3 config ARMV8_MULTIENTRY
4 boolean "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.