linux-kernel - [PATCH 3/6] arm64: dts: ti: k3-j7200-main.dtsi: Add USB to SERDES lane MUX

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Message-ID: <20200907103810.9870-4-rogerq@ti.com>
Date:   Mon, 7 Sep 2020 13:38:07 +0300
From:   Roger Quadros <rogerq@...com>
To:     <t-kristo@...com>, <nm@...com>
CC:     <robh+dt@...nel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <nsekhar@...com>,
        <kishon@...com>, Roger Quadros <rogerq@...com>
Subject: [PATCH 3/6] arm64: dts: ti: k3-j7200-main.dtsi: Add USB to SERDES lane MUX

The USB controller can be connected to one of the 2 lanes
of SERDES0 using a MUX. Add a MUX controller node for that.

Signed-off-by: Roger Quadros <rogerq@...com>
---
 arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index 9ae2c5515852..e08839306ec9 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -31,6 +31,12 @@
 			mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
 					<0x4088 0x3>, <0x408c 0x3>; /* SERDES0 lane2/3 select */
 		};
+
+		usb_serdes_mux: mux-controller@...0 {
+			compatible = "mmio-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x4000 0x8000000>; /* USB0 to SERDES0 lane 1/3 mux */
+		};
 	};
 
 	gic500: interrupt-controller@...0000 {
-- 
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