step N of N: get rid of baggage by removing whole files. What's left is in
approximately the same shape as when the FDT update started, that is mostly
broken. What's missing is most of the 76 devices recognized in the dtd. In
other words, This is barely the start of a port.
Next up, gpio then i2c, followed either by straightening out usb or getting
the sdhc driver to work -- both probably require getting the interrupt
combiner to work first. A large chunk of work is left to do on the clocks.
I barely got them attaching to fdt and didn't do anything to take advantage
of the information in the dtd.
None of the other existing drivers, such as they are, properly request gpios,
i2c or clocks, and, of course power domains are off the table.
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