BootThunder

A lightweight U-Boot replacement based on the BitThunder operating system.

BootThunder utilises the full power of the bitthunder operating system to create a simple U-Boot like bootloader.

Features

• Simple environment variables.
• Multi-core support, boot operating systems on any core.
• Device Tree - Supports modifications to an FDT blob at runtime.
• ATAGs - Support for legacy ARM tags.
• Fully supports booting of the latest linux Kernels.
• FPGA / Programmable logic support.
• FAT filesystem.
• SD Card.

Supported Commands

• boot - A simple application boot command, just jumps to start of an image.
• bootm - A fully featured image boot, with device tree and machine id passing.
• load - Loads any binary data to a specified address.
• load_fpga - Loads an fpga device with a bitstream.

Planned Features

• Verified booting with CRC checking. (Like U-Boot's uImage).
• Netboot (convenient booting over TCP/IP with auto-discovery).
• Flash programming.
• Other filesystems (EXT2/4), JFFS etc.