OpenWrt on WZR-HP-G300NH は鬼門

既に入手済みだった、Buffalo WZR-HP-G300NHをOpenWrt化を試みて。
見事に嵌りました。
OpenWrtのバージョンは、10.03。
利用イメージは、openwrt-ar71xx-wzr-hp-g300nh-squashfs-sysupgrade.binです。

DD-Wrtではなく、OpenWrtを選んだのは、実はBroadcomチップ以外のVLAN対応が進んでいるという所だった訳ですが。
そんな事以前のところで躓きまくりです。
OpenWrt化されているが、通信できない罠がありました。
LEDステータスの状況から、書き換えミスによるFirmware異常では無い為、怪しいとは思ったのですが。。。

今回餌食になってもらったのは、WZR-HP-G300NHで。Rev:V1となっているモノはWZR-HP-G300NH初期型とはチップが異なる模様。。。どちらかといえばG301NHに近い模様。
DD-Wrtは、問題なく動くんですけどね。WZR-HP-G300NHのFirmwareで。


で、通信できないので、RS232Cの接続をして確かめました。
思ったとおり、OpenWrtは正常に起動しており、NICの認識に問題がありました。
起動時のeth0認識箇所で、ミスってますね。

Atheros AR71xx SPI Controller driver version 0.2.4
Realtek RTL8366S ethernet switch driver version 0.2.1
rtl8366s rtl8366s: using GPIO pins 19 (SDA) and 20 (SCK)
rtl8366s rtl8366s: unknown chip id (0000)
eth0: Atheros AG71xx at 0xb9000000, irq 4
eth0: unable to find MII bus on device 'rtl8366s'
eth0: Atheros AG71xx at 0xba000000, irq 5
eth0: unable to find MII bus on device 'rtl8366s'
Atheros AR71xx hardware watchdog driver version 0.1.0

RS232Cで通信中のお姿。
パキッと少しばかり折ってしまったのは内緒。（ルーター、APの切替スイッチだから気にしない。。。）


イロイロとFirmwareの復旧やらを繰り返してみつけました。OpenWrtでも通信できるのは、WZR-HP-G301NHを書き込めばイイ模様。
今のところ問題は見られないが、WZR-HP-G300NHとWZR-HP-G301NHはハード的にはほぼ同じなので、大丈夫だとはおもわれる。
できれば、DD-Wrtの様に、WZR-HP-G300NHのFirmwareで対応されれば良いのだが


通信できなくなったWZR-HP-G300NHの復旧手順については、別途記載する予定です。
バイナリエディタでイメージ弄ったり、面倒なので手順整理してからにします。
しかし、どう見てもWZR-HP-G300NHです。WZR-HP-G301NHではありません。


OpenWrt起動失敗時のログ全体。

BUFFALO U-BOOT Ver 1.06
AP83--539 (ar9100) U-boot 0.0.12
64 MB
Memory Test (address line)
Memory Test start(0x00000000) end(0x04000000) size(67108864)
Data line test start:0x00000000 pattern 0x00000001 0x00000003 0x00000007 0x0000000F 0x00000005 0x00000015 0x00000055 0xAAAAAAAA 
Address line test start:0x00000000 len:0x4000000 pattern 0xAAAAAAAA 0x55555555  
Fill test patnum:5 
fill Pattern 5555AAAA  Writing...             Reading...
fill Pattern AAAA5555  Writing...             Reading...
fill Pattern 0000FFFF  Writing...             Reading...
fill Pattern FFFF0000  Writing...             Reading...
fill Pattern AAAAAAAA  Writing...             Reading...
Top of RAM usable for U-Boot at: 84000000
Reserving 275k for U-Boot at: 83fb8000
Reserving 256k for malloc() at: 83f78000
Reserving 44 Bytes for Board Info at: 83f77fd4
Reserving 36 Bytes for Global Data at: 83f77fb0
Reserving 128k for boot params() at: 83f57fb0
Stack Pointer at: 83f57f98
Now running in RAM - U-Boot at: 83fb8000
Dev ID2:2222
Dev ID3:2201
Name: AMD-SPANSION Flash id: 0x1227E, Size: 33554432 bytes.
Flash: 32 MB
In:    serial
Out:   serial
Err:   serial
Memory Test
uboot use  83F57FB0 - 84000000
Memory Test start(80000000) end(83F00000) size(03F00000)
Pattern 55555555  Writing...            Reading...Pattern AAAAAAAA  Writing...            Reading...Pattern 00000000  Writing...            Reading...
Memory Test OK
### buf_ver=[1.06] U-Boot Ver.=[1.06]
### build_date(env)=[Sep  2 2009 - 08:20:59] build_date(bin)=[Sep  2 2009 - 08:20:59]
ag7100_enet_initialize...
: cfg1 0xf cfg2 0x7114
RTL8366 series driver, reading model-id...
  ID:0x5937, REV:0x0
rtl8366rb_phy_setup  ethUnit=0
Realtek 8366RB switch ID:0x5937 REV:0x3
Realtek Greeen Ethernet Setup
eth0: 02:aa:bb:cc:dd:1a
eth0 up
: cfg1 0x7 cfg2 0x7114
RTL8366 series driver, reading model-id...
eth1: 02:aa:bb:cc:dd:1a
eth1 up
eth0  02:AA:BB:CC:DD:1A
, eth1  02:AA:BB:CC:DD:1A

Trying eth0
eth0 is duplex
eth0 link down
FAIL
Trying eth1
eth1 link down
FAIL

tftp server(receive) go, waiting:4[sec]
Trying eth1
eth1 link down
FAIL
Trying eth0
eth0 is duplex
eth0 link down
FAIL
Load address: 0x81f00000

TftpServer Timeout;
Trying eth0
eth0 is duplex
eth0 link down
FAIL
Trying eth1
eth1 link down
FAIL
no file was loaded.
## Booting image at be060000 ...
   Image Name:   MIPS OpenWrt Linux-2.6.32.10
   Created:      2010-04-06  13:03:43 UTC
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    883587 Bytes = 862.9 kB
   Load Address: 80060000
   Entry Point:  80060000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 80060000) ...
## Giving linux memsize in bytes, 67108864

Starting kernel ...

Linux version 2.6.32.10 (openwrt@wrt1.marcant.net) (gcc version 4.3.3 (GCC) ) #20 Tue Apr 6 15:01:26 CEST 2010
bootconsole [early0] enabled
CPU revision is: 00019374 (MIPS 24Kc)
Atheros AR9132 rev 2, CPU:400.000 MHz, AHB:200.000 MHz, DDR:400.000 MHz
Determined physical RAM map:
 memory: 04000000 @ 00000000 (usable)
Initrd not found or empty - disabling initrd
Zone PFN ranges:
  Normal   0x00000000 -> 0x00004000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00004000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 board=WZR-HP-G300NH
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Writing ErrCtl register=00000000
Readback ErrCtl register=00000000
Memory: 61748k/65536k available (2101k kernel code, 3716k reserved, 397k data, 152k init, 0k highmem)
SLUB: Genslabs=7, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:56
Calibrating delay loop... 266.24 BogoMIPS (lpj=1331200)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
MIPS: machine is Buffalo WZR-HP-G300NH
bio: create slab  at 0
Switching to clocksource MIPS
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
squashfs: version 4.0 (2009/01/31) Phillip Lougher
Registering mini_fo version $Id$
JFFS2 version 2.2. (NAND) (SUMMARY)  c 2001-2006 Red Hat, Inc.
yaffs Mar 28 2010 17:53:41 Installing. 
msgmni has been set to 120
io scheduler noop registered
io scheduler deadline registered (default)
Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
ar91xx-flash ar91xx-flash: 02000000 at 1e000000
ar91xx-flash: Found 1 x16 devices at 0x0 in 16-bit bank
 Amd/Fujitsu Extended Query Table at 0x0040
ar91xx-flash: CFI does not contain boot bank location. Assuming top.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
ar91xx-flash ar91xx-flash: using static partition mapping
Creating 7 MTD partitions on "ar91xx-flash":
0x000000000000-0x000000040000 : "u-boot"
0x000000040000-0x000000060000 : "u-boot-env"
0x000000060000-0x000000160000 : "kernel"
0x000000160000-0x000001fc0000 : "rootfs"
mtd: partition "rootfs" set to be root filesystem
mtd: partition "rootfs_data" created automatically, ofs=2A0000, len=1D20000 
0x0000002a0000-0x000001fc0000 : "rootfs_data"
0x000001fc0000-0x000001fe0000 : "user_property"
0x000001fe0000-0x000002000000 : "art"
0x000000060000-0x000001fc0000 : "firmware"
Atheros AR71xx SPI Controller driver version 0.2.4
Realtek RTL8366S ethernet switch driver version 0.2.1
rtl8366s rtl8366s: using GPIO pins 19 (SDA) and 20 (SCK)
rtl8366s rtl8366s: unknown chip id (0000)
eth0: Atheros AG71xx at 0xb9000000, irq 4
eth0: unable to find MII bus on device 'rtl8366s'
eth0: Atheros AG71xx at 0xba000000, irq 5
eth0: unable to find MII bus on device 'rtl8366s'
Atheros AR71xx hardware watchdog driver version 0.1.0
TCP westwood registered
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear 
All bugs added by David S. Miller 
VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
Freeing unused kernel memory: 152k freed
Please be patient, while OpenWrt loads ...
gpio-buttons driver version 0.1.2
input: gpio-buttons as /devices/platform/gpio-buttons/input/input0
Button Hotplug driver version 0.3.1
- preinit -
Registered led device: wzr-hp-g300nh:orange:security
Registered led device: wzr-hp-g300nh:green:wireless
Registered led device: wzr-hp-g300nh:green:router
Registered led device: wzr-hp-g300nh:red:diag
Registered led device: wzr-hp-g300nh:blue:usb
Press the [f] key and hit [enter] to enter failsafe mode
- regular preinit -
switching to jffs2
mini_fo: using base directory: /
mini_fo: using storage directory: /overlay
- init -

Please press Enter to activate this console. PPP generic driver version 2.4.2
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 24
nf_conntrack version 0.5.0 (968 buckets, 3872 max)
CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or
sysctl net.netfilter.nf_conntrack_acct=1 to enable it.



BusyBox v1.15.3 (2010-04-06 03:14:11 CEST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 Backfire (10.03, r20728) --------------------------
  * 1/3 shot Kahlua    In a shot glass, layer Kahlua 
  * 1/3 shot Bailey's  on the bottom, then Bailey's, 
  * 1/3 shot Vodka     then Vodka.
 ---------------------------------------------------
root@OpenWrt:/# 
root@OpenWrt:/# ifconfig -a
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@OpenWrt:/# 
root@OpenWrt:/# lsmod
Module                  Size  Used by    Not tainted
nf_nat_tftp              432  0 
nf_conntrack_tftp       2400  1 nf_nat_tftp
nf_nat_irc               816  0 
nf_conntrack_irc        2512  1 nf_nat_irc
nf_nat_ftp              1328  0 
nf_conntrack_ftp        4640  1 nf_nat_ftp
ipt_MASQUERADE           992  0 
iptable_nat             2768  1 
nf_nat                 10912  5 nf_nat_tftp,nf_nat_irc,nf_nat_ftp,ipt_MASQUERADE,iptable_nat
xt_NOTRACK               544  0 
iptable_raw              656  1 
xt_state                 768  3 
nf_conntrack_ipv4       7920  6 iptable_nat,nf_nat
nf_defrag_ipv4           624  1 nf_conntrack_ipv4
nf_conntrack           38848 12 nf_nat_tftp,nf_conntrack_tftp,nf_nat_irc,nf_conntrack_irc,nf_nat_ftp,nf_conntrack_ftp,ipt_MASQUERADE,iptable_nat,nf_nat,xt_NOTRACK,xt_state,nf_conntrack_ipv4
pppoe                   8304  0 
pppox                   1216  1 pppoe
ipt_REJECT              1680  2 
xt_TCPMSS               2560  0 
ipt_LOG                 4176  0 
xt_comment               464  0 
xt_multiport            1792  0 
xt_mac                   576  0 
xt_limit                1008  1 
iptable_mangle           992  0 
iptable_filter           768  1 
ip_tables               8464  4 iptable_nat,iptable_raw,iptable_mangle,iptable_filter
xt_tcpudp               1760  3 
x_tables                9296 13 ipt_MASQUERADE,iptable_nat,xt_NOTRACK,xt_state,ipt_REJECT,xt_TCPMSS,ipt_LOG,xt_comment,xt_multiport,xt_mac,xt_limit,ip_tables,xt_tcpudp
ppp_async               6400  0 
ppp_generic            18848  3 pppoe,pppox,ppp_async
slhc                    4160  1 ppp_generic
crc_ccitt                976  1 ppp_async
leds_gpio               1456  0 
button_hotplug          2560  0 
gpio_buttons            1968  0 
input_polldev           1360  1 gpio_buttons
input_core             16896  4 button_hotplug,gpio_buttons,input_polldev
root@OpenWrt:/#