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/*
* Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <asm_macros.S>
#include <console.h>
#include <platform_def.h>
.weak plat_report_exception
.weak plat_crash_console_init
.weak plat_crash_console_putc
.weak plat_crash_console_flush
.weak plat_reset_handler
.weak plat_disable_acp
.weak bl1_plat_prepare_exit
.weak plat_panic_handler
#if !ENABLE_PLAT_COMPAT
.globl platform_get_core_pos
#define MPIDR_RES_BIT_MASK 0xff000000
/* ------------------------------------------------------------------
* int platform_get_core_pos(int mpidr)
* Returns the CPU index of the CPU specified by mpidr. This is
* defined when platform compatibility is disabled to enable Trusted
* Firmware components like SPD using the old platform API to work.
* This API is deprecated and it assumes that the mpidr specified is
* that of a valid and present CPU. Instead, plat_my_core_pos()
* should be used for CPU index of the current CPU and
* plat_core_pos_by_mpidr() should be used for CPU index of a
* CPU specified by its mpidr.
* ------------------------------------------------------------------
*/
func_deprecated platform_get_core_pos
bic x0, x0, #MPIDR_RES_BIT_MASK
mrs x1, mpidr_el1
bic x1, x1, #MPIDR_RES_BIT_MASK
cmp x0, x1
beq plat_my_core_pos
b platform_core_pos_helper
endfunc_deprecated platform_get_core_pos
#endif
/* -----------------------------------------------------
* Placeholder function which should be redefined by
* each platform.
* -----------------------------------------------------
*/
func plat_report_exception
ret
endfunc plat_report_exception
#if MULTI_CONSOLE_API
/* -----------------------------------------------------
* int plat_crash_console_init(void)
* Use normal console by default. Switch it to crash
* mode so serial consoles become active again.
* NOTE: This default implementation will only work for
* crashes that occur after a normal console (marked
* valid for the crash state) has been registered with
* the console framework. To debug crashes that occur
* earlier, the platform has to override these functions
* with an implementation that initializes a console
* driver with hardcoded parameters. See
* docs/porting-guide.rst for more information.
* -----------------------------------------------------
*/
func plat_crash_console_init
#if defined(IMAGE_BL1)
/*
* BL1 code can possibly crash so early that the data segment is not yet
* accessible. Don't risk undefined behavior by trying to run the normal
* console framework. Platforms that want to debug BL1 will need to
* override this with custom functions that can run from registers only.
*/
mov x0, #0
ret
#else /* IMAGE_BL1 */
mov x3, x30
mov x0, #CONSOLE_FLAG_CRASH
bl console_switch_state
mov x0, #1
ret x3
#endif
endfunc plat_crash_console_init
/* -----------------------------------------------------
* void plat_crash_console_putc(int character)
* Output through the normal console by default.
* -----------------------------------------------------
*/
func plat_crash_console_putc
b console_putc
endfunc plat_crash_console_putc
/* -----------------------------------------------------
* void plat_crash_console_flush(void)
* Flush normal console by default.
* -----------------------------------------------------
*/
func plat_crash_console_flush
b console_flush
endfunc plat_crash_console_flush
#else /* MULTI_CONSOLE_API */
/* -----------------------------------------------------
* In the old API these are all no-op stubs that need to
* be overridden by the platform to be useful.
* -----------------------------------------------------
*/
func plat_crash_console_init
mov x0, #0
ret
endfunc plat_crash_console_init
func plat_crash_console_putc
ret
endfunc plat_crash_console_putc
func plat_crash_console_flush
ret
endfunc plat_crash_console_flush
#endif
/* -----------------------------------------------------
* 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
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