I am using i.MX 6solox on udoo board. On A9 i have linux running successfully. I want to program the M4 using u boot , there is no QSPI on the board. I am noob in Linux. I understand that the U-boot is made custom to hardware layout. In this case I wont be able to use the U-boot provided by the freescale?. Can anyone help me to start this?