From: Josua Mayer <josua@solid-run.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Frank Wunderlich <frank-w@public-files.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH v2 3/4] arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports
Date: Thu, 18 Sep 2025 10:46:03 +0000 [thread overview]
Message-ID: <dbb10e82-ae10-4987-900b-17d4f4b62099@solid-run.com> (raw)
In-Reply-To: <9272b233-b710-4e57-b3ff-735f45c03c74@lunn.ch>
Am 12.09.25 um 00:12 schrieb Andrew Lunn:
> On Thu, Sep 11, 2025 at 08:28:06PM +0200, Josua Mayer wrote:
>> The mvebu-comphy driver does not currently know how to pass correct
>> lane-count to ATF while configuring the serdes lanes.
>>
>> This causes the system to hard reset during reconfiguration, if a pci
>> card is present and has established a link during bootloader.
>>
>> Remove the comphy handles from the respective pci nodes to avoid runtime
>> reconfiguration, relying solely on bootloader configuration - while
>> avoiding the hard reset.
>>
>> When bootloader has configured the lanes correctly, the pci ports are
>> functional under Linux.
> Does this require a specific bootloader? Can i use mainline grub or
> bareboot?
In this case it means U-Boot, i.e. before one would start grub.
I am never quite sure if in this situation I should say "firmware" instead ...
next prev parent reply other threads:[~2025-09-18 10:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-11 18:28 [PATCH v2 0/4] arm64: dts: marvell: cn913x-solidrun: fix sata ports status Josua Mayer
2025-09-11 18:28 ` [PATCH v2 1/4] " Josua Mayer
2025-09-12 12:56 ` Gregory CLEMENT
2025-09-11 18:28 ` [PATCH v2 2/4] arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes Josua Mayer
2025-09-12 12:57 ` Gregory CLEMENT
2025-09-11 18:28 ` [PATCH v2 3/4] arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports Josua Mayer
2025-09-11 22:12 ` Andrew Lunn
2025-09-18 10:46 ` Josua Mayer [this message]
2025-09-18 14:09 ` Andrew Lunn
2025-09-18 14:18 ` Josua Mayer
2025-09-18 15:41 ` Andrew Lunn
2025-09-18 17:40 ` Josua Mayer
2025-10-24 21:36 ` Josua Mayer
2025-09-12 12:58 ` Gregory CLEMENT
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=dbb10e82-ae10-4987-900b-17d4f4b62099@solid-run.com \
--to=josua@solid-run.com \
--cc=andrew@lunn.ch \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=frank-w@public-files.de \
--cc=gregory.clement@bootlin.com \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh@kernel.org \
--cc=sebastian.hesselbarth@gmail.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox