From: Fabio Estevam <festevam@gmail.com>
To: shawnguo@kernel.org
Cc: linux-arm-kernel@lists.infradead.org, qiangqing.zhang@nxp.com,
Fabio Estevam <festevam@gmail.com>
Subject: [PATCH 2/2] arm64: dts: imx8mp-evk: Improve the Ethernet PHY description
Date: Thu, 18 Mar 2021 08:13:30 -0300 [thread overview]
Message-ID: <20210318111330.305315-2-festevam@gmail.com> (raw)
In-Reply-To: <20210318111330.305315-1-festevam@gmail.com>
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 <qiangqing.zhang@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
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
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next prev parent reply other threads:[~2021-03-18 11:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-18 11:13 [PATCH 1/2] arm64: configs: Select REALTEK_PHY as built-in Fabio Estevam
2021-03-18 11:13 ` Fabio Estevam [this message]
2021-03-18 12:14 ` Joakim Zhang
2021-03-29 1:03 ` Shawn Guo
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