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
" j3 U# I- Y3 a6 L+ u[    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
0 v; L  H" |9 j2 `; L# D[    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
$ k! H1 ?0 h" }1 R  w[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
. f9 v# q- Q+ u( ]; }& ]6 ][    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
6 u/ X. }  \" F1 y  P, m[    1.861480] IR RC5 (streamzap) protocol handler initialized
* N* f2 h5 I1 x7 ^[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
0 M$ q% z) ~) P  K[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
1 v7 ?& K5 _. Z7 b% o" {[    1.895285] cpuidle: using governor ladder
( g# [5 B. ^, C( v) a. Y[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
: z8 k3 j+ _3 i' Z( h[    1.918396] TCP cubic registered
8 `3 u% D0 {% Y# L2 H( [" M[    1.921694] NET: Registered protocol family 17
) M! R0 O# {8 G  T' m[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
; G! y7 D3 T) ]# Q[    1.942633] console [netcon0] enabled
6 B) W  X! [( R1 E: \! I2 l) M[    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 \& \+ l  h/ l7 h8 q# E[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
% i( }" k8 f& W8 w. F[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
7 w. N2 U5 l, A4 d+ S[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
5 K- N4 ^* E5 Y! j* A[    2.014571] 1f01             512 mtdblock1  (driver?)
3 p3 l0 R; `: D7 @* h* i+ X0 @[    2.020016] 1f02             512 mtdblock2  (driver?)
1 n" r- v! V. V7 {7 y& Q[    2.025353] 1f03            4096 mtdblock3  (driver?)
- Q0 v! v; _1 p3 D& w, O[    2.030825] 1f04          519040 mtdblock4  (driver?)
* X; a' H. B: R) s5 m+ t[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
8 V. e7 Q; x: g[    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?)
! I6 C; \  @* p( ~& R3 K& S& w* ^[    2.067289] 1f09            4096 mtdblock9
( i  {1 ~* I; c5 Z' t[    2.071638] mmc0: new high speed SDHC card at address 1234
* i# l! ^7 u8 T3 x[    2.077485]  (driver?)
9 j+ g" N2 t% j[    2.079916] 1f0a              64 mtdblock10  (driver?)
7 `& J& V4 I1 X4 c) e[    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
% M4 g2 ^. Y- F/ @( E4 J: K" x
% r: O+ E: s# }

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
  g5 D/ |7 j' ~& Q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。
6 h+ H/ r& \5 l3 X/ Q' ~