1What: /sys/devices/*/<our-device>/nvmem 2Date: December 2017 3Contact: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> 4Description: read-only access to the efuse on the Ingenic JZ4780 SoC 5 The SoC has a one time programmable 8K efuse that is 6 split into segments. The driver supports read only. 7 The segments are 8 0x000 64 bit Random Number 9 0x008 128 bit Ingenic Chip ID 10 0x018 128 bit Customer ID 11 0x028 3520 bit Reserved 12 0x1E0 8 bit Protect Segment 13 0x1E1 2296 bit HDMI Key 14 0x300 2048 bit Security boot key 15Users: any user space application which wants to read the Chip 16 and Customer ID 17