lx2160a_helpers.S

/*
 * Copyright 2018-2020 NXP
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *
 */

#include <arch.h>
#include <asm_macros.S>

#include <platform_def.h>

.globl	plat_secondary_cold_boot_setup
.globl	plat_is_my_cpu_primary
.globl	plat_reset_handler
.globl  platform_mem_init


func platform_mem1_init
	ret
endfunc platform_mem1_init


func platform_mem_init
	ret
endfunc	platform_mem_init


func apply_platform_errata

	ret
endfunc apply_platform_errata


func plat_reset_handler
	mov x29, x30
	bl  apply_platform_errata

#if defined(IMAGE_BL31)
	ldr x0, =POLICY_SMMU_PAGESZ_64K
	cbz x0, 1f
	/* Set the SMMU page size in the sACR register */
	bl _set_smmu_pagesz_64
#endif
1:
	mov x30, x29

	ret
endfunc plat_reset_handler


/* 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.
 */
func plat_secondary_cold_boot_setup
	/* lx2160a does not do cold boot for secondary CPU */
cb_panic:
	b	cb_panic
endfunc plat_secondary_cold_boot_setup


/* unsigned int plat_is_my_cpu_primary (void);
 *
 * Find out whether the current cpu is the primary
 * cpu.
 */
func plat_is_my_cpu_primary
	mrs	x0, mpidr_el1
	and	x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
	cmp	x0, 0x0
	cset	w0, eq
	ret
endfunc plat_is_my_cpu_primary