xref: /kernel/linux/linux-6.6/arch/powerpc/boot/dts/currituck.dts

/*
 * Device Tree Source for IBM Embedded PPC 476 Platform
 *
 * Copyright © 2011 Tony Breeds IBM Corporation
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without
 * any warranty of any kind, whether express or implied.
 */

/dts-v1/;

/memreserve/ 0x01f00000 0x00100000;	// spin table

/ {
	#address-cells = <2>;
	#size-cells = <2>;
	model = "ibm,currituck";
	compatible = "ibm,currituck";
	dcr-parent = <&{/cpus/cpu@0}>;

	aliases {
		serial0 = &UART0;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu@0 {
			device_type = "cpu";
			model = "PowerPC,476";
			reg = <0>;
			clock-frequency = <1600000000>; // 1.6 GHz
			timebase-frequency = <100000000>; // 100Mhz
			i-cache-line-size = <32>;
			d-cache-line-size = <32>;
			i-cache-size = <32768>;
			d-cache-size = <32768>;
			dcr-controller;
			dcr-access-method = "native";
			status = "okay";
		};
		cpu@1 {
			device_type = "cpu";
			model = "PowerPC,476";
			reg = <1>;
			clock-frequency = <1600000000>; // 1.6 GHz
			timebase-frequency = <100000000>; // 100Mhz
			i-cache-line-size = <32>;
			d-cache-line-size = <32>;
			i-cache-size = <32768>;
			d-cache-size = <32768>;
			dcr-controller;
			dcr-access-method = "native";
			status = "disabled";
			enable-method = "spin-table";
			cpu-release-addr = <0x0 0x01f00000>;
		};
	};

	memory {
		device_type = "memory";
		reg = <0x0 0x0 0x0 0x0>; // filled in by zImage
	};

	MPIC: interrupt-controller {
		compatible = "chrp,open-pic";
		interrupt-controller;
		dcr-reg = <0xffc00000 0x00040000>;
		#address-cells = <0>;
		#size-cells = <0>;
		#interrupt-cells = <2>;

	};

	plb {
		compatible = "ibm,plb6";
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;
		clock-frequency = <200000000>; // 200Mhz

		POB0: opb {
			compatible = "ibm,opb-4xx", "ibm,opb";
			#address-cells = <1>;
			#size-cells = <1>;
			/* Wish there was a nicer way of specifying a full
			 * 32-bit range
			 */
			ranges = <0x00000000 0x00000200 0x00000000 0x80000000
				  0x80000000 0x00000200 0x80000000 0x80000000>;
			clock-frequency = <100000000>;

			UART0: serial@10000000 {
				device_type = "serial";
				compatible = "ns16750", "ns16550";
				reg = <0x10000000 0x00000008>;
				virtual-reg = <0xe1000000>;
				clock-frequency = <1851851>; // PCIe refclk/MCGC0_CTL[UART]
				current-speed = <115200>;
				interrupt-parent = <&MPIC>;
				interrupts = <34 2>;
			};

			FPGA0: fpga@50000000 {
				compatible = "ibm,currituck-fpga";
				reg = <0x50000000 0x4>;
			};

			IIC0: i2c@0 {
				compatible = "ibm,iic-currituck", "ibm,iic";
				reg = <0x0 0x00000014>;
				interrupt-parent = <&MPIC>;
				interrupts = <79 2>;
				#address-cells = <1>;
				#size-cells = <0>;
                                rtc@68 {
                                        compatible = "st,m41t80", "m41st85";
                                        reg = <0x68>;
                                };
			};
		};

		PCIE0: pcie@10100000000 {		// 4xGBIF1
			device_type = "pci";
			#interrupt-cells = <1>;
			#size-cells = <2>;
			#address-cells = <3>;
			compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
			primary;
			port = <0x0>; /* port number */
			reg = <0x00000101 0x00000000 0x0 0x10000000		/* Config space access */
			       0x00000100 0x00000000 0x0 0x00001000>;	/* UTL Registers space access */
			dcr-reg = <0x80 0x20>;

//                                pci_space  < pci_addr          > < cpu_addr          > < size       >
			ranges = <0x02000000 0x00000000 0x80000000 0x00000110 0x80000000 0x0 0x80000000
			          0x01000000 0x0        0x0        0x00000140 0x0        0x0 0x00010000>;

			/* Inbound starting at 0 to memsize filled in by zImage */
			dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;

			/* This drives busses 0 to 0xf */
			bus-range = <0x0 0xf>;

			/* Legacy interrupts (note the weird polarity, the bridge seems
			 * to invert PCIe legacy interrupts).
			 * We are de-swizzling here because the numbers are actually for
			 * port of the root complex virtual P2P bridge. But I want
			 * to avoid putting a node for it in the tree, so the numbers
			 * below are basically de-swizzled numbers.
			 * The real slot is on idsel 0, so the swizzling is 1:1
			 */
			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
			interrupt-map = <
				0x0 0x0 0x0 0x1 &MPIC 46 0x2 /* int A */
				0x0 0x0 0x0 0x2 &MPIC 47 0x2 /* int B */
				0x0 0x0 0x0 0x3 &MPIC 48 0x2 /* int C */
				0x0 0x0 0x0 0x4 &MPIC 49 0x2 /* int D */>;
		};

		PCIE1: pcie@30100000000 {		// 4xGBIF0
			device_type = "pci";
			#interrupt-cells = <1>;
			#size-cells = <2>;
			#address-cells = <3>;
			compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
			primary;
			port = <0x1>; /* port number */
			reg = <0x00000301 0x00000000 0x0 0x10000000		/* Config space access */
			       0x00000300 0x00000000 0x0 0x00001000>;	/* UTL Registers space access */
			dcr-reg = <0x60 0x20>;

			ranges = <0x02000000 0x00000000 0x80000000 0x00000310 0x80000000 0x0 0x80000000
			          0x01000000 0x0        0x0        0x00000340 0x0        0x0 0x00010000>;

			/* Inbound starting at 0 to memsize filled in by zImage */
			dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;

			/* This drives busses 0 to 0xf */
			bus-range = <0x0 0xf>;

			/* Legacy interrupts (note the weird polarity, the bridge seems
			 * to invert PCIe legacy interrupts).
			 * We are de-swizzling here because the numbers are actually for
			 * port of the root complex virtual P2P bridge. But I want
			 * to avoid putting a node for it in the tree, so the numbers
			 * below are basically de-swizzled numbers.
			 * The real slot is on idsel 0, so the swizzling is 1:1
			 */
			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
			interrupt-map = <
				0x0 0x0 0x0 0x1 &MPIC 38 0x2 /* int A */
				0x0 0x0 0x0 0x2 &MPIC 39 0x2 /* int B */
				0x0 0x0 0x0 0x3 &MPIC 40 0x2 /* int C */
				0x0 0x0 0x0 0x4 &MPIC 41 0x2 /* int D */>;
		};

		PCIE2: pcie@38100000000 {		// 2xGBIF0
			device_type = "pci";
			#interrupt-cells = <1>;
			#size-cells = <2>;
			#address-cells = <3>;
			compatible = "ibm,plb-pciex-476fpe", "ibm,plb-pciex";
			primary;
			port = <0x2>; /* port number */
			reg = <0x00000381 0x00000000 0x0 0x10000000		/* Config space access */
			       0x00000380 0x00000000 0x0 0x00001000>;	/* UTL Registers space access */
			dcr-reg = <0xA0 0x20>;

			ranges = <0x02000000 0x00000000 0x80000000 0x00000390 0x80000000 0x0 0x80000000
			          0x01000000 0x0        0x0        0x000003C0 0x0        0x0 0x00010000>;

			/* Inbound starting at 0 to memsize filled in by zImage */
			dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x0>;

			/* This drives busses 0 to 0xf */
			bus-range = <0x0 0xf>;

			/* Legacy interrupts (note the weird polarity, the bridge seems
			 * to invert PCIe legacy interrupts).
			 * We are de-swizzling here because the numbers are actually for
			 * port of the root complex virtual P2P bridge. But I want
			 * to avoid putting a node for it in the tree, so the numbers
			 * below are basically de-swizzled numbers.
			 * The real slot is on idsel 0, so the swizzling is 1:1
			 */
			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
			interrupt-map = <
				0x0 0x0 0x0 0x1 &MPIC 54 0x2 /* int A */
				0x0 0x0 0x0 0x2 &MPIC 55 0x2 /* int B */
				0x0 0x0 0x0 0x3 &MPIC 56 0x2 /* int C */
				0x0 0x0 0x0 0x4 &MPIC 57 0x2 /* int D */>;
		};

	};

	chosen {
		stdout-path = &UART0;
	};
};