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From:   Prabhakar <prabhakar.csengg@gmail.com>
To:     Geert Uytterhoeven <geert+renesas@glider.be>,
        Magnus Damm <magnus.damm@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc:     Conor Dooley <conor.dooley@microchip.com>,
        Samuel Holland <samuel@sholland.org>,
        linux-riscv <linux-riscv@lists.infradead.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        DT <devicetree@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Prabhakar <prabhakar.csengg@gmail.com>,
        Biju Das <biju.das.jz@bp.renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [RFC PATCH 2/2] arm64: dts: renesas: r9a07g043: Split out RZ/G2UL SoC specific parts
Date:   Thu, 29 Sep 2022 18:23:56 +0100
Message-Id: <20220929172356.301342-3-prabhakar.mahadev-lad.rj@bp.renesas.com>
In-Reply-To: <20220929172356.301342-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
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From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Move RZ/G2UL SoC specific parts to r9a07g043u.dtsi so that r9a07g043.dtsi
can be shared with RZ/Five (RISC-V SoC).

Below are the changes due to which SoC specific parts are moved to
r9a07g043u.dtsi:
- RZ/G2UL has Cortex-A55 (ARM64) whereas the RZ/Five has AX45MP (RISC-V)
- RZ/G2UL has GICv3 as interrupt controller whereas the RZ/Five has PLIC
- RZ/G2UL has WDT2 (channel 2) whereas this block is missing on RZ/Five
- RZ/G2UL has interrupts for SYSC block whereas interrupts are missing
  for SYSC block on RZ/Five

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a07g043.dtsi  | 69 +------------------
 arch/arm64/boot/dts/renesas/r9a07g043u.dtsi | 75 +++++++++++++++++++++
 2 files changed, 76 insertions(+), 68 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g043.dtsi b/arch/arm64/boot/dts/renesas/r9a07g043.dtsi
index dfb8e1e30236..fd2b7d7e6d1a 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g043.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a07g043.dtsi
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 /*
- * Device Tree Source for the RZ/G2UL SoC
+ * Device Tree Source for the RZ/Five and RZ/G2UL SoCs
  *
  * Copyright (C) 2022 Renesas Electronics Corp.
  */
@@ -68,36 +68,8 @@ opp-1000000000 {
 		};
 	};
 
-	cpus {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		cpu0: cpu@0 {
-			compatible = "arm,cortex-a55";
-			reg = <0>;
-			device_type = "cpu";
-			#cooling-cells = <2>;
-			next-level-cache = <&L3_CA55>;
-			enable-method = "psci";
-			clocks = <&cpg CPG_CORE R9A07G043_CLK_I>;
-			operating-points-v2 = <&cluster0_opp>;
-		};
-
-		L3_CA55: cache-controller-0 {
-			compatible = "cache";
-			cache-unified;
-			cache-size = <0x40000>;
-		};
-	};
-
-	psci {
-		compatible = "arm,psci-1.0", "arm,psci-0.2";
-		method = "smc";
-	};
-
 	soc: soc {
 		compatible = "simple-bus";
-		interrupt-parent = <&gic>;
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
@@ -550,12 +522,6 @@ cpg: clock-controller@11010000 {
 		sysc: system-controller@11020000 {
 			compatible = "renesas,r9a07g043-sysc";
 			reg = <0 0x11020000 0 0x10000>;
-			interrupts = <SOC_PERIPHERAL_IRQ(42, IRQ_TYPE_LEVEL_HIGH)>,
-				     <SOC_PERIPHERAL_IRQ(43, IRQ_TYPE_LEVEL_HIGH)>,
-				     <SOC_PERIPHERAL_IRQ(44, IRQ_TYPE_LEVEL_HIGH)>,
-				     <SOC_PERIPHERAL_IRQ(45, IRQ_TYPE_LEVEL_HIGH)>;
-			interrupt-names = "lpm_int", "ca55stbydone_int",
-					  "cm33stbyr_int", "ca55_deny";
 			status = "disabled";
 		};
 
@@ -608,16 +574,6 @@ dmac: dma-controller@11820000 {
 			dma-channels = <16>;
 		};
 
-		gic: interrupt-controller@11900000 {
-			compatible = "arm,gic-v3";
-			#interrupt-cells = <3>;
-			#address-cells = <0>;
-			interrupt-controller;
-			reg = <0x0 0x11900000 0 0x40000>,
-			      <0x0 0x11940000 0 0x60000>;
-			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
-		};
-
 		sdhi0: mmc@11c00000 {
 			compatible = "renesas,sdhi-r9a07g043",
 				     "renesas,rcar-gen3-sdhi";
@@ -819,21 +775,6 @@ wdt0: watchdog@12800800 {
 			status = "disabled";
 		};
 
-		wdt2: watchdog@12800400 {
-			compatible = "renesas,r9a07g043-wdt",
-				     "renesas,rzg2l-wdt";
-			reg = <0 0x12800400 0 0x400>;
-			clocks = <&cpg CPG_MOD R9A07G043_WDT2_PCLK>,
-				 <&cpg CPG_MOD R9A07G043_WDT2_CLK>;
-			clock-names = "pclk", "oscclk";
-			interrupts = <SOC_PERIPHERAL_IRQ(53, IRQ_TYPE_LEVEL_HIGH)>,
-				     <SOC_PERIPHERAL_IRQ(54, IRQ_TYPE_LEVEL_HIGH)>;
-			interrupt-names = "wdt", "perrout";
-			resets = <&cpg R9A07G043_WDT2_PRESETN>;
-			power-domains = <&cpg>;
-			status = "disabled";
-		};
-
 		ostm0: timer@12801000 {
 			compatible = "renesas,r9a07g043-ostm",
 				     "renesas,ostm";
@@ -898,12 +839,4 @@ target: trip-point {
 			};
 		};
 	};
-
-	timer {
-		compatible = "arm,armv8-timer";
-		interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
-				      <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
-				      <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
-				      <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
-	};
 };
diff --git a/arch/arm64/boot/dts/renesas/r9a07g043u.dtsi b/arch/arm64/boot/dts/renesas/r9a07g043u.dtsi
index be84392ee47f..97062ad03765 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g043u.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a07g043u.dtsi
@@ -10,3 +10,78 @@
 #define SOC_PERIPHERAL_IRQ(nr, na)	GIC_SPI nr na
 
 #include "r9a07g043.dtsi"
+
+/ {
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			compatible = "arm,cortex-a55";
+			reg = <0>;
+			device_type = "cpu";
+			#cooling-cells = <2>;
+			next-level-cache = <&L3_CA55>;
+			enable-method = "psci";
+			clocks = <&cpg CPG_CORE R9A07G043_CLK_I>;
+			operating-points-v2 = <&cluster0_opp>;
+		};
+
+		L3_CA55: cache-controller-0 {
+			compatible = "cache";
+			cache-unified;
+			cache-size = <0x40000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-1.0", "arm,psci-0.2";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+				      <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+				      <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+				      <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+};
+
+&soc {
+	interrupt-parent = <&gic>;
+
+	gic: interrupt-controller@11900000 {
+		compatible = "arm,gic-v3";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg = <0x0 0x11900000 0 0x40000>,
+		      <0x0 0x11940000 0 0x60000>;
+		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+	wdt2: watchdog@12800400 {
+		compatible = "renesas,r9a07g043-wdt",
+				"renesas,rzg2l-wdt";
+		reg = <0 0x12800400 0 0x400>;
+		clocks = <&cpg CPG_MOD R9A07G043_WDT2_PCLK>,
+			 <&cpg CPG_MOD R9A07G043_WDT2_CLK>;
+		clock-names = "pclk", "oscclk";
+		interrupts = <SOC_PERIPHERAL_IRQ(53, IRQ_TYPE_LEVEL_HIGH)>,
+			     <SOC_PERIPHERAL_IRQ(54, IRQ_TYPE_LEVEL_HIGH)>;
+		interrupt-names = "wdt", "perrout";
+		resets = <&cpg R9A07G043_WDT2_PRESETN>;
+		power-domains = <&cpg>;
+		status = "disabled";
+	};
+};
+
+&sysc {
+	interrupts = <SOC_PERIPHERAL_IRQ(42, IRQ_TYPE_LEVEL_HIGH)>,
+		     <SOC_PERIPHERAL_IRQ(43, IRQ_TYPE_LEVEL_HIGH)>,
+		     <SOC_PERIPHERAL_IRQ(44, IRQ_TYPE_LEVEL_HIGH)>,
+		     <SOC_PERIPHERAL_IRQ(45, IRQ_TYPE_LEVEL_HIGH)>;
+	interrupt-names = "lpm_int", "ca55stbydone_int",
+			  "cm33stbyr_int", "ca55_deny";
+};
-- 
2.25.1