Domain

Bootloaders

Everything that runs before the operating system does. Kept separate from Linux on purpose — bootloader concepts (ROM code, SPL, U-Boot) apply even on boards that never run Linux at all.

Topics

• Fundamentals — boot stages, ROM code, SPL/TPLwritten
• U-Boot — environment, commands, booting Linuxwritten
• The Complete Boot Process — full sequence, environment config, debuggingwritten
• Device Tree — DTS, DTB, and DTBO overlayswritten

Planned

secure-boot barebox