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