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From: Andrew Lunn <andrew@lunn.ch>
To: Daniel Golle <daniel@makrotopia.org>
Cc: Vladimir Oltean <olteanv@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Simon Horman <horms@kernel.org>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH RFC net-next 2/3] net: dsa: mxl862xx: add SMDIO clause-22 register access
Date: Wed, 8 Jul 2026 19:22:49 +0200	[thread overview]
Message-ID: <96c362d3-59d2-43c4-b2aa-c12dfeb6fcca@lunn.ch> (raw)
In-Reply-To: <ak0KJ6gUk2l_IwoI@makrotopia.org>

On Tue, Jul 07, 2026 at 04:16:07PM +0200, Daniel Golle wrote:
> Add mxl862xx_smdio_read() and mxl862xx_smdio_write() for clause-22
> SMDIO register access. MCUboot rescue mode only exposes clause-22
> registers; the existing clause-45 MMD interface is unavailable during
> firmware transfer. The MDIO bus lock is held per-transaction (not
> across polls) so that SB PDI polling during flash erase does not
> starve other MDIO users.

What other MDIO users are there? It sounds like once the switch is in
rescue mode, switch management is dead. So how can there be users?

       Andrew

  reply	other threads:[~2026-07-08 17:23 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-07 14:16 [PATCH RFC net-next 2/3] net: dsa: mxl862xx: add SMDIO clause-22 register access Daniel Golle
2026-07-08 17:22 ` Andrew Lunn [this message]
2026-07-08 19:45   ` Daniel Golle
2026-07-08 23:15     ` Andrew Lunn
2026-07-09  9:44       ` Daniel Golle

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