linux-kernel - [PATCH v4 2/6] arm64: dts: xilinx: zynqmp: Add RPU subsystem device node

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Message-ID: <20220420074450.2034092-3-tanmay.shah@xilinx.com>
Date:   Wed, 20 Apr 2022 00:44:50 -0700
From:   Tanmay Shah <tanmay.shah@...inx.com>
To:     <mathieu.poirier@...aro.org>, <bjorn.andersson@...aro.org>
CC:     <michal.simek@...inx.com>, <robh+dt@...nel.org>,
        <bill.mills@...aro.org>, <linux-remoteproc@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v4 2/6] arm64: dts: xilinx: zynqmp: Add RPU subsystem device node

RPU subsystem can be configured in cluster-mode or split mode.
Also each r5 core has separate power domains.

Signed-off-by: Tanmay Shah <tanmay.shah@...inx.com>
---

Changes in v4:
  - Add reserved memory region node and use it in RPU subsystem node

Changes in v3:
  - Fix checkpatch.pl style warning

 arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 35 ++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index c715a18368c2..87d4ce5155c0 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -100,6 +100,22 @@ opp03 {
 		};
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		rproc_0_fw_image: memory@...00000 {
+			no-map;
+			reg = <0x0 0x3ed00000 0x0 0x40000>;
+		};
+
+		rproc_1_fw_image: memory@...00000 {
+			no-map;
+			reg = <0x0 0x3ef00000 0x0 0x40000>;
+		};
+	};
+
 	zynqmp_ipi: zynqmp_ipi {
 		compatible = "xlnx,zynqmp-ipi-mailbox";
 		interrupt-parent = <&gic>;
@@ -648,6 +664,25 @@ qspi: spi@...f0000 {
 			power-domains = <&zynqmp_firmware PD_QSPI>;
 		};
 
+		r5fss: r5fss@...a0000 {
+			compatible = "xlnx,zynqmp-r5fss";
+			xlnx,cluster-mode = <1>;
+
+			reg = <0x0 0Xff9a0000 0x0 0x228>;
+
+			r5f_core0: r5f-0 {
+				compatible = "xlnx,zynqmp-r5f";
+				power-domains = <&zynqmp_firmware PD_RPU_0>;
+				memory-region = <&rproc_0_fw_image>;
+			};
+
+			r5f_core1: r5f-1 {
+				compatible = "xlnx,zynqmp-r5f";
+				power-domains = <&zynqmp_firmware PD_RPU_1>;
+				memory-region = <&rproc_1_fw_image>;
+			};
+		};
+
 		psgtr: phy@...00000 {
 			compatible = "xlnx,zynqmp-psgtr-v1.1";
 			status = "disabled";
-- 
2.25.1