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
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
  [5 m! r+ e; V' x[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
) n' \) E) P1 B: Q" E; I* {[    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
[    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
[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
( H2 c% T% X" r" W$ ]0 ~[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
2 x5 y7 d2 g2 ~0 Z+ q% t[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
( v$ i0 j& j1 i4 g' x$ `$ |5 i[    1.847554] IR RC6 protocol handler initialized
5 ~7 J# D$ a; m& F, }/ c2 }. ^[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
9 s  w/ g' a/ q- ~: X) ?- A# T[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
8 {' u3 [" r9 l5 Z; {[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
& r2 W  F7 i. [3 Y0 ~[    1.888722] watchdog watchdog: heartbeat 60 sec
: G/ b  I( v0 ~. l' B/ K" Q' X[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
9 k- S" G5 H9 D( F[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
; E8 Z: }+ _. ]& I; Q1 M[    1.942633] console [netcon0] enabled
8 g( H& z' v- ?# D[    1.946844] netconsole: network logging started
( F& a0 [. _  D[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
; ?- H0 ~0 ~* g: C3 l[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
" c( b4 R- Z) b  ?! H. \1 {7 U[    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?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
- m& H3 h5 {+ ^" i6 K+ }[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
: J; y& M3 l8 D. l: j[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
5 w' A* q. ?2 n8 U+ d) Q[    2.061933] 1f08            2560 mtdblock8  (driver?)
' q! K6 j5 H! f- N[    2.067289] 1f09            4096 mtdblock9
6 V3 _# Z% c6 h6 W8 Y7 Y$ G[    2.071638] mmc0: new high speed SDHC card at address 1234
( ~6 a: _2 z' I[    2.077485]  (driver?)
  C, K4 }7 J; e3 b: }& N( e[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    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

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
0 e0 q, R1 d) u/ O1 k& W[    2.059503]  (driver?)
! [2 z6 T* `7 Q: t% k" p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。