[people/ms/u-boot.git] / include / image.h

/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#ifndef __IMAGE_H__
#define __IMAGE_H__

/*
 * Operating System Codes
 */
#define IH_OS_INVALID		0	/* Invalid OS	*/
#define IH_OS_OPENBSD		1	/* OpenBSD	*/
#define IH_OS_NETBSD		2	/* NetBSD	*/
#define IH_OS_FREEBSD		3	/* FreeBSD	*/
#define IH_OS_4_4BSD		4	/* 4.4BSD	*/
#define IH_OS_LINUX		5	/* Linux	*/
#define IH_OS_SVR4		6	/* SVR4		*/
#define IH_OS_ESIX		7	/* Esix		*/
#define IH_OS_SOLARIS		8	/* Solaris	*/
#define IH_OS_IRIX		9	/* Irix		*/
#define IH_OS_SCO		10	/* SCO		*/
#define IH_OS_DELL		11	/* Dell		*/
#define IH_OS_NCR		12	/* NCR		*/
#define IH_OS_LYNXOS		13	/* LynxOS	*/
#define IH_OS_VXWORKS		14	/* VxWorks	*/
#define IH_OS_PSOS		15	/* pSOS		*/
#define IH_OS_QNX		16	/* QNX		*/
#define IH_OS_U_BOOT		17	/* Firmware	*/

/*
 * CPU Architecture Codes (supported by Linux)
 */
#define IH_CPU_INVALID		0	/* Invalid CPU	*/
#define IH_CPU_ALPHA		1	/* Alpha	*/
#define IH_CPU_ARM		2	/* ARM		*/
#define IH_CPU_I386		3	/* Intel x86	*/
#define IH_CPU_IA64		4	/* IA64		*/
#define IH_CPU_MIPS		5	/* MIPS		*/
#define IH_CPU_MIPS64		6	/* MIPS	 64 Bit */
#define IH_CPU_PPC		7	/* PowerPC	*/
#define IH_CPU_S390		8	/* IBM S390	*/
#define IH_CPU_SH		9	/* SuperH	*/
#define IH_CPU_SPARC		10	/* Sparc	*/
#define IH_CPU_SPARC64		11	/* Sparc 64 Bit */

/*
 * Image Types
 *
 * "Standalone Programs" are directly runnable in the environment
 *	provided by U-Boot; it is expected that (if they behave
 *	well) you can continue to work in U-Boot after return from
 *	the Standalone Program.
 * "OS Kernel Images" are usually images of some Embedded OS which
 *	will take over control completely. Usually these programs
 *	will install their own set of exception handlers, device
 *	drivers, set up the MMU, etc. - this means, that you cannot
 *	expect to re-enter U-Boot except by resetting the CPU.
 * "RAMDisk Images" are more or less just data blocks, and their
 *	parameters (address, size) are passed to an OS kernel that is
 *	being started.
 * "Multi-File Images" contain several images, typically an OS
 *	(Linux) kernel image and one or more data images like
 *	RAMDisks. This construct is useful for instance when you want
 *	to boot over the network using BOOTP etc., where the boot
 *	server provides just a single image file, but you want to get
 *	for instance an OS kernel and a RAMDisk image.
 *
 *	"Multi-File Images" start with a list of image sizes, each
 *	image size (in bytes) specified by an "uint32_t" in network
 *	byte order. This list is terminated by an "(uint32_t)0".
 *	Immediately after the terminating 0 follow the images, one by
 *	one, all aligned on "uint32_t" boundaries (size rounded up to
 *	a multiple of 4 bytes).
 *
 * "Firmware Images" are binary images containing firmware (like
 *	U-Boot or FPGA images) which usually will be programmed to
 *	flash memory.
 *
 * "Script files" are command sequences that will be executed by
 *	U-Boot's command interpreter; this feature is especially
 *	useful when you configure U-Boot to use a real shell (hush)
 *	as command interpreter.
 */

#define IH_TYPE_INVALID		0	/* Invalid Image		*/
#define IH_TYPE_STANDALONE	1	/* Standalone Program		*/
#define IH_TYPE_KERNEL		2	/* OS Kernel Image		*/
#define IH_TYPE_RAMDISK		3	/* RAMDisk Image		*/
#define IH_TYPE_MULTI		4	/* Multi-File Image		*/
#define IH_TYPE_FIRMWARE	5	/* Firmware Image		*/
#define IH_TYPE_SCRIPT		6	/* Script file			*/

/*
 * Compression Types
 */
#define IH_COMP_NONE		0	/*  No	 Compression Used	*/
#define IH_COMP_GZIP		1	/* gzip	 Compression Used	*/
#define IH_COMP_BZIP2		2	/* bzip2 Compression Used	*/

#define IH_MAGIC	0x27051956	/* Image Magic Number		*/
#define IH_NMLEN		32	/* Image Name Length		*/

#ifdef __CYGWIN__
typedef unsigned long uint32_t;
typedef unsigned char uint8_t;
#endif /* __CYGWIN__ */

/*
 * all data in network byte order (aka natural aka bigendian)
 */

typedef struct image_header {
	uint32_t	ih_magic;	/* Image Header Magic Number	*/
	uint32_t	ih_hcrc;	/* Image Header CRC Checksum	*/
	uint32_t	ih_time;	/* Image Creation Timestamp	*/
	uint32_t	ih_size;	/* Image Data Size		*/
	uint32_t	ih_load;	/* Data	 Load  Address		*/
	uint32_t	ih_ep;		/* Entry Point Address		*/
	uint32_t	ih_dcrc;	/* Image Data CRC Checksum	*/
	uint8_t		ih_os;		/* Operating System		*/
	uint8_t		ih_arch;	/* CPU architecture		*/
	uint8_t		ih_type;	/* Image Type			*/
	uint8_t		ih_comp;	/* Compression Type		*/
	uint8_t		ih_name[IH_NMLEN];	/* Image Name		*/
} image_header_t;


#endif	/* __IMAGE_H__ */
Commit	Line	Data
5b1d7137 WD	1	/*
	2	* (C) Copyright 2000
	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
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#ifndef __IMAGE_H__
	25	#define __IMAGE_H__
	26
	27	/*
	28	* Operating System Codes
	29	*/
	30	#define IH_OS_INVALID 0 /* Invalid OS */
	31	#define IH_OS_OPENBSD 1 /* OpenBSD */
	32	#define IH_OS_NETBSD 2 /* NetBSD */
	33	#define IH_OS_FREEBSD 3 /* FreeBSD */
	34	#define IH_OS_4_4BSD 4 /* 4.4BSD */
	35	#define IH_OS_LINUX 5 /* Linux */
	36	#define IH_OS_SVR4 6 /* SVR4 */
	37	#define IH_OS_ESIX 7 /* Esix */
	38	#define IH_OS_SOLARIS 8 /* Solaris */
	39	#define IH_OS_IRIX 9 /* Irix */
	40	#define IH_OS_SCO 10 /* SCO */
	41	#define IH_OS_DELL 11 /* Dell */
	42	#define IH_OS_NCR 12 /* NCR */
	43	#define IH_OS_LYNXOS 13 /* LynxOS */
	44	#define IH_OS_VXWORKS 14 /* VxWorks */
	45	#define IH_OS_PSOS 15 /* pSOS */
	46	#define IH_OS_QNX 16 /* QNX */
	47	#define IH_OS_U_BOOT 17 /* Firmware */
	48
	49	/*
	50	* CPU Architecture Codes (supported by Linux)
	51	*/
	52	#define IH_CPU_INVALID 0 /* Invalid CPU */
	53	#define IH_CPU_ALPHA 1 /* Alpha */
	54	#define IH_CPU_ARM 2 /* ARM */
	55	#define IH_CPU_I386 3 /* Intel x86 */
	56	#define IH_CPU_IA64 4 /* IA64 */
	57	#define IH_CPU_MIPS 5 /* MIPS */
	58	#define IH_CPU_MIPS64 6 /* MIPS 64 Bit */
	59	#define IH_CPU_PPC 7 /* PowerPC */
	60	#define IH_CPU_S390 8 /* IBM S390 */
	61	#define IH_CPU_SH 9 /* SuperH */
	62	#define IH_CPU_SPARC 10 /* Sparc */
	63	#define IH_CPU_SPARC64 11 /* Sparc 64 Bit */
	64
65	/*
66	* Image Types
67	*
68	* "Standalone Programs" are directly runnable in the environment
69	* provided by U-Boot; it is expected that (if they behave
70	* well) you can continue to work in U-Boot after return from
71	* the Standalone Program.
72	* "OS Kernel Images" are usually images of some Embedded OS which
73	* will take over control completely. Usually these programs
74	* will install their own set of exception handlers, device
75	* drivers, set up the MMU, etc. - this means, that you cannot
76	* expect to re-enter U-Boot except by resetting the CPU.
77	* "RAMDisk Images" are more or less just data blocks, and their
78	* parameters (address, size) are passed to an OS kernel that is
79	* being started.
80	* "Multi-File Images" contain several images, typically an OS
81	* (Linux) kernel image and one or more data images like
82	* RAMDisks. This construct is useful for instance when you want
83	* to boot over the network using BOOTP etc., where the boot
84	* server provides just a single image file, but you want to get
85	* for instance an OS kernel and a RAMDisk image.
86	*
87	* "Multi-File Images" start with a list of image sizes, each
88	* image size (in bytes) specified by an "uint32_t" in network
89	* byte order. This list is terminated by an "(uint32_t)0".
90	* Immediately after the terminating 0 follow the images, one by
91	* one, all aligned on "uint32_t" boundaries (size rounded up to
92	* a multiple of 4 bytes).
93	*
94	* "Firmware Images" are binary images containing firmware (like
95	* U-Boot or FPGA images) which usually will be programmed to
96	* flash memory.
97	*
98	* "Script files" are command sequences that will be executed by
99	* U-Boot's command interpreter; this feature is especially
100	* useful when you configure U-Boot to use a real shell (hush)
101	* as command interpreter.
102	*/
103
104	#define IH_TYPE_INVALID 0 /* Invalid Image */
105	#define IH_TYPE_STANDALONE 1 /* Standalone Program */
106	#define IH_TYPE_KERNEL 2 /* OS Kernel Image */
107	#define IH_TYPE_RAMDISK 3 /* RAMDisk Image */
108	#define IH_TYPE_MULTI 4 /* Multi-File Image */
109	#define IH_TYPE_FIRMWARE 5 /* Firmware Image */
110	#define IH_TYPE_SCRIPT 6 /* Script file */
111
112	/*
113	* Compression Types
114	*/
115	#define IH_COMP_NONE 0 /* No Compression Used */
116	#define IH_COMP_GZIP 1 /* gzip Compression Used */
117	#define IH_COMP_BZIP2 2 /* bzip2 Compression Used */
118
119	#define IH_MAGIC 0x27051956 /* Image Magic Number */
120	#define IH_NMLEN 32 /* Image Name Length */
121
122	#ifdef __CYGWIN__
123	typedef unsigned long uint32_t;
124	typedef unsigned char uint8_t;
125	#endif /* __CYGWIN__ */
126
127	/*
128	* all data in network byte order (aka natural aka bigendian)
129	*/
130
131	typedef struct image_header {
132	uint32_t ih_magic; /* Image Header Magic Number */
133	uint32_t ih_hcrc; /* Image Header CRC Checksum */
134	uint32_t ih_time; /* Image Creation Timestamp */
135	uint32_t ih_size; /* Image Data Size */
136	uint32_t ih_load; /* Data Load Address */
137	uint32_t ih_ep; /* Entry Point Address */
138	uint32_t ih_dcrc; /* Image Data CRC Checksum */
139	uint8_t ih_os; /* Operating System */
140	uint8_t ih_arch; /* CPU architecture */
141	uint8_t ih_type; /* Image Type */
142	uint8_t ih_comp; /* Compression Type */
143	uint8_t ih_name[IH_NMLEN]; /* Image Name */
144	} image_header_t;
145
146
147	#endif /* __IMAGE_H__ */