Date:   Thu, 10 Mar 2022 16:00:38 +1300
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     linus.walleij@...aro.org, robh+dt@...nel.org,
        catalin.marinas@....com, will@...nel.org, andrew@...n.ch,
        gregory.clement@...tlin.com, sebastian.hesselbarth@...il.com,
        kostap@...vell.com, robert.marko@...tura.hr
Cc:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v1 3/4] arm64: dts: marvell: Add Armada 98DX2530 SoC and RD-AC5X board

The 98DX2530 SoC is the Control and Management CPU integrated into
the Marvell 98DX25xx and 98DX35xx series of switch chip (internally
referred to as AlleyCat5 and AlleyCat5X).

These files have been taken from the Marvell SDK and lightly cleaned
up with the License and copyright retained.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    This has a number of undocumented compatible strings. I've got the SDK
    source so I'll either bring through whatever drivers are needed or look
    at for an in-tree alternative (e.g. there is SDK code for a ac5-gpio but
    the existing marvell,orion-gpio seems to cover what is needed if you use
    an appropriate binding).

 arch/arm64/boot/dts/marvell/Makefile          |   1 +
 .../boot/dts/marvell/armada-98dx2530.dtsi     | 459 ++++++++++++++++++
 arch/arm64/boot/dts/marvell/rd-ac5x.dts       |  27 ++
 3 files changed, 487 insertions(+)
 create mode 100644 arch/arm64/boot/dts/marvell/armada-98dx2530.dtsi
 create mode 100644 arch/arm64/boot/dts/marvell/rd-ac5x.dts

diff --git a/arch/arm64/boot/dts/marvell/Makefile b/arch/arm64/boot/dts/marvell/Makefile
index 1c794cdcb8e6..3905dee558b4 100644
--- a/arch/arm64/boot/dts/marvell/Makefile
+++ b/arch/arm64/boot/dts/marvell/Makefile
@@ -24,3 +24,4 @@ dtb-$(CONFIG_ARCH_MVEBU) += cn9132-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9132-db-B.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-A.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-B.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += rd-ac5x.dtb
diff --git a/arch/arm64/boot/dts/marvell/armada-98dx2530.dtsi b/arch/arm64/boot/dts/marvell/armada-98dx2530.dtsi
new file mode 100644
index 000000000000..fac82474c239
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/armada-98dx2530.dtsi
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree For AC5.
+ *
+ * Copyright (C) 2021 Marvell
+ *
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	model = "Marvell AC5 SoC";
+	compatible = "marvell,ac5", "marvell,armada3700";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		prestera_rsvd: buffer@...000000 {
+			/*
+			 * to be used as a shared pool of DMA buffers for a set
+			 * of devices
+			 */
+			compatible = "shared-dma-pool";
+			/*
+			 * No one other than devices registered for that mem,
+			 * may use this area
+			 */
+			no-map;
+			/*
+			 * addr (first 2 cells) need to be aligned with actual
+			 * DMA that will be allocated, therefore we choose such
+			 * addr, that will be aligned with many DMA sizes
+			 */
+			reg = <0x2 0x00000000 0x0 0x400000>;
+		};
+	};
+
+	mvDma {
+		compatible = "marvell,mv_dma";
+		memory-region = <&prestera_rsvd>;
+		status = "okay";
+	};
+
+	aliases {
+		serial0 = &uart0;
+		spiflash0 = &spiflash0;
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		ethernet0 = &eth0;
+		ethernet1 = &eth1;
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>,
+				 <GIC_PPI 8 IRQ_TYPE_LEVEL_HIGH>,
+				 <GIC_PPI 10 IRQ_TYPE_LEVEL_HIGH>,
+				 <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <25000000>;
+	};
+
+	pmu {
+		compatible = "arm,armv8-pmuv3";
+		interrupts = <GIC_PPI 12 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		dma-ranges;
+
+		internal-regs@...00000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "simple-bus";
+			/* 16M internal register @ 0x7f00_0000 */
+			ranges = <0x0 0x0 0x7f000000 0x1000000>;
+			dma-coherent;
+
+			uart0: serial@...00 {
+				compatible = "snps,dw-apb-uart";
+				reg = <0x12000 0x100>;
+				reg-shift = <2>;
+				interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+				reg-io-width = <1>;
+				clock-frequency = <328000000>;
+				status = "okay";
+			};
+
+			mdio: mdio@...00 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "marvell,orion-mdio";
+				reg = <0x22004 0x4>;
+				clocks = <&core_clock>;
+				phy0: ethernet-phy@0 {
+					reg = < 0 0 >;
+				};
+			};
+
+			i2c0: i2c@...00{
+				compatible = "marvell,mv78230-i2c";
+				reg = <0x11000 0x20>;
+
+				clocks = <&core_clock>;
+				clock-names = "core";
+				interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+				clock-frequency=<100000>;
+				status="okay";
+
+				pinctrl-names = "default", "gpio";
+				pinctrl-0 = <&i2c0_pins>;
+				pinctrl-1 = <&i2c0_gpio>;
+				scl_gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+				sda_gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
+			};
+
+			i2c1: i2c@...00{
+				compatible = "marvell,mv78230-i2c";
+				reg = <0x11100 0x20>;
+
+				clocks = <&core_clock>;
+				clock-names = "core";
+				interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+				clock-frequency=<100000>;
+				status="okay";
+
+				pinctrl-names = "default", "gpio";
+				pinctrl-0 = <&i2c1_pins>;
+				pinctrl-1 = <&i2c1_gpio>;
+				scl_gpio = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+				sda_gpio = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+			};
+
+			gpio0: gpio@...00 {
+				compatible = "marvell,orion-gpio";
+				reg = <0x18100 0x40>;
+				ngpios = <32>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				gpio-ranges = <&pinctrl0 0 0 32>;
+				marvell,pwm-offset = <0x1f0>;
+			};
+
+			gpio1: gpio@...40 {
+				reg = <0x18140 0x40>;
+				compatible = "marvell,orion-gpio";
+				ngpios = <14>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				gpio-ranges = <&pinctrl0 0 32 14>;
+				marvell,pwm-offset = <0x1f0>;
+			};
+		};
+
+		mmc_dma: mmc-dma-peripherals@...00000 {
+				compatible = "simple-bus";
+				#address-cells = <0x2>;
+				#size-cells = <0x2>;
+				ranges;
+				dma-coherent;
+
+				sdhci0: sdhci@...c0000 {
+					compatible = "marvell,ac5-sdhci", "marvell,armada-ap806-sdhci";
+					reg = <0x0 0x805c0000 0x0 0x300>;
+					reg-names = "ctrl", "decoder";
+					interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&core_clock>;
+					clock-names = "core";
+					status = "okay";
+					bus-width = <8>;
+					/*marvell,xenon-phy-slow-mode;*/
+					non-removable;
+					mmc-ddr-1_8v;
+					mmc-hs200-1_8v;
+					mmc-hs400-1_8v;
+				};
+		};
+
+		/*
+		 * Dedicated section for devices behind 32bit controllers so we
+		 * can configure specific DMA mapping for them
+		 */
+		behind-32bit-controller@...00000 {
+			compatible = "simple-bus";
+			#address-cells = <0x2>;
+			#size-cells = <0x2>;
+			ranges = <0x0 0x0 0x0 0x7f000000 0x0 0x1000000>;
+			/* Host phy ram starts at 0x200M */
+			dma-ranges = <0x0 0x0 0x2 0x0 0x1 0x0>;
+			dma-coherent;
+
+			eth0: ethernet@...00 {
+				compatible = "marvell,armada-ac5-neta";
+				reg = <0x0 0x20000 0x0 0x4000>;
+				interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&core_clock>;
+				status = "disabled";
+				phy-mode = "sgmii";
+			};
+
+			eth1: ethernet@...00 {
+				compatible = "marvell,armada-ac5-neta";
+				reg = <0x0 0x24000 0x0 0x4000>;
+				interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&core_clock>;
+				status = "disabled";
+				phy-mode = "sgmii";
+				fixed-link {
+					speed = <100>;
+					full-duplex;
+				};
+			};
+
+			/* A dummy entry used for chipidea phy init */
+			usb1phy: usbphy {
+				compatible = "usb-nop-xceiv";
+				#phy-cells = <0>;
+			};
+
+			/* USB0 is a host USB */
+			usb0: usb@...00 {
+				compatible = "marvell,ac5-ehci", "marvell,orion-ehci";
+				reg = <0x0 0x80000 0x0 0x500>;
+				interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+				status = "okay";
+			};
+
+			/* USB1 is a peripheral USB */
+			usb1: usb@...00 {
+				reg = <0x0 0xa0000 0x0 0x500>;
+				interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+				status = "okay";
+			};
+		};
+
+		pinctrl0: pinctrl@...20100 {
+			compatible = "marvell,ac5-pinctrl",
+				     "syscon", "simple-mfd";
+			reg = <0 0x80020100 0 0x20>;
+
+			i2c0_pins: i2c0-pins {
+				marvell,pins = "mpp26", "mpp27";
+				marvell,function = "i2c0";
+			};
+
+			i2c0_gpio: i2c0-gpio-pins {
+				marvell,pins = "mpp26", "mpp27";
+				marvell,function = "gpio";
+			};
+
+			i2c1_pins: i2c1-pins {
+				marvell,pins = "mpp20", "mpp21";
+				marvell,function = "i2c1";
+			};
+
+			i2c1_gpio: i2c1-gpio-pins {
+				marvell,pins = "mpp20", "mpp21";
+				marvell,function = "i2c1";
+			};
+		};
+
+		pcie0: pcie@...a0000 {
+			compatible = "marvell,ac5-pcie", "snps,dw-pcie";
+			reg = <0 0x800a0000 0 0x20000>, <0 0x3fff0000 0 0x10000>;
+			reg-names = "ctrl", "config";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			device_type = "pci";
+			dma-coherent;
+			bus-range = <0 0xff>;
+			/* ranges for the PCI memory and I/O regions */
+			ranges = <0x82000000 0 0x30000000 0 0x30000000 0 0xfff0000>;
+
+			interrupt-map-mask = <0 0 0 1>;
+			interrupt-map = <0 0 0 1 &gic GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+
+			interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+
+			num-lanes = <1>;
+			status = "disabled";
+
+			clocks = <&core_clock>;
+		};
+
+		core_clock: core_clock@0 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <400000000>;
+		};
+
+		axi_clock: axi_clock@0 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <325000000>;
+		};
+
+		spi_clock: spi_clock@0 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <200000000>;
+		};
+
+		spi@...a0000 {
+			compatible = "marvell,armada-3700-spi";
+			reg = <0x0 0x805a0000 0x0 0x50>;
+			#address-cells = <0x1>;
+			#size-cells = <0x0>;
+			clocks = <&spi_clock>;
+			interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+			num-cs = <1>;
+			status = "okay";
+
+			spiflash0: spi-flash@0 {
+				compatible = "spi-nor";
+				spi-max-frequency = <50000000>;
+				spi-tx-bus-width = <1>; /* 1-single, 2-dual, 4-quad */
+				spi-rx-bus-width = <1>; /* 1-single, 2-dual, 4-quad */
+				reg = <0>;
+
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "spi_flash_part0";
+					reg = <0x0 0x800000>;
+				};
+
+				parition@1 {
+					label = "spi_flash_part1";
+					reg = <0x800000 0x700000>;
+				};
+
+				parition@2 {
+					label = "spi_flash_part2";
+					reg = <0xF00000 0x100000>;
+				};
+			};
+		};
+
+		spi@...a8000 {
+			compatible = "marvell,armada-3700-spi";
+			reg = <0x0 0x805a8000 0x0 0x50>;
+			#address-cells = <0x1>;
+			#size-cells = <0x0>;
+			clocks = <&spi_clock>;
+			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+			num-cs = <1>;
+			status = "disabled";
+		};
+
+		nand: nand@...b0000 {
+			compatible = "marvell,ac5-nand-controller";
+			reg =  <0x0 0x805b0000 0x0 0x00000054
+				0x0 0x840F8204 0x0 0x00000004
+				0x0 0x80013010 0x0 0x00000020>;
+			#address-cells = <0x1>;
+			#size-cells = <0x0>;
+			interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&core_clock>;
+			/*marvell,system-controller = <0x15>*/
+			status = "okay";
+
+			nand@0 {
+				reg = <0x0>;
+				label = "main-storage";
+				nand-rb = <0>;
+				nand-ecc-mode = "hw";
+				nand-ecc-strength = <12>;
+				nand-ecc-step-size = <512>;
+			};
+		};
+
+		prestera {
+			compatible = "marvell,armada-ac5-switch";
+			interrupts = <GIC_SPI 0x23 IRQ_TYPE_LEVEL_HIGH>;
+			status = "okay";
+		};
+
+		watchdog@...16000 {
+			compatible = "marvell,ac5-wd";
+			reg = <0x0 0x80216000 0 0x1000>,
+				  <0x0 0x80215000 0 0x1000>;
+			interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+			timeout-sec = <30>;
+		};
+
+	};
+
+	gic: interrupt-controller@...00000 {
+		compatible = "arm,gic-v3";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		/*#redistributor-regions = <1>;*/
+		redistributor-stride = <0x0 0x20000>;	// 128kB stride
+		reg = <0x0 0x80600000 0x0 0x10000>, /* GICD */
+			  <0x0 0x80660000 0x0 0x40000>; /* GICR */
+		interrupts = <GIC_PPI 6 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&CPU0>;
+				};
+				core1 {
+					cpu = <&CPU1>;
+				};
+			};
+		};
+
+		CPU0:cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,armv8";
+			reg = <0x0 0x0>;
+			enable-method = "psci";
+			next-level-cache = <&L2_0>;
+		};
+
+		CPU1:cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,armv8";
+			reg = <0x0 0x100>;
+			enable-method = "psci";
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x2 0x00000000 0x0 0x40000000>;
+		// linux,usable-memory = <0x2 0x00000000 0x0 0x80000000>;
+	};
+
+};
diff --git a/arch/arm64/boot/dts/marvell/rd-ac5x.dts b/arch/arm64/boot/dts/marvell/rd-ac5x.dts
new file mode 100644
index 000000000000..5e3c1a05acaa
--- /dev/null
+++ b/arch/arm64/boot/dts/marvell/rd-ac5x.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree For AC5X.
+ *
+ * Copyright (C) 2021 Marvell
+ *
+ */
+/*
+ * Device Tree file for Marvell Alleycat 5X development board
+ * This board file supports the B configuration of the board
+ */
+
+#include "armada-98dx2530.dtsi"
+
+
+&eth0 {
+	status = "okay";
+	phy = <&phy0>;
+};
+
+&usb1 {
+	compatible = "chipidea,usb2";
+	phys = <&usb1phy>;
+	phy-names = "usb-phy";
+	dr_mode = "peripheral";
+};
+
-- 
2.35.1

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