[ 源代码： u-boot ]
软件包：u-boot-rpi（2021.01+dfsg-5）
A boot loader for Raspberry PI systems
Das U-Boot is a cross-platform bootloader for embedded systems, used as the default boot loader by several board vendors. It is intended to be easy to port and to debug, and runs on many supported architectures, including PPC, ARM, MIPS, x86, m68k, NIOS, and Microblaze.
This package includes boot loaders for various Raspberry PI platforms.
Included platforms: rpi_3 rpi_4 rpi_arm64