tree e66cd1918e11c8d12212ef15b6ccdceec39d90f5
parent 93b785f5ae66a6418581c304c83a346e8baa5aa3
author Andre Przywara <andre.przywara@arm.com> 1626807938 +0100
committer Andre Przywara <andre.przywara@arm.com> 1636041514 +0000

feat(arm_fpga): add ITS autodetection

Some FPGAs come with a GIC that has an ITS block configured. Since the
ITS sits between the distributor and redistributors, we can autodetect
that, and already adjust the GICR base address.

To also make this ITS usable, add an ITS node to our base DTB, and
remove that should we not find an ITS during the scan for the
redistributor. This allows to use the same TF-A binary for FPGA images
with or without an ITS.

Change-Id: I4c0417dec7bccdbad8cbca26fa2634950fc50a66
Signed-off-by: Andre Przywara <andre.przywara@arm.com>