Date: Tue, 27 May 2003 21:06:50 -0500 From: "Aron J. Silverton" <ajs@labs.mot.com> To: "'Peter Grehan'" <grehan@freebsd.org> Cc: freebsd-ppc@freebsd.org Subject: RE: Porting to Compact PCI Message-ID: <4D87884B6A6D4E438A8592BCC9C85DCA079C3156@il02exm06.corp.mot.com> In-Reply-To: <3ED2A8C5.2E19EA11@freebsd.org>
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Comments inline. owner-freebsd-ppc@freebsd.org wrote: > Hi Aron, >=20 >> 1. Boot Linux using U-Boot on this board. >=20 > I suspect this will be an easy step. >=20 I hope so, but I've been reading the U-boot list and I have my doubts. >> 2. Try U-Boot and FreeBSD. =20 <snip> >=20 > The main issue with U-Boot is that it doesn't export a low-level > driver interface, which the loader really wants to see. The > alternative is to implement polled-mode drivers in loader, which is > really replicating what U-Boot already does, so I think the best path > is to extend U-Boot's "syscall" interface to allow access to it's > existing driver code. =20 >=20 I've heard that U-Boot is already supposed to have some support, albeit rudimentary, support for FreeBSD. Are you familiar with the extent of = this? <snip> > The PPC port is currently way too tied to OpenFirmware, but it's > always been known that this has to be split out.=20 >=20 > Another issue is JFFS2 support in FreeBSD, which is what U-Boot uses > for it's flash filesystem. This would probably involve ext2fs-like > copyright issues. =20 >=20 What is the copyright issue? I'm not familiar with this. >> Let me know what everybody thinks. >=20 > It's an excellent plan, and will help to realise the ultimate goal > of the PPC port which was embedded systems. It is very handy to have > a fast G4 Mac for native builds though :-) =20 >=20 I hope that we can help. Others should feel free to join us. We'll be cross compiling on our end as we have no Macs. > later, >=20 > Peter. > _______________________________________________ > freebsd-ppc@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-ppc To unsubscribe, > send any mail to "freebsd-ppc-unsubscribe@freebsd.org"=20
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