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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2016 NXP Semiconductor, Inc.
*/
#include <common.h>
#include <asm/cache.h>
#include <asm/psci.h>
#include <asm/system.h>
#include <asm/armv8/sec_firmware.h>
#if CONFIG_IS_ENABLED(ARMV8_SEC_FIRMWARE_SUPPORT)
int psci_update_dt(void *fdt)
{
/*
* If the PSCI in SEC Firmware didn't work, avoid to update the
* device node of PSCI. But still return 0 instead of an error
* number to support detecting PSCI dynamically and then switching
* the SMP boot method between PSCI and spin-table.
*/
if (sec_firmware_support_psci_version() == PSCI_INVALID_VER)
return 0;
fdt_psci(fdt);
#if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
/* secure code lives in RAM, keep it alive */
fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
__secure_end - __secure_start);
#endif
return 0;
}
#endif
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