File:  [Qemu by Fabrice Bellard] / qemu / uboot_image.h
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 17:20:32 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1101, qemu1001, qemu1000, qemu0151, qemu0150, qemu0141, qemu0140, qemu0130, qemu0125, qemu0124, qemu0123, qemu0122, qemu0121, qemu0120, qemu0111, qemu0110, HEAD
qemu 0.11.0

    1: /*
    2:  * (C) Copyright 2000-2005
    3:  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
    4:  *
    5:  * See file CREDITS for list of people who contributed to this
    6:  * project.
    7:  *
    8:  * This program is free software; you can redistribute it and/or
    9:  * modify it under the terms of the GNU General Public License as
   10:  * published by the Free Software Foundation; either version 2 of
   11:  * the License, or (at your option) any later version.
   12:  *
   13:  * This program is distributed in the hope that it will be useful,
   14:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   15:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
   16:  * GNU General Public License for more details.
   17:  *
   18:  * You should have received a copy of the GNU General Public License along
   19:  * with this program; if not, see <http://www.gnu.org/licenses/>.
   20:  *
   21:  ********************************************************************
   22:  * NOTE: This header file defines an interface to U-Boot. Including
   23:  * this (unmodified) header file in another file is considered normal
   24:  * use of U-Boot, and does *not* fall under the heading of "derived
   25:  * work".
   26:  ********************************************************************
   27:  */
   28: 
   29: #ifndef __UBOOT_IMAGE_H__
   30: #define __UBOOT_IMAGE_H__
   31: 
   32: /*
   33:  * Operating System Codes
   34:  */
   35: #define IH_OS_INVALID		0	/* Invalid OS	*/
   36: #define IH_OS_OPENBSD		1	/* OpenBSD	*/
   37: #define IH_OS_NETBSD		2	/* NetBSD	*/
   38: #define IH_OS_FREEBSD		3	/* FreeBSD	*/
   39: #define IH_OS_4_4BSD		4	/* 4.4BSD	*/
   40: #define IH_OS_LINUX		5	/* Linux	*/
   41: #define IH_OS_SVR4		6	/* SVR4		*/
   42: #define IH_OS_ESIX		7	/* Esix		*/
   43: #define IH_OS_SOLARIS		8	/* Solaris	*/
   44: #define IH_OS_IRIX		9	/* Irix		*/
   45: #define IH_OS_SCO		10	/* SCO		*/
   46: #define IH_OS_DELL		11	/* Dell		*/
   47: #define IH_OS_NCR		12	/* NCR		*/
   48: #define IH_OS_LYNXOS		13	/* LynxOS	*/
   49: #define IH_OS_VXWORKS		14	/* VxWorks	*/
   50: #define IH_OS_PSOS		15	/* pSOS		*/
   51: #define IH_OS_QNX		16	/* QNX		*/
   52: #define IH_OS_U_BOOT		17	/* Firmware	*/
   53: #define IH_OS_RTEMS		18	/* RTEMS	*/
   54: #define IH_OS_ARTOS		19	/* ARTOS	*/
   55: #define IH_OS_UNITY		20	/* Unity OS	*/
   56: 
   57: /*
   58:  * CPU Architecture Codes (supported by Linux)
   59:  */
   60: #define IH_CPU_INVALID		0	/* Invalid CPU	*/
   61: #define IH_CPU_ALPHA		1	/* Alpha	*/
   62: #define IH_CPU_ARM		2	/* ARM		*/
   63: #define IH_CPU_I386		3	/* Intel x86	*/
   64: #define IH_CPU_IA64		4	/* IA64		*/
   65: #define IH_CPU_MIPS		5	/* MIPS		*/
   66: #define IH_CPU_MIPS64		6	/* MIPS	 64 Bit */
   67: #define IH_CPU_PPC		7	/* PowerPC	*/
   68: #define IH_CPU_S390		8	/* IBM S390	*/
   69: #define IH_CPU_SH		9	/* SuperH	*/
   70: #define IH_CPU_SPARC		10	/* Sparc	*/
   71: #define IH_CPU_SPARC64		11	/* Sparc 64 Bit */
   72: #define IH_CPU_M68K		12	/* M68K		*/
   73: #define IH_CPU_NIOS		13	/* Nios-32	*/
   74: #define IH_CPU_MICROBLAZE	14	/* MicroBlaze   */
   75: #define IH_CPU_NIOS2		15	/* Nios-II	*/
   76: #define IH_CPU_BLACKFIN		16	/* Blackfin	*/
   77: #define IH_CPU_AVR32		17	/* AVR32	*/
   78: 
   79: /*
   80:  * Image Types
   81:  *
   82:  * "Standalone Programs" are directly runnable in the environment
   83:  *	provided by U-Boot; it is expected that (if they behave
   84:  *	well) you can continue to work in U-Boot after return from
   85:  *	the Standalone Program.
   86:  * "OS Kernel Images" are usually images of some Embedded OS which
   87:  *	will take over control completely. Usually these programs
   88:  *	will install their own set of exception handlers, device
   89:  *	drivers, set up the MMU, etc. - this means, that you cannot
   90:  *	expect to re-enter U-Boot except by resetting the CPU.
   91:  * "RAMDisk Images" are more or less just data blocks, and their
   92:  *	parameters (address, size) are passed to an OS kernel that is
   93:  *	being started.
   94:  * "Multi-File Images" contain several images, typically an OS
   95:  *	(Linux) kernel image and one or more data images like
   96:  *	RAMDisks. This construct is useful for instance when you want
   97:  *	to boot over the network using BOOTP etc., where the boot
   98:  *	server provides just a single image file, but you want to get
   99:  *	for instance an OS kernel and a RAMDisk image.
  100:  *
  101:  *	"Multi-File Images" start with a list of image sizes, each
  102:  *	image size (in bytes) specified by an "uint32_t" in network
  103:  *	byte order. This list is terminated by an "(uint32_t)0".
  104:  *	Immediately after the terminating 0 follow the images, one by
  105:  *	one, all aligned on "uint32_t" boundaries (size rounded up to
  106:  *	a multiple of 4 bytes - except for the last file).
  107:  *
  108:  * "Firmware Images" are binary images containing firmware (like
  109:  *	U-Boot or FPGA images) which usually will be programmed to
  110:  *	flash memory.
  111:  *
  112:  * "Script files" are command sequences that will be executed by
  113:  *	U-Boot's command interpreter; this feature is especially
  114:  *	useful when you configure U-Boot to use a real shell (hush)
  115:  *	as command interpreter (=> Shell Scripts).
  116:  */
  117: 
  118: #define IH_TYPE_INVALID		0	/* Invalid Image		*/
  119: #define IH_TYPE_STANDALONE	1	/* Standalone Program		*/
  120: #define IH_TYPE_KERNEL		2	/* OS Kernel Image		*/
  121: #define IH_TYPE_RAMDISK		3	/* RAMDisk Image		*/
  122: #define IH_TYPE_MULTI		4	/* Multi-File Image		*/
  123: #define IH_TYPE_FIRMWARE	5	/* Firmware Image		*/
  124: #define IH_TYPE_SCRIPT		6	/* Script file			*/
  125: #define IH_TYPE_FILESYSTEM	7	/* Filesystem Image (any type)	*/
  126: #define IH_TYPE_FLATDT		8	/* Binary Flat Device Tree Blob	*/
  127: 
  128: /*
  129:  * Compression Types
  130:  */
  131: #define IH_COMP_NONE		0	/*  No	 Compression Used	*/
  132: #define IH_COMP_GZIP		1	/* gzip	 Compression Used	*/
  133: #define IH_COMP_BZIP2		2	/* bzip2 Compression Used	*/
  134: 
  135: #define IH_MAGIC	0x27051956	/* Image Magic Number		*/
  136: #define IH_NMLEN		32	/* Image Name Length		*/
  137: 
  138: /*
  139:  * all data in network byte order (aka natural aka bigendian)
  140:  */
  141: 
  142: typedef struct uboot_image_header {
  143: 	uint32_t	ih_magic;	/* Image Header Magic Number	*/
  144: 	uint32_t	ih_hcrc;	/* Image Header CRC Checksum	*/
  145: 	uint32_t	ih_time;	/* Image Creation Timestamp	*/
  146: 	uint32_t	ih_size;	/* Image Data Size		*/
  147: 	uint32_t	ih_load;	/* Data	 Load  Address		*/
  148: 	uint32_t	ih_ep;		/* Entry Point Address		*/
  149: 	uint32_t	ih_dcrc;	/* Image Data CRC Checksum	*/
  150: 	uint8_t		ih_os;		/* Operating System		*/
  151: 	uint8_t		ih_arch;	/* CPU architecture		*/
  152: 	uint8_t		ih_type;	/* Image Type			*/
  153: 	uint8_t		ih_comp;	/* Compression Type		*/
  154: 	uint8_t		ih_name[IH_NMLEN];	/* Image Name		*/
  155: } uboot_image_header_t;
  156: 
  157: 
  158: #endif	/* __IMAGE_H__ */

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