This is the mail archive of the ecos-discuss@sourceware.cygnus.com mailing list for the eCos project. See the eCos home page for more information.
>>>>> "Fred" == Fred Fierling <fff@microplex.com> writes: Fred> I've gone through the on-line information but am still wondering Fred> if the PowerPC version of eCos includes support for the MPC860's Fred> cache and MMU. Can anyone save me from pouring through the code Fred> to determine if it does? >>>>> "Stuart" == Stuart Adams <sja@brightstareng.com> writes: [snip] Stuart> Also, the MMU needs to be enabled for the cache's to work and Stuart> I don't see code for that. It's going to be board dependent Stuart> anyway. Also, once you enable the cache there are additional Stuart> issues with dealing with the CPM to do I/O. Cache support will be available soon. However, as Stuart points out, it requires a minimal MMU setup which is board specific; we use a Cogent board for development, so that is what will be supported to start with. Customizing the MMU setup for other boards should be trivial though. The MMU setup is truly minimal, basically marking the IO memory area of the Cogent board as Cache Inhibited, so generic MMU support (memory protection, paging, etc.) is *not* supported yet. Thanks, Jesper