We can now point at a single version of Spike (the "ibex_cosim"
branch, until we've managed to upstream things properly). And ditch
the OVPsim stuff: that's not going to be supported again any time
soon.
This should match what's going on a bit more accurately. The link to
OVPsim now points at the (free of cost) commercial tool: riscv-ovpsim
doesn't support the bitmanip specification that we're using at the
moment.
This commit amends some paths in the vendoring hjson file (and updates
config files to use things at the new paths). Finally it re-runs the
vendoring tool:
Update code from upstream repository
https://github.com/lowRISC/opentitan to revision
92e9242424c72c59008e267dd3779e2af5ec8e83
which just ends up with a load of file renames.
Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>
A few tweaks to fix broken links, make explanations more clear and
update the information to reflect the present (e.g. Spike master now
implements bit-manip, the seperate branch is gone).
Restructure the existing documentation to group the content by intended
audience. This produces four sections:
* An introduction section, relevant to "newcomers" to Ibex.
* An user guide, intended for hardware designers (integrators) and
software developers who want to integrate Ibex, and develop software
for it.
* A reference guide, which provides background information on the
design. This section is essential when working on Ibex, and also
documents our design decisions.
* A developer guide aimed at people modifying Ibex itself. It consists
mostly of process and tool documentation: how to run the verification
after a code change, how to use GitHub, etc.
This commit is large, but text is mostly unchanged. A couple of
introductions and tables of content were added, but no significant
changes to the text have been made. These will be done in follow-ups.
Signed-off-by: Philipp Wagner <phw@lowrisc.org>
