LoadTrustBL error when booting

[pedroz]

Hi,
I got recently a Rock64 4GB so I'm quite new user
I've done already few experiments with ayufan's images from "stable" branch (0.5.x) and must say it works great. I really appreciate that.
So I've tried 0.6.x images but still cannot succeed with booting them. With serial UART adapter debugging I'm getting with any 0.6.x image:

Code:

DDR version 1.06 20170424 In SRX LPDDR3 786MHz Bus Width=32 Col=11 Bank=8 Row=15/15 CS=2 Die Bus-Width=32 Size=4096MB ddrconfig:7 OUT Boot1 Release Time: 2017-05-18, version: 2.43 ChipType = 0x11, 188 emmc reinit emmc reinit SdmmcInit=2 20 SdmmcInit=0 0 BootCapSize=0 UserCapSize=14804MB FwPartOffset=2000 , 0 StorageInit ok = 48862 Raw SecureMode = 0 SecureInit read PBA: 0x4 SecureInit read PBA: 0x404 SecureInit read PBA: 0x804 SecureInit read PBA: 0xc04 SecureInit read PBA: 0x1004 SecureInit ret = 0, SecureMode = 0 LoadTrustBL LoadTrustBL error:-1 Raw SecureMode = 0 SecureInit read PBA: 0x4 SecureInit read PBA: 0x404 SecureInit read PBA: 0x804 SecureInit read PBA: 0xc04 SecureInit read PBA: 0x1004 SecureInit ret = -2, SecureMode = 0 powerOn 725015 Usb re Boot. 6725015

I guess that LoadTrustBL is where the problem starts.. is it bootloader failure?
What's interesting, is that it's the log from try of booting "u-boot-flash-spi-rock64" image - so I guess the SPI is not flashed correctly
Do you have any ideas what I'm doing wrong?
Thanks!