qoriq-base, imx-base: Allow DISTRO and local.conf override of IMAGE_FSTYPES

To allow the DISTRO and local.conf to override the IMAGE_FSTYPES value
we must provide a weak default (using the ??= operator) otherwise
machines need to play with the import order to override it.

Change-Id: I93407b8b6a93e5953bc4bae08f4ae4dafc5c6158
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

2 files changed, 2 insertions, 2 deletions

diff --git a/conf/machine/include/imx-base.inc b/conf/machine/include/imx-base.inc
index 29677f24..6e6233d2 100644
--- a/conf/machine/include/imx-base.inc
+++ b/conf/machine/include/imx-base.inc
@@ -189,7 +189,7 @@ SOC_DEFAULT_IMAGE_FSTYPES = "sdcard.gz"
 SOC_DEFAULT_IMAGE_FSTYPES_mxs = "uboot.mxsboot-sdcard sdcard.gz"
 
 SDCARD_ROOTFS ?= "${IMGDEPLOYDIR}/${IMAGE_NAME}.rootfs.ext4"
-IMAGE_FSTYPES ?= "${SOC_DEFAULT_IMAGE_FSTYPES}"
+IMAGE_FSTYPES ??= "${SOC_DEFAULT_IMAGE_FSTYPES}"
 
 SERIAL_CONSOLE = "115200 ttymxc0"
 SERIAL_CONSOLE_mxs = "115200 ttyAMA0"
diff --git a/conf/machine/include/qoriq-base.inc b/conf/machine/include/qoriq-base.inc
index 6c25d50e..426d5118 100644
--- a/conf/machine/include/qoriq-base.inc
+++ b/conf/machine/include/qoriq-base.inc
@@ -12,7 +12,7 @@ PREFERRED_VERSION_testfloat = "2a"
 IMAGE_CLASSES += "image_types_uboot"
 
 SOC_DEFAULT_IMAGE_FSTYPES = "tar.gz ext2.gz.u-boot ext2.gz"
-IMAGE_FSTYPES ?= "${SOC_DEFAULT_IMAGE_FSTYPES}"
+IMAGE_FSTYPES ??= "${SOC_DEFAULT_IMAGE_FSTYPES}"
 
 MACHINE_FEATURES ?= "pci ext2 ext3 serial"
 MACHINE_EXTRA_RRECOMMENDS += "udev-extraconf udev-rules-qoriq kernel-modules"