From: festevam@gmail.com (Fabio Estevam)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] ARM: dts: imx6qdl-microsom-ar8035: Adjust Ethernet PHY reset duration
Date: Mon, 4 Jan 2016 17:11:40 -0200 [thread overview]
Message-ID: <1451934700-28060-2-git-send-email-festevam@gmail.com> (raw)
In-Reply-To: <1451934700-28060-1-git-send-email-festevam@gmail.com>
From: Fabio Estevam <fabio.estevam@nxp.com>
As per the AR8035 datasheet:
"For a reliable power on reset, suggest to keep asserting the reset
low long enough (10ms) to ensure the clock is stable and clock-to-reset
1ms requirement is satisfied."
So do as suggested and keep the reset low for 10ms.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
---
arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi b/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi
index 469ef58..d187177 100644
--- a/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-microsom-ar8035.dtsi
@@ -45,7 +45,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_microsom_enet_ar8035>;
phy-mode = "rgmii";
- phy-reset-duration = <2>;
+ phy-reset-duration = <10>;
phy-reset-gpios = <&gpio4 15 0>;
status = "okay";
};
--
1.9.1
next prev parent reply other threads:[~2016-01-04 19:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-04 19:11 [PATCH 1/2] ARM: dts: imx6qdl-sabresd: Pass 'phy-reset-duration' property Fabio Estevam
2016-01-04 19:11 ` Fabio Estevam [this message]
2016-01-04 22:42 ` [PATCH 2/2] ARM: dts: imx6qdl-microsom-ar8035: Adjust Ethernet PHY reset duration Russell King - ARM Linux
2016-01-05 12:23 ` Fabio Estevam
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