, r1, #32
     69 	bne	1b
     70 
     71 	mcr	p15, 0, r0, c7, c10, 4		/* drain write buffer */
     72 	mcr	p15, 0, r0, c7, c5, 0		/* flush I$ */
     73 
     74 	mov	pc, lr
     75