According to the FIT image specification, these properties are mandatory.
https://gitlab.denx.de/u-boot/u-boot/-/blob/master/doc/uImage.FIT/source_file_format.txt

I have verified that u-boot fails to boot if these properties are not
specified

## Loading kernel from FIT Image at c2000000 ...
   Using 'conf-1' configuration
   Trying 'kernel' kernel subimage
     Description:  kernel
     Created:      2020-09-01   0:00:00 UTC
     Type:         Kernel Image
     Compression:  uncompressed
     Data Start:   0xc20000b4
     Data Size:    7329320 Bytes = 7 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: unavailable
     Entry Point:  unavailable
     Hash algo:    sha256
     Hash value:
1d5ceba5d651e2b9bede9945427a7b759fe4891812eb9a67c53ecd4544c8fae8
   Verifying Hash Integrity ... sha256+ OK
Can't get image load address!

Regards, Alex


El mar., 10 nov. 2020 a las 15:38, Denis Osterland-Heim (<
denis.osterland@diehl.com>) escribió:

> Hi,
>
> AFAIK bootloaders should have reasonable defaults for this values.
> So they should be optional.
>
> Regrads, Denis
>
> Am Dienstag, den 10.11.2020, 10:11 +0100 schrieb avazquez.dev@gmail.com:
> > From: AVazquez <avazquez.dev@gmail.com>
> >
> > Add mandatory properties for types kernel and ramdisk.
> >
> > Signed-off-by: AVazquez <avazquez.dev@gmail.com>
> > ---
> >  platforms/kernel-fit.in            | 10 ++++++++++
> >  scripts/lib/ptxd_make_fit_image.sh |  4 ++++
> >  2 files changed, 14 insertions(+)
> >
> > diff --git a/platforms/kernel-fit.in b/platforms/kernel-fit.in
> > index 8cbc1a8..d917a97 100644
> > --- a/platforms/kernel-fit.in
> > +++ b/platforms/kernel-fit.in
> > @@ -17,6 +17,16 @@ menuconfig KERNEL_FIT
> >
> >  if KERNEL_FIT
> >
> > +config KERNEL_FIT_LOAD
> > +string
> > +default "0xC0008000"
> > +prompt "Kernel load address"
> > +
> > +config KERNEL_FIT_ENTRY
> > +string
> > +default "0xC0008000"
> > +prompt "Kernel entry address"
> > +
> >  config KERNEL_FIT_SIGNED
> >  bool
> >  prompt "sign FIT image"
> > diff --git a/scripts/lib/ptxd_make_fit_image.sh
> b/scripts/lib/ptxd_make_fit_image.sh
> > index 9754d1e..4314b0e 100644
> > --- a/scripts/lib/ptxd_make_fit_image.sh
> > +++ b/scripts/lib/ptxd_make_fit_image.sh
> > @@ -21,7 +21,10 @@ ptxd_make_image_fit_its() {
> >  data = /incbin/("${image_kernel}");
> >  type = "kernel";
> >  arch = "$(ptxd_get_ptxconf PTXCONF_ARCH_STRING)";
> > +os = "linux";
> >  compression = "none";
> > +load = <$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_LOAD)>;
> > +entry = <$(ptxd_get_ptxconf PTXCONF_KERNEL_FIT_ENTRY)>;
> >  hash-1 {
> >  algo = "sha256";
> >  };
> > @@ -33,6 +36,7 @@ EOF
> >  description = "initramfs";
> >  data = /incbin/("${image_initramfs}");
> >  type = "ramdisk";
> > +os = "linux";
> >  compression = "none";
> >  hash-1 {
> >  algo = "sha256";
> Diehl Connectivity Solutions GmbH
> Geschäftsführung: Horst Leonberger
> Sitz der Gesellschaft: Nürnberg - Registergericht: Amtsgericht
> Nürnberg: HRB 32315
>
> ________________________________
>
> Der Inhalt der vorstehenden E-Mail ist nicht rechtlich bindend. Diese
> E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte Informationen.
> Informieren Sie uns bitte, wenn Sie diese E-Mail faelschlicherweise
> erhalten haben. Bitte loeschen Sie in diesem Fall die Nachricht.
> Jede unerlaubte Form der Reproduktion, Bekanntgabe, Aenderung, Verteilung
> und/oder Publikation dieser E-Mail ist strengstens untersagt.
>
> - Informationen zum Datenschutz, insbesondere zu Ihren Rechten, erhalten
> Sie unter:
>
> https://www.diehl.com/group/de/transparenz-und-informationspflichten/
>
> The contents of the above mentioned e-mail is not legally binding. This
> e-mail contains confidential and/or legally protected information. Please
> inform us if you have received this e-mail by
> mistake and delete it in such a case. Each unauthorized reproduction,
> disclosure, alteration, distribution and/or publication of this e-mail is
> strictly prohibited.
>
> - For general information on data protection and your respective rights
> please visit:
>
> https://www.diehl.com/group/en/transparency-and-information-obligations/
>
>
> _______________________________________________
> ptxdist mailing list
> ptxdist@pengutronix.de
> To unsubscribe, send a mail with subject "unsubscribe" to
> ptxdist-request@pengutronix.de
>