rk3399_android7.1关于secureboot操作说明
首先确保硬件上有贴efuse的相关部分电路，给efuse供电：
1 、RK312X 需要使用治具，EFUSE 需要单独供电才能烧录
2 、RK3288 PCBA 上已经有 EFUSE 已经有供电，烧录软件会自动控制，不需要单独供电
3 、批量烧录前先烧录一台机器，然后用量产工具升级完整固件，确认所有功能正常后再
开始批量烧录
注：我这里验证使用的rk3399的板子，这部分的电路需要贴上，才可以烧写efuse成功，否则会提示烧写efuse失败。
1、使用SecureBootTool.exe工具生成 RSA KEY(privateKey.bin和publicKey.bin文件)，这里rk3399使用的是SecureBootTool v1.85版本，每款机器只生成一次，因此要特别注意保存好，以后签名都只用这对 KEY，建议最好再备份一次，避免丢失，目前做法是保存在SDK代码device/rockchip/rk3399/中。
2、secure boot固件要求：固件要求 boot.img 和 和 recovery.img 都需要包含 kernel.img，即SDK自动编译脚本build.sh需要添加语句：./mkimage.sh ota，加在make otapackage -j4之后。
3、固件签名：使用SecureBootTool.exe工具进行固件签名，Load key加载1生成的 RSA KEY(privateKey.bin和publicKey.bin文件)，然后Sign Firmware加载要签名的固件update.img,签名成功会在out目录生成update_sign.img。
4、使用EfuseTool.exe工具【我这里的版本是efuse_v1.37，这个工具界面跟量产工厂工具的烧录工具有点像，注意不要搞错】烧录efuse到板子,加载的是2生成的签名固件update_sign.img，注意是在maskrom模式下烧录efuse（未烧录固件的新板子上电就是maskrom模式或者短接flash/emmc就会进maskrom模式），烧写成功则出现如下图所示，写入成功。对应log如下：
powerOn 81802
gCBW.Len = 100 gCBW.LBA = 0
gCBW.Len = 100 FW_DataLenCnt= 100
EfuseWriteData 0 100 3104240 0
write efuse: 0000000003104240 + 0x0:0x00,0x00,0x01,0x01,0x00,0x00,0x01,0x00,0x00,0x01,0x01,0x01,0x01,0x00,0x01,0x00,
write efuse: 0000000003104240 + 0x10:0x00,0x01,0x00,0x00,0x00,0x01,0x01,0x01,0x00,0x01,0x01,0x01,0x01,0x00,0x01,0x00,
write efuse: 0000000003104240 + 0x20:0x01,0x00,0x01,0x01,0x01,0x00,0x00,0x01,0x00,0x01,0x00,0x00,0x01,0x00,0x01,0x01,
write efuse: 0000000003104240 + 0x30:0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x01,0x01,0x00,0x00,0x00,0x00,0x01,0x00,
write efuse: 0000000003104240 + 0x40:0x00,0x00,0x00,0x01,0x00,0x01,0x01,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x01,0x01,
write efuse: 0000000003104240 + 0x50:0x01,0x01,0x00,0x01,0x01,0x00,0x00,0x01,0x00,0x01,0x01,0x00,0x00,0x01,0x00,0x01,
write efuse: 0000000003104240 + 0x60:0x00,0x01,0x01,0x00,0x01,0x00,0x00,0x01,0x01,0x00,0x00,0x00,0x01,0x00,0x01,0x01,
write efuse: 0000000003104240 + 0x70:0x00,0x01,0x00,0x01,0x00,0x01,0x01,0x00,0x00,0x01,0x01,0x00,0x01,0x00,0x00,0x01,
write efuse: 0000000003104240 + 0x80:0x00,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x01,0x00,0x01,0x01,0x00,0x00,0x01,0x00,
write efuse: 0000000003104240 + 0x90:0x01,0x00,0x01,0x00,0x00,0x00,0x01,0x01,0x00,0x00,0x00,0x01,0x00,0x01,0x01,0x00,
write efuse: 0000000003104240 + 0xa0:0x01,0x00,0x00,0x01,0x00,0x01,0x01,0x00,0x00,0x00,0x01,0x01,0x00,0x01,0x01,0x01,
write efuse: 0000000003104240 + 0xb0:0x00,0x00,0x00,0x01,0x00,0x00,0x01,0x01,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x00,
write efuse: 0000000003104240 + 0xc0:0x01,0x01,0x01,0x00,0x00,0x00,0x01,0x00,0x01,0x00,0x00,0x00,0x01,0x01,0x01,0x01,
write efuse: 0000000003104240 + 0xd0:0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
write efuse: 0000000003104240 + 0xe0:0x01,0x01,0x01,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x01,0x01,
write efuse: 0000000003104240 + 0xf0:0x00,0x01,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x01,0x00,0x00,
EfuseReadData 100 100 325dc2c 1
efuse1: 0000000003114b28 + 0x0:0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
efuse1: 0000000003114b28 + 0x40:0x089d35ac,0x720ee15f,0xec7c018d,0x2681f4d9,0x0c7e1cfb,0x2c5465a4,0x00000011,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
EfuseReadData 100 100 325dc2c 1
efuse1: 0000000003114b28 + 0x0:0x00000001,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x5ee25e4c,0x4308d29d,0xa69bc168,0x966ad196,0x68c54d0e,0x7cc8ec69,0xfe0ff147,0x21f2cfe7,
efuse1: 0000000003114b28 + 0x40:0x089d35ac,0x720ee15f,0xec7c018d,0x2681f4d9,0x0c7e1cfb,0x2c5465a4,0x00000011,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
enable secure
EfuseReadData 0 100 3100040 0
efuse1: 0000000003114b28 + 0x0:0x000000ff,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x5ee25e4c,0x4308d29d,0xa69bc168,0x966ad196,0x68c54d0e,0x7cc8ec69,0xfe0ff147,0x21f2cfe7,
efuse1: 0000000003114b28 + 0x40:0x089d35ac,0x720ee15f,0xec7c018d,0x2681f4d9,0x0c7e1cfb,0x2c5465a4,0x00000011,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
enable secure
EfuseReadData 0 100 3100040 0
efuse1: 0000000003114b28 + 0x0:0x000000ff,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x5ee25e4c,0x4308d29d,0xa69bc168,0x966ad196,0x68c54d0e,0x7cc8ec69,0xfe0ff147,0x21f2cfe7,
efuse1: 0000000003114b28 + 0x40:0x089d35ac,0x720ee15f,0xec7c018d,0x2681f4d9,0x0c7e1cfb,0x2c5465a4,0x00000011,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,0x00000000,
5、然后使用FactoryTool_v1.66工具，升级签名固件。
6、验证结果：
6.1使用串口工具(如SecureCRT)抓取log。有以下打印表示安全启动:
Secure Boot find rsa key in ram.
Secure Boot Mode: 0x1
SecureBootEn = 1, SecureBootLock = 1
6.2设备已编程eFuse将启用安全启动rom，无法从未签名的固件启动。
因此，尝试升级未签名固件或不匹配的密钥签名固件将会失败;
升级匹配的签名固件将引导成功。