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
# T" Y8 Q8 G, @8 J4 j[    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
7 W* Z/ H# Z: O3 l" y( Z- j[    1.773673] davinci_mdio: probe of davinci_mdio.0 failed with error -5
: j% F( W: [/ a& A( `9 u( O[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
[    1.790613] ads7846 spi1.1: touchscreen, irq 145
+ Y, n3 P; Y# G) \3 Q, \( j* V[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
" k9 T5 V& W; L: ]2 f0 ~3 }[    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
% p4 g1 h5 W' {1 c1 H% O" ~[    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
[    1.847554] IR RC6 protocol handler initialized
2 n) Z' ^1 f/ _9 r1 `[    1.852136] IR JVC protocol handler initialized
- _- h9 `2 a" |5 b[    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 }$ U( H) W8 a% X[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
+ g. x# P2 J7 g/ U/ E* Y[    1.900118] cpuidle: using governor menu
: ~9 A, L9 X7 Z$ |[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
8 n4 s1 `2 @7 q+ a: R8 }0 V[    1.921694] NET: Registered protocol family 17
/ x6 {, r7 w1 a0 D: V* O[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
* Y1 s) w7 E2 T* v6 D[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
2 o3 L/ `' P( Y$ r5 R4 {: G# b[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
+ ?( D. u, a* a$ B+ d( M( m* @[    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.
[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
1 Z7 G9 @/ d/ U2 Q( }9 ^# }4 E[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
* N+ |5 P$ h/ R[    2.009218] 1f00             128 mtdblock0  (driver?)
" L/ `* U1 l$ K: s! I1 N4 M[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
' O2 U7 T" u' S" c[    2.025353] 1f03            4096 mtdblock3  (driver?)
3 {) l* Y0 P/ e[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
4 Z# N2 L6 I7 r0 I4 P/ t, q/ i[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
; {: D: [- M; B& x8 q" R: i; J- w[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
+ J& |8 S8 b! X! W- D- w% x; L[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
$ c  B6 o; t9 w7 Q1 g( _5 C[    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)
                                                                                                                                          
然后串口就没有反应了，紧急求助

2 K9 b: _) V  B& i: N

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
- ^1 j  f$ q8 X5 l( @[    2.059503]  (driver?)
" D# a* y4 q, {- S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。
8 B1 R* C1 Y4 S; s% x! ~' o