1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2016 NXP Semiconductor, Inc.
8 #include <asm/system.h>
9 #include <asm/armv8/sec_firmware.h>
11 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
12 int psci_update_dt(void *fdt)
15 * If the PSCI in SEC Firmware didn't work, avoid to update the
16 * device node of PSCI. But still return 0 instead of an error
17 * number to support detecting PSCI dynamically and then switching
18 * the SMP boot method between PSCI and spin-table.
20 if (sec_firmware_support_psci_version() == PSCI_INVALID_VER)
24 #if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
25 /* secure code lives in RAM, keep it alive */
26 fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
27 __secure_end - __secure_start);