[U-Boot] [PATCH 1/3] Build: Implement sentinel to pass board options

[Marek Vasut <marek.vasut@gmail.com>]

With this implementation, the sentinel character in TARGET name is interpreted
as an option and expanded to CONFIG_MK_xxx.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 boards.cfg |    1 +
 mkconfig   |    7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/boards.cfg b/boards.cfg
index 62bcca8..96c8890 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -12,6 +12,7 @@
 #
 #	Lines starting with '#' are comments.
 #	Blank lines are ignored.
+#	Sentinel is used to specify board options.
 #
 # To keep the list sorted, use something like
 #
diff --git a/mkconfig b/mkconfig
index b661071..62d6bd6 100755
--- a/mkconfig
+++ b/mkconfig
@@ -43,7 +43,10 @@ done
 [ $# -lt 4 ] && exit 1
 [ $# -gt 6 ] && exit 1
 
-CONFIG_NAME="${1%_config}"
+# The sentinel is used to define board options
+TARGETS="`echo $1 | sed "s/^[^@]*@//" | sed 's:@: :g'` ${TARGETS}"
+
+CONFIG_NAME="`echo ${1%_config} | sed 's/@.*$//g'`"
 
 [ "${BOARD_NAME}" ] || BOARD_NAME="${CONFIG_NAME}"
 
@@ -52,7 +55,7 @@ cpu="$3"
 if [ "$4" = "-" ] ; then
 	board=${BOARD_NAME}
 else
-	board="$4"
+	board="`echo $1 | sed 's/@.*$//g'`"
 fi
 [ $# -gt 4 ] && [ "$5" != "-" ] && vendor="$5"
 [ $# -gt 5 ] && [ "$6" != "-" ] && soc="$6"
-- 
1.7.1