mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-16 01:24:27 +00:00
de310e1e5f
- Add basic platform setup. - Add MT8188 documentation at docs/plat/. - Add generic CPU helper functions. - Add basic register address. - Add mtk_pm.c in lib/pm TEST=build pass BUG=b:236331724 Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Change-Id: I5f8617c42ffba2c9d3a16f3980cb75fda5624031
45 lines
1.2 KiB
ArmAsm
45 lines
1.2 KiB
ArmAsm
/*
|
|
* Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <arch.h>
|
|
#include <asm_macros.S>
|
|
#include <platform_def.h>
|
|
|
|
.globl plat_is_my_cpu_primary
|
|
.globl plat_my_core_pos
|
|
.globl plat_mediatek_calc_core_pos
|
|
|
|
func plat_is_my_cpu_primary
|
|
mrs x0, mpidr_el1
|
|
and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
|
|
cmp x0, #PLAT_PRIMARY_CPU
|
|
cset x0, eq
|
|
ret
|
|
endfunc plat_is_my_cpu_primary
|
|
|
|
/* -----------------------------------------------------
|
|
* unsigned int plat_my_core_pos(void)
|
|
* This function uses the plat_mediatek_calc_core_pos()
|
|
* definition to get the index of the calling CPU.
|
|
* -----------------------------------------------------
|
|
*/
|
|
func plat_my_core_pos
|
|
mrs x0, mpidr_el1
|
|
b plat_mediatek_calc_core_pos
|
|
endfunc plat_my_core_pos
|
|
|
|
/* -----------------------------------------------------
|
|
* unsigned int plat_mediatek_calc_core_pos(u_register_t mpidr);
|
|
*
|
|
* With this function: CorePos = CoreID (AFF1)
|
|
* we do it with x0 = (x0 >> 8) & 0xff
|
|
* -----------------------------------------------------
|
|
*/
|
|
func plat_mediatek_calc_core_pos
|
|
mov x1, #MPIDR_AFFLVL_MASK
|
|
and x0, x1, x0, lsr #MPIDR_AFF1_SHIFT
|
|
ret
|
|
endfunc plat_mediatek_calc_core_pos
|