common: bootm: Document fake bootm sub-command
Fake option is enabled only when CONFIG_TRACE is
enabled in common/bootm.c:do_boot_states().
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 6723360..48199bf 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -185,6 +185,9 @@
"\tcmdline - OS specific command line processing/setup\n"
"\tbdt - OS specific bd_t processing\n"
"\tprep - OS specific prep before relocation or go\n"
+#if defined(CONFIG_TRACE)
+ "\tfake - OS specific fake start without go\n"
+#endif
"\tgo - start OS";
#endif