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arch/arm64: Hook up FADT 

Arm needs very little of FADT. Just a HW reduced model bit and low power
idle bit set.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I197975f91cd47e418c8583cb0e7b7ea2330363b2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76180
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2023-06-29 20:32:37 +02:00 committed by Lean Sheng Tan
parent 8473e8fd5f
commit ba2e354af4
2 changed files with 8 additions and 0 deletions
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1
src/arch/arm64/Makefile.inc
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@ -118,6 +118,7 @@ ramstage-y += memmove.S
ramstage-$(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE) += bl31.c
ramstage-y += transition.c transition_asm.S
ramstage-$(CONFIG_PAYLOAD_FIT_SUPPORT) += fit_payload.c
ramstage-$(CONFIG_HAVE_ACPI_SUPPORT) += acpi.c
rmodules_arm64-y += memset.S
rmodules_arm64-y += memcpy.S

7
src/arch/arm64/acpi.c Normal file
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@ -0,0 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi.h>
void arch_fill_fadt(acpi_fadt_t *fadt)
{
fadt->flags |= ACPI_FADT_HW_REDUCED_ACPI | ACPI_FADT_LOW_PWR_IDLE_S0;
}