diff options
Diffstat (limited to 'arch/arm/cpu/armv8/cpu-dt.c')
| -rw-r--r-- | arch/arm/cpu/armv8/cpu-dt.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/cpu-dt.c b/arch/arm/cpu/armv8/cpu-dt.c new file mode 100644 index 0000000000..9ffb49c37c --- /dev/null +++ b/arch/arm/cpu/armv8/cpu-dt.c @@ -0,0 +1,31 @@ +/* + * Copyright 2016 NXP Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/psci.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) +#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); +#endif +#endif + return 0; +} |