arm-trusted-firmware/plat/arm/board/common/aarch32/board_arm_helpers.S

56 lines
2.2 KiB
ArmAsm

/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <asm_macros.S>
#include <bl_common.h>
#include <v2m_def.h>
.globl plat_report_exception
/* -------------------------------------------------------
* void plat_report_exception(unsigned int type)
* Function to report an unhandled exception
* with platform-specific means.
* On FVP platform, it updates the LEDs
* to indicate where we are.
* SYS_LED[0] - 0x0
* SYS_LED[2:1] - 0x0
* SYS_LED[7:3] - Exception Mode.
* Clobbers: r0-r1
* -------------------------------------------------------
*/
func plat_report_exception
lsl r0, r0, #V2M_SYS_LED_EC_SHIFT
ldr r1, =V2M_SYSREGS_BASE
add r1, r1, #V2M_SYS_LED
str r0, [r1]
bx lr
endfunc plat_report_exception