First Rockchip port repo.

[Sebastian Sumpf]

Hi Michael,

On 1/26/23 11:51, Michael Grunditz wrote:
> Hi
> 
> I have made a github repo for my Rockchip port.
> It is only RK3588 for now, but I plan to add rk3399
> for supporting Pinebook Pro.
> 
> There are a number of things not working.Most
> irritating is USB. My old tree had driver in dde_linux
> repo. Currently if built with drivers-interactive it fails
> in a couple of library dependencies. If built from a run
> file it won't build all lx_kit files needed. Feel free to help
> me, fork and make pull request.
> 
> There is a crt0.s in the start directory that you can copy
> to base-hw. I hope it doesn't break things. It is required
> for this platform, probably because I start genode with
> "go" and not bootm. I can't get bootm to work.
> 
> The requirement for running this is a RK3588 board
> with uboot that support USB and HDMI. You need to run
> "usb start" before booting.
> 
> The video driver gets the screen mode from what uboot
> has configured with EDID. Works just fine with 1080p
> monitor. But not with a 4k monitor,
> 
> Well this is it! I have enjoyed it so far. I have tried to
> being careful with authours by adding myself and kept
> original developer where appropriate. Please fix if I
> did something wrong there. It might also be traces from
> A64 port , which you also can remove if you find any.
> 
> I also kept the license and base copyright which means
> that I give this away to The labs.
> 
> Have fun.
> 
> The repo:
> https://github.com/mickenx/genode-rockchip
I compiled your Rockship repo, looks good to me! We will try to get a 
QuartzPro64 board in order to test your effort.

Regarding the USB host driver, I would suggest to not base it on the old 
dde_linux version but on our current porting approach [1] [2] [3] [7] [8]. As a 
reference you could use the Allwinner USB host driver [4]. Stefan will also give 
a talk about it at FOSDEM'23 [4]. This should make porting easier and you could 
base the driver on possible vendor kernel sources. The imx repo already contains 
a DWC3 controller port, but doesn't use the tiny config approach [9]. It still 
can be used as reference.

[1] http://genodians.org/skalk/2021-04-06-dde-linux-experiments
[2] http://genodians.org/skalk/2021-04-08-dde-linux-experiments-1
[3] http://genodians.org/skalk/2021-06-21-dde-linux-experiments-2
[4] 
https://github.com/genodelabs/genode-allwinner/tree/master/src/drivers/usb_host/a64
[5] https://fosdem.org/2023/schedule/event/ddtransplant/
[6] https://github.com/genodelabs/genode-imx/tree/master/src/drivers/usb_host/imx8mq
[7] http://genodians.org/nfeske/2021-09-03-pine-fun-networking
[8] http://genodians.org/nfeske/2021-12-21-pine-fun-display
[9] https://genodians.org/nfeske/2021-05-12-pine-fun-linux

Cheers,

Sebastian

-- 
Sebastian Sumpf
Genode Labs

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