xref: /openbmc/u-boot/arch/arm/cpu/armv8/Kconfig (revision 9ec4a67e)
1if ARM64
2
3config ARMV8_MULTIENTRY
4        bool "Enable multiple CPUs to enter into U-Boot"
5
6config ARMV8_SPIN_TABLE
7	bool "Support spin-table enable method"
8	depends on ARMV8_MULTIENTRY && OF_LIBFDT
9	help
10	  Say Y here to support "spin-table" enable method for booting Linux.
11
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
17
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.
23
24config PSCI_RESET
25	bool "Use PSCI for reset and shutdown"
26	default y
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
34	help
35	  Most armv8 systems have PSCI support enabled in EL3, either through
36	  ARM Trusted Firmware or other firmware.
37
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.
40
41	  Select Y here to make use of PSCI calls for system reset
42
43endif
44