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/*
* Copyright (c) 2015-2023, ARM Limited and Contributors. All rights reserved.
*
* Copyright (C) 2023 Nuvoton Ltd.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <arch_helpers.h>
#include <lib/psci/psci.h>
#include <plat/arm/common/plat_arm.h>
#include <plat/common/platform.h>
#include <platform_def.h>
/* Allow npcm845x to override these functions */
#pragma weak plat_arm_program_trusted_mailbox
#pragma weak plat_setup_psci_ops /* changed to weak */
/*******************************************************************************
* ARM standard platform handler called to check the validity of the non secure
* entrypoint. Returns 0 if the entrypoint is valid, or -1 otherwise.
******************************************************************************/
int arm_validate_ns_entrypoint(uintptr_t entrypoint)
{
/*
* Check if the non secure entrypoint lies within the non
* secure DRAM.
*/
if ((entrypoint >= ARM_NS_DRAM1_BASE) &&
(entrypoint < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE))) {
return 0;
}
#ifdef __aarch64__
if ((entrypoint >= ARM_DRAM2_BASE) &&
(entrypoint < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE))) {
return 0;
}
#endif
return -1;
}
int arm_validate_psci_entrypoint(uintptr_t entrypoint)
{
return (arm_validate_ns_entrypoint(entrypoint) == 0) ? PSCI_E_SUCCESS :
PSCI_E_INVALID_ADDRESS;
}
/******************************************************************************
* Helper function to save the platform state before a system suspend. Save the
* state of the system components which are not in the Always ON power domain.
*****************************************************************************/
void arm_system_pwr_domain_save(void)
{
/* Assert system power domain is available on the platform */
assert(PLAT_MAX_PWR_LVL > ARM_PWR_LVL1);
plat_arm_gic_save();
/*
* Unregister console now so that it is not registered for a second
* time during resume.
*/
arm_console_runtime_end();
/*
* All the other peripheral which are configured by TF-A are
* re-initialized on resume from system suspend. Hence we
* don't save their state here.
*/
}
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