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
; C0 t* Z8 G5 e5 ~0 q! L[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
: g, H& @6 A7 Y: b/ n[    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
9 p8 ?9 S9 {6 m[    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
: M7 w3 K6 j+ W+ m7 }+ W( X+ b0 U[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
! M% Q  ?/ |3 u1 `# h+ }( p[    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
, m3 ]+ c! K( h- w1 e5 K# A[    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
[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
- E2 _' K+ `" G/ S) [[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
8 G9 Y7 \5 l' d" H. `[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
  l, V' }. f0 v) K* B* ^! V[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
% ]# v, K" {" t1 {  y( h6 ?[    1.900118] cpuidle: using governor menu
* r1 ^+ S. ?3 I! P4 e& Z[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
7 ^3 j$ r' F0 J  j# o8 i, f[    1.918396] TCP cubic registered
& R' a# \6 J. H. S+ l[    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
; o5 {" B. J$ h; i[    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)
[    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
$ R1 r; A5 U4 l6 _/ H% ?/ Z[    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?)
/ h2 Z% I1 V& S[    2.014571] 1f01             512 mtdblock1  (driver?)
3 l1 n0 _. v% ?: N/ O& S[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
+ y  f; d+ [2 G# {+ i/ M, |  O: y[    2.041536] 1f06             512 mtdblock6  (driver?)
) T# g. D4 _6 h# f$ v$ s[    2.046904] 1f07              64 mtdblock7
0 l* \# S: u8 s$ E6 M3 t( Q, Y3 Y4 A[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
/ z& P; e* h, f1 P! t[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
; F3 c8 o# p$ B[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
9 G3 L7 m& i/ t1 ^9 y% |                                                                                                                                          
然后串口就没有反应了，紧急求助
+ V( r2 X0 c# `0 u- w

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
8 a7 b/ u# d  G[    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。