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This repository contains NixOS configurations for different RISC-V machines. This repository contains NixOS configurations for different RISC-V machines.
## QEMU ## Lagarto Ox on FPGA Alveo U55C
To boot the system in QEMU, first enter the development shell: To build the system and boot it on an FPGA of the MEEP cluster, you can run the
following:
``` ```
$ nix develop $ nix develop -L '.#lagarto-ox' --command fpga/run-remotely.sh fpgalogin1:ci
``` ```
Then run the boot script: To do it manually, you can first enter the development shell:
``` ```
$ ./boot.sh $ nix develop -L '.#lagarto-ox'
``` ```
To prevent the GC from erasing the system: Then upload the files to the target machine (fpgalogin1 by default):
```
$ nix build .#devShells.x86_64-linux.default --out-link result-env
```
## Lagarto Hun on FPGA Alveo U55C
First build required dependencies:
```
$ nix develop '.#lagarto-hun'
```
Then upload to destination:
``` ```
$ fpga/upload.sh $ fpga/upload.sh
``` ```
And then boot the system there: Then connect to the fpgalogin1 machine, allocate a FPGA node and load the
environment there:
``` ```
cucu$ ./boot.sh $ cd nixos
... $ . env.sh
``` ```
In the U-Boot prompt, paste the commands of the `uboot.env` file. Flash the images to the FPGA:
```
$ ./fpgactl -w bitstream.bit -b opensbi.bin -k kernel.bin -i initrd.bin -r rootfs.img
```
And monitor the serial line:
```
$ picocom -q -b 115200 $FPGACTL_UART
```
It should boot without any user interaction.
## Lagarto Hun
WIP