>-- Original Message -- >Date: Tue, 23 Mar 2004 10:31:22 -0800 >From: Eugene Surovegin <ebs at ebshome.net> >To: Wolfgang Grandegger <wolfgang.grandegger at bluewin.ch> >Cc: linuxppc-embedded at lists.linuxppc.org >Subject: Re: IBM 440GX, Ocotea... > > > >On Tue, Mar 23, 2004 at 12:02:31PM +0100, Wolfgang Grandegger wrote: >> >> we are currently trying to understand which PPC Linux >> kernel tree is best suited for the IBM 440GX on the >> Ocotea eval board. We would like to support the 405GP >> and 440GP as well. > >linuxppc-2.4 > >> >> The Ocotea 440GX board seems to be supported in the >> "linuxppc_2_4_devel" tree. Is this board configuration >> up-to-date and still maintained? > >unlikely. linuxpp_2_4_devel is officialy "dead" tree :). > >> A more up-to-date implementation seems to be in the >> "linuxppc-2.4" tree. Are there some open issues or known >> problems? > >New UIC mode isn't supported yet. >Work on GigE support is still not finished yet. > >> I realized that the L2 cache has been disabled >> recently: >> >> $ cat arch/ppc/platforms/ocotea.c >> ... >> /* Disable L2-Cache due to hardware issues */ >> ibm440gx_l2c_disable(); >> >> Does this mean that the L2 cache is unusable on current >> revisions of the chip? [That's why we would like to use >> this chip.] > >Yes, we found problems with current chip revisions (A & B). >Ask your IBM contact for more information. > >> Does this tree support the 405GP and 440GP as well? > >Yes. > >> Could >> anybody make some comments on the stability? We currently >> use the "linuxppc_2_4_devel" tree for these processors >> with little problems. > >I'm using linuxppc-2.4 as of 2.4.21 in production for 440GP, >440GX, 405GPr, 405EP based hardware.
Great, thanks a lot for the clearification. Unfortunately there is some confusion and disappointment on what board is well supported in what tree. Wolfgang. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
