A number of people have tripped up on GHDL backend issues. We
require either the LLVM or gcc backend, because the mcode backend
can't link against libraries which we use for simulated memory
and UART. Make that clearer, and point people at the Docker images
if they are having issues building ghdl.
Also point at the prebuilt micropython image.
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
This replaces the simple_ram_behavioural and mw_soc_memory modules
with a common wishbone_bram_wrapper.vhdl that interfaces the
pipelined WB with a lower-level RAM module, along with an FPGA
and a sim variants of the latter.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Few tweaks based on a newcomers experience getting an Arty A7-100 up and running
Forgot to add DCO in initial PR, now corrected.
Signed-off-by: Hugh Blemings <hugh@blemings.org>
Anton Blanchard
Paul Mackerras
Michael Neuling