I've flashed wdr3320 with wdr3500 openwrt.Boot hangs.
U-Boot 1.1.4 (Mar 19 2013 - 14:42:12)
U-Boot DB120
Wasp 1.3
DRAM: 64 MB
Flash Manuf Id 0x1, DeviceId0 0x2, DeviceId1 0x15
Flash: 4 MB
Using default environment
In: serial
Out: serial
Err: serial
Net: ag934x_enet_initialize...
No valid address in Flash. Using fixed address
No valid address in Flash. Using fixed address
wasp reset mask:c03300
WASP ----> S27 PHY
GMAC: cfg1 0x80000000 cfg2 0x7114
eth0: ba:be:fa:ce:08:41
s27 reg init
athrs27_phy_setup ATHR_PHY_CONTROL 4 :0x1000
athrs27_phy_setup ATHR_PHY_SPEC_STAUS 4 :0x10
eth0 up
WASP ----> S27 PHY
GMAC: cfg1 0xf cfg2 0x7214
eth1: ba:be:fa:ce:08:41
s27 reg init lan
ATHRS27: resetting s27
ATHRS27: s27 reset done
athrs27_phy_setup ATHR_PHY_CONTROL 0 :0x1000
athrs27_phy_setup ATHR_PHY_SPEC_STAUS 0 :0x10
athrs27_phy_setup ATHR_PHY_CONTROL 1 :0x1000
athrs27_phy_setup ATHR_PHY_SPEC_STAUS 1 :0x10
athrs27_phy_setup ATHR_PHY_CONTROL 2 :0x1000
athrs27_phy_setup ATHR_PHY_SPEC_STAUS 2 :0x10
athrs27_phy_setup ATHR_PHY_CONTROL 3 :0x1000
athrs27_phy_setup ATHR_PHY_SPEC_STAUS 3 :0x10
eth1 up
eth0, eth1
Setting 0xb8116290 to 0x21422d0f
Autobooting in 1 seconds
## Booting image at 9f020000 ...
Uncompressing Kernel Image ... OK
Starting kernel ...
[ 0.000000] Linux version 3.10.24 (axishero@ubuntu) (gcc version 4.6.4 (OpenWrt/Linaro GCC 4.6-2013.05 r39153) ) #12 Fri Dec 27 17:07:43 CST 2013
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU revision is: 0001974c (MIPS 74Kc)
[ 0.000000] SoC: Atheros AR9344 rev 3
[ 0.000000] Clocks: CPU:560.000MHz, DDR:450.000MHz, AHB:225.000MHz, Ref:40.000MHz
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 04000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00000000-0x03ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00000000-0x03ffffff]
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
[ 0.000000] Kernel command line: board=TL-WDR3500 console=ttyS0,115200 rootfstype=squashfs,jffs2 noinitrd
[ 0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] Memory: 61272k/65536k available (2199k kernel code, 4264k reserved, 593k data, 276k init, 0k highmem)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:51
[ 0.000000] Calibrating delay loop... 278.93 BogoMIPS (lpj=1394688)
[ 0.070000] pid_max: default: 32768 minimum: 301
[ 0.070000] Mount-cache hash table entries: 512
[ 0.080000] NET: Registered protocol family 16
[ 0.080000] MIPS: machine is TP-LINK TL-WDR3500
[ 0.090000] registering PCI controller with io_map_base unset
[ 0.510000] bio: create slab <bio-0> at 0
[ 0.510000] PCI host bridge to bus 0000:00
[ 0.520000] pci_bus 0000:00: root bus resource [mem 0x10000000-0x13ffffff]
[ 0.520000] pci_bus 0000:00: root bus resource [io 0x0000]
[ 0.530000] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[ 0.530000] pci 0000:00:00.0: fixup device configuration
[ 0.540000] Kernel bug detected[#1]:
[ 0.540000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.10.24 #12
[ 0.540000] task: 83828000 ti: 8382c000 task.ti: 8382c000
[ 0.540000] $ 0 : 00000000 0000006e 00000000 00000003
[ 0.540000] $ 4 : 8385f200 00000000 00000010 10000000
[ 0.540000] $ 8 : 8384fb2c 75702064 65766963 6520636f
[ 0.540000] $12 : 56494345 802d9438 00000000 3d2b7063
[ 0.540000] $16 : 83821800 80306870 83821800 0000ffff
[ 0.540000] $20 : 80360000 ffffffff 00000021 8031b210
[ 0.540000] $24 : 00000003 80069d4c
[ 0.540000] $28 : 8382c000 8382dce0 802fc854 8006ac88
[ 0.540000] Hi : 000014b4
[ 0.540000] Lo : 000052d0
[ 0.540000] epc : 8006ad24 ath9k_pci_fixup+0x16c/0x250
[ 0.540000] Not tainted
[ 0.540000] ra : 8006ac88 ath9k_pci_fixup+0xd0/0x250
[ 0.540000] Status: 1100c403 KERNEL EXL IE
[ 0.540000] Cause : 00800024
[ 0.540000] PrId : 0001974c (MIPS 74Kc)
[ 0.540000] Modules linked in:
[ 0.540000] Process swapper (pid: 1, threadinfo=8382c000, task=83828000, tls=00000000)
[ 0.540000] Stack : 802fc854 83866b80 00000000 00000004 14010001 80191708 10000004 83821868
83821800 802e5758 802e5778 83821800 0000ffff 8019ac4c 14010001 83821800
fffffffb 8018f924 fffffffb 801b2618 8382dd38 83821868 83821800 fffffffb
00000000 80360000 80360000 8018fab0 00000000 8018edcc 00000000 0000168c
0000002e 00000000 00028000 00000000 8300f200 02800001 00000000 8385f200
...
[ 0.540000] Call Trace:
[ 0.540000] [<8006ad24>] ath9k_pci_fixup+0x16c/0x250
[ 0.540000] [<8019ac4c>] pci_fixup_device+0x150/0x1ac
[ 0.540000] [<8018fab0>] pci_setup_device+0x170/0x3f0
[ 0.540000] [<80065098>] pci_scan_single_device+0x88/0xc8
[ 0.540000] [<8018fee8>] pci_scan_slot+0x74/0x124
[ 0.540000] [<801909ec>] pci_scan_child_bus+0x40/0xe8
[ 0.540000] [<80190c98>] pci_scan_root_bus+0x88/0xbc
[ 0.540000] [<801ea514>] pcibios_scanbus+0xa4/0x154
[ 0.540000] [<80334174>] pcibios_init+0x50/0x8c
[ 0.540000] [<80068c4c>] do_one_initcall+0xec/0x194
[ 0.540000] [<8031ba60>] kernel_init_freeable+0x138/0x200
[ 0.540000] [<80064ac0>] kernel_init+0x10/0x10c
[ 0.540000] [<80060870>] ret_from_kernel_thread+0x10/0x18
[ 0.540000]
[ 0.540000]
Code: a7a70010 0801ab52 3c13b000 <000c000d> 96230004 96240002 00031c00 00641825 ac430000
[ 0.550000] ---[ end trace 230d00302abec782 ]---
[ 0.550000] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[ 0.550000]