[edk2-platforms: PATCH v2 0/1] Platform/Rpi3: Add compatible property to the "usb" Device Tree node

["Pete Batard" <pete@akeo.ie>]

(v2 as the previous patch had a FreePool call missing).

The following patch adds automatic the insertion of "bcm,bcm2835-usb" into the
"usb" Device Tree node for the Raspberry Pi 3, if not already present.

In terms of DTS structure, this patch basically alters:
  compatible = "brcm,bcm2708-usb";
to:
  compatible = "brcm,bcm2708-usb", "brcm,bcm2835-usb";

The reason we require this is because the official DT published by the Raspberry
Pi Foundation (https://github.com/raspberrypi/firmware/tree/master/boot) only
lists "brcm,bcm2708-usb" as a compatible property, and some Linux kernels, such
as the one used by Debian, require "bcm,bcm2835-usb" to also be listed in order
to handle USB devices.

For instance, if you don't have "bcm,bcm2835-usb", you may find that the USB
keyboards are unresponsive with the Debian installer.

Also, once this patch has been applied, we should be able to replace the Device
Tree blobs we currently have in edk2-non-osi for the RPi3 platform (that have
been manually modified to have "bcm,bcm2835-usb") with the untouched ones from
the Raspberry Pi Foundation. I will therefore send a patch to that effect once
these changes have been merged.

Pete Batard (1):
  Platform/Rpi3: Add compatible property to the "usb" Device Tree node

 Platform/RaspberryPi/RPi3/Drivers/FdtDxe/FdtDxe.c | 75 ++++++++++++++++++++
 1 file changed, 75 insertions(+)

-- 
2.21.0.windows.1