The current selection of the reference MTIMER may fail in some setup.
In a multi-cluster configuration, there is one MTIMER per cluster, each
associated with the HARTS of the cluster. So we do not have a MTIMER
with no associated HARTs to use as our reference.
To be able to select a reference MTIMER in that case, look up an optional
device tree property named "riscv,reference-mtimer" that indicate which
MTIMER is the reference.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20251107-p8700-aclint-v3-1-93eabb17d54e@bootlin.com
Signed-off-by: Anup Patel <anup@brainfault.org>
