On FDT platforms the APs are brought out of reset using the spin-table as defined in the DT. On ACPI enabled platforms there's no FDT, thus enable the ARMV8_MULTIENTRY to use the ACPI parking protocol instead.
TEST: - APs enter Linux when run on qemu-system-aarch64 -machine raspi4b - APs on real hardware do not enter Linux, but continue spinning in their ACPI parking protocol spinloop. To be investigated.
Signed-off-by: Patrick Rudolph patrick.rudolph@9elements.com Reviewed-by: Simon Glass sjg@chromium.org Cc: Matthias Brugger mbrugger@suse.com Cc: Peter Robinson pbrobinson@gmail.com Cc: Tom Rini trini@konsulko.com --- arch/arm/mach-bcm283x/Kconfig | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig index de783aa8f5..d2abeb778f 100644 --- a/arch/arm/mach-bcm283x/Kconfig +++ b/arch/arm/mach-bcm283x/Kconfig @@ -26,6 +26,7 @@ config BCM2837_64B depends on ARCH_BCM283X select BCM2837 select ARM64 + select ARMV8_MULTIENTRY if GENERATE_ACPI_TABLE
config BCM2711 bool "Broadcom BCM2711 SoC support" @@ -45,6 +46,7 @@ config BCM2711_64B depends on ARCH_BCM283X select BCM2711 select ARM64 + select ARMV8_MULTIENTRY if GENERATE_ACPI_TABLE
menu "Broadcom BCM283X family" depends on ARCH_BCM283X