3420 TTL刷机现象求解释

jxus***

TTL刷机的前面操作都搞定了，路由器通电后串口显示信息如下：

Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
%サ吷鍋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
SY[K彘 29328k/32768k available (2096k kernel code, 3440k reserved, 410k data, 148k 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... &摀I綕%AMlpj=1331200)
Mount-cache hash table entries: 512
猀Registered protocol family 16
SR5j厤ˉ箷乮s TP-LINK TL-MR3420
囡欀褧丧節丳CI controller with io_map_base unset
K蓵呇晛slab <bio-0> at 0
5%fixup device 0000:00:00.0
崶000:00:00.0: PME# supported from D0 D1 D3hot
pci 0000:00:00.0: PME# disabled
PCI: mapping irq 48 to pin1@0000:00:00.0
猈媿ˉ節乼o clocksource MIPS
猀Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
誂乪stablished hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
NET: Registered protocol family 1
呁烷 version 4.0 (2009/01/31) Phillip Lougher
Registering mini_fo version $Id$
JFFS2 version 2.2. (NAND) (SUMMARY)  漏 2001-2006 Red Hat, Inc.
yaffs Dec 27 2011 00:57:30 Installing.
msgmni has been set to 57
io scheduler noop registered
io scheduler deadline registered (default)
獤遍 8250/16550 driver, 1 ports, IRQ sharing disabled
畺贬250.0: ttyS0 at MMIO 0x18020000 (irq = 11) is a 16550A
console [ttyS0] enabled, bootconsole disabled
console [ttyS0] enabled, bootconsole disabled
P痠丄R71xx SPI Controller driver version 0.2.4
[ spi0.0: s25sl032a (4096 Kbytes)
猇蓫ˉ節乫or RedBoot partition table in spi0.0 at offset 0x3e0000
猇蓫ˉ節乫or RedBoot partition table in spi0.0 at offset 0x3f0000
挄浇褋partition table detected in spi0.0
spi0.0: no WRT160NL signature found
Creating 5 MTD partitions on "spi0.0":
0x000000000000-0x000000020000 : "u-boot"
铝00000020000-0x000000160000 : "kernel"
铝00000160000-0x0000003f0000 : "rootfs"
[倕裳パソ箒"rootfs" set to be root filesystem
mtd: partition "rootfs_data" created automatically, ofs=630000, len=FFFFFFFFFFDC0000
0x000000630000-0x0000003f0000 : "rootfs_data"
mtd: partition "rootfs_data" is out of reach -- disabled
铝000003f0000-0x000000400000 : "art"
铝00000020000-0x0000003f0000 : "firmware"
X諷箩}祽ソprobed
Y

选暽酵丄G71xx at 0xba000000, irq 5
Y
2秸箲乤n AR7240 built-in switch
Y+
选暽酵丄G71xx at 0xb9000000, irq 4
P痠丄R71xx hardware watchdog driver version 0.1.0
誂亀estwood registered
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
^X栔dev is 32505858 name is "mtdblock2"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.2, "mtdblock2"
yaffs: MTD device is not NAND it's type 3
-栔蒧scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000000: 0x6873 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000004: 0x5706 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000008: 0x9da8 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000010: 0x3100 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000014: 0x0200 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000018: 0xc000 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000001c: 0x0400 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000020: 0x9711 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000028: 0x4eeb instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000030: 0x46eb instead
Further such events for this erase block will not be printed
Empty flash at 0x00000038 ends at 0x00000040
此处循环类似代码
-栔蒧scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240000: 0x7b68 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240004: 0x9979 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240008: 0x3007 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0024000c: 0x3422 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240010: 0xc1d4 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240014: 0x237e instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240018: 0x86bf instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0024001c: 0xf3d6 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240020: 0xe1a9 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00240024: 0xd47c instead
Further such events for this erase block will not be printed
-栔蒧scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250000: 0x8332 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250004: 0x0f43 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250008: 0x9311 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0025000c: 0x1006 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250010: 0xe615 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250014: 0x2e97 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250018: 0x7c72 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0025001c: 0xd387 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250020: 0x96ae instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00250024: 0xfc1a instead
Further such events for this erase block will not be printed
妺丣FFS2 bitmask found at 0x00258c60
You cannot use older JFFS2 filesystems with newer kernels
-栔蒧scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260000: 0x8fc3 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260004: 0x0226 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260008: 0x77f0 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0026000c: 0xf8de instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260010: 0x9988 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260014: 0xb5f8 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260018: 0x3030 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0026001c: 0x2f9e instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260020: 0x47bc instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00260024: 0x9076 instead
Further such events for this erase block will not be printed
妺丣FFS2 bitmask found at 0x0026ae0c
You cannot use older JFFS2 filesystems with newer kernels
-栔蒧scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270000: 0x7fdb instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270004: 0xb02d instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270008: 0x5427 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0027000c: 0x141a instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270010: 0x54cd instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270014: 0x998e instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270018: 0x1b39 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0027001c: 0x87b3 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270020: 0xf283 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00270024: 0x5a00 instead
Further such events for this erase block will not be printed
-栔蒧scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280000: 0xe2fa instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280004: 0xad7e instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280008: 0x49b3 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0028000c: 0x02ac instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280010: 0xd7ee instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280014: 0x1bd4 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280018: 0xed48 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0028001c: 0x799b instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280020: 0xba5a instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00280024: 0x56c5 instead
Further such events for this erase block will not be printed
吷懕鍋refusing to erase blocks on filesystem with no valid JFFS2 nodes
empty_blocks 0, bad_blocks 0, c->nr_blocks 41
VFS: Cannot open root device "<NULL>" or unknown-block(31,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00             128 mtdblock0 (driver?)
1f01            1280 mtdblock1 (driver?)
1f02            2624 mtdblock2 (driver?)
1f04              64 mtdblock4 (driver?)
1f05            3904 mtdblock5 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
求高人解释为什么会出现这样的现象？

jxus***

将电容C496短接后没有出现乱码