123 lines
3.3 KiB
ArmAsm
123 lines
3.3 KiB
ArmAsm
|
/*
|
||
|
|
* Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <arch.h>
|
||
|
|
#include <asm_macros.S>
|
||
|
|
#include <drivers/console.h>
|
||
|
|
#include <platform_def.h>
|
||
|
|
|
||
|
|
.weak plat_report_exception
|
||
|
|
.weak plat_reset_handler
|
||
|
|
.weak plat_disable_acp
|
||
|
|
.weak bl1_plat_prepare_exit
|
||
|
|
.weak plat_panic_handler
|
||
|
|
.weak bl31_plat_enable_mmu
|
||
|
|
.weak bl32_plat_enable_mmu
|
||
|
|
|
||
|
|
.weak plat_handle_uncontainable_ea
|
||
|
|
.weak plat_handle_double_fault
|
||
|
|
.weak plat_handle_el3_ea
|
||
|
|
|
||
|
|
#define MPIDR_RES_BIT_MASK 0xff000000
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* Placeholder function which should be redefined by
|
||
|
|
* each platform.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_report_exception
|
||
|
|
ret
|
||
|
|
endfunc plat_report_exception
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* Placeholder function which should be redefined by
|
||
|
|
* each platform. This function should preserve x19 - x29.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_reset_handler
|
||
|
|
ret
|
||
|
|
endfunc plat_reset_handler
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* Placeholder function which should be redefined by
|
||
|
|
* each platform. This function is allowed to use
|
||
|
|
* registers x0 - x17.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_disable_acp
|
||
|
|
ret
|
||
|
|
endfunc plat_disable_acp
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* void bl1_plat_prepare_exit(entry_point_info_t *ep_info);
|
||
|
|
* Called before exiting BL1. Default: do nothing
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func bl1_plat_prepare_exit
|
||
|
|
ret
|
||
|
|
endfunc bl1_plat_prepare_exit
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* void plat_panic_handler(void) __dead2;
|
||
|
|
* Endless loop by default.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_panic_handler
|
||
|
|
wfi
|
||
|
|
b plat_panic_handler
|
||
|
|
endfunc plat_panic_handler
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* void bl31_plat_enable_mmu(uint32_t flags);
|
||
|
|
*
|
||
|
|
* Enable MMU in BL31.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func bl31_plat_enable_mmu
|
||
|
|
b enable_mmu_direct_el3
|
||
|
|
endfunc bl31_plat_enable_mmu
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* void bl32_plat_enable_mmu(uint32_t flags);
|
||
|
|
*
|
||
|
|
* Enable MMU in BL32.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func bl32_plat_enable_mmu
|
||
|
|
b enable_mmu_direct_el1
|
||
|
|
endfunc bl32_plat_enable_mmu
|
||
|
|
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* Platform handler for Uncontainable External Abort.
|
||
|
|
*
|
||
|
|
* x0: EA reason
|
||
|
|
* x1: EA syndrome
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_handle_uncontainable_ea
|
||
|
|
b report_unhandled_exception
|
||
|
|
endfunc plat_handle_uncontainable_ea
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* Platform handler for Double Fault.
|
||
|
|
*
|
||
|
|
* x0: EA reason
|
||
|
|
* x1: EA syndrome
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_handle_double_fault
|
||
|
|
b report_unhandled_exception
|
||
|
|
endfunc plat_handle_double_fault
|
||
|
|
|
||
|
|
/* -----------------------------------------------------
|
||
|
|
* Platform handler for EL3 External Abort.
|
||
|
|
* -----------------------------------------------------
|
||
|
|
*/
|
||
|
|
func plat_handle_el3_ea
|
||
|
|
b report_unhandled_exception
|
||
|
|
endfunc plat_handle_el3_ea
|