Date: Thu, 15 Mar 2018 07:17:49 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Hannes Reinecke <hare@suse.de>,
        David Howells <dhowells@redhat.com>,
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Subject: Re: [PATCH 00/16] remove eight obsolete architectures
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On Thu, Mar 15, 2018 at 11:42:25AM +0100, Arnd Bergmann wrote:
> Is anyone producing a chip that includes enough of the Privileged ISA spec
> to have things like system calls, but not the MMU parts?

Various SiFive SOCs seem to support M and U mode, but no S mode or
iommu.  That should be enough for nommu Linux running in M mode if
someone cares enough to actually port it.