1*4882a593SmuzhiyunOpen Firmware Flat Tree and usage. 2*4882a593Smuzhiyun---------------------------------- 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunAs part of the ongoing cleanup of the Linux PPC trees, the preferred 5*4882a593Smuzhiyunway to pass bootloader and board setup information is the open 6*4882a593Smuzhiyunfirmware flat tree. 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunPlease take a look at the following email discussion for some 9*4882a593Smuzhiyunbackground. 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun http://ozlabs.org/pipermail/linuxppc-dev/2005-August/019408.html 12*4882a593Smuzhiyun http://ozlabs.org/pipermail/linuxppc-dev/2005-August/019362.html 13*4882a593Smuzhiyun 14*4882a593SmuzhiyunThe generated tree is part static and part dynamic. 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunThere is a static part which is compiled in with DTC and a dynamic 17*4882a593Smuzhiyunpart which is programmatically appended. 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunYou'll need a fairly recent DTC tool, which is available by git at 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun rsync://ozlabs.org/dtc/dtc.git 22*4882a593Smuzhiyun 23*4882a593SmuzhiyunThe xxd binary dumper is needed too which I got from 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun ftp://ftp.uni-erlangen.de/pub/utilities/etc/xxd-1.10.tar.gz 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun 28*4882a593SmuzhiyunPantelis Antoniou, 13 Oct 2005 29