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kernel/linux-rt-4.4.41/arch/powerpc/boot/dts/sbc8548-altflash.dts 2.52 KB
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  /*
   * 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)
   *
   * This program is free software; you can redistribute  it and/or modify it
   * under  the terms of  the GNU General  Public License as published by the
   * Free Software Foundation;  either version 2 of the  License, or (at your
   * option) any later version.
   */
  
  
  /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@0x0 {
  				label = "space";
  				/* FC000000 -> FFEFFFFF */
  				reg = <0x00000000 0x03f00000>;
  			};
  			partition@0x03f00000 {
  				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@0x0 {
  				label = "space";
  				/* EF800000 -> EFF9FFFF */
  				reg = <0x00000000 0x007a0000>;
  			};
  			partition@0x7a0000 {
  				label = "bootloader";
  				/* EFFA0000 -> EFFFFFFF */
  				reg = <0x007a0000 0x00060000>;
  				read-only;
  			};
  		};
  
  
          };
  };
  
  /include/ "sbc8548-post.dtsi"