1/*- 2 * Copyright 2011 Semihalf 3 * All rights reserved. 4 * 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("$FreeBSD$"); 31 32ASENTRY_NP(mptramp) 33 mov r0, #0 34 mcr p15, 0, r0, c7, c7, 0 35 36 mrs r3, cpsr 37 bic r3, r3, #(PSR_MODE) 38 orr r3, r3, #(PSR_SVC32_MODE) 39 msr cpsr_fsxc, r3 40 41 mrc p15, 0, r0, c0, c0, 5 42 and r0, #0x0f /* Get CPU ID */ 43 44 /* Read boot address for CPU */ 45 mov r1, #0x100 46 mul r2, r0, r1 47 ldr r1, Lpmureg 48 add r0, r2, r1 49 ldr r1, [r0], #0x00 50 51 mov pc, r1 52 53Lpmureg: 54 .word 0xd0022124 55END(mptramp) 56 57