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/*
 * (C) Copyright 2000-2005
 * 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, see <http://www.gnu.org/licenses/>.
 *
 ********************************************************************
 * NOTE: This header file defines an interface to U-Boot. Including
 * this (unmodified) header file in another file is considered normal
 * use of U-Boot, and does *not* fall under the heading of "derived
 * work".
 ********************************************************************
 */


#ifndef __UBOOT_IMAGE_H__
#define __UBOOT_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     */
#define IH_OS_RTEMS             18      /* RTEMS        */
#define IH_OS_ARTOS             19      /* ARTOS        */
#define IH_OS_UNITY             20      /* Unity OS     */

/*
 * 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 */
#define IH_CPU_M68K             12      /* M68K         */
#define IH_CPU_NIOS             13      /* Nios-32      */
#define IH_CPU_MICROBLAZE       14      /* MicroBlaze   */
#define IH_CPU_NIOS2            15      /* Nios-II      */
#define IH_CPU_BLACKFIN         16      /* Blackfin     */
#define IH_CPU_AVR32            17      /* AVR32        */

/*
 * 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 - except for the last file).
 *
 * "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 (=> Shell Scripts).
 */


#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                  */
#define IH_TYPE_FILESYSTEM      7       /* Filesystem Image (any type)  */
#define IH_TYPE_FLATDT          8       /* Binary Flat Device Tree Blob */

/*
 * 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            */

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


typedef struct uboot_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           */
} uboot_image_header_t;


#endif  /* __IMAGE_H__ */