From: Fabio Estevam <festevam@gmail.com>
To: shawnguo@kernel.org
Cc: smoch@web.de, Fabio Estevam <festevam@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] ARM: dts: imx6q-tbs2910: Pass phy-reset-duration
Date: Thu, 25 Jun 2020 08:18:45 -0300 [thread overview]
Message-ID: <20200625111846.9507-1-festevam@gmail.com> (raw)
According to the AR8035 datasheet:
"When using crystal, the clock is generated internally after power is
stable. 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."
Pass the 'phy-reset-duration' property to meet such requirement.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- None.
arch/arm/boot/dts/imx6q-tbs2910.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/imx6q-tbs2910.dts b/arch/arm/boot/dts/imx6q-tbs2910.dts
index bfff87ce2e1f..7b03b2787430 100644
--- a/arch/arm/boot/dts/imx6q-tbs2910.dts
+++ b/arch/arm/boot/dts/imx6q-tbs2910.dts
@@ -100,6 +100,7 @@
pinctrl-0 = <&pinctrl_enet>;
phy-mode = "rgmii-id";
phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
+ phy-reset-duration = <10>;
status = "okay";
};
--
2.17.1
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next reply other threads:[~2020-06-25 11:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 11:18 Fabio Estevam [this message]
2020-06-25 11:18 ` [PATCH v2 2/2] ARM: dts: imx6q-tbs2910: Add an mdio node Fabio Estevam
2020-06-25 16:29 ` Soeren Moch
2020-07-13 1:18 ` Shawn Guo
2020-06-25 16:29 ` [PATCH v2 1/2] ARM: dts: imx6q-tbs2910: Pass phy-reset-duration Soeren Moch
2020-07-13 1:19 ` Shawn Guo
2020-07-13 13:10 ` Fabio Estevam
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