Re: [yocto] Chance of success building "wrynose" core-image-minimal for Orange Pi 5 Pro?

Hi Robert,

On 4/27/26 5:06 PM, Robert P. J. Day via lists.yoctoproject.org wrote:
> On Mon, 27 Apr 2026, Robert P. J. Day wrote:
> 
>>
>>    Even though wrynose is not officially out, a colleague handed me an
>> Orange Pi 5 Pro ("Orange Pi 5 Pro 16GB LPDDR5 Rockchip RK3588S") and
>> asked me to see if I could configure and build a simple image using
>> layers that were as close to imminent wrynose as possible, so while
>> I've just started a build in another window, can I impose to see if
>> anyone can spot any flaws in what I'm doing, or perhaps say that just
>> isn't going to work?
>>
>>    First, the repos I'm using:
>>
>>    - bitbake: branch "2.18"
>>    - openembedded-core: branch "wrynose"
>>    - meta-rockchip: branch "wrynose"
>>    - meta-arm: branch "master" (no wrynose branch)
>>
>> Relevant part of local.conf (as I don't see a machine file for the
>> Pro, I'm using the one for the Plus):
>>
>>    MACHINE = "orangepi-5-plus"
>>    DISTRO = "nodistro"
>>
>> That's pretty much it -- all the fetching succeeded and my laptop is
>> chugging away building "virtual/kernel" before I move on to building
>> the remaining pieces and the final image. Is this at least a
>> reasonable first attempt to get a simple bootable image?
> 
>    Well, that wasn't as tricky as I thought. First observation was that
> trying to run a Plus image on a Pro was not the way to go -- got these
> boot errors after which the boot hung:
> 
> [   12.397294] fan53555-regulator 1-0042: FAN53555 Option[0] Rev[0] Detected!
> [   12.397957] fan53555-regulator 1-0042: Chip ID 0 not supported!
> [   12.398511] fan53555-regulator 1-0042: error -EINVAL: Failed to setup device!
> [   12.399372] fan53555-regulator 1-0042: probe with driver fan53555-regulator failed with error -22
> 
> so based on some online pointers, I defined a "generic" Orange Pi 5
> machine (for which all the underlying RK3588S content was already
> mostly there), built for that new machine, and got a successful boot.
> Just means I'm not including any Pro-specific features (yet), but all
> I wanted was a bootable image.
> 

The Orange Pi 5 Pro is supported neither by the Linux kernel, nor by 
U-Boot (and thus, nor by meta-rockchip). There are some patches on the 
mailing list: 
https://lore.kernel.org/linux-rockchip/[email protected]/. 
Feel free to review and/or test patches there. We typically refuse 
non-upstream DTS for Rockchip boards in U-Boot so you'll have to wait 
for those patches to make it to a release of the Linux kernel first, and 
then it appears in 
https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/ 
and then we can sync in U-Boot and have a defconfig for this board. Once 
that's done and there's a release for U-Boot, then we can support it in 
meta-rockchip.

Cheers,
Quentin