Hello,
I'm sorry can not provide dmesg output.
This is the device I have [1], it's NanoPC-T6
I could install 7.8 following guide here [2]. I was using
MicroSD card. I did create image:
dd if=miniroot78.img of=/dev/rsd3c bs=1m
dd if=/usr/local/share/u-boot/nanopc-t6-rk3588/u-boot-rockchip.bin \
of=/dev/sd3c seek=64
I did install 7.8 to internal emmc disk. To boot the box after install
I had to keep MicroSD card inserted, thinking I will eventually figure
out later how to get it booting without MicroSD.
The next step was to try to upgrade to snapshot. Was doing
yesterday so snapshot had to be fairly recent.
the upgrade process was smooth, machine then rebooted and did
not came back.
this is what I see on serial console when connecting from linx
where 1500000 speed is supported:
--------8<---------------8<---------------8<------------------8<--------
DDR 9fa84341ce typ 24/09/06-09:51:11,fwver: v1.18
ch0 ttot10
ch1 ttot10
ch2 ttot10
ch3 ttot10
ch0 ttot16
LPDDR4X, 2112MHz
channel[0] BW=16 Col=10 Bk=8 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=2048MB
ch1 ttot18
channel[1] BW=16 Col=10 Bk=8 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=2048MB
ch2 ttot16
channel[2] BW=16 Col=10 Bk=8 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=2048MB
ch3 ttot16
channel[3] BW=16 Col=10 Bk=8 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=2048MB
Manufacturer ID:0x1
DQS rds:l0,l0
CH0 RX Vref:26.3%, TX Vref:20.8%,19.8%
DQ rds:l0 l0 h3 h1 l1 h2 h1 h1, l0 h2 l0 h2 l2 l0 h1 h3
DQS rds:h1,h1
CH1 RX Vref:25.0%, TX Vref:21.8%,21.8%
DQ rds:h1 l0 l0 h2 h1 h2 h2 h1, h1 h5 l1 l0 h7 h1 h3 h3
DQS rds:l1,h1
CH2 RX Vref:25.4%, TX Vref:20.8%,21.8%
DQ rds:h2 h7 h6 h1 l0 h2 l0 h1, l0 h2 h4 h2 l0 l0 l0 l0
DQS rds:l0,h1
CH3 RX Vref:29.3%, TX Vref:20.8%,20.8%
DQ rds:h2 h2 h2 h1 h2 h1 l0 h3, h2 h1 l0 h2 h6 h2 h2 h2
stride=0x2, ddr_config=0x4
hash ch_mask0-1 0x20 0x40, bank_mask0-3 0xa00 0x1400 0x2800 0x0, rank_mask0
0x401000
change to F1: 528MHz
ch0 ttot10
ch1 ttot10
ch2 ttot10
ch3 ttot10
change to F2: 1068MHz
ch0 ttot12
ch1 ttot14
ch2 ttot12
ch3 ttot12
change to F3: 1560MHz
ch0 ttot14
ch1 ttot16
ch2 ttot14
ch3 ttot14
change to F0: 2112MHz
ch0 ttot16
ch1 ttot18
ch2 ttot16
ch3 ttot16
out
--------8<---------------8<---------------8<------------------8<--------
I suspect machine stops because it does not know how to boot from MicroSD card.
So it's missing u-boot. It's whole new adventure so I'm kind of lost. Will be
glad for any pointer to guides on how to unlock/restore the box back to factory
settings.
thanks and
regards
sashan
[1] https://wiki.friendlyelec.com/wiki/index.php/NanoPC-T6#NanoPC-T6
[2] https://ftp.openbsd.org/pub/OpenBSD/7.8/arm64/INSTALL.arm64
