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
0 w4 f& m; T1 F- ^[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
1 ]4 V4 y# ~" w" S, ?2 t[    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
, J. y) N9 j7 o# h, z8 ]4 p[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
0 \$ t9 U: u( m. J, ]) f[    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
. _& F. ]! B) q! W) A# T[    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
- z. \# l$ E6 k( p% ][    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
2 J- _& J+ n' k# J! \- y[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
6 t0 k/ l5 l. B; z0 ~" Q( }7 B# V2 }[    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
3 g% I* D( M# M[    1.900118] cpuidle: using governor menu
9 H9 d6 j4 z! F! U- G+ x5 n[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
/ a! Q3 ?6 N3 D6 i5 W. J[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
+ @1 P, P2 b4 E4 G0 F- {[    1.942633] console [netcon0] enabled
% F5 c$ |' x/ a0 q6 _[    1.946844] netconsole: network logging started
* F1 C! M( m% h: k( u1 M7 D[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
- x! r7 {1 t$ C! L& X3 {[    1.971301] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
" K, y! h8 ^8 ][    1.981557] Root-NFS: no NFS server address
[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
8 o0 i1 ?( y) _' X5 {[    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?)
[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
8 g% S% `! U. h2 c& O[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
5 d% q$ R8 |& \% }5 B1 \[    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?)
- h" _& F3 j  S* V1 M- L[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
% y+ T; M% O0 o0 W[    2.077485]  (driver?)
2 [& G& R+ a5 I% B5 W) y" Y[    2.079916] 1f0a              64 mtdblock10  (driver?)
1 c4 y- H8 d7 f5 U4 g) Q! s1 J& n[    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
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teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
; K  O/ w0 C- O5 M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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