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/*
* Copyright 2016 NXP Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/psci.h>
#include <asm/system.h>
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
#include <asm/armv8/sec_firmware.h>
#endif
int psci_update_dt(void *fdt)
{
#ifdef CONFIG_MP
#if defined(CONFIG_ARMV8_PSCI) || defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
/*
* 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() == 0xffffffff)
return 0;
#endif
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
#endif
#endif
return 0;
}
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