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Thu, 18 Mar 2021 04:13:50 -0700 (PDT) From: Fabio Estevam To: shawnguo@kernel.org Cc: linux-arm-kernel@lists.infradead.org, qiangqing.zhang@nxp.com, Fabio Estevam Subject: [PATCH 2/2] arm64: dts: imx8mp-evk: Improve the Ethernet PHY description Date: Thu, 18 Mar 2021 08:13:30 -0300 Message-Id: <20210318111330.305315-2-festevam@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210318111330.305315-1-festevam@gmail.com> References: <20210318111330.305315-1-festevam@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210318_114127_096747_7A9A8349 X-CRM114-Status: GOOD ( 11.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 According to the datasheet RTL8211, it must be asserted low for at least 10ms and at least 72ms "for internal circuits settling time" before accessing the PHY registers. Add properties to describe such requirements. Reported-by: Joakim Zhang Signed-off-by: Fabio Estevam --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index 7db4273cc88b..2c28e589677e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -98,6 +98,8 @@ ethphy1: ethernet-phy@1 { reg = <1>; eee-broken-1000t; reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>; + reset-assert-us = <10000>; + reset-deassert-us = <80000>; }; }; }; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel