hw/intc: sifive_plic: fix hard-coded max priority level
The maximum priority level is hard-coded when writing to interrupt
priority register. However, when writing to priority threshold register,
the maximum priority level is from num_priorities Property which is
configured by platform.
Also change interrupt priority register to use num_priorities Property
in maximum priority level.
Signed-off-by: Emmanuel Blot <emmanuel.blot@sifive.com>
Signed-off-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <
20221003041440.2320-2-jim.shu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>