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u-boot/common/cmd_bootm.c

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Initial revision
2002-11-03 00:01:44 +00:00
/*
* (C) Copyright 2000-2002
* 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 <cmd_boot.h>
#include <image.h>
#include <malloc.h>
#include <zlib.h>
#include <asm/byteorder.h>
#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
#include <rtc.h>
#endif
#ifdef CFG_HUSH_PARSER
#include <hush.h>
#endif
#ifdef CONFIG_SHOW_BOOT_PROGRESS
# include <status_led.h>
# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
#else
# define SHOW_BOOT_PROGRESS(arg)
#endif
#ifdef CFG_INIT_RAM_LOCK
#include <asm/cache.h>
#endif
/*
* Some systems (for example LWMON) have very short watchdog periods;
* we must make sure to split long operations like memmove() or
* crc32() into reasonable chunks.
*/
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
# define CHUNKSZ (64 * 1024)
#endif
int gunzip (void *, int, unsigned char *, int *);
static void *zalloc(void *, unsigned, unsigned);
static void zfree(void *, void *, unsigned);
#if (CONFIG_COMMANDS & CFG_CMD_IMI)
static int image_info (unsigned long addr);
#endif
static void print_type (image_header_t *hdr);
/*
* 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_Fcn (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
ulong addr, /* of image to boot */
ulong *len_ptr, /* multi-file image length table */
int verify); /* getenv("verify")[0] != 'n' */
#ifndef CONFIG_ARM
static boot_os_Fcn do_bootm_linux;
#else
extern boot_os_Fcn do_bootm_linux;
#endif
static boot_os_Fcn do_bootm_netbsd;
#if (CONFIG_COMMANDS & CFG_CMD_ELF)
static boot_os_Fcn do_bootm_vxworks;
static boot_os_Fcn 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 /* CFG_CMD_ELF */
image_header_t header;
ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong iflag;
ulong addr;
ulong data, len, checksum;
ulong *len_ptr;
int i, verify;
char *name, *s;
int (*appl)(cmd_tbl_t *, int, int, char *[]);
image_header_t *hdr = &header;
s = getenv ("verify");
verify = (s && (*s == 'n')) ? 0 : 1;
if (argc < 2) {
addr = load_addr;
} else {
addr = simple_strtoul(argv[1], NULL, 16);
}
SHOW_BOOT_PROGRESS (1);
printf ("## Booting image at %08lx ...\n", addr);
/* Copy header so we can blank CRC field for re-calculation */
memmove (&header, (char *)addr, sizeof(image_header_t));
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
printf ("Bad Magic Number\n");
SHOW_BOOT_PROGRESS (-1);
return 1;
}
SHOW_BOOT_PROGRESS (2);
data = (ulong)&header;
len = sizeof(image_header_t);
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
if (crc32 (0, (char *)data, len) != checksum) {
printf ("Bad Header Checksum\n");
SHOW_BOOT_PROGRESS (-2);
return 1;
}
SHOW_BOOT_PROGRESS (3);
/* for multi-file images we need the data part, too */
print_image_hdr ((image_header_t *)addr);
data = addr + sizeof(image_header_t);
len = ntohl(hdr->ih_size);
if (verify) {
printf (" Verifying Checksum ... ");
if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {
printf ("Bad Data CRC\n");
SHOW_BOOT_PROGRESS (-3);
return 1;
}
printf ("OK\n");
}
SHOW_BOOT_PROGRESS (4);
len_ptr = (ulong *)data;
if (hdr->ih_arch != IH_CPU_PPC && hdr->ih_arch != IH_CPU_ARM) {
printf ("Unsupported Architecture\n");
SHOW_BOOT_PROGRESS (-4);
return 1;
}
SHOW_BOOT_PROGRESS (5);
switch (hdr->ih_type) {
case IH_TYPE_STANDALONE: name = "Standalone Application";
break;
case IH_TYPE_KERNEL: name = "Kernel Image";
break;
case IH_TYPE_MULTI: name = "Multi-File Image";
len = ntohl(len_ptr[0]);
/* OS kernel is always the first image */
data += 8; /* kernel_len + terminator */
for (i=1; len_ptr[i]; ++i)
data += 4;
break;
default: printf ("Wrong Image Type for %s command\n", cmdtp->name);
SHOW_BOOT_PROGRESS (-5);
return 1;
}
SHOW_BOOT_PROGRESS (6);
/*
* 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();
switch (hdr->ih_comp) {
case IH_COMP_NONE:
if(hdr->ih_load == addr) {
printf (" XIP %s ... ", name);
} else {
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
size_t l = len;
void *to = (void *)ntohl(hdr->ih_load);
void *from = (void *)data;
printf (" Loading %s ... ", name);
while (l > 0) {
size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
WATCHDOG_RESET();
memmove (to, from, tail);
to += tail;
from += tail;
l -= tail;
}
#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
}
break;
case IH_COMP_GZIP:
printf (" Uncompressing %s ... ", name);
if (gunzip ((void *)ntohl(hdr->ih_load), 0x400000,
(uchar *)data, (int *)&len) != 0) {
printf ("GUNZIP ERROR - must RESET board to recover\n");
SHOW_BOOT_PROGRESS (-6);
do_reset (cmdtp, flag, argc, argv);
}
break;
default:
if (iflag)
enable_interrupts();
printf ("Unimplemented compression type %d\n", hdr->ih_comp);
SHOW_BOOT_PROGRESS (-7);
return 1;
}
printf ("OK\n");
SHOW_BOOT_PROGRESS (7);
switch (hdr->ih_type) {
case IH_TYPE_STANDALONE:
appl = (int (*)(cmd_tbl_t *, int, int, char *[]))ntohl(hdr->ih_ep);
if (iflag)
enable_interrupts();
(*appl)(cmdtp, flag, argc-1, &argv[1]);
break;
case IH_TYPE_KERNEL:
case IH_TYPE_MULTI:
/* handled below */
break;
default:
if (iflag)
enable_interrupts();
printf ("Can't boot image type %d\n", hdr->ih_type);
SHOW_BOOT_PROGRESS (-8);
return 1;
}
SHOW_BOOT_PROGRESS (8);
switch (hdr->ih_os) {
default: /* handled by (original) Linux case */
case IH_OS_LINUX:
do_bootm_linux (cmdtp, flag, argc, argv,
addr, len_ptr, verify);
break;
case IH_OS_NETBSD:
do_bootm_netbsd (cmdtp, flag, argc, argv,
addr, len_ptr, verify);
break;
#if (CONFIG_COMMANDS & CFG_CMD_ELF)
case IH_OS_VXWORKS:
do_bootm_vxworks (cmdtp, flag, argc, argv,
addr, len_ptr, verify);
break;
case IH_OS_QNX:
do_bootm_qnxelf (cmdtp, flag, argc, argv,
addr, len_ptr, verify);
break;
#endif /* CFG_CMD_ELF */
}
SHOW_BOOT_PROGRESS (-9);
#ifdef DEBUG
printf ("\n## Control returned to monitor - resetting...\n");
do_reset (cmdtp, flag, argc, argv);
#endif
return 1;
}
#ifndef CONFIG_ARM
static void
do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
ulong addr,
ulong *len_ptr,
int verify)
{
DECLARE_GLOBAL_DATA_PTR;
ulong sp;
ulong len, checksum;
ulong initrd_start, initrd_end;
ulong cmd_start, cmd_end;
ulong initrd_high;
ulong data;
char *cmdline;
char *s;
bd_t *kbd;
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
image_header_t *hdr = &header;
if ((s = getenv ("initrd_high")) != NULL) {
/* a value of "no" or a similar string will act like 0,
* turning the "load high" feature off. This is intentional.
*/
initrd_high = simple_strtoul(s, NULL, 16);
} else { /* not set, no restrictions to load high */
initrd_high = ~0;
}
/*
* Booting a (Linux) kernel image
*
* Allocate space for command line and board info - the
* address should be as high as possible within the reach of
* the kernel (see CFG_BOOTMAPSZ settings), but in unused
* memory, which means far enough below the current stack
* pointer.
*/
asm( "mr %0,1": "=r"(sp) : );
#ifdef DEBUG
printf ("## Current stack ends at 0x%08lX ", sp);
#endif
sp -= 2048; /* just to be sure */
if (sp > CFG_BOOTMAPSZ)
sp = CFG_BOOTMAPSZ;
sp &= ~0xF;
#ifdef DEBUG
printf ("=> set upper limit to 0x%08lX\n", sp);
#endif
cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
if ((s = getenv("bootargs")) == NULL)
s = "";
strcpy (cmdline, s);
cmd_start = (ulong)&cmdline[0];
cmd_end = cmd_start + strlen(cmdline);
*kbd = *(gd->bd);
#ifdef DEBUG
printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
do_bdinfo (NULL, 0, 0, NULL);
#endif
if ((s = getenv ("clocks_in_mhz")) != NULL) {
/* convert all clock information to MHz */
kbd->bi_intfreq /= 1000000L;
kbd->bi_busfreq /= 1000000L;
#if defined(CONFIG_8260)
kbd->bi_cpmfreq /= 1000000L;
kbd->bi_brgfreq /= 1000000L;
kbd->bi_sccfreq /= 1000000L;
kbd->bi_vco /= 1000000L;
#endif /* CONFIG_8260 */
}
kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))hdr->ih_ep;
/*
* Check if there is an initrd image
*/
if (argc >= 3) {
SHOW_BOOT_PROGRESS (9);
addr = simple_strtoul(argv[2], NULL, 16);
printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
/* Copy header so we can blank CRC field for re-calculation */
memmove (&header, (char *)addr, sizeof(image_header_t));
if (hdr->ih_magic != IH_MAGIC) {
printf ("Bad Magic Number\n");
SHOW_BOOT_PROGRESS (-10);
do_reset (cmdtp, flag, argc, argv);
}
data = (ulong)&header;
len = sizeof(image_header_t);
checksum = hdr->ih_hcrc;
hdr->ih_hcrc = 0;
if (crc32 (0, (char *)data, len) != checksum) {
printf ("Bad Header Checksum\n");
SHOW_BOOT_PROGRESS (-11);
do_reset (cmdtp, flag, argc, argv);
}
SHOW_BOOT_PROGRESS (10);
print_image_hdr (hdr);
data = addr + sizeof(image_header_t);
len = hdr->ih_size;
if (verify) {
ulong csum = 0;
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
ulong cdata = data, edata = cdata + len;
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
printf (" Verifying Checksum ... ");
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
while (cdata < edata) {
ulong chunk = edata - cdata;
if (chunk > CHUNKSZ)
chunk = CHUNKSZ;
csum = crc32 (csum, (char *)cdata, chunk);
cdata += chunk;
WATCHDOG_RESET();
}
#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
csum = crc32 (0, (char *)data, len);
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
if (csum != hdr->ih_dcrc) {
printf ("Bad Data CRC\n");
SHOW_BOOT_PROGRESS (-12);
do_reset (cmdtp, flag, argc, argv);
}
printf ("OK\n");
}
SHOW_BOOT_PROGRESS (11);
if ((hdr->ih_os != IH_OS_LINUX) ||
(hdr->ih_arch != IH_CPU_PPC) ||
(hdr->ih_type != IH_TYPE_RAMDISK) ) {
printf ("No Linux PPC Ramdisk Image\n");
SHOW_BOOT_PROGRESS (-13);
do_reset (cmdtp, flag, argc, argv);
}
/*
* Now check if we have a multifile image
*/
} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
u_long tail = ntohl(len_ptr[0]) % 4;
int i;
SHOW_BOOT_PROGRESS (13);
/* skip kernel length and terminator */
data = (ulong)(&len_ptr[2]);
/* skip any additional image length fields */
for (i=1; len_ptr[i]; ++i)
data += 4;
/* add kernel length, and align */
data += ntohl(len_ptr[0]);
if (tail) {
data += 4 - tail;
}
len = ntohl(len_ptr[1]);
} else {
/*
* no initrd image
*/
SHOW_BOOT_PROGRESS (14);
len = data = 0;
}
#ifdef DEBUG
if (!data) {
printf ("No initrd\n");
}
#endif
if (data) {
initrd_start = (ulong)kbd - len;
initrd_start &= ~(4096 - 1); /* align on page */
if (initrd_high) {
ulong nsp;
/*
* the inital ramdisk does not need to be within
* CFG_BOOTMAPSZ as it is not accessed until after
* the mm system is initialised.
*
* do the stack bottom calculation again and see if
* the initrd will fit just below the monitor stack
* bottom without overwriting the area allocated
* above for command line args and board info.
*/
asm( "mr %0,1": "=r"(nsp) : );
nsp -= 2048; /* just to be sure */
nsp &= ~0xF;
if (nsp > initrd_high) /* limit as specified */
nsp = initrd_high;
nsp -= len;
nsp &= ~(4096 - 1); /* align on page */
if (nsp >= sp)
initrd_start = nsp;
}
SHOW_BOOT_PROGRESS (12);
#ifdef DEBUG
printf ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
data, data + len - 1, len, len);
#endif
initrd_end = initrd_start + len;
printf (" Loading Ramdisk to %08lx, end %08lx ... ",
initrd_start, initrd_end);
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
{
size_t l = len;
void *to = (void *)initrd_start;
void *from = (void *)data;
while (l > 0) {
size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
WATCHDOG_RESET();
memmove (to, from, tail);
to += tail;
from += tail;
l -= tail;
}
}
#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
memmove ((void *)initrd_start, (void *)data, len);
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
printf ("OK\n");
} else {
initrd_start = 0;
initrd_end = 0;
}
#ifdef DEBUG
printf ("## Transferring control to Linux (at address %08lx) ...\n",
(ulong)kernel);
#endif
SHOW_BOOT_PROGRESS (15);
#ifdef CFG_INIT_RAM_LOCK
unlock_ram_in_cache();
#endif
/*
* Linux Kernel Parameters:
* r3: ptr to board info data
* r4: initrd_start or 0 if no initrd
* r5: initrd_end - unused if r4 is 0
* r6: Start of command line string
* r7: End of command line string
*/
(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
}
#endif /* CONFIG_ARM */
static void
do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
ulong addr,
ulong *len_ptr,
int verify)
{
DECLARE_GLOBAL_DATA_PTR;
image_header_t *hdr = &header;
void (*loader)(bd_t *, image_header_t *, char *, char *);
image_header_t *img_addr;
char *consdev;
char *cmdline;
/*
* 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.
*/
img_addr = 0;
if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]))
img_addr = (image_header_t *) addr;
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 *)) hdr->ih_ep;
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, img_addr, consdev, cmdline);
}
#if (CONFIG_COMMANDS & CFG_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;
}
#endif
#if (CONFIG_COMMANDS & CFG_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)
{
ulong data, len, checksum;
image_header_t *hdr = &header;
printf ("\n## Checking Image at %08lx ...\n", addr);
/* Copy header so we can blank CRC field for re-calculation */
memmove (&header, (char *)addr, sizeof(image_header_t));
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
printf (" Bad Magic Number\n");
return 1;
}
data = (ulong)&header;
len = sizeof(image_header_t);
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
if (crc32 (0, (char *)data, len) != checksum) {
printf (" Bad Header Checksum\n");
return 1;
}
/* for multi-file images we need the data part, too */
print_image_hdr ((image_header_t *)addr);
data = addr + sizeof(image_header_t);
len = ntohl(hdr->ih_size);
printf (" Verifying Checksum ... ");
if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {
printf (" Bad Data CRC\n");
return 1;
}
printf ("OK\n");
return 0;
}
#endif /* CFG_CMD_IMI */
void
print_image_hdr (image_header_t *hdr)
{
#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
time_t timestamp = (time_t)ntohl(hdr->ih_time);
struct rtc_time tm;
#endif
printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
to_tm (timestamp, &tm);
printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
tm.tm_year, tm.tm_mon, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec);
#endif /* CFG_CMD_DATE, CONFIG_TIMESTAMP */
printf (" Image Type: "); print_type(hdr); printf ("\n");
printf (" Data Size: %d Bytes = ", ntohl(hdr->ih_size));
print_size (ntohl(hdr->ih_size), "\n");
printf (" Load Address: %08x\n", ntohl(hdr->ih_load));
printf (" Entry Point: %08x\n", ntohl(hdr->ih_ep));
if (hdr->ih_type == IH_TYPE_MULTI) {
int i;
ulong len;
ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t));
printf (" Contents:\n");
for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) {
printf (" Image %d: %8ld Bytes = ", i, len);
print_size (len, "\n");
}
}
}
static void
print_type (image_header_t *hdr)
{
char *os, *arch, *type, *comp;
switch (hdr->ih_os) {
case IH_OS_INVALID: os = "Invalid OS"; break;
case IH_OS_NETBSD: os = "NetBSD"; break;
case IH_OS_LINUX: os = "Linux"; break;
case IH_OS_VXWORKS: os = "VxWorks"; break;
case IH_OS_QNX: os = "QNX"; break;
case IH_OS_U_BOOT: os = "U-Boot"; break;
default: os = "Unknown OS"; break;
}
switch (hdr->ih_arch) {
case IH_CPU_INVALID: arch = "Invalid CPU"; break;
case IH_CPU_ALPHA: arch = "Alpha"; break;
case IH_CPU_ARM: arch = "ARM"; break;
case IH_CPU_I386: arch = "Intel x86"; break;
case IH_CPU_IA64: arch = "IA64"; break;
case IH_CPU_MIPS: arch = "MIPS"; break;
case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break;
case IH_CPU_PPC: arch = "PowerPC"; break;
case IH_CPU_S390: arch = "IBM S390"; break;
case IH_CPU_SH: arch = "SuperH"; break;
case IH_CPU_SPARC: arch = "SPARC"; break;
case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break;
default: arch = "Unknown Architecture"; break;
}
switch (hdr->ih_type) {
case IH_TYPE_INVALID: type = "Invalid Image"; break;
case IH_TYPE_STANDALONE:type = "Standalone Program"; break;
case IH_TYPE_KERNEL: type = "Kernel Image"; break;
case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break;
case IH_TYPE_MULTI: type = "Multi-File Image"; break;
case IH_TYPE_FIRMWARE: type = "Firmware"; break;
case IH_TYPE_SCRIPT: type = "Script"; break;
default: type = "Unknown Image"; break;
}
switch (hdr->ih_comp) {
case IH_COMP_NONE: comp = "uncompressed"; break;
case IH_COMP_GZIP: comp = "gzip compressed"; break;
case IH_COMP_BZIP2: comp = "bzip2 compressed"; break;
default: comp = "unknown compression"; break;
}
printf ("%s %s %s (%s)", arch, os, type, comp);
}
#define ZALLOC_ALIGNMENT 16
static void *zalloc(void *x, unsigned items, unsigned size)
{
void *p;
size *= items;
size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
p = malloc (size);
return (p);
}
static void zfree(void *x, void *addr, unsigned nb)
{
free (addr);
}
#define HEAD_CRC 2
#define EXTRA_FIELD 4
#define ORIG_NAME 8
#define COMMENT 0x10
#define RESERVED 0xe0
#define DEFLATED 8
int gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
{
z_stream s;
int r, i, flags;
/* skip header */
i = 10;
flags = src[3];
if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
printf ("Error: Bad gzipped data\n");
return (-1);
}
if ((flags & EXTRA_FIELD) != 0)
i = 12 + src[10] + (src[11] << 8);
if ((flags & ORIG_NAME) != 0)
while (src[i++] != 0)
;
if ((flags & COMMENT) != 0)
while (src[i++] != 0)
;
if ((flags & HEAD_CRC) != 0)
i += 2;
if (i >= *lenp) {
printf ("Error: gunzip out of data in header\n");
return (-1);
}
s.zalloc = zalloc;
s.zfree = zfree;
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
s.outcb = (cb_func)WATCHDOG_RESET;
#else
s.outcb = Z_NULL;
#endif /* CONFIG_HW_WATCHDOG */
r = inflateInit2(&s, -MAX_WBITS);
if (r != Z_OK) {
printf ("Error: inflateInit2() returned %d\n", r);
return (-1);
}
s.next_in = src + i;
s.avail_in = *lenp - i;
s.next_out = dst;
s.avail_out = dstlen;
r = inflate(&s, Z_FINISH);
if (r != Z_OK && r != Z_STREAM_END) {
printf ("Error: inflate() returned %d\n", r);
return (-1);
}
*lenp = s.next_out - (unsigned char *) dst;
inflateEnd(&s);
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_ELF)
static void
do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
ulong addr, ulong *len_ptr, int verify)
{
image_header_t *hdr = &header;
char str[80];
sprintf(str, "%x", hdr->ih_ep); /* 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[],
ulong addr, ulong *len_ptr, int verify)
{
image_header_t *hdr = &header;
char *local_args[2];
char str[16];
sprintf(str, "%x", hdr->ih_ep); /* 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 /* CFG_CMD_ELF */
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