[Verse 1] When bootloader whispers secrets to the kernel's ear Device tree blob arrives, compressed and unclear Unflatten algorithm springs to life with care Transforms the binary forest into structures we can share Each property gets parsed, each node finds its place Memory allocations build the hardware interface [Chorus] Unflatten, populate, iterate through Device tree nodes come alive for you Properties and children, all connected true Kernel maps the hardware, makes the system new Unflatten, populate, that's the way we do Device tree processing, kernel's breakthrough [Verse 2] Starting from the root, the parser walks the chain Compatible strings tell us what each device contains Addresses get translated, ranges get defined Interrupt controllers link the hardware designs Platform devices spawn from every parsed entry Driver matching follows, binding's elementary [Chorus] Unflatten, populate, iterate through Device tree nodes come alive for you Properties and children, all connected true Kernel maps the hardware, makes the system new Unflatten, populate, that's the way we do Device tree processing, kernel's breakthrough [Bridge] Phandles point to other nodes across the tree References resolved through kernel's memory Status properties filter what gets activated Overlays can modify what's been created Runtime modifications through sysfs calls Dynamic device management when hardware falls [Verse 3] Memory gets organized in device node structs Property lists contain the hardware constructs Kobjects represent each device we've found Sysfs exposes everything that's been unbound From flattened blob to living system state The kernel orchestrates hardware's fate [Chorus] Unflatten, populate, iterate through Device tree nodes come alive for you Properties and children, all connected true Kernel maps the hardware, makes the system new Unflatten, populate, that's the way we do Device tree processing, kernel's breakthrough [Outro] Boot sequence complete, devices recognized Hardware abstraction perfectly organized The tree lives on in kernel's memory space Device tree processing sets the system's pace
← Bootloader and Device Tree Loading | Driver Matching and Platform Devices →