OpenWrt now support ZTE F660 V3.0 and HGG420n

winnt5 · July 11, 2021, 6:57am

I have worked on this project for a long time.
This project is based on Leitec's openwrt for MI424WR-REVI.

This project is for ZTE F420/F460/F620/F660 V3.0 or HQW HGG420N with a Marvell 88f6560 SoC.

Not working:
voice chip/port(impossible to work)
G/EPON port(impossible to work)

Working:
four ETH ports
USB
GPIO LEDs
GPIO buttons
WLAN chip
(for F420/F620 v3, they don't have USB or WLAN chip)
I'm using it as a NAS server.
You must compile it by yourself, no binaries are offered.
Project link: https://github.com/msdos03/openwrt-avanta

To boot openwrt, you need to flash the uboot image in there.
For F420/F620/F460/F660 v3: https://github.com/msdos03/avanta-uboot-f660/releases
For HQW HGG420N: https://github.com/msdos03/avanta-uboot-hgg420n/releases

Follow these steps to flash uboot for them
Method1:

Prepare a UART to USB cable and log into the linux console of your box. Make sure you can do this, or you can only try other methods.
Use tftp or usb disk to put the uboot image to your box.
Use "dd if='path to uboot image' of=/dev/mtdblock0" to flash uboot image.

Method2:

Prepare a UART to USB cable and enter uboot console. Make sure you can enter uboot console, or you can only try other methods.
set your PC ip address to 192.168.1.100, and set router address to 192.168.1.1. Then set up a tftp server, put the uboot image in the server directory.
Connect the box to your PC with network cable. Use "tftp 'uboot image file name'" to download it to ram. Use "nand erase" to erase the whole flash and use "nand write 0x2000000 0x0 0x100000" to write uboot image to the head of flash.

Method3:
This method can be used when your box is bricked.

You need a linux system(I use ubuntu 20.04). It can be a virtual machine. Old versions are not suggested, they may not work with this method.
connect your USB to UART cable to your linux system.
Make sure you are root user.
Install u-boot-tools software package(we need kwboot in it)
Change to the directory of uboot image, and run "kwboot -t -p -B115200 /dev/ttyUSB0 -b 'uboot file name'". Then, power on your box and wait until uboot starts. Remember to enter uboot console.
Follow step 2,3 in method 2 to flash uboot to nand.

Now you have the cuatom uboot on your box.

You should backup your whole NAND before flashing openwrt. You can plug a usb disk and use cat command to have a backup.

Q: How to flash openwrt?
A: You need to compile openwrt yourself and get the factory firmware.
1, Put it into the tftp server and download it to RAM just like before.
2, Use 'nand erase 0x100000' to erase the stock firmware(I believe you have erased it when you are flashing uboot)
3, Use 'nand write 0x2000000 0x100000 0xNNNNN' (replace NNNNN with the openwrt factory firmware size)
4, Reboot and enjoy!

Update:
The kernel size have exeeded 3MB since 6.6, openwrt with kernel older than that can't sysupgrade to newer versions. We need to change bootcmd variable in u-boot to "nand read 0x2000000 0x100000 0x400000; bootm" and saveenv. Then flash the new factory firmware from u-boot. For those who are flashing openwrt for the first time, your u-boot variable doesn't need change because I have published a new release of u-boot which contains the latest variables.

If you have actiontec mi424wr-revi which also have 88f6560 and want to run latest openwrt on it, help me with it!

tmomas · September 4, 2021, 9:08am

You mean this one? https://openwrt.org/toh/zte/zxa10f660

winnt5 · September 4, 2021, 9:26am

This device wiki contains two different versions of F660, mine just support the version with marvell 88f6560 SoC, which is called v3.0. F460 also have v3.0 and this openwrt also support that. Their only difference is that F460 v3.0 is an EPON modem, F660 v3.0 is an GPON modem.

My openwrt is recommended to use with my u-boot.

tmomas · September 4, 2021, 9:31am

Where exactly do you see more than one version?

winnt5 · September 4, 2021, 10:19am

At the cpu info section and Loaded modules list section of that page, some broadcom SoC information are mentioned. They are not from v3.0.

winnt5 · September 5, 2021, 7:23am

This device page is out of time now. How about updating it.

frollic · September 5, 2021, 8:24am

Good thinking, do it.

driver53 · November 3, 2021, 3:15pm

hi
interesting project, how do you enter uboot console?
thanks

winnt5 · November 4, 2021, 2:19pm

first, connect the UART port

Then, open putty or other tty programs on your computer and choose your serial port and select 115200 baudurate.
After that, power on your modem and keep pressing 'enter'.
Just like that.

Now, I had ported the latest openwrt snapshot to this modem so the kernel size is changed to 3M. Don't forget to change 'bootcmd' after flashing U-Boot.

BENDER_35 · June 11, 2022, 4:42pm

hello

interesting project, one question, I have an F660 from November 2014, so my question is the following, how do I know what the F660 3.0 is? because I am about to take a risk and try to modify this router that I have without use (it is from the Spanish company jazztel-orange)

PD: sorry but i'm using for the google translate

winnt5 · June 12, 2022, 12:56am

Look at the picture above, if your F660's curcuit board is the same, you can sure that it is F660 v3. Don't worry if your curcuit board have more chips and ports. The picture above is an F420 v3, it doesn't have WLAN chip or USB port.

jahedcuet · July 18, 2022, 7:19am

Here is latest available firmware for ZTE F660
F660_V7.0.10P2N27_UPGRADE_BOOTLDR.bin

winnt5 · July 18, 2022, 8:58am

That is not a useful thing in this project.

catzy007 · June 24, 2023, 7:47am

Hi! thanks for help in 128mb nand and sorry for reviving an old topics. I'm currently trying to boot openwrt and get VFS: Cannot open root device with ubi0 error: validate_ec_hdr: bad VID header offset 256, expected 512. Here is my bootcmd and bootargs am i missing something or get it all wrong? Thanks!

Marvell>> set bootargs 'ubi.mtd=3 rootfstype=ubifs root=/dev/mtdblock3'
Marvell>> set bootcmd 'nand read 2000000 100000 400000;bootm'
Marvell>> boot

Here is the boot log

NAND read: device 0 offset 0x100000, size 0x400000
 4194304 bytes read: OK
## Booting kernel from Legacy Image at 02000000 ...
   Image Name:   ARM OpenWrt Linux-5.15.114
   Created:      2023-06-03   8:27:00 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2808587 Bytes =  2.7 MB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.15.114 (catzy@catzy-550-red-arc) (arm-openwrt-linux-muslgnueabi-gcc (OpenWrt GCC 12.3.0 r23339-5cb870bdd6) 12.3.0, GNU ld (GNU Binutils) 2.40.0) #0 Sat Jun 3 08:27:00 2023
[    0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=0005397f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: ZTE F460 F660
[    0.000000] Memory policy: Data cache writeback
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 32480
[    0.000000] Kernel command line: ubi.mtd=3 rootfstype=ubifs root=/dev/mtdblock3
[    0.000000] Unknown kernel command line parameters "mangled_fs=ubifs mangled_rootblock=3", will be passed to user space.
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 119708K/131072K available (5927K kernel code, 576K rwdata, 1520K rodata, 1024K init, 209K bss, 11364K reserved, 0K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] clocksource: orion_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302233 ns
[    0.000001] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 10737418237ns
[    0.000043] Switching to timer-based delay loop, resolution 5ns
[    0.000201] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=2000000)
[    0.000236] pid_max: default: 32768 minimum: 301
[    0.001556] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.001594] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.003535] CPU: Testing write buffer coherency: ok
[    0.005100] Setting up static identity map for 0x100000 - 0x10003c
[    0.005350] mvebu-soc-id: MVEBU SoC ID=0x6560, Rev=0x2
[    0.009424] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.009466] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.009729] pinctrl core: initialized pinctrl subsystem
[    0.011669] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.012102] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.013350] thermal_sys: Registered thermal governor 'step_wise'
[    0.013438] cpuidle: using governor ladder
[    0.013780] Feroceon L2: Enabling L2
[    0.013825] Feroceon L2: Cache support initialised.
[    0.019552] No ATAGs?
[    0.027576] SCSI subsystem initialized
[    0.028075] usbcore: registered new interface driver usbfs
[    0.028136] usbcore: registered new interface driver hub
[    0.028188] usbcore: registered new device driver usb
[    0.029485] clocksource: Switched to clocksource orion_clocksource
[    0.030983] NET: Registered PF_INET protocol family
[    0.031180] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.031782] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.031828] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.031852] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.031883] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.031912] TCP: Hash tables configured (established 1024 bind 1024)
[    0.032021] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.032057] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.032389] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.032439] PCI: CLS 0 bytes, default 32
[    0.034540] workingset: timestamp_bits=14 max_order=15 bucket_order=1
[    0.040919] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.040948] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.044839] armada-370-pinctrl f1018000.pinctrl: registered pinctrl driver
[    0.046709] mvebu-pcie mbus@f1000000:pcie@82000000: host bridge /mbus@f1000000/pcie@82000000 ranges:
[    0.046768] mvebu-pcie mbus@f1000000:pcie@82000000:      MEM 0x00f1040000..0x00f1041fff -> 0x0000040000
[    0.046807] mvebu-pcie mbus@f1000000:pcie@82000000:      MEM 0x00f1044000..0x00f1045fff -> 0x0000044000
[    0.046843] mvebu-pcie mbus@f1000000:pcie@82000000:      MEM 0x00f1080000..0x00f1081fff -> 0x0000080000
[    0.046877] mvebu-pcie mbus@f1000000:pcie@82000000:      MEM 0xffffffffffffffff..0x00fffffffe -> 0x0100000000
[    0.046911] mvebu-pcie mbus@f1000000:pcie@82000000:       IO 0xffffffffffffffff..0x00fffffffe -> 0x0100000000
[    0.046944] mvebu-pcie mbus@f1000000:pcie@82000000:      MEM 0xffffffffffffffff..0x00fffffffe -> 0x0200000000
[    0.046970] mvebu-pcie mbus@f1000000:pcie@82000000:       IO 0xffffffffffffffff..0x00fffffffe -> 0x0200000000
[    0.047271] mvebu-pcie mbus@f1000000:pcie@82000000: PCI host bridge to bus 0000:00
[    0.047294] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.047317] pci_bus 0000:00: root bus resource [mem 0xf1040000-0xf1041fff] (bus address [0x00040000-0x00041fff])
[    0.047339] pci_bus 0000:00: root bus resource [mem 0xf1044000-0xf1045fff] (bus address [0x00044000-0x00045fff])
[    0.047360] pci_bus 0000:00: root bus resource [mem 0xf1080000-0xf1081fff] (bus address [0x00080000-0x00081fff])
[    0.047379] pci_bus 0000:00: root bus resource [mem 0xe0000000-0xefffffff]
[    0.047396] pci_bus 0000:00: root bus resource [io  0x1000-0xeffff]
[    0.047523] pci 0000:00:01.0: [11ab:6560] type 01 class 0x060400
[    0.047832] pci 0000:00:02.0: [11ab:6500] type 01 class 0x060400
[    0.048854] PCI: bus0: Fast back to back transfers disabled
[    0.048874] pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    0.048898] pci 0000:00:02.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    0.049955] PCI: bus1: Fast back to back transfers enabled
[    0.049976] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    0.050184] pci 0000:02:00.0: [10ec:8191] type 00 class 0x028000
[    0.050226] pci 0000:02:00.0: reg 0x10: [io  0xf2000000-0xf20000ff]
[    0.050269] pci 0000:02:00.0: reg 0x18: [mem 0x44000000-0x44003fff 64bit]
[    0.050398] pci 0000:02:00.0: supports D1 D2
[    0.050414] pci 0000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.051446] PCI: bus2: Fast back to back transfers disabled
[    0.051465] pci_bus 0000:02: busn_res: [bus 02-ff] end is updated to 02
[    0.051690] pci 0000:00:02.0: BAR 8: assigned [mem 0xe0000000-0xe00fffff]
[    0.051716] pci 0000:00:02.0: BAR 7: assigned [io  0x10000-0x10fff]
[    0.051736] pci 0000:00:01.0: PCI bridge to [bus 01]
[    0.051763] pci 0000:02:00.0: BAR 2: assigned [mem 0xe0000000-0xe0003fff 64bit]
[    0.051794] pci 0000:02:00.0: BAR 0: assigned [io  0x10000-0x100ff]
[    0.051817] pci 0000:00:02.0: PCI bridge to [bus 02]
[    0.051834] pci 0000:00:02.0:   bridge window [io  0x10000-0x10fff]
[    0.051857] pci 0000:00:02.0:   bridge window [mem 0xe0000000-0xe00fffff]
[    0.052365] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[    0.053085] printk: console [ttyS0] disabled
[    0.053188] f1012000.serial: ttyS0 at MMIO 0xf1012000 (irq = 30, base_baud = 12500000) is a 16550A
[    0.755994] printk: console [ttyS0] enabled
[    0.761339] nand: device found, Manufacturer ID: 0x01, Chip ID: 0xf1
[    0.767738] nand: AMD/Spansion S34ML01G1
[    0.771711] nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
[    0.779345] Scanning device for bad blocks
[    0.836983] Bad eraseblock 491 at 0x000003d60000
[    0.899593] 4 fixed-partitions partitions found on MTD device orion_nand
[    0.906338] Creating 4 MTD partitions on "orion_nand":
[    0.911520] 0x000000000000-0x0000000c0000 : "u-boot"
[    0.920528] 0x0000000c0000-0x000000100000 : "uboot_env"
[    0.926443] 0x000000100000-0x000000400000 : "kernel"
[    0.933536] 0x000000400000-0x000002000000 : "ubi"
[    0.946074] mv88e6085 f1072004.mdio-bus-mii:08: switch 0x440 detected: Marvell 88E6351, revision 2
[    1.150160] mvneta f1070000.ethernet eth0: Using hardware mac address 00:50:43:00:02:02
[    1.158486] i2c_dev: i2c /dev entries driver
[    1.163576] orion_wdt: Initial timeout 21 sec
[    1.170839] NET: Registered PF_INET6 protocol family
[    1.190281] Segment Routing with IPv6
[    1.194046] In-situ OAM (IOAM) with IPv6
[    1.198081] NET: Registered PF_PACKET protocol family
[    1.203398] 8021q: 802.1Q VLAN Support v1.8
[    1.212933] mv88e6085 f1072004.mdio-bus-mii:08: switch 0x440 detected: Marvell 88E6351, revision 2
[    2.383950] mv88e6085 f1072004.mdio-bus-mii:08: configuring for fixed/ link mode
[    2.400551] mv88e6085 f1072004.mdio-bus-mii:08: Link is Up - 1Gbps/Full - flow control off
[    2.499568] mv88e6085 f1072004.mdio-bus-mii:08 internet (uninitialized): PHY [mv88e6xxx-1:00] driver [Marvell 88E1540] (irq=45)
[    2.531714] mv88e6085 f1072004.mdio-bus-mii:08 ethernet1 (uninitialized): PHY [mv88e6xxx-1:01] driver [Marvell 88E3016] (irq=46)
[    2.558410] mv88e6085 f1072004.mdio-bus-mii:08 ethernet2 (uninitialized): PHY [mv88e6xxx-1:02] driver [Marvell 88E3016] (irq=47)
[    2.587471] mv88e6085 f1072004.mdio-bus-mii:08 ethernet3 (uninitialized): PHY [mv88e6xxx-1:03] driver [Marvell 88E3016] (irq=48)
[    2.606088] DSA: tree 0 setup
[    2.609409] ubi0: attaching mtd3
[    2.612999] ubi0 error: validate_ec_hdr: bad VID header offset 256, expected 512
[    2.620487] ubi0 error: validate_ec_hdr: bad EC header
[    2.625663] Erase counter header dump:
[    2.629430] 	magic          0x55424923
[    2.633212] 	version        1
[    2.636198] 	ec             0
[    2.639182] 	vid_hdr_offset 256
[    2.642350] 	data_offset    512
[    2.645510] 	image_seq      1685780820
[    2.649279] 	hdr_crc        0xaf8992df
[    2.653058] erase counter header hexdump:
[    2.657121] CPU: 0 PID: 1 Comm: swapper Not tainted 5.15.114 #0
[    2.663089] Hardware name: Marvell Kirkwood (Flattened Device Tree)
[    2.669397] [<c01074e0>] (unwind_backtrace) from [<c0104650>] (show_stack+0x10/0x14)
[    2.677221] [<c0104650>] (show_stack) from [<c04a2384>] (validate_ec_hdr+0x11c/0x170)
[    2.685126] [<c04a2384>] (validate_ec_hdr) from [<c04a2fa4>] (ubi_io_read_ec_hdr+0x1b4/0x254)
[    2.693724] [<c04a2fa4>] (ubi_io_read_ec_hdr) from [<c04a8054>] (ubi_attach+0x3e0/0x15f4)
[    2.701975] [<c04a8054>] (ubi_attach) from [<c049c960>] (ubi_attach_mtd_dev+0x430/0xae8)
[    2.710144] [<c049c960>] (ubi_attach_mtd_dev) from [<c0919428>] (ubi_init+0xfc/0x340)
[    2.718035] [<c0919428>] (ubi_init) from [<c0101568>] (do_one_initcall+0x50/0x1fc)
[    2.725672] [<c0101568>] (do_one_initcall) from [<c0901208>] (kernel_init_freeable+0x168/0x1f0)
[    2.734454] [<c0901208>] (kernel_init_freeable) from [<c06c41ec>] (kernel_init+0x10/0x120)
[    2.742792] [<c06c41ec>] (kernel_init) from [<c0100108>] (ret_from_fork+0x14/0x2c)
[    2.750425] Exception stack(0xc101dfb0 to 0xc101dff8)
[    2.755512] dfa0:                                     00000000 00000000 00000000 00000000
[    2.763749] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    2.771985] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    2.778636] ubi0 error: ubi_io_read_ec_hdr: validation failed for PEB 0
[    2.785311] ubi0 error: ubi_attach_mtd_dev: failed to attach mtd3, error -22
[    2.793407] UBI error: cannot attach mtd3
[    2.814664] random: crng init done
[    2.908685] /dev/root: Can't open blockdev
[    2.916820] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[    2.928230] Please append a correct "root=" boot option; here are the available partitions:
[    2.942276] 1f00             768 mtdblock0 
[    2.943365]  (driver?)
[    2.957611] 1f01             256 mtdblock1 
[    2.958698]  (driver?)
[    2.972953] 1f02            3072 mtdblock2 
[    2.974040]  (driver?)
[    2.988286] 1f03           28672 mtdblock3 
[    2.989373]  (driver?)
[    2.997618] irq 30: nobody cared (try booting with the "irqpoll" option)
[    2.997626] CPU: 0 PID: 1 Comm: swapper Not tainted 5.15.114 #0
[    2.997637] Hardware name: Marvell Kirkwood (Flattened Device Tree)
[    2.997646] [<c01074e0>] (unwind_backtrace) from [<c0104650>] (show_stack+0x10/0x14)
[    2.997677] [<c0104650>] (show_stack) from [<c0150fe4>] (__report_bad_irq+0x30/0xb4)
[    2.997705] [<c0150fe4>] (__report_bad_irq) from [<c0151368>] (note_interrupt+0x28c/0x2f0)
[    2.997726] [<c0151368>] (note_interrupt) from [<c014e69c>] (handle_irq_event+0x78/0x7c)
[    2.997746] [<c014e69c>] (handle_irq_event) from [<c0151c0c>] (handle_level_irq+0x9c/0x170)
[    2.997766] [<c0151c0c>] (handle_level_irq) from [<c014def8>] (handle_domain_irq+0x50/0x6c)
[    2.997785] [<c014def8>] (handle_domain_irq) from [<c03d0e84>] (orion_handle_irq+0x64/0x88)
[    2.997813] [<c03d0e84>] (orion_handle_irq) from [<c0100ab8>] (__irq_svc+0x58/0x6c)
[    2.997831] Exception stack(0xc101dca0 to 0xc101dce8)
[    2.997846] dca0: c101dd92 c101dccb 00000000 00000000 c101dd92 ffffffff 00000020 c101dd5c
[    2.997859] dcc0: 0000000a ffffffff c101dd8c 00000000 00000000 c101dcec 00000000 c03c85ec
[    2.997867] dce0: 60000013 ffffffff
[    2.997873] [<c0100ab8>] (__irq_svc) from [<c03c85ec>] (number+0x344/0x44c)
[    2.997891] [<c03c85ec>] (number) from [<00000002>] (0x2)
[    2.997907] handlers:
[    2.997909] [<f1c1fc63>] serial8250_interrupt
[    2.997936] Disabling IRQ #30
[    3.131274] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    3.139587] Rebooting in 1 seconds..

catzy007 · June 24, 2023, 9:16am

Got it to work by first flashing initramfs image, go to luci, then upgrade to squashfs-sysupgrade image.

winnt5 · June 24, 2023, 3:10pm

You shouldn't change bootargs or bootcmd for booting openwrt, bootargs is not needed. And I think your success is very strange. UBIFS is generated according to NAND page size and block size. So to let openwrt work fine, you need to modify these two files:

target/linux/avanta/image/Makefile
find zte_f460-f660 configs in this file and change these values:
PAGESIZE := 2048
SUBPAGESIZE := 512
BLOCKSIZE := 128k
IMAGE_SIZE := 130048k

target/linux/avanta/files/arch/arm/boot/dts/avanta-f460-f660.dts
find 'partition@400000 {' and change this value:
reg = <0x400000 0x7c00000>

frollic · June 24, 2023, 3:23pm

Flashing or booting ?
The initramfs isn't made for flashing.

catzy007 · June 24, 2023, 3:24pm

I ended up discarding bootargs and set bootcmd back to default 'nand read 2000000 100000 300000;bootm' then i install initramfs-uImage using nand erase nand write command followed by boot command. Then after luci accessable go to System > Backup / Flash Firmware > Flash Image... and select squashfs-sysupgrade image.

catzy007 · June 24, 2023, 3:30pm

I think the proper way should be boot into initramfs directly from tftp then performing sysupgrade but i haven't tried yet.

winnt5 · June 24, 2023, 3:36pm

Although it boots, you can't access the full 128M space, unless you make these changes