1What:		/sys/devices/*/<our-device>/eeprom
2Date:		August 2013
3Contact:	Oliver Schinagl <oliver@schinagl.nl>
4Description:	read-only access to the SID (Security-ID) on current
5		A-series SoC's from Allwinner. Currently supports A10, A10s, A13
6		and A20 CPU's. The earlier A1x series of SoCs exports 16 bytes,
7		whereas the newer A20 SoC exposes 512 bytes split into sections.
8		Besides the 16 bytes of SID, there's also an SJTAG area,
9		HDMI-HDCP key and some custom keys. Below a quick overview, for
10		details see the user manual:
11		0x000  128 bit root-key (sun[457]i)
12		0x010  128 bit boot-key (sun7i)
13		0x020   64 bit security-jtag-key (sun7i)
14		0x028   16 bit key configuration (sun7i)
15		0x02b   16 bit custom-vendor-key (sun7i)
16		0x02c  320 bit low general key (sun7i)
17		0x040   32 bit read-control access (sun7i)
18		0x064  224 bit low general key (sun7i)
19		0x080 2304 bit HDCP-key (sun7i)
20		0x1a0  768 bit high general key (sun7i)
21Users:		any user space application which wants to read the SID on
22		Allwinner's A-series of CPU's.
23