MPC8540 Interrupts and u-boot

Hi,

I'm starting to work with MPC8540 and u-boot.  I'm looking for interrupt related code for MPC8540 PIC(programmable interrupt controler).  All I can find in the u-boot source code is unimplement code and code for MCP8260.  Does anyone know where I can find such code?

Thanks in advance for all your help!
Chau

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