5.5.3. Driver model and flattened device tree

• topic still quite volatile
  • changes to dts format still frequent
  • of_ (bus|driver|device) vs. standard (bus|driver|device)

Resources

• Documentation/powerpc/booting-without-of.txt
  • describes very detailed how Linux works with device trees.

• Embedded Power Architecture Platform Requirements (ePAPR)
  • contains more detailed information, see
    http://www.power.org/resources/downloads/Power_ePAPR_APPROVED_v1.0.pdf

• APIs and code
  • include/linux/of.h
  • include/linux/of_platform.h
  • include/linux/of_device.h
  • arch/powerpc/include/asm/prom.h
  • code is in drivers/of/, arch/powerpc/kernel/of_*
  • SOC glue code in arch/powerpc/sysdev/fsl_soc.c
  • drivers in drivers/

• dtc
  • merged into kernel but already old a4da2e3ec84cda635ac441efbe781a38d2ee41ee
  • better get it here: git://www.jdl.com/software/dtc

• questions to linuxppc-dev or irc #mklinux