I have had an old DIR-615 that has been stuck in LEDE 17.01.4 for as long as the development stopped for the hardware.
I would like to change it for a new unnamed access point I found that is based on the MT7620A chip, it has 512Mb (64MB) DDR2 SDRAM ( NT5TU32M16DG), 64Mb (8MB) of serial flash (MX25L6406E), has 2 eth ports (going to the SoC) with no external switch.
Do you know of any OpenWrt image that would be close enough to this device to work? I'm looking for a premade image, I haven't compiled anything with an OS before (only microcontrollers). I took some info from the original OS, it's a Chinese AP, but it has telnet:
XTDPLINK-B000B0 login: Password: BusyBox v1.20.2 (2015-06-17 05:07:09 GMT) built-in shell (ash) Enter 'help' for a list of built-in commands. admin@XTDPLINK-B000B0:~# ls bin dev etc_ro lib media proc sys var boot etc init linuxrc prj sbin tmp admin@XTDPLINK-B000B0:~# ls /bin arping echo killall mv switch ash env ln netstat tar ated eraseall logger nvram_daemon telnet awk expand login nvram_get tftp basename expr ls nvram_set tftpd busybox false lua ping touch cat gpio luac ps true chat gunzip mhe pwd udpsvd chmod he mii_mgr ralink_init umount cp hostname mii_mgr_cl45 reg uname cut iwconfig mkdir rm usleep date iwlist mknod sed vi dirname iwpriv mount sh wscd dnsdomainname kill mtd_write sleep zcat admin@XTDPLINK-B000B0:~# ls /sbin/ arp init modprobe syslogd brctl insmod poweroff tc depmod iptables pppd telnetd getty iptables-restore reboot udhcpc halt iptables-save rmmod vconfig ifconfig lsmod route xtables-multi admin@XTDPLINK-B000B0:~# ls /dev/ ac0 mem mtd4ro mtdblock3 ptmx random ttyACM2 ttyUSB3 acl0 mtd0 mtd5 mtdblock4 pts rdm0 ttyACM3 ttyUSB4 cls0 mtd0ro mtd5ro mtdblock5 ptyp0 scd0 ttyACM4 ttyUSB5 console mtd1 mtd6 mtdblock6 ptyp1 sg0 ttyACM5 ttyp0 flash0 mtd1ro mtd6ro mtdblock7 ram0 slic ttyS0 ttyp1 gpio mtd2 mtd7 mtr0 ram1 spiS0 ttyS1 urandom hwnat0 mtd2ro mtd7ro null ram2 sr0 ttyS2 vdsp i2cM0 mtd3 mtdblock0 nvram ram3 swnat0 ttyUSB0 video0 i2s0 mtd3ro mtdblock1 pcm0 ram4 ttyACM0 ttyUSB1 watchdog log mtd4 mtdblock2 ppp ram5 ttyACM1 ttyUSB2 admin@XTDPLINK-B000B0:~# uname -a Linux XTDPLINK-B000B0 2.6.36 #5 Wed Jun 17 06:05:46 GMT 2015 mips GNU/Linux admin@XTDPLINK-B000B0:~#
I don't know if it's relevant, please tell me if you want to know more commands or chip numbers. I was also wondering if there was a way to take an image of the original software before modifying it, and what is the best way to flash it, the utility on the Chinese webpage or some tftp/telnet command, or a TTL to USB. Please let me know, thanks!