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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/ABI/testing/sysfs-driver-sunxi-sid
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to '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.