IMX6ULL support UBIFS is possible?

[stevenyu]

Hi All,

We have found below DEFINEs in include/configs/m28evk.h.

We copy to include/configs/mx6ullevk.h, and bitbake -c compile -f u-boot-imx; bitbake core-image-base.

However, it does not been build into u-boot-imx6ull14x14evk.imx-sd. Do you know what things we missing?

We also found Makefile need to see these variable, so what is the formal procedure to make it into u-boot?

===m28evk.h===

#define CONFIG_CMD_UBI
#define CONFIG_CMD_UBIFS
#define CONFIG_CMD_MTDPARTS
#define CONFIG_RBTREE
#define CONFIG_LZO
#define CONFIG_MTD_DEVICE
#define CONFIG_MTD_PARTITIONS
#define MTDIDS_DEFAULT "nand0=gpmi-nand"
#define MTDPARTS_DEFAULT \
"mtdparts=gpmi-nand:" \
"3m(u-boot)," \
"512k(env1)," \
"512k(env2)," \
"14m(boot)," \
"238m(data)," \
"-@4096k(UBI)"

===Makefiles===

cmd/Makefile:128:obj-$(CONFIG_CMD_UBIFS) += ubifs.o
fs/Makefile:22:obj-$(CONFIG_CMD_UBIFS) += ubifs/

[jackou]

Hi,

I am trying to do similar thing now, on ls1021atwr board.  I try to read ubi partition from NOR.  

I can make the compile to work by putting those defines in include/configs/ls1021atwr.h, not the ls1021atwr_nor_defconfig.  I get those commands in uboot. 

But when I tried mtdparts, it complains : Device nor0 not found !

Any idea how to make ubi and mtdparts sees the NOR flash in board ?

Thanks !

Jack Ou. 

[stevenyu]

yes, i try to change CONFIG_CMD_UBIFS to y, and ubi command is built into u-boot. Any good method to avoid force change $(CONFIG_CMD_UBIFS) to y , and configuration file we can modify and variable changed to y automatically?

fs/Makefile:22:obj-$(CONFIG_CMD_UBIFS) += ubifs/

to 

fs/Makefile:22:obj-y += ubifs/

And the, we have similar issue as you. 

it complains : device nand not found!

[igorpadykov]

Hi Steven

seems it is not supported, one can try to port it using linux sources and

post it on uboot mail list

[U-Boot] u-boot UBI support 

Best regards
igor
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[stevenyu]

Hi igor,

OK, I see it looks difficult to make ubifs support. 

Do you know where should we put CONFIG_CMD_UBIFS, CONFIG_CMD_UBIFS and then let Makefile can try to make it ? 

Because we put these CONFIG_OOXX to git/configs/mx6ull_14x14_evk_nand_defconfig, but it seems Makefile/.c/.h still cannot see these variable !!

Regards,

Steven Yu

[igorpadykov]

Hi Steven

since it is not supported, so no there are no necessary dependencies

for these definitions. It is necessary to add them using for example i.mx28

Best regards
igor

[stevenyu]

We try to change $(CONFIG_CMD_UBIFS) to y, and ubi command is built into u-boot. Any good method to avoid force change $(CONFIG_CMD_UBIFS) to y ? Does it have configuration file for our modificataion, and then variable changed to y automatically?

fs/Makefile:22:obj-$(CONFIG_CMD_UBIFS) += ubifs/
to 
fs/Makefile:22:obj-y += ubifs/