int check_ddr_training(void)
{
#ifdef CONFIG_DDR_TRAINING_STARTUP
int ix;
char *s = getenv("unddrtr");
if (s && (*s == 'y' || *s == 'Y'))
return 0;
if (get_ddrtr_result_by_env(&ddrtr_result)) {
/* ddr training function will set value to ddr register. */
if (ddr_training())
return 0;
setenv(DDR_TRAINING_ENV,
dump_ddrtr_result(&ddrtr_result, ' '));
return do_saveenv(NULL, 0, 0, NULL);
}
printf("Set training value to DDR controller\n");
for (ix = 0; ix < ddrtr_result.count; ix++) {
writel(ddrtr_result.reg[ix].val,
ddrtr_result.reg[ix].reg);
}
#endif /* CONFIG_DDR_TRAINING_STARTUP */
return 0;
}
static void save_env(struct fastboot_ptentry *ptn,
char *var, char *val)
{
char start[32], length[32];
char ecc_type[32];
char *lock[5] = { "nand", "lock", NULL, NULL, NULL, };
char *unlock[5] = { "nand", "unlock", NULL, NULL, NULL, };
char *ecc[4] = { "nand", "ecc", NULL, NULL, };
char *saveenv[2] = { "setenv", NULL, };
lock[2] = unlock[2] = start;
lock[3] = unlock[3] = length;
set_env (var, val);
/* Some flashing requires the nand's ecc to be set */
ecc[2] = ecc_type;
if ((ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_HW_ECC) &&
(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_SW_ECC)) {
/* Both can not be true */
printf("Warning can not do hw and sw ecc for partition '%s'\n", ptn->name);
printf("Ignoring these flags\n");
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_HW_ECC) {
sprintf(ecc_type, "hw");
#if 0
do_nand(NULL, 0, 3, ecc);
#endif
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_SW_ECC) {
sprintf(ecc_type, "sw");
#if 0
do_nand(NULL, 0, 3, ecc);
#endif
}
sprintf(start, "0x%x", ptn->start);
sprintf(length, "0x%x", ptn->length);
/* This could be a problem is there is an outstanding lock */
#if 0
do_nand(NULL, 0, 4, unlock);
#endif
do_saveenv(NULL, 0, 1, saveenv);
#if 0
do_nand(NULL, 0, 4, lock);
#endif
}
static void save_block_values(struct fastboot_ptentry *ptn,
unsigned int offset,
unsigned int size)
{
struct fastboot_ptentry *env_ptn;
char var[64], val[32];
char start[32], length[32];
char ecc_type[32];
char *lock[5] = { "nand", "lock", NULL, NULL, NULL, };
char *unlock[5] = { "nand", "unlock", NULL, NULL, NULL, };
char *ecc[4] = { "nand", "ecc", NULL, NULL, };
char *setenv[4] = { "setenv", NULL, NULL, NULL, };
char *saveenv[2] = { "setenv", NULL, };
setenv[1] = var;
setenv[2] = val;
lock[2] = unlock[2] = start;
lock[3] = unlock[3] = length;
printf ("saving it..\n");
if (size == 0)
{
/* The error case, where the variables are being unset */
sprintf (var, "%s_nand_offset", ptn->name);
sprintf (val, "");
do_setenv (NULL, 0, 3, setenv);
sprintf (var, "%s_nand_size", ptn->name);
sprintf (val, "");
do_setenv (NULL, 0, 3, setenv);
}
else
{
/* Normal case */
sprintf (var, "%s_nand_offset", ptn->name);
sprintf (val, "0x%x", offset);
printf ("%s %s %s\n", setenv[0], setenv[1], setenv[2]);
do_setenv (NULL, 0, 3, setenv);
sprintf (var, "%s_nand_size", ptn->name);
sprintf (val, "0x%x", size);
printf ("%s %s %s\n", setenv[0], setenv[1], setenv[2]);
do_setenv (NULL, 0, 3, setenv);
}
/* Warning :
The environment is assumed to be in a partition named 'enviroment'.
It is very possible that your board stores the enviroment
someplace else. */
env_ptn = fastboot_flash_find_ptn("environment");
if (env_ptn)
{
/* Some flashing requires the nand's ecc to be set */
ecc[2] = ecc_type;
if ((env_ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_HW_ECC) &&
(env_ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_SW_ECC))
{
/* Both can not be true */
printf ("Warning can not do hw and sw ecc for partition '%s'\n", ptn->name);
printf ("Ignoring these flags\n");
}
else if (env_ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_HW_ECC)
{
sprintf (ecc_type, "hw");
CFG_FASTBOOT_FLASHCMD (NULL, 0, 3, ecc);
}
else if (env_ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_SW_ECC)
{
sprintf (ecc_type, "sw");
CFG_FASTBOOT_FLASHCMD (NULL, 0, 3, ecc);
}
sprintf (start, "0x%x", env_ptn->start);
sprintf (length, "0x%x", env_ptn->length);
/* This could be a problem is there is an outstanding lock */
CFG_FASTBOOT_FLASHCMD (NULL, 0, 4, unlock);
}
do_saveenv (NULL, 0, 1, saveenv);
if (env_ptn)
{
CFG_FASTBOOT_FLASHCMD (NULL, 0, 4, lock);
}
}
static int rx_handler(const unsigned char *buffer, unsigned int buffer_size)
{
int ret = 1;
/* Use 65 instead of 64
null gets dropped
strcpy's need the extra byte */
char response[65];
/* Cast to make compiler happy with string functions */
const char *cmdbuf = (char *) buffer;
/* Padding is required only if storage medium is NAND */
if (interface.storage_medium == NAND) {
download_bytes = interface.data_to_flash_size;
/* Pad to block length
In most cases, padding the download to be
block aligned is correct. The exception is
when the following flash writes to the oob
area. This happens when the image is a
YAFFS image. Since we do not know what
the download is until it is flashed,
go ahead and pad it, but save the true
size in case if should have
been unpadded */
download_bytes_unpadded = download_bytes;
if (interface.nand_block_size) {
if (download_bytes % interface.nand_block_size) {
unsigned int pad = interface.nand_block_size - (download_bytes % interface.nand_block_size);
unsigned int i;
for (i = 0; i < pad; i++) {
if (download_bytes >= interface.transfer_buffer_size)
break;
interface.transfer_buffer[download_bytes] = 0;
download_bytes++;
}
}
}
/* Provide some feedback */
if (download_bytes && 0 == (download_bytes %
(16 * interface.nand_block_size))) {
/* Some feeback that the
download is happening */
if (download_error)
printf("X");
else
printf(".");
if (0 == (download_bytes %
(80 * 16 *
interface.nand_block_size)))
printf("\n");
}
ret = 0;
} else {
/* A command */
fastboot_confirmed=1;
/* Generic failed response */
sprintf(response, "FAIL");
/* reboot
Reboot the board. */
if(memcmp(cmdbuf, "reboot-bootloader", 17) == 0)
{
sprintf(response,"OKAY");
fastboot_tx_status(response, strlen(response));
/* Clear all reset reasons */
__raw_writel(0xfff, PRM_RSTST);
strcpy(PUBLIC_SAR_RAM_1_FREE, "bootloader");
/* now warm reset the silicon */
__raw_writel(PRM_RSTCTRL_RESET_WARM_BIT,
PRM_RSTCTRL);
return 0;
}
if(memcmp(cmdbuf, "reboot", 6) == 0)
{
sprintf(response,"OKAY");
fastboot_tx_status(response, strlen(response));
do_reset (NULL, 0, 0, NULL);
/* This code is unreachable,
leave it to make the compiler happy */
return 0;
}
/* getvar
Get common fastboot variables
Board has a chance to handle other variables */
if(memcmp(cmdbuf, "getvar:", 7) == 0) {
fastboot_getvar(cmdbuf + 7, response);
return 0;
}
/* %fastboot oem <cmd> */
if (memcmp(cmdbuf, "oem ", 4) == 0) {
ret = 0;
cmdbuf += 4;
if (memcmp(cmdbuf, "shutdown", 8) == 0) {
sprintf(response,"OKAY");
fastboot_tx_status(response, strlen(response));
twl6030_shutdown();
}
if (memcmp(cmdbuf, "idme ", 5) == 0) {
ret = fastboot_idme(cmdbuf + 5);
strcpy(response,"OKAY");
ret = 0;
goto done;
}
/* fastboot oem format */
if(memcmp(cmdbuf, "format", 6) == 0){
ret = fastboot_oem(cmdbuf);
if (ret < 0) {
strcpy(response,"FAIL");
} else {
strcpy(response,"OKAY");
}
goto done;
}
/* fastboot oem recovery */
if(memcmp(cmdbuf, "recovery", 8) == 0){
sprintf(response,"OKAY");
fastboot_tx_status(response, strlen(response));
/* Clear all reset reasons */
__raw_writel(0xfff, PRM_RSTST);
strcpy(PUBLIC_SAR_RAM_1_FREE, "recovery");
/* now warm reset the silicon */
__raw_writel(PRM_RSTCTRL_RESET_WARM_BIT,
PRM_RSTCTRL);
/* Never returns */
while(1);
}
/* fastboot oem unlock */
if(memcmp(cmdbuf, "unlock", 6) == 0){
sprintf(response,"FAIL");
printf("\nfastboot: oem unlock "\
"not implemented yet!!\n");
goto done;
}
/* fastboot oem [xxx] */
printf("\nfastboot: do not understand oem %s\n", cmdbuf);
strcpy(response,"FAIL");
goto done;
} /* end: %fastboot oem <cmd> */
/* erase
Erase a register flash partition
Board has to set up flash partitions */
if(memcmp(cmdbuf, "erase:", 6) == 0){
if (interface.storage_medium == NAND) {
/* storage medium is NAND */
struct fastboot_ptentry *ptn;
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if (ptn == 0)
{
sprintf(response, "FAILpartition does not exist");
}
else
{
char start[32], length[32];
int status = 0, repeat, repeat_max;
printf("erasing '%s'\n", ptn->name);
char *lock[5] = { "nand", "lock", NULL, NULL, NULL, };
char *unlock[5] = { "nand", "unlock", NULL, NULL, NULL, };
char *erase[5] = { "nand", "erase", NULL, NULL, NULL, };
lock[2] = unlock[2] = erase[2] = start;
lock[3] = unlock[3] = erase[3] = length;
repeat_max = 1;
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK)
repeat_max = ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK;
sprintf (length, "0x%x", ptn->length);
for (repeat = 0; repeat < repeat_max; repeat++)
{
sprintf (start, "0x%x", ptn->start + (repeat * ptn->length));
#if 0
do_nand (NULL, 0, 4, unlock);
status = do_nand (NULL, 0, 4, erase);
do_nand (NULL, 0, 4, lock);
#endif
if (status)
break;
}
if (status)
{
sprintf(response, "FAILfailed to erase partition");
}
else
{
printf("partition '%s' erased\n", ptn->name);
sprintf(response, "OKAY");
}
}
} else if (interface.storage_medium == EMMC) {
/* storage medium is EMMC */
struct fastboot_ptentry *ptn;
/* Save the MMC controller number */
#if defined(CONFIG_4430PANDA)
/* panda board does not have eMMC on mmc1 */
mmc_controller_no = 0;
#else
/* blaze has emmc on mmc1 */
mmc_controller_no = 1;
#endif
/* Find the partition and erase it */
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if (ptn == 0) {
sprintf(response,
"FAIL: partition doesn't exist");
} else {
/* Call MMC erase function here */
char start[32], length[32];
char slot_no[32];
char *erase[5] = { "mmc", NULL, "erase",
NULL, NULL, };
char *mmc_init[2] = {"mmcinit", NULL,};
mmc_init[1] = slot_no;
erase[1] = slot_no;
erase[3] = start;
erase[4] = length;
sprintf(slot_no, "%d", mmc_controller_no);
sprintf(length, "0x%x", ptn->length);
sprintf(start, "0x%x", ptn->start);
printf("Initializing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 2, mmc_init))
sprintf(response, "FAIL: Init of MMC card");
else
sprintf(response, "OKAY");
printf("Erasing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 5, erase)) {
printf("Erasing '%s' FAILED!\n", ptn->name);
sprintf(response, "FAIL: Erase partition");
} else {
printf("Erasing '%s' DONE!\n", ptn->name);
sprintf(response, "OKAY");
}
}
}
ret = 0;
}
/* EMMC Erase
Erase a register flash partition on MMC
Board has to set up flash partitions */
if (memcmp(cmdbuf, "mmcerase:", 9) == 0) {
struct fastboot_ptentry *ptn;
/* Save the MMC controller number */
mmc_controller_no = simple_strtoul(cmdbuf + 9,
NULL, 10);
/* Find the partition and erase it */
ptn = fastboot_flash_find_ptn(cmdbuf + 11);
if (ptn == 0) {
sprintf(response,
"FAIL: partition doesn't exist");
} else {
/* Call MMC erase function here */
/* This is not complete */
char start[32], length[32];
char slot_no[32];
char *erase[5] = { "mmc", NULL, "erase",
NULL, NULL, };
char *mmc_init[2] = {"mmcinit", NULL,};
mmc_init[1] = slot_no;
erase[1] = slot_no;
erase[3] = start;
erase[4] = length;
sprintf(slot_no, "%d", mmc_controller_no);
sprintf(length, "0x%x", ptn->length);
sprintf(start, "0x%x", ptn->start);
printf("Initializing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 2, mmc_init)) {
sprintf(response, "FAIL: Init of MMC card");
} else {
sprintf(response, "OKAY");
}
printf("Erasing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 5, erase)) {
sprintf(response, "FAIL: Erase partition");
} else {
sprintf(response, "OKAY");
}
}
}
/* download
download something ..
What happens to it depends on the next command after data */
if(memcmp(cmdbuf, "download:", 9) == 0) {
/* save the size */
download_size = simple_strtoul(cmdbuf + 9, NULL, 16);
/* Reset the bytes count, now it is safe */
download_bytes = 0;
/* Reset error */
download_error = 0;
printf("Starting download of %d bytes\n",
download_size);
if (0 == download_size) {
/* bad user input */
sprintf(response, "FAILdata invalid size");
} else if (download_size >
interface.transfer_buffer_size)
{
/* set download_size to 0
* because this is an error */
download_size = 0;
sprintf(response, "FAILdata too large");
} else {
/* The default case, the transfer fits
completely in the interface buffer */
sprintf(response, "DATA%08x", download_size);
}
ret = download_size;
}
/* boot
boot what was downloaded
**
** +-----------------+
** | boot header | 1 page
** +-----------------+
** | kernel | n pages
** +-----------------+
** | ramdisk | m pages
** +-----------------+
** | second stage | o pages
** +-----------------+
**
Pagesize has default value of
CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE
*/
if(memcmp(cmdbuf, "boot", 4) == 0) {
download_bytes = interface.data_to_flash_size;
if ((download_bytes) &&
(CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE < download_bytes))
{
char start[32];
char *booti_args[4] = { "booti", NULL, "boot", NULL };
/* Skip the mkbootimage header */
//boot_img_hdr *hdr =
// (boot_img_hdr *)
// &interface.transfer_buffer[CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE];
booti_args[1] = start;
sprintf (start, "0x%x", interface.transfer_buffer);
/* Execution should jump to kernel so send the response
now and wait a bit. */
sprintf(response, "OKAY");
fastboot_tx_status(response, strlen(response));
printf ("Booting kernel..\n");
/* For Future use
* if (strlen ((char *) &fb_hdr->cmdline[0]))
* set_env ("bootargs", (char *) &fb_hdr->cmdline[0]);
*/
/* boot the boot.img */
do_booti(NULL, 0, 3, booti_args);
}
sprintf(response, "FAILinvalid boot image");
ret = 0;
}
/* mmcwrite
write what was downloaded on MMC*/
/* Write to MMC whatever was downloaded */
if (memcmp(cmdbuf, "mmcwrite:", 9) == 0) {
download_bytes = interface.data_to_flash_size;
if (download_bytes) {
struct fastboot_ptentry *ptn;
/* Save the MMC controller number */
mmc_controller_no = simple_strtoul(cmdbuf + 9, NULL, 10);
/* Next is the partition name */
ptn = fastboot_flash_find_ptn(cmdbuf + 11);
if (ptn == 0) {
sprintf(response, "FAILpartition does not exist");
} else {
write_to_ptn_emmc(ptn, 0, response);
}
} else {
sprintf(response, "FAILno image downloaded");
}
}
/* flash
Flash what was downloaded */
if(memcmp(cmdbuf, "flash:", 6) == 0) {
download_bytes = interface.data_to_flash_size;
if (interface.storage_medium == NAND) {
/* storage medium is NAND */
if (download_bytes)
{
struct fastboot_ptentry *ptn;
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if (ptn == 0) {
sprintf(response, "FAILpartition does not exist");
} else if ((download_bytes > ptn->length) &&
!(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
sprintf(response, "FAILimage too large for partition");
/* TODO : Improve check for yaffs write */
} else {
/* Check if this is not really a flash write
but rather a saveenv */
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
/* Since the response can only be 64 bytes,
there is no point in having a large error message. */
char err_string[32];
if (saveenv_to_ptn(ptn, &err_string[0])) {
printf("savenv '%s' failed : %s\n", ptn->name, err_string);
sprintf(response, "FAIL%s", err_string);
} else {
printf("partition '%s' saveenv-ed\n", ptn->name);
sprintf(response, "OKAY");
}
} else {
/* Normal case */
if (write_to_ptn(ptn)) {
printf("flashing '%s' failed\n", ptn->name);
sprintf(response, "FAILfailed to flash partition");
} else {
printf("partition '%s' flashed\n", ptn->name);
sprintf(response, "OKAY");
}
}
}
}
else
{
sprintf(response, "FAILno image downloaded");
}
} else if (interface.storage_medium == EMMC) {
/* storage medium is EMMC */
if (download_bytes) {
struct fastboot_ptentry *ptn;
char *argv[2] = {NULL, "-f"};
/* Next is the partition name */
if(memcmp(cmdbuf+6, "all:", 4) == 0){
printf("Factory image testing.\n");
ptn=malloc(sizeof(struct fastboot_ptentry));
sprintf(ptn->name,"%s","all");
ptn->length=download_bytes;
ptn->start=simple_strtoul(cmdbuf + 10, NULL, 16);
printf("length=%x",ptn->length);
printf(" offset=%x\n",ptn->start);
}else{
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
}
if (ptn == 0) {
printf("Partition:'%s' does not exist\n", ptn->name);
sprintf(response, "FAILpartition does not exist");
} else if ((download_bytes > ptn->length) &&
!(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
printf("Image too large for the partition\n");
sprintf(response, "FAILimage too large for partition");
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
/* Check if this is not really a flash write,
* but instead a saveenv
*/
unsigned int i = 0;
/* Env file is expected with a NULL delimeter between
* env variables So replace New line Feeds (0x0a) with
* NULL (0x00)
*/
for (i = 0; i < download_bytes; i++) {
if (interface.transfer_buffer[i] == 0x0a)
interface.transfer_buffer[i] = 0x00;
}
memset(env_ptr->data, 0, ENV_SIZE);
memcpy(env_ptr->data, interface.transfer_buffer, download_bytes);
do_saveenv(NULL, 0, 2, argv);
printf("saveenv to '%s' DONE!\n", ptn->name);
sprintf(response, "OKAY");
} else {
write_to_ptn_emmc(ptn, 0, response);
} /* Normal Case */
} else {
sprintf(response, "FAILno image downloaded");
}
} /* EMMC */
ret = 0;
} /* fastboot flash ... */
/* multi-flash support */
if(memcmp(cmdbuf, "multiflash:", 11) == 0) {
download_bytes=interface.data_to_flash_size;
if (interface.storage_medium == NAND) {
sprintf(response, "FAILmultiflash is not supported for NAND");
} else if (interface.storage_medium == EMMC) {
/* storage medium is EMMC */
if (download_bytes) {
struct fastboot_ptentry *ptn;
/* Next is the partition name */
ptn = fastboot_flash_find_ptn(cmdbuf + 13);
if(ptn != multiflash_ptn) {
// If we start flashing a new partitionn reset
// multi flash statics
multiflash_ptn = ptn;
multiflash_offset = 0;
}
if (ptn == 0) {
printf("Partition:'%s' does not exist\n", ptn->name);
sprintf(response, "FAILpartition does not exist");
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
printf("Multiflash canno be used with partition :'%s'\n",
ptn->name);
sprintf(response, "FAILpartition not supported with multiflash");
} else if((download_bytes+multiflash_offset) > ptn->length) {
printf("Image too large for the partition\n");
sprintf(response, "FAILimage too large for partition");
} else {
printf("\nflash image chunk: offset=@0x%08X size=0x%04X\n",
multiflash_offset, download_bytes);
if(!write_to_ptn_emmc(ptn, multiflash_offset, response)) {
if(memcmp(cmdbuf + 11, "1", 1) == 0) {
// it was the last chunk
multiflash_offset = 0;
multiflash_ptn = NULL;
} else {
multiflash_offset += download_bytes;
}
}
} /* Normal Case */
} else {
sprintf(response, "FAILno image downloaded");
}
} /* EMMC */
ret = 0;
} /* fastboot multiflash ... */
done:
fastboot_tx_status(response, strlen(response));
} /* End of command */
return ret;
}
static int rx_handler (const unsigned char *buffer, unsigned int buffer_size)
{
int ret = 1;
/* Use 65 instead of 64
null gets dropped
strcpy's need the extra byte */
char response[65];
if (download_size)
{
/* Something to download */
if (buffer_size)
{
/* Handle possible overflow */
unsigned int transfer_size =
download_size - download_bytes;
if (buffer_size < transfer_size)
transfer_size = buffer_size;
/* Save the data to the transfer buffer */
memcpy (interface.transfer_buffer + download_bytes,
buffer, transfer_size);
download_bytes += transfer_size;
/* Check if transfer is done */
if (download_bytes >= download_size) {
/* Reset global transfer variable,
Keep download_bytes because it will be
used in the next possible flashing command */
download_size = 0;
if (download_error) {
/* There was an earlier error */
sprintf(response, "ERROR");
} else {
/* Everything has transferred,
send the OK response */
sprintf(response, "OKAY");
}
fastboot_tx_status(response, strlen(response));
printf ("\ndownloading of %d bytes finished\n",
download_bytes);
#if defined(CONFIG_STORAGE_NAND)
/* Pad to block length
In most cases, padding the download to be
block aligned is correct. The exception is
when the following flash writes to the oob
area. This happens when the image is a
YAFFS image. Since we do not know what
the download is until it is flashed,
go ahead and pad it, but save the true
size in case if should have
been unpadded */
download_bytes_unpadded = download_bytes;
if (interface.nand_block_size)
{
if (download_bytes %
interface.nand_block_size)
{
unsigned int pad = interface.nand_block_size - (download_bytes % interface.nand_block_size);
unsigned int i;
for (i = 0; i < pad; i++)
{
if (download_bytes >= interface.transfer_buffer_size)
break;
interface.transfer_buffer[download_bytes] = 0;
download_bytes++;
}
}
}
#endif
}
/* Provide some feedback */
if (download_bytes &&
0 == (download_bytes %
(16 * interface.nand_block_size)))
{
/* Some feeback that the
download is happening */
if (download_error)
printf("X");
else
printf(".");
if (0 == (download_bytes %
(80 * 16 *
interface.nand_block_size)))
printf("\n");
}
}
else
{
/* Ignore empty buffers */
printf ("Warning empty download buffer\n");
printf ("Ignoring\n");
}
ret = 0;
}
else
{
/* A command */
/* Cast to make compiler happy with string functions */
const char *cmdbuf = (char *) buffer;
/* Generic failed response */
sprintf(response, "FAIL");
/* reboot
Reboot the board. */
if(memcmp(cmdbuf, "reboot", 6) == 0)
{
sprintf(response,"OKAY");
fastboot_tx_status(response, strlen(response));
udelay (1000000); /* 1 sec */
do_reset (NULL, 0, 0, NULL);
/* This code is unreachable,
leave it to make the compiler happy */
return 0;
}
/* getvar
Get common fastboot variables
Board has a chance to handle other variables */
if(memcmp(cmdbuf, "getvar:", 7) == 0)
{
strcpy(response,"OKAY");
if(!strcmp(cmdbuf + strlen("version"), "version"))
{
strcpy(response + 4, FASTBOOT_VERSION);
}
else if(!strcmp(cmdbuf + strlen("product"), "product"))
{
if (interface.product_name)
strcpy(response + 4, interface.product_name);
} else if(!strcmp(cmdbuf + strlen("serialno"), "serialno")) {
if (interface.serial_no)
strcpy(response + 4, interface.serial_no);
} else if(!strcmp(cmdbuf + strlen("downloadsize"), "downloadsize")) {
if (interface.transfer_buffer_size)
sprintf(response + 4, "08x", interface.transfer_buffer_size);
}
else
{
fastboot_getvar(cmdbuf + 7, response + 4);
}
ret = 0;
}
/* erase
Erase a register flash partition
Board has to set up flash partitions */
if(memcmp(cmdbuf, "erase:", 6) == 0){
#if defined(CONFIG_STORAGE_NAND)
struct fastboot_ptentry *ptn;
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if(ptn == 0)
{
sprintf(response, "FAILpartition does not exist");
}
else
{
char start[32], length[32];
int status, repeat, repeat_max;
printf("erasing '%s'\n", ptn->name);
char *lock[5] = { "nand", "lock", NULL, NULL, NULL, };
char *unlock[5] = { "nand", "unlock", NULL, NULL, NULL, };
char *erase[5] = { "nand", "erase", NULL, NULL, NULL, };
lock[2] = unlock[2] = erase[2] = start;
lock[3] = unlock[3] = erase[3] = length;
repeat_max = 1;
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK)
repeat_max = ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK;
sprintf (length, "0x%x", ptn->length);
for (repeat = 0; repeat < repeat_max; repeat++)
{
sprintf (start, "0x%x", ptn->start + (repeat * ptn->length));
do_nand (NULL, 0, 4, unlock);
status = do_nand (NULL, 0, 4, erase);
do_nand (NULL, 0, 4, lock);
if (status)
break;
}
if (status)
{
sprintf(response,"FAILfailed to erase partition");
}
else
{
printf("partition '%s' erased\n", ptn->name);
sprintf(response, "OKAY");
}
}
#elif defined(CONFIG_STORAGE_EMMC)
struct fastboot_ptentry *ptn;
/* Save the MMC controller number */
mmc_controller_no = CFG_FASTBOOT_MMC_NO;
/* Find the partition and erase it */
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if (ptn == 0) {
sprintf(response, "FAIL: partition doesn't exist");
} else {
/* Call MMC erase function here */
char start[32], length[32];
char slot_no[32];
char *erase[5] = { "mmc", NULL, "erase", NULL, NULL, };
char *mmc_init[2] = {"mmcinit", NULL,};
mmc_init[1] = slot_no;
erase[1] = slot_no;
erase[3] = start;
erase[4] = length;
sprintf(slot_no, "%d", mmc_controller_no);
sprintf(length, "0x%x", ptn->length);
sprintf(start, "0x%x", ptn->start);
printf("Initializing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 2, mmc_init))
sprintf(response, "FAIL: Init of MMC card");
else
sprintf(response, "OKAY");
printf("Erasing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 5, erase)) {
printf("Erasing '%s' FAILED!\n", ptn->name);
sprintf(response, "FAIL: Erase partition");
} else {
printf("Erasing '%s' DONE!\n", ptn->name);
sprintf(response, "OKAY");
}
}
#endif
ret = 0;
}
/* download
download something ..
What happens to it depends on the next command after data */
if(memcmp(cmdbuf, "download:", 9) == 0) {
/* save the size */
download_size = simple_strtoul (cmdbuf + 9, NULL, 16);
/* Reset the bytes count, now it is safe */
download_bytes = 0;
/* Reset error */
download_error = 0;
printf ("Starting download of %d bytes\n", download_size);
if (0 == download_size)
{
/* bad user input */
sprintf(response, "FAILdata invalid size");
}
else if (download_size > interface.transfer_buffer_size)
{
/* set download_size to 0 because this is an error */
download_size = 0;
sprintf(response, "FAILdata too large");
}
else
{
/* The default case, the transfer fits
completely in the interface buffer */
sprintf(response, "DATA%08x", download_size);
}
ret = 0;
}
/* boot
boot what was downloaded
WARNING WARNING WARNING
This is not what you expect.
The fastboot client does its own packaging of the
kernel. The layout is defined in the android header
file bootimage.h. This layeout is copiedlooks like this,
**
** +-----------------+
** | boot header | 1 page
** +-----------------+
** | kernel | n pages
** +-----------------+
** | ramdisk | m pages
** +-----------------+
** | second stage | o pages
** +-----------------+
**
We only care about the kernel.
So we have to jump past a page.
What is a page size ?
The fastboot client uses 2048
The is the default value of
CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE
*/
if(memcmp(cmdbuf, "boot", 4) == 0) {
if ((download_bytes) &&
(CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE < download_bytes))
{
char start[32];
char *bootm[3] = { "bootm", NULL, NULL, };
char *go[3] = { "go", NULL, NULL, };
/*
* Use this later to determine if a command line was passed
* for the kernel.
*/
struct fastboot_boot_img_hdr *fb_hdr =
(struct fastboot_boot_img_hdr *) interface.transfer_buffer;
/* Skip the mkbootimage header */
image_header_t *hdr =
(image_header_t *)
&interface.transfer_buffer[CFG_FASTBOOT_MKBOOTIMAGE_PAGE_SIZE];
bootm[1] = go[1] = start;
sprintf (start, "0x%x", hdr);
/* Execution should jump to kernel so send the response
now and wait a bit. */
sprintf(response, "OKAY");
fastboot_tx_status(response, strlen(response));
udelay (1000000); /* 1 sec */
if (ntohl(hdr->ih_magic) == IH_MAGIC) {
/* Looks like a kernel.. */
printf ("Booting kernel..\n");
/*
* Check if the user sent a bootargs down.
* If not, do not override what is already there
*/
if (strlen ((char *) &fb_hdr->cmdline[0]))
set_env ("bootargs", (char *) &fb_hdr->cmdline[0]);
do_bootm (NULL, 0, 2, bootm);
} else {
/* Raw image, maybe another uboot */
printf ("Booting raw image..\n");
do_go (NULL, 0, 2, go);
}
printf ("ERROR : bootting failed\n");
printf ("You should reset the board\n");
}
sprintf(response, "FAILinvalid boot image");
ret = 0;
}
/* flash
Flash what was downloaded */
if(memcmp(cmdbuf, "flash:", 6) == 0) {
#if defined(CONFIG_STORAGE_NAND)
if (download_bytes)
{
struct fastboot_ptentry *ptn;
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if (ptn == 0) {
sprintf(response, "FAILpartition does not exist");
} else if ((download_bytes > ptn->length) &&
!(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
sprintf(response, "FAILimage too large for partition");
/* TODO : Improve check for yaffs write */
} else {
/* Check if this is not really a flash write
but rather a saveenv */
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
/* Since the response can only be 64 bytes,
there is no point in having a large error message. */
char err_string[32];
if (saveenv_to_ptn(ptn, &err_string[0])) {
printf("savenv '%s' failed : %s\n", ptn->name, err_string);
sprintf(response, "FAIL%s", err_string);
} else {
printf("partition '%s' saveenv-ed\n", ptn->name);
sprintf(response, "OKAY");
}
} else {
/* Normal case */
if (write_to_ptn(ptn)) {
printf("flashing '%s' failed\n", ptn->name);
sprintf(response, "FAILfailed to flash partition");
} else {
printf("partition '%s' flashed\n", ptn->name);
sprintf(response, "OKAY");
}
}
}
}
else
{
sprintf(response, "FAILno image downloaded");
}
#elif defined(CONFIG_STORAGE_EMMC)
if (download_bytes) {
struct fastboot_ptentry *ptn;
/* Save the MMC controller number */
mmc_controller_no = CFG_FASTBOOT_MMC_NO;
/* Next is the partition name */
ptn = fastboot_flash_find_ptn(cmdbuf + 6);
if (ptn == 0) {
printf("Partition:'%s' does not exist\n", ptn->name);
sprintf(response, "FAILpartition does not exist");
} else if ((download_bytes > ptn->length) &&
!(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV)) {
printf("Image too large for the partition\n");
sprintf(response, "FAILimage too large for partition");
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_ENV) {
/* Check if this is not really a flash write,
* but instead a saveenv
*/
unsigned int i = 0;
/* Env file is expected with a NULL delimeter between
* env variables So replace New line Feeds (0x0a) with
* NULL (0x00)
*/
for (i = 0; i < download_bytes; i++) {
if (interface.transfer_buffer[i] == 0x0a)
interface.transfer_buffer[i] = 0x00;
}
memset(env_ptr->data, 0, ENV_SIZE);
memcpy(env_ptr->data, interface.transfer_buffer, download_bytes);
do_saveenv(NULL, 0, 1, NULL);
printf("saveenv to '%s' DONE!\n", ptn->name);
sprintf(response, "OKAY");
} else {
/* Normal case */
char source[32], dest[32], length[32];
char slot_no[32];
printf("writing to partition '%s'\n", ptn->name);
char *mmc_write[6] = {"mmc", NULL, "write", NULL, NULL, NULL};
char *mmc_init[2] = {"mmcinit", NULL,};
mmc_init[1] = slot_no;
mmc_write[1] = slot_no;
mmc_write[3] = source;
mmc_write[4] = dest;
mmc_write[5] = length;
sprintf(slot_no, "%d", mmc_controller_no);
sprintf(source, "0x%x", interface.transfer_buffer);
sprintf(dest, "0x%x", ptn->start);
sprintf(length, "0x%x", download_bytes);
printf("Initializing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 2, mmc_init))
sprintf(response, "FAIL:Init of MMC card");
else
sprintf(response, "OKAY");
printf("Writing '%s'\n", ptn->name);
if (do_mmc(NULL, 0, 6, mmc_write)) {
printf("Writing '%s' FAILED!\n", ptn->name);
sprintf(response, "FAIL: Write partition");
} else {
printf("Writing '%s' DONE!\n", ptn->name);
sprintf(response, "OKAY");
}
}
} else {
sprintf(response, "FAILno image downloaded");
}
#endif
ret = 0;
}
/* continue
Stop doing fastboot */
if (memcmp(cmdbuf, "continue", 8) == 0) {
sprintf(response, "OKAY");
continue_booting = 1;
ret = 0;
}
/* upload
Upload just the data in a partition */
if ((memcmp(cmdbuf, "upload:", 7) == 0) ||
(memcmp(cmdbuf, "uploadraw:", 10) == 0)) {
#if defined(CONFIG_STORAGE_NAND)
unsigned int adv, delim_index, len;
struct fastboot_ptentry *ptn;
unsigned int is_raw = 0;
/* Is this a raw read ? */
if (memcmp(cmdbuf, "uploadraw:", 10) == 0) {
is_raw = 1;
adv = 10;
} else {
adv = 7;
}
/* Scan to the next ':' to find when the size starts */
len = strlen(cmdbuf);
for (delim_index = adv;
delim_index < len; delim_index++) {
if (cmdbuf[delim_index] == ':') {
/* WARNING, cmdbuf is being modified. */
*((char *) &cmdbuf[delim_index]) = 0;
break;
}
}
ptn = fastboot_flash_find_ptn(cmdbuf + adv);
if (ptn == 0) {
sprintf(response,
"FAILpartition does not exist");
} else {
/* This is how much the user is expecting */
unsigned int user_size;
/*
* This is the maximum size needed for
* this partition
*/
unsigned int size;
/* This is the length of the data */
unsigned int length;
/*
* Used to check previous write of
* the parition
*/
char env_ptn_length_var[128];
char *env_ptn_length_val;
user_size = 0;
if (delim_index < len)
user_size =
simple_strtoul(cmdbuf + delim_index +
1, NULL, 16);
/* Make sure output is padded to block size */
length = ptn->length;
sprintf(env_ptn_length_var,
"%s_nand_size", ptn->name);
env_ptn_length_val = getenv(env_ptn_length_var);
if (env_ptn_length_val) {
length =
simple_strtoul(env_ptn_length_val,
NULL, 16);
/* Catch possible problems */
if (!length)
length = ptn->length;
}
size = length / interface.nand_block_size;
size *= interface.nand_block_size;
if (length % interface.nand_block_size)
size += interface.nand_block_size;
if (is_raw)
size += (size /
interface.nand_block_size) *
interface.nand_oob_size;
if (size > interface.transfer_buffer_size) {
sprintf(response, "FAILdata too large");
} else if (user_size == 0) {
/* Send the data response */
sprintf(response, "DATA%08x", size);
} else if (user_size != size) {
/* This is the wrong size */
sprintf(response, "FAIL");
} else {
/*
* This is where the transfer
* buffer is populated
*/
unsigned char *buf =
interface.transfer_buffer;
char start[32], length[32], type[32],
addr[32];
char *read[6] = { "nand", NULL, NULL,
NULL, NULL, NULL, };
/*
* Setting upload_size causes
* transfer to happen in main loop
*/
upload_size = size;
upload_bytes = 0;
upload_error = 0;
/*
* Poison the transfer buffer, 0xff
* is erase value of nand
*/
memset(buf, 0xff, upload_size);
/* Which flavor of read to use */
if (is_raw)
sprintf(type, "read.raw");
else
sprintf(type, "read.i");
sprintf(addr, "0x%x",
interface.transfer_buffer);
sprintf(start, "0x%x", ptn->start);
sprintf(length, "0x%x", upload_size);
read[1] = type;
read[2] = addr;
read[3] = start;
read[4] = length;
set_ptn_ecc(ptn);
do_nand(NULL, 0, 5, read);
/* Send the data response */
sprintf(response, "DATA%08x", size);
}
}
#endif
ret = 0;
}
fastboot_tx_status(response, strlen(response));
} /* End of command */
return ret;
}
