1/* SPDX-License-Identifier: BSD-2-Clause */ 2/* 3 * Copyright (C) 2017, Fuzhou Rockchip Electronics Co., Ltd. 4 * Copyright (C) 2018, Linaro Limited 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 are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright notice, 11 * this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include <asm.S> 31#include <arm.h> 32#include <arm32_macros.S> 33#include <kernel/unwind.h> 34 35FUNC plat_cpu_reset_early , : 36UNWIND( .fnstart) 37 38 /* NSACR configuration */ 39 read_nsacr r0 40 orr r0, r0, #NSACR_CP10 41 orr r0, r0, #NSACR_CP11 42 orr r0, r0, #NSACR_NS_SMP 43 write_nsacr r0 44 45 /* Enable SMP bit */ 46 read_actlr r0 47 orr r0, r0, #ACTLR_SMP 48 write_actlr r0 49 50 bx lr 51 52UNWIND( .fnend) 53END_FUNC plat_cpu_reset_early 54