OpenCloudOS-Kernel/arch/powerpc/boot/dts/sbc8548-altflash.dts

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * SBC8548 Device Tree Source
 *
 * Configured for booting off the alternate (64MB SODIMM) flash.
 * Requires switching JP12 jumpers and changing SW2.8 setting.
 *
 * Copyright 2013 Wind River Systems Inc.
 *
 * Paul Gortmaker (see MAINTAINERS for contact information)
 */


/dts-v1/;

/include/ "sbc8548-pre.dtsi"

/{
	localbus@e0000000 {
		#address-cells = <2>;
		#size-cells = <1>;
		compatible = "simple-bus";
		reg = <0xe0000000 0x5000>;
		interrupt-parent = <&mpic>;

		ranges = <0x0 0x0 0xfc000000 0x04000000		/*64MB Flash*/
			  0x3 0x0 0xf0000000 0x04000000		/*64MB SDRAM*/
			  0x4 0x0 0xf4000000 0x04000000 	/*64MB SDRAM*/
			  0x5 0x0 0xf8000000 0x00b10000		/* EPLD */
			  0x6 0x0 0xef800000 0x00800000>;	/*8MB Flash*/

		flash@0,0 {
			#address-cells = <1>;
			#size-cells = <1>;
			reg = <0x0 0x0 0x04000000>;
			compatible = "intel,JS28F128", "cfi-flash";
			bank-width = <4>;
			device-width = <1>;
			partition@0 {
				label = "space";
				/* FC000000 -> FFEFFFFF */
				reg = <0x00000000 0x03f00000>;
			};
			partition@3f00000 {
				label = "bootloader";
				/* FFF00000 -> FFFFFFFF */
				reg = <0x03f00000 0x00100000>;
				read-only;
			};
                };


		epld@5,0 {
			compatible = "wrs,epld-localbus";
			#address-cells = <2>;
			#size-cells = <1>;
			reg = <0x5 0x0 0x00b10000>;
			ranges = <
				0x0 0x0 0x5 0x000000 0x1fff	/* LED */
				0x1 0x0 0x5 0x100000 0x1fff	/* Switches */
				0x3 0x0 0x5 0x300000 0x1fff	/* HW Rev. */
				0xb 0x0	0x5 0xb00000 0x1fff	/* EEPROM */
			>;

			led@0,0 {
				compatible = "led";
				reg = <0x0 0x0 0x1fff>;
			};

			switches@1,0 {
				compatible = "switches";
				reg = <0x1 0x0 0x1fff>;
			};

			hw-rev@3,0 {
				compatible = "hw-rev";
				reg = <0x3 0x0 0x1fff>;
			};

			eeprom@b,0 {
				compatible = "eeprom";
				reg = <0xb 0 0x1fff>;
			};

		};

		alt-flash@6,0 {
			#address-cells = <1>;
			#size-cells = <1>;
			compatible = "intel,JS28F640", "cfi-flash";
			reg = <0x6 0x0 0x800000>;
			bank-width = <1>;
			device-width = <1>;
			partition@0 {
				label = "space";
				/* EF800000 -> EFF9FFFF */
				reg = <0x00000000 0x007a0000>;
			};
			partition@7a0000 {
				label = "bootloader";
				/* EFFA0000 -> EFFFFFFF */
				reg = <0x007a0000 0x00060000>;
				read-only;
			};
		};


        };
};

/include/ "sbc8548-post.dtsi"