sandbox: Generalise SPL booting

At present sandbox only supports jumping to a file, to get to the next
U-Boot phase. We want to support other methods, so update the code to
use an enum for the method. Also use the

Use board_boot_order() to set the order, so we can add more options.
Also add the MMC methods into the BOOT_DEVICE enum so that booting
from MMC can be supported.

Signed-off-by: Simon Glass <[email protected]>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/spl.h b/include/spl.h
index 09a12f815f6..c2c1f969a50 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -228,6 +228,15 @@ static inline const char *spl_phase_prefix(enum u_boot_phase phase)
 # define SPL_TPL_PROMPT	""
 #endif
 
+/**
+ * enum spl_sandbox_flags - flags for sandbox's use of spl_image_info->flags
+ *
+ * @SPL_SANDBOXF_ARG_IS_FNAME: arg is the filename to jump to (default)
+ */
+enum spl_sandbox_flags {
+	SPL_SANDBOXF_ARG_IS_FNAME = 0,
+};
+
 struct spl_image_info {
 	const char *name;
 	u8 os;