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u-boot/common/cmd_bootm.c
Bartlomiej Sieka edbed247a1 Memory footprint optimizations 
As suggested by Wolfgang Denk:
- image printing functions:
  - remove wrappers
  - remove indentation prefix from functions' signatures
- merge getenv_verify and getenv_autostart into one parametrized function

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
2008-04-24 17:21:55 +02:00

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/*
* (C) Copyright 2000-2006
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Boot support
*/
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <image.h>
#include <malloc.h>
#include <zlib.h>
#include <bzlib.h>
#include <environment.h>
#include <lmb.h>
#include <asm/byteorder.h>
#ifdef CFG_HUSH_PARSER
#include <hush.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
extern int gunzip (void *dst, int dstlen, unsigned char *src, unsigned long *lenp);
#ifndef CFG_BOOTM_LEN
#define CFG_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */
#endif
#ifdef CONFIG_BZIP2
extern void bz_internal_error(int);
#endif
#if defined(CONFIG_CMD_IMI)
static int image_info (unsigned long addr);
#endif
#if defined(CONFIG_CMD_IMLS)
#include <flash.h>
extern flash_info_t flash_info[]; /* info for FLASH chips */
static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
#endif
#ifdef CONFIG_SILENT_CONSOLE
static void fixup_silent_linux (void);
#endif
static image_header_t *image_get_kernel (ulong img_addr, int verify);
#if defined(CONFIG_FIT)
static int fit_check_kernel (const void *fit, int os_noffset, int verify);
#endif
static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char *argv[],
bootm_headers_t *images, ulong *os_data, ulong *os_len);
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
/*
* Continue booting an OS image; caller already has:
* - copied image header to global variable `header'
* - checked header magic number, checksums (both header & image),
* - verified image architecture (PPC) and type (KERNEL or MULTI),
* - loaded (first part of) image to header load address,
* - disabled interrupts.
*/
typedef void boot_os_fn (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images); /* pointers to os/initrd/fdt */
extern boot_os_fn do_bootm_linux;
static boot_os_fn do_bootm_netbsd;
#if defined(CONFIG_LYNXKDI)
static boot_os_fn do_bootm_lynxkdi;
extern void lynxkdi_boot (image_header_t *);
#endif
static boot_os_fn do_bootm_rtems;
#if defined(CONFIG_CMD_ELF)
static boot_os_fn do_bootm_vxworks;
static boot_os_fn do_bootm_qnxelf;
int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
#endif
#if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
static boot_os_fn do_bootm_artos;
#endif
ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
static bootm_headers_t images; /* pointers to os/initrd/fdt images */
void __board_lmb_reserve(struct lmb *lmb)
{
/* please define platform specific board_lmb_reserve() */
}
void board_lmb_reserve(struct lmb *lmb) __attribute__((weak, alias("__board_lmb_reserve")));
/*******************************************************************/
/* bootm - boot application image from image in memory */
/*******************************************************************/
int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong iflag;
const char *type_name;
uint unc_len = CFG_BOOTM_LEN;
uint8_t comp, type, os;
void *os_hdr;
ulong os_data, os_len;
ulong image_start, image_end;
ulong load_start, load_end;
ulong mem_start, mem_size;
struct lmb lmb;
memset ((void *)&images, 0, sizeof (images));
images.verify = getenv_yesno ("verify");
images.autostart = getenv_yesno ("autostart");
images.lmb = &lmb;
lmb_init(&lmb);
mem_start = getenv_bootm_low();
mem_size = getenv_bootm_size();
lmb_add(&lmb, mem_start, mem_size);
board_lmb_reserve(&lmb);
/* get kernel image header, start address and length */
os_hdr = boot_get_kernel (cmdtp, flag, argc, argv,
&images, &os_data, &os_len);
if (os_len == 0) {
puts ("ERROR: can't get kernel image!\n");
return 1;
}
/* get image parameters */
switch (genimg_get_format (os_hdr)) {
case IMAGE_FORMAT_LEGACY:
type = image_get_type (os_hdr);
comp = image_get_comp (os_hdr);
os = image_get_os (os_hdr);
image_end = image_get_image_end (os_hdr);
load_start = image_get_load (os_hdr);
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
if (fit_image_get_type (images.fit_hdr_os,
images.fit_noffset_os, &type)) {
puts ("Can't get image type!\n");
show_boot_progress (-109);
return 1;
}
if (fit_image_get_comp (images.fit_hdr_os,
images.fit_noffset_os, &comp)) {
puts ("Can't get image compression!\n");
show_boot_progress (-110);
return 1;
}
if (fit_image_get_os (images.fit_hdr_os,
images.fit_noffset_os, &os)) {
puts ("Can't get image OS!\n");
show_boot_progress (-111);
return 1;
}
image_end = fit_get_end (images.fit_hdr_os);
if (fit_image_get_load (images.fit_hdr_os, images.fit_noffset_os,
&load_start)) {
puts ("Can't get image load address!\n");
show_boot_progress (-112);
return 1;
}
break;
#endif
default:
puts ("ERROR: unknown image format type!\n");
return 1;
}
image_start = (ulong)os_hdr;
load_end = 0;
type_name = genimg_get_type_name (type);
/*
* We have reached the point of no return: we are going to
* overwrite all exception vector code, so we cannot easily
* recover from any failures any more...
*/
iflag = disable_interrupts();
#ifdef CONFIG_AMIGAONEG3SE
/*
* We've possible left the caches enabled during
* bios emulation, so turn them off again
*/
icache_disable();
invalidate_l1_instruction_cache();
flush_data_cache();
dcache_disable();
#endif
switch (comp) {
case IH_COMP_NONE:
if (load_start == (ulong)os_hdr) {
printf (" XIP %s ... ", type_name);
} else {
printf (" Loading %s ... ", type_name);
memmove_wd ((void *)load_start,
(void *)os_data, os_len, CHUNKSZ);
load_end = load_start + os_len;
puts("OK\n");
}
break;
case IH_COMP_GZIP:
printf (" Uncompressing %s ... ", type_name);
if (gunzip ((void *)load_start, unc_len,
(uchar *)os_data, &os_len) != 0) {
puts ("GUNZIP: uncompress or overwrite error "
"- must RESET board to recover\n");
show_boot_progress (-6);
do_reset (cmdtp, flag, argc, argv);
}
load_end = load_start + os_len;
break;
#ifdef CONFIG_BZIP2
case IH_COMP_BZIP2:
printf (" Uncompressing %s ... ", type_name);
/*
* If we've got less than 4 MB of malloc() space,
* use slower decompression algorithm which requires
* at most 2300 KB of memory.
*/
int i = BZ2_bzBuffToBuffDecompress ((char*)load_start,
&unc_len, (char *)os_data, os_len,
CFG_MALLOC_LEN < (4096 * 1024), 0);
if (i != BZ_OK) {
printf ("BUNZIP2: uncompress or overwrite error %d "
"- must RESET board to recover\n", i);
show_boot_progress (-6);
do_reset (cmdtp, flag, argc, argv);
}
load_end = load_start + unc_len;
break;
#endif /* CONFIG_BZIP2 */
default:
if (iflag)
enable_interrupts();
printf ("Unimplemented compression type %d\n", comp);
show_boot_progress (-7);
return 1;
}
puts ("OK\n");
debug (" kernel loaded at 0x%08lx, end = 0x%08lx\n", load_start, load_end);
show_boot_progress (7);
if ((load_start < image_end) && (load_end > image_start)) {
debug ("image_start = 0x%lX, image_end = 0x%lx\n", image_start, image_end);
debug ("load_start = 0x%lx, load_end = 0x%lx\n", load_start, load_end);
if (images.legacy_hdr_valid) {
if (image_get_type (&images.legacy_hdr_os_copy) == IH_TYPE_MULTI)
puts ("WARNING: legacy format multi component "
"image overwritten\n");
} else {
puts ("ERROR: new format image overwritten - "
"must RESET the board to recover\n");
show_boot_progress (-113);
do_reset (cmdtp, flag, argc, argv);
}
}
show_boot_progress (8);
lmb_reserve(&lmb, load_start, (load_end - load_start));
switch (os) {
default: /* handled by (original) Linux case */
case IH_OS_LINUX:
#ifdef CONFIG_SILENT_CONSOLE
fixup_silent_linux();
#endif
do_bootm_linux (cmdtp, flag, argc, argv, &images);
break;
case IH_OS_NETBSD:
do_bootm_netbsd (cmdtp, flag, argc, argv, &images);
break;
#ifdef CONFIG_LYNXKDI
case IH_OS_LYNXOS:
do_bootm_lynxkdi (cmdtp, flag, argc, argv, &images);
break;
#endif
case IH_OS_RTEMS:
do_bootm_rtems (cmdtp, flag, argc, argv, &images);
break;
#if defined(CONFIG_CMD_ELF)
case IH_OS_VXWORKS:
do_bootm_vxworks (cmdtp, flag, argc, argv, &images);
break;
case IH_OS_QNX:
do_bootm_qnxelf (cmdtp, flag, argc, argv, &images);
break;
#endif
#ifdef CONFIG_ARTOS
case IH_OS_ARTOS:
do_bootm_artos (cmdtp, flag, argc, argv, &images);
break;
#endif
}
show_boot_progress (-9);
#ifdef DEBUG
puts ("\n## Control returned to monitor - resetting...\n");
if (images.autostart)
do_reset (cmdtp, flag, argc, argv);
#endif
if (!images.autostart && iflag)
enable_interrupts();
return 1;
}
/**
* image_get_kernel - verify legacy format kernel image
* @img_addr: in RAM address of the legacy format image to be verified
* @verify: data CRC verification flag
*
* image_get_kernel() verifies legacy image integrity and returns pointer to
* legacy image header if image verification was completed successfully.
*
* returns:
* pointer to a legacy image header if valid image was found
* otherwise return NULL
*/
static image_header_t *image_get_kernel (ulong img_addr, int verify)
{
image_header_t *hdr = (image_header_t *)img_addr;
if (!image_check_magic(hdr)) {
puts ("Bad Magic Number\n");
show_boot_progress (-1);
return NULL;
}
show_boot_progress (2);
if (!image_check_hcrc (hdr)) {
puts ("Bad Header Checksum\n");
show_boot_progress (-2);
return NULL;
}
show_boot_progress (3);
image_print_contents (hdr);
if (verify) {
puts (" Verifying Checksum ... ");
if (!image_check_dcrc (hdr)) {
printf ("Bad Data CRC\n");
show_boot_progress (-3);
return NULL;
}
puts ("OK\n");
}
show_boot_progress (4);
if (!image_check_target_arch (hdr)) {
printf ("Unsupported Architecture 0x%x\n", image_get_arch (hdr));
show_boot_progress (-4);
return NULL;
}
return hdr;
}
/**
* fit_check_kernel - verify FIT format kernel subimage
* @fit_hdr: pointer to the FIT image header
* os_noffset: kernel subimage node offset within FIT image
* @verify: data CRC verification flag
*
* fit_check_kernel() verifies integrity of the kernel subimage and from
* specified FIT image.
*
* returns:
* 1, on success
* 0, on failure
*/
#if defined (CONFIG_FIT)
static int fit_check_kernel (const void *fit, int os_noffset, int verify)
{
fit_image_print (fit, os_noffset, " ");
if (verify) {
puts (" Verifying Hash Integrity ... ");
if (!fit_image_check_hashes (fit, os_noffset)) {
puts ("Bad Data Hash\n");
show_boot_progress (-104);
return 0;
}
puts ("OK\n");
}
show_boot_progress (105);
#ifdef CONFIG_LOGBUFFER
#ifndef CONFIG_ALT_LB_ADDR
kbd=gd->bd;
/* Prevent initrd from overwriting logbuffer */
if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
#else
debug ("## Logbuffer at 0x%08lX ", CONFIG_ALT_LB_ADDR);
#endif
#endif
if (!fit_image_check_target_arch (fit, os_noffset)) {
puts ("Unsupported Architecture\n");
show_boot_progress (-105);
return 0;
}
show_boot_progress (106);
if (!fit_image_check_type (fit, os_noffset, IH_TYPE_KERNEL)) {
puts ("Not a kernel image\n");
show_boot_progress (-106);
return 0;
}
show_boot_progress (107);
return 1;
}
#endif /* CONFIG_FIT */
/**
* boot_get_kernel - find kernel image
* @os_data: pointer to a ulong variable, will hold os data start address
* @os_len: pointer to a ulong variable, will hold os data length
*
* boot_get_kernel() tries to find a kernel image, verifies its integrity
* and locates kernel data.
*
* returns:
* pointer to image header if valid image was found, plus kernel start
* address and length, otherwise NULL
*/
static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
bootm_headers_t *images, ulong *os_data, ulong *os_len)
{
image_header_t *hdr;
ulong img_addr;
#if defined(CONFIG_FIT)
void *fit_hdr;
const char *fit_uname_config = NULL;
const char *fit_uname_kernel = NULL;
const void *data;
size_t len;
int cfg_noffset;
int os_noffset;
#endif
/* find out kernel image address */
if (argc < 2) {
img_addr = load_addr;
debug ("* kernel: default image load address = 0x%08lx\n",
load_addr);
#if defined(CONFIG_FIT)
} else if (fit_parse_conf (argv[1], load_addr, &img_addr,
&fit_uname_config)) {
debug ("* kernel: config '%s' from image at 0x%08lx\n",
fit_uname_config, img_addr);
} else if (fit_parse_subimage (argv[1], load_addr, &img_addr,
&fit_uname_kernel)) {
debug ("* kernel: subimage '%s' from image at 0x%08lx\n",
fit_uname_kernel, img_addr);
#endif
} else {
img_addr = simple_strtoul(argv[1], NULL, 16);
debug ("* kernel: cmdline image address = 0x%08lx\n", img_addr);
}
show_boot_progress (1);
/* copy from dataflash if needed */
img_addr = genimg_get_image (img_addr);
/* check image type, for FIT images get FIT kernel node */
*os_data = *os_len = 0;
switch (genimg_get_format ((void *)img_addr)) {
case IMAGE_FORMAT_LEGACY:
printf ("## Booting kernel from Legacy Image at %08lx ...\n",
img_addr);
hdr = image_get_kernel (img_addr, images->verify);
if (!hdr)
return NULL;
show_boot_progress (5);
/* get os_data and os_len */
switch (image_get_type (hdr)) {
case IH_TYPE_KERNEL:
*os_data = image_get_data (hdr);
*os_len = image_get_data_size (hdr);
break;
case IH_TYPE_MULTI:
image_multi_getimg (hdr, 0, os_data, os_len);
break;
default:
printf ("Wrong Image Type for %s command\n", cmdtp->name);
show_boot_progress (-5);
return NULL;
}
/*
* copy image header to allow for image overwrites during kernel
* decompression.
*/
memmove (&images->legacy_hdr_os_copy, hdr, sizeof(image_header_t));
/* save pointer to image header */
images->legacy_hdr_os = hdr;
images->legacy_hdr_valid = 1;
show_boot_progress (6);
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
fit_hdr = (void *)img_addr;
printf ("## Booting kernel from FIT Image at %08lx ...\n",
img_addr);
if (!fit_check_format (fit_hdr)) {
puts ("Bad FIT kernel image format!\n");
show_boot_progress (-100);
return NULL;
}
show_boot_progress (100);
if (!fit_uname_kernel) {
/*
* no kernel image node unit name, try to get config
* node first. If config unit node name is NULL
* fit_conf_get_node() will try to find default config node
*/
show_boot_progress (101);
cfg_noffset = fit_conf_get_node (fit_hdr, fit_uname_config);
if (cfg_noffset < 0) {
show_boot_progress (-101);
return NULL;
}
/* save configuration uname provided in the first
* bootm argument
*/
images->fit_uname_cfg = fdt_get_name (fit_hdr, cfg_noffset, NULL);
printf (" Using '%s' configuration\n", images->fit_uname_cfg);
show_boot_progress (103);
os_noffset = fit_conf_get_kernel_node (fit_hdr, cfg_noffset);
fit_uname_kernel = fit_get_name (fit_hdr, os_noffset, NULL);
} else {
/* get kernel component image node offset */
show_boot_progress (102);
os_noffset = fit_image_get_node (fit_hdr, fit_uname_kernel);
}
if (os_noffset < 0) {
show_boot_progress (-103);
return NULL;
}
printf (" Trying '%s' kernel subimage\n", fit_uname_kernel);
show_boot_progress (104);
if (!fit_check_kernel (fit_hdr, os_noffset, images->verify))
return NULL;
/* get kernel image data address and length */
if (fit_image_get_data (fit_hdr, os_noffset, &data, &len)) {
puts ("Could not find kernel subimage data!\n");
show_boot_progress (-107);
return NULL;
}
show_boot_progress (108);
*os_len = len;
*os_data = (ulong)data;
images->fit_hdr_os = fit_hdr;
images->fit_uname_os = fit_uname_kernel;
images->fit_noffset_os = os_noffset;
break;
#endif
default:
printf ("Wrong Image Format for %s command\n", cmdtp->name);
show_boot_progress (-108);
return NULL;
}
debug (" kernel data at 0x%08lx, len = 0x%08lx (%d)\n",
*os_data, *os_len, *os_len);
return (void *)img_addr;
}
U_BOOT_CMD(
bootm, CFG_MAXARGS, 1, do_bootm,
"bootm - boot application image from memory\n",
"[addr [arg ...]]\n - boot application image stored in memory\n"
"\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
"\t'arg' can be the address of an initrd image\n"
#if defined(CONFIG_OF_LIBFDT)
"\tWhen booting a Linux kernel which requires a flat device-tree\n"
"\ta third argument is required which is the address of the\n"
"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
"\tuse a '-' for the second argument. If you do not pass a third\n"
"\ta bd_info struct will be passed instead\n"
#endif
#if defined(CONFIG_FIT)
"\t\nFor the new multi component uImage format (FIT) addresses\n"
"\tmust be extened to include component or configuration unit name:\n"
"\taddr:<subimg_uname> - direct component image specification\n"
"\taddr#<conf_uname> - configuration specification\n"
"\tUse iminfo command to get the list of existing component\n"
"\timages and configurations.\n"
#endif
);
/*******************************************************************/
/* bootd - boot default image */
/*******************************************************************/
#if defined(CONFIG_CMD_BOOTD)
int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int rcode = 0;
#ifndef CFG_HUSH_PARSER
if (run_command (getenv ("bootcmd"), flag) < 0)
rcode = 1;
#else
if (parse_string_outer (getenv ("bootcmd"),
FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
rcode = 1;
#endif
return rcode;
}
U_BOOT_CMD(
boot, 1, 1, do_bootd,
"boot - boot default, i.e., run 'bootcmd'\n",
NULL
);
/* keep old command name "bootd" for backward compatibility */
U_BOOT_CMD(
bootd, 1, 1, do_bootd,
"bootd - boot default, i.e., run 'bootcmd'\n",
NULL
);
#endif
/*******************************************************************/
/* iminfo - print header info for a requested image */
/*******************************************************************/
#if defined(CONFIG_CMD_IMI)
int do_iminfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int arg;
ulong addr;
int rcode = 0;
if (argc < 2) {
return image_info (load_addr);
}
for (arg = 1; arg < argc; ++arg) {
addr = simple_strtoul (argv[arg], NULL, 16);
if (image_info (addr) != 0)
rcode = 1;
}
return rcode;
}
static int image_info (ulong addr)
{
void *hdr = (void *)addr;
printf ("\n## Checking Image at %08lx ...\n", addr);
switch (genimg_get_format (hdr)) {
case IMAGE_FORMAT_LEGACY:
puts (" Legacy image found\n");
if (!image_check_magic (hdr)) {
puts (" Bad Magic Number\n");
return 1;
}
if (!image_check_hcrc (hdr)) {
puts (" Bad Header Checksum\n");
return 1;
}
image_print_contents (hdr);
puts (" Verifying Checksum ... ");
if (!image_check_dcrc (hdr)) {
puts (" Bad Data CRC\n");
return 1;
}
puts ("OK\n");
return 0;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
puts (" FIT image found\n");
if (!fit_check_format (hdr)) {
puts ("Bad FIT image format!\n");
return 1;
}
fit_print_contents (hdr);
return 0;
#endif
default:
puts ("Unknown image format!\n");
break;
}
return 1;
}
U_BOOT_CMD(
iminfo, CFG_MAXARGS, 1, do_iminfo,
"iminfo - print header information for application image\n",
"addr [addr ...]\n"
" - print header information for application image starting at\n"
" address 'addr' in memory; this includes verification of the\n"
" image contents (magic number, header and payload checksums)\n"
);
#endif
/*******************************************************************/
/* imls - list all images found in flash */
/*******************************************************************/
#if defined(CONFIG_CMD_IMLS)
int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
flash_info_t *info;
int i, j;
void *hdr;
for (i = 0, info = &flash_info[0];
i < CFG_MAX_FLASH_BANKS; ++i, ++info) {
if (info->flash_id == FLASH_UNKNOWN)
goto next_bank;
for (j = 0; j < info->sector_count; ++j) {
hdr = (void *)info->start[j];
if (!hdr)
goto next_sector;
switch (genimg_get_format (hdr)) {
case IMAGE_FORMAT_LEGACY:
if (!image_check_hcrc (hdr))
goto next_sector;
printf ("Legacy Image at %08lX:\n", (ulong)hdr);
image_print_contents (hdr);
puts (" Verifying Checksum ... ");
if (!image_check_dcrc (hdr)) {
puts ("Bad Data CRC\n");
} else {
puts ("OK\n");
}
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
if (!fit_check_format (hdr))
goto next_sector;
printf ("FIT Image at %08lX:\n", (ulong)hdr);
fit_print_contents (hdr);
break;
#endif
default:
goto next_sector;
}
next_sector: ;
}
next_bank: ;
}
return (0);
}
U_BOOT_CMD(
imls, 1, 1, do_imls,
"imls - list all images found in flash\n",
"\n"
" - Prints information about all images found at sector\n"
" boundaries in flash.\n"
);
#endif
/*******************************************************************/
/* helper routines */
/*******************************************************************/
#ifdef CONFIG_SILENT_CONSOLE
static void fixup_silent_linux ()
{
char buf[256], *start, *end;
char *cmdline = getenv ("bootargs");
/* Only fix cmdline when requested */
if (!(gd->flags & GD_FLG_SILENT))
return;
debug ("before silent fix-up: %s\n", cmdline);
if (cmdline) {
if ((start = strstr (cmdline, "console=")) != NULL) {
end = strchr (start, ' ');
strncpy (buf, cmdline, (start - cmdline + 8));
if (end)
strcpy (buf + (start - cmdline + 8), end);
else
buf[start - cmdline + 8] = '\0';
} else {
strcpy (buf, cmdline);
strcat (buf, " console=");
}
} else {
strcpy (buf, "console=");
}
setenv ("bootargs", buf);
debug ("after silent fix-up: %s\n", buf);
}
#endif /* CONFIG_SILENT_CONSOLE */
/*******************************************************************/
/* OS booting routines */
/*******************************************************************/
static void do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images)
{
void (*loader)(bd_t *, image_header_t *, char *, char *);
image_header_t *os_hdr, *hdr;
ulong kernel_data, kernel_len;
char *consdev;
char *cmdline;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset ("NetBSD");
do_reset (cmdtp, flag, argc, argv);
}
#endif
hdr = images->legacy_hdr_os;
/*
* Booting a (NetBSD) kernel image
*
* This process is pretty similar to a standalone application:
* The (first part of an multi-) image must be a stage-2 loader,
* which in turn is responsible for loading & invoking the actual
* kernel. The only differences are the parameters being passed:
* besides the board info strucure, the loader expects a command
* line, the name of the console device, and (optionally) the
* address of the original image header.
*/
os_hdr = NULL;
if (image_check_type (&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
image_multi_getimg (hdr, 1, &kernel_data, &kernel_len);
if (kernel_len)
os_hdr = hdr;
}
consdev = "";
#if defined (CONFIG_8xx_CONS_SMC1)
consdev = "smc1";
#elif defined (CONFIG_8xx_CONS_SMC2)
consdev = "smc2";
#elif defined (CONFIG_8xx_CONS_SCC2)
consdev = "scc2";
#elif defined (CONFIG_8xx_CONS_SCC3)
consdev = "scc3";
#endif
if (argc > 2) {
ulong len;
int i;
for (i = 2, len = 0; i < argc; i += 1)
len += strlen (argv[i]) + 1;
cmdline = malloc (len);
for (i = 2, len = 0; i < argc; i += 1) {
if (i > 2)
cmdline[len++] = ' ';
strcpy (&cmdline[len], argv[i]);
len += strlen (argv[i]);
}
} else if ((cmdline = getenv ("bootargs")) == NULL) {
cmdline = "";
}
loader = (void (*)(bd_t *, image_header_t *, char *, char *))image_get_ep (hdr);
printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
(ulong)loader);
show_boot_progress (15);
/*
* NetBSD Stage-2 Loader Parameters:
* r3: ptr to board info data
* r4: image address
* r5: console device
* r6: boot args string
*/
(*loader) (gd->bd, os_hdr, consdev, cmdline);
}
#ifdef CONFIG_LYNXKDI
static void do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images)
{
image_header_t *hdr = &images->legacy_hdr_os_copy;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset ("Lynx");
do_reset (cmdtp, flag, argc, argv);
}
#endif
lynxkdi_boot ((image_header_t *)hdr);
}
#endif /* CONFIG_LYNXKDI */
static void do_bootm_rtems (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images)
{
image_header_t *hdr = &images->legacy_hdr_os_copy;
void (*entry_point)(bd_t *);
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset ("RTEMS");
do_reset (cmdtp, flag, argc, argv);
}
#endif
entry_point = (void (*)(bd_t *))image_get_ep (hdr);
printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
(ulong)entry_point);
show_boot_progress (15);
/*
* RTEMS Parameters:
* r3: ptr to board info data
*/
(*entry_point)(gd->bd);
}
#if defined(CONFIG_CMD_ELF)
static void do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images)
{
char str[80];
image_header_t *hdr = &images->legacy_hdr_os_copy;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset ("VxWorks");
do_reset (cmdtp, flag, argc, argv);
}
#endif
sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
setenv("loadaddr", str);
do_bootvx(cmdtp, 0, 0, NULL);
}
static void do_bootm_qnxelf(cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images)
{
char *local_args[2];
char str[16];
image_header_t *hdr = &images->legacy_hdr_os_copy;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset ("QNX");
do_reset (cmdtp, flag, argc, argv);
}
#endif
sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
local_args[0] = argv[0];
local_args[1] = str; /* and provide it via the arguments */
do_bootelf(cmdtp, 0, 2, local_args);
}
#endif
#if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
static void do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
bootm_headers_t *images)
{
ulong top;
char *s, *cmdline;
char **fwenv, **ss;
int i, j, nxt, len, envno, envsz;
bd_t *kbd;
void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
image_header_t *hdr = &images->legacy_hdr_os_copy;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset ("ARTOS");
do_reset (cmdtp, flag, argc, argv);
}
#endif
/*
* Booting an ARTOS kernel image + application
*/
/* this used to be the top of memory, but was wrong... */
#ifdef CONFIG_PPC
/* get stack pointer */
asm volatile ("mr %0,1" : "=r"(top) );
#endif
debug ("## Current stack ends at 0x%08lX ", top);
top -= 2048; /* just to be sure */
if (top > CFG_BOOTMAPSZ)
top = CFG_BOOTMAPSZ;
top &= ~0xF;
debug ("=> set upper limit to 0x%08lX\n", top);
/* first check the artos specific boot args, then the linux args*/
if ((s = getenv( "abootargs")) == NULL && (s = getenv ("bootargs")) == NULL)
s = "";
/* get length of cmdline, and place it */
len = strlen (s);
top = (top - (len + 1)) & ~0xF;
cmdline = (char *)top;
debug ("## cmdline at 0x%08lX ", top);
strcpy (cmdline, s);
/* copy bdinfo */
top = (top - sizeof (bd_t)) & ~0xF;
debug ("## bd at 0x%08lX ", top);
kbd = (bd_t *)top;
memcpy (kbd, gd->bd, sizeof (bd_t));
/* first find number of env entries, and their size */
envno = 0;
envsz = 0;
for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
;
envno++;
envsz += (nxt - i) + 1; /* plus trailing zero */
}
envno++; /* plus the terminating zero */
debug ("## %u envvars total size %u ", envno, envsz);
top = (top - sizeof (char **) * envno) & ~0xF;
fwenv = (char **)top;
debug ("## fwenv at 0x%08lX ", top);
top = (top - envsz) & ~0xF;
s = (char *)top;
ss = fwenv;
/* now copy them */
for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
;
*ss++ = s;
for (j = i; j < nxt; ++j)
*s++ = env_get_char (j);
*s++ = '\0';
}
*ss++ = NULL; /* terminate */
entry = (void (*)(bd_t *, char *, char **, ulong))image_get_ep (hdr);
(*entry) (kbd, cmdline, fwenv, top);
}
#endif
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