Switching Exception level EL3 to EL1

Dear all,

I am currently doing bsp development of NXP i.MX8M Mini( Arm Cortex A53). I was competed Enabled Quad core, now I want to trigger interrupt. The interrupt present in exception level 1 (EL1). There is an issue while I am switching EL3 to EL1. When I jump to el1 entry symbol it is going to hanging in synchronous exception handler(cxsynx). The problem may be when I saved Exception level 1 stack Pointer(EL1h) in SPSR_EL3 register. Where I did mistake in this scenario.kindly let know