booted with openwrt initram image.

WHR-300HP2_openwrt_boot.txt

root@OpenWrt:/proc# dmesg
[    0.000000] Linux version 3.10.10 (kawai@localhost.localdomain) (gcc version 4.6.4 (OpenWrt/Linaro GCC 4.6-2012.12 r37894) ) #2 Wed Sep 4 18:46:11 JST 2013
[    0.000000] Board has DDR2
[    0.000000] Analog PMU set to hw control
[    0.000000] Digital PMU set to hw control
[    0.000000] SoC Type: Ralink MT7620A ver:2 eco:3
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU revision is: 00019650 (MIPS 24KEc)
[    0.000000] MIPS: machine is Buffalo WHR-300HP2
[    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] On node 0 totalpages: 16384
[    0.000000] free_area_init_node: node 0, pgdat 802d8990, node_mem_map 810039e0
[    0.000000]   Normal zone: 128 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 16384 pages, LIFO batch:3
[    0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: console=ttyS0,57600 rootfstype=squashfs,jffs2
[    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=00000008
[    0.000000] Readback ErrCtl register=00000008
[    0.000000] Memory: 60048k/65536k available (2409k kernel code, 5488k reserved, 576k data, 1684k init, 0k highmem)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:128
[    0.000000] CPU Clock: 580MHz
[    0.000000] systick: runing - mult: 214748, shift: 32
[    0.040000] Calibrating delay loop... 766.77 BogoMIPS (lpj=3833856)
[    0.040000] pid_max: default: 32768 minimum: 301
[    0.040000] Mount-cache hash table entries: 512
[    0.050000] NET: Registered protocol family 16
[    0.450000] PCIE0 no card, disable it(RST&CLK)
[    0.460000] bio: create slab <bio-0> at 0
[    0.460000] PCI host bridge to bus 0000:00
[    0.460000] pci_bus 0000:00: root bus resource [mem 0x20000000-0x2fffffff]
[    0.460000] pci_bus 0000:00: root bus resource [io  0x10160000-0x1016ffff]
[    0.460000] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    0.460000] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    0.460000] Switching to clocksource systick
[    0.460000] NET: Registered protocol family 2
[    0.460000] TCP established hash table entries: 512 (order: 0, 4096 bytes)
[    0.460000] TCP bind hash table entries: 512 (order: -1, 2048 bytes)
[    0.460000] TCP: Hash tables configured (established 512 bind 512)
[    0.460000] TCP: reno registered
[    0.460000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.460000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.460000] NET: Registered protocol family 1
[    0.460000] PCI: CLS 0 bytes, default 32
[    2.760000] rt-timer 10000100.timer: maximum frequncy is 2441Hz
[    2.790000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    2.810000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    2.830000] msgmni has been set to 117
[    2.830000] io scheduler noop registered
[    2.840000] io scheduler deadline registered (default)
[    2.850000] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[    2.870000] 10000c00.uartlite: ttyS0 at MMIO 0x10000c00 (irq = 20) is a 16550A
[    2.880000] console [ttyS0] enabled, bootconsole disabled
[    2.910000] m25p80 spi32766.0: s25fl064k (8192 Kbytes)
[    2.910000] 5 ofpart partitions found on MTD device spi32766.0
[    2.930000] Creating 5 MTD partitions on "spi32766.0":
[    2.940000] 0x000000000000-0x000000030000 : "Bootloader"
[    2.950000] 0x000000030000-0x000000040000 : "Config"
[    2.960000] 0x000000040000-0x000000050000 : "Factory"
[    2.980000] 0x000000050000-0x000000600000 : "Kernel"
[    2.980000] 0x000000600000-0x000000700000 : "User_CFG"
[    3.000000] gsw: setting port4 to ephy mode
[    3.000000] (unregistered net_device): port 4 link up (100Mbps/Full duplex)
[    3.000000] eth0: done loading
[    3.000000] rt3xxx-usbphy ubsphy.2: loaded
[    3.000000] rt2880_wdt 10000120.watchdog: Initialized
[    3.000000] sdhci: Secure Digital Host Controller Interface driver
[    3.000000] sdhci: Copyright(c) Pierre Ossman
[    3.000000] sdhci-pltfm: SDHCI platform and OF driver helper
[    3.000000] MTK MSDC device init.
[    3.340000] mtk-sd: MediaTek MT6575 MSDC Driver
[    3.350000] TCP: cubic registered
[    3.360000] NET: Registered protocol family 17
[    3.360000] 8021q: 802.1Q VLAN Support v1.8
[    3.380000] Freeing unused kernel memory: 1684K (802eb000 - 80490000)
[    3.420000] Button Hotplug driver version 0.4.1
[    7.950000] Loading modules backported from Linux version master-2013-06-27-0-gdcfa6d5
[    7.980000] Backport generated by backports.git backports-20130617-4-ge3220f5
[    8.000000] cfg80211: Calling CRDA to update world regulatory domain
[    8.040000] NET: Registered protocol family 10
[    8.050000] cfg80211: World regulatory domain updated:
[    8.070000] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[    8.070000] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[    8.100000] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[    8.100000] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[    8.130000] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[    8.140000] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[    8.220000] PPP generic driver version 2.4.2
[    8.230000] ip_tables: (C) 2000-2006 Netfilter Core Team
[    8.230000] xt_time: kernel timezone is -0000
[    8.230000] NET: Registered protocol family 24
[    8.230000] nf_conntrack version 0.5.0 (964 buckets, 3856 max)
[    8.230000] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   10.720000] device eth0 entered promiscuous mode
[   10.720000] br-lan: port 1(eth0) entered forwarding state
[   10.740000] br-lan: port 1(eth0) entered forwarding state
[   12.740000] br-lan: port 1(eth0) entered forwarding state

---------------------
root@OpenWrt:/proc# cat /proc/iomem
00000000-03ffffff : System RAM
  00000000-0025a407 : Kernel code
  0025a408-002ea5db : Kernel data
10000000-100000ff : /palmbus@10000000/sysc@0
10000100-1000011f : /palmbus@10000000/timer@100
10000120-1000012f : /palmbus@10000000/watchdog@120
10000200-100002ff : /palmbus@10000000/intc@200
10000300-100003ff : /palmbus@10000000/memc@300
10000b00-10000bff : /palmbus@10000000/spi@b00
10000c00-10001bff : serial
10100000-1010270f : /ethernet@10100000
10130000-10130f9f : /sdhci@10130000
10140000-101400ff : /pcie@10140000
10142000-101420ff : /pcie@10140000
20000000-2fffffff : pci memory