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
& z! z! L3 u2 I3 P" F6 B/ i8 E( G[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
, I8 W; O% [" D9 y[    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
5 k! q9 A$ j- p! B8 Z- l4 y[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
, t7 I7 _. ~/ u1 S, m7 Z& J4 V[    1.818481] omap_rtc: RTC power up reset detected
6 ?& x6 R$ r/ l& R% C& k[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
" h* v& A' h& {8 w0 q3 r: A  _[    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
[    1.856796] IR Sony protocol handler initialized
7 b" ^5 k2 `% P" l" c; B- b/ I[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
$ m0 t( y+ G4 @% a[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
: P, |: m/ o) Z[    1.877882] IR LIRC bridge handler initialized
$ q5 Q: |4 E# ?2 X. K4 O[    1.882369] Linux video capture interface: v2.00
8 e& u: N6 y1 V$ ?2 N( m- ^[    1.888722] watchdog watchdog: heartbeat 60 sec
# a/ S/ Q+ L) f9 X  q/ q4 ~[    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
[    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
: V3 {- l4 v4 K% B% m% t[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
0 H1 P6 E# X# G( R[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
$ T! ], D( j3 K# I9 _[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
  A2 v+ c5 e3 N$ P+ Z5 A[    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:
[    2.009218] 1f00             128 mtdblock0  (driver?)
) I  B7 i7 N! [3 @% r- B[    2.014571] 1f01             512 mtdblock1  (driver?)
  b* q& u, F* N3 M[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
1 V4 b; o0 A9 n$ s[    2.036225] 1f05              64 mtdblock5  (driver?)
9 w& N1 u$ i1 D' S: x0 h[    2.041536] 1f06             512 mtdblock6  (driver?)
; J' ]4 F# {/ s: `[    2.046904] 1f07              64 mtdblock7
- H% \  @9 ]7 @+ k$ @: P' k[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
+ P3 v6 O6 @7 ?0 W' p[    2.067289] 1f09            4096 mtdblock9
6 T2 Q3 i/ _2 }[    2.071638] mmc0: new high speed SDHC card at address 1234
8 |' u; T5 n3 V3 n) a4 A$ `[    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)
                                                                                                                                          
$ z/ ^% I9 W/ Y* k$ Q! _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?)
% a/ g: B; N. p0 r  {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。