It is a shame that after all these years, this problem is not fixed and people keep wasting time on it.
On Sat, Oct 25, 2014 at 8:32 AM, Wojciech Lewandowski < [email protected]> wrote: > Dear all, > I finally run Linux on OR 1200 in rtl simulator and custom own fpga board. > There are few problems: > 1. As You pointed some registers were not initialized so there are some X > signals, and this was a main problem. > 2. When I did correct initialization I noticed that I also made a mistake > when changing ram memory model > Thanks for your help > > jurand > 03-10-2014 16:50, "Matthew Hicks" <[email protected]> napisał(a): > >> You still haven't answered what kind of simulation you are trying to >>> perform, is it an event-driven (icarus, modelsim etc) or >>> cycle-accurate (verilator) rtl simulation you are doing? >>> If it's an event-driven simulation, there are a couple of things you >>> need to take care of before you boot the kernel to ensure that no >>> signals contain 'X's. >>> For instance, set r3 to a known value. >>> >> >> Note that it is software's (the processor specific stuff provided by the >> or1k community) responsibility to ensure that registers and on-chip buffers >> are initialized to 0 (see >> http://lists.openrisc.net/pipermail/openrisc/2011-December/000553.html >> and >> http://lists.openrisc.net/pipermail/openrisc/2011-December/000560.html). >> >> >>
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