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Wed, 15 Jul 2020 13:33:19 -0700 (PDT) Received: from xps15 ([64.188.179.252]) by smtp.gmail.com with ESMTPSA id s17sm1692774ioj.10.2020.07.15.13.33.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jul 2020 13:33:18 -0700 (PDT) Received: (nullmailer pid 771217 invoked by uid 1000); Wed, 15 Jul 2020 20:33:17 -0000 Date: Wed, 15 Jul 2020 14:33:17 -0600 From: Rob Herring To: Russell King Subject: Re: [PATCH 1/2] dt: update Marvell Armada 38x COMPHY binding Message-ID: <20200715203317.GA771166@bogus> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200715_163320_314162_565D20D6 X-CRM114-Status: GOOD ( 15.54 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jason Cooper , Andrew Lunn , Gregory Clement , Kishon Vijay Abraham I , Vinod Koul , Rob Herring , linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 30 Jun 2020 17:05:33 +0100, Russell King wrote: > Update the Marvell Armada 38x COMPHY binding with an additional > optional register pair describing the location of an undocumented > system register controlling something to do with the Gigabit Ethernet > and COMPHY. There is one bit for each COMPHY lane that may be using > the serdes, but exactly what this register does is completely unknown. > > This register only appears to exist on Armada 38x devices, and not > other SoCs using the NETA ethernet block, so it seems logical that it > should be part of the COMPHY. > > This is also how u-boot groups this register; it is dealt with as part > of the COMPHY initialisation there. > > However, at the end of the day, due to the undocumented nature of this > register, we can only guess. > > Signed-off-by: Russell King > --- > .../devicetree/bindings/phy/phy-armada38x-comphy.txt | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > Acked-by: Rob Herring _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel