[coreboot] Superiotool to devicetree.cb

[Peter Stuge]

Carl-Daniel Hailfinger wrote:
> The best way would be to move the dts feature from v3 to v2.

Maybe. Another possibility would be to simply change the current
syntax:

io at 0x60 = 0x3f0
irq at 0x70 = 6
dma at 0x74 = 2  # note dma not drq

I'm even tempted to not have the address in the mainboard spec. The
component driver should know where to program IO, IRQ and DMA.


> It is a lot easier to understand and it has way more expressiveness
> and can actually cover non-io and non-irq settings easily.

The latter argument could be a strong motivation for bringing dts
into v2. I know I liked it, but we'll start with getting Kconfig
right.


//Peter