linux-kernel - [PATCH 1/2] arm64: dts: ti: k3-am62a: Add remote proc nodes

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Date:   Tue, 2 May 2023 09:14:15 -0500
From:   Hari Nagalla <hnagalla@...com>
To:     <nm@...com>, <vigneshr@...com>
CC:     <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] arm64: dts: ti: k3-am62a: Add remote proc nodes

AM62A SoC devices have a C7x DSP in main voltage domain and two single
core R5F processors in MCU and Wakeup domains respectively. The C7x
DSP subsystem has various accelerators for Deep learning purposes. The
R5F processor in wakeup domain is used as a device manager for the SoC.

Signed-off-by: Jai Luthra <j-luthra@...com>
Signed-off-by: Devarsh Thakkar <devarsht@...com>
Signed-off-by: Hari Nagalla <hnagalla@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a-main.dtsi   | 11 ++++++++++
 arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi    | 23 +++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 23 +++++++++++++++++++++
 3 files changed, 57 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
index 393a1a40b68b..81a017b2f2b2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
@@ -660,4 +660,15 @@ ecap2: pwm@...20000 {
 		clock-names = "fck";
 		status = "disabled";
 	};
+
+	c7x_0: dsp@...00000 {
+		compatible = "ti,am62a-c7xv-dsp";
+		reg = <0x00 0x7e000000 0x00 0x00100000>;
+		reg-names = "l2sram";
+		ti,sci = <&dmsc>;
+		ti,sci-dev-id = <208>;
+		ti,sci-proc-ids = <0x04 0xff>;
+		resets = <&k3_reset 208 1>;
+		firmware-name = "am62a-c71_0-fw";
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
index 2bb813e784a2..605df62d1d28 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
@@ -87,4 +87,27 @@ mcu_gpio0: gpio@...1000 {
 		clock-names = "gpio";
 		status = "disabled";
 	};
+
+	mcu_r5fss0: r5fss@...00000 {
+		compatible = "ti,am62-r5fss";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x79000000 0x00 0x79000000 0x8000>,
+			 <0x79020000 0x00 0x79020000 0x8000>;
+		power-domains = <&k3_pds 7 TI_SCI_PD_EXCLUSIVE>;
+		mcu_r5fss0_core0: r5f@...00000 {
+			compatible = "ti,am62-r5f";
+			reg = <0x79000000 0x00008000>,
+				<0x79020000 0x00008000>;
+			reg-names = "atcm", "btcm";
+			ti,sci = <&dmsc>;
+			ti,sci-dev-id = <9>;
+			ti,sci-proc-ids = <0x03 0xff>;
+			resets = <&k3_reset 9 1>;
+			firmware-name = "am62a-mcu-r5f0_0-fw";
+			ti,atcm-enable = <0>;
+			ti,btcm-enable = <1>;
+			ti,loczrama = <0>;
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
index 81d984414fd4..c75f6e59dff3 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
@@ -51,4 +51,27 @@ wkup_rtc0: rtc@...f0000 {
 		wakeup-source;
 		status = "disabled";
 	};
+
+	wkup_r5fss0: r5fss@...00000 {
+		compatible = "ti,am62-r5fss";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x78000000 0x00 0x78000000 0x8000>,
+			 <0x78100000 0x00 0x78100000 0x8000>;
+		power-domains = <&k3_pds 119 TI_SCI_PD_EXCLUSIVE>;
+		wkup_r5fss0_core0: r5f@...00000 {
+			compatible = "ti,am62-r5f";
+			reg = <0x78000000 0x00008000>,
+				<0x78100000 0x00008000>;
+			reg-names = "atcm", "btcm";
+			ti,sci = <&dmsc>;
+			ti,sci-dev-id = <121>;
+			ti,sci-proc-ids = <0x01 0xff>;
+			resets = <&k3_reset 121 1>;
+			firmware-name = "am62-wkup-r5f0_0-fw";
+			ti,atcm-enable = <1>;
+			ti,btcm-enable = <1>;
+			ti,loczrama = <1>;
+		};
+	};
 };
-- 
2.34.1