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
' m# K- Z8 o4 j[    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
7 u$ E5 b; y2 ?$ L) c+ Y7 h[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
: H7 s. q( O  R3 q$ b4 W# B[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
9 O  e9 p, D2 o  c) z, t$ b1 R8 G! _' r[    1.790613] ads7846 spi1.1: touchscreen, irq 145
$ @/ D$ E* y7 B# X[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
+ k0 D3 N( _% }  W$ y8 ~* y[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
9 G( }4 H  a' F[    1.818481] omap_rtc: RTC power up reset detected
  M& ~- L. P2 h& B. U[    1.824103] i2c /dev entries driver
+ S7 Y- ~8 M! o+ A[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
) f( A  ^3 v& w- D[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
; A7 [3 o& m- c! F7 y[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
9 ^5 R0 o1 k) Q# w$ y[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
- l! G5 z8 A# d" y$ C/ L  O[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
9 F0 H8 L% {+ U& ^; O[    1.877882] IR LIRC bridge handler initialized
, m( [( W5 N0 v. D9 w! G[    1.882369] Linux video capture interface: v2.00
: a# k; K2 T1 \/ O1 m7 O  M[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
$ J4 e* L: T5 }* B[    1.900118] cpuidle: using governor menu
( E- _& ?7 d* r! B; O) b9 G[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
: |" z& c  Z! _0 b" b[    1.946844] netconsole: network logging started
/ _  d) I# u! I6 i7 w; S[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
) W. l% x5 |8 {+ H8 I[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
  N" ^1 R6 E% \8 D, c- T' P" y[    1.981557] Root-NFS: no NFS server address
1 Z) a, K+ C8 [1 j[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
# O, {4 t( N9 B/ _; d4 q2 [[    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?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
; Q5 k# c8 {& Z# Y; K[    2.025353] 1f03            4096 mtdblock3  (driver?)
6 W5 ]) b2 U3 H# T7 s[    2.030825] 1f04          519040 mtdblock4  (driver?)
1 t; U+ f. R$ T( o; L( N6 [[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
# b9 j1 r- z" u6 R[    2.046904] 1f07              64 mtdblock7
0 I2 ?+ q# ]8 c/ ], c[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
& i% h: S: A& y4 Y" n[    2.067289] 1f09            4096 mtdblock9
2 a1 ]" T" @0 L7 }[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
) g2 D* ]* v" `[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
2 y1 a4 z1 {' T然后串口就没有反应了，紧急求助

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
) y; g0 d- u# W) C1 W" L5 T6 a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。