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
; t6 ?6 v1 `4 ]$ X3 ~, X3 z[    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
# {: U- o, K# D[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
' x1 [/ r( @% j) T[    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
- G* ~6 V* i$ n; I+ d7 x  \. v# a[    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
[    1.837971] IR NEC protocol handler initialized
[    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
2 [3 @7 D/ U# ?[    1.861480] IR RC5 (streamzap) protocol handler initialized
6 U; K$ g0 f" k% {[    1.867170] IR SANYO protocol handler initialized
[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
7 H# O  `4 `/ H& v: a6 X7 ~, v[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
; G6 m! t+ @! q/ m[    1.888722] watchdog watchdog: heartbeat 60 sec
# a1 {0 U3 e+ c5 t[    1.895285] cpuidle: using governor ladder
0 ~+ Y% h  x: Y4 j: g[    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
, J' J' j! ?# ?& c7 o' I* _: `[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
+ t/ O5 w3 Z! O8 D3 w. U[    1.942633] console [netcon0] enabled
0 i1 j5 w" g; _+ ~% T; w5 V1 j  X[    1.946844] netconsole: network logging started
[    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)
* {  S5 \. q0 H6 s. y  }9 O[    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)
[    2.000512] Please append a correct "root=" boot option; here are the available partitions:
+ I, k  w# A$ N2 D, p4 x[    2.009218] 1f00             128 mtdblock0  (driver?)
0 B3 c# V6 X& F3 n  [* k9 z[    2.014571] 1f01             512 mtdblock1  (driver?)
1 y/ `7 r* p. J  O' l[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
[    2.036225] 1f05              64 mtdblock5  (driver?)
[    2.041536] 1f06             512 mtdblock6  (driver?)
: p) H. y7 \3 ~) v' p[    2.046904] 1f07              64 mtdblock7
9 J" H6 L2 O: e& U[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
[    2.061933] 1f08            2560 mtdblock8  (driver?)
0 ~4 k+ F; i9 v$ P/ J# _[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
6 Z$ |/ T2 X% r[    2.077485]  (driver?)
[    2.079916] 1f0a              64 mtdblock10  (driver?)
! e, ?  Y; N* A0 }  e/ R[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
1 N' u4 s! ?) x- p; U                                                                                                                                          
. G( u2 \. ^9 S然后串口就没有反应了，紧急求助

/ _( @% H  \* u/ I

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。