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
; n7 `4 ]2 V, a5 C5 t* @[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
- O2 k1 q8 X$ w; n[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
' {8 X9 a* X  b( A6 `/ L1 m[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
: F6 @. x( x, W7 o# c4 y[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
% b5 w/ e, D! V5 _- e/ A. \7 j) C[    1.790613] ads7846 spi1.1: touchscreen, irq 145
[    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
" Q, j1 E+ `, s" h% Y0 u[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
  f2 M% G' G$ E( Z: A) A/ N& U[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
: Z% E. ]- p+ `[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
) c' h8 t8 g' B8 _[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
, k' ?: I1 ^: ?' B[    1.895285] cpuidle: using governor ladder
9 I* y# \9 f* b8 w: i1 l[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
3 }4 k2 `( ?# I  K+ W, G6 S( M[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
; o4 t& e0 P2 p[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
; j* b. q$ E+ a8 _+ c[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
6 B; J7 ?* s/ m- L6 k[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
5 R( i; c: b) ?2 I" Y# w[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
3 g' z* L! \* a; ?6 R[    1.981557] Root-NFS: no NFS server address
[    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)
0 u' I# C7 c9 _[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
4 |0 G3 j3 q/ Z+ R! `! F% m[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
3 `% g. z  C! N" Z% N[    2.025353] 1f03            4096 mtdblock3  (driver?)
' @# {2 i# M# y% q/ s$ M4 _/ t0 w[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
# i; k$ }6 {& G0 `; F[    2.041536] 1f06             512 mtdblock6  (driver?)
8 N1 I$ N+ S4 i& E' @1 ]8 K[    2.046904] 1f07              64 mtdblock7
, G8 w6 ]- y  T9 v2 R: k5 b" ^4 I[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
- }! |+ P' T- n) o; |[    2.061933] 1f08            2560 mtdblock8  (driver?)
9 W2 W2 S3 l* X; }9 z[    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?)
+ T& V  g& I% C$ a3 a[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
7 B; h# v4 k1 A3 t% w( @4 {                                                                                                                                          
然后串口就没有反应了，紧急求助

' x: ?. p8 _0 k. q9 c

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
4 S4 {$ N- i- f- ^. T# ?[    2.059503]  (driver?)
- O- @/ Y" j( q) A& i# U您的问题，可能是sd的wp管脚被lock了，请检查一下sd卡，跟usb驱动应该无关的。