1 files changed, 25 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/include/asm/acpi/cpu.asl b/roms/u-boot/arch/x86/include/asm/acpi/cpu.asl
new file mode 100644
index 000000000..b20b3572f
--- /dev/null
+++ b/roms/u-boot/arch/x86/include/asm/acpi/cpu.asl
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 Google LLC
+ */
+
+/* These come from the dynamically created CPU SSDT */
+External (\_PR.CNOT, MethodObj)
+
+/* Notify OS to re-read CPU tables */
+Method (PNOT)
+{
+	\_PR.CNOT (0x81)
+}
+
+/* Notify OS to re-read CPU _PPC limit */
+Method (PPCN)
+{
+	\_PR.CNOT (0x80)
+}
+
+/* Notify OS to re-read Throttle Limit tables */
+Method (TNOT)
+{
+	\_PR.CNOT (0x82)
+}