netdev - Re: [PATCH net-next 1/3] net: phy: mediatek: Add token ring access helper functions in mtk-phy-lib

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Message-ID: <64b70b2d-b9b6-4925-b3f6-f570ddb70e95@lunn.ch>
Date: Thu, 13 Feb 2025 14:29:35 +0100
From: Andrew Lunn <andrew@...n.ch>
To: SkyLake Huang (黃啟澤) <SkyLake.Huang@...iatek.com>
Cc: "dqfext@...il.com" <dqfext@...il.com>,
	Steven Liu (劉人豪) <steven.liu@...iatek.com>,
	"davem@...emloft.net" <davem@...emloft.net>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	"linux@...linux.org.uk" <linux@...linux.org.uk>,
	"hkallweit1@...il.com" <hkallweit1@...il.com>,
	"horms@...nel.org" <horms@...nel.org>,
	"daniel@...rotopia.org" <daniel@...rotopia.org>,
	"pabeni@...hat.com" <pabeni@...hat.com>,
	"kuba@...nel.org" <kuba@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"matthias.bgg@...il.com" <matthias.bgg@...il.com>
Subject: Re: [PATCH net-next 1/3] net: phy: mediatek: Add token ring access
 helper functions in mtk-phy-lib

On Thu, Feb 13, 2025 at 07:39:39AM +0000, SkyLake Huang (黃啟澤) wrote:
> On Sun, 2025-01-19 at 18:12 +0100, Andrew Lunn wrote:
> > 
> > External email : Please do not click links or open attachments until
> > you have verified the sender or the content.
> > 
> > 
> > > +/* ch_addr = 0x1, node_addr = 0xf, data_addr = 0x1 */
> > > +/* MrvlTrFix100Kp */
> > > +#define MRVL_TR_FIX_100KP_MASK                       GENMASK(22,
> > > 20)
> > > +/* MrvlTrFix100Kf */
> > > +#define MRVL_TR_FIX_100KF_MASK                       GENMASK(19,
> > > 17)
> > > +/* MrvlTrFix1000Kp */
> > > +#define MRVL_TR_FIX_1000KP_MASK                      GENMASK(16,
> > > 14)
> > > +/* MrvlTrFix1000Kf */
> > > +#define MRVL_TR_FIX_1000KF_MASK                      GENMASK(13,
> > > 11)
> > 
> > What does the Mrvl prefix stand for?
> > 
> > This patch is pretty much impossible to review because it makes so
> > many changes. Please split it up into lots of small simple changes.
> > 
> >     Andrew
> > 
> > ---
> > pw-bot: cr
> Those registers with Mrvl* prefix were originally designed for
> connection with certain Marvell devices. It's our DSP parameters.

Will this code work with real Marvell devices? Is this PHY actually
licensed from Marvell?

	Andrew