arch/x86/bootblock_normal: Update to use fewer registers

- Move initialization of entry to later in main.
- Make boot_mode an unsigned char - no need to use int.
- Remove unnecessary variable filenames.
- Only get and try to boot fallback once.

Change-Id: I823092c60dd8c2de0a36ec7fdbba3e68f6b7567a
Test: compiled.
Signed-off-by: Martin Roth <>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <>
Tested-by: Raptor Engineering Automated Test Stand <>
Reviewed-by: Stefan Reinauer <>
1 file changed