[U-Boot] Reset Function on P2020 PowerPC / MPC85XX

Hi all..

I'm porting the uC-OS to P2020/mpc85xx and then I'd like to create application that can reset the board. for the register set I'm looking at the u-boot source code, but I still can't reset the board.

please teach me the steps, which register to set first and then what register next...

thanks