内核编译去掉USB驱动出现启动不了的问题

gaocaimary

启动现象如下
- H$ y7 n6 E* E[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
& p- r+ t" w- [# g% l[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
- _2 @; }# m* H/ U) k% d4 A[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
5 z0 q+ h4 K" M6 _* M[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    1.818481] omap_rtc: RTC power up reset detected
" p& s0 H1 r/ _  E; B& f; r" k9 _2 l[    1.824103] i2c /dev entries driver
) H" I6 ]% X% k, S[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
8 J$ R+ y4 s/ X  U. b5 f1 M[    1.837971] IR NEC protocol handler initialized
/ J8 v# V7 u9 W0 @5 Z[    1.842583] IR RC5(x) protocol handler initialized
+ ]0 T* k4 [, X% Y9 v[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
5 B* S/ e0 w& o* l3 ^5 t; ?[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
, U9 C( b# U- n' K. C5 e[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
1 N0 r! C% n# l0 s) W# y5 [, |2 S- x[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
0 Z- t; M( U+ p% E[    1.895285] cpuidle: using governor ladder
- e2 n/ R8 \- H, @[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
7 h& X$ _7 @/ z1 I1 J1 U[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
0 S0 {  R' O$ ?7 M[    1.942633] console [netcon0] enabled
) w( K- w) W# O5 n[    1.946844] netconsole: network logging started
! X- P. r. t( y! `3 K[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
: K1 f7 |( Z6 h' c/ _& e1 \1 d[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
( H% ]0 s, v9 l4 M  P* q2 T[    1.981557] Root-NFS: no NFS server address
7 U' }5 L4 V* A9 b  D[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
, v: f% r4 U+ F: X) R" v4 B5 M[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
* s+ x/ d/ ^" |# g[    2.014571] 1f01             512 mtdblock1  (driver?)
3 A( b- H; H; Q0 L# ^  t[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
+ f9 t; W& ^, b, S+ D7 T- V[    2.030825] 1f04          519040 mtdblock4  (driver?)
' e7 Q$ H3 `0 X% J2 W+ [! O[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
8 B, x( t/ N) m  W9 i[    2.046904] 1f07              64 mtdblock7
1 g/ r, f* o; x5 V+ |& K[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
9 e  b5 v4 A# g[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
; J; U, ]* |( Z+ \4 m[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
1 A: X( X$ r$ J# ~7 ?- y' ?[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
) `0 Q4 \, ]1 |% ]! r5 Y                                                                                                                                          
然后串口就没有反应了，紧急求助
& `, K% W- ?1 Z0 |$ o( E0 E
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