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6525bffc0a
The DWR-921-C1 Wireless Routers with LTE embedded modem is based on the
MT7620N SoC.
Specification:
* MediaTek MT7620N (580 Mhz)
* 64 MB of RAM
* 16 MB of FLASH
* 802.11bgn radio
* 5x 10/100 Mbps Ethernet (1 WAN and 4 LAN)
* 2x external, detachable (LTE) antennas
* UART header on PCB (57600 8n1)
* 6x LED (GPIO-controlled)
* 1x bi-color Signal Strength LED (GPIO-controlled)
* 2x button
* JBOOT bootloader
The status led has been assigned to the dwr-921-c1:green:sigstrength (lte
signal strength) led. At the end of the boot it is switched off and is
available for lte operation. Work correctly also during sysupgrade
operation.
Installation:
Apply factory image via d-link http web-gui.
How to revert to OEM firmware:
1.) Push the reset button and turn on the power. Wait until LED start
blinking (~10sec.)
2.) Upload original factory image via JBOOT http (IP: 192.168.123.254)
3.) If http doesn't work, it can be done with curl command:
curl -F FN=@XXXXX.bin http://192.168.123.254/upg
where XXXXX.bin is name of firmware file.
Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
75 lines
1.6 KiB
Bash
75 lines
1.6 KiB
Bash
#!/bin/sh
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rt2x00_eeprom_die() {
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echo "rt2x00 eeprom: " "$*"
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exit 1
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}
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rt2x00_eeprom_extract() {
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local part=$1
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local offset=$2
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local count=$3
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local mtd
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mtd=$(find_mtd_part $part)
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[ -n "$mtd" ] || \
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rt2x00_eeprom_die "no mtd device found for partition $part"
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dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \
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rt2x00_eeprom_die "failed to extract from $mtd"
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}
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jboot_eeprom_extract() {
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local part=$1
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local offset=$2
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local mtd
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mtd=$(find_mtd_part $part)
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[ -n "$mtd" ] || \
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rt2x00_eeprom_die "no mtd device found for partition $part"
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jboot_config_read -i $mtd -o $offset -e /lib/firmware/$FIRMWARE 2>/dev/null || \
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rt2x00_eeprom_die "failed to extract from $mtd"
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}
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rt2x00_eeprom_set_macaddr() {
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local macaddr=$1
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[ -n "$macaddr" ] || \
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rt2x00_eeprom_die "invalid wlan mac address"
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macaddr_2bin $macaddr | dd of=/lib/firmware/$FIRMWARE \
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conv=notrunc bs=1 seek=4 count=6 2>/dev/null || \
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rt2x00_eeprom_die "failed to write mac address to eeprom file"
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}
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FW="/lib/firmware/$FIRMWARE"
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[ -e "$FW" ] && exit 0
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. /lib/functions.sh
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. /lib/functions/system.sh
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board=$(board_name)
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case "$FIRMWARE" in
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"soc_wmac.eeprom")
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case $board in
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dlink,dwr-116-a1|\
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dlink,dwr-921-c1)
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wan_mac=$(jboot_config_read -m -i $(find_mtd_part "config") -o 0xE000)
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wifi_mac=$(macaddr_add "$wan_mac" 1)
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jboot_eeprom_extract "config" 0xE000
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rt2x00_eeprom_set_macaddr $wifi_mac
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;;
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tiny-ac)
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wifi_mac=$(mtd_get_mac_ascii u-boot-env INIC_MAC_ADDR)
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rt2x00_eeprom_extract "factory" 0 512
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rt2x00_eeprom_set_macaddr $wifi_mac
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;;
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*)
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rt2x00_eeprom_die "Please define mtd-eeprom in $board DTS file!"
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;;
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esac
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;;
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esac
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