From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <397D98FA.35AEF244@francetelecom.fr> Date: Tue, 25 Jul 2000 15:41:14 +0200 From: FASSINO Jean-Philippe MIME-Version: 1.0 To: Benjamin Herrenschmidt CC: linuxppc-dev Subject: Re: RTAS on PowerMac Newworld References: <397D6A7A.CBF58A52@francetelecom.fr> <20000725131626.8292@mailhost.mipsys.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Benjamin Herrenschmidt wrote: > > > >Just a question about RTAS on PowerMac G4, > >does linux kernel can call RTAS function ? > >And if not, why ? > >I'm trying to do it and that fail... > > RTAS in not correctly implemented in those machines. Apple is apparently > abandonning it, the implementation in ROM for all core99 machines is > bogus. What do you want to use RTAS for ? In the kernel for PPC, a lot a code is here just to do what doing RTAS : pci config, via (CUDA and PMU) (no need if no ADB keyboard), ... When doing embedded systems, this drivers is very big and can be saving by using RTAS which i think is a very good thing in CHRP specification. It's strange that apple do not provide it fully. JP -- -------------------------------------------------------------------------- Jean-Philippe FASSINO France Telecom R&D : DTL/ASR Tel : 04 76 76 45 52 mailto:jeanphilippe.fassino@francetelecom.fr -------------------------------------------------------------------------- ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/