xref: /rk3399_ARM-atf/plat/arm/board/common/aarch64/board_arm_helpers.S (revision 82cb2c1ad9897473743f08437d0a3995bed561b9)
1/*
2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6#include <asm_macros.S>
7#include <bl_common.h>
8#include <v2m_def.h>
9
10	.globl  plat_report_exception
11
12
13	/* ---------------------------------------------
14	 * void plat_report_exception(unsigned int type)
15	 * Function to report an unhandled exception
16	 * with platform-specific means.
17	 * On FVP platform, it updates the LEDs
18	 * to indicate where we are
19	 * ---------------------------------------------
20	 */
21func plat_report_exception
22	mrs	x1, CurrentEl
23	lsr	x1, x1, #MODE_EL_SHIFT
24	lsl	x1, x1, #V2M_SYS_LED_EL_SHIFT
25	lsl	x0, x0, #V2M_SYS_LED_EC_SHIFT
26	mov	x2, #(SECURE << V2M_SYS_LED_SS_SHIFT)
27	orr	x0, x0, x2
28	orr	x0, x0, x1
29	mov	x1, #V2M_SYSREGS_BASE
30	add	x1, x1, #V2M_SYS_LED
31	str	w0, [x1]
32	ret
33endfunc plat_report_exception
34