1/*- 2 * Copyright (c) 2008 John Hay. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * $FreeBSD$ 25 */ 26 27#include <machine/asm.h> 28 29ASENTRY_NP(start) 30/* Initialise bss and sp */ 31 nop 32 adr r1, .Lstart 33 ldmia r1, {r1, r2, sp} /* Set initial stack and */ 34 sub r2, r2, r1 /* get zero init data */ 35 mov r3, #0 36.L1: 37 str r3, [r1], #0x0004 /* get zero init data */ 38 subs r2, r2, #4 39 bgt .L1 40 41 .extern main 42 bl main 43/* main should not return. If it does, spin forever */ 44infiniteLoop: 45 b infiniteLoop 46END(start) 47 48.Lstart: 49 .word _edata 50 .word _end 51 .word BOOT_STACK 52 53ENTRY(cpu_id) 54 mrc p15, 0, r0, c0, c0, 0 55 RET 56END(cpu_id) 57 58/* End */ 59