mirror of
https://github.com/AsahiLinux/u-boot
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cbb607d2d9
Provide an option to dump this information if available. Move the funciion prototype to the common x86 header. Allow the command line to be left out since 'bootflow info' show this itself and it is not in the correct place in memory until the kernel is actually booted. Fix a badly aligned heading while we are here. Signed-off-by: Simon Glass <sjg@chromium.org>
65 lines
2 KiB
C
65 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2002
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* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
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*/
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#ifndef _ASM_ZIMAGE_H_
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#define _ASM_ZIMAGE_H_
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#include <asm/bootparam.h>
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#include <asm/e820.h>
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/* linux i386 zImage/bzImage header. Offsets relative to
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* the start of the image */
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#define HEAP_FLAG 0x80
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#define BIG_KERNEL_FLAG 0x01
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/* magic numbers */
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#define KERNEL_MAGIC 0xaa55
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#define KERNEL_V2_MAGIC 0x53726448
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#define COMMAND_LINE_MAGIC 0xA33F
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/* limits */
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#define BZIMAGE_MAX_SIZE 15*1024*1024 /* 15MB */
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#define ZIMAGE_MAX_SIZE 512*1024 /* 512k */
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#define SETUP_MAX_SIZE 32768
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#define SETUP_START_OFFSET 0x200
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#define BZIMAGE_LOAD_ADDR 0x100000
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#define ZIMAGE_LOAD_ADDR 0x10000
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/**
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* load_zimage() - Load a zImage or bzImage
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*
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* This copies an image into the standard location ready for setup
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*
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* @image: Address of image to load
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* @kernel_size: Size of kernel including setup block (or 0 if the kernel is
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* new enough to have a 'syssize' value)
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* @load_addressp: Returns the address where the kernel has been loaded
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* Return: address of setup block, or NULL if something went wrong
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*/
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struct boot_params *load_zimage(char *image, unsigned long kernel_size,
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ulong *load_addressp);
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/**
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* setup_zimage() - Set up a loaded zImage or bzImage ready for booting
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*
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* @setup_base: Pointer to the boot parameters, typically at address
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* DEFAULT_SETUP_BASE
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* @cmd_line: Place to put the command line, or NULL to use the one in the setup
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* block
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* @initrd_addr: Address of the initial ramdisk, or 0 if none
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* @initrd_size: Size of the initial ramdisk, or 0 if none
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* @load_address: Address where the bzImage is moved before booting, either
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* BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
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* @cmdline_force: Address of 'override' command line, or 0 to use the one in
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* the * setup block
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* Return: 0 (always)
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*/
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int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
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ulong initrd_addr, ulong initrd_size, ulong cmdline_force);
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#endif
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