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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
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source/trusted-firmware/trusted-firmware-a-2.8/plat/arm/board/common/aarch32/board_arm_helpers.S
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/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <asm_macros.S>
#include <common/bl_common.h>
#include <platform_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