Jeff Geerling

@elmeyer - Seems like a different issue. I replaced: ```patch diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c index bc133db2d538..3c34949222a6 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c @@ -689,7 +689,19 @@ static int psp_v11_0_memory_training(struct psp_context *psp,...

Just noting someone else who was working with `memcopy_fromio`/`toio` and experiencing hard crashes: https://stackoverflow.com/questions/28518336/how-do-i-use-memcpy-toio-fromio#comment45366546_28518336

Over on the Pi forums, got the following response from jdb: > "Firmware transaction timeout" usually means the VPU has crashed. > > From your linked issue on freedesktop.org, the...

First up, getting the thing to boot (either to eMMC flashing mode, or to boot normally) is... interesting. ## Booting with CM4 IO Board It looks like if you just...

## Flashing a new OS to the CM3 (Following [this guide](https://wiki.radxa.com/Rock3/CM3/raspcm4io)). 1. Download an image from the [rock-3-images-released repo](https://github.com/radxa/rock-3-images-released/releases). 2. Follow steps above for getting board into mass storage mode....

Right now, no matter what I do, this thing boots to this desktop after I see a 'RockChip kernel' splash screen for a couple seconds: 

@robtech21 - No clue, this was an earlier board that someone else was testing with, so it seems to be something kinda custom they were working on. I can't get...

FYI I'm also beginning to test the SOQuartz: https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/336

Testing this with a new set of instructions from Discord: 1. Plug in 12V barrel plug power. 2. Hold down the button next to the WiFi shield AND the button...

Still nothing—it is still booting to that Qt looking custom desktop, and USB still doesn't work. I tried [attaching to UART](https://www.jeffgeerling.com/blog/2021/attaching-raspberry-pis-serial-console-uart-debugging) through a USB-to-Serial adapter, and tried testing baud rates...