I have a PI 4 (4GB)
I loaded and installed the arm64 eoan USB didn't work, ssh did
I set total_mem=1024 USB worked
I set total_mem=3072 USB failed
I set total_mem=1024 and loaded the linux image: wget https://people.canonical.com/~hwang4/rpiv2/arm64/linux-image-5.3.0-1008-raspi2_5.3.0-1008.9+newupdate_arm64.deb wget https://people.canonical.com/~hwang4/rpiv2/arm64/linux-modules-5.3.0-1008-raspi2_5.3.0-1008.9+newupdate_arm64.deb
sudo dpkg -i linux-modules-5.3.0-1008-raspi2_5.3.0-1008.9+newupdate_arm64.deb sudo dpkg -i linux-image-5.3.0-1008-raspi2_5.3.0-1008.9+newupdate_arm64.deb sudo reboot
USB Worked
I commented out the total_mem=3072 USB failed
I believe the following will help:
In the raspberry pi git (4.19.y) https://github.com/raspberrypi/linux/issues/3093
hitmoon commented on 12 Aug "I've created a trivial patch to add bounce buffers on ARM64 for pcie-bcrmstb. pcie-brcmstb-bounce64.patch.zip
I tried this patch, it works for me! All 4G memory is alive now, COOL !! :-) Thanks @yaroslavros !
This fixed my linux image for my home rolled 19.04 ubuntu so I hope it fixes yours
I have a PI 4 (4GB)
I loaded and installed the arm64 eoan
USB didn't work, ssh did
I set total_mem=1024
USB worked
I set total_mem=3072
USB failed
I set total_mem=1024 and loaded the linux image: /people. canonical. com/~hwang4/ rpiv2/arm64/ linux-image- 5.3.0-1008- raspi2_ 5.3.0-1008. 9+newupdate_ arm64.deb /people. canonical. com/~hwang4/ rpiv2/arm64/ linux-modules- 5.3.0-1008- raspi2_ 5.3.0-1008. 9+newupdate_ arm64.deb
wget https:/
wget https:/
sudo dpkg -i linux-modules- 5.3.0-1008- raspi2_ 5.3.0-1008. 9+newupdate_ arm64.deb 5.3.0-1008- raspi2_ 5.3.0-1008. 9+newupdate_ arm64.deb
sudo dpkg -i linux-image-
sudo reboot
USB Worked
I commented out the total_mem=3072
USB failed
I believe the following will help:
In the raspberry pi git (4.19.y) /github. com/raspberrypi /linux/ issues/ 3093
https:/
hitmoon commented on 12 Aug brcmstb- bounce64. patch.zip
"I've created a trivial patch to add bounce buffers on ARM64 for pcie-bcrmstb.
pcie-
I tried this patch, it works for me!
All 4G memory is alive now, COOL !! :-)
Thanks @yaroslavros !
This fixed my linux image for my home rolled 19.04 ubuntu so I hope it fixes yours