Orangepi2/plus2/PC H3 Linux mainline support

jacer

mainline kernel support is needed for H3 chip as well as Mali400 GPU driver. Seems like an obstacle for us.

faddat

They're working on mainlining the H3, and progress seems quick.  as for mali.....

http://www.phoronix.com/scan.php?page=news_item&px=MTg4Mjk

oh and:
http://www.phoronix.com/scan.php?page=news_item&px=MTA0OTQ   .....it runs quake 3, so it can't be all that bad...

elcct

I couldn't apply v4 patches cleanly. Unfortunately have little time now to go further

faddat

my desire for a cluster computing necklace is going to drive me to learn C-- not like that's a bad thing, anyway.....

codekipper

@elcct
You may find it easier to sync to Hans' sunxi-wip git branch, it now contains all the H3 patches from Jens and it looks like he's working on usb.
Details are here https://github.com/jwrdegoede/linux-sunxi/commits/sunxi-wip
I've not tried this yet but I will ASAP,
CK

faddat

@codekipper, thanks once again!  I'm giving it another go

tdack

I've followed CodeKipper's steps in post #2 to build u-boot and then built a 4.3.0rc6 kernel using the sunxi-wip branch of jwrdegoede/linux-sunxi

To get u-boot to boot a kernel I had to use the h3-*.dts* files from the linux-sunxi sunxi-wip branch in the u-boot sources.

The OrangePi Plus boots to a u-boot prompt, but can't set core voltage and cpu freq:

1. U-Boot SPL 2015.10-00058-gf4ccf7d-dirty (Nov 15 2015 - 13:14:51)
   
2. DRAM: 1024 MiB
   
3. Failed to set core voltage! Can't set CPU frequency
   
4. 
   
5. 
   
6. U-Boot 2015.10-00058-gf4ccf7d-dirty (Nov 15 2015 - 13:14:51 +1100) Allwinner Technology
   
7. 
   
8. CPU:   Allwinner H3 (SUN8I)
   
9. DRAM:  1 GiB
   
10. MMC:   SUNXI SD/MMC: 0
    
11. *** Warning - bad CRC, using default environment
    

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It then boots the kernel but the kernel doesn't finish booting and hangs at:

1. <div><div>[    0.987517] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)</div><div>[    0.996380] sunxi-mmc 1c0f000.mmc: No vqmmc regulator found</div><div>[    1.002527] sunxi-mmc 1c0f000.mmc: Got CD GPIO</div></div><div></div>

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Full u-boot and kernel boot log: http://pastebin.com/QkfZMw5e

Any suggestions on what to do to resolve the initial u-boot core voltage and cpu freq errors or how to progress further in booting the kernel?

fritz

the sunxi-wip branch of jwrdegoede/linux-sunxi use the first version of @jemk's H3-support-patchset.
commits are from 15 May 2015.but it's not for sure that this is a problem.
Will try later with this branch.
If you want compare my boot.log compiled from linux-next branch and yours:
http://pastebin.com/b9ynk2f2

fritz

@tdack
Can confirm. sunxi-wip halts at:

[    1.013141] sunxi-mmc 1c0f000.mmc: Got CD GPIO

there is something wrong.
But there are some patches for enabling USB support for the H3 not yet pushed to the mailinglist.
looks interesting.

fritz

Sorry for the "triple" posting, but @melanrz is my master.

Ok serious now.
When i apply the WIP USB patches from sunxi-wip branch of @jwrdegoede to my linux-next branch with the V4 patches from @jemk then it works.
definitly something wrong with sunxi-wip
complete boot-log:
http://pastebin.com/xpqj3VFz

For now you can only play with GPIO's but USB support is coming.