1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2016 NXP Semiconductor, Inc.
9 #include <asm/system.h>
10 #include <asm/armv8/sec_firmware.h>
11 #include <linux/libfdt.h>
13 __weak int psci_update_dt(void *fdt)
16 * If the PSCI in SEC Firmware didn't work, avoid to update the
17 * device node of PSCI. But still return 0 instead of an error
18 * number to support detecting PSCI dynamically and then switching
19 * the SMP boot method between PSCI and spin-table.
21 if (CONFIG_IS_ENABLED(SEC_FIRMWARE_ARMV8_PSCI) &&
22 sec_firmware_support_psci_version() == PSCI_INVALID_VER)
27 #if defined(CONFIG_ARMV8_PSCI) && !defined(CONFIG_ARMV8_SECURE_BASE)
28 /* secure code lives in RAM, keep it alive */
29 fdt_add_mem_rsv(fdt, (unsigned long)__secure_start,
30 __secure_end - __secure_start);