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
6 j. I# h$ e4 }8 _- Y. z[    1.601224] Read MAC addr from SPI Flash: ff:ff:ff:ff:ff:ff
[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    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
[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
% Y, k8 d% x( J[    1.790613] ads7846 spi1.1: touchscreen, irq 145
: _* }, p9 ^) S[    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
, p2 u- N$ W8 G* [* D[    1.837971] IR NEC protocol handler initialized
[    1.842583] IR RC5(x) protocol handler initialized
" F$ m9 M7 y7 L3 n9 i4 v8 ~! \[    1.847554] IR RC6 protocol handler initialized
[    1.852136] IR JVC protocol handler initialized
$ g3 q8 B( n: E3 h8 K- E" X, ^[    1.856796] IR Sony protocol handler initialized
$ P7 R* {: v1 Y! U2 h% A[    1.861480] IR RC5 (streamzap) protocol handler initialized
[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
. m- ^5 d6 w/ G! o( v$ D7 I4 V( w[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
0 ?3 s5 U4 N0 U- Z[    1.888722] watchdog watchdog: heartbeat 60 sec
5 q  x, ~$ a- M2 }- d[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
. K$ u" k" \. S2 G# Y[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
& V7 R5 F# m  \* l[    1.946844] netconsole: network logging started
1 A' G- }0 D  O- k1 C9 G[    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)
$ F; m* D; ~& j/ S7 H[    1.981557] Root-NFS: no NFS server address
5 J2 ~" w) G! i, _[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
) W# n& [% \& p# v9 J6 g0 y[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
5 n6 R2 {2 C  Y) B; S[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
! U3 m' s9 L  z, P: |' {% _9 ?[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
2 Y& _# `% P9 T/ C[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
* f6 r# _3 u. O8 @6 r( E[    2.046904] 1f07              64 mtdblock7
* ~8 M) r% i; t& L8 _+ D% a[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
% y5 Z2 f  I% t; T. N: j[    2.059503]  (driver?)
5 ~' ^+ i" v& o! u[    2.061933] 1f08            2560 mtdblock8  (driver?)
[    2.067289] 1f09            4096 mtdblock9
: |) O5 ]9 |1 }5 V( F2 m9 R[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
& a+ ~  j1 Z3 C5 O4 K- w9 {) h[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
7 G, u4 U4 Y9 m2 }/ W: S& j                                                                                                                                          
9 [) Y0 g3 ^6 `" s然后串口就没有反应了，紧急求助

% E& |2 o; W0 O. N4 c

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
/ L7 q, O" A$ L1 |( }4 h# |9 @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。