Mapping DMA interrupts in the linux kernel?

PowerPC based system uses a Device Tree Blob (DTB) also referred as Device Tree Source (DTS) which is a database that represents the hardware components (Processor Configuration, Buses, Peripherals etc...) on a given board. Linux kernel during its bootup expects certain information on the hardware that it runs on. Hardware information is passed from DTB to kernel by the bootloader software (eg: u-boot) as per Open Firmware standard.

Once kernel get the hardware information, it will do all the software setup as a part of the kernel initilization routine.

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