About the SW RESET

Hi Dialog,

From secondary_bootloader example, I notice that sw_reset() function is branch to address 0x20000000 and then running.
Why not to use the SYS_CTRL_REG(SW_RESET and REMAP_ADR0=SysRAM) to reset system?
What happened if I use SYS_CTRL_REG to do a SW reset?

Regards!