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
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
+ U( S2 f+ a; q) z' {/ d9 R6 U[    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
[    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
) `, M7 d# b3 j2 I" i- l[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
1 H) g% |! [# E* A[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
[    1.837971] IR NEC protocol handler initialized
  C. w1 k( `( y2 A) |6 r: n* `[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
$ X; X3 T6 |# Q2 d3 q; G# V3 `0 L[    1.852136] IR JVC protocol handler initialized
7 q2 s* u3 t: }5 a[    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
) a  H% n/ _' ^" d[    1.877882] IR LIRC bridge handler initialized
3 n3 R4 ?8 J" A[    1.882369] Linux video capture interface: v2.00
3 |( A+ [1 s5 D3 h[    1.888722] watchdog watchdog: heartbeat 60 sec
[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
[    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
[    1.946844] netconsole: network logging started
2 i2 p! Y) e$ x1 Q  w- s$ ]7 d8 v[    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.
[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
5 s1 c# k/ ?" d0 |$ c# f[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
[    2.009218] 1f00             128 mtdblock0  (driver?)
* i/ r6 S' R& Z% F4 _8 T3 c6 a( k1 ?[    2.014571] 1f01             512 mtdblock1  (driver?)
[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
; p& c. Q% F6 m4 q[    2.030825] 1f04          519040 mtdblock4  (driver?)
: _2 `7 Q7 b5 A" _4 i[    2.036225] 1f05              64 mtdblock5  (driver?)
* w4 ^5 A1 f  O: p[    2.041536] 1f06             512 mtdblock6  (driver?)
7 x- Z4 z& H9 B0 W3 V, [5 [[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
4 a3 J, ?+ [9 H$ z  S9 S" @[    2.059503]  (driver?)
/ H3 }% V3 L6 J" c3 v) [! T7 w[    2.061933] 1f08            2560 mtdblock8  (driver?)
0 W3 h8 I2 f9 O* X9 v8 S[    2.067289] 1f09            4096 mtdblock9
. T  F) E8 \: w& ?3 s[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
+ S; B; P, t8 M+ \[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
0 `$ A) [+ t: H, [然后串口就没有反应了，紧急求助
2 p& ?+ Y1 `6 w

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    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。
2 c* c( h% l  K) i