desperex
-
Posts
10 -
Joined
-
Last visited
Reputation Activity
-
desperex reacted to TonyMac32 in Adding support for NanoPC -T6
Not so far, I stuck the tree for this board in mainline and it will be available with 6.6. I haven't messed with the USB3 yet, the collabora kernel is my secondary interest for this board, and, since I don't really get anything out of it, the board isn't my first priority either outside of personal interest.
I'll look at lowering the eMMC frequency, but some actual testing for errors will be needed to make sure 150 MHz is truly "good" and not just "tolerably bad" for the driver
-
desperex reacted to belveder79 in Adding support for NanoPC -T6
I actually have reported the similar problem with mine - works fine with SD, but does report lots of errors on EMMC.... seems that there is a problem in the config and is under investigation, but I bet your chip is OK...
-
desperex reacted to jstefanop in Orange Pi 4 PCIe Link Speed?
stock kernel works, issue is with orange pi 4 has badly designed FPC connector for PCIE lanes. They didn't group the diff pairs so transmission over FPC cable sucks. We had to make a flex ribbon board to correct this and route as diff pairs so Gen 2 2x works great. Might make some extra and release the board if there is enough interest.
-
desperex reacted to @lex in Camera(s) with Rock Pi 4 C
In order to use the imx219 sensor (or any other sensor) in mainline kernel 5.x you need to tell the sensor which format and size the sensor must deliver the frames using v4l2-ctl prior to grabbing the frames.
Something like:
v4l2-ctl --set-subdev-fmt pad=0,width=1280,height=960,code=0x3001 -d /dev/v4l-subdev1
v4l2-ctl --set-subdev-fmt pad=0,width=1280,height=960,code=0x3001 -d /dev/v4l-subdev0
v4l2-ctl --set-subdev-fmt pad=2,width=800,height=600,code=0x2008 -d /dev/v4l-subdev0
Collabora has a complete setup and a patched libcamera where you can pull some images from the sensor in mainline 5.x.
For this, you need an updated rkisp driver and imx219 device node in dts (if you don't have it yet!) and fresh compiled v4l2-ctl.
You can refer to:
https://gitlab.collabora.com/koike/linux/-/commit/7842ca07b75828785ffcd217362a82eaa9cc1e21
You can also refer to the work done here for further information:
https://github.com/initBasti/NanoPC-T4_armbian_configuration#testing-the-camera-