2 * Copyright 2016 NXP Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/system.h>
10 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
11 #include <asm/armv8/sec_firmware.h>
14 int psci_update_dt(void *fdt)
17 #if defined(CONFIG_ARMV8_PSCI) || defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
19 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
21 * If the PSCI in SEC Firmware didn't work, avoid to update the
22 * device node of PSCI. But still return 0 instead of an error
23 * number to support detecting PSCI dynamically and then switching
24 * the SMP boot method between PSCI and spin-table.
26 if (sec_firmware_support_psci_version() == 0xffffffff)
31 #if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
32 /* secure code lives in RAM, keep it alive */
33 fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
34 __secure_end - __secure_start);