sopine-a64 yocto build running on SOPine Baseboard

[tderensis]

I am trying to do a Yocto build (kirkstone) for the sopine-a64 module using the SOPine Baseboard.

I have followed steps in the meta-pine64 repo here: https://github.com/alistair23/meta-pine64

The only exception is that I have specified the kirkstone branch where possible. I have also added console=tty0 to enable HDMI output.

Build Configuration:
BB_VERSION          = "2.0.0"
BUILD_SYS           = "x86_64-linux"
NATIVELSBSTRING     = "universal"
TARGET_SYS          = "aarch64-poky-linux"
MACHINE             = "sopine-a64"
DISTRO              = "poky"
DISTRO_VERSION      = "4.0.1"
TUNE_FEATURES       = "aarch64"
TARGET_FPU          = ""
meta
meta-poky
meta-yocto-bsp      = "kirkstone:4aeda14352a9fa9dd5ba50cf940a2b514fd1ac3c"
meta-oe
meta-python
meta-multimedia     = "kirkstone:fcc7d7eae82be4c180f2e8fa3db90a8ab3be07b7"
meta-arm-toolchain
meta-arm
meta-arm-bsp        = "kirkstone:a8cb33d5139e30b4a643da9a277487299c0e658f"
meta-pine64         = "master:96b5e55c25912c8bd80fbf0e537bf0d3519989ec"
meta-python2        = "kirkstone:f02882e2aa9279ca7becca8d0cedbffe88b5a253"


When I boot the resulting image (core-image-base), I see uboot text, then yocto splash screen. However, almost immediately the HDMI looses connection, but the board remains powered (LEDs on).

Has the kirkstone yocto build been verified with the meta-pine64 layer?