microwatt/scripts
Benjamin Herrenschmidt 982cf166dd litedram: Add basic support for LiteX LiteDRAM
This comes in two parts:

 - A generator script which uses LiteX to generate litedram cores
along with their init files for various boards (currently Arty and
Nexys-video). This comes with configs for arty and nexys_video.

 - A fusesoc "generator" which uses pre-generated litedram cores

The generation process is manual on purpose. This include pre-generated
cores for the two above boards.

This is done so that one doesn't have to install LiteX to build
microwatt. In addition, the generator script or wrapper vhdl tend to
break when LiteX changes significantly which happens.

This is still rather standalone and hasn't been plumbed into the SoC
or the FPGA toplevel files yet.

At this point LiteDRAM self-initializes using a built-in VexRiscv
"Minimum" core obtained from LiteX and included in this commit. There
is some plumbing to generate and cores that are initialized by Microwatt
directly but this isn't working yet and so isn't enabled yet.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
..
mw_debug litedram: Add basic support for LiteX LiteDRAM
bin2hex.py Move bin2hex.py to scripts/
dependencies.py Improve dependencies.py and add a --synth option
gen_icache_tb.py icache_tb: Improve test and include test file
run_test.sh Dump CTR, LR and CR on sim termination, and update our tests
run_test_console.sh Add test cases for new exceptions and supervisor state
test_micropython.py Update micropython
test_micropython_long.py Update micropython
verific.sh Fix verific script with new VHDL files
vhdltags Add VHDL TAGS