| /* |
| * 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; |
| } |
