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
; Z  q& ]% L  F: S, m# Z8 J. S  \6 ^6 @[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
; G4 Z8 u% O6 q[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
+ c7 |# S8 Z, S' |. i: r[    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
5 P; V( M7 g; O( H9 C[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
9 _5 }& P, \% ^" E- b8 c$ P6 T[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
3 ]9 N" p" `0 m/ S; {[    1.790613] ads7846 spi1.1: touchscreen, irq 145
1 t2 c$ ^2 s% {" o: a[    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
[    1.824103] i2c /dev entries driver
[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
8 |9 C6 K6 F0 e5 O0 p9 c[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
4 Q; h" X& t3 p[    1.852136] IR JVC protocol handler initialized
$ _' Z2 n* K3 t2 ]: e% C[    1.856796] IR Sony protocol handler initialized
9 {% O# W# w! g5 j6 v[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
[    1.877882] IR LIRC bridge handler initialized
4 X7 _1 C' a9 [- i/ `[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
+ I' R1 r0 a5 R' m[    1.918396] TCP cubic registered
2 g  g' ]! c# n6 b) f5 M! D# J[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
0 u5 x2 k7 _" ?1 S& Q5 N- E[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
! y/ a$ {$ j$ M/ `2 Y% h) [[    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.
9 r3 u1 a) p$ g' n[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
  v( d& \  e1 b% Y; Z, z' f) Y/ o8 r[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
( `% O$ i/ X" }6 f$ b% X* M" |8 Z[    2.009218] 1f00             128 mtdblock0  (driver?)
- R  E& L: D5 O0 l% B[    2.014571] 1f01             512 mtdblock1  (driver?)
3 G/ k8 J, O7 h8 r$ B, G; e[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
( ~- G9 N9 h% p( g% n# j[    2.036225] 1f05              64 mtdblock5  (driver?)
8 [: J3 \& I- R0 s[    2.041536] 1f06             512 mtdblock6  (driver?)
( b3 i2 K* K+ q1 c/ e7 ]# S9 Y7 l[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
6 Q3 N9 [- S6 K# t! m+ Y[    2.059503]  (driver?)
& V+ B" y& [/ M) t" _; P[    2.061933] 1f08            2560 mtdblock8  (driver?)
& M& O9 s2 D. ^  c3 R  g0 e! E0 b[    2.067289] 1f09            4096 mtdblock9
$ \+ E7 B: G; s) G[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
9 M3 l# i3 y* p$ U9 z! Y; X[    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
( `8 F' f8 s$ E1 v% H2 r2 H  R
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teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
# W( l# e* L5 L; h[    2.059503]  (driver?)
# i, w/ E9 z2 U, {9 R% b7 J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。