[Verse 1] Picture a blueprint where hardware meets code Device trees map out each chip's secret abode Slash root begins the hierarchical maze Nodes nested deep in curly brace displays Properties hold the values we need Compatible strings make the drivers succeed [Chorus] Nodes and props, labels and refs Memory maps that the kernel protects Ampersand phandle points the way through Device tree syntax makes hardware come true Parse the source, compile to blob DTS to DTB does the job [Verse 2] Memory node declares the RAM we possess Base address plus size equals success CPU nodes with frequencies defined Clock domains and voltage intertwined Interrupts flow from parent to child GPIO banks keep the signals styled [Chorus] Nodes and props, labels and refs Memory maps that the kernel protects Ampersand phandle points the way through Device tree syntax makes hardware come true Parse the source, compile to blob DTS to DTB does the job [Bridge] Aliases shortcut the lengthy node names Include files prevent repetitive games Cells encode the neighboring device Reg properties locate each slice precise Status okay or disabled by choice Bootloader gives the hardware a voice [Verse 3] Pinctrl multiplexes the connector pins Clock-names bind where the timing begins DMA channels flow through numbered lanes Power domains control the voltage reigns Overlays patch without full replacement Device tree evolves with surgical placement [Chorus] Nodes and props, labels and refs Memory maps that the kernel protects Ampersand phandle points the way through Device tree syntax makes hardware come true Parse the source, compile to blob DTS to DTB does the job [Outro] From source to binary the story unfolds Hardware description in structured code Device trees bridge the silicon divide Making embedded systems unified
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