[Verse 1] When the system starts to wake from power-on reset Bootloader takes the stage, a crucial silhouette First it checks the hardware, validates what's there Then prepares the kernel with meticulous care [Chorus] DTB in memory, device tree binary Pass it to the kernel through register three Memory address pointing to the data structure Bootloader's handoff makes the system puncture [Verse 2] Device tree describes the hardware landscape clear Every peripheral and bus that the kernel holds dear Compiled from source code into binary form DTB placement follows the protocol norm [Chorus] DTB in memory, device tree binary Pass it to the kernel through register three Memory address pointing to the data structure Bootloader's handoff makes the system puncture [Bridge] Command line parameters flow through different ways ATAGS or device tree properties these days Memory map alignment on page boundaries clean Kernel unpacks the tree to build its machine [Verse 3] U-Boot loads the binary to a safe location Above the kernel image with proper separation Register passing convention follows ARM's decree R-two holds the magic, R-three holds the tree [Chorus] DTB in memory, device tree binary Pass it to the kernel through register three Memory address pointing to the data structure Bootloader's handoff makes the system puncture [Outro] From bootloader to kernel, the handshake complete Device tree discovered, the boot cycle's beat Hardware abstraction through this structured way Systems engineering at the break of day
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