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if ARM64
config ARMV8_MULTIENTRY
bool "Enable multiple CPUs to enter into U-Boot"
config ARMV8_SPIN_TABLE
bool "Support spin-table enable method"
depends on ARMV8_MULTIENTRY && OF_LIBFDT
help
Say Y here to support "spin-table" enable method for booting Linux.
To use this feature, you must do:
- Specify enable-method = "spin-table" in each CPU node in the
Device Tree you are using to boot the kernel
- Let secondary CPUs in U-Boot (in a board specific manner)
before the master CPU jumps to the kernel
U-Boot automatically does:
- Set "cpu-release-addr" property of each CPU node
(overwrites it if already exists).
- Reserve the code for the spin-table and the release address
via a /memreserve/ region in the Device Tree.
config PSCI_RESET
bool "Use PSCI for reset and shutdown"
default y
depends on !ARCH_EXYNOS7 && !ARCH_BCM283X && !TARGET_LS2080A_EMU && \
!TARGET_LS2080A_SIMU && !TARGET_LS2080AQDS && \
!TARGET_LS2080ARDB && !TARGET_LS1012AQDS && \
!TARGET_LS1012ARDB && !TARGET_LS1012AFRDM && \
!TARGET_LS1043ARDB && !TARGET_LS1043AQDS && \
!TARGET_LS1046ARDB && !TARGET_LS1046AQDS && \
!ARCH_UNIPHIER && !ARCH_SNAPDRAGON && !TARGET_S32V234EVB
help
Most armv8 systems have PSCI support enabled in EL3, either through
ARM Trusted Firmware or other firmware.
On these systems, we do not need to implement system reset manually,
but can instead rely on higher level firmware to deal with it.
Select Y here to make use of PSCI calls for system reset
endif
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