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arm: stm32mp1: add PSCI support

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Add PSCI v1.0 support for Linux and manage PSCI state
for each CPU (affinity 0 level) with all mandatory functions:
- PSCI_VERSION
- CPU_SUSPEND
- CPU_OFF
- CPU_ON
- AFFINITY_INFO
- SYSTEM_OFF
- SYSTEM_RESET
- PSCI_FEATURES
and 1 optional to avoid Linux warning
- MIGRATE_INFO_TYPE

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: CITOOLS <smet-aci-reviews@lists.codex.cro.st.com>
This commit is contained in:
Patrick Delaunay
2018-04-16 10:13:24 +02:00
committed by Tom Rini
parent 486daaa618
commit 41c79775f0
5 changed files with 191 additions and 0 deletions
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arch/arm/mach-stm32mp/include/mach/stm32.h
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@@ -73,6 +73,8 @@ enum boot_device {
/* TAMP registers */
#define TAMP_BACKUP_REGISTER(x) (STM32_TAMP_BASE + 0x100 + 4 * x)
#define TAMP_BACKUP_MAGIC_NUMBER TAMP_BACKUP_REGISTER(4)
#define TAMP_BACKUP_BRANCH_ADDRESS TAMP_BACKUP_REGISTER(5)
#define TAMP_BOOT_CONTEXT TAMP_BACKUP_REGISTER(20)
#define TAMP_BOOT_MODE_MASK GENMASK(15, 8)