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!