commit a3774c1c3c28e4ed89a36383ca73970b809bae94
author Stefan Agner <stefan.agner@toradex.com> Wed Aug 16 11:00:54 2017 -0700
committer Stefano Babic <sbabic@denx.de> Wed Aug 23 10:41:58 2017 +0200
tree 70ac6a2501b2522fcbde3491d51fae4bd0e595ba
parent 2f005695df7b03d25a367f6bedc41c015088ee29

spl: add serial download protocol (SDP) support

Add USB serial download protocol support to SPL. If the SoC started
in recovery mode the SPL will immediately switch to SDP and wait for
further downloads/commands from the host side.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Łukasz Majewski <lukma@denx.de>

common/spl/Kconfig

diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 582b685..9446cd9 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -668,6 +668,12 @@
 
 endchoice
 
+config SPL_USB_SDP_SUPPORT
+	bool "Support SDP (Serial Download Protocol)"
+	help
+	  Enable Serial Download Protocol (SDP) device support in SPL. This
+	  allows to download images into memory and execute (jump to) them
+	  using the same protocol as implemented by the i.MX family's boot ROM.
 endif
 
 config SPL_WATCHDOG_SUPPORT