upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
375 lines
8.3 KiB
375 lines
8.3 KiB
/*
|
|
* dfu.c -- DFU back-end routines
|
|
*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* author: Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <mmc.h>
|
|
#include <fat.h>
|
|
#include <dfu.h>
|
|
#include <linux/list.h>
|
|
#include <linux/compiler.h>
|
|
|
|
static LIST_HEAD(dfu_list);
|
|
static int dfu_alt_num;
|
|
|
|
static int dfu_find_alt_num(const char *s)
|
|
{
|
|
int i = 0;
|
|
|
|
for (; *s; s++)
|
|
if (*s == ';')
|
|
i++;
|
|
|
|
return ++i;
|
|
}
|
|
|
|
static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
|
|
dfu_buf[DFU_DATA_BUF_SIZE];
|
|
|
|
static int dfu_write_buffer_drain(struct dfu_entity *dfu)
|
|
{
|
|
long w_size;
|
|
int ret;
|
|
|
|
/* flush size? */
|
|
w_size = dfu->i_buf - dfu->i_buf_start;
|
|
if (w_size == 0)
|
|
return 0;
|
|
|
|
/* update CRC32 */
|
|
dfu->crc = crc32(dfu->crc, dfu->i_buf_start, w_size);
|
|
|
|
ret = dfu->write_medium(dfu, dfu->offset, dfu->i_buf_start, &w_size);
|
|
if (ret)
|
|
debug("%s: Write error!\n", __func__);
|
|
|
|
/* point back */
|
|
dfu->i_buf = dfu->i_buf_start;
|
|
|
|
/* update offset */
|
|
dfu->offset += w_size;
|
|
|
|
puts("#");
|
|
|
|
return ret;
|
|
}
|
|
|
|
int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
|
|
{
|
|
int ret = 0;
|
|
int tret;
|
|
|
|
debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x offset: 0x%llx bufoffset: 0x%x\n",
|
|
__func__, dfu->name, buf, size, blk_seq_num, dfu->offset,
|
|
dfu->i_buf - dfu->i_buf_start);
|
|
|
|
if (!dfu->inited) {
|
|
/* initial state */
|
|
dfu->crc = 0;
|
|
dfu->offset = 0;
|
|
dfu->i_blk_seq_num = 0;
|
|
dfu->i_buf_start = dfu_buf;
|
|
dfu->i_buf_end = dfu_buf + sizeof(dfu_buf);
|
|
dfu->i_buf = dfu->i_buf_start;
|
|
|
|
dfu->inited = 1;
|
|
}
|
|
|
|
if (dfu->i_blk_seq_num != blk_seq_num) {
|
|
printf("%s: Wrong sequence number! [%d] [%d]\n",
|
|
__func__, dfu->i_blk_seq_num, blk_seq_num);
|
|
return -1;
|
|
}
|
|
|
|
/* DFU 1.1 standard says:
|
|
* The wBlockNum field is a block sequence number. It increments each
|
|
* time a block is transferred, wrapping to zero from 65,535. It is used
|
|
* to provide useful context to the DFU loader in the device."
|
|
*
|
|
* This means that it's a 16 bit counter that roll-overs at
|
|
* 0xffff -> 0x0000. By having a typical 4K transfer block
|
|
* we roll-over at exactly 256MB. Not very fun to debug.
|
|
*
|
|
* Handling rollover, and having an inited variable,
|
|
* makes things work.
|
|
*/
|
|
|
|
/* handle rollover */
|
|
dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
|
|
|
|
/* flush buffer if overflow */
|
|
if ((dfu->i_buf + size) > dfu->i_buf_end) {
|
|
tret = dfu_write_buffer_drain(dfu);
|
|
if (ret == 0)
|
|
ret = tret;
|
|
}
|
|
|
|
/* we should be in buffer now (if not then size too large) */
|
|
if ((dfu->i_buf + size) > dfu->i_buf_end) {
|
|
printf("%s: Wrong size! [%d] [%d] - %d\n",
|
|
__func__, dfu->i_blk_seq_num, blk_seq_num, size);
|
|
return -1;
|
|
}
|
|
|
|
memcpy(dfu->i_buf, buf, size);
|
|
dfu->i_buf += size;
|
|
|
|
/* if end or if buffer full flush */
|
|
if (size == 0 || (dfu->i_buf + size) > dfu->i_buf_end) {
|
|
tret = dfu_write_buffer_drain(dfu);
|
|
if (ret == 0)
|
|
ret = tret;
|
|
}
|
|
|
|
/* end? */
|
|
if (size == 0) {
|
|
/* Now try and flush to the medium if needed. */
|
|
if (dfu->flush_medium)
|
|
ret = dfu->flush_medium(dfu);
|
|
printf("\nDFU complete CRC32: 0x%08x\n", dfu->crc);
|
|
|
|
/* clear everything */
|
|
dfu->crc = 0;
|
|
dfu->offset = 0;
|
|
dfu->i_blk_seq_num = 0;
|
|
dfu->i_buf_start = dfu_buf;
|
|
dfu->i_buf_end = dfu_buf + sizeof(dfu_buf);
|
|
dfu->i_buf = dfu->i_buf_start;
|
|
|
|
dfu->inited = 0;
|
|
|
|
}
|
|
|
|
return ret = 0 ? size : ret;
|
|
}
|
|
|
|
static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size)
|
|
{
|
|
long chunk;
|
|
int ret, readn;
|
|
|
|
readn = 0;
|
|
while (size > 0) {
|
|
/* get chunk that can be read */
|
|
chunk = min(size, dfu->b_left);
|
|
/* consume */
|
|
if (chunk > 0) {
|
|
memcpy(buf, dfu->i_buf, chunk);
|
|
dfu->crc = crc32(dfu->crc, buf, chunk);
|
|
dfu->i_buf += chunk;
|
|
dfu->b_left -= chunk;
|
|
size -= chunk;
|
|
buf += chunk;
|
|
readn += chunk;
|
|
}
|
|
|
|
/* all done */
|
|
if (size > 0) {
|
|
/* no more to read */
|
|
if (dfu->r_left == 0)
|
|
break;
|
|
|
|
dfu->i_buf = dfu->i_buf_start;
|
|
dfu->b_left = dfu->i_buf_end - dfu->i_buf_start;
|
|
|
|
/* got to read, but buffer is empty */
|
|
if (dfu->b_left > dfu->r_left)
|
|
dfu->b_left = dfu->r_left;
|
|
ret = dfu->read_medium(dfu, dfu->offset, dfu->i_buf,
|
|
&dfu->b_left);
|
|
if (ret != 0) {
|
|
debug("%s: Read error!\n", __func__);
|
|
return ret;
|
|
}
|
|
dfu->offset += dfu->b_left;
|
|
dfu->r_left -= dfu->b_left;
|
|
|
|
puts("#");
|
|
}
|
|
}
|
|
|
|
return readn;
|
|
}
|
|
|
|
int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
|
|
{
|
|
int ret = 0;
|
|
|
|
debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
|
|
__func__, dfu->name, buf, size, blk_seq_num, dfu->i_buf);
|
|
|
|
if (!dfu->inited) {
|
|
ret = dfu->read_medium(dfu, 0, buf, &dfu->r_left);
|
|
if (ret != 0) {
|
|
debug("%s: failed to get r_left\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
debug("%s: %s %ld [B]\n", __func__, dfu->name, dfu->r_left);
|
|
|
|
dfu->i_blk_seq_num = 0;
|
|
dfu->crc = 0;
|
|
dfu->offset = 0;
|
|
dfu->i_buf_start = dfu_buf;
|
|
dfu->i_buf_end = dfu_buf + sizeof(dfu_buf);
|
|
dfu->i_buf = dfu->i_buf_start;
|
|
dfu->b_left = 0;
|
|
|
|
dfu->inited = 1;
|
|
}
|
|
|
|
if (dfu->i_blk_seq_num != blk_seq_num) {
|
|
printf("%s: Wrong sequence number! [%d] [%d]\n",
|
|
__func__, dfu->i_blk_seq_num, blk_seq_num);
|
|
return -1;
|
|
}
|
|
/* handle rollover */
|
|
dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
|
|
|
|
ret = dfu_read_buffer_fill(dfu, buf, size);
|
|
if (ret < 0) {
|
|
printf("%s: Failed to fill buffer\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
if (ret < size) {
|
|
debug("%s: %s CRC32: 0x%x\n", __func__, dfu->name, dfu->crc);
|
|
puts("\nUPLOAD ... done\nCtrl+C to exit ...\n");
|
|
|
|
dfu->i_blk_seq_num = 0;
|
|
dfu->crc = 0;
|
|
dfu->offset = 0;
|
|
dfu->i_buf_start = dfu_buf;
|
|
dfu->i_buf_end = dfu_buf + sizeof(dfu_buf);
|
|
dfu->i_buf = dfu->i_buf_start;
|
|
dfu->b_left = 0;
|
|
|
|
dfu->inited = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
|
|
char *interface, int num)
|
|
{
|
|
char *st;
|
|
|
|
debug("%s: %s interface: %s num: %d\n", __func__, s, interface, num);
|
|
st = strsep(&s, " ");
|
|
strcpy(dfu->name, st);
|
|
|
|
dfu->dev_num = num;
|
|
dfu->alt = alt;
|
|
|
|
/* Specific for mmc device */
|
|
if (strcmp(interface, "mmc") == 0) {
|
|
if (dfu_fill_entity_mmc(dfu, s))
|
|
return -1;
|
|
} else {
|
|
printf("%s: Device %s not (yet) supported!\n",
|
|
__func__, interface);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dfu_free_entities(void)
|
|
{
|
|
struct dfu_entity *dfu, *p, *t = NULL;
|
|
|
|
list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) {
|
|
list_del(&dfu->list);
|
|
t = dfu;
|
|
}
|
|
if (t)
|
|
free(t);
|
|
INIT_LIST_HEAD(&dfu_list);
|
|
}
|
|
|
|
int dfu_config_entities(char *env, char *interface, int num)
|
|
{
|
|
struct dfu_entity *dfu;
|
|
int i, ret;
|
|
char *s;
|
|
|
|
dfu_alt_num = dfu_find_alt_num(env);
|
|
debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num);
|
|
|
|
dfu = calloc(sizeof(*dfu), dfu_alt_num);
|
|
if (!dfu)
|
|
return -1;
|
|
for (i = 0; i < dfu_alt_num; i++) {
|
|
|
|
s = strsep(&env, ";");
|
|
ret = dfu_fill_entity(&dfu[i], s, i, interface, num);
|
|
if (ret)
|
|
return -1;
|
|
|
|
list_add_tail(&dfu[i].list, &dfu_list);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
const char *dfu_get_dev_type(enum dfu_device_type t)
|
|
{
|
|
const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND" };
|
|
return dev_t[t];
|
|
}
|
|
|
|
const char *dfu_get_layout(enum dfu_layout l)
|
|
{
|
|
const char *dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2",
|
|
"EXT3", "EXT4" };
|
|
return dfu_layout[l];
|
|
}
|
|
|
|
void dfu_show_entities(void)
|
|
{
|
|
struct dfu_entity *dfu;
|
|
|
|
puts("DFU alt settings list:\n");
|
|
|
|
list_for_each_entry(dfu, &dfu_list, list) {
|
|
printf("dev: %s alt: %d name: %s layout: %s\n",
|
|
dfu_get_dev_type(dfu->dev_type), dfu->alt,
|
|
dfu->name, dfu_get_layout(dfu->layout));
|
|
}
|
|
}
|
|
|
|
int dfu_get_alt_number(void)
|
|
{
|
|
return dfu_alt_num;
|
|
}
|
|
|
|
struct dfu_entity *dfu_get_entity(int alt)
|
|
{
|
|
struct dfu_entity *dfu;
|
|
|
|
list_for_each_entry(dfu, &dfu_list, list) {
|
|
if (dfu->alt == alt)
|
|
return dfu;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|