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
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
$ s  R  B+ Z0 P/ Z, F[    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
3 _- e3 l# s$ Q9 w[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
9 Z* b, z$ c! q  {# t* ]6 J% t[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
! B. O' s/ _/ h* N4 V: g- ^[    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
+ t4 }1 ~; Q/ z2 Y% e[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
0 b9 y/ N" e( `( z[    1.818481] omap_rtc: RTC power up reset detected
( |; b. j) {0 B5 G6 ]: @& O- R% d  I[    1.824103] i2c /dev entries driver
; m* J; O6 g+ W4 g[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
% @0 t9 z/ l1 M- R+ A, w[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
/ A& M) P# c/ C% y0 j" k; d+ h  N' m[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
! r) ?3 e1 I/ o1 |$ @+ m[    1.861480] IR RC5 (streamzap) protocol handler initialized
$ `7 K+ B6 i. w) {) x[    1.867170] IR SANYO protocol handler initialized
[    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
[    1.895285] cpuidle: using governor ladder
: k: F/ u; n/ t5 a7 T9 A[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
  }6 ~" q% s  {( R; \; V. J' K9 G[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
7 Y" s1 z6 J; V3 @% J7 |0 F4 n[    1.942633] console [netcon0] enabled
2 M' l( P& T8 s2 }5 K9 g+ o[    1.946844] netconsole: network logging started
/ ^% O1 g! V+ Q( P: A[    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.
& v$ _& i. @6 ^8 |[    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:
0 f8 J. n" r! w6 c; b1 f" g/ w[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
9 D! e# ?0 G4 _' x4 d[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
% ~% f# I4 l: J1 x+ Y[    2.041536] 1f06             512 mtdblock6  (driver?)
8 r/ I- L. |8 ~0 X4 _. ?8 u) g[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
. v5 W$ e$ P( ?" S: o[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
* {3 g4 Z7 X& s  R[    2.067289] 1f09            4096 mtdblock9
0 M  O: ^2 D" s& k5 T" u[    2.071638] mmc0: new high speed SDHC card at address 1234
( {( l# _4 K' U& t" x* M[    2.077485]  (driver?)
3 p/ ~1 _. G3 B4 O4 i3 R" ^[    2.079916] 1f0a              64 mtdblock10  (driver?)
: P' |" A& z( L# x6 [[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
$ @& E3 N. s" V4 V4 z8 v9 s  s: p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.
[    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。