Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-driver-sunxi-sid

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+What:          /sys/devices/*/<our-device>/eeprom
+Date:          August 2013
+Contact:       Oliver Schinagl <oliver@schinagl.nl>
+Description:   read-only access to the SID (Security-ID) on current
+               A-series SoC's from Allwinner. Currently supports A10, A10s, A13
+               and A20 CPU's. The earlier A1x series of SoCs exports 16 bytes,
+               whereas the newer A20 SoC exposes 512 bytes split into sections.
+               Besides the 16 bytes of SID, there's also an SJTAG area,
+               HDMI-HDCP key and some custom keys. Below a quick overview, for
+               details see the user manual:
+               0x000  128 bit root-key (sun[457]i)
+               0x010  128 bit boot-key (sun7i)
+               0x020   64 bit security-jtag-key (sun7i)
+               0x028   16 bit key configuration (sun7i)
+               0x02b   16 bit custom-vendor-key (sun7i)
+               0x02c  320 bit low general key (sun7i)
+               0x040   32 bit read-control access (sun7i)
+               0x064  224 bit low general key (sun7i)
+               0x080 2304 bit HDCP-key (sun7i)
+               0x1a0  768 bit high general key (sun7i)
+Users:         any user space application which wants to read the SID on
+               Allwinner's A-series of CPU's.