深入研究全志SOC芯片EFUSE,并扩展xfel工具，实现efuse烧写。

[tripod9]

全志的SOC，只要不是太老旧的芯片，里面都集成了2048bit的EFUSE，但此熔丝位的很多细节，并没有相关描述文档，这导致大家很难在实际项目中应用此功能，而且也缺乏灵活的烧写工具，基于此问题，我花了点时间扩展了下XFEL工具。

现已支持如下芯片的efuse烧写：
1，D1 / D1s / F133
2，T113 / R528
3，V851/ V853

扩展的烧写命令：

usage:
    xfel extra efuse dump                     - Dump all of the efuse information
    xfel extra efuse read32 <offset>          - Read 32-bits value from efuse
    xfel extra efuse write32 <offset> <value> - Write 32-bits value to efuse
    xfel extra efuse write <offset> <file>    - Write file to efuse

Dump芯片EFUSE

xfel extra efuse dump
chipid:(0x0000 128-bits)
    93406000 0c004814 01426250 48671b4b 
brom-conf-try:(0x0010 32-bits)
    00000000 
thermal-sensor:(0x0014 64-bits)
    88fbc11a 01e9080f 
ft-zone:(0x001c 128-bits)
    898f1919 0f760f6c 3108126c 811a0a0e 
tvout:(0x002c 32-bits)
    0000028f 
tvout-gamma:(0x0030 64-bits)
    00000000 00000000 
oem-program:(0x0038 64-bits)
    00000000 00000000 
write-protect:(0x0040 32-bits)
    00000000 
read-protect:(0x0044 32-bits)
    00000000 
reserved1:(0x0048 64-bits)
    00000000 00000000 
huk:(0x0050 192-bits)
    00000000 00000000 00000000 00000000 00000000 00000000 
reserved2:(0x0068 64-bits)
    00000000 00000000 
rotpk:(0x0070 256-bits)
    00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
ssk:(0x0090 256-bits)
    00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 
rssk:(0x00b0 128-bits)
    00000000 00000000 00000000 00000000 
hdcp-hash:(0x00c0 128-bits)
    00000000 00000000 00000000 00000000 
nv1:(0x00d0 32-bits)
    00000000 
nv2:(0x00d4 32-bits)
    00000000 
reserved3:(0x00d8 96-bits)
    00000000 00000000 00000000 
oem-program-secure:(0x00e4 224-bits)
    00000000 00000000 00000000 00000000 00000000 00000000 00000000

完整讨论贴，见坑网
https://whycan.com/t_9947.html