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Message-ID: <20190920053817.13754-5-christophe.roullier@st.com>
Date: Fri, 20 Sep 2019 07:38:16 +0200
From: Christophe Roullier <christophe.roullier@...com>
To: <robh@...nel.org>, <davem@...emloft.net>, <joabreu@...opsys.com>,
<mark.rutland@....com>, <mcoquelin.stm32@...il.com>,
<alexandre.torgue@...com>, <peppe.cavallaro@...com>
CC: <linux-stm32@...md-mailman.stormreply.com>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <netdev@...r.kernel.org>,
<christophe.roullier@...com>, <andrew@...n.ch>
Subject: [PATCH 4/5] ARM: dts: stm32: adjust slew rate for Ethernet
ETH_MDIO slew-rate should be set to "0" instead of "2"
Signed-off-by: Christophe Roullier <christophe.roullier@...com>
---
arch/arm/boot/dts/stm32mp157-pinctrl.dtsi | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
index df6470133574..7667fe758957 100644
--- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi
@@ -239,13 +239,18 @@
<STM32_PINMUX('C', 2, AF11)>, /* ETH_RGMII_TXD2 */
<STM32_PINMUX('E', 2, AF11)>, /* ETH_RGMII_TXD3 */
<STM32_PINMUX('B', 11, AF11)>, /* ETH_RGMII_TX_CTL */
- <STM32_PINMUX('A', 2, AF11)>, /* ETH_MDIO */
<STM32_PINMUX('C', 1, AF11)>; /* ETH_MDC */
bias-disable;
drive-push-pull;
- slew-rate = <3>;
+ slew-rate = <2>;
};
pins2 {
+ pinmux = <STM32_PINMUX('A', 2, AF11)>; /* ETH_MDIO */
+ bias-disable;
+ drive-push-pull;
+ slew-rate = <0>;
+ };
+ pins3 {
pinmux = <STM32_PINMUX('C', 4, AF11)>, /* ETH_RGMII_RXD0 */
<STM32_PINMUX('C', 5, AF11)>, /* ETH_RGMII_RXD1 */
<STM32_PINMUX('B', 0, AF11)>, /* ETH_RGMII_RXD2 */
--
2.17.1
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