diff --git a/src/soc/amd/picasso/acpi.c b/src/soc/amd/picasso/acpi.c
index 48b56f584f..125aa0aa65 100644
--- a/src/soc/amd/picasso/acpi.c
+++ b/src/soc/amd/picasso/acpi.c
@@ -100,8 +100,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 			ACPI_FADT_REMOTE_POWER_ON;
 	fadt->flags |= cfg->fadt_flags; /* additional board-specific flags */
 
-	fadt->ARM_boot_arch = 0;	/* Must be zero if ACPI Revision <= 5.0 */
-
 	fadt->x_firmware_ctl_l = 0;	/* set to 0 if firmware_ctrl is used */
 	fadt->x_firmware_ctl_h = 0;
 }
diff --git a/src/soc/amd/stoneyridge/acpi.c b/src/soc/amd/stoneyridge/acpi.c
index be9349d096..40976af654 100644
--- a/src/soc/amd/stoneyridge/acpi.c
+++ b/src/soc/amd/stoneyridge/acpi.c
@@ -91,8 +91,6 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 				ACPI_FADT_S4_RTC_VALID |
 				ACPI_FADT_REMOTE_POWER_ON;
 
-	fadt->ARM_boot_arch = 0;	/* Must be zero if ACPI Revision <= 5.0 */
-
 	fadt->x_firmware_ctl_l = 0;	/* set to 0 if firmware_ctrl is used */
 	fadt->x_firmware_ctl_h = 0;
 }