mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-07 05:34:28 +00:00
4f96023afd
When booting Chrome OS images the command line is stored separately from the kernel. Add a way to specify this address so that images boot correctly. Also add comments to the zimage.h header. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> [bmeng: adjust maxargs to 8 for 'zboot start'] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2002
|
|
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
|
|
*/
|
|
|
|
#ifndef _ASM_ZIMAGE_H_
|
|
#define _ASM_ZIMAGE_H_
|
|
|
|
#include <asm/bootparam.h>
|
|
#include <asm/e820.h>
|
|
|
|
/* linux i386 zImage/bzImage header. Offsets relative to
|
|
* the start of the image */
|
|
|
|
#define HEAP_FLAG 0x80
|
|
#define BIG_KERNEL_FLAG 0x01
|
|
|
|
/* magic numbers */
|
|
#define KERNEL_MAGIC 0xaa55
|
|
#define KERNEL_V2_MAGIC 0x53726448
|
|
#define COMMAND_LINE_MAGIC 0xA33F
|
|
|
|
/* limits */
|
|
#define BZIMAGE_MAX_SIZE 15*1024*1024 /* 15MB */
|
|
#define ZIMAGE_MAX_SIZE 512*1024 /* 512k */
|
|
#define SETUP_MAX_SIZE 32768
|
|
|
|
#define SETUP_START_OFFSET 0x200
|
|
#define BZIMAGE_LOAD_ADDR 0x100000
|
|
#define ZIMAGE_LOAD_ADDR 0x10000
|
|
|
|
/**
|
|
* load_zimage() - Load a zImage or bzImage
|
|
*
|
|
* This copies an image into the standard location ready for setup
|
|
*
|
|
* @image: Address of image to load
|
|
* @kernel_size: Size of kernel including setup block (or 0 if the kernel is
|
|
* new enough to have a 'syssize' value)
|
|
* @load_addressp: Returns the address where the kernel has been loaded
|
|
* @return address of setup block, or NULL if something went wrong
|
|
*/
|
|
struct boot_params *load_zimage(char *image, unsigned long kernel_size,
|
|
ulong *load_addressp);
|
|
|
|
/**
|
|
* setup_zimage() - Set up a loaded zImage or bzImage ready for booting
|
|
*
|
|
* @setup_base: Pointer to the boot parameters, typically at address
|
|
* DEFAULT_SETUP_BASE
|
|
* @cmd_line: Place to put the command line, or NULL to use the one in the setup
|
|
* block
|
|
* @initrd_addr: Address of the initial ramdisk, or 0 if none
|
|
* @initrd_size: Size of the initial ramdisk, or 0 if none
|
|
* @load_address: Address where the bzImage is moved before booting, either
|
|
* BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
|
|
* @cmdline_force: Address of 'override' command line, or 0 to use the one in
|
|
* the * setup block
|
|
* @return 0 (always)
|
|
*/
|
|
int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
|
|
ulong initrd_addr, ulong initrd_size, ulong cmdline_force);
|
|
|
|
void setup_video(struct screen_info *screen_info);
|
|
void setup_efi_info(struct efi_info *efi_info);
|
|
|
|
#endif
|