Khadas VIM1S/VIM4 support (Amlogic 5.4 vendor kernel)

Thank you – that makes sense.

I’ve added the modprobe config to our bsp-cli package.

Images for testing ( ) are here

>is testing with an “old” VIM4 model though, and running into panics. From what i can tell it’s related to “ISP” firmware, any ideas?

Yes, I know this issue, it is caused by the isp module load sequence, you can change the sequence to fix this issue, please check : https://github.com/khadas/fenix/blob/master/archives/filesystem/special/VIM4/etc/modprobe.d/isp.conf

all good with the “new” VIM4.

I’ve added a patch so we can check if the correct DTB is being loaded: https://github.com/armbian/build/blob/main/patch/kernel/archive/meson-s4t7-5.4/board_vim4_model_name_difference_between_kvim4_and_kvim4n.patch

is testing with an “old” VIM4 model though, and running into panics. From what i can tell it’s related to “ISP” firmware, any ideas?

Attached complete UART bootlog. Notice how the DTB is correctly picked up, and I’m using the exact same cmdline as the Fenix images.

Same build/image works 100% with the VIM4N.

Public PR is sent, and is helping a lot there:

Bingo – turns out I have the “new” version, and I was forcing the use of the “old” DTB. (Both DTBs have the same “model” though, that fooled me when inspecting Khadas’s fenix image).

Seems like everything works with the correct DTB.

I’ll adapt our extlinux stuff to use dtb autodetected by uboot just like you do (FDTDIR, not FDT) so we can have a single image for both boards.

Thank you very much