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, 5 insertions, 1 deletions

diff --git a/classes/rmc-boot.bbclass b/classes/rmc-boot.bbclass
index a1f2093f..37c3e30c 100644
--- a/classes/rmc-boot.bbclass
+++ b/classes/rmc-boot.bbclass
@@ -9,5 +9,9 @@ inherit ${RMC_BOOTLOADER}
 do_bootimg[depends] += "${MLPREFIX}rmc-db:do_deploy"
 
 efi_populate_append() {
-        install -m 0400 ${DEPLOY_DIR_IMAGE}/rmc.db ${DEST}/rmc.db
+        if [ -f ${DEPLOY_DIR_IMAGE}/rmc.db ]; then
+                install -m 0400 ${DEPLOY_DIR_IMAGE}/rmc.db ${DEST}/rmc.db
+        else
+                rm -f ${DEST}/rmc.db
+        fi
 }