[Buildroot] [Bug 8616] New: Fail to build for raspberrypi_defconfig with big endian

[Buildroot] [Bug 8616] New: Fail to build for raspberrypi_defconfig with big endian

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=8616

            Bug ID: 8616
           Summary: Fail to build for raspberrypi_defconfig with big
                    endian
           Product: buildroot
           Version: unspecified
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at buildroot.uclibc.org
          Reporter: paulonunes at mail.com
                CC: buildroot at uclibc.org

Created attachment 6286
  --> https://bugs.busybox.net/attachment.cgi?id=6286&action=edit
last lines of stdout on the failed execution

On building using raspberrypi_defconfig configuration and changing the
endianness to big endian, the buildroot fails to finish the build as attached
files describe in detail.

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[Buildroot] [Bug 8616] Fail to build for raspberrypi_defconfig with big endian

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=8616

Gustavo Zacarias <gustavo@zacarias.com.ar> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED

--- Comment #1 from Gustavo Zacarias <gustavo@zacarias.com.ar> ---
You can't just change endianness arbitrarily and expect that to work.

For starters the pre-compiled rpi-firmware required for the boot process is
only enabled for little-endian, which gives you the error you're seeing because
it's not installed for big-endian.

I don't have much technical detail about the broadcom SOCs used in the rpi1/2
and how open they're to changing endianness, some SOCs require hardware changes
(pin bootstrap), others can be switched in the bootloader, others use fuses and
some can't be changed.
Even if they could be switched in the bootloader for the rpi boards that's a
propietary blob in rpi-firmware, so there's not much you can do.

I'm closing this as invalid.

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