linux-kernel - [PATCH] ARM: dts: NSP: MX65: add qca8k falling-edge, PLL properties

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Date:   Fri, 15 Oct 2021 23:50:22 +0100
From:   Matthew Hagan <mnhagan88@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Matthew Hagan <mnhagan88@...il.com>,
        Rob Herring <robh+dt@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: dts: NSP: MX65: add qca8k falling-edge, PLL properties

This patch enables two properties for the QCA8337 switches on the MX65.

Set the SGMII transmit clock to falling edge
"qca,sgmii-txclk-falling-edge" to conform to the OEM configuration [1].

The new explicit PLL enable option "qca,sgmii-enable-pll" is required
[2].

[1] https://git.kernel.org/netdev/net-next/c/6c43809bf1be
[2] https://git.kernel.org/netdev/net-next/c/bbc4799e8bb6

Signed-off-by: Matthew Hagan <mnhagan88@...il.com>
---
 arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi b/arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi
index 102acd85fab2..ba01054a76cf 100644
--- a/arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi
+++ b/arch/arm/boot/dts/bcm958625-meraki-alamo.dtsi
@@ -118,6 +118,8 @@ port@0 {
 						reg = <0>;
 						ethernet = <&sgmii1>;
 						phy-mode = "sgmii";
+						qca,sgmii-enable-pll;
+						qca,sgmii-txclk-falling-edge;
 						fixed-link {
 							speed = <1000>;
 							full-duplex;
@@ -194,6 +196,8 @@ port@0 {
 						reg = <0>;
 						ethernet = <&sgmii0>;
 						phy-mode = "sgmii";
+						qca,sgmii-enable-pll;
+						qca,sgmii-txclk-falling-edge;
 						fixed-link {
 							speed = <1000>;
 							full-duplex;
-- 
2.27.0