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 _. K. G5 b) N# B[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
( J9 ^9 g$ v5 R0 @- [- y2 R[    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 \; q! W3 ~0 h0 o[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
! g. T1 Z. r/ M0 A- O[    1.790613] ads7846 spi1.1: touchscreen, irq 145
5 w  L$ y" y. _" f# \( h/ P; m3 k3 c' {[    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
  E6 C* s- Z+ V/ d+ D7 v[    1.824103] i2c /dev entries driver
3 a% w' E: z3 i) s, T1 q. Y[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
) b3 y  B: f5 e3 X- N[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
- }# f; @. F% W" }5 R[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
9 Y/ h' X: Z) L- ~0 n9 M7 c0 z, x' y[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
+ v" A9 y( T9 o7 {5 s[    1.877882] IR LIRC bridge handler initialized
[    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
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
' O- I( F- F7 e! ], v[    1.921694] NET: Registered protocol family 17
+ t) G9 T2 i/ D) D0 G[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
/ S0 k5 B  Y" Y2 \" v, G2 `, |[    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)
) q2 O$ k3 Q) `4 T& m& R& R[    1.981557] Root-NFS: no NFS server address
. C4 ^. \8 T7 \! J( a' `% M[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
. ^1 R. n2 b* y[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
, U. x9 z" u; W+ n[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
! |8 F# T7 f4 A" f  v[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
& s) s0 a7 T( w( G) J[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
1 W2 a: }" i! z$ ]  O6 `" j[    2.036225] 1f05              64 mtdblock5  (driver?)
6 D1 d0 O7 b/ n8 B  e, I[    2.041536] 1f06             512 mtdblock6  (driver?)
5 ^, P, y9 u& h; U8 y, M- ]( Q[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
% d* s' ]% p3 D1 c* c' z" T[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
+ `/ x/ e# R- R4 M; d3 K[    2.067289] 1f09            4096 mtdblock9
' Q0 _( h' h( K8 h3 @9 T" A) D* k[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
  [2 n2 v+ X  H5 x2 D$ B9 J                                                                                                                                          
然后串口就没有反应了，紧急求助
) a3 I5 b7 k+ S, Z9 i/ R

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
+ h# s# T& N, f. ~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。