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
0 g' `; V" U7 C- y' S. D1 ^3 T[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
& \# o3 ]1 w3 \- V3 e& B[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
3 Q1 H/ w$ c5 d! v[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
  R' J* y5 B2 L% o7 g[    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 j# j9 f1 e! T3 Q1 p[    1.824103] i2c /dev entries driver
, v  S% A9 k3 ~/ r/ C0 Z9 u% m[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
& t5 Z* M' {  \8 f[    1.837971] IR NEC protocol handler initialized
, g3 Q' J9 l+ H! E3 p7 ?: W) {[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
# j9 G. q: p2 b1 H& M3 U[    1.852136] IR JVC protocol handler initialized
' I) h0 A  ?" c+ t! ~[    1.856796] IR Sony protocol handler initialized
6 d4 _9 F3 I% i$ f[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
! |# M; F* M; P8 I$ h[    1.877882] IR LIRC bridge handler initialized
5 o3 j/ K: w' C  W% E[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
  I( b7 {- k8 g[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
. S, u! K* Q/ G( R8 [[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
/ H7 a  N* E& N6 y) n0 M[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
0 Q2 n6 m5 L! K- N5 c' O7 b9 r[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
8 H" f" t) Q5 V; C6 E5 P[    1.981557] Root-NFS: no NFS server address
[    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)
, j/ K  _2 U; V3 q6 \5 t! l[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
1 I( i3 x( w) B[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
% l$ J6 `. W# o7 h6 W[    2.025353] 1f03            4096 mtdblock3  (driver?)
& ^: L% {8 x- \7 g[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
" E% J+ a0 _" I1 B& D; R; ]+ N" V+ U[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
& x8 ?4 N. z7 A( ~6 C3 z! t[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
. d& n# p* @" g2 ^+ S9 r3 X" q[    2.061933] 1f08            2560 mtdblock8  (driver?)
& I1 I" Z) y  s& o3 H7 _[    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?)
[    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.
# Y" x9 W6 o* Z7 N2 D- B[    2.059503]  (driver?)
& X3 r$ L% e0 [8 q3 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。