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
. a) l$ d8 d- t, ~5 H8 ^[    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
5 Y$ v6 H) n8 h; c* B, V- @, r+ [[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
( y  k  l6 E. u" U2 F[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
: B$ W8 J# x6 l/ `/ G5 o[    1.818481] omap_rtc: RTC power up reset detected
[    1.824103] i2c /dev entries driver
3 H- }  S7 G+ q[    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
9 u% I, F- r  t3 A" [[    1.852136] IR JVC protocol handler initialized
[    1.856796] IR Sony protocol handler initialized
& M4 b/ b' f- d5 T$ h! H8 C[    1.861480] IR RC5 (streamzap) protocol handler initialized
- T% ?  Y8 t1 @[    1.867170] IR SANYO protocol handler initialized
1 P* c) V: J4 v# T: o" V3 P[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
, K6 V$ Y- \( P5 a8 d[    1.877882] IR LIRC bridge handler initialized
[    1.882369] Linux video capture interface: v2.00
+ V7 E, \7 R, @5 C- ~. S[    1.888722] watchdog watchdog: heartbeat 60 sec
" r' T) F1 {$ W8 l[    1.895285] cpuidle: using governor ladder
( p/ @* {, ?7 L% t: @9 u[    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
* |" ^* X+ ]- p# m[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
/ q7 V/ Z% C+ r( j3 f. l[    1.942633] console [netcon0] enabled
[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
" {! ~7 [2 y! j[    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)
[    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 ^# i2 }5 c0 B9 @[    2.025353] 1f03            4096 mtdblock3  (driver?)
[    2.030825] 1f04          519040 mtdblock4  (driver?)
4 ?4 O2 D3 ]4 e[    2.036225] 1f05              64 mtdblock5  (driver?)
* W1 r9 U- r; J* q" H8 P[    2.041536] 1f06             512 mtdblock6  (driver?)
1 b2 ~$ [9 a5 @% X* u7 b[    2.046904] 1f07              64 mtdblock7
[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
" W! R9 b6 m' O; \* o[    2.059503]  (driver?)
8 w- O9 {( i" p6 c! N0 n[    2.061933] 1f08            2560 mtdblock8  (driver?)
  v; n. ^* l7 m5 x5 c[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
. p: t. g. u2 c' U[    2.077485]  (driver?)
' v! P6 V2 c5 c( T) a# V- R1 ?[    2.079916] 1f0a              64 mtdblock10  (driver?)
! M$ j: D3 c/ ?( g7 g[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
                                                                                                                                          
$ ^7 z& O/ K" W- k0 W0 u然后串口就没有反应了，紧急求助

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。