From: Nishanth Menon <nm@ti.com>
To: Wadim Egorov <w.egorov@phytec.de>
Cc: Garrett Giordano <ggiordano@phytec.com>, <vigneshr@ti.com>,
<kristo@kernel.org>, <robh+dt@kernel.org>,
<krzysztof.kozlowski+dt@linaro.org>, <conor+dt@kernel.org>,
<r-gunasekaran@ti.com>, <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<upstream@lists.phytec.de>
Subject: Re: [PATCH] arm64: dts: ti: phycore-am64: Add R5F DMA Region and Mailboxes
Date: Mon, 4 Dec 2023 07:44:11 -0600 [thread overview]
Message-ID: <20231204134411.jp3kgateozajxlyh@parameter> (raw)
In-Reply-To: <5effa700-480b-4030-8335-304ebc4444b7@phytec.de>
On 10:00-20231103, Wadim Egorov wrote:
> Hi Nishanth,
>
> Am 03.11.23 um 01:17 schrieb Nishanth Menon:
> > On 13:12-20231102, Garrett Giordano wrote:
> > > Communication between the R5F subsystem and Linux takes place using DMA
> > > memory regions and mailboxes. Here we add DT nodes for the memory
> > > regions and mailboxes to facilitate communication between the R5
> > > clusters and Linux as remoteproc will fail to start if no memory
> > > regions or mailboxes are provided.
> > >
> > > Fixes: c48ac0efe6d7 ("arm64: dts: ti: Add support for phyBOARD-Electra-AM642")
> > is this fixes? Sounds more or less like rproc support is added in?
>
> I would say it is also a fix, as the R5 cores are enabled by default at the
> SoC level devicetree and also require mboxes & memory regions to be
> configured. The docs mention both as mandatory.
>
> Otherwise, we will encounter errors such as
>
> platform 78000000.r5f: device does not have reserved memory regions, ret =
> -22
>
Please repost this, for some reason, the patch[1] does not appear[2] in the
archives and b4 drops out.
[1] https://lore.kernel.org/all/5effa700-480b-4030-8335-304ebc4444b7@phytec.de/
[2] https://lore.kernel.org/all/20231102201216.3771589-1-ggiordano@phytec.com/
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
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next prev parent reply other threads:[~2023-12-04 13:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20231102201216.3771589-1-ggiordano@phytec.com>
2023-11-03 0:17 ` [PATCH] arm64: dts: ti: phycore-am64: Add R5F DMA Region and Mailboxes Nishanth Menon
2023-11-03 9:00 ` Wadim Egorov
2023-12-04 13:44 ` Nishanth Menon [this message]
2023-12-04 21:23 Garrett Giordano
2023-12-05 17:26 ` Wadim Egorov
2023-12-06 16:02 ` Nishanth Menon
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