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
2 I$ o& O- S( p- o: f' @+ p8 H[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
1 ]" y% X; `3 ]1 c0 |[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
( f3 i. z: M( M* q) v6 I5 I! b$ U[    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
[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
1 w! U3 Z" l$ N[    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
: R* [1 Y- i* a$ H[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
! Y* s* a( i- ~$ r[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
/ F" L7 J5 Z9 e* ?) R4 H/ r[    1.852136] IR JVC protocol handler initialized
5 ~' Q3 H- ~6 V  E" x* F[    1.856796] IR Sony protocol handler initialized
$ T# D# _7 |% t" l[    1.861480] IR RC5 (streamzap) protocol handler initialized
6 \' h7 j- f$ e) S2 o[    1.867170] IR SANYO protocol handler initialized
+ q3 J2 `: w# E2 l+ V- b[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
5 c9 I" W; M7 ]& o  [9 o[    1.882369] Linux video capture interface: v2.00
' f2 X! F/ R" I* \- |4 [[    1.888722] watchdog watchdog: heartbeat 60 sec
[    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
) L" Y9 |: |$ N+ f7 W[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
% U& w* @! Z& o' ^6 [7 O3 ~% K[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
) k4 m7 z# |" a2 |* N[    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)
[    1.981557] Root-NFS: no NFS server address
; S( d5 X' }+ j/ x* a# N[    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)
. n" C9 W6 v+ G5 @[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
. {3 H( d0 A2 u/ ]; Q' m& z% u  O[    2.009218] 1f00             128 mtdblock0  (driver?)
' j6 E7 Z8 d7 D$ R[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
/ Q8 Z: s. {$ U2 t9 u% p[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
( Q. c/ s& g. r* Z" M) h- l: {[    2.036225] 1f05              64 mtdblock5  (driver?)
: R% X. l" b6 j) z6 _[    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.
! q) t+ g: X5 z2 I[    2.059503]  (driver?)
' p0 R/ [; g1 y, J[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    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?)
$ f. z. S3 b) @) X5 |4 \[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
* }% c3 D/ K" o" Z                                                                                                                                          
然后串口就没有反应了，紧急求助
. \" t1 ]  I7 Y3 t( e4 X: K! s8 P. X

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
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。
" p# t% m' w# {+ o& O