spl: record boot_device into spl_image and call spl_perform_fixups

On some boards, we want to give the board/architecture-specific code a
chance to look at where the next image has been loaded from and
perform fixups before starting the next image.  This is of particular
importance, when we probe multiple devices for bootable payloads and
boot the first one found.

This change adds the following:
 - we record the boot_device used into the spl_image structure
 - we provide an extension-point for boards/architectures that can
   perform late fixups depending on a fully populated spl_image
   structure (i.e. we'll know the final boot_device and have info
   on the image type and operating system to be booted).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/spl.h b/include/spl.h
index 8454ea7ad4..86287874e1 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -29,6 +29,7 @@ struct spl_image_info {
 #if CONFIG_IS_ENABLED(LOAD_FIT)
 	void *fdt_addr;
 #endif
+	u32 boot_device;
 	u32 size;
 	u32 flags;
 	void *arg;
@@ -296,4 +297,10 @@ void spl_invoke_atf(struct spl_image_info *spl_image);
  * can implement 'board_return_to_bootrom'.
  */
 void board_return_to_bootrom(void);
+
+/**
+ * spl_perform_fixups() - arch/board-specific callback before processing
+ *                        the boot-payload
+ */
+void spl_perform_fixups(struct spl_image_info *spl_image);
 #endif