Hi Michael,
El jue, 30 sept 2021 a las 12:55, Michael Olbrich (<[email protected]>)
escribió:
> Hi,
>
> On Wed, Sep 29, 2021 at 05:57:54PM +0200, Guillermo Rodriguez Garcia wrote:
> > TF-A recently introduced the FIP ("Firmware Image Package") which is a
> > format for embedding other bootloader images as payloads in a single
> > archive, which is then read and processed by TF-A.
> >
> > In platforms such as the stm32mp1 where TF-A is used in conjunction with
> > U-Boot, U-Boot is now embedded in the FIP image as part of the TF-A
> package
> > build.
> >
> > To achieve this we added a dependency in the TF-A rule files:
> >
> > select U_BOOT if TF_A_FIP
> >
> > The goal is to be able to build the fip command with a command similar to
> > this one:
> >
> > make ARM_ARCH_MAJOR=7 ARCH=aarch32 PLAT=stm32mp1 \
> > BL33=<u-boot_path>/u-boot-nodtb.bin \
> > BL33_CFG=<u-boot_path>/u-boot.dtb \
> > BL32=<tfa_path>/bl32.bin \
> > FW_CONFIG=<tfa_path>/fw-config.dtb \
> > DTB_FILE_NAME=<fdt file name>.dtb \
> > fip
> >
> > The problem is that the dependency set in the tf-a.in file only ensures
> > that the install target of u-boot will run before the install target of
> > tf-a, but at that time the images have not yet been copied to their final
> > destination (platform/images..). Which is the proper way to work around
> > this?
>
> So, the way dependencies work in ptxdist, installing files in the
> targetinstall stage in one package and then using it in a build stage in
> another regular package (image packages are different here) is not
> possible.
> This issue has come up before and I've looked for a good solution but
> changing the dependencies is unfortunately not possible.
>
I understand.
>
> So for such a use-case, the files must be installed in the install stage.
> Note, that you cannot install the files into platform/images:
> 'ptxdist clean root' will remove that but only cleans the targetinstall
> stages, so afterwards the files will be missing.
>
> So I suggest the files are installed to
> $(<PKG>_PKGDIR)/usr/lib/<something>/
> The install stage will then copy the files to sysroot-target and the next
> package can find the files there.
>
Uhm, the files themselves are not needed in the target fs; they are only
required as intermediate files to build the FIP image.
Should I still copy them to sysroot-target?
Thanks,
Guillermo
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