linux-kernel - [PATCH] arm64: dts: ti: k3-am625: Add PRUSS-M node

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Message-ID: <20250108222048.818835-1-jm@ti.com>
Date: Wed, 8 Jan 2025 16:20:48 -0600
From: Judith Mendez <jm@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>
CC: Tero Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] arm64: dts: ti: k3-am625: Add PRUSS-M node

From: Kishon Vijay Abraham I <kishon@...com>

Add the DT node for the PRUSS-M processor subsystem that is present
on the K3 AM62x SoCs. The K3 AM62x family of SoC has one PRUSS-M
instance and it has two Programmable Real-Time Units (PRU0 and PRU1).

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Signed-off-by: Hari Nagalla <hnagalla@...com>
[ Judith: Fix pruss_iclk id for pruss_coreclk_mux ]
Signed-off-by: Judith Mendez <jm@...com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 90 ++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 7d355aa73ea21..ee53e663b5bdb 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -1079,6 +1079,96 @@ dphy0: phy@...10000 {
 		status = "disabled";
 	};
 
+	pruss: pruss@...40000 {
+		compatible = "ti,am625-pruss";
+		reg = <0x00 0x30040000 0x00 0x80000>;
+		power-domains = <&k3_pds 81 TI_SCI_PD_EXCLUSIVE>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x00 0x30040000 0x80000>;
+
+		pruss_mem: memories@0 {
+			reg = <0x0 0x2000>,
+			      <0x2000 0x2000>,
+			      <0x10000 0x10000>;
+			reg-names = "dram0", "dram1", "shrdram2";
+		};
+
+		pruss_cfg: cfg@...00 {
+			compatible = "ti,pruss-cfg", "syscon";
+			reg = <0x26000 0x200>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x26000 0x2000>;
+
+			clocks {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				pruss_coreclk_mux: coreclk-mux@3c {
+					reg = <0x3c>;
+					#clock-cells = <0>;
+					clocks = <&k3_clks 81 0>,  /* pruss_core_clk */
+						 <&k3_clks 81 14>; /* pruss_iclk */
+					assigned-clocks = <&pruss_coreclk_mux>;
+					assigned-clock-parents = <&k3_clks 81 14>;
+				};
+
+				pruss_iepclk_mux: iepclk-mux@30 {
+					reg = <0x30>;
+					#clock-cells = <0>;
+					clocks = <&k3_clks 81 3>,	/* pruss_iep_clk */
+						 <&pruss_coreclk_mux>;	/* pruss_coreclk_mux */
+					assigned-clocks = <&pruss_iepclk_mux>;
+					assigned-clock-parents = <&pruss_coreclk_mux>;
+				};
+			};
+		};
+
+		pruss_intc: interrupt-controller@...00 {
+			compatible = "ti,pruss-intc";
+			reg = <0x20000 0x2000>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "host_intr0", "host_intr1",
+					  "host_intr2", "host_intr3",
+					  "host_intr4", "host_intr5",
+					  "host_intr6", "host_intr7";
+		};
+
+		pru0: pru@...00 {
+			compatible = "ti,am625-pru";
+			reg = <0x34000 0x3000>,
+			      <0x22000 0x100>,
+			      <0x22400 0x100>;
+			reg-names = "iram", "control", "debug";
+			firmware-name = "am62x-pru0-fw";
+			interrupt-parent = <&pruss_intc>;
+			interrupts = <16 2 2>;
+			interrupt-names = "vring";
+		};
+
+		pru1: pru@...00 {
+			compatible = "ti,am625-pru";
+			reg = <0x38000 0x3000>,
+			      <0x24000 0x100>,
+			      <0x24400 0x100>;
+			reg-names = "iram", "control", "debug";
+			firmware-name = "am62x-pru1-fw";
+			interrupt-parent = <&pruss_intc>;
+			interrupts = <18 3 3>;
+			interrupt-names = "vring";
+		};
+	};
+
 	gpmc0: memory-controller@...00000 {
 		compatible = "ti,am64-gpmc";
 		power-domains = <&k3_pds 80 TI_SCI_PD_EXCLUSIVE>;
-- 
2.47.1