Mainline U-Boot

[jernej]

Hi there!

I added MiQi board support to mainline U-Boot here:
EDIT: It landed in mainline U-Boot:
http://git.denx.de/?p=u-boot.git;a=summary

One of the best things of mainline U-Boot is that there is no need to use any binaries provided by Rockhip. I would be pleased if someone tests this before I send patches upstream. Build config is miqi-rk3288_defconfig and resulting binaries can be flashed according to http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.rockchip

Please let me know how well it works for you.

[Myy]

That looks very interesting. I'll try to give it a shot this week.

[Myy]

I was able to compile your branch, however using rkflashtool like specified in the README led me to nothing besides showing this:

rkflashtool: info: rkflashtool v5.2
rkflashtool: info: Detected RK3288...
rkflashtool: info: interface claimed
rkflashtool: info: MASK ROM MODE
rkflashtool: info: load DDR init

I'll try to search for the right method for flashing this branch directly through USB, as I don't have any SDCard usable right now.

[jernej]

Well, I tested only booting from SD card, because that mode was best described in aforementioned readme file. I will try to make it boot from eMMC too and let you know if I succeed.

[Myy]

Alright ! I'm pretty sure that the problem resides in rkflashtool. I'll try to see if there's USB packets transiting with Wireshark.

Edit:

I checked with Wireshark, packets are being exchanged with the device but it seems to enter some kind of infinite "SUBMIT <-> COMPLETE" loop with the device, sending no data during each 'SUBMIT'. I'll try to debug that this week, if I have some time.

[jernej]

MiQi support landed in U-Boot master, which means it will be in next stable release (2017.5). I will edit OP and delete my branch. Please be aware that usb power patch was not yet merged, so some manual fidling needs to be done in order to power it up, but I guess it will be merge before stable release is published.