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/*
* Copyright (c) 2022, Mediatek Inc. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <asm_macros.S>
#include <assert_macros.S>
#include <cpu_macros.S>
#if CONFIG_MTK_MCUSYS
#include <mcucfg.h>
#endif
#include <platform_def.h>
/*
* Declare as weak function so that can be
* overwritten by platform helpers
*/
.weak platform_mem_init
.weak plat_core_pos_by_mpidr
.weak plat_my_core_pos
.weak plat_mediatek_calc_core_pos
.global plat_mpidr_by_core_pos
.global plat_reset_handler
/* -----------------------------------------------------
* unsigned long plat_mpidr_by_core_pos(uint32_t cpuid)
* This function calcuate mpidr by cpu pos if cpu
* topology is linear.
*
* Clobbers: x0-x1
* -----------------------------------------------------
*/
func plat_mpidr_by_core_pos
lsl x0, x0, #MPIDR_AFF1_SHIFT
mrs x1, mpidr_el1
and x1, x1, #MPIDR_MT_MASK
orr x0, x0, x1
ret
endfunc plat_mpidr_by_core_pos
/* -----------------------------------------------------
* unsigned int plat_my_core_pos(void)
* This function uses the plat_arm_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
/* -----------------------------------------------------
* int plat_mediatek_calc_core_pos(u_register_t mpidr);
*
* In ARMv8.2, AFF2 is cluster id, AFF1 is core id and
* AFF0 is thread id. There is only one cluster in ARMv8.2
* and one thread in current implementation.
*
* With this function: CorePos = CoreID (AFF1)
* we do it with x0 = (x0 >> 8) & 0xff
* -----------------------------------------------------
*/
func plat_mediatek_calc_core_pos
b plat_core_pos_by_mpidr
endfunc plat_mediatek_calc_core_pos
/* ------------------------------------------------------
* int32_t plat_core_pos_by_mpidr(u_register_t mpidr)
*
* This function implements a part of the critical
* interface between the psci generic layer and the
* platform that allows the former to query the platform
* to convert an MPIDR to a unique linear index.
*
* Clobbers: x0-x1
* ------------------------------------------------------
*/
func plat_core_pos_by_mpidr
mov x1, #MPIDR_AFFLVL_MASK
and x0, x1, x0, lsr #MPIDR_AFF1_SHIFT
ret
endfunc plat_core_pos_by_mpidr
/* --------------------------------------------------------
* void platform_mem_init (void);
*
* Any memory init, relocation to be done before the
* platform boots. Called very early in the boot process.
* --------------------------------------------------------
*/
func platform_mem_init
ret
endfunc platform_mem_init
func plat_reset_handler
#if CONFIG_MTK_MCUSYS
mov x10, x30
bl plat_my_core_pos
mov x30, x10
mov w1, #0x1
lsl w1, w1, w0
ldr x0, =CPC_MCUSYS_CPU_ON_SW_HINT_SET
str w1, [x0]
dsb sy
#endif
#if CONFIG_MTK_ECC
mov x10, x30
/* enable sequence of ecc for cpus */
bl disable_core_ecc
bl ft_ecc_clear_per_core
bl enable_core_ecc
mov x30, x10
#endif
ret
endfunc plat_reset_handler
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