overlays: Add vl805 overlay
authorPhil Elwell <phil@raspberrypi.com>
Wed, 12 Jan 2022 12:48:53 +0000 (12:48 +0000)
committerPhil Elwell <phil@raspberrypi.com>
Wed, 12 Jan 2022 12:48:53 +0000 (12:48 +0000)
commit1b3c96445466fa8f26f801cfce8731c3281cd670
tree2d292e09b9c9054afc8745ffb8c98f1934af7eae
parentd23b69f71f3fab2ab53f41baaeccc73037d765e8
overlays: Add vl805 overlay

With the automatic VL805 support being removed from the standard
CM4 dtb (since most CM4 carriers don't have a VL805), retain support
on those that do by creating a "vl805" overlay that restores the
deleted "usb@0,0" node.

The "vl805" overlay will be loaded automatically (after an upcoming
firmware update) on CM4 boards where the EEPROM config includes the
setting VL805=1.

See: https://forums.raspberrypi.com/viewtopic.php?t=326088

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
arch/arm/boot/dts/overlays/Makefile
arch/arm/boot/dts/overlays/README
arch/arm/boot/dts/overlays/vl805-overlay.dts [new file with mode: 0644]