rmc: Extend usages of RMC_BOARD_DATA_DIRS to specify board data

Use the variable RMC_BOARD_DATA_DIRS, to disable, append to, or
override the default board data in meta-intel with boards' data
provided by users.

Ideally, users should get the updated database in the new built
image after an incremental build.

Examples of RMC database output (db):

RMC_BOARD_DATA_DIRS  = "" (disable db generation)
RMC_BOARD_DATA_DIRS_append = " top_dir" (db of defaults & user's)
RMC_BOARD_DATA_DIRS = "top_dir" (db for user's , no defaults)
RMC_BOARD_DATA_DIRS  = " " (same as "")

Signed-off-by: Jianxun Zhang <jianxun.zhang@linux.intel.com>
Signed-off-by: California Sullivan <california.l.sullivan@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/common/recipes-bsp/rmc/rmc-db.bb b/common/recipes-bsp/rmc/rmc-db.bb
index 14553af0..99565fdd 100644
--- a/common/recipes-bsp/rmc/rmc-db.bb
+++ b/common/recipes-bsp/rmc/rmc-db.bb
@@ -14,7 +14,7 @@ S = "${WORKDIR}"
 
 inherit rmc-db
 
-RMC_BOARD_DATA_DIRS_append := " ${THISDIR}/boards/"
+RMC_BOARD_DATA_DIRS ?= "${THISDIR}/boards/"
 RMC_DB_DIR = "${WORKDIR}/db"
 
 # Let sstate be aware of change in any added board directories
@@ -41,6 +41,7 @@ do_deploy () {
         if [ -f ${RMC_DB_DIR}/rmc.db ]; then
                 install -m 0400 ${RMC_DB_DIR}/rmc.db ${DEPLOYDIR}
         else
+                rm -f ${DEPLOYDIR}/rmc.db
                 echo "Warning: no RMC central database found, skip deployment."
         fi
 }