From: Choong YinThong <yin.thong.cho...@intel.com> Added default argument for ubi and ubifs image creation. MKUBIFS_ARGS and UBINIZE_ARGS both argument still able to edit in local.conf
[YOCTO #11589] Signed-off-by: Choong YinThong <yin.thong.cho...@intel.com> --- meta/classes/image_types.bbclass | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass index 7749b00..bbde08d 100644 --- a/meta/classes/image_types.bbclass +++ b/meta/classes/image_types.bbclass @@ -292,3 +292,12 @@ IMAGE_EXTENSION_live = "hddimg iso" # The IMAGE_TYPES_MASKED variable will be used to mask out from the IMAGE_FSTYPES, # images that will not be built at do_rootfs time: vmdk, vdi, qcow2, hdddirect, hddimg, iso, etc. IMAGE_TYPES_MASKED ?= "" + +# Default argument to create ubi and ubifs image with core-image-sato-sdk (http://www.linux-mtd.infradead.org/faq/ubifs.html) +# -m 2048: tells mkfs.ubifs that the minimum input/output unit size of the flash this UBIFS image is created for is 2048 bytes (NAND page in this case); +# -e 129024: logical eraseblock size of the UBI volume this image is created for; +# -c 8749: specifies maximum file-system size in logical eraseblocks; this means that it will be possible to use the resulting file-system on volumes up to this size (less or equivalent); so in this particular case, the resulting FS may be put on volumes up to about 251MiB (129024 multiplied by 2047); See this section for more details. +# -p 128KiB: tells ubinize that physical eraseblock size of the flash chip the UBI image is created for is 128KiB (128 * 1024 bytes); +# -s 512: tells ubinize that the flash supports sub-pages and sub-page size is 512 bytes; ubinize will take this into account and put the VID header to the same NAND page as the EC header. +MKUBIFS_ARGS ??= " -m 2048 -e 129024 -c 8749 " +UBINIZE_ARGS ??= " -p 128KiB -m 2048 -s 512 " -- 2.7.4 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
