On Mon, 2010-04-19 at 13:58 +0200, Drasko DRASKOVIC wrote: > Hi Bahadir, > I am also very interested in porting Codezero to OR1200 (OpenRisc 1k > implementation). > > For the very begining config has to be generated for or32-elf-gcc to > be taken as a compiler, and necessary startup (bare metal) has to be > re-written in OR1k assembly. > > OR1ksim will be used for simulation instead of qemu. > > I will be happy to see only this compiles and giving first signs of > life, befor even thinking about OS concepts of memory mapping etc (I > am still learning L4 specifics). > > BR, > Drasko
Dear Bahadir, dear Drasko, Ravi Pujari works together with me. Let me please add some additional remarks about what we are working in, because the overall project might be of interest for you. I am working in an interdisciplinary project where hardware and programming models are jointly optimized. Our target architecture is a tiled NoC-based architecture, similar to what you can find in many projects or in Intels Rock Creek. We finally target an FPGA demonstrator (where we will use a Virtex LX330T) and want to re-use a lot of stuff from Open Source projects and also commit our own stuff. So far regarding the project. Since my task is the enhancement of the platform with specific hardware elements, a runtime system in the form of Linux etc. is not very promising, since it will eat most of the gains with complexity. Hence, we spent some brainstorming in simple microkernels, where initially a very simple message passing runtime system made by our own was in the focus. But recently, we found that Codezero is a lean and well-shaped microkernel project, that is well documented and in a state where we can port it with a reasonable amount of effort. The first steps will involve getting basic stuff running, such as context switches etc. Virtual memory management is moved to later stages. If anybody is interested in participating in the port, I think this may be interesting for both sides, the kernel nerds and the hardware geeks. Please contact Ravi and me if you want some fine-grained information on the status in the future, so that we will not trash this list.. Bye, Stefan -- Dipl.-Ing. Stefan Wallentowitz _/ _/_/_/ _/_/_/ Institute for Integrated Systems (LIS) _/ _/ _/ Technische Universität München _/ _/ _/_/ D-80290 München _/ _/ _/ fon +49 89 289 22963 _/_/_/_/ _/_/_/ _/_/_/ stefan.wallentow...@tum.de http://www.lis.ei.tum.de
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