f831f955d4
noload kernels are loaded with the u-boot image header and as a result the header size needs adding to the entry point. Fake up a hdr so the kernel image is loaded at the right address and the entry point is adjusted appropriately. The default location for the uboot file is 32MiB above bottom of DRAM. This matches the recommendation in Documentation/arm/Booting. Clarify the load_uimage API to state the passing of a load address when an image doesn't specify one, or when loading a ramdisk is expected. Adjust callers of load_uimage, etc. Signed-off-by: Nick Hudson <skrll@netbsd.org> Message-id: 11488a08-1fe0-a278-2210-deb64731107f@gmx.co.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
160 lines
6.0 KiB
C
160 lines
6.0 KiB
C
/*
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* (C) Copyright 2000-2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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********************************************************************
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* NOTE: This header file defines an interface to U-Boot. Including
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* this (unmodified) header file in another file is considered normal
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* use of U-Boot, and does *not* fall under the heading of "derived
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* work".
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********************************************************************
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*/
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#ifndef UBOOT_IMAGE_H
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#define UBOOT_IMAGE_H
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/*
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* Operating System Codes
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*/
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#define IH_OS_INVALID 0 /* Invalid OS */
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#define IH_OS_OPENBSD 1 /* OpenBSD */
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#define IH_OS_NETBSD 2 /* NetBSD */
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#define IH_OS_FREEBSD 3 /* FreeBSD */
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#define IH_OS_4_4BSD 4 /* 4.4BSD */
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#define IH_OS_LINUX 5 /* Linux */
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#define IH_OS_SVR4 6 /* SVR4 */
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#define IH_OS_ESIX 7 /* Esix */
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#define IH_OS_SOLARIS 8 /* Solaris */
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#define IH_OS_IRIX 9 /* Irix */
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#define IH_OS_SCO 10 /* SCO */
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#define IH_OS_DELL 11 /* Dell */
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#define IH_OS_NCR 12 /* NCR */
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#define IH_OS_LYNXOS 13 /* LynxOS */
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#define IH_OS_VXWORKS 14 /* VxWorks */
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#define IH_OS_PSOS 15 /* pSOS */
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#define IH_OS_QNX 16 /* QNX */
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#define IH_OS_U_BOOT 17 /* Firmware */
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#define IH_OS_RTEMS 18 /* RTEMS */
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#define IH_OS_ARTOS 19 /* ARTOS */
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#define IH_OS_UNITY 20 /* Unity OS */
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/*
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* CPU Architecture Codes (supported by Linux)
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*/
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#define IH_CPU_INVALID 0 /* Invalid CPU */
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#define IH_CPU_ALPHA 1 /* Alpha */
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#define IH_CPU_ARM 2 /* ARM */
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#define IH_CPU_I386 3 /* Intel x86 */
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#define IH_CPU_IA64 4 /* IA64 */
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#define IH_CPU_MIPS 5 /* MIPS */
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#define IH_CPU_MIPS64 6 /* MIPS 64 Bit */
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#define IH_CPU_PPC 7 /* PowerPC */
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#define IH_CPU_S390 8 /* IBM S390 */
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#define IH_CPU_SH 9 /* SuperH */
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#define IH_CPU_SPARC 10 /* Sparc */
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#define IH_CPU_SPARC64 11 /* Sparc 64 Bit */
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#define IH_CPU_M68K 12 /* M68K */
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#define IH_CPU_NIOS 13 /* Nios-32 */
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#define IH_CPU_MICROBLAZE 14 /* MicroBlaze */
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#define IH_CPU_NIOS2 15 /* Nios-II */
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#define IH_CPU_BLACKFIN 16 /* Blackfin */
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#define IH_CPU_AVR32 17 /* AVR32 */
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/*
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* Image Types
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*
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* "Standalone Programs" are directly runnable in the environment
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* provided by U-Boot; it is expected that (if they behave
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* well) you can continue to work in U-Boot after return from
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* the Standalone Program.
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* "OS Kernel Images" are usually images of some Embedded OS which
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* will take over control completely. Usually these programs
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* will install their own set of exception handlers, device
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* drivers, set up the MMU, etc. - this means, that you cannot
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* expect to re-enter U-Boot except by resetting the CPU.
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* "RAMDisk Images" are more or less just data blocks, and their
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* parameters (address, size) are passed to an OS kernel that is
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* being started.
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* "Multi-File Images" contain several images, typically an OS
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* (Linux) kernel image and one or more data images like
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* RAMDisks. This construct is useful for instance when you want
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* to boot over the network using BOOTP etc., where the boot
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* server provides just a single image file, but you want to get
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* for instance an OS kernel and a RAMDisk image.
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*
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* "Multi-File Images" start with a list of image sizes, each
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* image size (in bytes) specified by an "uint32_t" in network
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* byte order. This list is terminated by an "(uint32_t)0".
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* Immediately after the terminating 0 follow the images, one by
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* one, all aligned on "uint32_t" boundaries (size rounded up to
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* a multiple of 4 bytes - except for the last file).
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*
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* "Firmware Images" are binary images containing firmware (like
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* U-Boot or FPGA images) which usually will be programmed to
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* flash memory.
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*
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* "Script files" are command sequences that will be executed by
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* U-Boot's command interpreter; this feature is especially
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* useful when you configure U-Boot to use a real shell (hush)
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* as command interpreter (=> Shell Scripts).
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*/
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#define IH_TYPE_INVALID 0 /* Invalid Image */
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#define IH_TYPE_STANDALONE 1 /* Standalone Program */
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#define IH_TYPE_KERNEL 2 /* OS Kernel Image */
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#define IH_TYPE_RAMDISK 3 /* RAMDisk Image */
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#define IH_TYPE_MULTI 4 /* Multi-File Image */
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#define IH_TYPE_FIRMWARE 5 /* Firmware Image */
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#define IH_TYPE_SCRIPT 6 /* Script file */
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#define IH_TYPE_FILESYSTEM 7 /* Filesystem Image (any type) */
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#define IH_TYPE_FLATDT 8 /* Binary Flat Device Tree Blob */
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#define IH_TYPE_KERNEL_NOLOAD 14 /* OS Kernel Image (noload) */
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/*
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* Compression Types
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*/
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#define IH_COMP_NONE 0 /* No Compression Used */
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#define IH_COMP_GZIP 1 /* gzip Compression Used */
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#define IH_COMP_BZIP2 2 /* bzip2 Compression Used */
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#define IH_MAGIC 0x27051956 /* Image Magic Number */
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#define IH_NMLEN 32 /* Image Name Length */
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/*
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* all data in network byte order (aka natural aka bigendian)
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*/
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typedef struct uboot_image_header {
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uint32_t ih_magic; /* Image Header Magic Number */
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uint32_t ih_hcrc; /* Image Header CRC Checksum */
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uint32_t ih_time; /* Image Creation Timestamp */
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uint32_t ih_size; /* Image Data Size */
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uint32_t ih_load; /* Data Load Address */
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uint32_t ih_ep; /* Entry Point Address */
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uint32_t ih_dcrc; /* Image Data CRC Checksum */
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uint8_t ih_os; /* Operating System */
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uint8_t ih_arch; /* CPU architecture */
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uint8_t ih_type; /* Image Type */
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uint8_t ih_comp; /* Compression Type */
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uint8_t ih_name[IH_NMLEN]; /* Image Name */
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} uboot_image_header_t;
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#endif /* UBOOT_IMAGE_H */
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