29 Jan
2020
29 Jan
'20
12:28 a.m.
Hello,
I was playing with LTE modem R11e-4G based on ALT3800-B0 chipset.
I was amazed when I got a U-Boot console after command at+cfun=1,1 and
sending several random characters. I assume it's not news for seasoned
wolves who hunt here.
As a modem rookie I did not find a relevant link to this topic during
Google's fast search.
My questions.
Is this behavior generally known?
Can this be a one-piece property (I have only one piece)?
Could it be useful for interesting research?
Is there anyone who cares about it?
I will try to extract parts of the memory using U-boot.
Below you find pieces of the listing.
Best,
Elias
# help
help
? - alias for 'help'
base - print or set address offset
bdinfo - print Board Info structure
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootfw - Load and boot FW from ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
chpart - change active partition
clocks - print clock configuration
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
create_bdinfo- Create Board info
dhcp - boot image via network using DHCP/TFTP protocol
dip - show the Boot mode configuration options
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
exit - exit script
false - do nothing, unsuccessfully
fdt - flattened device tree utility commands
fsinfo - print information about filesystems
fsload - load binary file from a filesystem image
fsloadbsp- load bsp binary files from a filesystem image
fstest - testing filesystems
go - start application at address '[*]addr' (possibly be indirect
address)
gpio - input/set/clear/toggle gpio pins
help - print command description/usage
i2c - I2C sub-system
iminfo - print header information for application image
imxtract- extract a part of a multi-image
initfw - Init FW PLLs
itest - return true/false on integer compare
kermit_stat- Show statistics of the last Kermit session
kermit_stat_print- print kermit statistics at the end of session
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loady - load binary file over serial line (ymodem mode)
loop - infinite loop on address range
loopw - infinite write loop on address range
ls - list files in a directory (default /)
md - memory display
md5sum - compute MD5 message digest
mdc - memory display cyclic
mii - MII utility commands
mm - memory modify (auto-incrementing address)
mtdparts- define flash/nand partitions
mtest - simple RAM read/write test
mw - memory write (fill)
mwc - memory write cyclic
nand - NAND sub-system
nandotp - NAND OTP sub-system
nboot - boot from NAND device
nfs - boot image via network using NFS protocol
nm - memory modify (constant address)
ping - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
rarpboot- boot image via network using RARP/TFTP protocol
reginfo - print register information
reset - Perform RESET of the CPU
reset_cause- print reset cause
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
show_bdinfo- Show board info
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
true - do nothing, successfully
unlzo - decopress a lzo memory region
unzip - unzip a memory region
version - print monitor, compiler and linker version
U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
mips-fourgee3100-linux-uclibc-gcc (0.1) 4.5.3
GNU ld (GNU Binutils) 2.21
#
baudrate=115200
boot_default=run flash_boot
boot_nand_mtd=run nand_choose_rootfs; run flash_set_bootargs; nboot
kernel${boot_number}; nand read ${dtb_addr} dtb${boot_number} ${dtb_size};
bootm ${loadaddr} - ${dtb_addr}
boot_nand_ramfs=run ram_set_bootargs; nboot kernel${boot_number}; bootm
boot_number=2
boot_option=boot_default
boot_tftp_ramfs=run ram_set_bootargs; ${tftpbootcmd} vmlinux.uboot; bootm
${loadaddr}
bootcmd=if itest.b 0 == *a00d001b; then run ${boot_option}; else echo
'GUESS MODE - NO BOOT ALLOWED !!!'; fi
bootdelay=6
bootm_low=0x82100000
bootm_size=0x6000000
cdc_connect_timeout=10
consoledev=ttyS0
dtb_addr=0x84000000
dtb_file=alt3802.dtb
dtb_size=0x4000
env_check=if test ${env_saved} = 0; then setenv env_saved 1; saveenv; fi
env_configured_size=0x4000
env_saved=1
erase_env_nand=nand erase.part env; nand erase.part backup_env
eth_phy_mode=rmii
ethact=usb_ether
ethaddr=00:E0:0C:00:11:A0
fastboot=setenv loadaddr ${fastboot_loadaddr};run loadfw; if test $? -eq 0;
then bootfw ${unziped_fwaddr} 1; fi; run loadotp; if run loadbsp;then run
process_fw; fi;
fastboot_loadaddr=0x82800000
fdt_high=0x83000000
fdtdbg=no
flash_boot=run nand_choose_rootfs; run flash_set_bootargs; run fastboot;
nboot kernel${boot_number}; nand read ${dtb_addr} dtb${boot_number}
${dtb_size}; bootm ${loadaddr} - ${dtb_addr}
flash_set_bootargs=setenv bootargs $ip root=${root} rw rootfstype=jffs2
console=$consoledev,$kernel_baudrate $othbootargs $kernellog
gatewayip=0.0.0.0
hostname=alt3800
initrd_high=0x83000000
ipaddr=10.0.0.1
kernel_baudrate=115200
kernel_file=uImage
kernellog=quiet
load_fw=run load_phy_fw; run load_lte_fw
load_lte_fw=${tftpbootcmd} $lte_fw; setenv fw_type LTE; bootelf
load_phy_fw=${tftpbootcmd} $phy_fw; setenv fw_type PHY; bootelf
loadaddr=0x80100000
loadbsp=chpart nvm; fsloadbsp 1 ${ramFilesShAddr} band_list bandbp
file_list bspfilesbp
loadfw= nand read.jffs2 ${loadaddr} modem_fw${boot_number}; unlzo
${loadaddr} ${unziped_fwaddr};
loadotp=nandotp read ${ramOtpShAddr} spl 20
lte_fw=PS100_RealPHY.elf
mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),3m(kernel1),256k(dtb1),37m(rootfs1),3m(kernel2),256k(dtb2),37m(rootfs2),4m(modem_fw1),4m(modem_fw2),-(tstorage)
nand128_mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),3m(kernel1),256k(dtb1),37m(rootfs1),3m(kernel2),256k(dtb2),37m(rootfs2),4m(modem_fw1),4m(modem_fw2),-(tstorage)
nand128_scheme2_mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),4m(kernel1),256k(dtb1),53m(rootfs1),4m(kernel2),256k(dtb2),53m(rootfs2),4m(modem_fw1),4m(modem_fw2)
nand256_mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),4m(kernel1),256k(dtb1),40m(rootfs1),4m(kernel2),256k(dtb2),40m(rootfs2),4m(modem_fw1),4m(modem_fw2),10m(ua),-(tstorage)
nand_choose_rootfs=if test 1 = ${boot_number}; then setenv root
/dev/mtdblock8;else setenv root /dev/mtdblock11; fi
nand_erasesize=20000
nand_oobsize=40
nand_uboot_file=u-boot.bin
nand_uboot_spl_file=u-boot-spl.bin.alt3800
nand_writesize=800
nc=run nchelp; setenv stdin nc;setenv stdout nc;setenv stderr nc
nchelp=echo On the host side run the script: ./netconsole $ipaddr $ncinport
ncinport=6665
ncip=10.0.0.10
ncmux=run nchelp; setenv stdout ${stdout},nc; setenv stdin ${stdin},nc;
setenv stderr ${stderr},nc
ncoutport=6665
netdev=eth0
netmask=255.255.0.0
nvm_file=nvm.jffs2.img
phy_dbgstreamer=0
phy_fw=Lte.out
phy_sniffer=0
preboot=run env_check; if test -n $prebootcmd; then echo; echo Running
pre-boot command; run prebootcmd;fi;
process_fw=initfw; bootfw ${unziped_fwaddr} 0
ramFilesShAddr=0xA030004c
ramOtpShAddr=0xA0300000
ram_set_bootargs=setenv bootargs $ip root=/dev/ram rw
console=$consoledev,$kernel_baudrate $othbootargs $kernellog
rootfs_file=rootfs.jffs2.img
ser=setenv stdin serial;setenv stdout serial;setenv stderr serial
serverip=10.0.0.10
set_ip=setenv ip
ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off
stderr=serial,usbtty
stdin=serial,usbtty
stdout=serial,usbtty
testdramaddress=no
testdramcache=yes
testdramcount=1
testdramdata=no
testdramsize=0x08000000
testdramstart=0x80100000
testdramwalk=no
tftpbootcmd=tftpboot
toggle_boot_number=if test 1 = ${boot_number}; then set boot_number 2; else
set boot_number 1; fi; saveenv
unziped_fwaddr=0x83000000
update_all=run update_all_nand
update_all_nand=run update_kernel_nand update_dtb_nand update_rootfs_nand
update_dtb=run update_dtb_nand
update_dtb_nand=if ${tftpbootcmd} ${dtb_file}; then nand erase.part
dtb${boot_number}; nand write ${loadaddr} dtb${boot_number} ${filesize}; fi
update_kernel=run update_kernel_nand
update_kernel_nand=if ${tftpbootcmd} ${kernel_file}; then nand erase.part
kernel${boot_number}; nand write ${loadaddr} kernel${boot_number}
${filesize}; fi
update_linux=${tftpbootcmd} uImage
update_multi_img=run update_multi_img_nand
update_multi_img_nand=setenv kernel_file vmlinux.uboot; run
update_kernel_nand
update_nvm=run update_nvm_nand
update_nvm_nand=if ${tftpbootcmd} ${nvm_file}; then nand erase.part nvm;
nand write ${loadaddr} nvm ${filesize}; fi
update_ramdisk=${tftpbootcmd} $ramdiskaddr ramdisk.gz.uboot
update_rootfs=run update_rootfs_nand
update_rootfs_nand=if ${tftpbootcmd} ${rootfs_file}; then nand erase.part
rootfs${boot_number}; nand write ${loadaddr} rootfs${boot_number}
${filesize}; fi
update_uboot=run update_uboot_nand
update_uboot_nand=run update_uboot_nand_spl update_uboot_nand_non_spl
erase_env_nand
update_uboot_nand_non_spl=if ${tftpbootcmd} ${nand_uboot_file}; then nand
erase.part uboot1; nand write ${loadaddr} uboot1 ${filesize}; nand
erase.part uboot2; nand write ${loadaddr} uboot2 ${filesize}; fi
update_uboot_nand_spl=if ${tftpbootcmd} ${nand_uboot_spl_file}; then nand
erase.part spl; nand write ${loadaddr} spl ${filesize}; fi
usbphymode=0
usbtty=cdc_acm
ver=U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
Environment size: 6184/16379 bytes
mtdparts
device nand0 <alt3800_nfc>, # parts = 15
#: name size offset mask_flags
0: spl 0x00080000 0x00000000 0
1: uboot1 0x000c0000 0x00080000 0
2: uboot2 0x000c0000 0x00140000 0
3: env 0x00040000 0x00200000 0
4: backup_env 0x00040000 0x00240000 0
5: nvm 0x00300000 0x00280000 0
6: kernel1 0x00300000 0x00580000 0
7: dtb1 0x00040000 0x00880000 0
8: rootfs1 0x02500000 0x008c0000 0
9: kernel2 0x00300000 0x02dc0000 0
10: dtb2 0x00040000 0x030c0000 0
11: rootfs2 0x02500000 0x03100000 0
12: modem_fw1 0x00400000 0x05600000 0
13: modem_fw2 0x00400000 0x05a00000 0
14: tstorage 0x02200000 0x05e00000 0
active partition: nand0,0 - (spl) 0x00080000 @ 0x00000000
defaults:
mtdids : nand0=alt3800_nfc
mtdparts: uninitialized
3 Feb
3 Feb
1:04 p.m.
Hello,
This is a python script to download flash memory content.
import serial
import time
import re
dev_name = '/dev/ttyACM0'
scoop_size = 0x80
def xmit(data, xtimeout=0.1):
response = b''
try:
with serial.Serial(dev_name, timeout=xtimeout) as ser:
ser.write(data.encode())
while True:
response_tmp = ser.read(1024)
response += response_tmp
if not len(response_tmp) == 1024:
break
except (OSError, FileNotFoundError, serial.serialutil.SerialException) as e:
print('IO exception')
time.sleep(2)
return response.decode('utf-8')
def send_at(at_cmd):
at_cmd += '\r'
return xmit(at_cmd, xtimeout=1.0)
def get_mtd_table():
response = xmit('mtd\r')
start = response.find('#:')
if start < 0:
return ''
line_idx = 0
output = []
for line in response[start:].split('\n\r'):
if len(line) < 2:
break
if line.find('#') >= 0:
continue
rows = line.split()
row_idx = 0
row_dict ={}
row_names = ["idx", "name", "size", "offset",
"flags"]
for row in rows:
if row_idx == 0:
row = re.sub('\:$', '', row)
row_dict[row_names[row_idx]] = row
row_idx += 1
output.append(row_dict)
line_idx += 1
return output
def dump_part(record):
part_size = int(record['size'], 16)
name = record['name']
fd = open(name, 'wb')
response = xmit('nand read ${loadaddr} ' + name + '\r')
print(response)
response = xmit('md.l ${loadaddr} ' + hex(scoop_size) + '\r')
start_part_addr = -1
start_line_addr = 0
linear_addr = 0
run = True
while run:
for line in response.split('\n\r'):
if not run:
break
if line.find(':') < 0:
continue
rows = line.split()
start_line_addr = int(re.sub('\:$', '', rows[0]), 16)
if start_part_addr < 0:
start_part_addr = start_line_addr
if start_line_addr != linear_addr + start_part_addr:
print('error: linear_addr {} != start_line_addr {}'.format(linear_addr +
start_part_addr, start_line_addr))
for i in range(1,5):
fd.write(int(rows[i], 16).to_bytes(4, byteorder='big', signed=False))
linear_addr += 4
if linear_addr >= part_size:
run = False
break
print('linear_addr {}, part_size {}'.format(linear_addr, part_size))
if linear_addr >= part_size:
run = False
break
else:
response = xmit('\r')
fd.close()
xmit(' \r')
for n in range(4):
response = send_at('AT')
if len(response) > 0:
break
else:
time.sleep(4)
send_at('AT')
response = send_at('AT+CFUN?')
if response.find('+CFUN:') >= 0:
print('in AT mode')
send_at('AT+CFUN=1,1')
time.sleep(1)
response = xmit(' \r')
while response.find('#') < 0:
time.sleep(1)
response = xmit(' \r')
if response.find('#') >= 0:
print('in U-Boot')
xmit(' \r')
mtd_table = get_mtd_table()
for record in mtd_table:
dump_part(record)
print('switching back into AT mode')
xmit('run boot_default\r')
else:
print('error: switching into U-Boot failed')
On Wed, 29 Jan 2020 at 00:28, Elias Devoldere <eldevoldere(a)gmail.com> wrote:
Hello,
I was playing with LTE modem R11e-4G based on ALT3800-B0 chipset.
I was amazed when I got a U-Boot console after command at+cfun=1,1 and
sending several random characters. I assume it's not news for seasoned
wolves who hunt here.
As a modem rookie I did not find a relevant link to this topic during
Google's fast search.
My questions.
Is this behavior generally known?
Can this be a one-piece property (I have only one piece)?
Could it be useful for interesting research?
Is there anyone who cares about it?
I will try to extract parts of the memory using U-boot.
Below you find pieces of the listing.
Best,
Elias
# help
help
? - alias for 'help'
base - print or set address offset
bdinfo - print Board Info structure
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootfw - Load and boot FW from ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
chpart - change active partition
clocks - print clock configuration
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
create_bdinfo- Create Board info
dhcp - boot image via network using DHCP/TFTP protocol
dip - show the Boot mode configuration options
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
exit - exit script
false - do nothing, unsuccessfully
fdt - flattened device tree utility commands
fsinfo - print information about filesystems
fsload - load binary file from a filesystem image
fsloadbsp- load bsp binary files from a filesystem image
fstest - testing filesystems
go - start application at address '[*]addr' (possibly be indirect
address)
gpio - input/set/clear/toggle gpio pins
help - print command description/usage
i2c - I2C sub-system
iminfo - print header information for application image
imxtract- extract a part of a multi-image
initfw - Init FW PLLs
itest - return true/false on integer compare
kermit_stat- Show statistics of the last Kermit session
kermit_stat_print- print kermit statistics at the end of session
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loady - load binary file over serial line (ymodem mode)
loop - infinite loop on address range
loopw - infinite write loop on address range
ls - list files in a directory (default /)
md - memory display
md5sum - compute MD5 message digest
mdc - memory display cyclic
mii - MII utility commands
mm - memory modify (auto-incrementing address)
mtdparts- define flash/nand partitions
mtest - simple RAM read/write test
mw - memory write (fill)
mwc - memory write cyclic
nand - NAND sub-system
nandotp - NAND OTP sub-system
nboot - boot from NAND device
nfs - boot image via network using NFS protocol
nm - memory modify (constant address)
ping - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
rarpboot- boot image via network using RARP/TFTP protocol
reginfo - print register information
reset - Perform RESET of the CPU
reset_cause- print reset cause
run - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv - set environment variables
show_bdinfo- Show board info
showvar - print local hushshell variables
sleep - delay execution for some time
source - run script from memory
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
true - do nothing, successfully
unlzo - decopress a lzo memory region
unzip - unzip a memory region
version - print monitor, compiler and linker version
U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
mips-fourgee3100-linux-uclibc-gcc (0.1) 4.5.3
GNU ld (GNU Binutils) 2.21
#
baudrate=115200
boot_default=run flash_boot
boot_nand_mtd=run nand_choose_rootfs; run flash_set_bootargs; nboot
kernel${boot_number}; nand read ${dtb_addr} dtb${boot_number} ${dtb_size};
bootm ${loadaddr} - ${dtb_addr}
boot_nand_ramfs=run ram_set_bootargs; nboot kernel${boot_number}; bootm
boot_number=2
boot_option=boot_default
boot_tftp_ramfs=run ram_set_bootargs; ${tftpbootcmd} vmlinux.uboot; bootm
${loadaddr}
bootcmd=if itest.b 0 == *a00d001b; then run ${boot_option}; else echo
'GUESS MODE - NO BOOT ALLOWED !!!'; fi
bootdelay=6
bootm_low=0x82100000
bootm_size=0x6000000
cdc_connect_timeout=10
consoledev=ttyS0
dtb_addr=0x84000000
dtb_file=alt3802.dtb
dtb_size=0x4000
env_check=if test ${env_saved} = 0; then setenv env_saved 1; saveenv; fi
env_configured_size=0x4000
env_saved=1
erase_env_nand=nand erase.part env; nand erase.part backup_env
eth_phy_mode=rmii
ethact=usb_ether
ethaddr=00:E0:0C:00:11:A0
fastboot=setenv loadaddr ${fastboot_loadaddr};run loadfw; if test $? -eq
0; then bootfw ${unziped_fwaddr} 1; fi; run loadotp; if run loadbsp;then
run process_fw; fi;
fastboot_loadaddr=0x82800000
fdt_high=0x83000000
fdtdbg=no
flash_boot=run nand_choose_rootfs; run flash_set_bootargs; run fastboot;
nboot kernel${boot_number}; nand read ${dtb_addr} dtb${boot_number}
${dtb_size}; bootm ${loadaddr} - ${dtb_addr}
flash_set_bootargs=setenv bootargs $ip root=${root} rw rootfstype=jffs2
console=$consoledev,$kernel_baudrate $othbootargs $kernellog
gatewayip=0.0.0.0
hostname=alt3800
initrd_high=0x83000000
ipaddr=10.0.0.1
kernel_baudrate=115200
kernel_file=uImage
kernellog=quiet
load_fw=run load_phy_fw; run load_lte_fw
load_lte_fw=${tftpbootcmd} $lte_fw; setenv fw_type LTE; bootelf
load_phy_fw=${tftpbootcmd} $phy_fw; setenv fw_type PHY; bootelf
loadaddr=0x80100000
loadbsp=chpart nvm; fsloadbsp 1 ${ramFilesShAddr} band_list bandbp
file_list bspfilesbp
loadfw= nand read.jffs2 ${loadaddr} modem_fw${boot_number}; unlzo
${loadaddr} ${unziped_fwaddr};
loadotp=nandotp read ${ramOtpShAddr} spl 20
lte_fw=PS100_RealPHY.elf
mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),3m(kernel1),256k(dtb1),37m(rootfs1),3m(kernel2),256k(dtb2),37m(rootfs2),4m(modem_fw1),4m(modem_fw2),-(tstorage)
nand128_mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),3m(kernel1),256k(dtb1),37m(rootfs1),3m(kernel2),256k(dtb2),37m(rootfs2),4m(modem_fw1),4m(modem_fw2),-(tstorage)
nand128_scheme2_mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),4m(kernel1),256k(dtb1),53m(rootfs1),4m(kernel2),256k(dtb2),53m(rootfs2),4m(modem_fw1),4m(modem_fw2)
nand256_mtdparts=mtdparts=alt3800_nfc:512k(spl),768k(uboot1),768k(uboot2),256k(env),256k(backup_env),3m(nvm),4m(kernel1),256k(dtb1),40m(rootfs1),4m(kernel2),256k(dtb2),40m(rootfs2),4m(modem_fw1),4m(modem_fw2),10m(ua),-(tstorage)
nand_choose_rootfs=if test 1 = ${boot_number}; then setenv root
/dev/mtdblock8;else setenv root /dev/mtdblock11; fi
nand_erasesize=20000
nand_oobsize=40
nand_uboot_file=u-boot.bin
nand_uboot_spl_file=u-boot-spl.bin.alt3800
nand_writesize=800
nc=run nchelp; setenv stdin nc;setenv stdout nc;setenv stderr nc
nchelp=echo On the host side run the script: ./netconsole $ipaddr $ncinport
ncinport=6665
ncip=10.0.0.10
ncmux=run nchelp; setenv stdout ${stdout},nc; setenv stdin ${stdin},nc;
setenv stderr ${stderr},nc
ncoutport=6665
netdev=eth0
netmask=255.255.0.0
nvm_file=nvm.jffs2.img
phy_dbgstreamer=0
phy_fw=Lte.out
phy_sniffer=0
preboot=run env_check; if test -n $prebootcmd; then echo; echo Running
pre-boot command; run prebootcmd;fi;
process_fw=initfw; bootfw ${unziped_fwaddr} 0
ramFilesShAddr=0xA030004c
ramOtpShAddr=0xA0300000
ram_set_bootargs=setenv bootargs $ip root=/dev/ram rw
console=$consoledev,$kernel_baudrate $othbootargs $kernellog
rootfs_file=rootfs.jffs2.img
ser=setenv stdin serial;setenv stdout serial;setenv stderr serial
serverip=10.0.0.10
set_ip=setenv ip
ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off
stderr=serial,usbtty
stdin=serial,usbtty
stdout=serial,usbtty
testdramaddress=no
testdramcache=yes
testdramcount=1
testdramdata=no
testdramsize=0x08000000
testdramstart=0x80100000
testdramwalk=no
tftpbootcmd=tftpboot
toggle_boot_number=if test 1 = ${boot_number}; then set boot_number 2;
else set boot_number 1; fi; saveenv
unziped_fwaddr=0x83000000
update_all=run update_all_nand
update_all_nand=run update_kernel_nand update_dtb_nand update_rootfs_nand
update_dtb=run update_dtb_nand
update_dtb_nand=if ${tftpbootcmd} ${dtb_file}; then nand erase.part
dtb${boot_number}; nand write ${loadaddr} dtb${boot_number} ${filesize}; fi
update_kernel=run update_kernel_nand
update_kernel_nand=if ${tftpbootcmd} ${kernel_file}; then nand erase.part
kernel${boot_number}; nand write ${loadaddr} kernel${boot_number}
${filesize}; fi
update_linux=${tftpbootcmd} uImage
update_multi_img=run update_multi_img_nand
update_multi_img_nand=setenv kernel_file vmlinux.uboot; run
update_kernel_nand
update_nvm=run update_nvm_nand
update_nvm_nand=if ${tftpbootcmd} ${nvm_file}; then nand erase.part nvm;
nand write ${loadaddr} nvm ${filesize}; fi
update_ramdisk=${tftpbootcmd} $ramdiskaddr ramdisk.gz.uboot
update_rootfs=run update_rootfs_nand
update_rootfs_nand=if ${tftpbootcmd} ${rootfs_file}; then nand erase.part
rootfs${boot_number}; nand write ${loadaddr} rootfs${boot_number}
${filesize}; fi
update_uboot=run update_uboot_nand
update_uboot_nand=run update_uboot_nand_spl update_uboot_nand_non_spl
erase_env_nand
update_uboot_nand_non_spl=if ${tftpbootcmd} ${nand_uboot_file}; then nand
erase.part uboot1; nand write ${loadaddr} uboot1 ${filesize}; nand
erase.part uboot2; nand write ${loadaddr} uboot2 ${filesize}; fi
update_uboot_nand_spl=if ${tftpbootcmd} ${nand_uboot_spl_file}; then nand
erase.part spl; nand write ${loadaddr} spl ${filesize}; fi
usbphymode=0
usbtty=cdc_acm
ver=U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
Environment size: 6184/16379 bytes
mtdparts
device nand0 <alt3800_nfc>, # parts = 15
#: name size offset mask_flags
0: spl 0x00080000 0x00000000 0
1: uboot1 0x000c0000 0x00080000 0
2: uboot2 0x000c0000 0x00140000 0
3: env 0x00040000 0x00200000 0
4: backup_env 0x00040000 0x00240000 0
5: nvm 0x00300000 0x00280000 0
6: kernel1 0x00300000 0x00580000 0
7: dtb1 0x00040000 0x00880000 0
8: rootfs1 0x02500000 0x008c0000 0
9: kernel2 0x00300000 0x02dc0000 0
10: dtb2 0x00040000 0x030c0000 0
11: rootfs2 0x02500000 0x03100000 0
12: modem_fw1 0x00400000 0x05600000 0
13: modem_fw2 0x00400000 0x05a00000 0
14: tstorage 0x02200000 0x05e00000 0
active partition: nand0,0 - (spl) 0x00080000 @ 0x00000000
defaults:
mtdids : nand0=alt3800_nfc
mtdparts: uninitialized
5 Feb
5 Feb
1:45 p.m.
Hi Elias,
On Mon, Feb 03, 2020 at 01:04:10PM +0100, Elias Devoldere wrote:
This is a python script to download flash memory
content.
Thanks. unfortunately it looks like your e-mail client has completely upset the
indenting,
which in python is fatal.
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
1:43 p.m.
Hi Elias,
thanks for reaching out.
On Wed, Jan 29, 2020 at 12:28:37AM +0100, Elias Devoldere wrote:
I was playing with LTE modem R11e-4G based on
ALT3800-B0 chipset.
I've read about Altair (now part of sony) based modems, but never had any actual
contact with them.
It seems that one HL78 NB-IoT modem from Sierra Wireless as well as the L866
from Telit seems to be based on Altair, but I wasn't aware that Mikrotik is
also using Altair.
I was amazed when I got a U-Boot console after command
at+cfun=1,1 and
sending several random characters. I assume it's not news for seasoned
wolves who hunt here.
This is highly unexpected, of course.
Is this behavior generally known?
I've never heard of it, certainly it was not a topic in Osmocom so far.
Can this be a one-piece property (I have only one
piece)?
possibly, but more likely it relates to the specific firmware build.
Could it be useful for interesting research?
of course.
Is there anyone who cares about it?
I do.
I will try to extract parts of the memory using
U-boot.
good luck!
U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
mips-fourgee3100-linux-uclibc-gcc (0.1) 4.5.3
ok, so we know it's a MIPS architecture, and we know it's the fourgee3100
(Altair 3100) for whihc it was originally written. The 3800 is likely
bcakwards compatible then.
'GUESS MODE - NO BOOT ALLOWED !!!'; fi
whatever a GUESS MODE is
dtb_file=alt3802.dtb
3802 is even a more specific part number
lte_fw=PS100_RealPHY.elf
also interesting that the PHY firmware comes as ELF file, would be interesting
to see what ELF architecture it is for.
ver=U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
always surprising what kind of stone age versions are in use :)
Please do keep us posed. I odered one of those modems myself, too.
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
6 Feb
6 Feb
10:43 a.m.
Hi all,
I didn't knew that MikroTik is also doing LTE these days, and seems that there
are more interesting products from them.
They also have additional modems:
* R11e-LTE: https://mikrotik.com/product/r11e_lte
* R11e-LTE-US: https://mikrotik.com/product/r11e_lte_us
* R11e-LTE6: https://mikrotik.com/product/r11e_lte6
According to internal photos for FCC ID [1], R11e-LTE6 seems to have... ASR
Micro LTE modems. Never heard about that company before, but seems that they
have acquired Marvell's baseband business and their chipset is used in mobile
routers. R11e-LTE-US [2] and probablyt also R11e-LTE seems to use Qualcomm
MDM9207, nothing seems so special here.
[1] https://fcc.report/FCC-ID/TV711ELTE6/4191387
[2] https://fccid.io/TV7R11ELTE/Internal-Photos/Internal-Photos-3591471
Best regards,
Shinjo
2020년 2월 5일 수요일 오후 1시 43분 17초 CET에 Harald Welte 님이 쓴 글:
Hi Elias,
thanks for reaching out.
On Wed, Jan 29, 2020 at 12:28:37AM +0100, Elias Devoldere wrote:
--
Shinjo Park <pshinjo(a)sect.tu-berlin.de>
Security in Telecommunications <sect.tu-berlin.de>
TU Berlin / Telekom Innovation Laboratories
Ernst-Reuter-Platz 7, Sekr TEL 16 / D - 10587 Berlin, Germany
Phone: +49 30 8353 58272
I was playing with LTE modem R11e-4G based on
ALT3800-B0 chipset.
I've read about Altair (now part of sony) based modems, but never had any
actual contact with them.
It seems that one HL78 NB-IoT modem from Sierra Wireless as well as the L866
from Telit seems to be based on Altair, but I wasn't aware that Mikrotik is
also using Altair.
I was amazed when I got a U-Boot console after
command at+cfun=1,1 and
sending several random characters. I assume it's not news for seasoned
wolves who hunt here.
This is highly unexpected, of course.
Is this behavior generally known?
I've never heard of it, certainly it was not a topic in Osmocom so far.
Can this be a one-piece property (I have only one
piece)?
possibly, but more likely it relates to the specific firmware build.
Could it be useful for interesting research?
of course.
Is there anyone who cares about it?
I do.
I will try to extract parts of the memory using
U-boot.
good luck!
U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
mips-fourgee3100-linux-uclibc-gcc (0.1) 4.5.3
ok, so we know it's a MIPS architecture, and we know it's the fourgee3100
(Altair 3100) for whihc it was originally written. The 3800 is likely
bcakwards compatible then.
'GUESS MODE - NO BOOT ALLOWED !!!'; fi
whatever a GUESS MODE is
dtb_file=alt3802.dtb
3802 is even a more specific part number
lte_fw=PS100_RealPHY.elf
also interesting that the PHY firmware comes as ELF file, would be
interesting to see what ELF architecture it is for.
ver=U-Boot 2012.10 (Aug 09 2018 - 10:17:38)
always surprising what kind of stone age versions are in use :)
Please do keep us posed. I odered one of those modems myself, too.
3:10 p.m.
On Thu, Feb 06, 2020 at 10:43:48AM +0100, Shinjo Park wrote:
I didn't knew that MikroTik is also doing LTE
these days,
They are actually selling LTE eNB these days, not sure if you noticed that, too?
The products are called "InterCell"
Unfortunately only in rather weird bands so far.
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
7 Feb
7 Feb
2:45 p.m.
Hi Elias and community,
I created a redmine project on osmocom.org and added some initial information
at https://osmocom.org/projects/altair-lte-modems/wiki/Mikrotik_R11e-4G
As can be seen, it's easy to get access to a serial console if you know the
pin-out and have one of our Osmocom mPCIe breakout boards.
Happy hacking!
--
- Harald Welte <laforge(a)osmocom.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
1546
days inactive
1556
days old
qc-linux-modems@lists.osmocom.org
6 comments
3 participants
participants (3)
-
Elias Devoldere -
Harald Welte -
Shinjo Park