JH wrote...
I added NAND and UBIFS support to my Yocto layer machine config file:
UBOOT_CONFIG = "nand" UBOOT_CONFIG[nand] += "mx6ull_14x14_evk_config" UBOOT_CONFIG[nand] += "mx6ull_14x14_evk_nand_config" UBOOT_CONFIG[nand] += "ubi" UBOOT_CONFIG[nand] += "ubifs"
But my u-boot.imx-nand still could not support ubi:
=> ubi part rootfs Unknown command 'ubi' - try ‘help’
You need to start to read through the various sources to figure out for yourself what is going on!
Starting from the bottom, in U-Boot 2017.03 all of the command sources are in the “cmd” directory. The “ubi …” command are all in ubi.c. Reading cmd/Makefile shows that file gets added into the build if CONFIG_CMD_UBI is enabled.
The next place to look is whether or not that is set in your defconfig for U-Boot or overwritten somewhere in a recipe in your Yocto build environment.
-Andy.