74 lines
2.0 KiB
ArmAsm
74 lines
2.0 KiB
ArmAsm
|
/*
|
||
|
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
|
||
|
*
|
||
|
* SPDX-License-Identifier: BSD-3-Clause
|
||
|
*/
|
||
|
|
||
|
#include <arch.h>
|
||
|
#include <asm_macros.S>
|
||
|
#include <gicv3.h>
|
||
|
#include <platform_def.h>
|
||
|
|
||
|
.globl plat_secondary_cold_boot_setup
|
||
|
.globl plat_is_my_cpu_primary
|
||
|
.globl versal_calc_core_pos
|
||
|
.globl platform_mem_init
|
||
|
.globl plat_my_core_pos
|
||
|
|
||
|
/* -----------------------------------------------------
|
||
|
* void plat_secondary_cold_boot_setup (void);
|
||
|
*
|
||
|
* This function performs any platform specific actions
|
||
|
* needed for a secondary cpu after a cold reset e.g
|
||
|
* mark the cpu's presence, mechanism to place it in a
|
||
|
* holding pen etc.
|
||
|
* TODO: Should we read the PSYS register to make sure
|
||
|
* that the request has gone through.
|
||
|
* -----------------------------------------------------
|
||
|
*/
|
||
|
func plat_secondary_cold_boot_setup
|
||
|
mrs x0, mpidr_el1
|
||
|
|
||
|
/*
|
||
|
* There is no sane reason to come out of this wfi. This
|
||
|
* cpu will be powered on and reset by the cpu_on pm api
|
||
|
*/
|
||
|
dsb sy
|
||
|
bl plat_panic_handler
|
||
|
endfunc plat_secondary_cold_boot_setup
|
||
|
|
||
|
func plat_is_my_cpu_primary
|
||
|
mov x9, x30
|
||
|
bl plat_my_core_pos
|
||
|
cmp x0, #VERSAL_PRIMARY_CPU
|
||
|
cset x0, eq
|
||
|
ret x9
|
||
|
endfunc plat_is_my_cpu_primary
|
||
|
|
||
|
/* -----------------------------------------------------
|
||
|
* unsigned int plat_my_core_pos(void)
|
||
|
* This function uses the versal_calc_core_pos()
|
||
|
* definition to get the index of the calling CPU.
|
||
|
* -----------------------------------------------------
|
||
|
*/
|
||
|
func plat_my_core_pos
|
||
|
mrs x0, mpidr_el1
|
||
|
b versal_calc_core_pos
|
||
|
endfunc plat_my_core_pos
|
||
|
|
||
|
func versal_calc_core_pos
|
||
|
and x1, x0, #MPIDR_CPU_MASK
|
||
|
and x0, x0, #MPIDR_CLUSTER_MASK
|
||
|
add x0, x1, x0, LSR #6
|
||
|
ret
|
||
|
endfunc versal_calc_core_pos
|
||
|
|
||
|
/* ---------------------------------------------------------------------
|
||
|
* We don't need to carry out any memory initialization on VERSAL
|
||
|
* platform. The Secure RAM is accessible straight away.
|
||
|
* ---------------------------------------------------------------------
|
||
|
*/
|
||
|
func platform_mem_init
|
||
|
ret
|
||
|
endfunc platform_mem_init
|