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From:   Christoph Hellwig <hch@lst.de>
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Subject: Re: [PATCH 03/11] dt-bindings: interrupt-controller: RISC-V PLIC
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On Thu, Aug 02, 2018 at 03:08:15PM -0700, Atish Patra wrote:
> The one in the real device tree has two entries.
> reg = <0x00000000 0x0c000000 0x00000000 0x04000000>;
>
> Is it intentional or just incorrect entry left over from earlier days?

I'll need to SiFive folks to comment on that.  The driver itself uses
of_iomap, which as far as I can tell only needs two entries.