freebsd-skq/share/man/man4/aw_sid.4
Kyle Evans 92e80162f3 aw_sid(4): Add support for Allwinner H3
The sid controller on the H3 is generally identical in location, size, and
efuse offset to the a64 and the a83t. The main difference is that the H3 has
a silicon bug that sometimes causes the rootkey (at least) to be garbled
unless first read by the prctl registers.

This device is currently not in our DTS and, as of now, is not yet present
in mainline Linux DTS.

Tested on:	OrangePi One
2018-01-07 04:59:28 +00:00

77 lines
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Groff

.\"-
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.Dd January 6, 2018
.Dt AW_SID 4
.Os
.Sh NAME
.Nm aw_sid
.Nd driver for the SID controller in Allwinner SoC
.Sh DESCRIPTION
The
.Nm
device driver provides support for the Allwinner SID (Security ID) controller.
This controller provides root security keys that may be used as either a device
unique ID or to generate a MAC address.
.Sh HARDWARE
The
.Nm
driver supports the SID controller with one of the following compatible
strings:
.Pp
.Bl -bullet -compact
.It
allwinner,sun4i-a10-sid
.It
allwinner,sun7i-a20-sid
.It
allwinner,sun50i-a64-sid
.It
allwinner,sun8i-a83t-sid
.It
allwinner,sun8i-h3-sid
.El
.Sh SYSCTL VARIABLES
The following read-only variables are available via
.Xr sysctl 8 :
.Bl -tag -width indent
.It Va dev.aw_sid.rootkey
Root security key for this device.
.El
.Sh HISTORY
The
.Nm
device driver first appeared in
.Fx 11.0 .
.Sh AUTHORS
The
.Nm
device driver was written by
.An Jared McNeill Aq Mt jmcneill@invisible.ca .
This manual page was written by
.An Kyle Evans Aq Mt kevans@FreeBSD.org .