From: Stefan Agner <stefan@agner.ch>
To: khilman@baylibre.com
Cc: robh+dt@kernel.org, narmstrong@baylibre.com,
jbrunet@baylibre.com, martin.blumenstingl@googlemail.com,
christianshewitt@gmail.com, jian.hu@amlogic.com,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
Stefan Agner <stefan@agner.ch>
Subject: [PATCH v2 5/5] arm64: dts: meson: g12b: w400: fix PHY deassert timing requirements
Date: Tue, 1 Dec 2020 14:21:41 +0100 [thread overview]
Message-ID: <a899168379ce425b35eea4a369504fd75977bd71.1606828668.git.stefan@agner.ch> (raw)
In-Reply-To: <14754fd95378b78eb9a0a3f8b6bab13f7263c7f1.1606828668.git.stefan@agner.ch>
According to the datasheet (Rev. 1.9) the RTL8211F requires at least
72ms "for internal circuits settling time" before accessing the PHY
egisters. On similar boards with the same PHY this fixes an issue where
Ethernet link would not come up when using ip link set down/up.
Fixes: 2cd2310fca4c ("arm64: dts: meson-g12b-ugoos-am6: add initial device-tree")
Signed-off-by: Stefan Agner <stefan@agner.ch>
---
arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
index 2802ddbb83ac..feb088504740 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
@@ -264,7 +264,7 @@ external_phy: ethernet-phy@0 {
max-speed = <1000>;
reset-assert-us = <10000>;
- reset-deassert-us = <30000>;
+ reset-deassert-us = <80000>;
reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
interrupt-parent = <&gpio_intc>;
--
2.29.2
next prev parent reply other threads:[~2020-12-01 13:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-01 13:21 [PATCH v2 1/5] arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements Stefan Agner
2020-12-01 13:21 ` [PATCH v2 2/5] arm64: dts: meson: " Stefan Agner
2020-12-05 13:14 ` Martin Blumenstingl
2020-12-01 13:21 ` [PATCH v2 3/5] ARM: " Stefan Agner
2020-12-05 13:04 ` Martin Blumenstingl
2020-12-07 17:53 ` Stefan Agner
2020-12-01 13:21 ` [PATCH v2 4/5] arm64: dts: meson: g12a: x96-max: " Stefan Agner
2020-12-05 13:14 ` Martin Blumenstingl
2020-12-01 13:21 ` Stefan Agner [this message]
2020-12-05 13:14 ` [PATCH v2 5/5] arm64: dts: meson: g12b: w400: " Martin Blumenstingl
2020-12-05 13:14 ` [PATCH v2 1/5] arm64: dts: meson: g12b: odroid-n2: " Martin Blumenstingl
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