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From: "Jernej Škrabec" <jernej.skrabec@gmail.com>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S . Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Andre Przywara <andre.przywara@arm.com>
Cc: Chen-Yu Tsai <wens@csie.org>,
	Samuel Holland <samuel@sholland.org>,
	Corentin Labbe <clabbe.montjoie@gmail.com>,
	Yixun Lan <dlan@gentoo.org>, Maxime Ripard <mripard@kernel.org>,
	netdev@vger.kernel.org, linux-sunxi@lists.linux.dev,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH net-next] net: stmmac: sun8i: drop unneeded default syscon value
Date: Thu, 24 Apr 2025 20:39:44 +0200	[thread overview]
Message-ID: <4974609.GXAFRqVoOG@jernej-laptop> (raw)
In-Reply-To: <20250423095222.1517507-1-andre.przywara@arm.com>

Dne sreda, 23. april 2025 ob 11:52:22 Srednjeevropski poletni čas je Andre Przywara napisal(a):
> For some odd reason we are very picky about the value of the EMAC clock
> register from the syscon block, insisting on a certain reset value and
> only doing read-modify-write operations on that register, even though we
> pretty much know the register layout.
> This already led to a basically redundant variant entry for the H6, which
> only differs by that value. We will have the same situation with the new
> A523 SoC, which again is compatible to the A64, but has a different syscon
> reset value.
> 
> Drop any assumptions about that value, and set or clear the bits that we
> want to program, from scratch (starting with a value of 0). For the
> remove() implementation, we just turn on the POWERDOWN bit, and deselect
> the internal PHY, which mimics the existing code.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>

Thanks for doing that!

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej



  parent reply	other threads:[~2025-04-24 18:39 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-23  9:52 [RFC PATCH net-next] net: stmmac: sun8i: drop unneeded default syscon value Andre Przywara
2025-04-23 10:06 ` Corentin Labbe
2025-04-24 18:39 ` Jernej Škrabec [this message]
2025-04-24 18:46 ` Corentin Labbe
2025-06-27 16:08 ` Paul Kocialkowski

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