Right now documentation on the flat device tree is pretty fragemented. The concepts are based on the IEEE-1275 spec of which a relatively small portion is actually relevant. Other device types and properties come from other 'binding' documents.
Here is a list of the documents I know about: 1275 spec: http://playground.sun.com/pub/1275/coredoc/1275-1994/1275.ps.gz PowerPC processor binding: http://playground.sun.com/1275/bindings/ppc/release/ppc-2_1.html booting-without-of.txt (kernel source code: Documentation/powerpc) -Describes the flat device tree as it is used in the Linux kernel. Device Trees Everywhere-- paper by David Gibson and Ben Herrenschmidt-- an overview of the concept http://ozlabs.org/~dgibson/home/papers/dtc-paper.pdf PCI Bus binding: http://playground.sun.com/1275/bindings/pci/pci2_1.pdf USB Bus binding: http://playground.sun.com/1275/bindings/usb/usb-1_0.ps CHRP Binding: http://playground.sun.com/1275/bindings/chrp/chrp1_8a.ps (I think some things we may use like interrupt controller device types came from here) 64-bit extension: http://playground.sun.com/1275/bindings/64bitx/12756d5.ps interrupt mappings (** very important **): http://playground.sun.com/1275/practice/imap/imap0_9d.html misc device types (network, RTC, sound, etc) http://playground.sun.com/1275/practice/devicex/dse1_0a.html Regards, Stuart Yoder PowerPC Software Architecture Freescale > -----Original Message----- > From: > [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] org] On Behalf Of Gary Schumacher > Sent: Friday, April 06, 2007 8:34 AM > To: [email protected] > Subject: Powerpc newbie help > > > > > I am in the process of upgrading a Linux kernel from 2.4,20 > to 2.6.20 on > a proprietary board that uses the PPC 750Fx (without Open > Firmware) and > am having the following problems: > > > 1. Is there more information on Device Trees so I can construct one > myself? I have been reading "Device trees everywhere" and > "booting-without-of". Also, there are a number of *.dts files in > /arch/powerpc/boot/dts that I have been looking at but more > examples/HowTo information would be helpful. > > 2. I have downloaded dtc-2006419.tar and was wondering if there is a > newer version or do I need patches for this and if so where would I > look? > > 3. Where do I find glr_parser which is required to build dtc? > > Thanks > > > _______________________________________________ > Linuxppc-embedded mailing list > [email protected] > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
