SD Card create a customized Boot Partition & Crashing Kernel Boot

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SD Card create a customized Boot Partition & Crashing Kernel Boot

Contributor III


I am using flex-builder to build a u-boot image  (that I'm trying to customize).

from the ls1043ardb build - we have a custom LS1043a-RGW board - that 

I was hoping that would boot without any big issues.

My developer "gave me" a Image/Image.gz that runs on a "regular" LS1043a-RGW

board (Image, Image.gz, and fsl-ls1043a-rgw-sdk.dtb) as well as a rootfs


1) First I built a "standard" ls1043a-rdb boot_partition and installed it on my SD Card.

    flex-builder -a arm64 -m ls1043ardb -b sd

2) I used flex-installer to create the partitions and load the rootfs and this boot partition on sd card

    sudo flex-installer -b bootpartition_LS_arm64_lts_4.19.tgz -r openwrt-layerscape-armv8_64b-device-ls1043ardb-rootfs.tar.gz -d /dev/sde

3) I used the following procedure to update the kernel/device tree (with Image/Image.gz and the dtb to

     all of the associated fsl-ls1043a-rdb-xxx.dtb)

       LS1043ARDB - How to update Linux kernel and device tree on SD card

3) After that - because I don't have a proper firmware image built (Build composite uboot image),

     I flash the u-boot, iram and fsl_fman code - using this procedure:

        dd if=u.bin of=/dev/mmcblk0 bs=512 seek=8 && sync
       dd if=fsl_fman_ucode_t2080_r1.1_108_4_5.bin of=/dev/mmcblk0 bs=512 seek=18432 && sync
       dd if=iram_Type_A_LS1021a_r1.0.bin of=/dev/mmcblk0 bs=512 seek=18944 && sync

4) I put the SD Card into our custom board, and start to boot

    (see attached file for total log).

5) it seems that the first line of starting the kernel indicates that it is something built on Monday - which is likely

    something I built in step #1

   [    0.000000] Linux version 4.19.68-00019-ga5c3ba83fc17 (tom@newSNIPC) (gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)) #1 SMP PREEMPT Mon Mar 30 14:

is this procedure still valid?

what am I doing wrong?


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NXP TechSupport
NXP TechSupport

1. Please modify bootargs as the following 

console=ttyS0,115200 root=/dev/mmcblk0p4 earlycon=uart8250,mmio,0x21c0500 mtdparts=60000000.nor:2m@0x100000(nor_bank0_uboot),40

Would you please run pri command to provide your u-boot environment?

2. Linux Kernel crash at "Internal error: undefined instruction", please check whether there is problem with DDR memory. Did Linux Kernel always crash at the same place? Have you used DDRv tool to do DDR memory validation and testing?

You could use mtest utility provided in u-boot to do DDR memory test.

Please configure CONFIG_CMD_MEMTEST in include/configs/ls1043ardb.h, then run the following command in u-boot prompt to test DDR memory.

mtest <start_address> <end_address>

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