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+Directory hierarchy
+===================
+
+.. list-table::
+   :header-rows: 1
+
+   * - Directory path
+     - Usage
+   * - /arch
+     - Architecture-specific files
+   * - /arch/arc
+     - Files relating to ARC architecture
+   * - /arch/arm
+     - Files relating to ARM architecture
+   * - /arch/m68k
+     - Files relating to m68k architecture
+   * - /arch/microblaze
+     - Files relating to microblaze architecture
+   * - /arch/mips
+     - Files relating to MIPS architecture
+   * - /arch/nios2
+     - Files relating to Altera NIOS2 architecture
+   * - /arch/powerpc
+     - Files relating to PowerPC architecture
+   * - /arch/riscv
+     - Files relating to RISC-V architecture
+   * - /arch/sandbox
+     - Files relating to HW-independent "sandbox"
+   * - /arch/sh
+     - Files relating to SH architecture
+   * - /arch/x86
+     - Files relating to x86 architecture
+   * - /arch/xtensa
+     - Files relating to Xtensa architecture
+   * - /api
+     - Machine/arch-independent API for external apps
+   * - /board
+     - Board-dependent files
+   * - /boot
+     - Support for images and booting
+   * - /cmd
+     - U-Boot commands functions
+   * - /common
+     - Misc architecture-independent functions
+   * - /configs
+     - Board default configuration files
+   * - /disk
+     - Code for disk drive partition handling
+   * - /doc
+     - Documentation (a mix of ReST and READMEs)
+   * - /drivers
+     - Device drivers
+   * - /dts
+     - Makefile for building internal U-Boot fdt.
+   * - /env
+     - Environment support
+   * - /examples
+     - Example code for standalone applications, etc.
+   * - /fs
+     - Filesystem code (cramfs, ext2, jffs2, etc.)
+   * - /include
+     - Header Files
+   * - /lib
+     - Library routines relating to all architectures
+   * - /Licenses
+     - Various license files
+   * - /net
+     - Networking code
+   * - /post
+     - Power On Self Test
+   * - /scripts
+     - Various build scripts and Makefiles
+   * - /test
+     - Various unit test files
+   * - /tools
+     - Tools to build and sign FIT images, etc.