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
) Q) z+ {1 N. X# v[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    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
2 b( q6 s; Y% a6 e$ U  |[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
' A; M% f+ o( h[    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
. f. T  g% y2 R: w% a' A- K$ s[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
; C9 ~2 z1 d3 ]6 s[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
- n* }2 D0 |8 c5 t& r[    1.861480] IR RC5 (streamzap) protocol handler initialized
* n& G+ N  H5 A5 E[    1.867170] IR SANYO protocol handler initialized
. R( g- I0 ?% C[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
! @/ i9 u# b4 M[    1.895285] cpuidle: using governor ladder
9 H5 @$ f( d% [0 a4 t[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
; ]! V8 u3 W: i) D  F2 J9 L- o[    1.918396] TCP cubic registered
  K! b* ?* I& X7 G% _! t5 ]! |5 ?+ r0 _[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
2 }: y* g4 ~7 Z* E[    1.942633] console [netcon0] enabled
[    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
8 _7 r7 t6 i# Z2 L3 X) A+ y8 o[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
* y) f9 v  l$ h2 |% \8 u1 T9 v[    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:
( b6 e5 b4 c$ a! Q4 z  L[    2.009218] 1f00             128 mtdblock0  (driver?)
+ w9 {. o7 I$ R8 \# t' |[    2.014571] 1f01             512 mtdblock1  (driver?)
0 S, @1 s0 [8 g[    2.020016] 1f02             512 mtdblock2  (driver?)
0 I2 K) P8 z0 e4 H% x[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
: [6 F, G8 P" @1 R+ [, h[    2.036225] 1f05              64 mtdblock5  (driver?)
[    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?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
( t# s$ k5 G  }2 s# i0 W[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
2 c. s# b- N: U  I8 \  C, E[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
+ N/ u/ u5 x7 F; }: @0 x0 i4 m然后串口就没有反应了，紧急求助

% ^) [, X2 K; h$ ~, x8 R1 g

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
; m+ @# F7 g! e0 B[    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。