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
- H: N/ P8 b' [+ s9 R! t[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
) ?% u+ q7 f% C5 E# e  }4 v+ ~# C[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
, T; J5 Y2 a! ~& q+ [[    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
, P2 K" t$ S) h6 s% S# E* L! T[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
: T! ^5 k( W2 }& O: l5 T. x$ i1 k+ d[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
- K# @$ w( m: A6 v: _[    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
. j" C. i. `6 c- D% y+ m[    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
$ Q/ [& f' W- F; A- K[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
7 j7 `2 \9 i$ N: H8 d[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
5 m8 m5 r8 E+ X[    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
: Y" K4 W( K- r" m# \[    1.877882] IR LIRC bridge handler initialized
: w) ~7 p# p; P# J' X1 r9 j[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
- A& ?& i; o$ J$ X2 j[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
1 q" h6 ^/ F# |. C+ h# f[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
/ ~' ^6 R5 k: N' ]0 p' O[    1.921694] NET: Registered protocol family 17
, w+ G/ F7 [. |4 S[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
5 }6 }9 H1 ]" R" q! d[    1.946844] netconsole: network logging started
[    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
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
& t/ M; K* Z8 n7 w1 Y[    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?)
; L$ c, G, x6 f9 G. @1 d; j[    2.014571] 1f01             512 mtdblock1  (driver?)
. l0 ^+ q5 S7 T' Y' X[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
6 h! y- w( a% r' o2 J[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
. j: }- j# [- i0 ^" d' q[    2.059503]  (driver?)
% }0 v7 s, g" P' J+ _1 `" x. Y[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
1 U! l8 i" y( u" v+ O[    2.077485]  (driver?)
8 q& e- X& F/ X0 A( l. p5 H) L. _[    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
9 E6 ]; v  ~# @& {- V+ l$ X
  m6 k; i  Q$ @7 r! r8 f7 {  z4 U

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。