pixdrift

I have updated zero3 branch in my fork so it's up to date and you should be able to build Zero 3 images from it for testing: https://github.com/pixdrift/armbian_build/tree/0f9820ff2238ab15fdbfef9adfefca47b031a757

Look at the path of the patch and you will understand why. In the PR I have patched both 6.1 and 6.6 kernel. In 6.1 kernel, there is no sun50i-h616-orangepi-zero.dtsi and hence changes were needed in sun50i-h616-orangepi-zero2.dts. However, as 6.6 kernel has sun50i-h616-orangepi-zero.dtsi, changes were done in the same.

This is great news. I made an attempt at this last night but unfortunately it didn't work as expected.. and I haven't had a chance to have a closer look yet. The configuration for mmc0 concerned me, so I would be keen to see your patch/changes to see what I may have wrong?

Reason I was slow to the wifi patches was I was provided some feedback by @wast3d55 that the expansion board USB ports weren't working on my latest build, so I have added configuration for these two additional ports and @wast3d55 has just provided confirmation that they are working correctly (thanks!). I will have an expansion board in the not too distant future so will add that to my testing in future

Updates for USB ports added in this commit:
https://github.com/pixdrift/armbian_build/blob/zero3/patch/kernel/archive/sunxi-6.6/patches.armbian/arm64-dts-sun50i-h618-orangepi-zero3-enable-HDMI-and-USB.patch

So the only thing pending now I think is to get wifi working. @Stephen Graf would you be able to link to your repo (private message is fine) or maybe try your patches against my latest zero 3 commit above and share them? once we can confirm they are working, I will merge them in.

I am happy to build a test image and share it for others on here to test too.

The comment in mmc0 is in the original dts from linux and has not caused any problems that I know of so far.

Both the wifi and HDMI work should be common to both the zero2 and zero3 and possibly the zero2w.  Would it be possible to work in an environment that supports both?

The sun4i-drm patch needs a lot of work before it can merge into Armbian and without it there will be no HDMI support. It conflicts with a lot of other patches. I am planning to work on it next week.
 
All thats needed is building an image for current and edge kernels, flash it on sdcard and boot on zero2. See if you are provided an option to connect to wifi and if you are able to connect to it.

Success!

Will post more details soon, but combining my u-boot mainline config, dts config and the work from @Gunjan Gupta it built a clean working image. Don't have time at the moment to get all the details posted, but here is the lsmod showing it using panfrost. It's built against 6.6.4, was having issues with the sun4i-drm on edge (6.6.7 now), will dig through that later.
 
root@orangepizero3:~# uname -a Linux orangepizero3 6.6.4-edge-sunxi64 #1 SMP Sun Dec 3 06:33:10 UTC 2023 aarch64 GNU/Linux root@orangepizero3:~# lsmod Module Size Used by rfkill 24576 1 sunrpc 290816 1 lz4hc 12288 0 lz4 12288 0 binfmt_misc 20480 1 zram 28672 3 sunxi_cedrus 49152 0 v4l2_mem2mem 28672 1 sunxi_cedrus videobuf2_dma_contig 20480 1 sunxi_cedrus videobuf2_memops 16384 1 videobuf2_dma_contig videobuf2_v4l2 20480 2 sunxi_cedrus,v4l2_mem2mem polyval_ce 12288 0 videodev 221184 3 sunxi_cedrus,videobuf2_v4l2,v4l2_mem2mem snd_soc_hdmi_codec 20480 0 apple_mfi_fastcharge 16384 0 videobuf2_common 45056 5 sunxi_cedrus,videobuf2_dma_contig,videobuf2_v4l2,v4l2_mem2mem,videobuf2_memops panfrost 69632 0 polyval_generic 12288 1 polyval_ce mc 57344 5 sunxi_cedrus,videodev,videobuf2_v4l2,videobuf2_common,v4l2_mem2mem gpu_sched 32768 1 panfrost drm_shmem_helper 16384 1 panfrost dump_reg 20480 0 fuse 126976 1 dm_mod 131072 0 hid_apple 24576 0 motorcomm 24576 1 dw_hdmi_cec 12288 0 dw_hdmi_i2s_audio 12288 0 dwmac_sun8i 24576 0 mdio_mux 12288 1 dwmac_sun8i display_connector 16384 0
Massive thanks @Gunjan Gupta, the sun4i patch was the missing piece.
 

Thanks @Gunjan Gupta I have forked your github zero2w repo and will add everything I have (patches/config) to get zero 3 working so it's based off your existing work with minimal changes... hoping we can then work to get both boards into the mainline Armbian

https://github.com/pixdrift/armbian_build/tree/zero3

I will post back here when I have all the changes tidied up, merged in, and building cleanly.