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u-boot/common/image.c
Marian Balakowicz 5dfb521386 [new uImage] New uImage low-level API 
Add FDT-based functions for handling new format component images,
configurations, node operations, property get/set, etc.

fit_        - routines handling global new format uImage operations
              like get/set top level property, process all nodes, etc.
fit_image_  - routines handling component images subnodes
fit_conf_   - routines handling configurations node

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Signed-off-by: Marian Balakowicz <m8@semihalf.com>
2008-03-10 17:51:07 +01:00

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/*
* (C) Copyright 2008 Semihalf
*
* (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
*/
#define DEBUG
#ifndef USE_HOSTCC
#include <common.h>
#include <watchdog.h>
#ifdef CONFIG_SHOW_BOOT_PROGRESS
#include <status_led.h>
#endif
#ifdef CONFIG_HAS_DATAFLASH
#include <dataflash.h>
#endif
#ifdef CONFIG_LOGBUFFER
#include <logbuff.h>
#endif
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
#include <rtc.h>
#endif
#include <image.h>
#if defined(CONFIG_FIT)
#include <fdt.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <sha1.h>
#endif
#ifdef CONFIG_CMD_BDI
extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
#endif
DECLARE_GLOBAL_DATA_PTR;
static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
ulong rd_addr, uint8_t arch, int verify);
#else
#include "mkimage.h"
#include <time.h>
#include <image.h>
#endif /* !USE_HOSTCC*/
typedef struct table_entry {
int id; /* as defined in image.h */
char *sname; /* short (input) name */
char *lname; /* long (output) name */
} table_entry_t;
static table_entry_t uimage_arch[] = {
{ IH_ARCH_INVALID, NULL, "Invalid ARCH", },
{ IH_ARCH_ALPHA, "alpha", "Alpha", },
{ IH_ARCH_ARM, "arm", "ARM", },
{ IH_ARCH_I386, "x86", "Intel x86", },
{ IH_ARCH_IA64, "ia64", "IA64", },
{ IH_ARCH_M68K, "m68k", "M68K", },
{ IH_ARCH_MICROBLAZE, "microblaze", "MicroBlaze", },
{ IH_ARCH_MIPS, "mips", "MIPS", },
{ IH_ARCH_MIPS64, "mips64", "MIPS 64 Bit", },
{ IH_ARCH_NIOS, "nios", "NIOS", },
{ IH_ARCH_NIOS2, "nios2", "NIOS II", },
{ IH_ARCH_PPC, "ppc", "PowerPC", },
{ IH_ARCH_S390, "s390", "IBM S390", },
{ IH_ARCH_SH, "sh", "SuperH", },
{ IH_ARCH_SPARC, "sparc", "SPARC", },
{ IH_ARCH_SPARC64, "sparc64", "SPARC 64 Bit", },
{ IH_ARCH_BLACKFIN, "blackfin", "Blackfin", },
{ IH_ARCH_AVR32, "avr32", "AVR32", },
{ -1, "", "", },
};
static table_entry_t uimage_os[] = {
{ IH_OS_INVALID, NULL, "Invalid OS", },
#if defined(CONFIG_ARTOS) || defined(USE_HOSTCC)
{ IH_OS_ARTOS, "artos", "ARTOS", },
#endif
{ IH_OS_LINUX, "linux", "Linux", },
#if defined(CONFIG_LYNXKDI) || defined(USE_HOSTCC)
{ IH_OS_LYNXOS, "lynxos", "LynxOS", },
#endif
{ IH_OS_NETBSD, "netbsd", "NetBSD", },
{ IH_OS_RTEMS, "rtems", "RTEMS", },
{ IH_OS_U_BOOT, "u-boot", "U-Boot", },
#if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
{ IH_OS_QNX, "qnx", "QNX", },
{ IH_OS_VXWORKS, "vxworks", "VxWorks", },
#endif
#ifdef USE_HOSTCC
{ IH_OS_4_4BSD, "4_4bsd", "4_4BSD", },
{ IH_OS_DELL, "dell", "Dell", },
{ IH_OS_ESIX, "esix", "Esix", },
{ IH_OS_FREEBSD, "freebsd", "FreeBSD", },
{ IH_OS_IRIX, "irix", "Irix", },
{ IH_OS_NCR, "ncr", "NCR", },
{ IH_OS_OPENBSD, "openbsd", "OpenBSD", },
{ IH_OS_PSOS, "psos", "pSOS", },
{ IH_OS_SCO, "sco", "SCO", },
{ IH_OS_SOLARIS, "solaris", "Solaris", },
{ IH_OS_SVR4, "svr4", "SVR4", },
#endif
{ -1, "", "", },
};
static table_entry_t uimage_type[] = {
{ IH_TYPE_INVALID, NULL, "Invalid Image", },
{ IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image", },
{ IH_TYPE_FIRMWARE, "firmware", "Firmware", },
{ IH_TYPE_KERNEL, "kernel", "Kernel Image", },
{ IH_TYPE_MULTI, "multi", "Multi-File Image", },
{ IH_TYPE_RAMDISK, "ramdisk", "RAMDisk Image", },
{ IH_TYPE_SCRIPT, "script", "Script", },
{ IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
{ IH_TYPE_FLATDT, "flat_dt", "Flat Device Tree", },
{ -1, "", "", },
};
static table_entry_t uimage_comp[] = {
{ IH_COMP_NONE, "none", "uncompressed", },
{ IH_COMP_BZIP2, "bzip2", "bzip2 compressed", },
{ IH_COMP_GZIP, "gzip", "gzip compressed", },
{ -1, "", "", },
};
unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
static void genimg_print_size (uint32_t size);
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
static void genimg_print_time (time_t timestamp);
#endif
/*****************************************************************************/
/* Legacy format routines */
/*****************************************************************************/
int image_check_hcrc (image_header_t *hdr)
{
ulong hcrc;
ulong len = image_get_header_size ();
image_header_t header;
/* Copy header so we can blank CRC field for re-calculation */
memmove (&header, (char *)hdr, image_get_header_size ());
image_set_hcrc (&header, 0);
hcrc = crc32 (0, (unsigned char *)&header, len);
return (hcrc == image_get_hcrc (hdr));
}
int image_check_dcrc (image_header_t *hdr)
{
ulong data = image_get_data (hdr);
ulong len = image_get_data_size (hdr);
ulong dcrc = crc32 (0, (unsigned char *)data, len);
return (dcrc == image_get_dcrc (hdr));
}
#ifndef USE_HOSTCC
int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
{
ulong dcrc = 0;
ulong len = image_get_data_size (hdr);
ulong data = image_get_data (hdr);
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
ulong cdata = data;
ulong edata = cdata + len;
while (cdata < edata) {
ulong chunk = edata - cdata;
if (chunk > chunksz)
chunk = chunksz;
dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk);
cdata += chunk;
WATCHDOG_RESET ();
}
#else
dcrc = crc32 (0, (unsigned char *)data, len);
#endif
return (dcrc == image_get_dcrc (hdr));
}
#endif /* !USE_HOSTCC */
/**
* image_multi_count - get component (sub-image) count
* @hdr: pointer to the header of the multi component image
*
* image_multi_count() returns number of components in a multi
* component image.
*
* Note: no checking of the image type is done, caller must pass
* a valid multi component image.
*
* returns:
* number of components
*/
ulong image_multi_count (image_header_t *hdr)
{
ulong i, count = 0;
uint32_t *size;
/* get start of the image payload, which in case of multi
* component images that points to a table of component sizes */
size = (uint32_t *)image_get_data (hdr);
/* count non empty slots */
for (i = 0; size[i]; ++i)
count++;
return count;
}
/**
* image_multi_getimg - get component data address and size
* @hdr: pointer to the header of the multi component image
* @idx: index of the requested component
* @data: pointer to a ulong variable, will hold component data address
* @len: pointer to a ulong variable, will hold component size
*
* image_multi_getimg() returns size and data address for the requested
* component in a multi component image.
*
* Note: no checking of the image type is done, caller must pass
* a valid multi component image.
*
* returns:
* data address and size of the component, if idx is valid
* 0 in data and len, if idx is out of range
*/
void image_multi_getimg (image_header_t *hdr, ulong idx,
ulong *data, ulong *len)
{
int i;
uint32_t *size;
ulong offset, tail, count, img_data;
/* get number of component */
count = image_multi_count (hdr);
/* get start of the image payload, which in case of multi
* component images that points to a table of component sizes */
size = (uint32_t *)image_get_data (hdr);
/* get address of the proper component data start, which means
* skipping sizes table (add 1 for last, null entry) */
img_data = image_get_data (hdr) + (count + 1) * sizeof (uint32_t);
if (idx < count) {
*len = uimage_to_cpu (size[idx]);
offset = 0;
tail = 0;
/* go over all indices preceding requested component idx */
for (i = 0; i < idx; i++) {
/* add up i-th component size */
offset += uimage_to_cpu (size[i]);
/* add up alignment for i-th component */
tail += (4 - uimage_to_cpu (size[i]) % 4);
}
/* calculate idx-th component data address */
*data = img_data + offset + tail;
} else {
*len = 0;
*data = 0;
}
}
static void image_print_type (image_header_t *hdr)
{
const char *os, *arch, *type, *comp;
os = genimg_get_os_name (image_get_os (hdr));
arch = genimg_get_arch_name (image_get_arch (hdr));
type = genimg_get_type_name (image_get_type (hdr));
comp = genimg_get_comp_name (image_get_comp (hdr));
printf ("%s %s %s (%s)\n", arch, os, type, comp);
}
/**
* __image_print_contents - prints out the contents of the legacy format image
* @hdr: pointer to the legacy format image header
* @p: pointer to prefix string
*
* __image_print_contents() formats a multi line legacy image contents description.
* The routine prints out all header fields followed by the size/offset data
* for MULTI/SCRIPT images.
*
* returns:
* no returned results
*/
static void __image_print_contents (image_header_t *hdr, const char *p)
{
printf ("%sImage Name: %.*s\n", p, IH_NMLEN, image_get_name (hdr));
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
printf ("%sCreated: ", p);
genimg_print_time ((time_t)image_get_time (hdr));
#endif
printf ("%sImage Type: ", p);
image_print_type (hdr);
printf ("%sData Size: ", p);
genimg_print_size (image_get_data_size (hdr));
printf ("%sLoad Address: %08x\n", p, image_get_load (hdr));
printf ("%sEntry Point: %08x\n", p, image_get_ep (hdr));
if (image_check_type (hdr, IH_TYPE_MULTI) ||
image_check_type (hdr, IH_TYPE_SCRIPT)) {
int i;
ulong data, len;
ulong count = image_multi_count (hdr);
printf ("%sContents:\n", p);
for (i = 0; i < count; i++) {
image_multi_getimg (hdr, i, &data, &len);
printf ("%s Image %d: ", p, i);
genimg_print_size (len);
if (image_check_type (hdr, IH_TYPE_SCRIPT) && i > 0) {
/*
* the user may need to know offsets
* if planning to do something with
* multiple files
*/
printf ("%s Offset = 0x%08lx\n", p, data);
}
}
}
}
inline void image_print_contents (image_header_t *hdr)
{
__image_print_contents (hdr, " ");
}
inline void image_print_contents_noindent (image_header_t *hdr)
{
__image_print_contents (hdr, "");
}
#ifndef USE_HOSTCC
/**
* image_get_ramdisk - get and verify ramdisk image
* @cmdtp: command table pointer
* @flag: command flag
* @argc: command argument count
* @argv: command argument list
* @rd_addr: ramdisk image start address
* @arch: expected ramdisk architecture
* @verify: checksum verification flag
*
* image_get_ramdisk() returns a pointer to the verified ramdisk image
* header. Routine receives image start address and expected architecture
* flag. Verification done covers data and header integrity and os/type/arch
* fields checking.
*
* If dataflash support is enabled routine checks for dataflash addresses
* and handles required dataflash reads.
*
* returns:
* pointer to a ramdisk image header, if image was found and valid
* otherwise, return NULL
*/
static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
ulong rd_addr, uint8_t arch, int verify)
{
image_header_t *rd_hdr;
show_boot_progress (9);
rd_hdr = (image_header_t *)rd_addr;
if (!image_check_magic (rd_hdr)) {
puts ("Bad Magic Number\n");
show_boot_progress (-10);
return NULL;
}
if (!image_check_hcrc (rd_hdr)) {
puts ("Bad Header Checksum\n");
show_boot_progress (-11);
return NULL;
}
show_boot_progress (10);
image_print_contents (rd_hdr);
if (verify) {
puts(" Verifying Checksum ... ");
if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
puts ("Bad Data CRC\n");
show_boot_progress (-12);
return NULL;
}
puts("OK\n");
}
show_boot_progress (11);
if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
!image_check_arch (rd_hdr, arch) ||
!image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
printf ("No Linux %s Ramdisk Image\n",
genimg_get_arch_name(arch));
show_boot_progress (-13);
return NULL;
}
return rd_hdr;
}
#endif /* !USE_HOSTCC */
/*****************************************************************************/
/* Shared dual-format routines */
/*****************************************************************************/
#ifndef USE_HOSTCC
int getenv_verify (void)
{
char *s = getenv ("verify");
return (s && (*s == 'n')) ? 0 : 1;
}
int getenv_autostart (void)
{
char *s = getenv ("autostart");
return (s && (*s == 'n')) ? 0 : 1;
}
ulong getenv_bootm_low(void)
{
char *s = getenv ("bootm_low");
if (s) {
ulong tmp = simple_strtoul (s, NULL, 16);
return tmp;
}
#ifdef CFG_SDRAM_BASE
return CFG_SDRAM_BASE;
#else
return 0;
#endif
}
ulong getenv_bootm_size(void)
{
char *s = getenv ("bootm_size");
if (s) {
ulong tmp = simple_strtoul (s, NULL, 16);
return tmp;
}
return gd->bd->bi_memsize;
}
void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
{
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
while (len > 0) {
size_t tail = (len > chunksz) ? chunksz : len;
WATCHDOG_RESET ();
memmove (to, from, tail);
to += tail;
from += tail;
len -= tail;
}
#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
memmove (to, from, len);
#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
}
#endif /* !USE_HOSTCC */
static void genimg_print_size (uint32_t size)
{
#ifndef USE_HOSTCC
printf ("%d Bytes = ", size);
print_size (size, "\n");
#else
printf ("%d Bytes = %.2f kB = %.2f MB\n",
size, (double)size / 1.024e3,
(double)size / 1.048576e6);
#endif
}
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
static void genimg_print_time (time_t timestamp)
{
#ifndef USE_HOSTCC
struct rtc_time tm;
to_tm (timestamp, &tm);
printf ("%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);
#else
printf ("%s", ctime(&timestamp));
#endif
}
#endif /* CONFIG_TIMESTAMP || CONFIG_CMD_DATE || USE_HOSTCC */
/**
* get_table_entry_name - translate entry id to long name
* @table: pointer to a translation table for entries of a specific type
* @msg: message to be returned when translation fails
* @id: entry id to be translated
*
* get_table_entry_name() will go over translation table trying to find
* entry that matches given id. If matching entry is found, its long
* name is returned to the caller.
*
* returns:
* long entry name if translation succeeds
* msg otherwise
*/
static char *get_table_entry_name (table_entry_t *table, char *msg, int id)
{
for (; table->id >= 0; ++table) {
if (table->id == id)
return (table->lname);
}
return (msg);
}
const char *genimg_get_os_name (uint8_t os)
{
return (get_table_entry_name (uimage_os, "Unknown OS", os));
}
const char *genimg_get_arch_name (uint8_t arch)
{
return (get_table_entry_name (uimage_arch, "Unknown Architecture", arch));
}
const char *genimg_get_type_name (uint8_t type)
{
return (get_table_entry_name (uimage_type, "Unknown Image", type));
}
const char *genimg_get_comp_name (uint8_t comp)
{
return (get_table_entry_name (uimage_comp, "Unknown Compression", comp));
}
/**
* get_table_entry_id - translate short entry name to id
* @table: pointer to a translation table for entries of a specific type
* @table_name: to be used in case of error
* @name: entry short name to be translated
*
* get_table_entry_id() will go over translation table trying to find
* entry that matches given short name. If matching entry is found,
* its id returned to the caller.
*
* returns:
* entry id if translation succeeds
* -1 otherwise
*/
static int get_table_entry_id (table_entry_t *table,
const char *table_name, const char *name)
{
table_entry_t *t;
#ifdef USE_HOSTCC
int first = 1;
for (t = table; t->id >= 0; ++t) {
if (t->sname && strcasecmp(t->sname, name) == 0)
return (t->id);
}
fprintf (stderr, "\nInvalid %s Type - valid names are", table_name);
for (t = table; t->id >= 0; ++t) {
if (t->sname == NULL)
continue;
fprintf (stderr, "%c %s", (first) ? ':' : ',', t->sname);
first = 0;
}
fprintf (stderr, "\n");
#else
for (t = table; t->id >= 0; ++t) {
if (t->sname && strcmp(t->sname, name) == 0)
return (t->id);
}
debug ("Invalid %s Type: %s\n", table_name, name);
#endif /* USE_HOSTCC */
return (-1);
}
int genimg_get_os_id (const char *name)
{
return (get_table_entry_id (uimage_os, "OS", name));
}
int genimg_get_arch_id (const char *name)
{
return (get_table_entry_id (uimage_arch, "CPU", name));
}
int genimg_get_type_id (const char *name)
{
return (get_table_entry_id (uimage_type, "Image", name));
}
int genimg_get_comp_id (const char *name)
{
return (get_table_entry_id (uimage_comp, "Compression", name));
}
#ifndef USE_HOSTCC
/**
* genimg_get_format - get image format type
* @img_addr: image start address
*
* genimg_get_format() checks whether provided address points to a valid
* legacy or FIT image.
*
* New uImage format and FDT blob are based on a libfdt. FDT blob
* may be passed directly or embedded in a FIT image. In both situations
* genimg_get_format() must be able to dectect libfdt header.
*
* returns:
* image format type or IMAGE_FORMAT_INVALID if no image is present
*/
int genimg_get_format (void *img_addr)
{
ulong format = IMAGE_FORMAT_INVALID;
image_header_t *hdr;
#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
char *fit_hdr;
#endif
hdr = (image_header_t *)img_addr;
if (image_check_magic(hdr))
format = IMAGE_FORMAT_LEGACY;
#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
else {
fit_hdr = (char *)img_addr;
if (fdt_check_header (fit_hdr) == 0)
format = IMAGE_FORMAT_FIT;
}
#endif
return format;
}
/**
* genimg_get_image - get image from special storage (if necessary)
* @img_addr: image start address
*
* genimg_get_image() checks if provided image start adddress is located
* in a dataflash storage. If so, image is moved to a system RAM memory.
*
* returns:
* image start address after possible relocation from special storage
*/
ulong genimg_get_image (ulong img_addr)
{
ulong ram_addr = img_addr;
#ifdef CONFIG_HAS_DATAFLASH
ulong h_size, d_size;
if (addr_dataflash (img_addr)){
/* ger RAM address */
ram_addr = CFG_LOAD_ADDR;
/* get header size */
h_size = image_get_header_size ();
#if defined(CONFIG_FIT)
if (sizeof(struct fdt_header) > h_size)
h_size = sizeof(struct fdt_header);
#endif
/* read in header */
debug (" Reading image header from dataflash address "
"%08lx to RAM address %08lx\n", img_addr, ram_addr);
read_dataflash (img_addr, h_size, (char *)ram_addr);
/* get data size */
switch (genimg_get_format ((void *)ram_addr)) {
case IMAGE_FORMAT_LEGACY:
d_size = image_get_data_size ((image_header_t *)ram_addr);
debug (" Legacy format image found at 0x%08lx, size 0x%08lx\n",
ram_addr, d_size);
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
d_size = fit_get_size ((const void *)ram_addr) - h_size;
debug (" FIT/FDT format image found at 0x%08lx, size 0x%08lx\n",
ram_addr, d_size);
break;
#endif
default:
printf (" No valid image found at 0x%08lx\n", img_addr);
return ram_addr;
}
/* read in image data */
debug (" Reading image remaining data from dataflash address "
"%08lx to RAM address %08lx\n", img_addr + h_size,
ram_addr + h_size);
read_dataflash (img_addr + h_size, d_size,
(char *)(ram_addr + h_size));
}
#endif /* CONFIG_HAS_DATAFLASH */
return ram_addr;
}
/**
* boot_get_ramdisk - main ramdisk handling routine
* @cmdtp: command table pointer
* @flag: command flag
* @argc: command argument count
* @argv: command argument list
* @images: pointer to the bootm images structure
* @arch: expected ramdisk architecture
* @rd_start: pointer to a ulong variable, will hold ramdisk start address
* @rd_end: pointer to a ulong variable, will hold ramdisk end
*
* boot_get_ramdisk() is responsible for finding a valid ramdisk image.
* Curently supported are the following ramdisk sources:
* - multicomponent kernel/ramdisk image,
* - commandline provided address of decicated ramdisk image.
*
* returns:
* rd_start and rd_end are set to ramdisk start/end addresses if
* ramdisk image is found and valid
* rd_start and rd_end are set to 0 if no ramdisk exists
* return 1 if ramdisk image is found but corrupted
*/
int boot_get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
bootm_headers_t *images, uint8_t arch,
ulong *rd_start, ulong *rd_end)
{
ulong rd_addr, rd_load;
ulong rd_data, rd_len;
image_header_t *rd_hdr;
#if defined(CONFIG_FIT)
void *fit_hdr;
const char *fit_uname_config = NULL;
const char *fit_uname_ramdisk = NULL;
ulong default_addr;
#endif
/*
* Look for a '-' which indicates to ignore the
* ramdisk argument
*/
if ((argc >= 3) && (strcmp(argv[2], "-") == 0)) {
debug ("## Skipping init Ramdisk\n");
rd_len = rd_data = 0;
} else if (argc >= 3) {
#if defined(CONFIG_FIT)
/*
* If the init ramdisk comes from the FIT image and the FIT image
* address is omitted in the command line argument, try to use
* os FIT image address or default load address.
*/
if (images->fit_uname_os)
default_addr = (ulong)images->fit_hdr_os;
else
default_addr = load_addr;
if (fit_parse_conf (argv[2], default_addr,
&rd_addr, &fit_uname_config)) {
debug ("* ramdisk: config '%s' from image at 0x%08lx\n",
fit_uname_config, rd_addr);
} else if (fit_parse_subimage (argv[2], default_addr,
&rd_addr, &fit_uname_ramdisk)) {
debug ("* ramdisk: subimage '%s' from image at 0x%08lx\n",
fit_uname_ramdisk, rd_addr);
} else
#endif
{
rd_addr = simple_strtoul(argv[2], NULL, 16);
debug ("* ramdisk: cmdline image address = 0x%08lx\n",
rd_addr);
}
/* copy from dataflash if needed */
printf ("## Loading init Ramdisk Image at %08lx ...\n",
rd_addr);
rd_addr = genimg_get_image (rd_addr);
/*
* Check if there is an initrd image at the
* address provided in the second bootm argument
* check image type, for FIT images get FIT node.
*/
switch (genimg_get_format ((void *)rd_addr)) {
case IMAGE_FORMAT_LEGACY:
debug ("* ramdisk: legacy format image\n");
rd_hdr = image_get_ramdisk (cmdtp, flag, argc, argv,
rd_addr, arch, images->verify);
if (rd_hdr == NULL) {
*rd_start = 0;
*rd_end = 0;
return 1;
}
rd_data = image_get_data (rd_hdr);
rd_len = image_get_data_size (rd_hdr);
rd_load = image_get_load (rd_hdr);
break;
#if defined(CONFIG_FIT)
case IMAGE_FORMAT_FIT:
fit_hdr = (void *)rd_addr;
debug ("* ramdisk: FIT format image\n");
fit_unsupported_reset ("ramdisk");
return 1;
#endif
default:
printf ("Wrong Image Format for %s command\n",
cmdtp->name);
rd_data = rd_len = 0;
}
#if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO)
/*
* We need to copy the ramdisk to SRAM to let Linux boot
*/
if (rd_data) {
memmove ((void *)rd_load, (uchar *)rd_data, rd_len);
rd_data = rd_load;
}
#endif /* CONFIG_B2 || CONFIG_EVB4510 || CONFIG_ARMADILLO */
} else if (images->legacy_hdr_valid &&
image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) {
/*
* Now check if we have a legacy mult-component image,
* get second entry data start address and len.
*/
show_boot_progress (13);
printf ("## Loading init Ramdisk from multi component "
"Image at %08lx ...\n",
(ulong)images->legacy_hdr_os);
image_multi_getimg (images->legacy_hdr_os, 1, &rd_data, &rd_len);
} else {
/*
* no initrd image
*/
show_boot_progress (14);
rd_len = rd_data = 0;
}
if (!rd_data) {
debug ("## No init Ramdisk\n");
*rd_start = 0;
*rd_end = 0;
} else {
*rd_start = rd_data;
*rd_end = rd_data + rd_len;
}
debug (" ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
*rd_start, *rd_end);
return 0;
}
#if defined(CONFIG_PPC) || defined(CONFIG_M68K)
/**
* boot_ramdisk_high - relocate init ramdisk
* @lmb: pointer to lmb handle, will be used for memory mgmt
* @rd_data: ramdisk data start address
* @rd_len: ramdisk data length
* @initrd_start: pointer to a ulong variable, will hold final init ramdisk
* start address (after possible relocation)
* @initrd_end: pointer to a ulong variable, will hold final init ramdisk
* end address (after possible relocation)
*
* boot_ramdisk_high() takes a relocation hint from "initrd_high" environement
* variable and if requested ramdisk data is moved to a specified location.
*
* Initrd_start and initrd_end are set to final (after relocation) ramdisk
* start/end addresses if ramdisk image start and len were provided,
* otherwise set initrd_start and initrd_end set to zeros.
*
* returns:
* 0 - success
* -1 - failure
*/
int boot_ramdisk_high (struct lmb *lmb, ulong rd_data, ulong rd_len,
ulong *initrd_start, ulong *initrd_end)
{
char *s;
ulong initrd_high;
int initrd_copy_to_ram = 1;
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);
if (initrd_high == ~0)
initrd_copy_to_ram = 0;
} else {
/* not set, no restrictions to load high */
initrd_high = ~0;
}
debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
initrd_high, initrd_copy_to_ram);
if (rd_data) {
if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
debug (" in-place initrd\n");
*initrd_start = rd_data;
*initrd_end = rd_data + rd_len;
lmb_reserve(lmb, rd_data, rd_len);
} else {
if (initrd_high)
*initrd_start = lmb_alloc_base (lmb, rd_len, 0x1000, initrd_high);
else
*initrd_start = lmb_alloc (lmb, rd_len, 0x1000);
if (*initrd_start == 0) {
puts ("ramdisk - allocation error\n");
goto error;
}
show_boot_progress (12);
*initrd_end = *initrd_start + rd_len;
printf (" Loading Ramdisk to %08lx, end %08lx ... ",
*initrd_start, *initrd_end);
memmove_wd ((void *)*initrd_start,
(void *)rd_data, rd_len, CHUNKSZ);
puts ("OK\n");
}
} else {
*initrd_start = 0;
*initrd_end = 0;
}
debug (" ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
*initrd_start, *initrd_end);
return 0;
error:
return -1;
}
/**
* boot_get_cmdline - allocate and initialize kernel cmdline
* @lmb: pointer to lmb handle, will be used for memory mgmt
* @cmd_start: pointer to a ulong variable, will hold cmdline start
* @cmd_end: pointer to a ulong variable, will hold cmdline end
* @bootmap_base: ulong variable, holds offset in physical memory to
* base of bootmap
*
* boot_get_cmdline() allocates space for kernel command line below
* BOOTMAPSZ + bootmap_base address. If "bootargs" U-boot environemnt
* variable is present its contents is copied to allocated kernel
* command line.
*
* returns:
* 0 - success
* -1 - failure
*/
int boot_get_cmdline (struct lmb *lmb, ulong *cmd_start, ulong *cmd_end,
ulong bootmap_base)
{
char *cmdline;
char *s;
cmdline = (char *)lmb_alloc_base(lmb, CFG_BARGSIZE, 0xf,
CFG_BOOTMAPSZ + bootmap_base);
if (cmdline == NULL)
return -1;
if ((s = getenv("bootargs")) == NULL)
s = "";
strcpy(cmdline, s);
*cmd_start = (ulong) & cmdline[0];
*cmd_end = *cmd_start + strlen(cmdline);
debug ("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);
return 0;
}
/**
* boot_get_kbd - allocate and initialize kernel copy of board info
* @lmb: pointer to lmb handle, will be used for memory mgmt
* @kbd: double pointer to board info data
* @bootmap_base: ulong variable, holds offset in physical memory to
* base of bootmap
*
* boot_get_kbd() allocates space for kernel copy of board info data below
* BOOTMAPSZ + bootmap_base address and kernel board info is initialized with
* the current u-boot board info data.
*
* returns:
* 0 - success
* -1 - failure
*/
int boot_get_kbd (struct lmb *lmb, bd_t **kbd, ulong bootmap_base)
{
*kbd = (bd_t *)lmb_alloc_base(lmb, sizeof(bd_t), 0xf,
CFG_BOOTMAPSZ + bootmap_base);
if (*kbd == NULL)
return -1;
**kbd = *(gd->bd);
debug ("## kernel board info at 0x%08lx\n", (ulong)*kbd);
#if defined(DEBUG) && defined(CONFIG_CMD_BDI)
do_bdinfo(NULL, 0, 0, NULL);
#endif
return 0;
}
#endif /* CONFIG_PPC || CONFIG_M68K */
#endif /* !USE_HOSTCC */
#if defined(CONFIG_FIT)
/*****************************************************************************/
/* New uImage format routines */
/*****************************************************************************/
#ifndef USE_HOSTCC
static int fit_parse_spec (const char *spec, char sepc, ulong addr_curr,
ulong *addr, const char **name)
{
const char *sep;
*addr = addr_curr;
*name = NULL;
sep = strchr (spec, sepc);
if (sep) {
if (sep - spec > 0)
*addr = simple_strtoul (spec, NULL, 16);
*name = sep + 1;
return 1;
}
return 0;
}
/**
* fit_parse_conf - parse FIT configuration spec
* @spec: input string, containing configuration spec
* @add_curr: current image address (to be used as a possible default)
* @addr: pointer to a ulong variable, will hold FIT image address of a given
* configuration
* @conf_name double pointer to a char, will hold pointer to a configuration
* unit name
*
* fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>,
* where <addr> is a FIT image address that contains configuration
* with a <conf> unit name.
*
* Address part is optional, and if omitted default add_curr will
* be used instead.
*
* returns:
* 1 if spec is a valid configuration string,
* addr and conf_name are set accordingly
* 0 otherwise
*/
inline int fit_parse_conf (const char *spec, ulong addr_curr,
ulong *addr, const char **conf_name)
{
return fit_parse_spec (spec, '#', addr_curr, addr, conf_name);
}
/**
* fit_parse_subimage - parse FIT subimage spec
* @spec: input string, containing subimage spec
* @add_curr: current image address (to be used as a possible default)
* @addr: pointer to a ulong variable, will hold FIT image address of a given
* subimage
* @image_name: double pointer to a char, will hold pointer to a subimage name
*
* fit_parse_subimage() expects subimage spec in the for of
* [<addr>]:<subimage>, where <addr> is a FIT image address that contains
* subimage with a <subimg> unit name.
*
* Address part is optional, and if omitted default add_curr will
* be used instead.
*
* returns:
* 1 if spec is a valid subimage string,
* addr and image_name are set accordingly
* 0 otherwise
*/
inline int fit_parse_subimage (const char *spec, ulong addr_curr,
ulong *addr, const char **image_name)
{
return fit_parse_spec (spec, ':', addr_curr, addr, image_name);
}
#endif /* !USE_HOSTCC */
static void fit_get_debug (const void *fit, int noffset,
char *prop_name, int err)
{
debug ("Can't get '%s' property from FIT 0x%08lx, "
"node: offset %d, name %s (%s)\n",
prop_name, (ulong)fit, noffset,
fit_get_name (fit, noffset, NULL),
fdt_strerror (err));
}
/**
* __fit_print_contents - prints out the contents of the FIT format image
* @fit: pointer to the FIT format image header
* @p: pointer to prefix string
*
* __fit_print_contents() formats a multi line FIT image contents description.
* The routine prints out FIT image properties (root node level) follwed by
* the details of each component image.
*
* returns:
* no returned results
*/
static void __fit_print_contents (const void *fit, const char *p)
{
char *desc;
char *uname;
int images_noffset;
int confs_noffset;
int noffset;
int ndepth;
int count = 0;
int ret;
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
time_t timestamp;
#endif
/* Root node properties */
ret = fit_get_desc (fit, 0, &desc);
printf ("%sFIT description: ", p);
if (ret)
printf ("unavailable\n");
else
printf ("%s\n", desc);
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
ret = fit_get_timestamp (fit, 0, &timestamp);
printf ("%sCreated: ", p);
if (ret)
printf ("unavailable\n");
else
genimg_print_time (timestamp);
#endif
/* Find images parent node offset */
images_noffset = fdt_path_offset (fit, FIT_IMAGES_PATH);
if (images_noffset < 0) {
printf ("Can't find images parent node '%s' (%s)\n",
FIT_IMAGES_PATH, fdt_strerror (images_noffset));
return;
}
/* Process its subnodes, print out component images details */
for (ndepth = 0, count = 0, noffset = fdt_next_node (fit, images_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node (fit, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the images parent node,
* i.e. component image node.
*/
printf ("%s Image %u (%s)\n", p, count++,
fit_get_name(fit, noffset, NULL));
fit_image_print (fit, noffset, p);
}
}
/* Find configurations parent node offset */
confs_noffset = fdt_path_offset (fit, FIT_CONFS_PATH);
if (confs_noffset < 0) {
debug ("Can't get configurations parent node '%s' (%s)\n",
FIT_CONFS_PATH, fdt_strerror (confs_noffset));
return;
}
/* get default configuration unit name from default property */
uname = (char *)fdt_getprop (fit, noffset, FIT_DEFAULT_PROP, NULL);
if (uname)
printf ("%s Default Configuration: '%s'\n", p, uname);
/* Process its subnodes, print out configurations details */
for (ndepth = 0, count = 0, noffset = fdt_next_node (fit, confs_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node (fit, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the configurations parent node,
* i.e. configuration node.
*/
printf ("%s Configuration %u (%s)\n", p, count++,
fit_get_name(fit, noffset, NULL));
fit_conf_print (fit, noffset, p);
}
}
}
inline void fit_print_contents (const void *fit)
{
__fit_print_contents (fit, " ");
}
inline void fit_print_contents_noindent (const void *fit)
{
__fit_print_contents (fit, "");
}
/**
* fit_image_print - prints out the FIT component image details
* @fit: pointer to the FIT format image header
* @image_noffset: offset of the component image node
* @p: pointer to prefix string
*
* fit_image_print() lists all mandatory properies for the processed component
* image. If present, hash nodes are printed out as well.
*
* returns:
* no returned results
*/
void fit_image_print (const void *fit, int image_noffset, const char *p)
{
char *desc;
uint8_t type, arch, os, comp;
size_t size;
ulong load, entry;
const void *data;
int noffset;
int ndepth;
int ret;
/* Mandatory properties */
ret = fit_get_desc (fit, image_noffset, &desc);
printf ("%s Description: ", p);
if (ret)
printf ("unavailable\n");
else
printf ("%s\n", desc);
fit_image_get_type (fit, image_noffset, &type);
printf ("%s Type: %s\n", p, genimg_get_type_name (type));
fit_image_get_comp (fit, image_noffset, &comp);
printf ("%s Compression: %s\n", p, genimg_get_comp_name (comp));
ret = fit_image_get_data (fit, image_noffset, &data, &size);
#ifndef USE_HOSTCC
printf ("%s Data Start: ", p);
if (ret)
printf ("unavailable\n");
else
printf ("0x%08lx\n", (ulong)data);
#endif
printf ("%s Data Size: ", p);
if (ret)
printf ("unavailable\n");
else
genimg_print_size (size);
/* Remaining, type dependent properties */
if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE) ||
(type == IH_TYPE_RAMDISK) || (type == IH_TYPE_FIRMWARE) ||
(type == IH_TYPE_FLATDT)) {
fit_image_get_arch (fit, image_noffset, &arch);
printf ("%s Architecture: %s\n", p, genimg_get_arch_name (arch));
}
if (type == IH_TYPE_KERNEL) {
fit_image_get_os (fit, image_noffset, &os);
printf ("%s OS: %s\n", p, genimg_get_os_name (os));
}
if ((type == IH_TYPE_KERNEL) || (type == IH_TYPE_STANDALONE)) {
ret = fit_image_get_load (fit, image_noffset, &load);
printf ("%s Load Address: ", p);
if (ret)
printf ("unavailable\n");
else
printf ("0x%08lx\n", load);
fit_image_get_entry (fit, image_noffset, &entry);
printf ("%s Entry Point: ", p);
if (ret)
printf ("unavailable\n");
else
printf ("0x%08lx\n", entry);
}
/* Process all hash subnodes of the component image node */
for (ndepth = 0, noffset = fdt_next_node (fit, image_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node (fit, noffset, &ndepth)) {
if (ndepth == 1) {
/* Direct child node of the component image node */
fit_image_print_hash (fit, noffset, p);
}
}
}
/**
* fit_image_print_hash - prints out the hash node details
* @fit: pointer to the FIT format image header
* @noffset: offset of the hash node
* @p: pointer to prefix string
*
* fit_image_print_hash() lists properies for the processed hash node
*
* returns:
* no returned results
*/
void fit_image_print_hash (const void *fit, int noffset, const char *p)
{
char *algo;
uint8_t *value;
int value_len;
int i, ret;
/*
* Check subnode name, must be equal to "hash".
* Multiple hash nodes require unique unit node
* names, e.g. hash@1, hash@2, etc.
*/
if (strncmp (fit_get_name(fit, noffset, NULL),
FIT_HASH_NODENAME,
strlen(FIT_HASH_NODENAME)) != 0)
return;
debug ("%s Hash node: '%s'\n", p,
fit_get_name (fit, noffset, NULL));
printf ("%s Hash algo: ", p);
if (fit_image_hash_get_algo (fit, noffset, &algo)) {
printf ("invalid/unsupported\n");
return;
}
printf ("%s\n", algo);
ret = fit_image_hash_get_value (fit, noffset, &value,
&value_len);
printf ("%s Hash value: ", p);
if (ret) {
printf ("unavailable\n");
} else {
for (i = 0; i < value_len; i++)
printf ("%02x", value[i]);
printf ("\n");
}
debug ("%s Hash len: %d\n", p, value_len);
}
/**
* fit_get_desc - get node description property
* @fit: pointer to the FIT format image header
* @noffset: node offset
* @desc: double pointer to the char, will hold pointer to the descrption
*
* fit_get_desc() reads description property from a given node, if
* description is found pointer to it is returened in third call argument.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_get_desc (const void *fit, int noffset, char **desc)
{
int len;
*desc = (char *)fdt_getprop (fit, noffset, FIT_DESC_PROP, &len);
if (*desc == NULL) {
fit_get_debug (fit, noffset, FIT_DESC_PROP, len);
return -1;
}
return 0;
}
/**
* fit_get_timestamp - get node timestamp property
* @fit: pointer to the FIT format image header
* @noffset: node offset
* @timestamp: pointer to the time_t, will hold read timestamp
*
* fit_get_timestamp() reads timestamp poperty from given node, if timestamp
* is found and has a correct size its value is retured in third call
* argument.
*
* returns:
* 0, on success
* -1, on property read failure
* -2, on wrong timestamp size
*/
int fit_get_timestamp (const void *fit, int noffset, time_t *timestamp)
{
int len;
const void *data;
data = fdt_getprop (fit, noffset, FIT_TIMESTAMP_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_TIMESTAMP_PROP, len);
return -1;
}
if (len != sizeof (uint32_t)) {
debug ("FIT timestamp with incorrect size of (%u)\n", len);
return -2;
}
*timestamp = uimage_to_cpu (*((uint32_t *)data));
return 0;
}
/**
* fit_image_get_node - get node offset for component image of a given unit name
* @fit: pointer to the FIT format image header
* @image_uname: component image node unit name
*
* fit_image_get_node() finds a component image (withing the '/images'
* node) of a provided unit name. If image is found its node offset is
* returned to the caller.
*
* returns:
* image node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_image_get_node (const void *fit, const char *image_uname)
{
int noffset, images_noffset;
images_noffset = fdt_path_offset (fit, FIT_IMAGES_PATH);
if (images_noffset < 0) {
debug ("Can't find images parent node '%s' (%s)\n",
FIT_IMAGES_PATH, fdt_strerror (images_noffset));
return images_noffset;
}
noffset = fdt_subnode_offset (fit, images_noffset, image_uname);
if (noffset < 0) {
debug ("Can't get node offset for image unit name: '%s' (%s)\n",
image_uname, fdt_strerror (noffset));
}
return noffset;
}
/**
* fit_image_get_os - get os id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @os: pointer to the uint8_t, will hold os numeric id
*
* fit_image_get_os() finds os property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_os (const void *fit, int noffset, uint8_t *os)
{
int len;
const void *data;
/* Get OS name from property data */
data = fdt_getprop (fit, noffset, FIT_OS_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_OS_PROP, len);
*os = -1;
return -1;
}
/* Translate OS name to id */
*os = genimg_get_os_id (data);
return 0;
}
/**
* fit_image_get_arch - get arch id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @arch: pointer to the uint8_t, will hold arch numeric id
*
* fit_image_get_arch() finds arch property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_arch (const void *fit, int noffset, uint8_t *arch)
{
int len;
const void *data;
/* Get architecture name from property data */
data = fdt_getprop (fit, noffset, FIT_ARCH_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_ARCH_PROP, len);
*arch = -1;
return -1;
}
/* Translate architecture name to id */
*arch = genimg_get_arch_id (data);
return 0;
}
/**
* fit_image_get_type - get type id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @type: pointer to the uint8_t, will hold type numeric id
*
* fit_image_get_type() finds type property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_type (const void *fit, int noffset, uint8_t *type)
{
int len;
const void *data;
/* Get image type name from property data */
data = fdt_getprop (fit, noffset, FIT_TYPE_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_TYPE_PROP, len);
*type = -1;
return -1;
}
/* Translate image type name to id */
*type = genimg_get_type_id (data);
return 0;
}
/**
* fit_image_get_comp - get comp id for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @comp: pointer to the uint8_t, will hold comp numeric id
*
* fit_image_get_comp() finds comp property in a given component image node.
* If the property is found, its (string) value is translated to the numeric
* id which is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_comp (const void *fit, int noffset, uint8_t *comp)
{
int len;
const void *data;
/* Get compression name from property data */
data = fdt_getprop (fit, noffset, FIT_COMP_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_COMP_PROP, len);
*comp = -1;
return -1;
}
/* Translate compression name to id */
*comp = genimg_get_comp_id (data);
return 0;
}
/**
* fit_image_get_load - get load address property for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @load: pointer to the uint32_t, will hold load address
*
* fit_image_get_load() finds load address property in a given component image node.
* If the property is found, its value is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_load (const void *fit, int noffset, ulong *load)
{
int len;
const uint32_t *data;
data = fdt_getprop (fit, noffset, FIT_LOAD_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_LOAD_PROP, len);
return -1;
}
*load = uimage_to_cpu (*data);
return 0;
}
/**
* fit_image_get_entry - get entry point address property for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @entry: pointer to the uint32_t, will hold entry point address
*
* fit_image_get_entry() finds entry point address property in a given component image node.
* If the property is found, its value is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_entry (const void *fit, int noffset, ulong *entry)
{
int len;
const uint32_t *data;
data = fdt_getprop (fit, noffset, FIT_ENTRY_PROP, &len);
if (data == NULL) {
fit_get_debug (fit, noffset, FIT_ENTRY_PROP, len);
return -1;
}
*entry = uimage_to_cpu (*data);
return 0;
}
/**
* fit_image_get_data - get data property and its size for a given component image node
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @data: double pointer to void, will hold data property's data address
* @size: pointer to size_t, will hold data property's data size
*
* fit_image_get_data() finds data property in a given component image node.
* If the property is found its data start address and size are returned to
* the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_get_data (const void *fit, int noffset,
const void **data, size_t *size)
{
int len;
*data = fdt_getprop (fit, noffset, FIT_DATA_PROP, &len);
if (*data == NULL) {
fit_get_debug (fit, noffset, FIT_DATA_PROP, len);
*size = 0;
return -1;
}
*size = len;
return 0;
}
/**
* fit_image_hash_get_algo - get hash algorithm name
* @fit: pointer to the FIT format image header
* @noffset: hash node offset
* @algo: double pointer to char, will hold pointer to the algorithm name
*
* fit_image_hash_get_algo() finds hash algorithm property in a given hash node.
* If the property is found its data start address is returned to the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_hash_get_algo (const void *fit, int noffset, char **algo)
{
int len;
*algo = (char *)fdt_getprop (fit, noffset, FIT_ALGO_PROP, &len);
if (*algo == NULL) {
fit_get_debug (fit, noffset, FIT_ALGO_PROP, len);
return -1;
}
return 0;
}
/**
* fit_image_hash_get_value - get hash value and length
* @fit: pointer to the FIT format image header
* @noffset: hash node offset
* @value: double pointer to uint8_t, will hold address of a hash value data
* @value_len: pointer to an int, will hold hash data length
*
* fit_image_hash_get_value() finds hash value property in a given hash node.
* If the property is found its data start address and size are returned to
* the caller.
*
* returns:
* 0, on success
* -1, on failure
*/
int fit_image_hash_get_value (const void *fit, int noffset, uint8_t **value,
int *value_len)
{
int len;
*value = (uint8_t *)fdt_getprop (fit, noffset, FIT_VALUE_PROP, &len);
if (*value == NULL) {
fit_get_debug (fit, noffset, FIT_VALUE_PROP, len);
*value_len = 0;
return -1;
}
*value_len = len;
return 0;
}
/**
* fit_set_timestamp - set node timestamp property
* @fit: pointer to the FIT format image header
* @noffset: node offset
* @timestamp: timestamp value to be set
*
* fit_set_timestamp() attempts to set timestamp property in the requested
* node and returns operation status to the caller.
*
* returns:
* 0, on success
* -1, on property read failure
*/
int fit_set_timestamp (void *fit, int noffset, time_t timestamp)
{
uint32_t t;
int ret;
t = cpu_to_uimage (timestamp);
ret = fdt_setprop (fit, noffset, FIT_TIMESTAMP_PROP, &t,
sizeof (uint32_t));
if (ret) {
printf ("Can't set '%s' property for '%s' node (%s)\n",
FIT_TIMESTAMP_PROP, fit_get_name (fit, noffset, NULL),
fdt_strerror (ret));
return -1;
}
return 0;
}
/**
* calculate_hash - calculate and return hash for provided input data
* @data: pointer to the input data
* @data_len: data length
* @algo: requested hash algorithm
* @value: pointer to the char, will hold hash value data (caller must
* allocate enough free space)
* value_len: length of the calculated hash
*
* calculate_hash() computes input data hash according to the requested algorithm.
* Resulting hash value is placed in caller provided 'value' buffer, length
* of the calculated hash is returned via value_len pointer argument.
*
* returns:
* 0, on success
* -1, when algo is unsupported
*/
static int calculate_hash (const void *data, int data_len, const char *algo,
uint8_t *value, int *value_len)
{
if (strcmp (algo, "crc32") == 0 ) {
*((uint32_t *)value) = crc32 (0, data, data_len);
*((uint32_t *)value) = cpu_to_uimage (*((uint32_t *)value));
*value_len = 4;
} else if (strcmp (algo, "sha1") == 0 ) {
sha1_csum ((unsigned char *) data, data_len,
(unsigned char *) value);
*value_len = 20;
} else if (strcmp (algo, "md5") == 0 ) {
printf ("MD5 not supported\n");
*value_len = 0;
} else {
debug ("Unsupported hash alogrithm\n");
return -1;
}
return 0;
}
#ifdef USE_HOSTCC
/**
* fit_set_hashes - process FIT component image nodes and calculate hashes
* @fit: pointer to the FIT format image header
*
* fit_set_hashes() adds hash values for all component images in the FIT blob.
* Hashes are calculated for all component images which have hash subnodes
* with algorithm property set to one of the supported hash algorithms.
*
* returns
* 0, on success
* libfdt error code, on failure
*/
int fit_set_hashes (void *fit)
{
int images_noffset;
int noffset;
int ndepth;
int ret;
/* Find images parent node offset */
images_noffset = fdt_path_offset (fit, FIT_IMAGES_PATH);
if (images_noffset < 0) {
printf ("Can't find images parent node '%s' (%s)\n",
FIT_IMAGES_PATH, fdt_strerror (images_noffset));
return images_noffset;
}
/* Process its subnodes, print out component images details */
for (ndepth = 0, noffset = fdt_next_node (fit, images_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node (fit, noffset, &ndepth)) {
if (ndepth == 1) {
/*
* Direct child node of the images parent node,
* i.e. component image node.
*/
ret = fit_image_set_hashes (fit, noffset);
if (ret)
return ret;
}
}
return 0;
}
/**
* fit_image_set_hashes - calculate/set hashes for given component image node
* @fit: pointer to the FIT format image header
* @image_noffset: requested component image node
*
* fit_image_set_hashes() adds hash values for an component image node. All
* existing hash subnodes are checked, if algorithm property is set to one of
* the supported hash algorithms, hash value is computed and corresponding
* hash node property is set, for example:
*
* Input component image node structure:
*
* o image@1 (at image_noffset)
* | - data = [binary data]
* o hash@1
* |- algo = "sha1"
*
* Output component image node structure:
*
* o image@1 (at image_noffset)
* | - data = [binary data]
* o hash@1
* |- algo = "sha1"
* |- value = sha1(data)
*
* returns:
* 0 on sucess
* <0 on failure
*/
int fit_image_set_hashes (void *fit, int image_noffset)
{
const void *data;
size_t size;
char *algo;
uint8_t value[FIT_MAX_HASH_LEN];
int value_len;
int noffset;
int ndepth;
/* Get image data and data length */
if (fit_image_get_data (fit, image_noffset, &data, &size)) {
printf ("Can't get image data/size\n");
return -1;
}
/* Process all hash subnodes of the component image node */
for (ndepth = 0, noffset = fdt_next_node (fit, image_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node (fit, noffset, &ndepth)) {
if (ndepth == 1) {
/* Direct child node of the component image node */
/*
* Check subnode name, must be equal to "hash".
* Multiple hash nodes require unique unit node
* names, e.g. hash@1, hash@2, etc.
*/
if (strncmp (fit_get_name(fit, noffset, NULL),
FIT_HASH_NODENAME,
strlen(FIT_HASH_NODENAME)) != 0) {
/* Not a hash subnode, skip it */
continue;
}
if (fit_image_hash_get_algo (fit, noffset, &algo)) {
printf ("Can't get hash algo property for "
"'%s' hash node in '%s' image node\n",
fit_get_name (fit, noffset, NULL),
fit_get_name (fit, image_noffset, NULL));
return -1;
}
if (calculate_hash (data, size, algo, value, &value_len)) {
printf ("Unsupported hash algorithm (%s) for "
"'%s' hash node in '%s' image node\n",
algo, fit_get_name (fit, noffset, NULL),
fit_get_name (fit, image_noffset, NULL));
return -1;
}
if (fit_image_hash_set_value (fit, noffset, value,
value_len)) {
printf ("Can't set hash value for "
"'%s' hash node in '%s' image node\n",
fit_get_name (fit, noffset, NULL),
fit_get_name (fit, image_noffset, NULL));
return -1;
}
}
}
return 0;
}
/**
* fit_image_hash_set_value - set hash value in requested has node
* @fit: pointer to the FIT format image header
* @noffset: hash node offset
* @value: hash value to be set
* @value_len: hash value length
*
* fit_image_hash_set_value() attempts to set hash value in a node at offset
* given and returns operation status to the caller.
*
* returns
* 0, on success
* -1, on failure
*/
int fit_image_hash_set_value (void *fit, int noffset, uint8_t *value,
int value_len)
{
int ret;
ret = fdt_setprop (fit, noffset, FIT_VALUE_PROP, value, value_len);
if (ret) {
printf ("Can't set hash '%s' property for '%s' node (%s)\n",
FIT_VALUE_PROP, fit_get_name (fit, noffset, NULL),
fdt_strerror (ret));
return -1;
}
return 0;
}
#endif /* USE_HOSTCC */
/**
* fit_image_check_hashes - verify data intergity
* @fit: pointer to the FIT format image header
* @image_noffset: component image node offset
*
* fit_image_check_hashes() goes over component image hash nodes,
* re-calculates each data hash and compares with the value stored in hash
* node.
*
* returns:
* 1, if all hashes are valid
* 0, otherwise (or on error)
*/
int fit_image_check_hashes (const void *fit, int image_noffset)
{
const void *data;
size_t size;
char *algo;
uint8_t *fit_value;
int fit_value_len;
uint8_t value[FIT_MAX_HASH_LEN];
int value_len;
int noffset;
int ndepth;
char *err_msg = "";
/* Get image data and data length */
if (fit_image_get_data (fit, image_noffset, &data, &size)) {
printf ("Can't get image data/size\n");
return 0;
}
/* Process all hash subnodes of the component image node */
for (ndepth = 0, noffset = fdt_next_node (fit, image_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node (fit, noffset, &ndepth)) {
if (ndepth == 1) {
/* Direct child node of the component image node */
/*
* Check subnode name, must be equal to "hash".
* Multiple hash nodes require unique unit node
* names, e.g. hash@1, hash@2, etc.
*/
if (strncmp (fit_get_name(fit, noffset, NULL),
FIT_HASH_NODENAME,
strlen(FIT_HASH_NODENAME)) != 0)
continue;
if (fit_image_hash_get_algo (fit, noffset, &algo)) {
err_msg = "Can't get hash algo property";
goto error;
}
printf ("%s", algo);
if (fit_image_hash_get_value (fit, noffset, &fit_value,
&fit_value_len)) {
err_msg = "Can't get hash value property";
goto error;
}
if (calculate_hash (data, size, algo, value, &value_len)) {
err_msg = "Unsupported hash algorithm";
goto error;
}
if (value_len != fit_value_len) {
err_msg = "Bad hash value len";
goto error;
} else if (memcmp (value, fit_value, value_len) != 0) {
err_msg = "Bad hash value";
goto error;
}
printf ("+ ");
}
}
return 1;
error:
printf ("%s for '%s' hash node in '%s' image node\n",
err_msg, fit_get_name (fit, noffset, NULL),
fit_get_name (fit, image_noffset, NULL));
return 0;
}
/**
* fit_image_check_os - check whether image node is of a given os type
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @os: requested image os
*
* fit_image_check_os() reads image os property and compares its numeric
* id with the requested os. Comparison result is returned to the caller.
*
* returns:
* 1 if image is of given os type
* 0 otherwise (or on error)
*/
int fit_image_check_os (const void *fit, int noffset, uint8_t os)
{
uint8_t image_os;
if (fit_image_get_os (fit, noffset, &image_os))
return 0;
return (os == image_os);
}
/**
* fit_image_check_arch - check whether image node is of a given arch
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @arch: requested imagearch
*
* fit_image_check_arch() reads image arch property and compares its numeric
* id with the requested arch. Comparison result is returned to the caller.
*
* returns:
* 1 if image is of given arch
* 0 otherwise (or on error)
*/
int fit_image_check_arch (const void *fit, int noffset, uint8_t arch)
{
uint8_t image_arch;
if (fit_image_get_arch (fit, noffset, &image_arch))
return 0;
return (arch == image_arch);
}
/**
* fit_image_check_type - check whether image node is of a given type
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @type: requested image type
*
* fit_image_check_type() reads image type property and compares its numeric
* id with the requested type. Comparison result is returned to the caller.
*
* returns:
* 1 if image is of given type
* 0 otherwise (or on error)
*/
int fit_image_check_type (const void *fit, int noffset, uint8_t type)
{
uint8_t image_type;
if (fit_image_get_type (fit, noffset, &image_type))
return 0;
return (type == image_type);
}
/**
* fit_image_check_comp - check whether image node uses given compression
* @fit: pointer to the FIT format image header
* @noffset: component image node offset
* @comp: requested image compression type
*
* fit_image_check_comp() reads image compression property and compares its
* numeric id with the requested compression type. Comparison result is
* returned to the caller.
*
* returns:
* 1 if image uses requested compression
* 0 otherwise (or on error)
*/
int fit_image_check_comp (const void *fit, int noffset, uint8_t comp)
{
uint8_t image_comp;
if (fit_image_get_comp (fit, noffset, &image_comp))
return 0;
return (comp == image_comp);
}
/**
* fit_check_format - sanity check FIT image format
* @fit: pointer to the FIT format image header
*
* fit_check_format() runs a basic sanity FIT image verification.
* Routine checks for mandatory properties, nodes, etc.
*
* returns:
* 1, on success
* 0, on failure
*/
int fit_check_format (const void *fit)
{
/* mandatory / node 'description' property */
if (fdt_getprop (fit, 0, FIT_DESC_PROP, NULL) == NULL) {
debug ("Wrong FIT format: no description\n");
return 0;
}
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
/* mandatory / node 'timestamp' property */
if (fdt_getprop (fit, 0, FIT_TIMESTAMP_PROP, NULL) == NULL) {
debug ("Wrong FIT format: no description\n");
return 0;
}
#endif
/* mandatory subimages parent '/images' node */
if (fdt_path_offset (fit, FIT_IMAGES_PATH) < 0) {
debug ("Wrong FIT format: no images parent node\n");
return 0;
}
return 1;
}
/**
* fit_conf_get_node - get node offset for configuration of a given unit name
* @fit: pointer to the FIT format image header
* @conf_uname: configuration node unit name
*
* fit_conf_get_node() finds a configuration (withing the '/configurations'
* parant node) of a provided unit name. If configuration is found its node offset
* is returned to the caller.
*
* When NULL is provided in second argument fit_conf_get_node() will search
* for a default configuration node instead. Default configuration node unit name
* is retrived from FIT_DEFAULT_PROP property of the '/configurations' node.
*
* returns:
* configuration node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_conf_get_node (const void *fit, const char *conf_uname)
{
int noffset, confs_noffset;
int len;
confs_noffset = fdt_path_offset (fit, FIT_CONFS_PATH);
if (confs_noffset < 0) {
debug ("Can't find configurations parent node '%s' (%s)\n",
FIT_CONFS_PATH, fdt_strerror (confs_noffset));
return confs_noffset;
}
if (conf_uname == NULL) {
/* get configuration unit name from the default property */
debug ("No configuration specified, trying default...\n");
conf_uname = (char *)fdt_getprop (fit, confs_noffset, FIT_DEFAULT_PROP, &len);
if (conf_uname == NULL) {
fit_get_debug (fit, confs_noffset, FIT_DEFAULT_PROP, len);
return len;
}
debug ("Found default configuration: '%s'\n", conf_uname);
}
noffset = fdt_subnode_offset (fit, confs_noffset, conf_uname);
if (noffset < 0) {
debug ("Can't get node offset for configuration unit name: '%s' (%s)\n",
conf_uname, fdt_strerror (noffset));
}
return noffset;
}
static int __fit_conf_get_prop_node (const void *fit, int noffset,
const char *prop_name)
{
char *uname;
int len;
/* get kernel image unit name from configuration kernel property */
uname = (char *)fdt_getprop (fit, noffset, prop_name, &len);
if (uname == NULL)
return len;
return fit_image_get_node (fit, uname);
}
/**
* fit_conf_get_kernel_node - get kernel image node offset that corresponds to
* a given configuration
* @fit: pointer to the FIT format image header
* @noffset: configuration node offset
*
* fit_conf_get_kernel_node() retrives kernel image node unit name from
* configuration FIT_KERNEL_PROP property and translates it to the node
* offset.
*
* returns:
* image node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_conf_get_kernel_node (const void *fit, int noffset)
{
return __fit_conf_get_prop_node (fit, noffset, FIT_KERNEL_PROP);
}
/**
* fit_conf_get_ramdisk_node - get ramdisk image node offset that corresponds to
* a given configuration
* @fit: pointer to the FIT format image header
* @noffset: configuration node offset
*
* fit_conf_get_ramdisk_node() retrives ramdisk image node unit name from
* configuration FIT_KERNEL_PROP property and translates it to the node
* offset.
*
* returns:
* image node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_conf_get_ramdisk_node (const void *fit, int noffset)
{
return __fit_conf_get_prop_node (fit, noffset, FIT_RAMDISK_PROP);
}
/**
* fit_conf_get_fdt_node - get fdt image node offset that corresponds to
* a given configuration
* @fit: pointer to the FIT format image header
* @noffset: configuration node offset
*
* fit_conf_get_fdt_node() retrives fdt image node unit name from
* configuration FIT_KERNEL_PROP property and translates it to the node
* offset.
*
* returns:
* image node offset when found (>=0)
* negative number on failure (FDT_ERR_* code)
*/
int fit_conf_get_fdt_node (const void *fit, int noffset)
{
return __fit_conf_get_prop_node (fit, noffset, FIT_FDT_PROP);
}
/**
* fit_conf_print - prints out the FIT configuration details
* @fit: pointer to the FIT format image header
* @conf_noffset: offset of the configuration node
* @p: pointer to prefix string
*
* fit_conf_print() lists all mandatory properies for the processed
* configuration node.
*
* returns:
* no returned results
*/
void fit_conf_print (const void *fit, int noffset, const char *p)
{
char *desc;
char *uname;
int ret;
/* Mandatory properties */
ret = fit_get_desc (fit, noffset, &desc);
printf ("%s Description: ", p);
if (ret)
printf ("unavailable\n");
else
printf ("%s\n", desc);
uname = (char *)fdt_getprop (fit, noffset, FIT_KERNEL_PROP, NULL);
printf ("%s Kernel: ", p);
if (uname == NULL)
printf ("unavailable\n");
else
printf ("%s\n", uname);
/* Optional properties */
uname = (char *)fdt_getprop (fit, noffset, FIT_RAMDISK_PROP, NULL);
if (uname)
printf ("%s Init Ramdisk: %s\n", p, uname);
uname = (char *)fdt_getprop (fit, noffset, FIT_FDT_PROP, NULL);
if (uname)
printf ("%s FDT: %s\n", p, uname);
}
#endif /* CONFIG_FIT */
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