Libre Raspbian Image Won't Boot (roc-rk3328-cc)

Hi all - Looking for help getting Raspian to boot on my Renegade.

  1. Downloaded 2023-05-03-raspbian-bullseye-arm64+roc-rk3328-cc.img
  2. Burned image to 128GB SD card using Raspberry Pi Imager.
  3. Inserted SD card, recycled power, will not boot.

Via serial debug I see the following:

PMIC: RK8050 (on=0x40, off=0x00)
DDR4, 800MHz
BW=32 Col=10 Bk=4 BG=2 CS0 Row=16 CS1 Row=16 CS=2 Die BW=16 Size=4096MB
Trying to boot from BOOTROM
Returning to boot ROM…
Trying to boot from MMC1
lz4 image
NOTICE: BL31: v2.9(release):v2.8-1351-g8929dffc0
NOTICE: BL31: Built : 02:49:07, Jul 31 2023
NOTICE: BL31:Rockchip release version: v1.2

U-Boot 2023.07+ (Jul 31 2023 - 02:49:10 -0400) Libre Computer ROC-RK3328-CC

DRAM: 4 GiB
PMIC: RK8050 (on=0x40, off=0x00)
Core: 244 devices, 31 uclasses, devicetree: separate
MMC: mmc@ff500000: 1, mmc@ff520000: 0
Loading Environment from FAT… Unable to read “uboot.env” from mmc1:1…
Error (-2): cannot determine file size
tmdsclock = 297000000; chipversion = 1
“Error” handler, esr 0xbf000002
elr: 000000000027a8a0 lr : 000000000027a828 (reloc)
elr: 00000000fe7338a0 lr : 00000000fe733828
x0 : 00000000ff080064 x1 : 0000000000000000
x2 : 00000001007a4000 x3 : 0000000000000000
x4 : 0000000000000000 x5 : 0000000000000000
x6 : 00000000ffffdff1 x7 : 0000000000000000
x8 : 0000000000000001 x9 : 000000000000000d
x10: 0000000000000006 x11: 000000000001869f
x12: 0000000000000000 x13: 0000000000000000
x14: 00000000ffffffff x15: 00000000f66a6b9d
x16: 0000000000001140 x17: 0000000000000000
x18: 00000000f66b7da0 x19: 00000000f66c4a10
x20: 00000000f66b93a0 x21: 0000000000000000
x22: 0000000000007fff x23: 0000000000800800
x24: 00000000f66c6ff0 x25: 00000000fe7d8598
x26: 0000000000000000 x27: 0000000000000000
x28: 0000000000000000 x29: 00000000f66a7300

Code: 78002415 17fffff2 f9401260 8b020002 (eb00005f)
Resetting CPU …

resetting …
PMIC: RK8050 (on=0x40, off=0x00)

[… THIS JUST REPEATS OVER AND OVER AGAIN…]

Any suggestions as to what I am doing wrong? TIA to all.

What is the make and model of the display you have?

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Thank you for the reply. Samsung, U28e510D.

You were right :slight_smile: - I disconnected the display from the HDMI port and got further - I can now ping the device, but am not seeing a login on the serial debug, nor have I been successful using ssh to connect to the IP. Sorry for the newbie questions, I am trying to utilize Libre images to make better use of the device. Thanks again for the assistance.

After booting a Libre image, what is the recommended way to connect via serial debug or eth?

Serial is enabled only as part of the bootloader stage. To have it working in the Linux stage, you need to run sudo ldto merge uart2 and reboot. For SSH, use the normal operating system method.

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