The following table lists the U-Boot file associated with each ConnectCore 95 variant:

RAM size U-Boot file U-Boot defconfig

2GiB

imx-boot-ccimx95-dvk.bin-flash_a55

ccimx95-dvk_defconfig

Check your RAM size on the serial console boot log:

U-Boot SPL dub-2024.04-r5.2+g25c8faec2f83+p0 (May 27 2026 - 10:40:43 +0000)
SOC: 0xb0009500
LC: 0x40010
SYS Boot reason: por, origin: -1, errid: -1
SYS shutdown reason: por, origin: -1, errid: -1
DDRMIX is powered UP
Normal Boot
Trying to boot from MMC1
Primary set selected
Load image from MMC/SD 0xc9400
NOTICE:  BL31: v2.10.0  (release):lf-6.6.52-2.2.2-dirty
NOTICE:  BL31: Built : 09:57:54, Oct 17 2025


U-Boot dub-2024.04-r5.2+g25c8faec2f83+p0 (May 27 2026 - 10:40:43 +0000)

CPU:   i.MX95 rev2.0 at 1800MHz
CPU:   Extended Industrial temperature grade (-40C to 125C) at 28C
LM Boot reason: por, origin: -1, errid: -1
LM shutdown reason: por, origin: -1, errid: -1
DRAM:  1.8 GiB
Error: ele_read_common_fuse: ret -5, fuse_id 0x139, response 0xbc29
ahab read fuse failed -5, 0xbc29
Cannot read HWID
MCA:   HW_VER=1  FW_VER=0.09
cfg name not match mx95alt:ccimx95dvk, ignore
Core:  303 devices, 36 uclasses, devicetree: separate
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
[*]-Video Link 0clk disp1pix already disabled
(1280 x 800)
        [0] display-controller@4b400000, video
        [1] channel@0, video_bridge
        [2] bridge@8, video_bridge
        [3] channel@0, display
        [4] lvds0_panel, panel
In:    serial
Out:   serial
Err:   serial
Model: Digi International ConnectCore 95 DVK
ConnectCore 95 SOM variant 0x03: 1.8 GiB LPDDR5, Wi-Fi, Bluetooth
ConnectCore 95 SMARC variant 0x03: Dual Ethernet, MCA
  Board version 2, ID undefined
Boot:  MMC0

BuildInfo:
  - SM firmware Build 733, Commit ecd89d0b, May 05 2026 00:00:18
  - ELE firmware version 2.0.3-5f1204b7

Error: ele_read_common_fuse: ret -5, fuse_id 0x139, response 0xbc29
ahab read fuse failed -5, 0xbc29
flash target is MMC:0
Net:   eth0: enetc-0 [PRIME], eth1: enetc-1
Fastboot: Normal
Normal Boot
Hit any key to stop autoboot:  0

=> 

U-Boot might show less DRAM than the nominal. This is due to elements such as the secure monitor (OP-TEE) reserving part of the memory.