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
7 s5 K3 J* J: m7 U' o; @3 q' f[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
4 i; D( ~% l, G, P; z[    1.765823] davinci_mdio davinci_mdio.0: timed out waiting for user access
$ g. I5 F0 L6 N9 j[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
: O" g, F; d" q/ A[    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
6 O* K" a" N* o1 H6 z7 w( y  }[    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
[    1.837971] IR NEC protocol handler initialized
) ^8 Z* O2 V0 I5 i+ P. U( L4 |[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
* i. r+ T0 s# B# R# N[    1.856796] IR Sony protocol handler initialized
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
0 ]: s  I1 Z3 i, A# ?7 |* q1 \- f[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
/ w. M. `0 a6 l2 @: J1 Y[    1.888722] watchdog watchdog: heartbeat 60 sec
4 q- @' b# g" g( J- C[    1.895285] cpuidle: using governor ladder
: M* k( G/ s; l; R4 e[    1.900118] cpuidle: using governor menu
, o* s( o+ c+ G1 s) Z. y( H" V2 W[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
* ^) o& T6 A' i; k" p- u[    1.918396] TCP cubic registered
1 Y5 ~/ m# S' Q9 c0 M) f[    1.921694] NET: Registered protocol family 17
$ p/ d1 }; a( A4 }% @5 w[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
" O( \( c% k7 D/ V1 C  Q* B; I[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
" ?' ]/ o  P4 E5 g9 ~9 @[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
3 H8 p0 t3 H$ Z8 S& j* @[    1.981557] Root-NFS: no NFS server address
5 _! s( v' y7 X  h; }* n+ s  Q[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
# t* V% _4 H! f2 ?+ I% |. P" i[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
! H+ M/ T+ c& n[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
* {# t+ p7 d6 N[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
' b" N& V- `9 l: w; a3 r[    2.041536] 1f06             512 mtdblock6  (driver?)
* r0 N6 Z+ }" U[    2.046904] 1f07              64 mtdblock7
8 m# R- d  p6 v6 |[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
+ D/ r1 U* J* d8 q* `/ V, E[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
6 W! T1 m  N* Y$ J[    2.079916] 1f0a              64 mtdblock10  (driver?)
/ T* K* f7 C' C0 g5 R) M" M[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
* Q. g& _$ }/ ~! j  u. p                                                                                                                                          
然后串口就没有反应了，紧急求助
, [: _  \/ c& Y9 t6 A" z' R
$ G1 m3 K5 k6 k( h9 r5 V6 [; C

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
/ g: ?8 r% K( V/ t% d' l6 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。
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