zhangyuan21 c6f32f4363 arm-m: Check the dcache status before enabling dcache
If the cache is already enabled before NuttX starts up,
enabling the cache in NuttX will cause the cache to be
re-invalidated, then resulting in data that is already
in the cache being flushed out.

Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
2023-07-31 08:49:21 +02:00
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