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: 16+ 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
2025-09-11 18:28 ` [PATCH v2 4/4] arm64: dts: marvell: cn9130-sr-som: add missing properties to emmc Josua Mayer
2025-09-12 12:59 ` Gregory CLEMENT
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