mirror of
https://github.com/AsahiLinux/u-boot
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9ce751a6f5
This function is no more used, and replaced by psci_save which save also context id as requested by PSCI requirements. Even if the context id is not used by Linux, it should be saved and restored in r0 when the CPU_ON is performed. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
112 lines
4.1 KiB
C
112 lines
4.1 KiB
C
/*
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* Copyright (C) 2013 - ARM Ltd
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* Author: Marc Zyngier <marc.zyngier@arm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ARM_PSCI_H__
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#define __ARM_PSCI_H__
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#define ARM_PSCI_VER_1_0 (0x00010000)
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#define ARM_PSCI_VER_0_2 (0x00000002)
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/* PSCI 0.1 interface */
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#define ARM_PSCI_FN_BASE 0x95c1ba5e
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#define ARM_PSCI_FN(n) (ARM_PSCI_FN_BASE + (n))
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#define ARM_PSCI_FN_CPU_SUSPEND ARM_PSCI_FN(0)
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#define ARM_PSCI_FN_CPU_OFF ARM_PSCI_FN(1)
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#define ARM_PSCI_FN_CPU_ON ARM_PSCI_FN(2)
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#define ARM_PSCI_FN_MIGRATE ARM_PSCI_FN(3)
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#define ARM_PSCI_RET_SUCCESS 0
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#define ARM_PSCI_RET_NI (-1)
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#define ARM_PSCI_RET_INVAL (-2)
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#define ARM_PSCI_RET_DENIED (-3)
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#define ARM_PSCI_RET_ALREADY_ON (-4)
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#define ARM_PSCI_RET_ON_PENDING (-5)
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#define ARM_PSCI_RET_INTERNAL_FAILURE (-6)
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#define ARM_PSCI_RET_NOT_PRESENT (-7)
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#define ARM_PSCI_RET_DISABLED (-8)
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#define ARM_PSCI_RET_INVALID_ADDRESS (-9)
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/* PSCI 0.2 interface */
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#define ARM_PSCI_0_2_FN_BASE 0x84000000
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#define ARM_PSCI_0_2_FN(n) (ARM_PSCI_0_2_FN_BASE + (n))
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#define ARM_PSCI_0_2_FN64_BASE 0xC4000000
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#define ARM_PSCI_0_2_FN64(n) (ARM_PSCI_0_2_FN64_BASE + (n))
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#define ARM_PSCI_0_2_FN_PSCI_VERSION ARM_PSCI_0_2_FN(0)
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#define ARM_PSCI_0_2_FN_CPU_SUSPEND ARM_PSCI_0_2_FN(1)
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#define ARM_PSCI_0_2_FN_CPU_OFF ARM_PSCI_0_2_FN(2)
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#define ARM_PSCI_0_2_FN_CPU_ON ARM_PSCI_0_2_FN(3)
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#define ARM_PSCI_0_2_FN_AFFINITY_INFO ARM_PSCI_0_2_FN(4)
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#define ARM_PSCI_0_2_FN_MIGRATE ARM_PSCI_0_2_FN(5)
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#define ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE ARM_PSCI_0_2_FN(6)
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#define ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN(7)
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#define ARM_PSCI_0_2_FN_SYSTEM_OFF ARM_PSCI_0_2_FN(8)
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#define ARM_PSCI_0_2_FN_SYSTEM_RESET ARM_PSCI_0_2_FN(9)
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#define ARM_PSCI_0_2_FN64_CPU_SUSPEND ARM_PSCI_0_2_FN64(1)
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#define ARM_PSCI_0_2_FN64_CPU_ON ARM_PSCI_0_2_FN64(3)
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#define ARM_PSCI_0_2_FN64_AFFINITY_INFO ARM_PSCI_0_2_FN64(4)
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#define ARM_PSCI_0_2_FN64_MIGRATE ARM_PSCI_0_2_FN64(5)
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#define ARM_PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN64(7)
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/* PSCI 1.0 interface */
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#define ARM_PSCI_1_0_FN_PSCI_FEATURES ARM_PSCI_0_2_FN(10)
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#define ARM_PSCI_1_0_FN_CPU_FREEZE ARM_PSCI_0_2_FN(11)
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#define ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND ARM_PSCI_0_2_FN(12)
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#define ARM_PSCI_1_0_FN_NODE_HW_STATE ARM_PSCI_0_2_FN(13)
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#define ARM_PSCI_1_0_FN_SYSTEM_SUSPEND ARM_PSCI_0_2_FN(14)
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#define ARM_PSCI_1_0_FN_SET_SUSPEND_MODE ARM_PSCI_0_2_FN(15)
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#define ARM_PSCI_1_0_FN_STAT_RESIDENCY ARM_PSCI_0_2_FN(16)
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#define ARM_PSCI_1_0_FN_STAT_COUNT ARM_PSCI_0_2_FN(17)
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#define ARM_PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND ARM_PSCI_0_2_FN64(12)
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#define ARM_PSCI_1_0_FN64_NODE_HW_STATE ARM_PSCI_0_2_FN64(13)
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#define ARM_PSCI_1_0_FN64_SYSTEM_SUSPEND ARM_PSCI_0_2_FN64(14)
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#define ARM_PSCI_1_0_FN64_STAT_RESIDENCY ARM_PSCI_0_2_FN64(16)
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#define ARM_PSCI_1_0_FN64_STAT_COUNT ARM_PSCI_0_2_FN64(17)
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/* 1KB stack per core */
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#define ARM_PSCI_STACK_SHIFT 10
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#define ARM_PSCI_STACK_SIZE (1 << ARM_PSCI_STACK_SHIFT)
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/* PSCI affinity level state returned by AFFINITY_INFO */
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#define PSCI_AFFINITY_LEVEL_ON 0
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#define PSCI_AFFINITY_LEVEL_OFF 1
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#define PSCI_AFFINITY_LEVEL_ON_PENDING 2
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#ifndef __ASSEMBLY__
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#include <asm/types.h>
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/* These 3 helper functions assume cpu < CONFIG_ARMV7_PSCI_NR_CPUS */
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u32 psci_get_target_pc(int cpu);
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u32 psci_get_context_id(int cpu);
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void psci_save(int cpu, u32 pc, u32 context_id);
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void psci_cpu_entry(void);
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u32 psci_get_cpu_id(void);
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void psci_cpu_off_common(void);
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int psci_update_dt(void *fdt);
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void psci_board_init(void);
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int fdt_psci(void *fdt);
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void psci_v7_flush_dcache_all(void);
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#endif /* ! __ASSEMBLY__ */
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#endif /* __ARM_PSCI_H__ */
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