mptramp.S revision 267130 
133965Sjdp/*-
2104834Sobrien * Copyright 2011 Semihalf
333965Sjdp * All rights reserved.
433965Sjdp *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
28#include <machine/armreg.h>
29
30__FBSDID("$FreeBSD: head/sys/arm/mv/armadaxp/mptramp.S 267130 2014-06-05 21:37:04Z zbb $");
31
32.global _C_LABEL(mptramp_pmu_boot)
33
34ASENTRY_NP(mptramp)
35	mov	r0, #0
36	mcr	p15, 0, r0, c7, c7, 0
37
38	mrs	r3, cpsr
39	bic	r3, r3, #(PSR_MODE)
40	orr	r3, r3, #(PSR_SVC32_MODE)
41        msr	cpsr_fsxc, r3
42
43	mrc	p15, 0, r0, c0, c0, 5
44	and	r0, #0x0f		/* Get CPU ID */
45
46	/* Read boot address for CPU */
47	mov	r1, #0x100
48	mul	r2, r0, r1
49	ldr	r1, mptramp_pmu_boot
50	add	r0, r2, r1
51	ldr	r1, [r0], #0x00
52
53	mov pc, r1
54
55_C_LABEL(mptramp_pmu_boot):
56	.word 0x0
57
58END(mptramp)
59
60	.global _C_LABEL(mptramp_end)
61_C_LABEL(mptramp_end):
62