Install Coral AI PCIe Edge TPU on Raspberry Pi 5

coral-ai-pcie-edge-tpu-raspberrypi-5-setup

#!/bin/bash

cd /

sudo apt update

echo "deb https://packages.cloud.google.com/apt coral-edgetpu-stable main" | sudo tee /etc/apt/sources.list.d/coral-edgetpu.list

curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -

sudo apt-get update


sudo apt-get install libedgetpu1-std

sudo apt install -y devscripts debhelper

sudo apt install dkms

sudo apt-get install dh-dkms

# Clone the Gasket driver repository
sudo git clone https://github.com/google/gasket-driver.git

# Change directory to the cloned repository
cd gasket-driver

# Build the Gasket driver package
sudo debuild -us -uc -tc -b

# Go back to the parent directory
cd ..

# Install the built Gasket driver package
sudo dpkg -i gasket-dkms_1.0-18_all.deb


sudo sh -c "echo 'SUBSYSTEM==\"apex\", MODE=\"0660\", GROUP=\"apex\"' >> /etc/udev/rules.d/65-apex.rules"

sudo groupadd apex

sudo adduser $USER apex


# Update the boot configuration for Raspberry Pi
echo "kernel=kernel8.img" | sudo tee -a /boot/firmware/config.txt

# Back up the Device Tree Blob (DTB) 
sudo cp /boot/firmware/bcm2712-rpi-5-b.dtb /boot/firmware/bcm2712-rpi-5-b.dtb.bak 

# Decompile the DTB into a DTS file 
sudo dtc -I dtb -O dts /boot/firmware/bcm2712-rpi-5-b.dtb -o ~/test.dts 

# Modify the Device Tree Source (DTS) 
sudo sed -i '/pcie@110000 {/,/};/{/msi-parent = <[^>]*>;/{s/msi-parent = <[^>]*>;/msi-parent = <0x67>;/}}' ~/test.dts

# Recompile the DTS back into a DTB 
sudo dtc -I dts -O dtb ~/test.dts -o ~/test.dtb 

# Replace the old DTB with the new one 
sudo mv ~/test.dtb /boot/firmware/bcm2712-rpi-5-b.dtb

sudo reboot now

@MappyMatty I've noticed the same issue after the kernel upgrade to 6.12.x. I have attempted the following:

• cloned the gasket repo
• changed the .llseek = no_llseek to .llseek = noop_llseek ( vide: https://github.com/lukaszraczylo/gasket-dkms )
• built and installed the package

But then kept getting Couldn't reinit interrupts: -524 all the time, so after few hours I decided to run the model interference on CPU until the solution is found 🤷‍♂️

Got same problem on latest raspberrypi os with latest kernel. But when i've downgraded the kernel to 6.6.74+rpt-rpi-v8 - got it working, thought have to reload apex driver and rescan bus.

I still have apex 0001.03.00.0: Couldn’t initialize interrupts: -524. I’m using a Pineboards HatDrive! AI with an NVMe drive as well as the Coral. Are others using this same board or other PCIe boards? Could this issue relate to the PCIe switch on the board? Struggling with this and close to giving up and exploring Hailo as an alternative…

I still have apex 0001.03.00.0: Couldn’t initialize interrupts: -524. I’m using a Pineboards HatDrive! AI with an NVMe drive as well as the Coral. Are others using this same board or other PCIe boards? Could this issue relate to the PCIe switch on the board? Struggling with this and close to giving up and exploring Hailo as an alternative…

Well, i was getting same messages (couldn't initialize interrupts: -28 without applying dtoverlay=pineboards-hat-ai and -524 when applied) on 6.12 kernel. But when downgraded kernel to 6.6.74+rpt-rpi-v8 - these errors gone. Only problem is that i have rmmod apex/remove pci-e device/rescan pci/load apex mod after boot to get coral working. I have 52pi PCIe hat M02.

I'm using a hat with two m2 slots from another brand but facing the same problem. Downgrading the kernel to a previous version worked just fine, I'll keep using it for now and never update if possible.

Thanks. Can you please clarify the kernel downgrade process to 6.6.74+rpt-rpi-v8? Sorry for noob question!
I think I use rpi-config _firmware code_ but I’m confused about how I determine that firmware code.

I had problems when downgrading using the sudo apt install --reinstall raspi-firmware given in the official docs Docs, so unfortunatly the easiest way for me was to reinstall the system using the Raspberry PI Imager (the installed version has the compatible kernel)

Thanks. Can you please clarify the kernel downgrade process to 6.6.74+rpt-rpi-v8? Sorry for noob question! I think I use rpi-config _firmware code_ but I’m confused about how I determine that firmware code.

I've did that first time, had nice answer from google ai. But not sure if can be repeated as is. First, you have to install specific version "apt install linux-image-6.6.51+rpt-rpi-v8 linux-image-6.6.51+rpt-rpi-2712". Then set newest kernel on hold - "dpkg --get-selections |grep linux-image" and then "echo 'linux-image-6.12.20+rpt-rpi-v8 hold' | dpkg --set-selections" for both newest kernels. Remove old kernel packages by "apt remove linux-image-6.12.20+rpt-rpi-v8 linux-image-6.12.20+rpt-rpi-2712". And force reinstall old kernel version to get everything updated - "apt install --force linux-image-6.6.51+rpt-rpi-v8 linux-image-6.6.51+rpt-rpi-2712".

Probably good idea to remove gasket-dkms package before doing all of this as it can affect the whole process and install it after.

Thanks @PedroViniciusMelo and @vasimv. When I create using Raspberry Pi Imager I get 6.12.20 presumably because the hosting RPi is on a later kernel version. I'll try the steps vasimv has outlined once I have some time and can backup my current setup.