Missing FDT description in DTB

Missing FDT description in DTB

[Tomek Domek]

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Hi
I have FSBL and SSBL. SPL uboot starts successfully and u-boot.img is
loaded successfully but it hangs on 'boot_from_devices' function and
'fit_find_config_node':

fit_find_config_node: Missing FDT description in DTB
No matching DT out of these options:
Firmware image with one or more FDT blobs
boot_from_devices error
SPL: failed to boot from all boot devices

I have suspicion that I wrongly create u-boot.img. My system build do this
by executing:

./tools/mkimage -f auto -A arm -T firmware -C none -O u-boot -a 0x100000 -e
0 -n "someName" -E  -d u-boot-no-dtb.bin u-boot.img  >/dev/null
The same issue occurs when I use u-boot-dtb.bin version.
The value 0x100000 is the value stored in CONFIG_SYS_TEXT_BASE.

 And this uboot and spl is somekind of experimental software which is in
the middle of creation. Could anyone try to guide what might be possible
the reason of the issue as I am a bit new in u-boot development?

BR
Tomek

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Re: Missing FDT description in DTB

[Tomek Domek]

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OK I found on my own.
The proper mkimage command is:
./tools/mkimage -A arm -T firmware -C none -O u-boot -a 0x100000 -e 0 -n
"someName" -d u-boot-dtb.bin u-boot.img
without '-f auto and -E'

pt., 6 gru 2019 o 10:03 Tomek Domek <tomekdomek8585@gmail.com> napisał(a):

> Hi
> I have FSBL and SSBL. SPL uboot starts successfully and u-boot.img is
> loaded successfully but it hangs on 'boot_from_devices' function and
> 'fit_find_config_node':
>
> fit_find_config_node: Missing FDT description in DTB
> No matching DT out of these options:
> Firmware image with one or more FDT blobs
> boot_from_devices error
> SPL: failed to boot from all boot devices
>
> I have suspicion that I wrongly create u-boot.img. My system build do this
> by executing:
>
> ./tools/mkimage -f auto -A arm -T firmware -C none -O u-boot -a 0x100000
> -e 0 -n "someName" -E  -d u-boot-no-dtb.bin u-boot.img  >/dev/null
> The same issue occurs when I use u-boot-dtb.bin version.
> The value 0x100000 is the value stored in CONFIG_SYS_TEXT_BASE.
>
>  And this uboot and spl is somekind of experimental software which is in
> the middle of creation. Could anyone try to guide what might be possible
> the reason of the issue as I am a bit new in u-boot development?
>
> BR
> Tomek
>
>

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Re: Missing FDT description in DTB

[Valdis Klētnieks]

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On Fri, 06 Dec 2019 10:03:34 +0100, Tomek Domek said:

>  And this uboot and spl is somekind of experimental software which is in
> the middle of creation. Could anyone try to guide what might be possible
> the reason of the issue as I am a bit new in u-boot development?

Is there a reason why you're using an experimental uboot/spl rather than
a known-stable working version for whatever hardware this is?

(Of course, if this is bring-up of a new architecture that has never been
supported by uboot, so there's never been a  working uboot for the device, it's
time to quote the movie Animal House: "My advice to you is to start drinking
heavily")


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Re: Missing FDT description in DTB

[Tomek Domek]

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Yes, it is for bringup purpose. We have working uboot software and we split
the code in order to have FSBL and SSBL and I had such problem but it was a
matter of deleting "-f auto" and -E option from mkimage for building
u-boot.img. Now FSBL, SSBL and kernel starts successfully.

pt., 6 gru 2019 o 12:26 Valdis Klētnieks <valdis.kletnieks@vt.edu>
napisał(a):

> On Fri, 06 Dec 2019 10:03:34 +0100, Tomek Domek said:
>
> >  And this uboot and spl is somekind of experimental software which is in
> > the middle of creation. Could anyone try to guide what might be possible
> > the reason of the issue as I am a bit new in u-boot development?
>
> Is there a reason why you're using an experimental uboot/spl rather than
> a known-stable working version for whatever hardware this is?
>
> (Of course, if this is bring-up of a new architecture that has never been
> supported by uboot, so there's never been a  working uboot for the device,
> it's
> time to quote the movie Animal House: "My advice to you is to start
> drinking
> heavily")
>
>

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