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image.c
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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
*/
#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
#include <rtc.h>
#include <environment.h>
#include <image.h>
#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#include <fdt_support.h>
#endif
#include <u-boot/md5.h>
#include <sha1.h>
#include <asm/errno.h>
#include <asm/io.h>
#ifdef CONFIG_CMD_BDI
extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
#endif
DECLARE_GLOBAL_DATA_PTR;
static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
int verify);
#else
#include "mkimage.h"
#include <u-boot/md5.h>
#include <time.h>
#include <image.h>
#endif /* !USE_HOSTCC*/
#include <u-boot/crc.h>
#ifndef CONFIG_SYS_BARGSIZE
#define CONFIG_SYS_BARGSIZE 512
#endif
static const 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_NIOS2, "nios2", "NIOS II", },
{ IH_ARCH_PPC, "powerpc", "PowerPC", },
{ 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", },
{ IH_ARCH_NDS32, "nds32", "NDS32", },
{ IH_ARCH_OPENRISC, "or1k", "OpenRISC 1000",},
{ IH_ARCH_SANDBOX, "sandbox", "Sandbox", },
{ -1, "", "", },
};
static const table_entry_t uimage_os[] = {
{ IH_OS_INVALID, NULL, "Invalid OS", },
{ 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_OSE, "ose", "Enea OSE", },
{ IH_OS_PLAN9, "plan9", "Plan 9", },
{ 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
#if defined(CONFIG_INTEGRITY) || defined(USE_HOSTCC)
{ IH_OS_INTEGRITY,"integrity", "INTEGRITY", },
#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 const table_entry_t uimage_type[] = {
{ IH_TYPE_AISIMAGE, "aisimage", "Davinci AIS image",},
{ IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image", },
{ IH_TYPE_FIRMWARE, "firmware", "Firmware", },
{ IH_TYPE_FLATDT, "flat_dt", "Flat Device Tree", },
{ IH_TYPE_KERNEL, "kernel", "Kernel Image", },
{ IH_TYPE_KERNEL_NOLOAD, "kernel_noload", "Kernel Image (no loading done)", },
{ IH_TYPE_KWBIMAGE, "kwbimage", "Kirkwood Boot Image",},
{ IH_TYPE_IMXIMAGE, "imximage", "Freescale i.MX Boot Image",},
{ IH_TYPE_INVALID, NULL, "Invalid Image", },
{ IH_TYPE_MULTI, "multi", "Multi-File Image", },
{ IH_TYPE_OMAPIMAGE, "omapimage", "TI OMAP SPL With GP CH",},
{ IH_TYPE_PBLIMAGE, "pblimage", "Freescale PBL Boot Image",},
{ IH_TYPE_RAMDISK, "ramdisk", "RAMDisk Image", },
{ IH_TYPE_SCRIPT, "script", "Script", },
{ IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
{ IH_TYPE_UBLIMAGE, "ublimage", "Davinci UBL image",},
{ -1, "", "", },
};
static const table_entry_t uimage_comp[] = {
{ IH_COMP_NONE, "none", "uncompressed", },
{ IH_COMP_BZIP2, "bzip2", "bzip2 compressed", },
{ IH_COMP_GZIP, "gzip", "gzip compressed", },
{ IH_COMP_LZMA, "lzma", "lzma compressed", },
{ IH_COMP_LZO, "lzo", "lzo compressed", },
{ -1, "", "", },
};
/*****************************************************************************/
/* Legacy format routines */
/*****************************************************************************/
int image_check_hcrc(const 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(const image_header_t *hdr)
{
ulong data = image_get_data(hdr);
ulong len = image_get_data_size(hdr);
ulong dcrc = crc32_wd(0, (unsigned char *)data, len, CHUNKSZ_CRC32);
return (dcrc == image_get_dcrc(hdr));
}
/**
* 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(const 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(const image_header_t *hdr, ulong idx,
ulong *data, ulong *len)
{
int i;
uint32_t *size;
ulong offset, 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;
/* go over all indices preceding requested component idx */
for (i = 0; i < idx; i++) {
/* add up i-th component size, rounding up to 4 bytes */
offset += (uimage_to_cpu(size[i]) + 3) & ~3 ;
}
/* calculate idx-th component data address */
*data = img_data + offset;
} else {
*len = 0;
*data = 0;
}
}
static void image_print_type(const 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
* @ptr: 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
*/
void image_print_contents(const void *ptr)
{
const image_header_t *hdr = (const image_header_t *)ptr;
const char *p;
p = IMAGE_INDENT_STRING;
printf("%sImage Name: %.*s\n", p, IH_NMLEN, image_get_name(hdr));
if (IMAGE_ENABLE_TIMESTAMP) {
printf("%sCreated: ", p);
genimg_print_time((time_t)image_get_time(hdr));
}
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);
}
}
}
}
#ifndef USE_HOSTCC
/**
* image_get_ramdisk - get and verify ramdisk image
* @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 const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
int verify)
{
const image_header_t *rd_hdr = (const image_header_t *)rd_addr;
if (!image_check_magic(rd_hdr)) {
puts("Bad Magic Number\n");
bootstage_error(BOOTSTAGE_ID_RD_MAGIC);
return NULL;
}
if (!image_check_hcrc(rd_hdr)) {
puts("Bad Header Checksum\n");
bootstage_error(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
return NULL;
}
bootstage_mark(BOOTSTAGE_ID_RD_MAGIC);
image_print_contents(rd_hdr);
if (verify) {
puts(" Verifying Checksum ... ");
if (!image_check_dcrc(rd_hdr)) {
puts("Bad Data CRC\n");
bootstage_error(BOOTSTAGE_ID_RD_CHECKSUM);
return NULL;
}
puts("OK\n");
}
bootstage_mark(BOOTSTAGE_ID_RD_HDR_CHECKSUM);
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));
bootstage_error(BOOTSTAGE_ID_RAMDISK);
return NULL;
}
return rd_hdr;
}
#endif /* !USE_HOSTCC */
/*****************************************************************************/
/* Shared dual-format routines */
/*****************************************************************************/
#ifndef USE_HOSTCC
ulong load_addr = CONFIG_SYS_LOAD_ADDR; /* Default Load Address */
ulong save_addr; /* Default Save Address */
ulong save_size; /* Default Save Size (in bytes) */
static int on_loadaddr(const char *name, const char *value, enum env_op op,
int flags)
{
switch (op) {
case env_op_create:
case env_op_overwrite:
load_addr = simple_strtoul(value, NULL, 16);
break;
default:
break;
}
return 0;
}
U_BOOT_ENV_CALLBACK(loadaddr, on_loadaddr);
ulong getenv_bootm_low(void)
{
char *s = getenv("bootm_low");
if (s) {
ulong tmp = simple_strtoul(s, NULL, 16);
return tmp;
}
#if defined(CONFIG_SYS_SDRAM_BASE)
return CONFIG_SYS_SDRAM_BASE;
#elif defined(CONFIG_ARM)
return gd->bd->bi_dram[0].start;
#else
return 0;
#endif
}
phys_size_t getenv_bootm_size(void)
{
phys_size_t tmp;
char *s = getenv("bootm_size");
if (s) {
tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
return tmp;
}
s = getenv("bootm_low");
if (s)
tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
else
tmp = 0;
#if defined(CONFIG_ARM)
return gd->bd->bi_dram[0].size - tmp;
#else
return gd->bd->bi_memsize - tmp;
#endif
}
phys_size_t getenv_bootm_mapsize(void)
{
phys_size_t tmp;
char *s = getenv("bootm_mapsize");
if (s) {
tmp = (phys_size_t)simple_strtoull(s, NULL, 16);
return tmp;
}
#if defined(CONFIG_SYS_BOOTMAPSZ)
return CONFIG_SYS_BOOTMAPSZ;
#else
return getenv_bootm_size();
#endif
}
void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
{
if (to == from)
return;
#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 */
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 IMAGE_ENABLE_TIMESTAMP
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(×tamp));
#endif
}
#endif
/**
* 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
*/
char *get_table_entry_name(const table_entry_t *table, char *msg, int id)
{
for (; table->id >= 0; ++table) {
if (table->id == id)
#if defined(USE_HOSTCC) || !defined(CONFIG_NEEDS_MANUAL_RELOC)
return table->lname;
#else
return table->lname + gd->reloc_off;
#endif
}
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
*/
int get_table_entry_id(const table_entry_t *table,
const char *table_name, const char *name)
{
const 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) {
#ifdef CONFIG_NEEDS_MANUAL_RELOC
if (t->sname && strcmp(t->sname + gd->reloc_off, name) == 0)
#else
if (t->sname && strcmp(t->sname, name) == 0)
#endif
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(const void *img_addr)
{
ulong format = IMAGE_FORMAT_INVALID;
const image_header_t *hdr;
#if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
char *fit_hdr;
#endif
hdr = (const 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)) {
void *buf;
/* ger RAM address */
ram_addr = CONFIG_SYS_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);
buf = map_sysmem(ram_addr, 0);
read_dataflash(img_addr, h_size, buf);
/* get data size */
switch (genimg_get_format(buf)) {
case IMAGE_FORMAT_LEGACY:
d_size = image_get_data_size(buf);
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(buf) - 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 *)(buf + h_size));
}
#endif /* CONFIG_HAS_DATAFLASH */
return ram_addr;
}
/**
* fit_has_config - check if there is a valid FIT configuration
* @images: pointer to the bootm command headers structure
*
* fit_has_config() checks if there is a FIT configuration in use
* (if FTI support is present).
*
* returns:
* 0, no FIT support or no configuration found
* 1, configuration found
*/
int genimg_has_config(bootm_headers_t *images)
{
#if defined(CONFIG_FIT)
if (images->fit_uname_cfg)
return 1;
#endif
return 0;
}
/**
* boot_get_ramdisk - main ramdisk handling routine
* @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:
* 0, if ramdisk image was found and valid, or skiped
* rd_start and rd_end are set to ramdisk start/end addresses if
* ramdisk image is found and valid
*
* 1, if ramdisk image is found but corrupted, or invalid
* rd_start and rd_end are set to 0 if no ramdisk exists
*/
int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
uint8_t arch, ulong *rd_start, ulong *rd_end)
{
ulong rd_addr, rd_load;
ulong rd_data, rd_len;
const image_header_t *rd_hdr;
void *buf;
#ifdef CONFIG_SUPPORT_RAW_INITRD
char *end;
#endif
#if defined(CONFIG_FIT)
const char *fit_uname_config = images->fit_uname_cfg;
const char *fit_uname_ramdisk = NULL;
ulong default_addr;
int rd_noffset;
#endif
const char *select = NULL;
*rd_start = 0;
*rd_end = 0;
if (argc >= 2)
select = argv[1];
/*
* Look for a '-' which indicates to ignore the
* ramdisk argument
*/
if (select && strcmp(select, "-") == 0) {
debug("## Skipping init Ramdisk\n");
rd_len = rd_data = 0;
} else if (select || genimg_has_config(images)) {
#if defined(CONFIG_FIT)
if (select) {
/*
* 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(select, 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(select, 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(select, NULL, 16);
debug("* ramdisk: cmdline image address = "
"0x%08lx\n",
rd_addr);
}
#if defined(CONFIG_FIT)
} else {
/* use FIT configuration provided in first bootm
* command argument. If the property is not defined,
* quit silently.
*/
rd_addr = map_to_sysmem(images->fit_hdr_os);
rd_noffset = fit_get_node_from_config(images,
FIT_RAMDISK_PROP, rd_addr);
if (rd_noffset == -ENOLINK)
return 0;
else if (rd_noffset < 0)
return 1;
}
#endif
/* copy from dataflash if needed */
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.
*/
buf = map_sysmem(rd_addr, 0);
switch (genimg_get_format(buf)) {
case IMAGE_FORMAT_LEGACY:
printf("## Loading init Ramdisk from Legacy "
"Image at %08lx ...\n", rd_addr);
bootstage_mark(BOOTSTAGE_ID_CHECK_RAMDISK);
rd_hdr = image_get_ramdisk(rd_addr, arch,
images->verify);
if (rd_hdr == NULL)
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:
rd_noffset = fit_image_load(images, FIT_RAMDISK_PROP,
rd_addr, &fit_uname_ramdisk,
&fit_uname_config, arch,
IH_TYPE_RAMDISK,
BOOTSTAGE_ID_FIT_RD_START,
FIT_LOAD_IGNORED, &rd_data, &rd_len);
if (rd_noffset < 0)
return 1;
images->fit_hdr_rd = map_sysmem(rd_addr, 0);
images->fit_uname_rd = fit_uname_ramdisk;
images->fit_noffset_rd = rd_noffset;
break;
#endif
default:
#ifdef CONFIG_SUPPORT_RAW_INITRD
end = NULL;
if (select)
end = strchr(select, ':');
if (end) {
rd_len = simple_strtoul(++end, NULL, 16);
rd_data = rd_addr;
} else
#endif
{
puts("Wrong Ramdisk Image Format\n");
rd_data = rd_len = rd_load = 0;
return 1;
}
}
} else if (images->legacy_hdr_valid &&
image_check_type(&images->legacy_hdr_os_copy,
IH_TYPE_MULTI)) {
/*
* Now check if we have a legacy mult-component image,
* get second entry data start address and len.
*/
bootstage_mark(BOOTSTAGE_ID_RAMDISK);
printf("## Loading init Ramdisk from multi component "
"Legacy 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
*/
bootstage_mark(BOOTSTAGE_ID_NO_RAMDISK);
rd_len = rd_data = 0;
}
if (!rd_data) {
debug("## No init Ramdisk\n");
} 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;
}
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
/**
* 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;