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SUNXI(4) Device Drivers Manual (armv7) SUNXI(4)

sunxi
Allwinner Technology A1X/A20 SoCs device bus

sunxi0 at mainbus?

The sunxi interface serves as an abstraction used by the autoconfiguration system to help find and attach devices integrated in Allwinner Technology SoC processors.
sunxi provides support for the following devices:
sxiccmu(4)
A1X/A20 clock control module device
sxipio(4)
A1X/A20 GPIO controller
sxitimer(4)
A1X/A20 timer device

intro(4), mainbus(4)

The sunxi driver first appeared in OpenBSD 5.5.
August 6, 2016 OpenBSD-current