diff --git a/include/dm/acpi.h b/include/dm/acpi.h
index 2f52950..f6e5479 100644
--- a/include/dm/acpi.h
+++ b/include/dm/acpi.h
@@ -297,6 +297,18 @@
  */
 int acpi_write_one(struct acpi_ctx *ctx, const struct acpi_writer *entry);
 
+/**
+ * acpi_setup_ctx() - Set up a new ACPI context
+ *
+ * This zeros the context and sets up the base and current pointers, ensuring
+ * that they are aligned. Then it writes the acpi_start and acpi_ctx values in
+ * global_data
+ *
+ * @ctx: ACPI context to set up
+ * @start: Start address for ACPI table
+ */
+void acpi_setup_ctx(struct acpi_ctx *ctx, ulong start);
+
 #endif /* __ACPI__ */
 
 #endif