udev for HS2

[suppamax]

No description provided.

[MikeOpenHWGroup]

Thanks for this @suppamax. I need to fix a conflict rtl/vendor/pulp_platform_axi/src/axi_burst_splitter.sv before merging.

[davideschiavone]

@suppamax - thanks for your great input - can u pls add that you may need to reboot the system after doing that?
It would save people time (like my case)

[davideschiavone]

in addition, we may want to provide that file directly in the repo and tell the user to do:

sudo cp 60-hs2.rules /etc/udev/rules.d/
sudo udevadm control --reload

[aghonem]

@davideschiavone Where can i find this file ? cp 60-hs2.rules

[suppamax]

Hi @Ahmed1Zaky
I don't remember where I've found it, but there it is

# HS2
ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6014", MODE="664", GROUP="plugdev"

[aghonem]

Hi @suppamax,

Thanks for your reply! I solved this in the morning and below are the instructions that might help anyone!

To use HS2 Cable, It is necessary to add a udev rule to use the cable.

OpenOCD provides a file containing the rule we need. Copy it into /etc/udev/rules.d/

$ sudo cp <path to riscv-openocd>/build/share/openocd/contrib/60-openocd.rules /etc/udev/rules.d

The file is also available here: https://github.com/riscv/riscv-openocd/blob/riscv/contrib/60-openocd.rules
The particular entry about the HS2 cable is :

ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6014", MODE="660", GROUP="plugdev", TAG+="uaccess"

Then either reboot your system or reload the udev configuration with :

$ sudo udevadm control --reload

To check if the cable is recognized, run lsusb. There should be a line like this:

$ lsusb
Bus 005 Device 003: ID 0403:6014 Future Technology Devices International, Ltd FT232HSingle HS USB-UART/FIFO IC

I found it in the information here: https://gitlab.irit.fr/minotaur/MINOTAuR/-/blob/thales/README.md

[MikeOpenHWGroup]

Added a "Do Not Merge" label pending generation of a release tag (stay tuned).