x86: acpi: Split out context creation from base tables
At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.
We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.
Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.
Signed-off-by: Simon Glass <sjg@chromium.org>
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