Gidday there, I have a board containing a Virtex-II Pro and a few other FPGAs. I have an OPB between the Virtex-II Pro and a Virtex-II which contains a UART, Interrupt controller and other peripherals.
I currently have linux booting just fine, and a single UART talking nicely to the primary interrupt controller on the Virtex-II OPB. I'm trying to modify the xilinx_pic.c code in arch/ppc/kernel as well as elements of arch/ppc/platforms/xilinx_ml300.[ch] and several files within arch/ppc/platforms/xilinx_ocp. I've been using ppc4xx_pic as an example, but I can't figure out where to register, or initialize the interrupt that goes from the second INTC to the first. When it's running all I see in /proc/interrupts is the interrupt for the serial port. I'm afraid I'm a little new to this level of the linux kernel, and definitely new to powerpc architecture. Can anyone give me any pointers to good examples of setting things up? It doesn't appear that anything uses irq_action which seems to be how things are done for a intel Pee Cee. I'll post whichever elements of code would be most useful. Thanks Joshua ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
