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
- o" G1 _0 _8 |- W6 P* t[    1.608128] spi_davinci spi_davinci.1: Controller at 0xfef0e000
[    1.665922] davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
5 a7 G3 ^- d4 g9 s5 {$ b9 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
9 b7 O, p: y& s[    1.782316] _regulator_get: spi1.1 supply vcc not found, using dummy regulator
/ _% o( r- D4 v: s9 O. K  e# U[    1.790613] ads7846 spi1.1: touchscreen, irq 145
* ?- \9 f& U# w1 V[    1.796961] input: ADS7846 Touchscreen as /devices/platform/spi_davinci.1/spi_master/spi1/spi1.1/input/input0
# c/ q1 h# n! O[    1.811665] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    1.818481] omap_rtc: RTC power up reset detected
, }' E- L/ k/ B$ D8 U3 ?- Q! B; z[    1.824103] i2c /dev entries driver
7 v, d; E4 p. f[    1.831084] lirc_dev: IR Remote Control driver registered, major 253
" X' x: H7 C7 S# s8 b' K[    1.837971] IR NEC protocol handler initialized
# ?6 N5 d7 k4 S& ]  I[    1.842583] IR RC5(x) protocol handler initialized
[    1.847554] IR RC6 protocol handler initialized
( M( Y9 i3 a# T[    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
& u; l% |- K! E[    1.871935] IR MCE Keyboard/mouse protocol handler initialized
1 J/ }( v; Q; e8 M" W& K[    1.877882] IR LIRC bridge handler initialized
0 w& u1 ?" T: y: U8 Q# ][    1.882369] Linux video capture interface: v2.00
[    1.888722] watchdog watchdog: heartbeat 60 sec
8 }3 I* e$ D: G: P[    1.895285] cpuidle: using governor ladder
[    1.900118] cpuidle: using governor menu
[    1.907499] davinci_mmc davinci_mmc.0: Using DMA, 4-bit mode
4 _) Z$ I/ I6 l. t[    1.918396] TCP cubic registered
[    1.921694] NET: Registered protocol family 17
- {: q4 p* j  S[    1.927113] _regulator_get: deviceless supply cvdd not found, using dummy regulator
[    1.942633] console [netcon0] enabled
+ q; E  g% s* e  @[    1.946844] netconsole: network logging started
[    1.951985] davinci_emac davinci_emac.1: using random MAC addr: 72:9d:29:ed:bd:8d
, s4 y( K* z" J- K[    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
8 h* _9 o' e6 W[    1.985997] VFS: Unable to mount root fs via NFS, trying floppy.
- b) c2 h1 L1 i& x; I& B[    1.993259] VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
6 j2 S( E( Z4 T5 B+ h( B[    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?)
! B  ^. ]2 q, S5 v1 t) u9 A- k[    2.020016] 1f02             512 mtdblock2  (driver?)
[    2.025353] 1f03            4096 mtdblock3  (driver?)
/ R: K& h" V3 g# `! s[    2.030825] 1f04          519040 mtdblock4  (driver?)
3 I' D( w% w# z: Y8 x' w[    2.036225] 1f05              64 mtdblock5  (driver?)
9 @6 K1 ]% B9 J& G5 X( B; Q: ~. L" S[    2.041536] 1f06             512 mtdblock6  (driver?)
[    2.046904] 1f07              64 mtdblock7
( z- [2 ?1 d  @2 i* j[    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
[    2.059503]  (driver?)
7 z; y% E; l2 s3 {2 V[    2.061933] 1f08            2560 mtdblock8  (driver?)
% q4 ?8 i0 C% z- g[    2.067289] 1f09            4096 mtdblock9
[    2.071638] mmc0: new high speed SDHC card at address 1234
[    2.077485]  (driver?)
6 [9 d0 M+ p& O/ ]& b$ A3 f[    2.079916] 1f0a              64 mtdblock10  (driver?)
[    2.085120] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
  @; f  Z' S+ u% ~6 G% P; |3 G                                                                                                                                          
" B% W. P4 I8 z# _5 t: g然后串口就没有反应了，紧急求助

1 Z3 q. C% x. U" h0 H! s1 L

teddy

    2.051053] mmc0: host does not support reading read-only switch. assuming write-enable.
; b1 g/ Z: ^! k[    2.059503]  (driver?)
+ c) r3 E( k: T7 o. ]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。
8 g# ]3 e: y( t+ k( e