clocksource/drivers/arm_arch_timer: Work around broken CVAL implementations

mainline inclusion
from mainline-v5.16-rc1
commit 012f1885
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4QCBG


CVE: NA

----------------------

The Applied Micro XGene-1 SoC has a busted implementation of the
CVAL register: it looks like it is based on TVAL instead of the
other way around. The net effect of this implementation blunder
is that the maximum deadline you can program in the timer is
32bit wide.

Use a MIDR check to notice the broken CPU, and reduce the width
of the timer to 32bit.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211017124225.3018098-10-maz@kernel.org


Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>