diff options
| author | James Morris <james.l.morris@oracle.com> | 2014-01-06 22:23:01 +1100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2014-01-06 22:23:01 +1100 |
| commit | 38fd2c202a3d82bc12430bce5789fa2c2a406f71 (patch) | |
| tree | a73513dbb015155f5236b391709b9083916b3136 /Documentation/ABI/testing/sysfs-driver-sunxi-sid | |
| parent | dcf4e392867bf98d50ad108ed7c2bfb941e8c33d (diff) | |
| parent | d6e0a2dd12f4067a5bcefb8bbd8ddbeff800afbc (diff) | |
Merge to v3.13-rc7 for prerequisite changes in the Xen code for TPM
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-sunxi-sid')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-sunxi-sid | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-sunxi-sid b/Documentation/ABI/testing/sysfs-driver-sunxi-sid new file mode 100644 index 00000000000..ffb9536f6ec --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-sunxi-sid @@ -0,0 +1,22 @@ +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. |