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From: Herve Codina <herve.codina@bootlin.com>
To: Luca Ceresoli <luca.ceresoli@bootlin.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Doug Anderson <dianders@chromium.org>,
	Chen-Yu Tsai <wenst@chromium.org>,
	Matt Coster <Matt.Coster@imgtec.com>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Maxime Chevallier <maxime.chevallier@bootlin.com>,
	Rob Herring <robh@kernel.org>, Conor Dooley <conor@kernel.org>,
	Saravana Kannan <saravanak@google.com>,
	linux-kernel@vger.kernel.org
Subject: Re: Hotplug hardware with (un)loadable DT overlays - unconference meeting notes
Date: Tue, 30 Apr 2024 10:51:30 +0200	[thread overview]
Message-ID: <20240430105130.11725e1e@bootlin.com> (raw)
In-Reply-To: <20240426115141.201f257a@booty>

Hi,

On Fri, 26 Apr 2024 11:51:41 +0200
Luca Ceresoli <luca.ceresoli@bootlin.com> wrote:

...

> One use case is for the LAN966x, a classic SoC that can be however be
> started in "endpoint mode", i.e. with the CPU cores deactivated and a
> PCI endpoint that allows an external CPU to access all the peripherals
> over PCIe. In practice the whole SoC would be used as a peripheral chip
> providing lots of devices for another SoC where the OS runs. This use
> case has been described by Rob Herring and Lizhi Hou at LPC 2023 [4][5].
> 

FYI, I sent upstream the first iteration of the series adding minimal
support the LAN966x PCI device driver.
  https://lore.kernel.org/lkml/20240430083730.134918-1-herve.codina@bootlin.com/

This driver binds on the LAN996x PCI VID/PID, and when probed, loads a DT
overlay to instantiates all internal devices re-using all existing drivers
with no change.

Best regards,
Hervé

  reply	other threads:[~2024-04-30  8:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-26  9:51 Hotplug hardware with (un)loadable DT overlays - unconference meeting notes Luca Ceresoli
2024-04-30  8:51 ` Herve Codina [this message]
2024-05-10  7:31 ` Luca Ceresoli

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