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
[    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
[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
  O( }9 O& @" u- W+ r9 n! _[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
( ^6 s, \) U+ F: {  O1 Z[    1.818481] omap_rtc: RTC power up reset detected
. X- c1 U* A6 R6 K) C[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
* H% m6 p1 m# k0 M. M0 p[    1.837971] IR NEC protocol handler initialized
4 _2 T7 Q) F" L/ U  j[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
- L7 y5 o/ E* W( L" G3 N/ H[    1.852136] IR JVC protocol handler initialized
2 L+ ?3 Z! u; ^4 T% ^/ ^2 Q8 t[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
+ c: A/ R7 e$ j$ e* B3 I[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
( b0 g- b" ^& S: X: R6 A: y4 S# A[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
3 W& `7 y+ f1 T[    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
* t* S1 W% u* m, v; H2 T[    1.921694] NET: Registered protocol family 17
3 F  J/ H4 |1 [) E# p[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
2 W7 z0 h" o- a! O[    1.946844] netconsole: network logging started
9 @: M; w3 k! K' e* @: l[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
2 m. n6 f/ D. z! x7 Y[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
; f% i" F3 [# k4 b[    1.981557] Root-NFS: no NFS server address
0 i4 Q0 f0 e8 Q[    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)
7 E9 g, W: r2 z1 [[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
$ n" i6 j0 S" y7 J, w1 s  k[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
$ W4 Z1 @$ s3 Q' G3 l" I[    2.030825] 1f04          519040 mtdblock4  (driver?)
. O) U# I9 Z: D) X5 g9 B. K[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
8 Q! U0 ]* o% M5 {+ }: W2 b[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
$ [" {; O6 j! E3 i[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
8 b/ h' e2 D2 I9 z  D' g[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
  P# h  u6 J9 a4 g6 p& c1 m, h[    2.077485]  (driver?)
$ a% A2 L$ `' {3 V$ v[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
, q7 {4 A: t# u& U2 g' W$ S( g                                                                                                                                          
然后串口就没有反应了，紧急求助
% s4 ^( q' o4 a! t6 H# n; N+ X$ [
1 \$ g; J, U1 f2 R4 w' ~' O7 u9 d; p* L

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。