a16bitsysop

https://github.com/amarula/bsp-rockchip/releases
 
Finally. PCIE support mainlined in u-boot, 4k support, USB fixes, etc etc etc. This board will now be usable the way I intended to use it.  Time to play around with NVMe boot and SPI flash.

Here is some instructions for a raspberry pi
https://www.raspberrypi.org/forums/viewtopic.php?t=132674
 
It has a local and remote network tho, not just a bridge.

Loverpi FINALLY answered me. Here is the documentation to compile u-boot for SPI: 
 
https://github.com/amarula/bsp-rockchip/releases

Booting from spi into nvme is now working for me ™. It is a hack but if anybody want to try it be aware that you may brick your device.    
 
Most of the needed stuff is already there.  But you have to power the pci regulator manually.    
 
To build u-boot from scratch you have to checkout u-boot@50be9f0e1ccc0909e65132cff216743a49046f97 and apply the attached patches. After that follow the usual way:   
$ make roc-pc-rk3399-spi-nvme_defconfig
$ make all
 
and flash   
idbloader.img at offset 0x00   
u-boot.itb at offset 0x200 (0x40000)  
 
NOTE: 0x40000 is the offset in bytes, use 0x200 for the rockchip flash tool
 
Happy hacking
 
0004-roc-pc-mezzaine-add-defconfig-to-boot-from-spi-and-n.patch0003-hack-nvme-support-into-bootcmd.patch0002-Rk3399-roc-pc-mezziane-boot-from-nvme.patch0001-roc-pc-boot-from-spi.patch

You need an NVME not a SATA type.

I've built the current branch which is 5.4.20. You could go dev which I believe is 5.5.x.

I finally got everything together to power this thing via the 12V header and it works
I did a minimal Ubuntu build like two weeks ago and it booted fine. I ran sbc-bench: http://ix.io/2aVd
 
Now it might be something more than a paper weight

I suggest adding a small patch for all u-boot for rk33xx. It allows to enable direct booting from USB media and significantly facilitates the use of RK33xx models for users. Allows you to easily launch any system from USB without the need for complex settings and manipulations with existing (main) systems on devices on SD or eMMC.
 
The entire path fits in two lines.
 
https://github.com/150balbes/Build-Armbian/blob/master/patch/u-boot/u-boot-arm-64/u-boot-0010-rk-usb-start.patch#L18

Only OT post I'll post, as to not mine the thread with this, but yeah, quite possibly. La frite is missing fulfilment of mezzanine boards and wifi modules, while Renegade Elite has 10 people missing emmc modules (including me) and wifi modules. They've been vague and sketchy, saying they need a minimum order quantity to fulfill missing perks and that we have no reason to complain. 
 
Back OT: ever since kernel 5.4 has been dropped, we got one post from them saying that around christmas, we'd see something released by them in regards to u-boot and I BELIEVE OS. But their communication skills are very lacking. I'm wondering if contacting the Firefly team might yield better results to get the PD issue fixed.

They have been really quiet, they still have 2 or 3 boards they were going to launch last year that never launched on Indiegogo or Kickstarter. Maybe because of problems/negative feedback from the renegade elite, and long delays on la frite as well?

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