linux-kernel - [PATCH 1/3] arm64: dts: ti: k3-am64-main: Add ICSSG IEP nodes

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Date:   Thu, 7 Dec 2023 13:49:15 +0530
From:   MD Danish Anwar <danishanwar@...com>
To:     Vignesh Raghavendra <vigneshr@...com>, Nishanth Menon <nm@...com>
CC:     Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tero Kristo <kristo@...nel.org>, <srk@...com>,
        <r-gunasekaran@...com>, Suman Anna <s-anna@...com>,
        "Grygorii Strashko" <grygorii.strashko@...com>,
        MD Danish Anwar <danishanwar@...com>
Subject: [PATCH 1/3] arm64: dts: ti: k3-am64-main: Add ICSSG IEP nodes

From: Suman Anna <s-anna@...com>

The ICSSG IP on AM64x SoCs have two Industrial Ethernet Peripherals (IEPs)
to manage/generate Industrial Ethernet functions such as time stamping.
Each IEP sub-module is sourced from an internal clock mux that can be
derived from either of the IP instance's ICSSG_IEP_GCLK or from another
internal ICSSG CORE_CLK mux. Add both the IEP nodes for both the ICSSG
instances. The IEP clock is currently configured to be derived
indirectly from the ICSSG_ICLK running at 250 MHz.

Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
Signed-off-by: Suman Anna <s-anna@...com>
Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index c7be378492e2..055f6e3657c2 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -1234,6 +1234,18 @@ icssg0_iepclk_mux: iepclk-mux@30 {
 			};
 		};
 
+		icssg0_iep0: iep@...00 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2e000 0x1000>;
+			clocks = <&icssg0_iepclk_mux>;
+		};
+
+		icssg0_iep1: iep@...00 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2f000 0x1000>;
+			clocks = <&icssg0_iepclk_mux>;
+		};
+
 		icssg0_mii_rt: mii-rt@...00 {
 			compatible = "ti,pruss-mii", "syscon";
 			reg = <0x32000 0x100>;
@@ -1375,6 +1387,18 @@ icssg1_iepclk_mux: iepclk-mux@30 {
 			};
 		};
 
+		icssg1_iep0: iep@...00 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2e000 0x1000>;
+			clocks = <&icssg1_iepclk_mux>;
+		};
+
+		icssg1_iep1: iep@...00 {
+			compatible = "ti,am654-icss-iep";
+			reg = <0x2f000 0x1000>;
+			clocks = <&icssg1_iepclk_mux>;
+		};
+
 		icssg1_mii_rt: mii-rt@...00 {
 			compatible = "ti,pruss-mii", "syscon";
 			reg = <0x32000 0x100>;
-- 
2.34.1