rarias/nixos-riscv
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

WIP2

Browse Source
This commit is contained in:
Rodrigo Arias 2023-11-27 11:41:05 +01:00
parent b65cc31518
commit e59cf267a7
2 changed files with 5 additions and 129 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
README.md
View File

@ -1,43 +1,7 @@
# VisionFive-Nix
# NixOS on RISC-V
This repository contains primarily instructions for the VisionFive 1 board.
For now let's try to boot it in qemu.
For experimental support for VisionFive 2, see [visionfive2/README.md](visionfive2/README.md).
$ nix build .#nixosConfigurations.visionfive-cross.config.system.build.vm
# Flashing the Bootloader (VisionFive 1)
1. Do not apply power to the board
2. Attach the board via serial to your system, ensuring power is still not applied
3. Ensure the serial shows up in `/dev/ttyUSB*`, you can see this by running `dmesg` after plugging in the device
```
❯ dmesg
[200199.253566] usb 1-2: new full-speed USB device number 79 using xhci_hcd
[200199.386983] usb 1-2: New USB device found, idVendor=0403, idProduct=6001, bcdDevice= 6.00
[200199.386988] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[200199.386990] usb 1-2: Product: FT232R USB UART
[200199.386991] usb 1-2: Manufacturer: FTDI
[200199.386992] usb 1-2: SerialNumber: A50285BI
[200199.390344] ftdi_sio 1-2:1.0: FTDI USB Serial Device converter detected
[200199.390363] usb 1-2: Detected FT232RL
[200199.391207] usb 1-2: FTDI USB Serial Device converter now attached to ttyUSB0
^^^^^^^
^ This becomes /dev/ttyUSB0
```
4. `nix run github:matthewcroughan/visionfive-nix#flashBootloader /dev/ttyUSB0`
5. Wait to be told to apply power to the board this may take a while as U-Boot and OpenSBI are being cross-compiled.
```
Terminal ready
### Apply power to the VisionFive Board ###
```
Once power is applied, picocom will send the OpenSBI/U-Boot payload via XMODEM. You can then flash NixOS or any other distribution that follows the Distro Boot specification[^1] to an SD card and boot it.
###### Why do I need to flash the bootloader?
https://github.com/starfive-tech/u-boot/issues/30
The VisionFive ships with a version of OpenSBI/U-Boot that does not follow the distro-boot specification. NixOS and other distros would like to remain generic, without vendor specific details entering their system. This means booting NixOS requires flashing the bootloader as described above.
[^1]: https://source.denx.de/u-boot/u-boot/-/blob/v2022.04/doc/develop/distro.rst
That would cross-build a bootable RISC-V qemu VM from x86.

90
flake.nix
View File

@ -70,71 +70,6 @@
{
inherit (pkgs.pkgsCross.riscv64.linux) linuxPackages_visionfive;
};
apps.${system} = {
flashBootloader =
let
expectScript = pkgs.writeScript "expect-visionfive.sh" ''
#!${pkgs.expect}/bin/expect -f
set timeout -1
spawn ${pkgs.picocom}/bin/picocom [lindex $argv 0] -b 115200 -s "${pkgs.lrzsz}/bin/sz -X"
expect "Terminal ready"
send_user "\n### Apply power to the VisionFive Board ###\n"
expect "bootloader"
expect "DDR"
send "\r"
expect "0:update uboot"
expect "select the function:"
send "0\r"
expect "send file by xmodem"
expect "CC"
send "\x01\x13"
expect "*** file:"
send "${pkgs.pkgsCross.riscv64.firmware-visionfive}/opensbi_u-boot_visionfive.bin"
send "\r"
expect "Transfer complete"
'';
program = pkgs.writeShellScript "flash-visionfive.sh" ''
if $(groups | grep --quiet --word-regexp "dialout"); then
echo "User is in dialout group, flashing to board without sudo"
${expectScript} $1
else
echo "User is not in dialout group, flashing to board with sudo"
sudo ${expectScript} $1
fi
'';
in
{
type = "app";
program = "${program}";
};
flashOriginal =
let
flashScript = pkgs.writeScript "jh7100-recover-visionfive.sh" ''
set -x
${pkgs.lib.getExe self.packages.${system}.jh7100-recover} \
-D $1 \
-r ${jh7100_recovery_binary} \
-b ${jh7100_secondBoot} \
-d ${jh7100_ddrinit}
'';
program = pkgs.writeShellScript "flash-visionfive.sh" ''
if $(groups | grep --quiet --word-regexp "dialout"); then
echo "User is in dialout group, flashing to board without sudo"
${flashScript} $1
else
echo "User is not in dialout group, flashing to board with sudo"
sudo ${flashScript} $1
fi
'';
in
{
type = "app";
program = "${program}";
};
} // import ./visionfive2/commands.nix { inherit inputs pkgs; };
packages.${system} = {
jh7100-recover = pkgs.writeCBin "jh7100-recover" (builtins.readFile "${jh71xx-tools}/jh7100-recover.c");
};
images = {
visionfive-cross = self.nixosConfigurations.visionfive-cross.config.system.build.sdImage;
visionfive-native = self.nixosConfigurations.visionfive-native.config.system.build.sdImage;
@ -146,15 +81,7 @@
visionfive2-sd-image = importApply ./visionfive2/sd-image.nix { inherit inputs importApply; };
visionfive2-kernel = importApply ./visionfive2/kernel/nixos-module.nix { inherit inputs importApply; };
};
nixosConfigurations =
let
visionfive2-example-modules = [
./base.nix
./configuration.nix
self.nixosModules.visionfive2-sd-image
];
in
{
nixosConfigurations = {
visionfive-cross = nixpkgs.lib.nixosSystem {
system = "${system}";
modules = modules ++ [
@ -169,21 +96,6 @@
system = "riscv64-linux";
modules = modules;
};
visionfive2-cross = nixpkgs.lib.nixosSystem {
system = "${system}";
modules = visionfive2-example-modules ++ [
{
nixpkgs.crossSystem = {
system = "riscv64-linux";
};
}
];
};
visionfive2-native = nixpkgs.lib.nixosSystem {
system = "riscv64-linux";
modules = visionfive2-example-modules;
};
};
};
}