summaryrefslogtreecommitdiff
path: root/src/soc/nvidia/tegra132/cpu_lib.S
blob: abfffb172b6fd108e601023f3038116d0f34bc48 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/*
 * This file is part of the coreboot project.
 *
 * Copyright 2014 Google Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc.
 */


.text
.global smp_processor_id
smp_processor_id:
	/* Core 0 and 1 are encoded in the Aff0 (7:0) field of MPIDR_EL1. */
	mrs	x0, mpidr_el1
	uxtb	w0, w0
	ret