From: Phil Elwell <phil@raspberrypi.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Herve Codina <herve.codina@bootlin.com>,
Andrea della Porta <andrea.porta@suse.com>,
Arnd Bergmann <arnd@arndb.de>,
"maintainer:BROADCOM BCM7XXX ARM ARCHITECTURE"
<bcm-kernel-feedback-list@broadcom.com>,
bhelgaas@google.com, brgl@bgdev.pl,
Catalin Marinas <catalin.marinas@arm.com>,
Conor Dooley <conor+dt@kernel.org>,
derek.kiernan@amd.com, devicetree@vger.kernel.org,
dragan.cvetic@amd.com,
Florian Fainelli <florian.fainelli@broadcom.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
krzk+dt@kernel.org, kw@linux.com,
Linus Walleij <linus.walleij@linaro.org>,
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LKML <linux-kernel@vger.kernel.org>,
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Michael Turquette <mturquette@baylibre.com>,
Rob Herring <robh@kernel.org>,
saravanak@google.com, Stephen Boyd <sboyd@kernel.org>,
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Will Deacon <will@kernel.org>,
Dave Stevenson <dave.stevenson@raspberrypi.com>
Subject: Re: [PATCH v6 00/10] Add support for RaspberryPi RP1 PCI device using a DT overlay
Date: Thu, 13 Feb 2025 17:57:37 +0000 [thread overview]
Message-ID: <CAMEGJJ0QbzCScfTRA_pw_8A=iMYMAAFs69zFNLwcOxF5Syugpw@mail.gmail.com> (raw)
In-Reply-To: <821d4c74-09b0-4c1b-b8ef-f8c08d0f6b5b@lunn.ch>
On Thu, 13 Feb 2025 at 17:45, Andrew Lunn <andrew@lunn.ch> wrote:
>
> > > Or do you mean a custom board, which has a CPU, RP1 and the button and
> > > fan are directly on this custom board? You then want a board DTS which
> > > includes all these pieces?
> >
> > That depends on whether you count the Raspberry Pi 5 as a custom board.
>
> So you mean the Pi 5 board would itself make use of the resources the
> RP1 device has? They are not simply connected to headers for plugin
> boards, but used by the main board? Hence you want to describe them in
> the board .DTS file.
That's correct. But even for plug-in devices, those which are on
non-discoverable buses need overlays to declare them, which causes a
problem when the overlay application happens before the kernel is
started.
Phil
next prev parent reply other threads:[~2025-02-13 17:57 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-13 15:18 [PATCH v6 00/10] Add support for RaspberryPi RP1 PCI device using a DT overlay Phil Elwell
2025-02-13 16:14 ` Herve Codina
2025-02-13 16:26 ` Andrew Lunn
2025-02-13 16:30 ` Phil Elwell
2025-02-13 17:07 ` Herve Codina
2025-02-13 17:29 ` Phil Elwell
2025-02-13 17:50 ` Andrew Lunn
2025-02-13 18:00 ` Phil Elwell
2025-02-13 17:45 ` Andrew Lunn
2025-02-13 17:57 ` Phil Elwell [this message]
2025-02-13 18:53 ` Herve Codina
2025-02-13 20:15 ` Phil Elwell
2025-02-13 21:06 ` Herve Codina
2025-02-13 21:12 ` Phil Elwell
2025-02-17 15:53 ` Herve Codina
2025-02-17 17:03 ` Phil Elwell
2025-02-17 17:55 ` Herve Codina
2025-02-18 11:41 ` Phil Elwell
2025-02-13 16:27 ` Phil Elwell
2025-03-10 13:59 ` Andrea della Porta
2025-03-10 14:21 ` Phil Elwell
2025-03-10 16:26 ` Andrea della Porta
-- strict thread matches above, loose matches on Subject: below --
2025-01-13 14:57 Andrea della Porta
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