mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
c7ff552843
This code allows using DFU defined mediums for storing data received via TFTP protocol. It reuses and preserves functionality of legacy code at common/update.c. The update_tftp() function now accepts parameters - namely medium device name and its number (e.g. mmc 1). Without this information passed old behavior is preserved. Signed-off-by: Lukasz Majewski <l.majewski@majess.pl> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
334 lines
8 KiB
C
334 lines
8 KiB
C
/*
|
|
* (C) Copyright 2008 Semihalf
|
|
*
|
|
* Written by: Rafal Czubak <rcz@semihalf.com>
|
|
* Bartlomiej Sieka <tur@semihalf.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
#if !(defined(CONFIG_FIT) && defined(CONFIG_OF_LIBFDT))
|
|
#error "CONFIG_FIT and CONFIG_OF_LIBFDT are required for auto-update feature"
|
|
#endif
|
|
|
|
#if defined(CONFIG_UPDATE_TFTP) && defined(CONFIG_SYS_NO_FLASH)
|
|
#error "CONFIG_UPDATE_TFTP and CONFIG_SYS_NO_FLASH needed for legacy behaviour"
|
|
#endif
|
|
|
|
#include <command.h>
|
|
#include <flash.h>
|
|
#include <net.h>
|
|
#include <net/tftp.h>
|
|
#include <malloc.h>
|
|
#include <dfu.h>
|
|
#include <errno.h>
|
|
|
|
/* env variable holding the location of the update file */
|
|
#define UPDATE_FILE_ENV "updatefile"
|
|
|
|
/* set configuration defaults if needed */
|
|
#ifndef CONFIG_UPDATE_LOAD_ADDR
|
|
#define CONFIG_UPDATE_LOAD_ADDR 0x100000
|
|
#endif
|
|
|
|
#ifndef CONFIG_UPDATE_TFTP_MSEC_MAX
|
|
#define CONFIG_UPDATE_TFTP_MSEC_MAX 100
|
|
#endif
|
|
|
|
#ifndef CONFIG_UPDATE_TFTP_CNT_MAX
|
|
#define CONFIG_UPDATE_TFTP_CNT_MAX 0
|
|
#endif
|
|
|
|
extern ulong tftp_timeout_ms;
|
|
extern int tftp_timeout_count_max;
|
|
extern ulong load_addr;
|
|
#ifndef CONFIG_SYS_NO_FLASH
|
|
extern flash_info_t flash_info[];
|
|
static uchar *saved_prot_info;
|
|
#endif
|
|
static int update_load(char *filename, ulong msec_max, int cnt_max, ulong addr)
|
|
{
|
|
int size, rv;
|
|
ulong saved_timeout_msecs;
|
|
int saved_timeout_count;
|
|
char *saved_netretry, *saved_bootfile;
|
|
|
|
rv = 0;
|
|
/* save used globals and env variable */
|
|
saved_timeout_msecs = tftp_timeout_ms;
|
|
saved_timeout_count = tftp_timeout_count_max;
|
|
saved_netretry = strdup(getenv("netretry"));
|
|
saved_bootfile = strdup(net_boot_file_name);
|
|
|
|
/* set timeouts for auto-update */
|
|
tftp_timeout_ms = msec_max;
|
|
tftp_timeout_count_max = cnt_max;
|
|
|
|
/* we don't want to retry the connection if errors occur */
|
|
setenv("netretry", "no");
|
|
|
|
/* download the update file */
|
|
load_addr = addr;
|
|
copy_filename(net_boot_file_name, filename, sizeof(net_boot_file_name));
|
|
size = net_loop(TFTPGET);
|
|
|
|
if (size < 0)
|
|
rv = 1;
|
|
else if (size > 0)
|
|
flush_cache(addr, size);
|
|
|
|
/* restore changed globals and env variable */
|
|
tftp_timeout_ms = saved_timeout_msecs;
|
|
tftp_timeout_count_max = saved_timeout_count;
|
|
|
|
setenv("netretry", saved_netretry);
|
|
if (saved_netretry != NULL)
|
|
free(saved_netretry);
|
|
|
|
if (saved_bootfile != NULL) {
|
|
copy_filename(net_boot_file_name, saved_bootfile,
|
|
sizeof(net_boot_file_name));
|
|
free(saved_bootfile);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
#ifndef CONFIG_SYS_NO_FLASH
|
|
static int update_flash_protect(int prot, ulong addr_first, ulong addr_last)
|
|
{
|
|
uchar *sp_info_ptr;
|
|
ulong s;
|
|
int i, bank, cnt;
|
|
flash_info_t *info;
|
|
|
|
sp_info_ptr = NULL;
|
|
|
|
if (prot == 0) {
|
|
saved_prot_info =
|
|
calloc(CONFIG_SYS_MAX_FLASH_BANKS * CONFIG_SYS_MAX_FLASH_SECT, 1);
|
|
if (!saved_prot_info)
|
|
return 1;
|
|
}
|
|
|
|
for (bank = 0; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
|
|
cnt = 0;
|
|
info = &flash_info[bank];
|
|
|
|
/* Nothing to do if the bank doesn't exist */
|
|
if (info->sector_count == 0)
|
|
return 0;
|
|
|
|
/* Point to current bank protection information */
|
|
sp_info_ptr = saved_prot_info + (bank * CONFIG_SYS_MAX_FLASH_SECT);
|
|
|
|
/*
|
|
* Adjust addr_first or addr_last if we are on bank boundary.
|
|
* Address space between banks must be continuous for other
|
|
* flash functions (like flash_sect_erase or flash_write) to
|
|
* succeed. Banks must also be numbered in correct order,
|
|
* according to increasing addresses.
|
|
*/
|
|
if (addr_last > info->start[0] + info->size - 1)
|
|
addr_last = info->start[0] + info->size - 1;
|
|
if (addr_first < info->start[0])
|
|
addr_first = info->start[0];
|
|
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
/* Save current information about protected sectors */
|
|
if (prot == 0) {
|
|
s = info->start[i];
|
|
if ((s >= addr_first) && (s <= addr_last))
|
|
sp_info_ptr[i] = info->protect[i];
|
|
|
|
}
|
|
|
|
/* Protect/unprotect sectors */
|
|
if (sp_info_ptr[i] == 1) {
|
|
#if defined(CONFIG_SYS_FLASH_PROTECTION)
|
|
if (flash_real_protect(info, i, prot))
|
|
return 1;
|
|
#else
|
|
info->protect[i] = prot;
|
|
#endif
|
|
cnt++;
|
|
}
|
|
}
|
|
|
|
if (cnt) {
|
|
printf("%sProtected %d sectors\n",
|
|
prot ? "": "Un-", cnt);
|
|
}
|
|
}
|
|
|
|
if((prot == 1) && saved_prot_info)
|
|
free(saved_prot_info);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int update_flash(ulong addr_source, ulong addr_first, ulong size)
|
|
{
|
|
#ifndef CONFIG_SYS_NO_FLASH
|
|
ulong addr_last = addr_first + size - 1;
|
|
|
|
/* round last address to the sector boundary */
|
|
if (flash_sect_roundb(&addr_last) > 0)
|
|
return 1;
|
|
|
|
if (addr_first >= addr_last) {
|
|
printf("Error: end address exceeds addressing space\n");
|
|
return 1;
|
|
}
|
|
|
|
/* remove protection on processed sectors */
|
|
if (update_flash_protect(0, addr_first, addr_last) > 0) {
|
|
printf("Error: could not unprotect flash sectors\n");
|
|
return 1;
|
|
}
|
|
|
|
printf("Erasing 0x%08lx - 0x%08lx", addr_first, addr_last);
|
|
if (flash_sect_erase(addr_first, addr_last) > 0) {
|
|
printf("Error: could not erase flash\n");
|
|
return 1;
|
|
}
|
|
|
|
printf("Copying to flash...");
|
|
if (flash_write((char *)addr_source, addr_first, size) > 0) {
|
|
printf("Error: could not copy to flash\n");
|
|
return 1;
|
|
}
|
|
printf("done\n");
|
|
|
|
/* enable protection on processed sectors */
|
|
if (update_flash_protect(1, addr_first, addr_last) > 0) {
|
|
printf("Error: could not protect flash sectors\n");
|
|
return 1;
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int update_fit_getparams(const void *fit, int noffset, ulong *addr,
|
|
ulong *fladdr, ulong *size)
|
|
{
|
|
const void *data;
|
|
|
|
if (fit_image_get_data(fit, noffset, &data, (size_t *)size))
|
|
return 1;
|
|
|
|
if (fit_image_get_load(fit, noffset, (ulong *)fladdr))
|
|
return 1;
|
|
|
|
*addr = (ulong)data;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int update_tftp(ulong addr, char *interface, char *devstring)
|
|
{
|
|
char *filename, *env_addr, *fit_image_name;
|
|
ulong update_addr, update_fladdr, update_size;
|
|
int images_noffset, ndepth, noffset;
|
|
bool update_tftp_dfu;
|
|
int ret = 0;
|
|
void *fit;
|
|
|
|
if (interface == NULL && devstring == NULL) {
|
|
update_tftp_dfu = false;
|
|
} else if (interface && devstring) {
|
|
update_tftp_dfu = true;
|
|
} else {
|
|
error("Interface: %s and devstring: %s not supported!\n",
|
|
interface, devstring);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* use already present image */
|
|
if (addr)
|
|
goto got_update_file;
|
|
|
|
printf("Auto-update from TFTP: ");
|
|
|
|
/* get the file name of the update file */
|
|
filename = getenv(UPDATE_FILE_ENV);
|
|
if (filename == NULL) {
|
|
printf("failed, env. variable '%s' not found\n",
|
|
UPDATE_FILE_ENV);
|
|
return 1;
|
|
}
|
|
|
|
printf("trying update file '%s'\n", filename);
|
|
|
|
/* get load address of downloaded update file */
|
|
if ((env_addr = getenv("loadaddr")) != NULL)
|
|
addr = simple_strtoul(env_addr, NULL, 16);
|
|
else
|
|
addr = CONFIG_UPDATE_LOAD_ADDR;
|
|
|
|
|
|
if (update_load(filename, CONFIG_UPDATE_TFTP_MSEC_MAX,
|
|
CONFIG_UPDATE_TFTP_CNT_MAX, addr)) {
|
|
printf("Can't load update file, aborting auto-update\n");
|
|
return 1;
|
|
}
|
|
|
|
got_update_file:
|
|
fit = (void *)addr;
|
|
|
|
if (!fit_check_format((void *)fit)) {
|
|
printf("Bad FIT format of the update file, aborting "
|
|
"auto-update\n");
|
|
return 1;
|
|
}
|
|
|
|
/* process updates */
|
|
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
|
|
|
|
ndepth = 0;
|
|
noffset = fdt_next_node(fit, images_noffset, &ndepth);
|
|
while (noffset >= 0 && ndepth > 0) {
|
|
if (ndepth != 1)
|
|
goto next_node;
|
|
|
|
fit_image_name = (char *)fit_get_name(fit, noffset, NULL);
|
|
printf("Processing update '%s' :", fit_image_name);
|
|
|
|
if (!fit_image_verify(fit, noffset)) {
|
|
printf("Error: invalid update hash, aborting\n");
|
|
ret = 1;
|
|
goto next_node;
|
|
}
|
|
|
|
printf("\n");
|
|
if (update_fit_getparams(fit, noffset, &update_addr,
|
|
&update_fladdr, &update_size)) {
|
|
printf("Error: can't get update parameteres, "
|
|
"aborting\n");
|
|
ret = 1;
|
|
goto next_node;
|
|
}
|
|
|
|
if (!update_tftp_dfu) {
|
|
if (update_flash(update_addr, update_fladdr,
|
|
update_size)) {
|
|
printf("Error: can't flash update, aborting\n");
|
|
ret = 1;
|
|
goto next_node;
|
|
}
|
|
} else if (fit_image_check_type(fit, noffset,
|
|
IH_TYPE_FIRMWARE)) {
|
|
ret = dfu_tftp_write(fit_image_name, update_addr,
|
|
update_size, interface, devstring);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
next_node:
|
|
noffset = fdt_next_node(fit, noffset, &ndepth);
|
|
}
|
|
|
|
return ret;
|
|
}
|