I try it in 2-3 days, when i got more spare time.
Thank you Mara.
Before, I'm trying to compile mainline kernel with mainline u-boot, but no success. All i've got is "loading kernel....." and then all just hanging up or continuously rebooting or just say me that i use wrong HW ID.
I'm planned to use the mainline kernel with slackware miniroot.
So, I leave my trying for now