layout: Introduce get_default_layout()

Containing an included, full-flash-chip sized default region.
This allows us to query the default layout specifically, also
if an additional layout is attached to the flash context.

Change-Id: Ia343e9775ec5bdc3fea5cdb6b347298515996e34
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/33519
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Peter Marheine <pmarheine@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/layout.h b/layout.h
index c05d1e776..49c1a1371 100644
--- a/layout.h
+++ b/layout.h
@@ -58,8 +58,9 @@ struct layout_include_args {
 	struct layout_include_args *next;
 };
 
-struct flashrom_layout *get_global_layout(void);
 struct flashrom_flashctx;
+struct flashrom_layout *get_global_layout(void);
+const struct flashrom_layout *get_default_layout(const struct flashrom_flashctx *);
 const struct flashrom_layout *get_layout(const struct flashrom_flashctx *const flashctx);
 
 int get_region_range(struct flashrom_layout *const l, const char *name,