2 * Copyright (C) 2013 - ARM Ltd
3 * Author: Marc Zyngier <marc.zyngier@arm.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #ifndef __ARM_PSCI_H__
19 #define __ARM_PSCI_H__
21 /* PSCI 0.1 interface */
22 #define ARM_PSCI_FN_BASE 0x95c1ba5e
23 #define ARM_PSCI_FN(n) (ARM_PSCI_FN_BASE + (n))
25 #define ARM_PSCI_FN_CPU_SUSPEND ARM_PSCI_FN(0)
26 #define ARM_PSCI_FN_CPU_OFF ARM_PSCI_FN(1)
27 #define ARM_PSCI_FN_CPU_ON ARM_PSCI_FN(2)
28 #define ARM_PSCI_FN_MIGRATE ARM_PSCI_FN(3)
30 #define ARM_PSCI_RET_SUCCESS 0
31 #define ARM_PSCI_RET_NI (-1)
32 #define ARM_PSCI_RET_INVAL (-2)
33 #define ARM_PSCI_RET_DENIED (-3)
35 /* PSCI 0.2 interface */
36 #define ARM_PSCI_0_2_FN_BASE 0x84000000
37 #define ARM_PSCI_0_2_FN(n) (ARM_PSCI_0_2_FN_BASE + (n))
39 #define ARM_PSCI_0_2_FN_PSCI_VERSION ARM_PSCI_0_2_FN(0)
40 #define ARM_PSCI_0_2_FN_CPU_SUSPEND ARM_PSCI_0_2_FN(1)
41 #define ARM_PSCI_0_2_FN_CPU_OFF ARM_PSCI_0_2_FN(2)
42 #define ARM_PSCI_0_2_FN_CPU_ON ARM_PSCI_0_2_FN(3)
43 #define ARM_PSCI_0_2_FN_AFFINITY_INFO ARM_PSCI_0_2_FN(4)
44 #define ARM_PSCI_0_2_FN_MIGRATE ARM_PSCI_0_2_FN(5)
45 #define ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE ARM_PSCI_0_2_FN(6)
46 #define ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN(7)
47 #define ARM_PSCI_0_2_FN_SYSTEM_OFF ARM_PSCI_0_2_FN(8)
48 #define ARM_PSCI_0_2_FN_SYSTEM_RESET ARM_PSCI_0_2_FN(9)
50 /* 1KB stack per core */
51 #define ARM_PSCI_STACK_SHIFT 10
52 #define ARM_PSCI_STACK_SIZE (1 << ARM_PSCI_STACK_SHIFT)
55 #include <asm/types.h>
57 void psci_cpu_entry(void);
58 u32 psci_get_cpu_id(void);
59 u32 psci_get_cpu_stack_top(int cpu);
60 void psci_cpu_off_common(void);
62 int psci_update_dt(void *fdt);
63 void psci_board_init(void);
64 #endif /* ! __ASSEMBLY__ */
66 #endif /* __ARM_PSCI_H__ */