Bus framework

[Richard Zhao]

Hi Amit,

Is there anyone working on a SoC bus framework?
The bus framework can manage the bus fabric, ddr, OCRAM clocks. When a
device driver become working, it tells bus framework, cpu may access
me (ip bus and related bus fabric on), I'm also a bus master, may
access ddr (ddr dma access +1 ). For bus framework, if ddr dma access
request is zero, ddr clk can be disabled in WFI/wait mode. The bus
framework manage the SoC bus topology.  If a bus switch use count is
zero, it can be disabled. It may even adjust the bus freq dynamically
according to bus request.

Thanks
Richard