M. Warner Losh wrote: > In message: <4becee31.3060...@gmail.com> > Vladimir 'φ-coder/phcoder' Serbinenko <phco...@gmail.com> writes: > : Yes and No. multiboot2 describes some aspects of the host system > : hardware but I've never heard of device trees outside of IEEE1275 or > : xnu, where it's probably a historical leftover. > > It is far from a historical left-over. I meant the only xnu on i386. It receives a device tree from bootloader but on most platforms it's either empty or ignored > Linux critically depends on > the boot loader on PowerPC to provide it with a tree of devices that > it cannot otherwise probe. On other architectures, it is becoming an > optional way to specify the device tree as well. There are many > different implementations of this, since primarily it is just data and > boot loaders are good at providing binary blobs to the kernel... > Could we come up with a standard of passing this information in multiboot2? > In addition, Rafal Jawarski has ported this technology to FreeBSD. > He's presenting a paper on it today at BSDcan: > http://www.bsdcan.org/2010/schedule/events/171.en.html > I've reviewed the work, and it goes a long way towards making some of > the more stupid and repetitive parts of doing a port to a new embedded > architecture easy. > > Warner >
-- Regards Vladimir 'φ-coder/phcoder' Serbinenko
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