arm: mvebu: Add DB-XC3-24G4XG board

The DB-XC3-24G4XG is a switch development board from Marvell. It can
either use and external CPU card such as the db-88f6820-amc or the
internal CPU that is integrated into the switch.

Add support for running U-Boot on the internal CPU and enable the USB,
SPI and NAND peripherals. For now this needs the bin_hdr from the
Marvell U-Boot for this board.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>

6 files changed, 572 insertions, 1 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 86a01c2c70..524c1ee0db 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -151,7 +151,8 @@ dtb-$(CONFIG_ARCH_MVEBU) +=			\
 	armada-xp-theadorable.dtb		\
 	armada-38x-controlcenterdc.dtb		\
 	armada-385-atl-x530.dtb			\
-	armada-385-atl-x530DP.dtb
+	armada-385-atl-x530DP.dtb		\
+	armada-xp-db-xc3-24g4xg.dtb
 
 dtb-$(CONFIG_ARCH_UNIPHIER_LD11) += \
 	uniphier-ld11-global.dtb \
diff --git a/arch/arm/dts/armada-xp-98dx3236.dtsi b/arch/arm/dts/armada-xp-98dx3236.dtsi
new file mode 100644
index 0000000000..5df1d1848d
--- /dev/null
+++ b/arch/arm/dts/armada-xp-98dx3236.dtsi
@@ -0,0 +1,343 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree Include file for Marvell 98dx3236 family SoC
+ *
+ * Copyright (C) 2016 Allied Telesis Labs
+ *
+ * Contains definitions specific to the 98dx3236 SoC that are not
+ * common to all Armada XP SoCs.
+ */
+
+#include "armada-370-xp.dtsi"
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	model = "Marvell 98DX3236 SoC";
+	compatible = "marvell,armadaxp-98dx3236", "marvell,armada-370-xp";
+
+	aliases {
+		gpio0 = &gpio0;
+		gpio1 = &gpio1;
+		gpio2 = &gpio2;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		enable-method = "marvell,98dx3236-smp";
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "marvell,sheeva-v7";
+			reg = <0>;
+			clocks = <&cpuclk 0>;
+			clock-latency = <1000000>;
+		};
+	};
+
+	soc {
+		compatible = "marvell,armadaxp-mbus", "simple-bus";
+
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
+			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000
+			  MBUS_ID(0x01, 0x2f) 0 0 0xf0000000 0x1000000
+			  MBUS_ID(0x03, 0x00) 0 0 0xa8000000 0x4000000
+			  MBUS_ID(0x08, 0x00) 0 0 0xac000000 0x100000>;
+
+		bootrom {
+			compatible = "marvell,bootrom";
+			reg = <MBUS_ID(0x01, 0x1d) 0 0x100000>;
+		};
+
+		/*
+		 * 98DX3236 has 1 x1 PCIe unit Gen2.0
+		 */
+		pciec: pcie@82000000 {
+			compatible = "marvell,armada-xp-pcie";
+			status = "disabled";
+			device_type = "pci";
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			msi-parent = <&mpic>;
+			bus-range = <0x00 0xff>;
+
+			ranges =
+			       <0x82000000 0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0 0x00002000   /* Port 0.0 registers */
+				0x82000000 0x1 0       MBUS_ID(0x04, 0xe8) 0 1 0 /* Port 0.0 MEM */
+				0x81000000 0x1 0       MBUS_ID(0x04, 0xe0) 0 1 0 /* Port 0.0 IO  */>;
+
+			pcie1: pcie@1,0 {
+				device_type = "pci";
+				assigned-addresses = <0x82000800 0 0x40000 0 0x2000>;
+				reg = <0x0800 0 0 0 0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				#interrupt-cells = <1>;
+				ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
+					  0x81000000 0 0 0x81000000 0x1 0 1 0>;
+				bus-range = <0x00 0xff>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &mpic 58>;
+				marvell,pcie-port = <0>;
+				marvell,pcie-lane = <0>;
+				clocks = <&gateclk 5>;
+				status = "disabled";
+			};
+		};
+
+		internal-regs {
+			sdramc: sdramc@1400 {
+				compatible = "marvell,armada-xp-sdram-controller";
+				reg = <0x1400 0x500>;
+			};
+
+			L2: l2-cache@8000 {
+				compatible = "marvell,aurora-system-cache";
+				reg = <0x08000 0x1000>;
+				cache-id-part = <0x100>;
+				cache-level = <2>;
+				cache-unified;
+				wt-override;
+			};
+
+			gpio0: gpio@18100 {
+				compatible = "marvell,orion-gpio";
+				reg = <0x18100 0x40>;
+				ngpios = <32>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				interrupts = <82>, <83>, <84>, <85>;
+			};
+
+			/* does not exist */
+			gpio1: gpio@18140 {
+				compatible = "marvell,orion-gpio";
+				reg = <0x18140 0x40>;
+				status = "disabled";
+			};
+
+			gpio2: gpio@18180 { /* rework some properties */
+				compatible = "marvell,orion-gpio";
+				reg = <0x18180 0x40>;
+				ngpios = <1>; /* only gpio #32 */
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				interrupts = <87>;
+			};
+
+			systemc: system-controller@18200 {
+				compatible = "marvell,armada-370-xp-system-controller";
+				reg = <0x18200 0x500>;
+			};
+
+			gateclk: clock-gating-control@18220 {
+				compatible = "marvell,mv98dx3236-gating-clock";
+				reg = <0x18220 0x4>;
+				clocks = <&coreclk 0>;
+				#clock-cells = <1>;
+			};
+
+			cpuclk: clock-complex@18700 {
+				#clock-cells = <1>;
+				compatible = "marvell,mv98dx3236-cpu-clock";
+				reg = <0x18700 0x24>, <0x1c054 0x10>;
+				clocks = <&coreclk 1>;
+			};
+
+			corediv-clock@18740 {
+				status = "disabled";
+			};
+
+			cpu-config@21000 {
+				compatible = "marvell,armada-xp-cpu-config";
+				reg = <0x21000 0x8>;
+			};
+
+			ethernet@70000 {
+				compatible = "marvell,armada-xp-neta";
+			};
+
+			ethernet@74000 {
+				compatible = "marvell,armada-xp-neta";
+			};
+
+			xor1: xor@f0800 {
+				compatible = "marvell,orion-xor";
+				reg = <0xf0800 0x100
+				       0xf0a00 0x100>;
+				clocks = <&gateclk 22>;
+				status = "okay";
+
+				xor10 {
+					interrupts = <51>;
+					dmacap,memcpy;
+					dmacap,xor;
+				};
+				xor11 {
+					interrupts = <52>;
+					dmacap,memcpy;
+					dmacap,xor;
+					dmacap,memset;
+				};
+			};
+
+			nand_controller: nand@d0000 {
+				clocks = <&dfx_coredivclk 0>;
+			};
+
+			xor0: xor@f0900 {
+				compatible = "marvell,orion-xor";
+				reg = <0xF0900 0x100
+				       0xF0B00 0x100>;
+				clocks = <&gateclk 28>;
+				status = "okay";
+
+				xor00 {
+					interrupts = <94>;
+					dmacap,memcpy;
+					dmacap,xor;
+				};
+				xor01 {
+					interrupts = <95>;
+					dmacap,memcpy;
+					dmacap,xor;
+					dmacap,memset;
+				};
+			};
+		};
+
+		dfx: dfx-server@ac000000 {
+			compatible = "marvell,dfx-server", "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 MBUS_ID(0x08, 0x00) 0 0x100000>;
+			reg = <MBUS_ID(0x08, 0x00) 0 0x100000>;
+
+                        thermal: thermal@f8078 {
+                                compatible = "marvell,armada380-thermal";
+                                reg = <0xf8078 0x4>, <0xf8074 0x4>;
+                                status = "okay";
+                        };
+
+			coreclk: mvebu-sar@f8204 {
+				compatible = "marvell,mv98dx3236-core-clock";
+				reg = <0xf8204 0x4>;
+				#clock-cells = <1>;
+			};
+
+			dfx_coredivclk: corediv-clock@f8268 {
+				compatible = "marvell,mv98dx3236-corediv-clock";
+				reg = <0xf8268 0xc>;
+				#clock-cells = <1>;
+				clocks = <&mainpll>;
+				clock-output-names = "nand";
+			};
+		};
+
+		switch: switch@a8000000 {
+			compatible = "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 MBUS_ID(0x03, 0x00) 0 0x100000>;
+
+			pp0: packet-processor@0 {
+				compatible = "marvell,prestera-98dx3236", "marvell,prestera";
+				reg = <0 0x4000000>;
+				interrupts = <33>, <34>, <35>;
+				dfx = <&dfx>;
+			};
+		};
+	};
+
+	clocks {
+		/* 25 MHz reference crystal */
+		refclk: oscillator {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <25000000>;
+		};
+	};
+};
+
+&i2c0 {
+	compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
+	reg = <0x11000 0x100>;
+};
+
+&i2c1 {
+	compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
+	reg = <0x11100 0x100>;
+};
+
+&mpic {
+	reg = <0x20a00 0x2d0>, <0x21070 0x58>;
+};
+
+&rtc {
+	status = "disabled";
+};
+
+&timer {
+	compatible = "marvell,armada-xp-timer";
+	clocks = <&coreclk 2>, <&refclk>;
+	clock-names = "nbclk", "fixed";
+};
+
+&watchdog {
+	compatible = "marvell,armada-xp-wdt";
+	clocks = <&coreclk 2>, <&refclk>;
+	clock-names = "nbclk", "fixed";
+};
+
+&cpurst {
+	reg = <0x20800 0x20>;
+};
+
+&usb0 {
+	clocks = <&gateclk 18>;
+};
+
+&usb1 {
+	clocks = <&gateclk 19>;
+};
+
+&pinctrl {
+	compatible = "marvell,98dx3236-pinctrl";
+
+	nand_pins: nand-pins {
+		marvell,pins = "mpp20", "mpp21", "mpp22",
+			       "mpp23", "mpp24", "mpp25",
+			       "mpp26", "mpp27", "mpp28",
+			       "mpp29", "mpp30";
+		marvell,function = "dev";
+	};
+
+	nand_rb: nand-rb {
+		marvell,pins = "mpp19";
+		marvell,function = "nand";
+	};
+
+	spi0_pins: spi0-pins {
+		marvell,pins = "mpp0", "mpp1",
+			       "mpp2", "mpp3";
+		marvell,function = "spi0";
+	};
+};
+
+&spi0 {
+	compatible = "marvell,armada-xp-spi", "marvell,orion-spi";
+	pinctrl-0 = <&spi0_pins>;
+	pinctrl-names = "default";
+};
+
+&sdio {
+	status = "disabled";
+};
diff --git a/arch/arm/dts/armada-xp-98dx3336.dtsi b/arch/arm/dts/armada-xp-98dx3336.dtsi
new file mode 100644
index 0000000000..1d9d8a8ea6
--- /dev/null
+++ b/arch/arm/dts/armada-xp-98dx3336.dtsi
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree Include file for Marvell 98dx3336 family SoC
+ *
+ * Copyright (C) 2016 Allied Telesis Labs
+ *
+ * Contains definitions specific to the 98dx3236 SoC that are not
+ * common to all Armada XP SoCs.
+ */
+
+#include "armada-xp-98dx3236.dtsi"
+
+/ {
+	model = "Marvell 98DX3336 SoC";
+	compatible = "marvell,armadaxp-98dx3336", "marvell,armadaxp-98dx3236", "marvell,armada-370-xp";
+
+	cpus {
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "marvell,sheeva-v7";
+			reg = <1>;
+			clocks = <&cpuclk 1>;
+			clock-latency = <1000000>;
+		};
+	};
+
+	soc {
+		internal-regs {
+			resume@20980 {
+				compatible = "marvell,98dx3336-resume-ctrl";
+				reg = <0x20980 0x10>;
+			};
+		};
+	};
+};
+
+&pp0 {
+	compatible = "marvell,prestera-98dx3336", "marvell,prestera";
+};
diff --git a/arch/arm/dts/armada-xp-98dx4251.dtsi b/arch/arm/dts/armada-xp-98dx4251.dtsi
new file mode 100644
index 0000000000..48ffdc72bf
--- /dev/null
+++ b/arch/arm/dts/armada-xp-98dx4251.dtsi
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree Include file for Marvell 98dx4521 family SoC
+ *
+ * Copyright (C) 2016 Allied Telesis Labs
+ *
+ * Contains definitions specific to the 98dx4521 SoC that are not
+ * common to all Armada XP SoCs.
+ */
+
+#include "armada-xp-98dx3236.dtsi"
+
+/ {
+	model = "Marvell 98DX4251 SoC";
+	compatible = "marvell,armadaxp-98dx4251", "marvell,armadaxp-98dx3236", "marvell,armada-370-xp";
+
+	cpus {
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "marvell,sheeva-v7";
+			reg = <1>;
+			clocks = <&cpuclk 1>;
+			clock-latency = <1000000>;
+		};
+	};
+
+	soc {
+		internal-regs {
+			resume@20980 {
+				compatible = "marvell,98dx3336-resume-ctrl";
+				reg = <0x20980 0x10>;
+			};
+		};
+	};
+};
+
+&sdio {
+	status = "okay";
+};
+
+&pinctrl {
+	compatible = "marvell,98dx4251-pinctrl";
+
+	sdio_pins: sdio-pins {
+		marvell,pins = "mpp5", "mpp6", "mpp7",
+			       "mpp8", "mpp9", "mpp10";
+		marvell,function = "sd0";
+	};
+};
+
+&pp0 {
+	compatible = "marvell,prestera-98dx4251", "marvell,prestera";
+	interrupts = <33>, <34>, <35>, <36>;
+};
diff --git a/arch/arm/dts/armada-xp-db-xc3-24g4xg-u-boot.dtsi b/arch/arm/dts/armada-xp-db-xc3-24g4xg-u-boot.dtsi
new file mode 100644
index 0000000000..90cad85506
--- /dev/null
+++ b/arch/arm/dts/armada-xp-db-xc3-24g4xg-u-boot.dtsi
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+&uart0 {
+	u-boot,dm-pre-reloc;
+};
+
+&nand_controller {
+	compatible="marvell,mvebu-pxa3xx-nand";
+	status = "okay";
+	label = "pxa3xx_nand-0";
+	nand-rb = <0>;
+	marvell,nand-keep-config;
+	nand-on-flash-bbt;
+	nand-ecc-strength = <4>;
+	nand-ecc-step-size = <512>;
+};
+
+&spi0 {
+	u-boot,dm-pre-reloc;
+
+	spi-flash@0 {
+		u-boot,dm-pre-reloc;
+	};
+};
diff --git a/arch/arm/dts/armada-xp-db-xc3-24g4xg.dts b/arch/arm/dts/armada-xp-db-xc3-24g4xg.dts
new file mode 100644
index 0000000000..d4b52881e6
--- /dev/null
+++ b/arch/arm/dts/armada-xp-db-xc3-24g4xg.dts
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for DB-XC3-24G4XG board
+ *
+ * Copyright (C) 2016 Allied Telesis Labs
+ *
+ * Based on armada-xp-db.dts
+ *
+ * Note: this Device Tree assumes that the bootloader has remapped the
+ * internal registers to 0xf1000000 (instead of the default
+ * 0xd0000000). The 0xf1000000 is the default used by the recent,
+ * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
+ * boards were delivered with an older version of the bootloader that
+ * left internal registers mapped at 0xd0000000. If you are in this
+ * situation, you should either update your bootloader (preferred
+ * solution) or the below Device Tree should be adjusted.
+ */
+
+/dts-v1/;
+#include "armada-xp-98dx3336.dtsi"
+#include "armada-xp-db-xc3-24g4xg-u-boot.dtsi"
+
+/ {
+	model = "DB-XC3-24G4XG";
+	compatible = "marvell,armadaxp-98dx3336", "marvell,armadaxp-mv78260", "marvell,armadaxp", "marvell,armada-370-xp";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	aliases {
+		spi0 = &spi0;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0x00000000 0 0x40000000>; /* 1 GB */
+	};
+};
+
+&L2 {
+	arm,parity-enable;
+	marvell,ecc-enable;
+};
+
+&devbus_bootcs {
+	status = "okay";
+
+	/* Device Bus parameters are required */
+
+	/* Read parameters */
+	devbus,bus-width    = <16>;
+	devbus,turn-off-ps  = <60000>;
+	devbus,badr-skew-ps = <0>;
+	devbus,acc-first-ps = <124000>;
+	devbus,acc-next-ps  = <248000>;
+	devbus,rd-setup-ps  = <0>;
+	devbus,rd-hold-ps   = <0>;
+
+	/* Write parameters */
+	devbus,sync-enable = <0>;
+	devbus,wr-high-ps  = <60000>;
+	devbus,wr-low-ps   = <60000>;
+	devbus,ale-wr-ps   = <60000>;
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&i2c0 {
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+
+	spi-flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-flash", "jedec,spi-nor";
+		reg = <0>; /* Chip select 0 */
+		spi-max-frequency = <108000000>;
+		m25p,fast-read;
+
+		partition@u-boot {
+			reg = <0x00000000 0x00100000>;
+			label = "u-boot";
+		};
+		partition@u-boot-env {
+			reg = <0x00100000 0x00040000>;
+			label = "u-boot-env";
+		};
+		partition@unused {
+			reg = <0x00140000 0x00ec0000>;
+			label = "unused";
+		};
+
+	};
+};