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[v2,27/28] arm: mach-bcm283x: Enable ARMV8_MULTIENTRY

Message ID 20240906072231.2531491-28-patrick.rudolph@9elements.com
State Changes Requested
Delegated to: Tom Rini
Headers show
Series Implement ACPI on aarch64 | expand

Commit Message

Patrick Rudolph Sept. 6, 2024, 7:22 a.m. UTC 
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 mbox series

Patch

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