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🎏技术驱动源于热爱，祝各位学有所成。
文章目录
- uboot的分支是next-dev历史版本v2017-09
- uboot支持DM框架
- uboot前级pre-loader支持及引导下级
- uboot分区支持
- uboot支持固件格式
- secure boot
- uboot编译脚本位置
- build.sh
- uboot/make.sh
- rkbin仓库
uboot的分支是next-dev历史版本v2017-09
uboot支持DM框架
DM 框架是 U-Boot 里现在所有驱动的框架模型统称，它主要包括 uclass、driver、device。U-Boot 的 doc
目录里可以找到官方详细的说明文档：
Uclass - a group of devices which operate in the same way.
A uclass provides a way of accessing individual devices within the group, but always using the same
interface. For example a GPIO uclass provides operations for get/set value. An I2C uclass may have 10
I2C ports, 4 with one driver, and 6 with another.
Driver - some code w