/*
* Verifies U-Boot image header checksum
*/
static int ih_header_crc(image_header_t *hdr, int tpl_type)
{
u32 crc;
int ret = 0;
printf(" %-*s ", UBOOT_ALIGN_SIZE, "Header CRC...");
if (tpl_type == 0) {
crc = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
if (tinf_crc32((u8 *)hdr, sizeof(image_header_t)) != crc) {
puts("ERROR\n\n");
ret = 1;
} else {
puts("OK!\n");
}
hdr->ih_hcrc = crc;
} else {
puts("skipped\n");
}
return ret;
}
int env_init(void){
int crc1_ok = 0, crc2_ok = 0;
uchar flag1 = flash_addr->flags;
uchar flag2 = flash_addr_new->flags;
ulong addr_default = (ulong)&default_environment[0];
ulong addr1 = (ulong)&(flash_addr->data);
ulong addr2 = (ulong)&(flash_addr_new->data);
crc1_ok = (tinf_crc32(flash_addr->data, ENV_SIZE) == flash_addr->crc);
crc2_ok = (tinf_crc32(flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc);
if(crc1_ok && !crc2_ok){
gd->env_addr = addr1;
gd->env_valid = 1;
} else if(!crc1_ok && crc2_ok){
gd->env_addr = addr2;
gd->env_valid = 1;
} else if(!crc1_ok && !crc2_ok){
gd->env_addr = addr_default;
gd->env_valid = 0;
} else if(flag1 == ACTIVE_FLAG && flag2 == OBSOLETE_FLAG){
gd->env_addr = addr1;
gd->env_valid = 1;
} else if(flag1 == OBSOLETE_FLAG && flag2 == ACTIVE_FLAG){
gd->env_addr = addr2;
gd->env_valid = 1;
} else if(flag1 == flag2){
gd->env_addr = addr1;
gd->env_valid = 2;
} else if(flag1 == 0xFF){
gd->env_addr = addr1;
gd->env_valid = 2;
} else if(flag2 == 0xFF){
gd->env_addr = addr2;
gd->env_valid = 2;
}
return(0);
}
int do_mem_crc32(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong addr, crc, length, vcrc;
int ac, verify;
ulong *ptr;
char **av;
if (argc < 3) {
print_cmd_help(cmdtp);
return 1;
}
av = argv + 1;
ac = argc - 1;
if (strcmp(*av, "-v") == 0) {
verify = 1;
av++;
ac--;
if (ac < 3) {
print_cmd_help(cmdtp);
return 1;
}
} else {
verify = 0;
}
addr = simple_strtoul(*av++, NULL, 16);
length = simple_strtoul(*av++, NULL, 16);
crc = tinf_crc32((const char *)addr, length);
if (!verify) {
printf("CRC32 checksum for data at 0x%08lX ~ 0x%08lX: 0x%08lX\n",
addr, addr + length - 1, crc);
if (ac > 2) {
ptr = (ulong *)simple_strtoul(*av++, NULL, 16);
*ptr = crc;
}
} else {
vcrc = simple_strtoul(*av++, NULL, 16);
if (vcrc != crc) {
printf("## Error: CRC32 checksum for data at 0x%08lX ~ 0x%08lX: 0x%08lX (not 0x%08lX!)\n",
addr, addr + length - 1, crc, vcrc);
return 1;
}
}
return 0;
}
/* CFG_ENV_ADDR is supposed to be on sector boundary */
static ulong end_addr = CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1;
static ulong end_addr_new = CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1;
#define ACTIVE_FLAG 1
#define OBSOLETE_FLAG 0
#endif /* CFG_ENV_ADDR_REDUND */
extern uchar default_environment[];
extern int default_environment_size;
uchar env_get_char_spec(int index){
return(*((uchar *)(gd->env_addr + index)));
}
#ifdef CFG_ENV_ADDR_REDUND
int env_init(void){
int crc1_ok = 0, crc2_ok = 0;
uchar flag1 = flash_addr->flags;
uchar flag2 = flash_addr_new->flags;
ulong addr_default = (ulong)&default_environment[0];
ulong addr1 = (ulong)&(flash_addr->data);
ulong addr2 = (ulong)&(flash_addr_new->data);
crc1_ok = (tinf_crc32(flash_addr->data, ENV_SIZE) == flash_addr->crc);
crc2_ok = (tinf_crc32(flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc);
if(crc1_ok && !crc2_ok){
gd->env_addr = addr1;
gd->env_valid = 1;
} else if(!crc1_ok && crc2_ok){
gd->env_addr = addr2;
gd->env_valid = 1;
} else if(!crc1_ok && !crc2_ok){
gd->env_addr = addr_default;
gd->env_valid = 0;
} else if(flag1 == ACTIVE_FLAG && flag2 == OBSOLETE_FLAG){
gd->env_addr = addr1;
gd->env_valid = 1;
} else if(flag1 == OBSOLETE_FLAG && flag2 == ACTIVE_FLAG){
gd->env_addr = addr2;
gd->env_valid = 1;
} else if(flag1 == flag2){
gd->env_addr = addr1;
gd->env_valid = 2;
} else if(flag1 == 0xFF){
gd->env_addr = addr1;
gd->env_valid = 2;
} else if(flag2 == 0xFF){
gd->env_addr = addr2;
gd->env_valid = 2;
}
return(0);
}
#ifdef CMD_SAVEENV
int saveenv(void){
char *saved_data = NULL;
int rc = 1;
char flag = OBSOLETE_FLAG, new_flag = ACTIVE_FLAG;
#if CFG_ENV_SECT_SIZE > CFG_ENV_SIZE
ulong up_data = 0;
up_data = (end_addr_new + 1 - ((long)flash_addr_new + CFG_ENV_SIZE));
if(up_data){
if((saved_data = malloc(up_data)) == NULL){
printf("## Error: unable to save the rest of sector (%ld)\n", up_data);
goto Done;
}
memcpy(saved_data, (void *)((long)flash_addr_new + CFG_ENV_SIZE), up_data);
}
#endif
if(flash_sect_erase((ulong)flash_addr_new, end_addr_new)){
goto Done;
}
if((rc = flash_write((char *)env_ptr->data, (ulong)&(flash_addr_new->data), sizeof(env_ptr->data))) ||
(rc = flash_write((char *)&(env_ptr->crc), (ulong)&(flash_addr_new->crc), sizeof(env_ptr->crc))) ||
(rc = flash_write(&flag, (ulong)&(flash_addr->flags), sizeof(flash_addr->flags))) ||
(rc = flash_write(&new_flag, (ulong)&(flash_addr_new->flags), sizeof(flash_addr_new->flags)))){
flash_perror(rc);
goto Done;
}
#if CFG_ENV_SECT_SIZE > CFG_ENV_SIZE
if(up_data){ /* restore the rest of sector */
if(flash_write(saved_data, (long)flash_addr_new + CFG_ENV_SIZE, up_data)){
flash_perror(rc);
goto Done;
}
}
#endif
env_t * etmp = flash_addr;
ulong ltmp = end_addr;
flash_addr = flash_addr_new;
flash_addr_new = etmp;
end_addr = end_addr_new;
end_addr_new = ltmp;
rc = 0;
Done:
if(saved_data){
free(saved_data);
}
return(rc);
}
#endif /* CMD_SAVEENV */
#else /* ! CFG_ENV_ADDR_REDUND */
int env_init(void){
if(tinf_crc32(env_ptr->data, ENV_SIZE) == env_ptr->crc){
gd->env_addr = (ulong)&(env_ptr->data);
gd->env_valid = 1;
return(0);
}
gd->env_addr = (ulong)&default_environment[0];
gd->env_valid = 0;
return(0);
}
/************************************************************************
*
* This is the next part if the initialization sequence: we are now
* running from RAM and have a "normal" C environment, i. e. global
* data can be written, BSS has been cleared, the stack size in not
* that critical any more, etc.
*
************************************************************************
*/
void bootstrap_board_init_r(gd_t *id, ulong dest_addr)
{
int i;
ulong addr;
ulong data, len, checksum;
image_header_t header;
image_header_t *hdr = &header;
unsigned int destLen;
int (*fn)(int);
/* Initialize malloc() area */
mem_malloc_init(dest_addr);
addr = (ulong)((char *)(BOOTSTRAP_CFG_MONITOR_BASE + ((ulong)&uboot_end_data_bootstrap - dest_addr)));
memmove(&header, (char *)addr, sizeof(image_header_t));
if (ntohl(hdr->ih_magic) != IH_MAGIC)
return;
data = (ulong)&header;
len = sizeof(image_header_t);
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
if (tinf_crc32((unsigned char *)data, len) != checksum)
return;
data = addr + sizeof(image_header_t);
len = ntohl(hdr->ih_size);
/*
* If we've got less than 4 MB of malloc() space,
* use slower decompression algorithm which requires
* at most 2300 KB of memory.
*/
destLen = 0x0;
#ifdef CONFIG_LZMA
i = lzma_inflate((unsigned char *)data, len, (unsigned char*)ntohl(hdr->ih_load), (int *)&destLen);
if (i != LZMA_RESULT_OK)
return;
#endif
fn = (void *)ntohl(hdr->ih_load);
(*fn)(gd->ram_size);
hang();
}
static int image_info(ulong addr){
ulong data, len, checksum;
image_header_t *hdr = &header;
printf("\nChecking image at 0x%08lX...\n", addr);
/* Copy header so we can blank CRC field for re-calculation */
memmove(&header, (char *)addr, sizeof(image_header_t));
data = (ulong)&header;
len = sizeof(image_header_t);
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
if(tinf_crc32((uchar *)data, len) != checksum){
puts("## Error: 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);
puts(" Verifying checksum... ");
if(tinf_crc32((uchar *)data, len) != ntohl(hdr->ih_dcrc)){
puts("bad data CRC!\n");
return(1);
}
puts("OK!\n\n");
return(0);
}
/*
* Verifies U-Boot image data checksum
*/
static int ih_data_crc(u32 addr, image_header_t *hdr, int tpl_type, int verify)
{
int ret = 0;
printf(" %-*s ", UBOOT_ALIGN_SIZE, "Data CRC...");
if (tpl_type == 0 && verify == 1) {
if (tinf_crc32((u8 *)addr, ntohl(hdr->ih_size))
!= ntohl(hdr->ih_dcrc)) {
puts("ERROR\n\n");
ret = 1;
} else {
puts("OK!\n");
}
} else {
puts("skipped\n");
}
return ret;
}
void env_relocate_spec(void){
#if !defined(ENV_IS_EMBEDDED) || defined(CFG_ENV_ADDR_REDUND)
#ifdef CFG_ENV_ADDR_REDUND
if(gd->env_addr != (ulong)&(flash_addr->data)){
env_t * etmp = flash_addr;
ulong ltmp = end_addr;
flash_addr = flash_addr_new;
flash_addr_new = etmp;
end_addr = end_addr_new;
end_addr_new = ltmp;
}
if(flash_addr_new->flags != OBSOLETE_FLAG && tinf_crc32(flash_addr_new->data, ENV_SIZE) == flash_addr_new->crc){
char flag = OBSOLETE_FLAG;
gd->env_valid = 2;
flash_write(&flag, (ulong)&(flash_addr_new->flags), sizeof(flash_addr_new->flags));
}
if(flash_addr->flags != ACTIVE_FLAG && (flash_addr->flags & ACTIVE_FLAG) == ACTIVE_FLAG){
char flag = ACTIVE_FLAG;
gd->env_valid = 2;
flash_write(&flag, (ulong)&(flash_addr->flags), sizeof(flash_addr->flags));
}
if(gd->env_valid == 2){
puts("** Warning: some problems detected reading environment, recovered successfully\n");
}
#endif /* CFG_ENV_ADDR_REDUND */
memcpy(env_ptr, (void*)flash_addr, CFG_ENV_SIZE);
#endif /* ! ENV_IS_EMBEDDED || CFG_ENV_ADDR_REDUND */
}
int main (int argc, char **argv)
{
#ifdef ENV_IS_EMBEDDED
int crc;
unsigned char *envptr = &environment,
*dataptr = envptr + ENV_HEADER_SIZE;
unsigned int datasize = ENV_SIZE;
crc = tinf_crc32 (dataptr, datasize);
/* Check if verbose mode is activated passing a parameter to the program */
if (argc > 1) {
printf ("CRC32 from offset %08X to %08X of environment = %08X\n",
(unsigned int) (dataptr - envptr),
(unsigned int) (dataptr - envptr) + datasize,
crc);
} else {
printf ("0x%08X\n", crc);
}
#else
printf ("0\n");
#endif
return EXIT_SUCCESS;
}
/* If dest is NULL, return uncompressed length in *destLen. */
int tinf_gzip_uncompress(void *dest, unsigned int *destLen,
const void *source, unsigned int sourceLen)
{
unsigned char *src = (unsigned char *)source;
unsigned char *dst = (unsigned char *)dest;
unsigned char *start;
unsigned int dlen, crc32;
int res;
unsigned char flg;
/* -- check format -- */
/* check id bytes */
if (src[0] != 0x1f || src[1] != 0x8b) return TINF_DATA_ERROR;
/* check method is deflate */
if (src[2] != 8) return TINF_DATA_ERROR;
/* get flag byte */
flg = src[3];
/* check that reserved bits are zero */
if (flg & 0xe0) return TINF_DATA_ERROR;
/* -- find start of compressed data -- */
/* skip base header of 10 bytes */
start = src + 10;
/* skip extra data if present */
if (flg & FEXTRA)
{
unsigned int xlen = start[1];
xlen = 256*xlen + start[0];
start += xlen + 2;
}
/* skip file name if present */
if (flg & FNAME) { while (*start) ++start; ++start; }
/* skip file comment if present */
if (flg & FCOMMENT) { while (*start) ++start; ++start; }
/* check header crc if present */
if (flg & FHCRC)
{
unsigned int hcrc = start[1];
hcrc = 256*hcrc + start[0];
if (hcrc != (tinf_crc32(src, start - src) & 0x0000ffff))
return TINF_DATA_ERROR;
start += 2;
}
/* -- get decompressed length -- */
dlen = src[sourceLen - 1];
dlen = 256*dlen + src[sourceLen - 2];
dlen = 256*dlen + src[sourceLen - 3];
dlen = 256*dlen + src[sourceLen - 4];
if (!dst) {
*destLen = dlen;
return TINF_OK;
}
/* -- get crc32 of decompressed data -- */
crc32 = src[sourceLen - 5];
crc32 = 256*crc32 + src[sourceLen - 6];
crc32 = 256*crc32 + src[sourceLen - 7];
crc32 = 256*crc32 + src[sourceLen - 8];
/* -- decompress data -- */
res = tinf_uncompress(dst, destLen, start, src + sourceLen - start - 8);
if (res != TINF_OK) return TINF_DATA_ERROR;
if (*destLen != dlen) return TINF_DATA_ERROR;
/* -- check CRC32 checksum -- */
if (crc32 != tinf_crc32(dst, dlen)) return TINF_DATA_ERROR;
return TINF_OK;
}
void env_crc_update(void)
{
env_ptr->crc = tinf_crc32(env_ptr->data, ENV_SIZE);
}