From: Andrew Lunn <andrew@lunn.ch>
To: Josua Mayer <josua@solid-run.com>
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, devicetree@vger.kernel.org,
linux-kernel@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: Fri, 12 Sep 2025 00:12:48 +0200 [thread overview]
Message-ID: <9272b233-b710-4e57-b3ff-735f45c03c74@lunn.ch> (raw)
In-Reply-To: <20250911-cn913x-sr-fix-sata-v2-3-0d79319105f8@solid-run.com>
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?
Andrew
next prev parent reply other threads:[~2025-09-11 22:12 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 [this message]
2025-09-18 10:46 ` Josua Mayer
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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