| Tom Rini | 83d290c | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| wdenk | 2262cfe | 2002-11-18 00:14:45 +0000 | [diff] [blame] | 2 | /* |
| 3 | * (C) Copyright 2002 |
| Albert ARIBAUD | fa82f87 | 2011-08-04 18:45:45 +0200 | [diff] [blame] | 4 | * Daniel Engström, Omicron Ceti AB, daniel@omicron.se |
| wdenk | 2262cfe | 2002-11-18 00:14:45 +0000 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #ifndef _ASM_ZIMAGE_H_ |
| 8 | #define _ASM_ZIMAGE_H_ |
| 9 | |
| Gabe Black | 69370d1 | 2011-12-05 12:09:26 +0000 | [diff] [blame] | 10 | #include <asm/bootparam.h> |
| Gabe Black | 233dbc1 | 2011-12-05 12:09:24 +0000 | [diff] [blame] | 11 | #include <asm/e820.h> |
| 12 | |
| wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 13 | /* linux i386 zImage/bzImage header. Offsets relative to |
| wdenk | 2262cfe | 2002-11-18 00:14:45 +0000 | [diff] [blame] | 14 | * the start of the image */ |
| 15 | |
| wdenk | 2262cfe | 2002-11-18 00:14:45 +0000 | [diff] [blame] | 16 | #define HEAP_FLAG 0x80 |
| 17 | #define BIG_KERNEL_FLAG 0x01 |
| 18 | |
| 19 | /* magic numbers */ |
| 20 | #define KERNEL_MAGIC 0xaa55 |
| 21 | #define KERNEL_V2_MAGIC 0x53726448 |
| 22 | #define COMMAND_LINE_MAGIC 0xA33F |
| 23 | |
| 24 | /* limits */ |
| 25 | #define BZIMAGE_MAX_SIZE 15*1024*1024 /* 15MB */ |
| 26 | #define ZIMAGE_MAX_SIZE 512*1024 /* 512k */ |
| 27 | #define SETUP_MAX_SIZE 32768 |
| 28 | |
| 29 | #define SETUP_START_OFFSET 0x200 |
| wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 30 | #define BZIMAGE_LOAD_ADDR 0x100000 |
| wdenk | 2262cfe | 2002-11-18 00:14:45 +0000 | [diff] [blame] | 31 | #define ZIMAGE_LOAD_ADDR 0x10000 |
| wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 32 | |
| Simon Glass | 4f96023 | 2020-09-05 14:50:51 -0600 | [diff] [blame] | 33 | /** |
| 34 | * load_zimage() - Load a zImage or bzImage |
| 35 | * |
| 36 | * This copies an image into the standard location ready for setup |
| 37 | * |
| 38 | * @image: Address of image to load |
| 39 | * @kernel_size: Size of kernel including setup block (or 0 if the kernel is |
| 40 | * new enough to have a 'syssize' value) |
| 41 | * @load_addressp: Returns the address where the kernel has been loaded |
| Heinrich Schuchardt | 185f812 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 42 | * Return: address of setup block, or NULL if something went wrong |
| Simon Glass | 4f96023 | 2020-09-05 14:50:51 -0600 | [diff] [blame] | 43 | */ |
| Gabe Black | 69370d1 | 2011-12-05 12:09:26 +0000 | [diff] [blame] | 44 | struct boot_params *load_zimage(char *image, unsigned long kernel_size, |
| Simon Glass | 7653938 | 2014-10-10 08:21:56 -0600 | [diff] [blame] | 45 | ulong *load_addressp); |
| Simon Glass | 4f96023 | 2020-09-05 14:50:51 -0600 | [diff] [blame] | 46 | |
| 47 | /** |
| 48 | * setup_zimage() - Set up a loaded zImage or bzImage ready for booting |
| 49 | * |
| 50 | * @setup_base: Pointer to the boot parameters, typically at address |
| 51 | * DEFAULT_SETUP_BASE |
| 52 | * @cmd_line: Place to put the command line, or NULL to use the one in the setup |
| 53 | * block |
| 54 | * @initrd_addr: Address of the initial ramdisk, or 0 if none |
| 55 | * @initrd_size: Size of the initial ramdisk, or 0 if none |
| 56 | * @load_address: Address where the bzImage is moved before booting, either |
| 57 | * BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR |
| 58 | * @cmdline_force: Address of 'override' command line, or 0 to use the one in |
| 59 | * the * setup block |
| Heinrich Schuchardt | 185f812 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 60 | * Return: 0 (always) |
| Simon Glass | 4f96023 | 2020-09-05 14:50:51 -0600 | [diff] [blame] | 61 | */ |
| Gabe Black | 69370d1 | 2011-12-05 12:09:26 +0000 | [diff] [blame] | 62 | int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, |
| Simon Glass | 4f96023 | 2020-09-05 14:50:51 -0600 | [diff] [blame] | 63 | ulong initrd_addr, ulong initrd_size, ulong cmdline_force); |
| 64 | |
| wdenk | 2262cfe | 2002-11-18 00:14:45 +0000 | [diff] [blame] | 65 | #endif |