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
[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
' K. e" W6 d- r2 F! z% ?8 ~, |[    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
5 p: K" A8 S/ o8 T1 Q1 h! A8 c[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
; g/ g9 t: l' @) h[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
+ N9 l" c1 F! L$ \3 z/ h0 ]# y: p1 q[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
  y5 e( |0 d% h+ i9 f[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
9 a" n+ x* f0 r1 ?: M( j[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
# [- U; e- u- U+ I, Z) r& C( L[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
) u$ `- u( C1 A7 H1 l6 Z[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
# c  H4 N0 k# H2 g+ }" I( V[    1.877882] IR LIRC bridge handler initialized
2 W# x3 e; A, g& x[    1.882369] Linux video capture interface: v2.00
3 z( {$ Q3 j# H( L[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
, b9 i3 [6 e) n6 I7 V0 |0 P[    1.900118] cpuidle: using governor menu
0 u8 R2 a+ F) U: {[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
/ \' \2 ?+ @8 G2 y& U[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
" e5 a$ {# D. }[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
9 T4 B, I0 k$ D9 A; J[    1.981557] Root-NFS: no NFS server address
3 q  z) m# j2 K. Q3 _/ K* O[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
  W1 u1 X. W0 ]2 T  N, D6 D[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
3 T4 F/ J: k$ d, |# a0 l' e[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
& j( ?  G# p: W[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
6 \+ m5 E( Q3 Z" ~: L[    2.059503]  (driver?)
  F1 N8 C1 m; a: Z, W$ w" C[    2.061933] 1f08            2560 mtdblock8  (driver?)
& d3 {2 k: u2 Q4 S[    2.067289] 1f09            4096 mtdblock9
$ s- j8 j, c% E- ?" c6 p( N5 h[    2.071638] mmc0: new high speed SDHC card at address 1234
# ]% o; M0 o: a/ x. e  }* |5 g5 L" e[    2.077485]  (driver?)
: u! U: |" L) N$ p$ P[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
: S% R" ~+ m/ w( ?3 _5 D                                                                                                                                          
7 d7 [* o3 D0 y然后串口就没有反应了，紧急求助
. G5 d8 ~- _; u1 B: `! Q, O0 q