Why mfg tool stops loading u-boot for custom board

[ivanljubicic]

Hi,

I have build custom board with imx6 dual and ddr2 memory, and I have build u-boot with memory calibration from ddr stress tool. I can load u-boot.imx with sb_loader.exe into target memory and run it. I see led is turning ON on the board.

Problem is that I can not load u-boot.imx with mfg tool. When loading u-boot mfgtool stops and stays in that position infinite time without error. It seems that u-boot somehow blocks mfgtool. How is that possible?

What I am doing wrong?

Please help!

Thanks, regards, Ivan Ljubicic.

[igorpadykov]

Hi Ivan

typical uboot images in MFG2 Tool folder are images with offset -

written for programming on external boot devices. For usb

load one needs the same images, but without offset. Just for example

attached u-boot-mx6q-sabresd.bin - original Uboot image found in MFG2

package (..\Profiles\MX6Q Linux Update\OS Firmware).

u-boot-mx6q-sabresd_nopad.bin  - the same image without offset.

One can use modified ucl2.xml u-boot-mx6q-sabresd_nopad.bin is Uboot image

without offset (0x400). Modified "SabreSD-SD" profile, tested with

Mfgtools-Rel-L3.0.35_1.0.1_MX6Q_UPDATER:

<LIST name="SabreSD-SD" desc="USB SDP">

    <CMD state="BootStrap" type="boot" body="BootStrap" file ="u-boot-mx6q-sabresd_nopad.bin" >Loading image</CMD>

    <CMD state="BootStrap" type="jump" > Jumping to image. </CMD>

    <CMD state="Updater" type="push" body="$ echo Load Complete!">Done</CMD>

</LIST>

Best regards

igor

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[ivanljubicic]

Hi Igor,

I have done:

dd if=u-boot.bin of=u-boot-nopad.bin bs=1024 skip=1

and try to load with mfgtool2, but I have the same problem ant it is

only with bin file with valid DDR calibration configuration. If I use

non valid DDR configuration file Mfg-tool pass on with execution to

uImage and initramfs.cpio.gz.uboot but fails on jump because of memory.

sb_loader that comes with mfgtool fails to load good memory calibrated

bin file, but with version sb-loader 1.2 I can load such image to memory

and run it.

Why sb_loader version 1.2 can load image to memory and all other tools

can not.? I am not clear what I am missing.

Thanks, regards, Ivan.

[igorpadykov]

Hi Ivan

what board is used for image building, strictly speaking

mfg tools was tested only with nxp reference boards,

please refer to Yocto Guide sect.5.1 Build configurations.

Sources of uboot and linux at:

http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/tree/?h=imx_v2015.04_4.1.15_1.0.0_ga

http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/?h=imx_4.1.15_1.0.0_ga

If image is built for other board, usually it is supported by community

difference between Yocto Community BSP and Free... | NXP Community

Such builds were not tested with mfg tools, however they probably will work

fine with sb_loader and other customized for such purposes tools.

Also such boards usually use u-boot-fslc uboot, not nxp uboot-imx and there

may be differencies between them.

sb_loader is not officially supported tool for i.MX6 processor, so seems proper way

to post that on

https://lists.yoctoproject.org/listinfo/meta-freescale

Best regards

igor

[ivanljubicic]

Hi Igor,

I have managed to fix problem. It was with config memory in

400mhz_2x512mx32.cfg file.

Count of

DATA 4, address, value

must be under 128 commands. If it is over sb_loader from mfg tool will

report memory problem. So I can now load uboot and start it over

mfgtool. But problem is now to load uImage and initramfs.cpio.gz.uboot.

uImage I have created from zImage with following command:

mkimage -A arm -O linux -T kernel -C none -a 0x0 -e 0x0 -n "Linux

kernel" -d zImage uImage

and

initramfs.cpio.gz.uboot

I have build with: bitbake fsl-image-mfgtool-initramfs

Can I use those files how I created them or there is another option?

Thanks, regards, Ivan Ljubicic.