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
  b# W( c. x: ^9 y[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
  B6 q5 j! a  m3 M; s4 M+ W[    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
: l) t2 F2 W( t- k, X[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
+ r4 v+ Y5 I% u[    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
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
2 u! c* M/ Z8 m( o; ~( s9 i[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
. _  \/ X9 [0 U& |  O, M[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
$ h& x' F: P: ]4 V! n[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
' f8 d0 S/ Y6 I" G* C6 _2 R[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
+ m, a) [( z6 o) o" Y[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
* a+ L* x- N  `4 W8 K2 X+ j6 U[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
8 S4 J# b  d- ?! }* |8 r& [[    1.942633] console [netcon0] enabled
. E6 J" D9 O5 {4 c2 D$ U[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
5 n' z, ]1 Q) T6 S9 F( X1 b# p[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
- A5 x; O: ]; D2 M$ W8 y3 l' [* c[    1.981557] Root-NFS: no NFS server address
- @  X! `) l2 ]* W[    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)
[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
9 i" c& @+ S% \4 S8 Y& ?) W[    2.009218] 1f00             128 mtdblock0  (driver?)
( y  _3 G8 e# o7 h; q[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
8 N$ B" K; }2 k8 H" z! F  I* F[    2.025353] 1f03            4096 mtdblock3  (driver?)
6 V2 N& W4 R) Y1 |8 v[    2.030825] 1f04          519040 mtdblock4  (driver?)
1 V9 O+ P0 K) n; C4 z% I[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
5 A2 R4 C) q1 K" X/ f( z$ u[    2.046904] 1f07              64 mtdblock7
% W" t/ n, ^' Q* s; M0 Q[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
9 E- k) w2 ~, l4 g2 _8 x0 u; v4 @[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
  @" [* n' d, p, G! D3 n  {[    2.079916] 1f0a              64 mtdblock10  (driver?)
9 a& S& {4 }! b/ u[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
然后串口就没有反应了，紧急求助
  @8 h/ l! Q" y" Q& G$ q

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
, t$ K/ e3 G' U4 W. I5 c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。