diff options
Diffstat (limited to 'roms/u-boot/arch/arm/cpu/armv7/psci-common.c')
| -rw-r--r-- | roms/u-boot/arch/arm/cpu/armv7/psci-common.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/cpu/armv7/psci-common.c b/roms/u-boot/arch/arm/cpu/armv7/psci-common.c new file mode 100644 index 000000000..a328b2bc0 --- /dev/null +++ b/roms/u-boot/arch/arm/cpu/armv7/psci-common.c @@ -0,0 +1,46 @@ +/* + * Common PSCI functions + * + * Copyright (C) 2016 Chen-Yu Tsai + * Author: Chen-Yu Tsai <wens@csie.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <asm/armv7.h> +#include <asm/macro.h> +#include <asm/psci.h> +#include <asm/secure.h> +#include <linux/linkage.h> + +static u32 psci_target_pc[CONFIG_ARMV7_PSCI_NR_CPUS] __secure_data = { 0 }; +static u32 psci_context_id[CONFIG_ARMV7_PSCI_NR_CPUS] __secure_data = { 0 }; + +void __secure psci_save(int cpu, u32 pc, u32 context_id) +{ + psci_target_pc[cpu] = pc; + psci_context_id[cpu] = context_id; + dsb(); +} + +u32 __secure psci_get_target_pc(int cpu) +{ + return psci_target_pc[cpu]; +} + +u32 __secure psci_get_context_id(int cpu) +{ + return psci_context_id[cpu]; +} + |