From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: "Pali Rohár" <pali@kernel.org>
Cc: "Marek Behún" <kabel@kernel.org>,
"Miquel Raynal" <miquel.raynal@bootlin.com>,
"Kishon Vijay Abraham I" <kishon@ti.com>,
"Vinod Koul" <vkoul@kernel.org>, "Andrew Lunn" <andrew@lunn.ch>,
"Rob Herring" <robh@kernel.org>,
linux-phy@lists.infradead.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] phy: marvell: phy-mvebu-a3700-comphy: Remove unsupported modes
Date: Fri, 27 Aug 2021 22:10:51 +0100 [thread overview]
Message-ID: <20210827211051.GW22278@shell.armlinux.org.uk> (raw)
In-Reply-To: <20210827190234.72eakdvbgojscpkm@pali>
On Fri, Aug 27, 2021 at 09:02:34PM +0200, Pali Rohár wrote:
> I think that whatever is used (firmware code, kernel code, ...), DT
> should always contains full HW description with all nodes, and not only
> some "subset". DT should be independent of current driver / firmware
> implementation.
A "full" description of the hardware settings for the comphy on Armada
8040 would be very big if we included every single setting. There are
about a thousand settings - and that is likely an under-estimate. I
know, I've a shell script that decodes around a thousand settings from
the registers for a _single_ lane, and that's incomplete.
With many of the settings not very well documented in the manual, we
would struggle to describe it sufficiently well to get it past the DT
maintainers.
So, "full hardware description" is impractical. Sorry.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
WARNING: multiple messages have this Message-ID (diff)
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: "Pali Rohár" <pali@kernel.org>
Cc: "Marek Behún" <kabel@kernel.org>,
"Miquel Raynal" <miquel.raynal@bootlin.com>,
"Kishon Vijay Abraham I" <kishon@ti.com>,
"Vinod Koul" <vkoul@kernel.org>, "Andrew Lunn" <andrew@lunn.ch>,
"Rob Herring" <robh@kernel.org>,
linux-phy@lists.infradead.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] phy: marvell: phy-mvebu-a3700-comphy: Remove unsupported modes
Date: Fri, 27 Aug 2021 22:10:51 +0100 [thread overview]
Message-ID: <20210827211051.GW22278@shell.armlinux.org.uk> (raw)
In-Reply-To: <20210827190234.72eakdvbgojscpkm@pali>
On Fri, Aug 27, 2021 at 09:02:34PM +0200, Pali Rohár wrote:
> I think that whatever is used (firmware code, kernel code, ...), DT
> should always contains full HW description with all nodes, and not only
> some "subset". DT should be independent of current driver / firmware
> implementation.
A "full" description of the hardware settings for the comphy on Armada
8040 would be very big if we included every single setting. There are
about a thousand settings - and that is likely an under-estimate. I
know, I've a shell script that decodes around a thousand settings from
the registers for a _single_ lane, and that's incomplete.
With many of the settings not very well documented in the manual, we
would struggle to describe it sufficiently well to get it past the DT
maintainers.
So, "full hardware description" is impractical. Sorry.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
next prev parent reply other threads:[~2021-08-27 21:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-27 9:27 [PATCH 1/3] phy: marvell: phy-mvebu-cp110-comphy: Rename HS-SGMMI to 2500Base-X Pali Rohár
2021-08-27 9:27 ` Pali Rohár
2021-08-27 9:27 ` [PATCH 2/3] phy: marvell: phy-mvebu-a3700-comphy: " Pali Rohár
2021-08-27 9:27 ` Pali Rohár
2021-08-27 9:27 ` [PATCH 3/3] phy: marvell: phy-mvebu-a3700-comphy: Remove unsupported modes Pali Rohár
2021-08-27 9:27 ` Pali Rohár
2021-08-27 11:27 ` Marek Behún
2021-08-27 11:27 ` Marek Behún
2021-08-27 18:25 ` Pali Rohár
2021-08-27 18:25 ` Pali Rohár
2021-08-27 18:33 ` Russell King (Oracle)
2021-08-27 18:33 ` Russell King (Oracle)
2021-08-27 19:02 ` Pali Rohár
2021-08-27 19:02 ` Pali Rohár
2021-08-27 21:10 ` Russell King (Oracle) [this message]
2021-08-27 21:10 ` Russell King (Oracle)
2021-08-27 11:30 ` [PATCH 1/3] phy: marvell: phy-mvebu-cp110-comphy: Rename HS-SGMMI to 2500Base-X patchwork-bot+netdevbpf
2021-08-27 11:30 ` patchwork-bot+netdevbpf
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