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Gentoo/aarch64_be on Raspberry Pi 3

The pi3be branch in this fork of raspberrypi/linux contains fixes for the kernel to run correctly in big endian more on a Raspberry Pi 3 (tested on model B+). The goal is to have a native platform to run Gentoo/aarch64_be on.

The following peripherals are working:

• HDMI
• USB
• Wired ethernet
• Serial port
• Sdcard (in PIO mode)

The following peripherals are currently not working correctly:

• Sdcard in DMA mode
• WiFi (propaply also related to the Sdcard driver)

How to try it out

• Download the sdcard image file (350MB)
• Uncompress it and write it to an empty sdcard >= 2GB
• Using gparted or similar, grow the ext4 partition to fill the sdcard
• Put the sdcard in a Raspberry Pi 3 and power it up

The default user is pi with the password raspberry.

Note that /usr/portage is empty in the image; either use emerge-webrsync to populate it, or NFS-mount the directory from another machine (the distfiles dir is set to /tmp/distfiles, so it is ok to mount /usr/portage read-only).